Piston gas power well energy storage power generation system and energy storage power generation method

Abstract

The present application relates to the technical field of energy storage power generation, in particular to a piston type gas power well energy storage power generation system and energy storage power generation method. The energy storage power generation system comprises a gas power well, a lifting well, a falling well, a piston assembly, an isolation device, a power generation device and a gravity block. The energy storage power generation system utilizes the characteristics that ammonia and hydrogen chloride are extremely soluble in water and have a large amount of dissolution, provides a power system that can be not limited by resources and natural conditions, and through the power system, the heavy object is lifted to store energy, and then through the heavy object with stored energy, the purpose of stable power generation is achieved; or power generation or power output is directly carried out through the power system. The system optimizes the power supply area, realizes the grid, miniaturization and unitization of the power supply area, avoids long-distance power supply between cross-regions, reduces power supply line investment and power supply power loss, and can increase or decrease power generation load at any time, and matches the power grid power consumption in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage and power generation, and in particular to a piston-type gas-powered well energy storage and power generation system and an energy storage and power generation method. Background Art

[0002] Currently, thermal and hydropower are the primary sources of power generation, accounting for 90% of total electricity generation. Thermal power accounts for 72%, hydropower for 18%, nuclear power for 4%, wind power for 4.5%, and solar power for 1.5%. Geothermal power, tidal power, and biomass power contribute negligible amounts. There is an uneven distribution of coal resources between economically developed regions and regions. The southeastern coastal areas, with their developed economies and high electricity consumption, are poor in coal, oil, and natural gas resources, while the economically underdeveloped western regions are rich in coal, oil, and natural gas reserves. This uneven distribution of resources necessitates the need for interregional, ultra-long-distance power, gas, and oil supply.

[0003] For example, the West-to-East Power Transmission Project builds thermal power plants in coal-rich mineral regions like Zhundong and Santanghu, and transmits this electricity to the economically developed southeastern regions via thousands of kilometers of ultra-high voltage direct current (UHVDC) transmission lines. The West-to-East Gas Transmission Project transports oil and natural gas from areas like Dushanzi and Karamay to the economically developed southeastern regions via thousands of kilometers of natural gas and oil pipelines. This energy-generating process requires a massive investment in the construction of power transmission lines, gas pipelines, oil pipelines, and transportation roads. Furthermore, power transmission lines incur significant losses during transmission, and gas and oil pipelines require additional power for oil and gas transportation.

[0004] Hydropower is constrained by numerous factors, including water resources, topography, and terrain, forcing it to select construction sites based on natural conditions. After decades of development and construction, the most economically profitable sites have largely been completed. The remaining sites, however, are often difficult to develop and construct, and offer poor economic returns. Constrained by natural conditions, the total amount of hydropower that can be developed is limited. Hydropower also faces significant variability in natural water flow and its flow patterns. Furthermore, hydropower stations are subject to the principle of "power regulation follows water regulation," resulting in unstable monthly and annual power generation.

[0005] At this stage, the level of utilization of new energy has been further improved, and the emergence of new energy products has also promoted higher and higher energy utilization rates. We are vigorously developing renewable energy such as solar energy and wind energy to alleviate the problem of energy shortage.

[0006] Wind power is constrained by geography and climate, requiring site selection based on wind conditions. Typically, locations with good wind conditions are far from urban and rural areas, resulting in high construction and transmission costs. Wind power also has numerous drawbacks, including unstable and uncontrollable power generation, large land occupation, noise pollution, and ecological damage. Constrained by natural conditions and cost-effectiveness, the total amount of wind power that can be developed is also limited.

[0007] In recent years, solar power generation has developed rapidly. It boasts numerous advantages, including no risk of exhaustion, safety, noiselessness, zero pollution emissions, unrestricted resource distribution, the ability to utilize building rooftops, local power generation without the need for fuel or transmission lines, high energy quality, a short construction period, and rapid energy acquisition. However, it also has significant drawbacks. Solar panel production is highly polluting and energy-intensive, with low energy density and the need to occupy a large area. The energy generated depends on weather conditions, including the seasons, day and night, and whether the weather is cloudy or sunny. Compared to thermal power generation, the cost of generating electricity is high. The biggest drawback of solar power generation is its dependence on weather conditions, day and night, and whether the weather is cloudy or sunny, resulting in unstable power generation and a time difference between power generation and grid consumption.

[0008] To compensate for the instability of wind and solar power generation, especially the inability of solar power to generate electricity at night, various energy storage measures have emerged, including battery storage and pumped storage. However, to date, there is no complete solution that meets technical, economic and market requirements.

[0009] The many shortcomings of wind power and solar power generation mentioned above have led to a lot of wasted electricity. Although the installed capacity is large, the installed utilization hours are very low, and it is sometimes even called "junk electricity."

[0010] Due to uneven resource distribution, uneven power consumption, and uneven power consumption processes, all of the aforementioned power generation methods rely on a comprehensive and robust power grid, particularly a high-voltage grid connected over long distances, to achieve a balanced supply and demand for power generation and consumption. This requires continuous investment in the construction of new power grids and the maintenance of existing ones.

[0011] From the above, we can see that although wind power and solar power generation still have a large room for development, due to their shortcomings, they cannot become the main force of power generation in the power grid. For a long time in the future, the main force of power generation in the power grid will still be thermal power, and traditional fossil energy will still be the main force and foundation of energy. The energy utilization efficiency of thermal power is generally around 40%, and the use of fossil energy in thermal power generation will bring about a series of problems such as carbon emissions, environmental pollution, reserves, and transportation distances that need to be faced for a long time.

[0012] Technical issues

[0013] In the process of utilizing energy for power generation, a new type of energy storage power generation system is designed to realize that the power generation system can be built anywhere, is not constrained by resources, is not constrained by natural conditions, has easy and easy access to resources, can be recycled, is safe, environmentally friendly, and has stable and reliable power generation. This will optimize the power supply area, realize gridding, miniaturization, and unitization of the power supply area, avoid long-distance power supply across regions, reduce investment in power supply lines, reduce power loss, and be able to increase or decrease the power generation load at any time to match the power consumption of the power grid in real time.

[0014] Technical Solutions

[0015] A piston-type gas-powered well energy storage and power generation system, comprising a gas-powered well, a lifting well, a lowering well, a piston assembly, an isolation device, a power generation device, and a gravity block;

[0016] The gas-powered well has a sliding cavity inside for the piston assembly to reciprocate, a solution pool is provided at the bottom of the sliding cavity, and a mutually independent gas injection pipeline, liquid injection pipeline and liquid outlet pipeline are provided in the well wall of the gas-powered well. The gas injection pipeline is used to inject a gas that is highly soluble in water into the gas-powered well, the outlet of the gas injection pipeline is located at the bottom of the sliding cavity, the outlet of the liquid injection pipeline is located at the bottom of the solution pool, and the inlet of the liquid outlet pipeline is located at the bottom of the solution pool. A first truss beam is provided at the top of the gas-powered well to provide support for the piston assembly, and a first pulley is provided on the first truss beam;

[0017] The interior of the lifting shaft is provided with an ascending channel for lifting the gravity block, the top of the lifting shaft is provided with a second truss beam, and the second truss beam is provided with a second pulley;

[0018] The interior of the drop well is provided with a descending channel for the gravity block to descend, the top of the drop well is provided with a third truss beam, and the third truss beam is provided with a third pulley;

[0019] The top of the lifting shaft is connected to the top of the drop shaft by a track, and the bottom of the lifting shaft is connected to the bottom of the drop shaft by a tunnel. The tunnel is used for the gravity block to enter the bottom of the ascending channel from the bottom of the descending channel;

[0020] The piston assembly is located in the sliding chamber of the gas-powered well, and the piston assembly includes a piston block, a connecting frame, a support roller and a connecting rope. The support roller is installed on the side wall of the piston block, and the piston block is connected to the inner wall of the sliding chamber through the support roller. A sealing structure is provided between the side wall of the piston block and the inner wall of the sliding chamber, and the sealing structure is located between a pair of support rollers. The connecting frame is fixed to the top of the piston block, and one end of the connecting rope is fixed to the connecting frame. The connecting rope has a free end connected to the gravity block, and the free end of the connecting rope is suspended in the lifting well through the guidance of the first pulley and the second pulley;

[0021] The isolation device is located between the sliding cavity and the solution pool, and has a telescopic end surface that isolates the gas in the sliding cavity from contacting the liquid in the solution pool;

[0022] The power generation equipment is installed above the drop shaft. A drum is connected to the output shaft of the power generation equipment. A steel wire rope is wound on the drum. One end of the steel wire rope is fixed to the drum. The steel wire rope has a connecting end connected to the gravity block. The connecting end of the steel wire rope is suspended in the drop shaft through the guidance of the third pulley.

[0023] Preferably, the sealing structure includes a first sealing ring and a second sealing ring, both of which are sleeved on the side wall of the piston block, and a watertight cavity for accommodating water is formed between the first sealing ring and the second sealing ring.

[0024] Preferably, a water tank for containing water is provided on the piston block, a communicating hole is provided on the inner wall of the watertight cavity, and the bottom of the water tank is connected to the watertight cavity through the communicating hole.

[0025] Preferably, an air shaft is provided in the middle of the solution pool, the bottom of the air shaft is fixed to the bottom of the solution pool, and a fan is provided inside the air shaft.

[0026] Preferably, a ventilation structure is provided between the air shaft and the solution pool along the radial direction of the air shaft, the ventilation structure is located below the isolation device, the ventilation structure includes an air barrier layer, a ventilation pipe and a sponge layer, the air barrier layer is covered on top of the sponge layer, the sponge layer is immersed in the water of the solution pool, the ventilation pipe is embedded in the sponge layer, the ventilation pipe is connected to the side wall of the air shaft, and the side wall of the ventilation pipe is provided with air holes.

[0027] Preferably, the isolation device includes an inflatable rubber bag, which is sleeved on the side wall of the air shaft. The inflatable rubber bag performs telescopic movement in the radial direction of the air shaft under the control of the air pump.

[0028] Preferably, the gas-powered well includes an ammonia-powered well and a hydrogen chloride-powered well, the ammonia-powered well is provided with a first lifting well corresponding to the ammonia-powered well, the hydrogen chloride-powered well is provided with a second lifting well corresponding to the hydrogen chloride-powered well, and the drop well is located between the first lifting well and the second lifting well;

[0029] The top of the first lifting shaft is connected to the top of the lowering shaft by a track, and the bottom of the first lifting shaft is connected to the bottom of the lowering shaft by a tunnel;

[0030] The top of the second lifting shaft is connected to the top of the lowering shaft through a track, and the bottom of the second lifting shaft is connected to the bottom of the lowering shaft through a tunnel.

[0031] Preferably, an ammonia storage tank is provided on one side of the ammonia power well, and the ammonia storage tank is connected to the gas injection pipeline in the ammonia power well through a pipeline.

[0032] Preferably, a hydrogen chloride gas storage tank is provided on one side of the hydrogen chloride gas-powered well, and the hydrogen chloride gas storage tank is connected to the gas injection pipeline in the hydrogen chloride gas-powered well through a pipeline.

[0033] Preferably, an ammonium chloride solution storage tank is provided between the ammonia power well and the hydrogen chloride power well, and the ammonium chloride solution storage tank transports the ammonium chloride solution to the injection pipeline of the ammonia power well and the injection pipeline of the hydrogen chloride power well through pipelines.

[0034] Preferably, an ammonium chloride solution tank containing ammonia water is provided on one side of the ammonia power well, and the ammonium chloride solution tank containing ammonia water is connected to the liquid outlet pipeline of the ammonia power well through a pipeline.

[0035] Preferably, an ammonium chloride solution tank containing hydrochloric acid is provided on one side of the hydrogen chloride gas-powered well, and the ammonium chloride solution tank containing hydrochloric acid is connected to the liquid outlet pipeline of the hydrogen chloride gas-powered well through a pipeline.

[0036] Preferably, a mixing tank is provided between the ammonia chloride solution tank containing aqueous ammonia and the ammonia chloride solution tank containing hydrochloric acid, the ammonia chloride solution tank containing aqueous ammonia is connected to the mixing tank via a pipeline, the ammonia chloride solution tank containing hydrochloric acid is connected to the mixing tank via a pipeline, and the mixing tank is connected to the ammonia chloride solution storage tank via a pipeline.

[0037] Preferably, a reaction tank is provided between the ammonia power well and the hydrogen chloride power well. The reaction tank is connected to the ammonia storage tank through a pipeline. The reaction tank is connected to the hydrogen chloride storage tank through a pipeline. The reaction tank, the ammonia storage tank and the hydrogen chloride storage tank constitute a regeneration system for ammonia and hydrogen chloride.

[0038] Preferably, the gas powered well, the lifting well and the drop well are all embedded below the surface.

[0039] Preferably, the gas-powered well, the lifting well and the lowering well are all constructed beside the mountain, and the power generation equipment is located at the top of the mountain slope.

[0040] The present invention also provides a piston-type gas-powered well energy storage and power generation system, comprising a gas-powered well, a piston assembly, an isolation device, and a power generation device;

[0041] The axial direction of the gas power well is arranged horizontally. The interior of the gas power well has a sliding cavity for the piston assembly to reciprocate. A solution pool is provided on one side of the sliding cavity. The solution pool and the sliding cavity form an L-shaped structure. A truss column is provided on the other side of the gas power well to provide traction to the piston assembly. A diverting pulley is provided on the truss column.

[0042] The well wall of the gas-powered well is provided with mutually independent gas injection pipelines, liquid injection pipelines and liquid outlet pipelines. The gas injection pipeline is used to inject a gas that is highly soluble in water into the gas-powered well. The outlet of the gas injection pipeline is located inside the sliding cavity, the outlet of the liquid injection pipeline is located at the bottom of the solution pool, and the inlet of the liquid outlet pipeline is located at the bottom of the solution pool.

[0043] The power generation equipment is installed on the truss column, and a drum is connected to the output shaft of the power generation equipment;

[0044] The piston assembly is located in the sliding cavity of the gas power well, and the piston assembly includes a piston block, a connecting frame, a support roller and a connecting rope. The support roller is installed on the side wall of the piston block, and the piston block is connected to the inner wall of the sliding cavity through the support roller. A sealing structure is provided between the side wall of the piston block and the inner wall of the sliding cavity, and the sealing structure is located between a pair of support rollers. The connecting frame is fixed to the top of the piston block, one end of the connecting rope is fixed to the connecting frame, and the other end of the connecting rope is wound on the reel through the guidance of the diverting pulley;

[0045] The isolation device is located between the sliding cavity and the solution pool, and has a telescopic end surface for isolating the gas in the sliding cavity from contacting the liquid in the solution pool.

[0046] Preferably, the sealing structure includes a first sealing ring and a second sealing ring, both of which are sleeved on the side wall of the piston block, and a watertight cavity for accommodating water is formed between the first sealing ring and the second sealing ring.

[0047] Preferably, a water tank for containing water is provided on the piston block, a communicating hole is provided on the inner wall of the watertight cavity, and the bottom of the water tank is connected to the watertight cavity through the communicating hole.

[0048] Preferably, an air shaft is provided in the middle of the solution pool, the bottom of the air shaft is fixed to the bottom of the solution pool, and a fan is provided inside the air shaft.

[0049] Preferably, a ventilation structure is provided between the air shaft and the solution pool along the radial direction of the air shaft, the ventilation structure is located below the isolation device, the ventilation structure includes an air barrier layer, a ventilation pipe and a sponge layer, the air barrier layer is covered on top of the sponge layer, the sponge layer is immersed in the water of the solution pool, the ventilation pipe is embedded in the sponge layer, the ventilation pipe is connected to the side wall of the air shaft, and the side wall of the ventilation pipe is provided with air holes.

[0050] Preferably, the isolation device includes an inflatable rubber bag, which is sleeved on the side wall of the air shaft. The inflatable rubber bag performs telescopic movement in the radial direction of the air shaft under the control of the air pump.

[0051] The present invention also provides a piston-type gas-powered well energy storage and power generation system, comprising a gas-powered well, a piston assembly, an isolation device, a connecting rod, a crankshaft, and a power generation device;

[0052] The gas-powered well has a sliding cavity inside for the piston assembly to reciprocate, a solution pool is provided at the bottom of the sliding cavity, and a mutually independent gas injection pipeline, liquid injection pipeline and liquid outlet pipeline are provided in the well wall of the gas-powered well. The gas injection pipeline is used to inject a gas that is highly soluble in water into the gas-powered well. The outlet of the gas injection pipeline is located at the bottom of the sliding cavity, the outlet of the liquid injection pipeline is located at the bottom of the solution pool, and the inlet of the liquid outlet pipeline is located at the bottom of the solution pool.

[0053] The piston assembly is located in the sliding cavity of the gas power well, and the piston assembly includes a piston block, a connecting frame, a support roller, a connecting rod and a crankshaft. The support roller is installed on the side wall of the piston block, and the piston block is connected to the inner wall of the sliding cavity through the support roller. A sealing structure is provided between the side wall of the piston block and the inner wall of the sliding cavity, and the sealing structure is located between a pair of support rollers. The connecting frame is fixed to the top of the piston block, and the connecting frame is connected to the crankshaft through a connecting rod;

[0054] The isolation device is located between the sliding cavity and the solution pool, and has a telescopic end surface that isolates the gas in the sliding cavity from contacting the liquid in the solution pool;

[0055] The output shaft of the power generation device is connected to one end of the crankshaft.

[0056] Preferably, the sealing structure includes a first sealing ring and a second sealing ring, both of which are sleeved on the side wall of the piston block, and a watertight cavity for accommodating water is formed between the first sealing ring and the second sealing ring.

[0057] Preferably, a water tank for containing water is provided on the piston block, a communicating hole is provided on the inner wall of the watertight cavity, and the bottom of the water tank is connected to the watertight cavity through the communicating hole.

[0058] Preferably, an air shaft is provided in the middle of the solution pool, the bottom of the air shaft is fixed to the bottom of the solution pool, and a fan is provided inside the air shaft.

[0059] Preferably, a ventilation structure is provided between the air shaft and the solution pool along the radial direction of the air shaft, the ventilation structure is located below the isolation device, the ventilation structure includes an air barrier layer, a ventilation pipe and a sponge layer, the air barrier layer is covered on top of the sponge layer, the sponge layer is immersed in the water of the solution pool, the ventilation pipe is embedded in the sponge layer, the ventilation pipe is connected to the side wall of the air shaft, and the side wall of the ventilation pipe is provided with air holes.

[0060] Preferably, the isolation device includes an inflatable rubber bag, which is sleeved on the side wall of the air shaft. The inflatable rubber bag performs telescopic movement in the radial direction of the air shaft under the control of the air pump.

[0061] Preferably, the plurality of gas power wells are arranged linearly along the axial direction of the crankshaft, and the connecting frame of the piston assembly in each gas power well is connected to the crankshaft through a connecting rod.

[0062] The present invention further provides an energy storage and power generation method of the piston-type gas-powered well energy storage and power generation system, comprising the following steps:

[0063] Step 1: Fill the gas-powered well with ammonium chloride solution at the designed water level, set the isolation device to the extended state, inject ammonia into the sliding cavity of the gas-powered well, extend the piston assembly to the highest limit of the gas-powered well, and place the gravity block at the bottom of the lifting well;

[0064] Step 2: Set the isolation device to a contracted state. The liquid surface of the solution pool contacts the ammonia gas in the sliding chamber, causing the ammonia gas to dissolve in the ammonium chloride solution. As the ammonia gas dissolves in the ammonium chloride solution, the air pressure in the well decreases, and the piston assembly begins to move downward. The connecting rope and pulley system lifts the gravity block in the lifting well. When the piston assembly reaches the lowest limit of the gas-powered well, the gravity block is lifted to the wellhead of the lifting well.

[0065] Step 3: Transfer the weight block to the wellhead of the drop shaft through the wellhead track, and connect the weight block to the wire rope on the drum at the output shaft end of the power generation equipment. The weight block falls along the drop shaft. During the falling process, the wire rope and pulley system drive the generator to rotate and generate electricity;

[0066] Step 4: After the gravity block falls to the bottom of the well, move along the tunnel to the bottom of the gravity block lifting well, and then follow steps 1 to 3 to start the next cycle.

[0067] The present invention further provides an energy storage and power generation method of the piston-type gas-powered well energy storage and power generation system, comprising the following steps:

[0068] Step 1: Fill the gas-powered well with ammonia chloride solution at a designed water level, set the isolation device to an extended state, inject ammonia gas into the sliding cavity of the gas-powered well, and extend the piston assembly to the far right of the gas-powered well;

[0069] Step 2: The isolation device is set to a contracted state. The liquid surface of the solution pool contacts the ammonia gas in the sliding chamber, causing the ammonia gas to dissolve in the ammonium chloride solution. As the ammonia gas dissolves in the ammonium chloride solution, the air pressure in the well decreases, causing the piston assembly to move to the left, thereby driving the power generation equipment to generate electricity.

[0070] Step 3: When the piston assembly moves to the leftmost side of the gas-powered well, the isolation device is set to an extended state, and ammonia is injected into the sliding cavity of the gas-powered well, thereby pushing the piston assembly back to the rightmost side of the gas-powered well;

[0071] Step 4: Follow steps 1 to 3 to start the next cycle.

[0072] The application further provides an energy storage power generation method of the piston-type gas power well energy storage power generation system.

[0073] Step one, filling the gas power well with ammonia chloride solution at a designed water level, setting the isolation device to an extended state, injecting ammonia gas into the sliding cavity of the gas power well, and rotating the piston assembly to the highest limit of the gas power well;

[0074] Step two, setting the isolation device to a contracted state, the liquid surface of the solution pool being in contact with the ammonia gas in the sliding cavity, the ammonia gas dissolving in the ammonia chloride solution, the gas pressure in the well decreasing as the ammonia gas dissolves in the ammonia chloride solution, the piston assembly starting to move downward, and further driving the power generation equipment to generate power;

[0075] Step three, when the piston assembly runs to the lowest limit of the gas power well, setting the isolation device to the extended state, injecting ammonia gas into the sliding cavity of the gas power well, and further pushing the piston assembly back to the highest limit of the gas power well;

[0076] Step four, starting the next cycle according to steps one to three.

[0077] Beneficial effects

[0078] 1. The piston-type gas power well energy storage power generation system has extremely low stability requirements, the power well has low stability requirements during the dissolving process and can control the stability; the heating of the decomposition of ammonium bisulfate has low stability requirements for heating, and the power of the auxiliary power generation system such as solar energy and wind energy can be used to heat it; it can also be combined with a thermal power plant to heat ammonium bisulfate by using waste heat of thermal power; or fossil energy such as coal can be used for heating, and the efficiency is much higher than that of thermal power; thermal power is constrained by the Carnot cycle, and the power generation efficiency of fossil energy is generally about 40%, while the energy conversion efficiency of the application can reach more than 90%;

[0079] 2. The piston-type gas power well energy storage and power generation system sets a solution at the bottom of the power well, sets a piston system in the power well, fills the power well with ammonia and hydrogen chloride gas which are easily soluble in water, and lifts the piston at the same time. When the piston is lifted to the highest limit, the gas filled in the power well is kept at a standard atmospheric pressure, and then the rubber bag is opened to isolate the solution and gas, so that the gas and solution come into contact. In the process of gas dissolving in the solution, the air pressure in the power well keeps decreasing. Affected by the atmospheric pressure outside the piston, the piston starts to move downward, and in the process of moving downward, it lifts the gravity block from the low position to the high position. When the piston runs to the power well, When it is in the lower limit position, the gravity block is also lifted to the highest position, and the gravity block is moved horizontally to the gravity block drop well, and falls by gravity in the gravity block drop well, thereby driving the generator to generate electricity, realizing that it can be built anywhere, is not constrained by resources, is not constrained by natural conditions, resources are easy to obtain, resources can be recycled, it is safe, environmentally friendly, and the power generation is stable and reliable, thereby optimizing the power supply area, realizing the gridding, miniaturization and unitization of the power supply area, avoiding long-distance power supply across regions, reducing the investment in power supply lines and power loss, and being able to increase or decrease the power generation load at any time to match the power consumption of the power grid in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] Figure 1 This is a schematic planar structural diagram of an underground layout of a piston-type gas-powered well energy storage and power generation system according to an embodiment of the present invention;

[0081] Figure 2 yes Figure 1 A longitudinal section of a piston-type gas-powered well energy storage and power generation system;

[0082] Figure 3a yes Figure 2 A partial enlarged schematic diagram of point A in the middle;

[0083] Figure 3b It is a schematic diagram of the internal structure of the ventilator structure;

[0084] Figure 3c Schematic diagram of the layout structure of the ventilation pipe;

[0085] Figure 3d It is a schematic diagram of the assembly structure of the isolation device and the solution pool;

[0086] Figure 3e It is a cross-sectional structural view of the tunnel;

[0087] Figure 4 This is a schematic diagram of the internal structure of the ammonia power plant;

[0088] Figure 5 It is a schematic diagram of the internal structure of the lifting shaft;

[0089] Figure 6It is a schematic diagram of the internal structure of the drop shaft;

[0090] Figure 7 It is a schematic diagram of the assembly structure of the mixing tank;

[0091] Figure 8 This is a schematic diagram of the planar structure of a piston-type gas-powered well energy storage and power generation system arranged on the ground and next to a mountain in an embodiment of the present invention;

[0092] Figure 9 yes Figure 8 A schematic elevation view of a piston-type gas-powered well energy storage and power generation system;

[0093] Figure 10a yes Figure 8 Schematic diagram of the structure of the ammonia power well;

[0094] Figure 10b yes Figure 8 Schematic diagram of the structure of the middle lifting track;

[0095] Figure 10c yes Figure 8 Schematic diagram of the structure of the mid-descent track;

[0096] Figure 10d yes Figure 8 Schematic diagram of the structure of the hydrogen chloride gas power well;

[0097] Figure 11 This is a schematic structural diagram of a piston-type gas-powered well energy storage and power generation system in a horizontal arrangement according to an embodiment of the present invention;

[0098] Figure 12a This is a schematic structural diagram of a piston located at the top of a sliding cavity in a piston-type gas-powered well energy storage and power generation system with a connecting rod and a crankshaft according to an embodiment of the present invention;

[0099] Figure 12b This is a schematic structural diagram of a piston-type gas-powered well energy storage and power generation system with a connecting rod and a crankshaft in an embodiment of the present invention, in which the piston is located in the middle of a sliding cavity;

[0100] Figure 12c This is a schematic structural diagram of a piston-type gas-powered well energy storage and power generation system with a connecting rod and a crankshaft in an embodiment of the present invention, in which the piston is located at the bottom of the sliding cavity;

[0101] Figure 13 This is a schematic structural diagram of parallel arrangement of power wells in a piston-type gas power well energy storage and power generation system with connecting rods and crankshafts according to an embodiment of the present invention;

[0102] Figure 14 It is a schematic diagram of the planar structure of the ammonia and hydrogen chloride gas regeneration system;

[0103] Figure 15 It is a schematic diagram of the internal structure of the reaction tank;

[0104] Figure 16 It is a schematic diagram of the assembly structure of the reaction tank.

[0105] Figure 1: 1. Ammonia power well; 2. Hydrogen chloride power well; 3. Lifting well; 4. Drop well; 5. Power generation equipment; 6. Piston assembly; 7. Isolation device; 8. Air shaft; 9. Ventilation structure; 10. Gravity block; 11. Ammonia storage tank; 12. Hydrogen chloride storage tank; 13. Ammonium chloride solution storage tank; 14. Ammonium chloride solution tank containing ammonia water; 15. Ammonium chloride solution tank containing hydrochloric acid; 16. Mixing tank; 17. First reaction tank; 18. Second reaction tank; 19. Sliding cavity; 20. Solution tank; 21. Gas injection pipeline; 22. Liquid injection pipeline; 23. Liquid outlet pipeline; 24. First truss beam; 25. Ascending channel; 26. Second truss beam; 27. Descending channel; 28. Third truss beam; 29. ​​Track; 30. Tunnel; 31. Wire rope; 32. Loading car; 33. Top line of slope; 34. Toe line of slope; 35. Connecting rod; 36. Crankshaft; 37. Liquid ammonia storage tank; 38. Liquid hydrogen chloride storage tank; 39. Bulk feeder; 40. Mixing blade; 41. Electromagnetic heating plate; 61. Piston block; 62. Connecting frame; 63. Support roller; 64. Connecting rope; 65. First sealing ring; 66. Second sealing ring; 67. Watertight cavity; 68. Water tank; 91. Air barrier; 92. Ventilation pipe; 93. Sponge layer.

[0106] Modes for Carrying Out the Invention

[0107] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0108] like Figure 1-16 As shown, the present invention utilizes the characteristics of ammonia and hydrogen chloride being highly soluble in water and having a large solubility, and provides a power system that is not restricted by resources and natural conditions. The power system is used to increase the energy storage of heavy objects, and then the energy-stored heavy objects are used to achieve the purpose of stable power generation; or power generation or power output is directly performed through the power system.

[0109] One aspect of the present invention is a vertical power system and power generation system that is not restricted by terrain conditions. A solution is placed at the bottom of a power well, and a piston system is installed within the power well. Ammonia and hydrogen chloride, both of which are highly soluble in water, are then filled into the power well while the piston is raised. When the piston is raised to its maximum limit, the gas in the power well is maintained at a standard atmospheric pressure. The rubber bag is then opened, isolating the solution from the gas, allowing the gas to come into contact with the solution. As the gas dissolves in the solution, the pressure in the power well decreases. Due to the atmospheric pressure outside the piston, the piston begins to move downward, and during this downward movement, it lifts a gravity block from a low position to a high position. When the piston reaches the lower limit of the power well, the gravity block is also lifted to its highest position, moving the gravity block horizontally to the gravity block drop well. There, the weight block falls by gravity, driving the generator to generate electricity.

[0110] The gas dissolves in the solution, generating a pressure difference, which lifts the gravity block to store energy, and then the gravity block falls to generate electricity, completing the process of "storing energy and generating electricity by dissolving gas in solution".

[0111] The second content of the present invention is a power system and power generation system that are arranged obliquely on a slope next to a mountain. The internal structure and principle of the power well are basically the same as those of the vertical power system, the difference being that the power well is arranged close to the slope based on the terrain. The gravity block lifting track is consistent with the power well and is arranged close to the slope. During the downward movement of the piston of the power well, the gravity block is lifted from the foot of the slope to the top of the slope along the track. The gravity block is translated to the upper end of the gravity block falling track. The gravity block falling track is the same as the gravity block lifting track and is arranged close to the slope. The gravity block slides down to the bottom of the slope along the gravity block falling track. In this process, it drives the generator to generate electricity.

[0112] The third content of the present invention is that the power well system is arranged on the ground, horizontally or according to the ground. The internal structure and principle of the power well are basically the same as those of the vertical power system, the difference is that the power well is arranged horizontally on the ground.

[0113] The fourth aspect of the present invention is that the piston in the power well drives the crankshaft to rotate through the connecting rod, and then the power generated during the up and down movement of the piston is converted into torque through the crankshaft and transmitted to the outside. The entire process is similar to that of a car's piston engine. For example, if four power wells are connected in parallel, it is similar to an inline 4-cylinder engine in a car. The piston movement output process is a two-stroke process. Taking the ammonia power well as an example, when the piston is at the top of the power well, the gas filled in the power well is maintained at a standard atmospheric pressure. Then, the rubber bag is opened to separate the solution and the gas from the solution. As the gas dissolves in the solution, the air pressure in the power well continuously decreases. The piston is affected by the external atmospheric pressure and begins to move downward. The connecting rod drives the crankshaft to rotate, and the tension generated by the downward movement of the piston is transmitted to the crankshaft through the connecting rod, driving the crankshaft to rotate, forming torque that is transmitted to the outside. At this point, the power well has completed its first stroke. When the piston reaches the lowest position, the rubber bag that isolates the solution from the gas will be inflated to isolate the gas in the well from the solution. During the upward movement of the piston, ammonia is also filled into the well. The inflation process maintains the power well at 1 atmosphere. When the piston reaches the top of the power well, the power well completes the second stroke and starts a new cycle.

[0114] The fifth aspect of the present invention is a circulation system. During the operation of the ammonia power well, ammonia dissolves in the ammonium chloride solution to form an ammonium chloride solution rich in ammonia water; during the operation of the hydrogen chloride power well, hydrogen chloride dissolves in the ammonium chloride solution to form an ammonium chloride solution rich in hydrochloric acid. The two solutions are mixed in an ammonium chloride crystallization precipitation tank in a ratio that allows for complete reaction to form a supersaturated ammonium chloride solution. Ammonium chloride crystals are cleared out in the tank, and the crystallized ammonium chloride is collected by a collection device. The ammonium chloride solid is sent to the ammonia and hydrogen chloride regeneration system. In the reaction tank of the regeneration system, the ammonium chloride solid reacts chemically with sulfuric acid to produce ammonium bisulfate solid and hydrogen chloride gas. The hydrogen chloride gas is collected and supplied to the hydrogen chloride power well for recycling. The ammonium bisulfate solid is heated and decomposed into sulfuric acid and ammonia gas. The ammonia gas is collected and supplied to the ammonia power well for recycling.

[0115] The entire cycle process is as follows: ammonia gas dissolves in ammonium chloride solution + hydrogen chloride dissolves in ammonium chloride solution → the two solutions are mixed in the ammonium chloride crystallization sedimentation tank to form a supersaturated ammonium chloride solution, and ammonium chloride crystals are cleared → the ammonium chloride crystals are collected → the ammonium chloride solid reacts with sulfuric acid to generate ammonium bisulfate solid and hydrogen chloride gas → the hydrogen chloride gas is collected and used for hydrogen chloride gas power wells → the ammonium bisulfate solid is heated to generate sulfuric acid and ammonia gas → the ammonia gas is collected and used for ammonia gas power wells.

[0116] like Figure 1 Combine Figure 2 As shown, a piston-type gas-powered well energy storage and power generation system includes a gas-powered well, a lifting well 3, a lowering well 4, a piston assembly 6, an isolation device 7, a power generation device 5 and a gravity block 10.

[0117] The interior of the gas-powered well has a sliding cavity 19 for the piston assembly 6 to reciprocate. A solution pool 20 is provided at the bottom of the sliding cavity 19. Independent gas injection lines 21, liquid injection lines 22, and liquid outlet lines 23 are provided in the well wall of the gas-powered well. The gas injection line 21 is used to inject a gas that is highly soluble in water into the gas-powered well. The outlet of the gas injection line 21 is located at the bottom of the sliding cavity 19. The outlet of the liquid injection line 22 is located at the bottom of the solution pool 20. The inlet of the liquid outlet line 23 is located at the bottom of the solution pool 20. A first truss beam 24 is provided at the top of the gas-powered well to provide support for the piston assembly 6. A first pulley is provided on the first truss beam 24.

[0118] like Figure 5 As shown, the interior of the lifting shaft 3 is provided with an ascending channel 25 for lifting the gravity block 10 , and a second truss beam 26 is provided at the top of the lifting shaft 3 , and a second pulley is provided on the second truss beam 26 .

[0119] like Figure 6 As shown, the interior of the drop shaft 4 is provided with a descending channel 27 for the gravity block 10 to descend, and a third truss beam 28 is provided on the top of the drop shaft 4, and a third pulley is provided on the third truss beam 28.

[0120] like Figure 2 As shown, the top of the lifting shaft 3 is connected to the top of the falling shaft 4 through a track 29, and the bottom of the lifting shaft 3 is connected to the bottom of the falling shaft 4 through a tunnel 30. The tunnel 30 allows the gravity block 10 to enter the bottom of the ascending channel 25 from the bottom of the descending channel 27.

[0121] like Figure 2 Combine Figure 3a As shown, the piston assembly 6 is located within the sliding chamber 19 of the gas powered shaft. The piston assembly 6 includes a piston block 61, a connecting frame 62, a support roller 63, and a connecting rope 64. The support roller 63 is mounted on the side wall of the piston block 61. The piston block 61 is connected to the inner wall of the sliding chamber 19 via the support roller 63. A sealing structure is provided between the side wall of the piston block 61 and the inner wall of the sliding chamber 19. The sealing structure is located between a pair of support rollers 63. The connecting frame 62 is fixed to the top of the piston block 61. One end of the connecting rope 64 is fixed to the connecting frame 62. The connecting rope 64 has a free end connected to the gravity block 10. The free end of the connecting rope 64 is suspended in the lifting shaft 3 via the guidance of the first pulley and the second pulley.

[0122] like Figure 4 As shown, the isolation device 7 is located between the sliding cavity 19 and the solution pool 20. The isolation device 7 has a telescopic end surface that isolates the gas in the sliding cavity 19 from contacting the liquid in the solution pool 20.

[0123] like Figure 2As shown, the power generation device 5 is installed above the drop shaft 4. A drum is connected to the output shaft of the power generation device 5, and a steel wire rope 31 is wound around the drum. One end of the steel wire rope 31 is fixed to the drum. The steel wire rope 31 has a connecting end connected to the gravity block 10. The connecting end of the steel wire rope 31 is suspended in the drop shaft 4 through the guidance of the third pulley.

[0124] like Figure 3a As shown, the sealing structure includes a first sealing ring 65 and a second sealing ring 66. The first sealing ring 65 and the second sealing ring 66 are both sleeved on the side wall of the piston block 61, and a watertight cavity 67 for accommodating water is formed between the first sealing ring 65 and the second sealing ring 66.

[0125] A water tank 68 for containing water is provided on the piston block 61 , a communication hole is provided on the inner wall of the watertight cavity 67 , and the bottom of the water tank 68 is connected to the watertight cavity 67 through the communication hole.

[0126] like Figure 2 As shown, an air shaft 8 is provided in the middle of the solution pool 20 , the bottom of the air shaft 8 is fixed to the bottom of the solution pool 20 , and a fan is provided inside the air shaft 8 .

[0127] Combine Figure 3b-Figure 3c As shown, a ventilation structure is provided between the air shaft 8 and the solution pool 20 along the radial direction of the air shaft 8. The ventilation structure is located below the isolation device 7. The ventilation structure includes an air barrier layer 91, a ventilation pipe 92 and a sponge layer 93. The air barrier layer 91 is covered on top of the sponge layer 93. The sponge layer 93 is immersed in the water body of the solution pool 20. The ventilation pipe is embedded in the sponge layer 93. The ventilation pipe is connected to the side wall of the air shaft 8, and air holes are provided on the side wall of the ventilation pipe.

[0128] like Figure 3d As shown, the isolation device 7 includes an inflatable rubber bag, which is sleeved on the side wall of the air shaft 8. The inflatable rubber bag moves in a radial direction of the air shaft 8 under the control of the air pump.

[0129] like Figure 1 As shown, the gas-powered wells include an ammonia-powered well 1 and a hydrogen chloride-powered well 2. The ammonia-powered well 1 is correspondingly provided with a first lifting well 3, and the hydrogen chloride-powered well 2 is correspondingly provided with a second lifting well 3. The drop well 4 is located between the first lifting well 3 and the second lifting well 3.

[0130] The top of the first lifting shaft 3 is connected to the top of the lowering shaft 4 via a track 29 , and the bottom of the first lifting shaft 3 is connected to the bottom of the lowering shaft 4 via a tunnel 30 .

[0131] The top of the second lifting shaft 3 is connected to the top of the drop shaft 4 via a track 29 , and the bottom of the second lifting shaft 3 is connected to the bottom of the drop shaft 4 via a tunnel 30 .

[0132] The ammonia gas power well 1 is provided with an ammonia gas storage tank 11 on one side, which is connected with the gas injection pipeline 21 in the ammonia gas power well 1 through a pipeline,

[0133] The hydrogen chloride gas power well 2 is provided with a hydrogen chloride gas storage tank 12 on one side, which is connected with the gas injection pipeline 21 in the hydrogen chloride gas power well 2 through a pipeline.

[0134] As shown in Figure 1 , 2 , 14-16, the ammonia gas power well 1 and the hydrogen chloride gas power well 2 are provided with an ammonium chloride solution storage pool 13, which transports the ammonium chloride solution to the liquid injection pipeline 22 of the ammonia gas power well 1 and the liquid injection pipeline 22 of the hydrogen chloride gas power well 2 respectively through a pipeline.

[0135] The ammonia gas power well 1 is provided with an ammonium chloride solution tank 14 containing ammonia water on one side, which is connected with the liquid outlet pipeline 23 of the ammonia gas power well 1 through a pipeline.

[0136] The hydrogen chloride gas power well 2 is provided with an ammonium chloride solution tank 15 containing hydrochloric acid on one side, which is connected with the liquid outlet pipeline 23 of the hydrogen chloride gas power well 2 through a pipeline.

[0137] The ammonium chloride solution tank 14 containing ammonia water and the ammonium chloride solution tank 15 containing hydrochloric acid are provided with a mixing pool 16 between them, the ammonium chloride solution tank 14 containing ammonia water is connected with the mixing pool 16 through a pipeline, the ammonium chloride solution tank 15 containing hydrochloric acid is connected with the mixing pool 16 through a pipeline, and the mixing pool 16 is connected with the ammonium chloride solution storage pool 13 through a pipeline.

[0138] The ammonia gas power well 1 and the hydrogen chloride gas power well 2 are provided with a reaction tank, which is connected with the ammonia gas storage tank 11 through a pipeline, and is connected with the hydrogen chloride gas storage tank 12 through a pipeline, and the reaction tank, the ammonia gas storage tank 11 and the hydrogen chloride gas storage tank 12 constitute a regeneration system of ammonia gas and hydrogen chloride gas.

[0139] As a preferred, the gas power well, the lifting well 3 and the falling well 4 are embedded below the ground surface.

[0140] As shown in Figure 8 , the gas power well, the lifting well (lifting track) 3 and the falling well (downhill track) 4 are constructed beside the mountain, and the power generation equipment 5 is located on the top of the mountain.

[0141] As shown in Figure 11 , the embodiment of the present application also proposes a piston type gas power well energy storage power generation system, which comprises a gas power well, a piston assembly 6, an isolation device 7 and a power generation equipment 5.

[0142] The axial direction of the gas power well is arranged horizontally. The interior of the gas power well has a sliding cavity 19 for the piston assembly 6 to perform reciprocating motion. A solution pool 20 is provided on one side of the sliding cavity 19. The solution pool 20 and the sliding cavity 19 form an L-shaped structure. A truss column providing traction to the piston assembly 6 is provided on the other side of the gas power well, and a steering pulley is provided on the truss column.

[0143] Independent gas injection pipelines 21, liquid injection pipelines 22 and liquid outlet pipelines 23 are provided in the well wall of the gas-powered well. The gas injection pipeline 21 is used to inject gas that is highly soluble in water into the gas-powered well. The outlet of the gas injection pipeline 21 is located inside the sliding cavity 19, the outlet of the liquid injection pipeline 22 is located at the bottom of the solution pool 20, and the inlet of the liquid outlet pipeline 23 is located at the bottom of the solution pool 20.

[0144] The power generation equipment 5 is installed on the truss column, and a drum is connected to the output shaft of the power generation equipment 5 .

[0145] The piston assembly 6 is located in the sliding chamber 19 of the gas power well. The piston assembly 6 includes a piston block 61, a connecting frame 62, a support roller 63 and a connecting rope 64. The support roller 63 is installed on the side wall of the piston block 61. The piston block 61 is connected to the inner wall of the sliding chamber 19 through the support roller 63. A sealing structure is provided between the side wall of the piston block 61 and the inner wall of the sliding chamber 19. The sealing structure is located between a pair of support rollers 63. The connecting frame 62 is fixed to the top of the piston block 61. One end of the connecting rope 64 is fixed to the connecting frame 62. The other end of the connecting rope 64 is wound on the reel through the guidance of the steering pulley.

[0146] The isolation device 7 is located between the sliding cavity 19 and the solution pool 20 . The isolation device 7 has a telescopic end surface that isolates the gas in the sliding cavity 19 from contacting the liquid in the solution pool 20 .

[0147] like Figures 12a-12c As shown, the present invention also proposes a piston-type gas-powered well energy storage and power generation system, which includes a gas-powered well, a piston assembly 6 , an isolation device 7 , a connecting rod 35 , a crankshaft 36 and a power generation device 5 .

[0148] The interior of the gas-powered well has a sliding cavity 19 for the piston assembly 6 to perform reciprocating motion. A solution pool 20 is provided at the bottom of the sliding cavity 19. Independent gas injection pipelines 21, liquid injection pipelines 22 and liquid outlet pipelines 23 are provided in the wall of the gas-powered well. The gas injection pipeline 21 is used to inject gas that is highly soluble in water into the gas-powered well. The outlet of the gas injection pipeline 21 is located at the bottom of the sliding cavity 19, the outlet of the liquid injection pipeline 22 is located at the bottom of the solution pool 20, and the inlet of the liquid outlet pipeline 23 is located at the bottom of the solution pool 20.

[0149] The piston assembly 6 is located in the sliding cavity 19 of the gas power well. The piston assembly 6 includes a piston block 61, a connecting frame 62, a support roller 63, a connecting rod 35 and a crankshaft 36. The support roller 63 is installed on the side wall of the piston block 61. The piston block 61 is connected to the inner wall of the sliding cavity 19 through the support roller 63. A sealing structure is provided between the side wall of the piston block 61 and the inner wall of the sliding cavity 19. The sealing structure is located between a pair of support rollers 63. The connecting frame 62 is fixed on the top of the piston block 61. The connecting frame 62 is connected to the crankshaft 36 through the connecting rod 35.

[0150] The isolation device 7 is located between the sliding cavity 19 and the solution pool 20 . The isolation device 7 has a telescopic end surface that isolates the gas in the sliding cavity 19 from contacting the liquid in the solution pool 20 .

[0151] The output shaft of the power generation device 5 is connected to one end of the crankshaft 36 .

[0152] like Figure 13 As shown, a plurality of gas power wells are linearly arranged along the axial direction of the crankshaft 36 , and the connecting frame 62 of the piston assembly 6 in each gas power well is connected to the crankshaft 36 through a connecting rod 35 .

[0153] [Underground vertical ammonia power well system]

[0154] The underground vertical ammonia power well system consists of a wellbore, a bottom solution pool, a water surface ventilation and dissolution fan well, a water surface ventilation and dissolution pipe, a water surface isolation rubber bag, a piston, an upper truss column of the power well, a truss beam, a pulley, an electric motor, an ammonia injection pipe, a water inlet pipe, a water outlet pipe, etc.

[0155] (1) Shaft

[0156] The wellbore adopts a circular structure with good stress conditions. The stress-bearing structure is reinforced concrete, and the inner surface is covered with a smooth and flat lining of fiberglass, stainless steel, resin, etc. that is not corroded by ammonium chloride solution, ammonia solution, hydrochloric acid, ammonia gas, and hydrogen chloride gas.

[0157] At the bottom of the wellbore, the lowest point where the piston is designed to operate, a piston limit block is set on the well wall to limit the piston from moving further downward.

[0158] (2) Bottom solution pool

[0159] A certain depth of ammonium chloride solution is set at the bottom of the power well, forming a solution pool at the bottom of the wellbore.

[0160] (3) Water surface ventilation and dissolution fan well

[0161] A fan is installed at the center of the shaft floor to accelerate the dissolution of the gas into the solution. A steel pipe is installed on the shaft floor, extending above the water surface. An electric motor is installed inside the pipe, driving the upper fan to blow the gas into the ventilation pipe at the surface of the solution. A baffle is installed between the motor and the fan, at the bottom of the ventilation pipe, to divert the fan air 90 degrees and enter the ventilation pipes. The motor's cable conduit can be pre-buried in the concrete at the bottom and side walls of the shaft.

[0162] (4) Water surface ventilation and dissolution tube

[0163] With the ventilation and dissolution fan well as the center, a radial ventilation pipe is set every 45 degrees and connected to the fan well. Two annular ventilation pipes are set on the radial pipe, connecting the radial pipes near the end and near the midpoint to promote the circulation of gas in the fan well in the ventilation and dissolution pipes.

[0164] The ventilation tube is wrapped with open-pore sponge foam. Several diffusion holes are opened in the upper and lower parts of the ventilation tube to quickly disperse the gas in the ventilation tube into the open-pore sponge foam wrapped on the ventilation tube. The gas is fully in contact with the water in the sponge foam and dissolved in the solution.

[0165] (5) Water surface isolation rubber bag

[0166] At the water surface, a circular rubber bag is fixed to the outer wall of the fan well. When inflated, the rubber bag can stretch and cover the entire liquid surface, isolating the liquid surface from the ammonia in the power well, preventing the ammonia from contacting the ammonium chloride solution and dissolving in the ammonium chloride solution.

[0167] When ammonia needs to be dissolved in the solution, the gas in the rubber bag is evacuated, and the rubber bag shrinks toward the wall of the fan well to expose the liquid surface.

[0168] (6) Piston

[0169] The piston is a component that moves up and down in the wellbore as the gas pressure in the wellbore changes, similar to the piston in an internal combustion engine.

[0170] To reduce the piston's weight and increase its overall rigidity, the piston uses a light steel flat and vertical truss structure. The piston is circular, and a layer of stainless steel plate is installed at the bottom of the piston flat truss to isolate it from the outside air.

[0171] The contact point between the piston and the wellbore is a rigid side wall of a certain height. Rollers are set at the upper and lower ends of the side wall. The rollers provide support between the piston and the wellbore wall, reducing the friction between the piston and the wellbore wall when the piston moves.

[0172] Two piston gas seal rings are arranged between the upper and lower end roller supports on the piston side wall, similar to the gas ring and oil ring on the piston of an internal combustion engine. A water tank is arranged inside the piston side wall, which contains water, and a water tank water injection hole is arranged at the upper part. When the water tank is short of water, the water tank can be replenished through the water injection hole. A communication pipeline is arranged between the water tank and the two gas rings, so that the two sealing rings are filled with water to form a water ring. During the movement of the piston, the water ring completely isolates the ammonia gas inside the wellbore from the atmosphere outside the wellbore, and can prevent the ammonia gas from leaking to the outside atmosphere. During the movement of the piston, the water ring also plays a lubricating role, reducing the friction between the piston ring and the well wall.

[0173] A steel wire rope connecting buckle is arranged at the top of the vertical truss of the piston, and a steel wire rope is connected above the buckle.

[0174] (7) Upper truss column, truss beam, pulley, and motor of the ammonia gas power well

[0175] A truss column and a truss beam are arranged at the upper part of the ammonia gas power well, and the truss beam is arranged on the truss column.

[0176] A pulley is arranged on the truss beam, and a steel wire rope is wound around the pulley. A small motor is connected to the pulley. During the process of filling ammonia gas into the ammonia gas power well, the pulley is driven to rotate by the motor, and the piston is lifted. The lifting of the piston is synchronized with the process of filling ammonia gas into the ammonia gas power well, until the ammonia gas in the ammonia gas power well is filled with one atmosphere of ammonia gas, and the piston is also lifted to the upper limit position. When the piston falls, the pulley is disconnected from the small motor.

[0177] (8) Ammonia gas injection pipe

[0178] The ammonia gas injection pipe is arranged in the well wall, and the lower end outlet is located between the rubber bag and the piston limiting block. The upper part is connected with the ammonia gas storage tank. A valve is arranged on the pipeline at the ammonia gas storage tank. When ammonia gas is not needed to be injected, the valve is closed.

[0179] (9) Water inlet pipe

[0180] The water inlet pipe is arranged in the well wall, and the lower end inlet is located at the lower end bottom plate of the well wall. The upper end is connected with the "ammonia chloride solution storage pool". A water pump and a valve are arranged at the upper end of the pipeline. When the solution needs to be filled into the ammonia gas power well, the water pump and the valve are opened.

[0181] (10) Water outlet pipe

[0182] The water outlet pipe is arranged in the well wall, and the lower end outlet is located at the lower end bottom plate of the well wall. The upper end is connected with the "ammonia-containing water ammonia chloride solution pool". A water pump and a valve are arranged at the lower end of the pipeline. When the solution in the ammonia gas power well needs to be pumped to the "ammonia-containing water ammonia chloride solution pool", the water pump and the valve are opened.

[0183] [Underground vertical hydrogen chloride gas power well system]

[0184] The structure of the "underground vertical hydrogen chloride gas power well system" is the same as that of the "underground vertical ammonia gas power well system", except that:

[0185] (1) Hydrogen chloride gas is injected into the power well. The hydrogen chloride gas injection pipe is set in the well wall. The lower end outlet is located between the rubber bag and the piston limit block, and the upper part is connected to the hydrogen chloride gas storage tank. A valve is installed on the pipe at the hydrogen chloride gas storage tank. When hydrogen chloride gas is not needed, the valve is closed.

[0186] (2) Water inlet pipe

[0187] The water inlet pipe is set in the well wall, with the lower inlet located at the bottom plate of the well wall and the upper end connected to the "ammonia chloride solution storage tank". At the upper end of the pipe, a water pump and valve are installed. When the solution needs to be added to the power well, the water pump and valve are turned on.

[0188] (3) Water outlet pipe

[0189] The outlet pipe is installed in the well wall, with the lower outlet located at the bottom plate of the well wall and the upper end connected to the "ammonia chloride solution pool containing hydrochloric acid." A water pump and valve are installed at the lower end of the pipe. When the solution in the power well needs to be pumped to the "ammonia chloride solution pool containing hydrochloric acid," the pump and valve are turned on.

[0190] [Gravity Block System]

[0191] The gravity block is the carrier for the power well to lift the gravity block to store energy and to fall to generate electricity.

[0192] The weight block is made of reinforced concrete, or a steel plate with a concrete-filled interior. Two pairs of wheels are set at the bottom of the weight block. The wheels are in the form of train wheels and are fixed to the weight block through brackets.

[0193] A pair of upper and lower positioning rollers are set on each side of the gravity block. During the lifting and falling process of the gravity block, the rollers act as a limiter in the well to prevent the gravity block from swinging in the well and reduce the friction when the rollers contact the well wall.

[0194] A lifting ring is arranged in the middle of the top surface of the gravity block, the bottom of the lifting ring is fixed in the gravity block, and the lifting ring is connected with the steel wire rope.

[0195] [Underground Gravity Block Lifting Well System]

[0196] The gravity block lifting well and the power well are arranged in parallel. The gravity block is placed at the bottom of the lifting well. The top of the power well piston vertical truss is connected to the top lifting ring of the gravity block through a steel wire rope. The steel wire rope passes around the top pulley of the power well and the top pulley of the gravity block lifting well respectively.

[0197] The gravity block lifting shaft is a reinforced concrete structure with an internal shape and size slightly larger than the gravity block, maintaining a slight gap between the shaft wall and the gravity block positioning roller.

[0198] The bottom of the gravity block lifting well and the gravity block falling well are connected by a tunnel.

[0199] A gate-shaped truss is provided at the top of the gravity block lifting shaft, a pulley is provided in the middle of the truss, and the wire rope passes around the pulley and is connected to the pulley on the top truss of the power shaft.

[0200] A movable track is installed at the top of the gravity block hoist shaft. During the hoisting process, the track is located on the side of the gravity block hoist shaft. When the gravity block is lifted above the shaft, the track moves from the side to the top of the shaft, aligning with the wheels at the bottom of the gravity block. At this time, the gravity block drops slightly, and the wheels land on the track. The track then connects to the ground track on the right side of the gravity block hoist shaft. The gravity block moves along the track to the top of the gravity block drop shaft.

[0201] [Underground gravity block drop shaft system]

[0202] The gravity block drop well and the gravity block lifting well are arranged in parallel.

[0203] The gravity block is placed on the top track of the gravity block drop well.

[0204] The gravity block drop well is a reinforced concrete structure with an internal shape and size slightly larger than the gravity block, maintaining a slight gap between the well wall and the gravity block positioning roller.

[0205] The bottom of the gravity block drop well and the gravity block lifting well are connected by a tunnel.

[0206] A gate-shaped truss is provided at the top of the gravity block drop shaft, with a pulley in the middle of the truss. The steel wire rope is connected to the lifting ring at the top of the gravity block, wrapped around the pulley in the middle of the truss column, and the other end is wrapped around the steel wire rope drum of the generator system.

[0207] A movable track is provided on the top of the gravity block drop well. Before the gravity block falls, the track is moved away so that the gravity block can fall along the gravity block drop well.

[0208] The gravity block falls along the drop shaft. During the falling process, the wire rope wound on the wire rope drum of the generator system drives the generator to rotate and generate electricity.

[0209] [Tunnel connection system]

[0210] The gravity block lifting well and the gravity block falling well are connected by a tunnel at the bottom, and a track is set on the tunnel floor. The gravity block at the bottom of the gravity block falling well moves into the gravity block lifting well through the tunnel and the track on the tunnel floor.

[0211] The gravity block is located at the bottom of the gravity block lifting well → the gravity block is lifted to the wellhead → it moves to the wellhead of the gravity block dropping well through the ground track → it drops to the bottom of the well → it moves to the bottom of the gravity block lifting well through the tunnel, completing a cycle.

[0212] [Power Generation System]

[0213] The power generation system is located on the side of the gravity block falling well. During the falling process, the gravity block drives the generator to rotate and generate electricity through the wire rope wound on the wire rope drum of the power generation system.

[0214] The generator system consists of a foundation, a wire rope drum, a speed change gear box, a generator, etc.

[0215] [Railway transportation system]

[0216] The gravity-block lift shaft, gravity-block drop shaft, and gravity-block lift shaft connected in parallel with the ammonia gas-powered shaft are connected above ground by tracks laid on the surface, and underground by tracks laid on the tunnel floor. The tracks at the top of the gravity-block lift shaft and gravity-block drop shaft are retractable and are constructed from train tracks.

[0217] The gravity block passes through the track system to complete the circular transportation process.

[0218] [Ammonia storage system]

[0219] Ammonia storage tanks are installed next to the ammonia wells. These are finished steel tanks lined with fiberglass, stainless steel, or resin, which are resistant to corrosion by ammonia and hydrogen chloride. The ammonia storage tanks can hold 2-3 times the amount of ammonia required for a single cycle of the ammonia wells. The pressure inside the tanks is 1-2 times standard atmospheric pressure, ensuring stable and reliable gas supply to the wells.

[0220] The ammonia and hydrogen chloride gas regeneration system is connected to the ammonia storage tank through a pipeline, and supplies ammonia to the ammonia storage tank intermittently or continuously.

[0221] [Hydrogen chloride gas storage system]

[0222] A hydrogen chloride gas storage tank is installed next to the hydrogen chloride gas well. This tank is a finished steel tank lined with a fiberglass, stainless steel, or resin lining that is resistant to ammonia and hydrogen chloride gas corrosion. The hydrogen chloride gas storage tank can store 2-3 times the amount of hydrogen chloride gas required for a single cycle of the hydrogen chloride gas well. The pressure inside the tank is 1-2 times standard atmospheric pressure, ensuring stable and reliable gas supply to the hydrogen chloride gas well.

[0223] The ammonia and hydrogen chloride gas regeneration system is connected to the hydrogen chloride gas storage tank through a pipeline, and hydrogen chloride gas is intermittently or continuously supplied to the hydrogen chloride gas storage tank.

[0224] [Ammonia chloride solution pool system containing ammonia water]

[0225] The solution tank adopts a circular structure with good stress conditions. The stress-bearing structure is reinforced concrete, and the inner surface is lined with glass fiber reinforced plastics, stainless steel, resin, etc. that are not corroded by ammonium chloride solution, ammonia solution, hydrochloric acid, ammonia gas, and hydrogen chloride gas.

[0226] The solution tank is a sealed structure to prevent the leakage of volatile gases.

[0227] The inlet of the solution pool is connected to the outlet pipe of the ammonia power well, and the ammonia chloride solution rich in ammonia water drawn from the solution pool at the bottom of the ammonia power well is injected into the solution pool.

[0228] The outlet of the solution pool is a pipeline connecting the "ammonia chloride solution pool containing ammonia water" and the "mixed pool of ammonia water solution, ammonia water solution and hydrogen chloride solution (ammonia chloride solution pool, ammonia chloride crystallization precipitation pool)".

[0229] [Ammonia chloride solution pool system containing hydrochloric acid]

[0230] The solution tank adopts a circular structure with good stress conditions. The stress-bearing structure is reinforced concrete, and the inner surface is lined with glass fiber reinforced plastics, stainless steel, resin, etc. that are not corroded by ammonium chloride solution, ammonia solution, hydrochloric acid, ammonia gas, and hydrogen chloride gas.

[0231] The solution tank is a sealed structure to prevent the leakage of volatile gases.

[0232] The inlet of the solution pool is connected to the outlet pipe of the hydrogen chloride gas-powered well, and the ammonium chloride solution rich in hydrochloric acid drawn from the solution pool at the bottom of the hydrogen chloride gas-powered well is injected into the solution pool.

[0233] The outlet of the solution pool is a pipeline connecting the "ammonia chloride solution pool containing hydrochloric acid" and the "mixed pool of ammonia-containing aqueous solution, ammonia-containing aqueous solution and hydrogen chloride solution (ammonia chloride solution pool, ammonia chloride crystallization precipitation pool)".

[0234] [Ammonia solution and hydrogen chloride solution mixing tank (ammonia chloride solution tank, ammonia chloride crystallization precipitation tank) system]

[0235] The solution mixing tank is funnel-shaped, with a load-bearing structure of reinforced concrete and an inner surface lined with glass fiber reinforced plastics, stainless steel, resin, etc. that are not corroded by ammonium chloride solution, ammonia solution, hydrochloric acid, ammonia gas, and hydrogen chloride gas.

[0236] The solution in the "ammonia chloride solution pool containing ammonia water" on the left and the solution in the "ammonia chloride solution pool containing hydrochloric acid" on the right are respectively introduced into the solution mixing pool through pipes, and are introduced in a ratio in which ammonia water and hydrochloric acid can react completely. The two react chemically in the mixing pool to generate a supersaturated ammonium chloride solution, and the ammonium chloride crystallizes in the pool and precipitates to the bottom of the funnel.

[0237] The bottom of the hopper has a hinged door that opens upwards and is normally open. When the precipitated ammonium chloride fills the centrifuge, the hinged door closes. The motor's gear engages with the outer gear of the centrifuge, driving the centrifuge to rotate. This throws the ammonium chloride solution into the ammonium chloride solution recovery drum outside the centrifuge. The dehydrated ammonium chloride solid remains in the centrifuge. When the dehydration process is complete, the hinged door at the bottom of the centrifuge opens downwards, and the ammonium chloride solid in the centrifuge is unloaded and placed in the ammonium chloride solid transport vehicle below.

[0238] During the dehydration process, the ammonium chloride solution in the ammonium chloride solution recovery cylinder is recovered to the upper solution mixing tank through the pipeline and the pipeline pump arranged on the pipeline.

[0239] [Ammonium chloride solution storage tank system]

[0240] The ammonium chloride solution storage tank system adopts a circular structure with good stress conditions. The stress-bearing structure is reinforced concrete, and the inner surface is covered with a lining made of fiberglass, stainless steel, resin, etc. that is not corroded by ammonium chloride solution, ammonia solution, hydrochloric acid, ammonia gas, and hydrogen chloride gas.

[0241] After the ammonia chloride crystals in the "mixed tank of ammonia-containing aqueous solution, ammonia-containing aqueous solution and hydrogen chloride solution (ammonia chloride solution tank, ammonia chloride crystallization precipitation tank)" are precipitated and filtered, the pure saturated ammonia chloride solution is injected into the "ammonia chloride solution storage tank" through a pipeline.

[0242] The outlet pipe of the "ammonia chloride solution storage tank" is connected to the inlet pipes of the ammonia power well and the hydrogen chloride power well.

[0243] [Mountainside ammonia power well system, mountainside hydrogen chloride power well system]

[0244] In mountainous terrain, the ammonia (hydrogen chloride) power well system can be built close to the hillside to reduce construction costs.

[0245] The overall structure of the mountainside ammonia (hydrogen chloride) power well system is basically the same as that of the underground vertical ammonia (hydrogen chloride) power well system. The difference is that the bottom solution pool is arranged horizontally, and the power well is arranged at an angle along the mountainside, with an angle between the two that is the same as the angle of the mountain slope.

[0246] The "ammonia storage tank", "ammonia chloride solution pool containing ammonia water", "mixed pool of ammonia water solution, ammonia water solution and hydrogen chloride solution (ammonia chloride solution pool, ammonia chloride crystallization precipitation pool)", "ammonia chloride solution pool containing hydrochloric acid" and "ammonia chloride solution storage pool" that are matched with the ammonia (hydrogen chloride) power well are all arranged at the flat area at the foot of the slope.

[0247] [Mountainside Gravity Block Lift Track System]

[0248] The mountainside gravity block lifting system is to lift the gravity block from the foot of the slope to the top of the slope along the slope.

[0249] On the slope, a track is set along the slope, and a gate-shaped truss is set at the top of the slope above the track. A pulley is provided on the top of the truss. The steel wire rope connected to the power well piston is wound around the pulley and connected to the lifting ring on the top of the gravity block.

[0250] As the power well piston moves downward, the gravity block is gradually lifted to the top of the slope along the track laid at the foot of the slope.

[0251] [Mountainside gravity block descending track system]

[0252] The mountainside gravity block sliding track system is to slide the gravity block down from the top of the slope to the foot of the slope.

[0253] On the slope, a track is set along the slope, and a gate-shaped truss is set at the top of the slope above the track. A pulley is provided on the top of the truss. One end of the wire rope is connected to the lifting ring on the top of the gravity block and is wound around the pulley on the top of the gate-shaped truss. The other end of the wire rope passes through the pulley on the top of the gate-shaped truss and is wound around the wire rope drum of the generator system.

[0254] As the gravity block slides down the slope track, the wire rope drives the generator wire rope drum and the generator to rotate, completing the power generation process.

[0255] [Mountainside slope platform track system]

[0256] The slope foot platform track is a track that connects the gravity block lifting track and the gravity block descending track at the slope foot. It is located at the slope foot platform and is perpendicular to the gravity block lifting track and the gravity block descending track.

[0257] A track rotation system that can rotate 90 degrees is set at the intersection of the slope foot platform track, the gravity block lifting track and the gravity block descending track. When the gravity block is transported to the intersection, the track rotation system will rotate the slope foot track 90 degrees and connect it with the gravity block lifting track and the gravity block descending track.

[0258] [Mountainside sloped platform track system]

[0259] The slope top platform track is a track connecting the gravity block lifting track and the gravity block descending track at the slope top. It is located at the slope top platform and is perpendicular to the gravity block lifting track and the gravity block descending track.

[0260] A track rotation system that can rotate 90 degrees is set at the intersection of the slope top platform track, the gravity block lifting track and the gravity block descending track. When the gravity block is transported to the intersection, the track rotation system will rotate the slope top track 90 degrees and connect it with the gravity block lifting track and the gravity block descending track.

[0261] [Horizontal ammonia (hydrogen chloride) power well system]

[0262] Ammonia (hydrogen chloride) power wells can be arranged horizontally, which can significantly reduce construction costs.

[0263] The overall structure of the horizontal ammonia (hydrogen chloride) power well system is basically the same as that of the underground vertical ammonia (hydrogen chloride) power well system. The difference is that the bottom solution pool is arranged perpendicular to the ground, and the power well is arranged parallel to the ground, with a 90-degree angle between the two.

[0264] The "ammonia storage tank", "ammonia chloride solution pool containing ammonia water", "mixed pool of ammonia water and hydrogen chloride solution (ammonia chloride solution pool, ammonia chloride crystallization precipitation pool)", "ammonia chloride solution pool containing hydrochloric acid", and "ammonia chloride solution storage pool" that are matched with the ammonia (hydrogen chloride) power well are all arranged on the ground.

[0265] [Power well system with crankshaft]

[0266] The power well system with crankshaft consists of a wellbore, a bottom solution pool, a water surface ventilation and dissolution fan well, a water surface ventilation and dissolution pipe, a water surface isolation rubber bag, a piston, a connecting rod, a crankshaft, an ammonia injection pipe, a water inlet pipe, a water outlet pipe, etc.

[0267] The wellbore, bottom solution pool, water surface ventilation and dissolution-aiding fan well, water surface ventilation and dissolution-aiding pipe, water surface isolation rubber bag, piston, ammonia injection pipe, water inlet pipe and water outlet pipe are the same as or similar to the vertical ammonia (hydrogen chloride) power well.

[0268] (1) Connecting rod

[0269] One end of the connecting rod is connected to the top bearing of the piston vertical truss, and the other end is connected to the crankshaft.

[0270] (2) Crankshaft

[0271] The crankshaft is connected to the piston connecting rod. As the piston drives the connecting rod to move, the crankshaft moves in a circular motion along the fixed axis, and then converts the power generated by the up and down movement of the piston into torque through the crankshaft and transmits it to the outside.

[0272] (3) Power well connection

[0273] Multiple power wells can be connected in parallel and connected to the same crankshaft, similar to a car engine. For example, if four power wells are connected in parallel, it will be similar to a car's inline 4-cylinder engine.

[0274] [Ammonia and hydrogen chloride regeneration system]

[0275] The ammonia and hydrogen chloride regeneration system consists of a reaction tank, an ammonia storage tank, a hydrogen chloride storage tank, etc.

[0276] The ammonium chloride solid collected in the "ammonia chloride crystallization sedimentation tank" is transported to the reaction tank to produce a chemical reaction to generate ammonia gas and hydrogen chloride gas.

[0277] Ammonium chloride reacts with sulfuric acid in a reaction tank to produce ammonium bisulfate and hydrogen chloride gas. This hydrogen chloride gas is pumped through a pipeline to a hydrogen chloride storage tank. When the reaction between the ammonium chloride and sulfuric acid in the reaction tank is complete, the resulting hydrogen chloride gas is also pumped to the hydrogen chloride storage tank. The ammonium bisulfate produced by the reaction of ammonium chloride and sulfuric acid in the reaction tank is heated, decomposing it into sulfuric acid and ammonia gas. The resulting ammonia gas is pumped through a pipeline to an ammonia storage tank. When the ammonium bisulfate is completely decomposed, the resulting ammonia gas is also pumped to the ammonia storage tank. At this point, the reaction tank returns to its initial state of containing only sulfuric acid, completing a complete cycle.

[0278] (1) Reactor

[0279] The reaction tank is a round steel tank lined with fiberglass, stainless steel, resin and other materials that are not corroded by ammonia, hydrogen chloride and sulfuric acid.

[0280] The reaction tank is filled with sulfuric acid.

[0281] Electromagnetic heating is installed at the bottom of the reaction tank and in the side wall below the sulfuric acid liquid level, which can heat the sulfuric acid in the reaction tank and the ammonium bisulfate generated by the reaction.

[0282] At the center of the middle circle of the reaction tank is a blade rotating column. The bottom of the rotating column is sleeved on a bearing protruding from the bottom of the reaction tank. At the center of the top circle of the reaction tank is a bearing sleeved on the outside of the rotating column. The rotating column is fixed and rotated by the bearing.

[0283] The lower portion of the rotating column, below the sulfuric acid liquid level, is equipped with stirring blades. These blades are arranged in a circle and in layers along the height of the rotating column. Resistance wires are built into the stirring blades, which heat the sulfuric acid and ammonium bisulfate in the reaction tank.

[0284] A gear plate is provided on the top of the rotating column. The gear plate and the rotating column are driven by a motor to rotate slowly. The motor is fixed on the top of the reaction tank.

[0285] A pipeline leading to the ammonia storage tank and the hydrogen chloride storage tank is set on the top of the reaction tank. An air pump is installed on the pipeline to pump the ammonia and hydrogen chloride generated in the reaction tank into the ammonia storage tank and the hydrogen chloride storage tank.

[0286] Two sets of ammonium chloride delivery pipes are set on the top of the reaction tank. The delivery pipes extend into the reaction tank. At the outlet of the delivery pipes, a bulking machine is set. It is driven by a motor to evenly spread the solid ammonium chloride into the reaction tank through the bulking machine and the delivery pipes.

[0287] The ammonium chloride feed pipe is connected to the ammonium chloride solid collection system of the ammonium chloride crystallization precipitation tank, and the connection system is airtight.

[0288] In order to improve the gas supply guarantee rate, the reaction tank can also be connected to the liquid ammonia storage tank, and the ammonia gas generated by the reaction can be transported to the liquid ammonia storage tank through a high-pressure air pump; the reaction tank can also be connected to the liquid hydrogen chloride storage tank, and the hydrogen chloride gas generated by the reaction can be transported to the liquid hydrogen chloride storage tank through a high-pressure air pump; when the reaction tank is in special working conditions such as maintenance, the liquid ammonia storage tank can supply gas to the ammonia storage tank, and the liquid hydrogen chloride storage tank can supply gas to the hydrogen chloride storage tank.

[0289] To improve the system's reliability, two reactors are installed and run simultaneously. When reactor #1 is producing ammonia, reactor #2 is producing hydrogen chloride. When reactor #1 is producing hydrogen chloride, reactor #2 is producing ammonia.

[0290] (2) Ammonia gas storage tanks and hydrogen chloride gas storage tanks are as mentioned above.

[0291] (3) Liquid ammonia storage tank

[0292] It is a cylindrical steel tank lined with fiberglass, stainless steel, resin and other materials that are not corroded by ammonia and hydrogen chloride gas.

[0293] The liquid ammonia storage tank is filled with liquid ammonia with a pressure of more than 1.1MPa. When kept at room temperature, the ammonia in the tank is in liquid state.

[0294] When the liquid ammonia reserve tank is needed to supply gas to the ammonia storage tank, open the valve on the connecting pipe at the top of the tank to complete the gas supply process.

[0295] When the storage tank needs to be injected with ammonia, the ammonia produced in the reaction tank is pumped into the storage tank by a high-pressure air pump and continuously pressurized to liquefy the ammonia in the storage tank.

[0296] (3) Liquid hydrogen chloride storage tank

[0297] It is a cylindrical steel tank lined with fiberglass, stainless steel, resin and other materials that are not corroded by ammonia and hydrogen chloride gas.

[0298] The liquid hydrogen chloride storage tank is filled with liquid hydrogen chloride with a pressure of more than 4.2 MPa. When kept at room temperature, the hydrogen chloride in the tank is in liquid state.

[0299] When the liquid hydrogen chloride reserve tank is required to supply gas to the hydrogen chloride gas storage tank, the valve on the connecting pipe at the top of the tank is opened to complete the gas supply process.

[0300] When the storage tank needs to be injected with hydrogen chloride gas, the high-pressure air pump draws the hydrogen chloride gas produced in the reaction tank into the storage tank and continuously pressurizes it to liquefy the hydrogen chloride gas in the storage tank.

[0301] Example 1

[0302] Example 1 is a vertical power system and power generation system that is not restricted by terrain conditions.

[0303] This vertical power system and power generation system can be underground, above-ground, or a combination of underground and above-ground types.

[0304] Example 1 is described by taking the underground type as an example.

[0305] Example 1 consists of an ammonia storage tank, an ammonia power well, a hydrogen chloride gas storage tank, a hydrogen chloride power well, a gravity block lifting well, a gravity block falling well, a generator system, an ammonia chloride solution pool containing ammonia water, an ammonia chloride solution pool of ammoniacal hydrochloric acid, an ammonia chloride crystallization precipitation tank, an ammonia chloride solution storage tank, a reaction tank, etc.

[0306] The ammonia storage tank is 20 meters in diameter and 20 meters high, with an internal pressure of 1 to 2 times atmospheric pressure (100 to 200 kPa). It can store 6,280 to 12,560 cubic meters of ammonia at standard atmospheric pressure, a storage capacity 1.6 to 3.2 times the volume of the ammonia power well. One end of the ammonia storage tank is connected to the ammonia power well via a pipeline, supplying ammonia to the well. The other end is connected to the No. 1 and No. 2 reaction tanks via pipelines, supplying ammonia to the ammonia storage tank.

[0307] The hydrogen chloride gas storage tank is 20 meters in diameter and 20 meters high, with an internal pressure of 1 to 2 times atmospheric pressure. It can store 6,280 to 12,560 cubic meters of hydrogen chloride gas at standard atmospheric pressure, a storage capacity 1.6 to 3.2 times the volume of the hydrogen chloride gas well. One end of the hydrogen chloride gas storage tank is connected to the hydrogen chloride gas well via a pipeline, supplying hydrogen chloride to the well. The other end is connected to the No. 1 and No. 2 reaction tanks via pipelines, supplying hydrogen chloride to the hydrogen chloride gas storage tank.

[0308] The ammonia well has an inner diameter of 10 meters, and the ammonium chloride solution at the bottom is 10 meters deep. The ammonium chloride solution, serving as the mother liquor for dissolving ammonia, has a volume sufficient to dissolve the total amount of ammonia produced during a single day's operation. The piston has a stroke of 50 meters and a diameter of 10 meters, resulting in a well volume of 3925 cubic meters within the piston's stroke range. When the well is in a vacuum state, the external atmospheric pressure acting on the piston is 809 tons. Considering operational efficiency and the fact that a complete vacuum cannot be achieved within the well during operation, the vacuum level in the well is assumed to be 70%. The resulting pressure difference between the internal and external gases acting on the piston is 809 × 70% = 566 tons, which serves as the standard value for the weight of the gravity block used to lift the well, resulting in a weight of 566 tons (for ease of description, the deadweight of the piston system is neglected).

[0309] The parameters of hydrogen chloride power wells are the same as those of ammonia power wells.

[0310] The gravity block is made of reinforced concrete block, length × width × height = 5.5 × 5.5 × 7.5m, and the gravity block weighs 566t.

[0311] The gravity block lifting shaft is a rectangular shaft with internal dimensions of 6.0×6.0m and a depth of 57.5m.

[0312] The gravity block drop well is a rectangular well with internal dimensions of 6.0×6.0m and a depth of 57.5m.

[0313] The ammonia chloride solution pool containing ammonia water has a diameter of 14m and a depth of 11m.

[0314] The diameter of the ammonium chloride solution pool containing hydrochloric acid is 14m and the depth is 11m.

[0315] The mixing tank for ammonia-containing aqueous solution, ammonia-containing aqueous solution and hydrogen chloride solution (ammonia chloride solution tank, ammonia chloride crystallization sedimentation tank) has a diameter of 20m, a side wall tank depth of 11m, a funnel at the bottom, and a centrifuge cylinder for recovering ammonia chloride solid at the bottom of the funnel. The diameter of the centrifuge cylinder is 4m.

[0316] The ammonia chloride solution storage tank has a diameter of 14m and a depth of 11m.

[0317] System initial state: the power well is filled with ammonium chloride solution at the designed water level, the piston is at the upper limit of the power well, the inflatable rubber bag in the power well is inflated and stretched, the power well is filled with ammonia gas at 1 standard atmospheric pressure, the ammonium chloride solution storage tank is full, and the gravity block is at the bottom of the gravity block lifting well.

[0318] The air in the inflatable rubber bag is deflated, and the rubber bag shrinks from the state of covering the water surface to the wall of the fan well.

[0319] The solution surface comes into contact with the ammonia gas in the well, causing it to dissolve in the ammonium chloride solution. As the ammonia dissolves in the ammonium chloride solution, the pressure in the well decreases, causing the piston to begin moving downward. This process, via a wire rope and pulley system, lifts the weight block in the gravity hoist shaft. When the piston reaches the lower stop at the power shaft, the weight block is lifted to the wellhead of the gravity hoist shaft. The movable track at the wellhead of the gravity hoist shaft is moved to the bottom of the weight block, aligning with the weight block's wheels. The weight block travels to the wellhead track and the track between the gravity hoist shaft and the gravity drop shaft. The track at the wellhead of the gravity drop shaft is removed, and the weight block descends along the gravity drop shaft. During its descent, the wire rope and pulley system drives the generator, generating electricity. After reaching the well bottom, the weight block moves along the tunnel to the bottom of the gravity hoist shaft, where it returns to its starting position and begins the next cycle.

[0320] As the gravity block descends to generate electricity, the ammonia well's inflatable rubber bag inflates and expands, isolating the liquid surface from the gas inside the well. The electric motor on the wellhead's truss pulley lifts the piston upward. As the piston moves upward, the ammonia well is inflated from the ammonia storage tank. When the piston reaches the top, the ammonia pressure inside the well reaches 1 standard atmosphere. This marks the start of the next cycle.

[0321] The ammonia-powered well completes one cycle every 12 minutes, 5 cycles per hour, and 110 cycles per day, assuming 22 working hours.

[0322] During operation, a dissolution-aiding fan can be used to further accelerate the dissolution rate of ammonia and increase the number of cycles.

[0323] The circulation cycle of the ammonium chloride solution in the ammonia-powered well is one day, and the solution replacement time is 2 hours.

[0324] The ammonia dissolution rate in the ammonia-powered well slows down as the ammonia concentration in the solution increases. If its natural dissolution rate does not meet the requirements, the surface ventilation and dissolution-aiding fan can be started to blow ammonia into the surface ventilation and dissolution-aiding pipe to accelerate the dissolution process of ammonia and shorten the circulation time.

[0325] The operation process of the hydrogen chloride power well is the same as that of the ammonia power well. The difference is that one uses ammonia gas dissolved in ammonium chloride solution to form a vacuum to generate power, and the other uses hydrogen chloride gas dissolved in ammonium chloride solution to form a vacuum to generate power.

[0326] An ammonia power well and a hydrogen chloride power well simultaneously feed a gravity block drop well power generation system. By adjusting the speed of the gravity block drop, the system is able to operate continuously, matching the power well cycle period with the power generation rate.

[0327] In order to improve the guarantee rate of system operation, a number of gravity blocks can be stored on the ground.

[0328] The solution replacement time of the ammonia power well is staggered with that of the hydrogen chloride power well, and the solution replacement time is selected during the low electricity consumption period, so as to ensure uninterrupted power generation during system operation.

[0329] Or multiple such systems can be connected in parallel, and the time for changing the solution in each system can be staggered to achieve uninterrupted power generation.

[0330] When replacing the solution in the ammonia-powered well, the solution is pumped into the ammonium chloride solution pool containing ammonia water, and then the saturated ammonium chloride solution pre-stored in the ammonium chloride solution storage pool is injected into the ammonia-powered well to complete the solution replacement.

[0331] When replacing the solution in the hydrogen chloride gas-powered well, the solution is pumped into the ammonium chloride solution pool containing hydrochloric acid, and then the saturated ammonium chloride solution pre-stored in the ammonium chloride solution storage pool is injected into the hydrogen chloride gas-powered well to complete the solution replacement.

[0332] The pumping process of the ammonia gas-powered well can be carried out simultaneously with the water injection process of the hydrogen chloride gas-powered well, and vice versa, so that the energy generated by the water injection can be used for pumping, saving the energy consumption of solution replacement.

[0333] The ammonia content in the ammonia chloride solution tank containing ammonia water is measured; the hydrochloric acid content in the hydrochloric acid solution tank containing ammonia chloride is measured. The solutions from each tank are then injected into a "mixed tank containing ammonia water, ammonia water, and hydrogen chloride solution (ammonia chloride solution tank, ammonium chloride crystallization and precipitation tank)" in a ratio sufficient for complete reaction. Within this tank, the ammonia in the mixed solution reacts with the hydrogen chloride to produce ammonium chloride, causing the ammonium chloride solution to supersaturate. This causes the ammonium chloride to crystallize and precipitate in the tank. The solid ammonium chloride is separated and collected by a centrifuge at the bottom of the tank. This system completes a cycle of one day, the same as the solution replacement cycle for the power well.

[0334] The collected ammonia chloride solid is transported to the 1# and 2# reaction tanks, and the production of ammonia and hydrogen chloride is completed in the ammonia hydrogen chloride regeneration system. It is then transported to the ammonia (hydrogen chloride) storage tank to complete the recycling process of ammonia and hydrogen chloride.

[0335] The reaction tank's reaction cycle lasts one day, the same as the ammonium chloride crystallization and sedimentation tank's operating cycle. This means that within a single day, the ammonium chloride crystallization and sedimentation tank processes all the solution replacements from the ammonia and hydrogen chloride wells, and continuously delivers the generated and collected ammonium chloride solids to the ammonia and hydrogen chloride regeneration systems.

[0336] The reactors in the ammonia and hydrogen chloride regeneration system generate ammonia for 11 hours and hydrogen chloride for 11 hours, for a total of 22 hours, coinciding with the operating hours of the power well system. Reactors 1# and 2# operate in staggered cycles: while reactor 1# is generating ammonia, reactor 2# is generating hydrogen chloride; while reactor 2# is generating ammonia, reactor 1# is generating hydrogen chloride. This synchronizes the operation and gas supply of the ammonia and hydrogen chloride regeneration system with the power well system, improving gas supply reliability and reducing energy consumption during gas storage.

[0337] The mass of the gravity block lifted by the power well in a single lift is 566 tons, the lifting height is 50 meters, and the gravitational potential energy stored in a single lift is 277,332,650 joules. With a generator efficiency of 95%, the gravitational potential energy stored in a single lift converts to 73 kWh of electricity. A single power well cycles 110 times a day, generating 8,050 kWh of electricity per day. In the above system, which includes one ammonia power well and one hydrogen chloride power well, the system generates 16,100 kWh of electricity per day, totaling 5.88 million kWh of electricity per year.

[0338] During operation, the energy required for replacing the solution in the power well, transporting gas between the reaction tank and the gas storage tank, and between the gas storage tank and the power well is almost negligible. The largest energy requirement is the heat required to heat the ammonium bisulfate in the reaction tank to approximately 200°C during ammonia production, which decomposes the ammonium bisulfate.

[0339] Example 2

[0340] In embodiment 2, when there are mountainous terrain conditions, relying on the mountain slope conditions, the investment in the power system and power generation system can be greatly reduced.

[0341] Example 2 is described using a hillside with a height difference of 100m and a slope of 1:1 as an example. In actual projects, the slope track system can be arranged along the slope according to the slope gradient, and is not limited to a single slope.

[0342] Example 2 consists of an ammonia storage tank, an ammonia power well, a hydrogen chloride gas storage tank, a hydrogen chloride power well, a gravity block lifting track, a gravity block falling track, a generator system, an ammonia chloride solution pool containing ammonia water, an ammonia chloride solution pool of ammoniacal hydrochloric acid, an ammonia chloride crystallization precipitation tank, an ammonia chloride solution storage tank, a reaction tank, etc.

[0343] The ammonia storage tank has a diameter of 34m and a height of 20m. The internal pressure is 1 to 2 times the atmospheric pressure (100 to 200Kpa). It can store 18150 to 36298m of ammonia at standard atmospheric pressure. 3The ammonia storage capacity is 1.6 to 3.2 times the volume of the ammonia power well. One end of the ammonia storage tank is connected to the ammonia power well via a pipeline, supplying ammonia to the well. The other end is connected to the 1# and 2# reaction tanks via pipelines, supplying ammonia to the ammonia storage tank.

[0344] The hydrogen chloride gas storage tank has a diameter of 34m and a height of 20m. The internal pressure is 1 to 2 times the atmospheric pressure (100 to 200Kpa). It can store 18150 to 36298m of hydrogen chloride gas under standard atmospheric pressure. 3 The storage capacity of hydrogen chloride gas is 1.6 to 3.2 times the volume of the hydrogen chloride gas power well. One end of the hydrogen chloride gas storage tank is connected to the hydrogen chloride gas power well via a pipeline, supplying hydrogen chloride gas to the power well. The other end is connected to the 1# and 2# reaction tanks via pipelines, which supply hydrogen chloride gas to the hydrogen chloride gas storage tank.

[0345] The inner diameter of the ammonia power well is 10m, and the bottom ammonium chloride solution is 30m deep. The ammonium chloride solution is used as the mother liquor for dissolving ammonia, and its volume can meet the total amount of ammonia required for dissolving the power well during one day's operation. The piston stroke is 141m, the piston diameter is 10m, and the power well volume within the piston stroke range is 11135m 3 When the power well is in a vacuum state, the external atmospheric pressure acting on the piston is 809t. Considering the operating efficiency and the fact that the power well cannot reach a complete vacuum state during operation, the vacuum degree in the power well is calculated as 70%. The internal and external gas pressure difference acting on the piston is 809×70%=566t, which is used as the standard value of the power well lifting capacity (for ease of description, the deadweight of the piston system is ignored). The slope of the gravity block lifting track is 1:1, so the weight of the gravity block is: 566 / sin(45°)=801, that is, the weight of the gravity block is 801t.

[0346] The parameters of hydrogen chloride power wells are the same as those of ammonia power wells.

[0347] The gravity block is made of reinforced concrete block, length × width × height = 6.84 × 6.84 × 6.84m, and the weight of the gravity block is 801t.

[0348] The gravity block lifting track, the gravity block descending track, the slope foot ground track and the slope top ground track adopt train tracks, and two pairs of wheels corresponding to the tracks are provided at the lower part of the gravity block, which adopt train wheels.

[0349] The ammonia chloride solution pool containing ammonia water has a diameter of 17m and a depth of 20m.

[0350] The diameter of the ammonium chloride solution pool containing hydrochloric acid is 17m and the depth is 20m.

[0351] The ammonia-containing aqueous solution mixing pool (ammonium chloride solution pool, ammonium chloride crystallization precipitation pool) has a diameter of 20 m, the side wall has a depth of 20 m, the bottom is a funnel, and the bottom of the funnel is a centrifugal cylinder for recovering ammonium chloride solids, and the centrifugal cylinder has a diameter of 4 m.

[0352] The ammonium chloride solution storage pool has a diameter of 17 m and a depth of 20 m.

[0353] The system starts in the following state: the ammonia gas power well is filled with ammonium chloride solution to the designed water level, the piston is at the highest limit in the ammonia gas power well, the inflatable rubber bag in the ammonia gas power well is in an inflated and stretched state, the ammonia gas power well is filled with 1 atm of ammonia gas, the ammonium chloride solution storage pool is full, and the gravity block is at the bottom of the gravity block lifting track.

[0354] The inflatable rubber bag is deflated, and the rubber bag is shrunk from the state of being spread on the water surface to the state of being close to the well wall of the fan well.

[0355] The solution surface is in contact with the ammonia gas in the well, the ammonia gas is dissolved in the ammonium chloride solution, and as the ammonia gas is dissolved in the ammonium chloride solution, the gas pressure in the well decreases, the piston starts to move downward, the gravity block is lifted along the gravity block lifting track from the slope bottom to the slope top through the steel wire rope and pulley system, and when the piston moves to the lower limit block in the ammonia gas power well, the gravity block is lifted to the slope top. After the gravity block reaches the slope top platform, the track where the gravity block is located is rotated by 90 degrees to be connected with the ground track at the slope top. The gravity block moves along the ground track at the slope top to the slope top of the gravity block descending track, the track where the gravity block is located is rotated by 90 degrees to be connected with the gravity block descending track, and the gravity block descends along the gravity block descending track. In the descending process, the steel wire rope and pulley system drive the generator to generate electricity. When the gravity block descends to the slope foot platform, the track where the gravity block is located is rotated by 90 degrees to be connected with the ground track at the slope foot, moves to the gravity block lifting track along the ground track at the slope foot, and the track where the gravity block is located is rotated by 90 degrees to be connected with the gravity block lifting track. The next cycle starts.

[0356] In the process of generating electricity by the gravity block descending, the inflatable rubber bag in the ammonia gas power well is inflated and is in a stretched state to isolate the liquid surface from the gas in the ammonia gas power well. The piston is lifted upward by the motor of the truss pulley at the well mouth, and in the process of the piston moving upward, the ammonia gas storage tank is used to inflate the ammonia gas power well. When the piston moves to the top, the ammonia gas in the ammonia gas power well is 1 atm. At this time, the ammonia gas power well is in the initial state, and the next cycle starts.

[0357] The ammonia gas power well completes one cycle every 12 minutes, completes 5 cycles per hour, and completes 110 cycles per day according to 22 hours of work.

[0358] In the process of operation, the dissolution rate of ammonia gas can be further accelerated by the dissolution-assisting fan, and the number of cycles can be increased.

[0359] The ammonia gas power well circulates the solution of ammonium chloride once a day, and the solution replacement time is 2 hours.

[0360] The ammonia gas power well's ammonia gas dissolution rate slows down with the increase of ammonia concentration in the solution. If the natural dissolution rate cannot meet the requirement, the water surface aeration dissolving fan can be started to blow ammonia gas into the water surface aeration dissolving pipe, accelerate the ammonia gas dissolution process, and shorten the circulation time.

[0361] The operation process of the hydrogen chloride gas power well is the same as that of the ammonia gas power well, except that one uses ammonia gas to dissolve in the solution of ammonium chloride to form a vacuum to generate power, and the other uses hydrogen chloride gas to dissolve in the solution of ammonium chloride to form a vacuum to generate power.

[0362] One ammonia gas power well and one hydrogen chloride gas power well supply a gravity block sliding track power generation system at the same time. By adjusting the speed of the gravity block falling, the continuous operation of the system is completed, and the power well circulation period is matched with the power generation rate.

[0363] In order to improve the guarantee rate of system operation, a number of gravity blocks can be reserved at the top of the slope.

[0364] The solution replacement time of the ammonia gas power well is staggered with that of the hydrogen chloride gas power well, and the solution replacement time is selected at the low valley period of electricity consumption, so that the uninterrupted power generation in the system operation process can be met.

[0365] Or a plurality of such systems are connected in parallel, and the solution replacement time of each system is staggered to realize uninterrupted power generation.

[0366] When the ammonia gas power well replaces the solution, the solution is pumped into the ammonium chloride solution pool containing ammonia water, and then the saturated ammonium chloride solution stored in the ammonium chloride solution storage pool is injected into the ammonia gas power well to complete the solution replacement.

[0367] When the hydrogen chloride gas power well replaces the solution, the solution is pumped into the ammonium chloride solution pool containing hydrochloric acid, and then the saturated ammonium chloride solution stored in the ammonium chloride solution storage pool is injected into the hydrogen chloride gas power well to complete the solution replacement.

[0368] The water pumping process of the ammonia gas power well can be synchronized with the water injection process of the hydrogen chloride gas power well, and vice versa, so that the energy generated by water injection can be used for water pumping, saving the energy consumption of solution replacement.

[0369] The ammonia content in the ammonia chloride solution tank containing ammonia water is measured; the hydrochloric acid content in the hydrochloric acid solution tank containing ammonia chloride is measured. The solutions from each tank are then injected into a "mixed tank containing ammonia water, ammonia water, and hydrogen chloride solution (ammonia chloride solution tank, ammonium chloride crystallization and precipitation tank)" in a ratio sufficient for complete reaction. Within this tank, the ammonia in the mixed solution reacts with the hydrogen chloride to produce ammonium chloride, causing the ammonium chloride solution to supersaturate. This causes the ammonium chloride to crystallize and precipitate in the tank. The solid ammonium chloride is separated and collected by a centrifuge at the bottom of the tank. This system completes a cycle of one day, the same as the solution replacement cycle for the power well.

[0370] The collected ammonia chloride solid is transported to the 1# and 2# reaction tanks, and the production of ammonia and hydrogen chloride is completed in the ammonia and hydrogen chloride regeneration system. It is then transported to the ammonia (hydrogen chloride) storage tank to complete the recycling process of ammonia and hydrogen chloride.

[0371] The reaction tank's reaction cycle lasts one day, the same as the ammonium chloride crystallization and sedimentation tank's operating cycle. This means that within a single day, the ammonium chloride crystallization and sedimentation tank processes all the solution replacements from the ammonia and hydrogen chloride wells, and continuously delivers the generated and collected ammonium chloride solids to the ammonia and hydrogen chloride regeneration systems.

[0372] The reactors in the ammonia and hydrogen chloride regeneration system generate ammonia for 11 hours and hydrogen chloride for 11 hours, for a total of 22 hours, coinciding with the power well system's operating hours. Reactors 1# and 2# operate in staggered cycles: while reactor 1# is generating ammonia, reactor 2# is generating hydrogen chloride; while reactor 2# is generating ammonia, reactor 1# is generating hydrogen chloride. This synchronizes the operation and gas supply of the ammonia and hydrogen chloride regeneration system with the power well system, improving gas supply reliability and reducing energy consumption during gas storage.

[0373] The mass of the gravity block lifted by the power well in a single lift is 801 tons, the lifting height is 100 meters, and the gravitational potential energy stored in a single lift is 784,727,702 joules. With a generator efficiency of 95%, the gravitational potential energy stored in a single lift converts to 207 kWh of electricity. A single power well cycles 110 times a day, generating 22,800 kWh of electricity per day. In the above system, which includes one ammonia power well and one hydrogen chloride power well, the system generates 45,560 kWh of electricity per day, and 16.63 million kWh of electricity per year.

[0374] During operation, the energy required for replacing the solution in the power well, transporting gas between the reaction tank and the gas storage tank, and between the gas storage tank and the power well is almost negligible. The largest energy requirement is the heat required to heat the ammonium bisulfate in the reaction tank to approximately 200°C during ammonia production, which decomposes the ammonium bisulfate.

[0375] Example 3

[0376] The power well of Example 1 requires a vertical shaft to be constructed below ground or a complex supporting structure to be erected above ground. The power well of Example 2 needs to be constructed along a mountain slope. If the slope is uneven, it will be difficult to construct.

[0377] Both Example 1 and Example 2 have the problem that the construction of the power well is difficult and the construction cost is high.

[0378] As an optimization of the power well, the power well can be built on the ground, such as Figure 11 .

[0379] For example, the section below the inflatable rubber bag of the power well is arranged vertically, similar to a vertical power well. The piston travel portion of the power well is arranged horizontally along the ground, at a 90-degree angle to the power well solution pool. This arrangement places the majority of the power well above ground, significantly reducing the difficulty and cost of construction.

[0380] If the ground has a certain slope, the piston stroke part of the power well is also arranged along the ground, forming an obtuse angle greater than 90 degrees or an acute angle less than 90 degrees with the power well solution pool.

[0381] The power well operation process of this embodiment is the same as that of embodiments 1 and 2.

[0382] Example 4

[0383] In Example 1 and Example 2, the power well is used to lift the gravity block to store potential energy, and then the power block converts the potential energy into kinetic energy, thereby completing the power generation process.

[0384] In embodiment 4, the power well drives the crankshaft connected to the power well piston, so that the power of the power well is directly output through the crankshaft. See Figures 12 and 13.

[0385] The following description is made by taking four ammonia-powered wells as an example.

[0386] The four power wells are arranged side by side, with the upper piston of each well connected to the crankshaft via a connecting rod. Power wells 1# and 4# operate in the same group, and power wells 2# and 3# operate in the same group.

[0387] Initial state: The pistons of 1# and 4# power wells are at the lower limit position, and the pistons of 2# and 3# power wells are at the upper limit position.

[0388] The air in the rubber bags in the #2 and #3 power wells is deflated, causing the bags to shrink from a full surface of water to the wall of the fan well. Ammonia dissolves in the ammonium chloride solution, creating a negative pressure inside the well. Under atmospheric pressure, the piston moves downward, driving the crankshaft to rotate, outputting power. When the piston reaches the lower limit, the air in the rubber bags in the #2 and #3 power wells is inflated, covering the water surface. Driven by the crankshaft, the piston moves upward, simultaneously filling the power well with ammonia. During the inflation process, the ammonia pressure in the power well is maintained at one atmosphere. When the piston reaches the upper limit, the ammonia inflation pipe is closed. This completes the process and the next cycle begins.

[0389] The rubber bags for the #1 and #4 power wells are inflated until they cover the water surface. Driven by the crankshaft, the piston moves upward, simultaneously pumping ammonia into the power wells. During the inflation process, the ammonia pressure in the power wells is maintained at one atmosphere. When the piston reaches the upper limit, the ammonia inflation pipe is closed, and the air is removed from the rubber bags for the #1 and #4 power wells. The bags shrink from their full water surface to the wall of the fan well. The ammonia dissolves in the ammonium chloride solution, creating a negative pressure in the well. Under atmospheric pressure, the piston moves downward, driving the crankshaft to rotate, outputting power until the piston reaches the lower limit. This completes the process, and the next cycle begins.

[0390] The operation of 1#, 4# and 2#, 3# power wells is carried out synchronously.

[0391] During the downward movement of the piston, the speed of the piston's downward movement can be accelerated and controlled by a dissolution-aiding fan.

[0392] Similar to the above embodiment, the power wells are equipped with ammonia and hydrogen chloride regeneration systems to enable each power well to operate sustainably.

[0393] The power operation process of this embodiment is similar to the piston operation process of an internal combustion engine. The difference is that the internal combustion engine is a heat engine with a small cylinder volume and a high rotation speed, and relies on gas expansion to do work; this embodiment is not a heat engine, with a large cylinder volume and a slow rotation speed, and relies on gas dissolving in a solution and gas contraction to generate negative pressure to do work.

[0394] This embodiment can be used for direct power generation, and can also be used in large ships to directly drive the transmission system of the ship. It can also be used in other power fields such as mining and machinery.

[0395] Example 5

[0396] Ammonia and hydrogen chloride gas regeneration system.

[0397] It consists of two reaction tanks and attached liquid ammonia storage tank, liquid hydrogen chloride storage tank, ammonia gas storage tank and hydrogen chloride gas storage tank. Figure 15 、16 .

[0398] Liquid ammonia and liquid hydrogen chloride storage tanks are cylindrical steel tanks lined with materials such as fiberglass, stainless steel, and resin that are resistant to ammonia and hydrogen chloride gas corrosion. These tanks are intended to improve the ammonia and hydrogen chloride gas supply rates of the power well system and are not essential to the system. Their capacity and need for installation can be determined based on system requirements.

[0399] The ammonia and hydrogen chloride storage tanks serve as a transitional system connecting the reaction tank and the power well. They temporarily store the ammonia and hydrogen chloride gases produced by the reaction tank. To improve the system's gas supply reliability, the storage tank pressure can be kept at 100-200 kPa. When the power well piston is moving upward, the storage tanks connect the reaction tank and the power well. When the power well piston is moving downward, the power well does not require gas supply, and the gas produced by the reaction tank is temporarily stored in the storage tanks.

[0400] The chemical reaction process in the reaction tank: The reaction tank contains sulfuric acid. Solid ammonium chloride generated in the ammonium chloride crystallization and precipitation tank in the power well system reacts with the sulfuric acid in the reaction tank to produce ammonium bisulfate and hydrogen chloride gas. The chemical reaction equation is: H4Cl + H2SO4 ==== NH4HSO4 + HCl↑. The generated hydrogen chloride gas is piped to the hydrogen chloride storage tank. The remaining substance in the reaction tank is ammonium bisulfate. When the ammonium bisulfate is heated to approximately 200°C, it decomposes into ammonia and sulfuric acid. The generated ammonia gas is piped to the ammonia storage tank. After the reaction is complete, sulfuric acid remains in the reaction tank, returning to its initial state.

[0401] Take Example 1 as an example.

[0402] Two reaction tanks form a group, and the processing capacity of one group of reaction tanks must meet the amount of ammonia chloride produced by one ammonia power well and one hydrogen chloride power well system in one day.

[0403] The ammonia wells use 334 tons of ammonia per day, and the hydrogen chloride wells use 640 tons of hydrogen chloride per day. The system produces 974 tons of ammonia chloride per day, so a single reactor processes 974 tons of ammonia chloride / 2 = 487 tons. The production time for ammonia and hydrogen chloride in a single reactor is the same, and corresponds to the operating hours of the power system: 11 hours for ammonia and 11 hours for hydrogen chloride. The two reactors operate in staggered cycles: while reactor 1 is producing ammonia, reactor 2 is producing hydrogen chloride.

[0404] A single reactor needs to process 487 tons of ammonium chloride, so at least 891 tons of sulfuric acid are needed in the reactor to meet the needs of the reaction with ammonium chloride.

[0405] The diameter of the reaction tank is 10m. For conservative purposes, 1000t of sulfuric acid is pre-loaded into the reaction tank. The bulk density of sulfuric acid is 1840kg / m3, and the depth of the sulfuric acid solution in the reaction tank is 6.9m.

[0406] After 487t of ammonium chloride reacts with sulfuric acid in the reaction tank, the weight of the generated ammonium bisulfate is 1225t, the bulk density of ammonium bisulfate is 1780kg / m3, and the depth of ammonium bisulfate in the reaction tank is 8.8m.

[0407] In order to leave enough chemical reaction space and some gas storage space in the reaction tank, the height of the reaction tank is 20m.

[0408] The initial state of the two reaction tanks is: each tank is filled with 1000t of sulfuric acid.

[0409] Reactor #1: 487 tons of ammonium chloride were added at a rate of 0.74 tons / minute through the ammonium chloride feed pipe and bulk feeder at the top of the reactor. The added ammonium chloride reacted chemically with the sulfuric acid in the reactor, producing hydrogen chloride gas and ammonium bisulfate. The generated hydrogen chloride gas was then transported to the hydrogen chloride storage tank via the hydrogen chloride gas pipeline and air pump installed at the top of the reactor. After 11 hours, all 487 tons of ammonium chloride had been added and the reaction was complete, leaving the reactor with ammonium bisulfate.

[0410] Start the electromagnetic heating system in the bottom, barrel and stirring blades of the reaction tank to heat the ammonium bisulfate in the reaction tank to about 200 degrees. The ammonium bisulfate in the reaction tank is decomposed into sulfuric acid and ammonia by heat. The generated ammonia is transported to the ammonia storage tank through the ammonia gas pipeline and air pump installed on the top of the reaction tank.

[0411] By using layered heating, temperature control, and intermittent heating, the decomposition rate of ammonium bisulfate is controlled, resulting in uniform decomposition within 11 hours. For example, the electromagnetic heating in the topmost stirring blade and the electromagnetic heating system on the upper portion of the tank can be activated first, followed by the stirring blades and the electromagnetic heating system on the tank layer by layer. Once the ammonium bisulfate is completely decomposed, sulfuric acid remains in the reaction tank, returning to its initial state.

[0412] When Reactor #1 begins producing hydrogen chloride, Reactor #2 begins operation, adding ammonium chloride to initiate ammonia production. By alternating these two reactors, the system simultaneously produces both ammonia and hydrogen chloride for the entire 22 hours the power well is operating. Together with the power well system, this system forms a complete closed-loop regeneration and circulation system.

[0413] Example 6

[0414] Reactor tank heating heat source system.

[0415] In each of the above embodiments, the core energy-consuming link is heating ammonium bisulfate in the reaction tank to generate ammonia gas.

[0416] In each of the above embodiments, due to the system operation characteristics and the gas storage system, the entire system has very low stability requirements for the operation of the power well and the reaction tank.

[0417] The power well has low stability requirements for the operation process during gas dissolution, and can be fast or slow, or fast and slow at different times.

[0418] The stability requirement for heating and decomposing ammonium bisulfate in the reaction tank is relatively low, and can be fast or slow, or fast and slow at different times, or intermittent. In Example 1, when the pressure in the ammonia storage tank is 200 KPa, the ammonia capacity in the storage tank is 3.2 times the amount of ammonia required for one cycle of the ammonia power well. That is, in the case where the reaction tank does not supply ammonia to the ammonia storage tank, the ammonia stored in the ammonia storage tank can meet the needs of three cycles of the ammonia power well. The cycle time of the ammonia power well is 12 minutes, and the cycle time of three cycles is 36 minutes. That is, the reaction tank can be paused for about 30 minutes during the production of ammonia. If the pressure of the ammonia in the ammonia storage tank or the volume of the storage tank is increased, the stability requirement of the system for the reaction tank will be lower.

[0419] Ammonia can be converted from a gaseous state to a liquid state by pressurizing it to 1.06 MPa at an ambient temperature of 30°C. One cubic meter of liquid ammonia can be converted into 790 cubic meters of gaseous ammonia. Since the core energy-consuming process of the system is heating ammonium bisulfate to produce ammonia, and ammonia is easy to store in a liquid state, the system can increase the storage capacity of liquid ammonia, further reducing the stability requirement for the reaction tank to generate ammonia.

[0420] Taking Example 1 as an example, the ammonia consumption of the ammonia power well in one day is 433,000 cubic meters, and the ammonia consumption in two days is 866,000 cubic meters. If the ammonia consumption of the ammonia power well in two days is converted to liquid ammonia, the volume of the liquid ammonia is 1097 cubic meters, i.e. only one liquid ammonia storage tank with a capacity of about 1100 cubic meters is needed to meet the ammonia consumption demand of the ammonia power well for two days.

[0421] In summary, the stability requirement for the heat source for heating ammonium bisulfate in the reaction tank to produce ammonia is very low, and the power from the unstable solar and wind power auxiliary power generation system can be used to provide heat to the reaction tank.

[0422] Coal can be directly used to provide heat to the reaction tank. As we all know, the thermal efficiency of a general thermal power plant is only about 40%. If coal is directly used to provide heat to the reaction tank, the coal thermal efficiency utilization rate can reach more than 90%. That is, if this power generation system is scaled up to replace the thermal power plant and all coal is used to heat the reaction tank, the coal thermal efficiency utilization rate is more than 90%, which is more than twice the coal thermal efficiency utilization rate of the thermal power plant.

[0423] It can be combined with a thermal power plant to utilize the waste heat of flue gas, steam, etc. from the thermal power plant. The flue gas and steam are coiled in a reaction tank through a pipeline to heat the ammonium bisulfate in the reaction tank as a heat source for the reaction tank.

[0424] It can be combined with an ocean-going freighter, using the exhaust gas of the freighter's large engine as the heat source of the reaction tank, becoming the freighter's auxiliary power system, and improving the fuel energy utilization rate of the ocean-going freighter.

[0425] The system can also be miniaturized and used in trucks or small cars as the vehicle's power system.

[0426] Example 7

[0427] In the above embodiment, the gas temperature in the power well is a normal temperature of 20° C., and the temperature of the gas generated in the reaction tank is not considered.

[0428] If the above embodiment is scaled up and systematized, it is entirely possible to synchronize the production process of the reaction tank with the operation process of the power well, thereby maximizing energy utilization.

[0429] For example, if the ammonia generated in the reactor has a temperature of 200°C and the reactor operates synchronously with the power well, the temperature of the ammonia delivered to the power well will also be 200°C. At standard atmospheric pressure, the density of ammonia at 20°C is 0.759 kg / m³, and at 200°C it is 0.438 kg / m³. This means that the density of ammonia at 200°C is 58% of its density at 20°C. In other words, when the ammonia in the power well is at 200°C, the mass of ammonia required for power well operation is only 58% of the mass at normal temperature. Therefore, if the reactor system and the power well system operate synchronously, the use of raw materials such as ammonia, hydrogen chloride, and sulfuric acid can be significantly reduced, further reducing energy consumption.

[0430] The above-mentioned embodiments can be scaled up and co-produced with the fertilizer industry, heating industry, and other industries. For example, during the winter heating period in northern China, the temperature of ammonia in the ammonia-powered well is 200°C. Before the ammonia dissolves in water, the heat in the ammonia well can be transferred to the heating facility through a heat exchange facility installed in the ammonia-powered well. During the operation of the hydrogen chloride-powered well, hydrogen chloride gas dissolves in the ammonium chloride solution, releasing a large amount of heat, causing the solution to heat up. Heat exchange facilities can also be installed in the solution to transfer the heat generated by the hydrogen chloride gas dissolving in water to the heating facility. This achieves the co-production of power generation and heating, further improving energy utilization efficiency.

Claims

1. A piston-type gas-powered well energy storage and power generation system, characterized in that: Includes gas powered wells, lift wells, drop wells, piston assemblies, isolation devices, power generation equipment, and gravity blocks; The gas-powered well has a sliding cavity inside for the piston assembly to reciprocate, a solution pool is provided at the bottom of the sliding cavity, and a mutually independent gas injection pipeline, liquid injection pipeline and liquid outlet pipeline are provided in the well wall of the gas-powered well. The gas injection pipeline is used to inject a gas that is highly soluble in water into the gas-powered well, the outlet of the gas injection pipeline is located at the bottom of the sliding cavity, the outlet of the liquid injection pipeline is located at the bottom of the solution pool, and the inlet of the liquid outlet pipeline is located at the bottom of the solution pool. A first truss beam is provided at the top of the gas-powered well to provide support for the piston assembly, and a first pulley is provided on the first truss beam; The interior of the lifting shaft is provided with an ascending channel for lifting the gravity block, the top of the lifting shaft is provided with a second truss beam, and the second truss beam is provided with a second pulley; The interior of the drop well is provided with a descending channel for the gravity block to descend, the top of the drop well is provided with a third truss beam, and the third truss beam is provided with a third pulley; The top of the lifting shaft is connected to the top of the drop shaft by a track, and the bottom of the lifting shaft is connected to the bottom of the drop shaft by a tunnel. The tunnel is used for the gravity block to enter the bottom of the ascending channel from the bottom of the descending channel; The piston assembly is located in the sliding chamber of the gas-powered well, and the piston assembly includes a piston block, a connecting frame, a support roller and a connecting rope. The support roller is installed on the side wall of the piston block, and the piston block is connected to the inner wall of the sliding chamber through the support roller. A sealing structure is provided between the side wall of the piston block and the inner wall of the sliding chamber, and the sealing structure is located between a pair of support rollers. The connecting frame is fixed to the top of the piston block, and one end of the connecting rope is fixed to the connecting frame. The connecting rope has a free end connected to the gravity block, and the free end of the connecting rope is suspended in the lifting well through the guidance of the first pulley and the second pulley; The isolation device is located between the sliding cavity and the solution pool, and has a telescopic end surface that isolates the gas in the sliding cavity from contacting the liquid in the solution pool; The power generation equipment is installed above the drop shaft. A drum is connected to the output shaft of the power generation equipment. A steel wire rope is wound on the drum. One end of the steel wire rope is fixed to the drum. The steel wire rope has a connecting end connected to the gravity block. The connecting end of the steel wire rope is suspended in the drop shaft through the guidance of the third pulley.

2. The piston-type gas-powered well energy storage and power generation system according to claim 1, characterized in that: The sealing structure includes a first sealing ring and a second sealing ring. The first sealing ring and the second sealing ring are both sleeved on the side wall of the piston block. A watertight cavity for accommodating water is formed between the first sealing ring and the second sealing ring.

3. The piston-type gas-powered well energy storage and power generation system according to claim 2, characterized in that: A water tank for accommodating water is provided on the piston block, a communicating hole is provided on the inner wall of the watertight cavity, and the bottom of the water tank is connected to the watertight cavity through the communicating hole.

4. The piston-type gas-powered well energy storage and power generation system according to claim 1, characterized in that: An air shaft is provided in the middle of the solution pool, the bottom of the air shaft is fixed to the bottom of the solution pool, and a fan is provided inside the air shaft.

5. The piston-type gas-powered well energy storage and power generation system according to claim 4, characterized in that: A ventilation structure is arranged between the air shaft and the solution pool along the radial direction of the air shaft. The ventilation structure is located below the isolation device. The ventilation structure includes an air barrier layer, a ventilation pipe and a sponge layer. The air barrier layer is covered on the top of the sponge layer. The sponge layer is immersed in the water of the solution pool. The ventilation pipe is embedded in the sponge layer. The ventilation pipe is connected to the side wall of the air shaft, and the side wall of the ventilation pipe is provided with air diffusion holes.

6. The piston-type gas-powered well energy storage and power generation system according to claim 5, characterized in that: The isolation device includes an inflatable rubber bag, which is sleeved on the side wall of the air shaft. The inflatable rubber bag performs telescopic movement in the radial direction of the air shaft under the control of the air pump.

7. The piston-type gas-powered well energy storage and power generation system according to claim 1, characterized in that: The gas-powered wells include an ammonia-powered well and a hydrogen chloride-powered well. The ammonia-powered well is provided with a first lifting well corresponding to the ammonia-powered well, and the hydrogen chloride-powered well is provided with a second lifting well corresponding to the hydrogen chloride-powered well. The drop well is located between the first lifting well and the second lifting well. The top of the first lifting shaft is connected to the top of the drop shaft via a track, and the bottom of the first lifting shaft is connected to the bottom of the drop shaft via a tunnel; The top of the second lifting shaft is connected to the top of the drop shaft through a track, and the bottom of the second lifting shaft is connected to the bottom of the drop shaft through a tunnel.

8. The piston-type gas-powered well energy storage and power generation system according to claim 7, characterized in that: An ammonia storage tank is provided on one side of the ammonia power well, and the ammonia storage tank is connected to the gas injection pipeline in the ammonia power well through a pipeline.

9. The piston-type gas-powered well energy storage and power generation system according to claim 8, characterized in that: A hydrogen chloride gas storage tank is provided on one side of the hydrogen chloride gas power well, and the hydrogen chloride gas storage tank is connected to the gas injection pipeline in the hydrogen chloride gas power well through a pipeline.

10. The piston-type gas-powered well energy storage and power generation system according to claim 9, characterized in that: An ammonium chloride solution storage tank is provided between the ammonia power well and the hydrogen chloride power well, and the ammonium chloride solution storage tank transports the ammonium chloride solution to the injection pipeline of the ammonia power well and the injection pipeline of the hydrogen chloride power well through pipelines.

11. The piston-type gas-powered well energy storage and power generation system according to claim 10, characterized in that: An ammonia chloride solution tank containing ammonia water is provided on one side of the ammonia power well, and the ammonia chloride solution tank containing ammonia water is connected to the liquid outlet pipeline of the ammonia power well through a pipeline.

12. The piston-type gas-powered well energy storage and power generation system according to claim 11, characterized in that: An ammonium chloride solution tank containing hydrochloric acid is provided on one side of the hydrogen chloride gas-powered well, and the ammonium chloride solution tank containing hydrochloric acid is connected to the liquid outlet pipeline of the hydrogen chloride gas-powered well through a pipeline.

13. The piston-type gas-powered well energy storage and power generation system according to claim 11, characterized in that: A mixing tank is provided between the ammonia chloride solution tank containing ammonia water and the ammonia chloride solution tank containing hydrochloric acid. The ammonia chloride solution tank containing ammonia water is connected to the mixing tank through a pipeline, the ammonia chloride solution tank containing hydrochloric acid is connected to the mixing tank through a pipeline, and the mixing tank is connected to the ammonia chloride solution storage tank through a pipeline.

14. The piston-type gas-powered well energy storage and power generation system according to claim 9, characterized in that: A reaction tank is provided between the ammonia power well and the hydrogen chloride power well. The reaction tank is connected to the ammonia storage tank through a pipeline. The reaction tank is also connected to the hydrogen chloride storage tank through a pipeline. The reaction tank, the ammonia storage tank and the hydrogen chloride storage tank constitute a regeneration system for ammonia and hydrogen chloride.

15. The piston-type gas-powered well energy storage and power generation system according to claim 1, characterized in that: The gas power well, the lifting well and the drop well are all embedded below the ground surface.

16. The piston-type gas-powered well energy storage and power generation system according to claim 1, characterized in that: The gas power well, lifting well and lowering well are all constructed beside the mountain, and the power generation equipment is located on the top of the mountain.

17. A piston-type gas-powered well energy storage and power generation system, characterized in that: Includes gas powered wells, piston assemblies, isolation devices, and power generation equipment; The axial direction of the gas power well is arranged horizontally. The interior of the gas power well has a sliding cavity for the piston assembly to reciprocate. A solution pool is provided on one side of the sliding cavity. The solution pool and the sliding cavity form an L-shaped structure. A truss column is provided on the other side of the gas power well to provide traction to the piston assembly. A diverting pulley is provided on the truss column. The well wall of the gas-powered well is provided with mutually independent gas injection pipelines, liquid injection pipelines and liquid outlet pipelines. The gas injection pipeline is used to inject a gas that is highly soluble in water into the gas-powered well. The outlet of the gas injection pipeline is located inside the sliding cavity, the outlet of the liquid injection pipeline is located at the bottom of the solution pool, and the inlet of the liquid outlet pipeline is located at the bottom of the solution pool. The power generation equipment is installed on the truss column, and a drum is connected to the output shaft of the power generation equipment; The piston assembly is located in the sliding cavity of the gas power well, and the piston assembly includes a piston block, a connecting frame, a support roller and a connecting rope. The support roller is installed on the side wall of the piston block, and the piston block is connected to the inner wall of the sliding cavity through the support roller. A sealing structure is provided between the side wall of the piston block and the inner wall of the sliding cavity, and the sealing structure is located between a pair of support rollers. The connecting frame is fixed to the top of the piston block, one end of the connecting rope is fixed to the connecting frame, and the other end of the connecting rope is wound on the reel through the guidance of the diverting pulley; The isolation device is located between the sliding cavity and the solution pool, and has a telescopic end surface for isolating the gas in the sliding cavity from contacting the liquid in the solution pool.

18. The piston-type gas-powered well energy storage and power generation system according to claim 17, characterized in that: The sealing structure includes a first sealing ring and a second sealing ring. The first sealing ring and the second sealing ring are both sleeved on the side wall of the piston block. A watertight cavity for accommodating water is formed between the first sealing ring and the second sealing ring.

19. The piston-type gas-powered well energy storage and power generation system according to claim 18, characterized in that: A water tank for accommodating water is provided on the piston block, a communicating hole is provided on the inner wall of the watertight cavity, and the bottom of the water tank is connected to the watertight cavity through the communicating hole.

20. The piston-type gas-powered well energy storage and power generation system according to claim 17, characterized in that: An air shaft is provided in the middle of the solution pool, the bottom of the air shaft is fixed to the bottom of the solution pool, and a fan is provided inside the air shaft.

21. The piston-type gas-powered well energy storage and power generation system according to claim 20, characterized in that: A ventilation structure is arranged between the air shaft and the solution pool along the radial direction of the air shaft. The ventilation structure is located below the isolation device. The ventilation structure includes an air barrier layer, a ventilation pipe and a sponge layer. The air barrier layer is covered on the top of the sponge layer. The sponge layer is immersed in the water of the solution pool. The ventilation pipe is embedded in the sponge layer. The ventilation pipe is connected to the side wall of the air shaft, and the side wall of the ventilation pipe is provided with air diffusion holes.

22. The piston-type gas-powered well energy storage and power generation system according to claim 21, characterized in that: The isolation device includes an inflatable rubber bag, which is sleeved on the side wall of the air shaft. The inflatable rubber bag performs telescopic movement in the radial direction of the air shaft under the control of the air pump.

23. A piston-type gas-powered well energy storage and power generation system, characterized in that: Includes gas power wells, piston assemblies, isolation devices, connecting rods, crankshafts, and power generation equipment; The gas-powered well has a sliding cavity inside for the piston assembly to reciprocate, a solution pool is provided at the bottom of the sliding cavity, and a mutually independent gas injection pipeline, liquid injection pipeline and liquid outlet pipeline are provided in the well wall of the gas-powered well. The gas injection pipeline is used to inject a gas that is highly soluble in water into the gas-powered well. The outlet of the gas injection pipeline is located at the bottom of the sliding cavity, the outlet of the liquid injection pipeline is located at the bottom of the solution pool, and the inlet of the liquid outlet pipeline is located at the bottom of the solution pool. The piston assembly is located in the sliding cavity of the gas power well, and the piston assembly includes a piston block, a connecting frame, a support roller, a connecting rod and a crankshaft. The support roller is installed on the side wall of the piston block, and the piston block is connected to the inner wall of the sliding cavity through the support roller. A sealing structure is provided between the side wall of the piston block and the inner wall of the sliding cavity, and the sealing structure is located between a pair of support rollers. The connecting frame is fixed to the top of the piston block, and the connecting frame is connected to the crankshaft through a connecting rod; The isolation device is located between the sliding cavity and the solution pool, and has a telescopic end surface that isolates the gas in the sliding cavity from contacting the liquid in the solution pool; The output shaft of the power generation device is connected to one end of the crankshaft.

24. The piston-type gas-powered well energy storage and power generation system according to claim 23, characterized in that: The sealing structure includes a first sealing ring and a second sealing ring. The first sealing ring and the second sealing ring are both sleeved on the side wall of the piston block. A watertight cavity for accommodating water is formed between the first sealing ring and the second sealing ring.

25. The piston-type gas-powered well energy storage and power generation system according to claim 24, characterized in that: A water tank for accommodating water is provided on the piston block, a communicating hole is provided on the inner wall of the watertight cavity, and the bottom of the water tank is connected to the watertight cavity through the communicating hole.

26. The piston-type gas-powered well energy storage and power generation system according to claim 23, characterized in that: An air shaft is provided in the middle of the solution pool, the bottom of the air shaft is fixed to the bottom of the solution pool, and a fan is provided inside the air shaft.

27. The piston-type gas-powered well energy storage and power generation system according to claim 26, characterized in that: A ventilation structure is arranged between the air shaft and the solution pool along the radial direction of the air shaft. The ventilation structure is located below the isolation device. The ventilation structure includes an air barrier layer, a ventilation pipe and a sponge layer. The air barrier layer is covered on the top of the sponge layer. The sponge layer is immersed in the water of the solution pool. The ventilation pipe is embedded in the sponge layer. The ventilation pipe is connected to the side wall of the air shaft, and the side wall of the ventilation pipe is provided with air diffusion holes.

28. The piston-type gas-powered well energy storage and power generation system according to claim 27, characterized in that: The isolation device includes an inflatable rubber bag, which is sleeved on the side wall of the air shaft. The inflatable rubber bag performs telescopic movement in the radial direction of the air shaft under the control of the air pump.

29. The piston-type gas-powered well energy storage and power generation system according to claim 23, characterized in that: A plurality of gas power wells are linearly arranged along the axial direction of the crankshaft, and a connecting frame of a piston assembly in each gas power well is connected to the crankshaft through a connecting rod.

30. The energy storage and power generation method of the piston-type gas-powered well energy storage and power generation system according to any one of claims 1 to 16, characterized in that: include: Step 1: Fill the gas-powered well with ammonium chloride solution at the designed water level, set the isolation device to the extended state, inject ammonia into the sliding cavity of the gas-powered well, extend the piston assembly to the highest limit of the gas-powered well, and place the gravity block at the bottom of the lifting well; Step 2: Set the isolation device to a contracted state. The liquid surface of the solution pool contacts the ammonia gas in the sliding chamber, causing the ammonia gas to dissolve in the ammonium chloride solution. As the ammonia gas dissolves in the ammonium chloride solution, the air pressure in the well decreases, and the piston assembly begins to move downward. The connecting rope and pulley system lifts the gravity block in the lifting well. When the piston assembly reaches the lowest limit of the gas-powered well, the gravity block is lifted to the wellhead of the lifting well. Step 3: Transfer the weight block to the wellhead of the drop shaft through the wellhead track, and connect the weight block to the wire rope on the drum at the output shaft end of the power generation equipment. The weight block falls along the drop shaft. During the falling process, the wire rope and pulley system drive the generator to rotate and generate electricity; Step 4: After the gravity block falls to the bottom of the well, move along the tunnel to the bottom of the gravity block lifting well, and then follow steps 1 to 3 to start the next cycle.

31. The energy storage and power generation method of the piston-type gas-powered well energy storage and power generation system according to any one of claims 17 to 22, characterized in that: include: Step 1: Fill the gas-powered well with ammonia chloride solution at a designed water level, set the isolation device to an extended state, inject ammonia gas into the sliding cavity of the gas-powered well, and extend the piston assembly to the far right of the gas-powered well; Step 2: The isolation device is set to a contracted state. The liquid surface of the solution pool contacts the ammonia gas in the sliding chamber, causing the ammonia gas to dissolve in the ammonium chloride solution. As the ammonia gas dissolves in the ammonium chloride solution, the air pressure in the well decreases, causing the piston assembly to move to the left, thereby driving the power generation equipment to generate electricity. Step 3: When the piston assembly moves to the leftmost side of the gas-powered well, the isolation device is set to an extended state, and ammonia is injected into the sliding cavity of the gas-powered well, thereby pushing the piston assembly back to the rightmost side of the gas-powered well; Step 4: Follow steps 1 to 3 to start the next cycle.

32. The energy storage and power generation method of the piston-type gas-powered well energy storage and power generation system according to any one of claims 23 to 29, characterized in that: include: Step 1: Fill the gas-powered well with ammonia chloride solution at a designed water level, set the isolation device to an extended state, inject ammonia gas into the sliding cavity of the gas-powered well, and rotate the piston assembly to the highest limit of the gas-powered well; Step 2: The isolation device is set to a contracted state. The liquid surface of the solution pool contacts the ammonia gas in the sliding chamber, causing the ammonia gas to dissolve in the ammonium chloride solution. As the ammonia gas dissolves in the ammonium chloride solution, the air pressure in the well decreases, causing the piston assembly to move downward, thereby driving the power generation equipment to generate electricity. Step 3: When the piston assembly reaches the lowest limit of the gas-powered well, the isolation device is set to an extended state, and ammonia is injected into the sliding cavity of the gas-powered well to push the piston assembly back to the highest limit of the gas-powered well; Step 4: Follow steps 1 to 3 to start the next cycle.

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