Air energy complementing power generation system suitable for refrigerant energy storage system

Abstract

The utility model relates to the field of machinery, in particular to a fluid power generation technology. An air energy complementing power generation system suitable for a refrigerant energy storage system comprises the refrigerant energy storage system which is provided with a low-pressure refrigerant air storage chamber and a high-pressure refrigerant air storage tank, and further comprises a channel type power generation system with a built-in power generator. The channel type power generation system with the built-in generator comprises a circulation channel, and the circulation channel is provided with an air inlet and an air outlet. The high-pressure refrigerant gas storage tank is connected with a gas inlet of the circulating channel through a valve; an air outlet of the circulating channel is connected to the low-pressure refrigerant air storage chamber; a movable device which is allowed to circularly move in the circulating channel is further arranged in the circulating channel, a generator is arranged on the movable device, and when the movable device moves in the circulating channel, a rotor of the generator is driven to rotate to generate electricity.

Description

Technical Field

[0001] This application relates to the field of machinery, and specifically to fluid power generation technology. Background Art

[0002] In the context of the increasing energy demand and the volatility of renewable energy output, compressed air energy storage (CAES) technology, as an efficient energy storage method, has received extensive attention in recent years. Based on traditional compressed air energy storage, technologies such as thermal energy storage compressed air energy storage (TS-CAES), liquid compressed air energy storage (LAES), and supercritical compressed air energy storage (SC-CAES) have been developed. An expander in the form of a high-pressure refrigerant driving a twin-screw expander, a two-rotor expander, a scroll expander, etc. drives a generator to rotate to achieve air energy replenishment power generation.

[0003] For the above various compressed air energy storage technologies, they often require high-pressure and large-capacity gas storage containers that can withstand pressures of up to one or two hundred atmospheres. Therefore, the construction period of the energy storage system is long and the construction cost is high.

[0004] Using refrigerant to replace air for energy storage solves the problems of long construction period and high construction cost caused by the need for high-pressure and large-capacity gas storage containers in air energy storage. For example, the commonly used refrigerant R125 can be compressed into a liquid refrigerant at temperatures below 96 °C and pressures of 8 - 12 Mpa. Therefore, for a high-pressure refrigerant energy storage tank with refrigerant as the energy storage medium, both the capacity and pressure resistance are much lower than the requirements of high-pressure refrigerant energy storage.

[0005] However, since the pressure storage of the refrigerant energy storage system is not as high as that of compressed air energy storage, when driving the expander to generate electricity, it is often weakened and the output power is relatively limited, and the two are not well matched.

[0006] In addition, the expander itself has a complex structure and is prone to damage mechanical components. In particular, the expander needs to be equipped with an expensive shaft seal, and the shaft seal is easily damaged, which will cause potential safety hazards. Therefore, the maintenance cost is very high. Utility Model Content

[0007] The purpose of this utility model is to provide an air energy replenishment power generation system applicable to a refrigerant energy storage system to solve at least one of the above technical problems.

[0008] The technical problems solved by this utility model can be achieved by the following technical solutions:

[0009] An air energy replenishment power generation system applicable to a refrigerant energy storage system includes a refrigerant energy storage system, and the refrigerant energy storage system has a low-pressure refrigerant gas storage chamber and a high-pressure refrigerant gas storage tank.

[0010] It further includes a channel-type power generation system built into a generator;

[0011] The channel - type power generation system built into the generator includes a circulation channel, and an air inlet and an air outlet are arranged on the circulation channel;

[0012] The high - pressure refrigerant gas storage tank is connected to the air inlet of the circulation channel through a valve;

[0013] The air outlet of the circulation channel is connected to the low - pressure refrigerant gas storage chamber;

[0014] Between the air inlet and the air outlet, there is also a valve. After closing, the valve blocks the airflow from the air inlet to the air outlet, and it is a valve for controlling gas flow;

[0015] When the valve is in the conducting state, the opening shape is a shape that allows the movable device to pass through;

[0016] There is also a movable device that is allowed to move cyclically in the circulation channel. The movable device has a structure that blocks the airflow from flowing in the circulation channel;

[0017] The outer wall of the circulation channel is provided with metal fins, and there is also a fan facing the metal fins;

[0018] There is also an energy output mechanism that outputs the energy of the movable device out of the circulation channel;

[0019] The energy output mechanism includes a power generation system arranged on the movable device and a power transmission mechanism that outputs electric energy through the circulation channel;

[0020] The power generation system on the movable device includes a generator and a rolling device linked to the rotor of the generator. The rolling device directly or indirectly abuts against the inner wall of the circulation channel;

[0021] The electric energy output terminal of the generator is connected to the power transmission mechanism.

[0022] In the above design, the high - pressure refrigerant gas storage tank in the refrigerant energy storage system serves as the gas source power. Using the high - pressure gas power to push the movable device to move cyclically in the circulation channel, the way that the electric energy output terminal of the generator is connected to the power transmission mechanism can be through wire connection or through electromagnetic induction connection.

[0023] Compared with the traditional structure of pushing a piston by gas power, this design has no energy waste in deceleration or reverse movement for reset, so it has a higher energy conversion rate.

[0024] In addition, because there is no need for reverse movement for reset, it is allowed to build larger equipment, and a system with a gas - containing space thousands of times, or even tens of thousands of times larger than that of a piston cylinder can be manufactured at a relatively low cost. And it is allowed to output more energy than the piston - cylinder structure under the condition that the moving speed of the movable device is lower.

[0025] Since the moving speed of the movable device allows for a lower speed, the precision requirements for the structural construction are lower compared to the piston-cylinder structure, which is more conducive to production, has a lower production cost, and is also more stable and reliable in operation.

[0026] In addition, since there is no problem of changing the movement direction of the piston, problems such as noise and wear during operation are smaller.

[0027] The specific usage method of the channel-type power generation system built into the generator is as follows:

[0028] High-pressure refrigerant enters the circulation channel from the air inlet. The movable device moves in a cycle within the circulation channel under the push of the high-pressure refrigerant, and then drives the rolling device to move. Since the rolling device directly or indirectly abuts against the inner wall of the circulation channel, rolling occurs.

[0029] The rotor of the generator is linked with the rolling device. Therefore, the rolling of the rolling device drives the rotation of the generator rotor, and then electricity is generated. The generated electric energy is output to the outside through the conducting power transmission mechanism.

[0030] In the above design, the generator is creatively built into the circulation channel through which the high-pressure refrigerant supplies and circulates, and the generator moves together with the movable device to generate electricity dynamically.

[0031] In traditional designs, the generator is fixed, and the rotor is rotated by other power components. In this design, the design of making the generator move together with the movable device (power component) is a completely different design concept.

[0032] In traditional designs, those skilled in the art would think that the more stable the installation of the generator, the more conducive it is to stable operation, the more conducive it is to electric energy output, the more conducive it is to maintenance, and the more energy waste can be avoided.

[0033] However, the above design of this application overcomes the above technical prejudice, moves the generator, and achieves unexpected technical effects.

[0034] This design is applied in the pneumatic power generation system and has the advantages of high conversion efficiency, stable performance, simple structure, and easy maintenance compared to air energy storage power generation systems in the forms of twin-screw expanders, twin-rotor expanders, scroll expanders, turbines, etc.

[0035] Metal fins are provided on the outer wall of the circulation channel, and a fan is used to direct the surrounding air towards the metal fins. Its function is to gather the heat in the surrounding air towards the circulation channel to supplement energy for the high-pressure refrigerant in the circulation channel.

[0036] During the expansion process of the high-pressure refrigerant in the circulation channel, it will become cold, reducing the kinetic energy output. Therefore, it is necessary to supplement energy from the air and use the heat in the air to heat the high-pressure refrigerant in the circulation channel, improve the expansion force, and thus increase the kinetic energy output power.

[0037] The above design can eliminate auxiliary heating and expansion devices such as the heat storage system and the reheater, saving construction costs.

[0038] Furthermore, the generator adopts at least one of a cage-type generator and a piezoelectric generator.

[0039] In this design, the generator adopts a cage-type generator or a piezoelectric generator. Both of these generators have the characteristics of simple structure and convenient manufacturing. Therefore, the generator has a small volume, light weight, good starting performance, and a high starting success rate, and is suitable for generating electricity driven by compressed refrigerant with a high pressure of only 8 - 12 Mpa.

[0040] Furthermore, an airtight pipeline is provided between the air outlet and the valve. After at least a part of the moving device enters the airtight pipeline, an airtight cavity is formed between the air outlet and the valve.

[0041] During the movement of the moving device, the space of the airtight cavity is compressed, and the valve is pushed open by the air pressure.

[0042] In this design, the valve adopts a one-way conduction valve, and the conduction direction is from the air outlet direction to the air inlet direction. When the moving device crosses the air outlet and enters the airtight pipeline provided between the air outlet and the valve, under the action of at least one of inertia, gravity, magnetism or other forces, the gas in this section of the pipeline is compressed during the forward movement of the moving device, and the compressed gas generates air pressure. This air pressure partially opens or fully opens the one-way valve. Even if the one-way valve is partially opened, it can greatly reduce the impact force when the moving device further opens the one-way valve by impact; if the air pressure can fully open the one-way valve, it can weaken or even avoid the impact force when passing through the one-way valve.

[0043] When the moving device runs to the one-way valve, it pushes open the one-way valve and passes through.

[0044] Furthermore, a lubricating oil supply system is also provided. The lubricating oil supply system includes an oil storage device, the oil storage device is connected to an oil supply pipeline, and the oil supply pipeline is connected to an oiling component for applying lubricating oil; the opening of the oiling component is communicated with the channel of the circulation channel; the oiling component is arranged in the channel of the circulation channel.

[0045] When the moving device passes through the oiling component, the moving device can be oiled to reduce the friction force. Because the oiling component is arranged in the channel, oiling can be carried out during operation without stopping the machine.

[0046] When the movable device passes through the oiling component, the movable device is oiled to form an oil seal, reducing the air flow lost from the side of the movable device and improving the energy utilization efficiency.

[0047] The oiling component is preferably arranged between the air outlet and the valve, avoiding the oiling component from bearing high pressure or high-speed air flow, preventing the lubricating oil from being pushed back reversely and blown into the air flow, ensuring the oiling effect and avoiding waste of lubricating oil.

[0048] Furthermore, it also includes an intake air flow control system. The intake air flow control system includes a controlled air valve arranged between the intake port and the high-pressure gas source provided by the high-pressure refrigerant gas storage tank; it also includes a control circuit which is controllably connected to the controlled air valve; there is also a pressure sensor for detecting the pressure in the circulation channel, and the control circuit is signal-connected to the pressure sensor.

[0049] In the above design, the pressure sensor detects the pressure condition in the circulation channel, and controls the intake air volume according to the information including the operating condition of the movable device, so that the movable device operates stably at an appropriate air pressure state.

[0050] Furthermore, at least two circulation channels are provided; movable devices are respectively arranged in at least two circulation channels; at least two circulation channels are divided into a superior circulation channel and an inferior circulation channel, and the air outlet of the superior circulation channel is communicated with the intake port of the inferior circulation channel; the air outlet of the last-stage circulation channel is communicated with the low-pressure refrigerant gas storage chamber.

[0051] The high-pressure air flow output by the high-pressure refrigerant gas storage tank first flows through the circulation channel called the superior circulation channel, and the circulation channel it flows through later is called the inferior circulation channel.

[0052] The appellation can be relative. For example, the inferior circulation channel of a superior circulation channel can be the superior circulation channel of an even lower-level inferior circulation channel.

[0053] The intake port of the superior circulation channel is connected to the high-pressure liquid in the high-pressure cold source gas storage tank, and the liquid that can evaporate enters the superior circulation channel to drive the movable device to do work.

[0054] The gas with residual pressure after doing work enters the inferior circulation channel to continue driving the movable device in the inferior circulation channel to do work again. Until after the movable device in the last-stage circulation channel does work, the low-pressure gaseous refrigerant returns to the low-pressure refrigerant gas storage chamber.

[0055] This design enables the high-pressure refrigerant to do work multiple times through at least two circulation channels, avoiding waste of energy and generating more electric energy.

[0056] In addition, since multiple circulating channels are connected in series, the air pressure at the air outlet of the upper-level circulating channel can be increased, thereby reducing the pressure between the air inlet and the air outlet of the upper-level circulating channel. For the situation where the air source output pressure is very high, the above design can avoid the impact of high pressure difference and protect the safety of the equipment. The equipment can operate well without setting other complex pressure relief devices or strength enhancement components.

[0057] Benefits are brought in terms of energy conversion rate, safe and stable operation of the equipment, cost reduction, etc.

[0058] Furthermore, the low-pressure refrigerant gas storage chamber includes an underground cave and an airtight structure arranged in the underground cave; the airtight structure adopts a concrete layer; the inner wall of the airtight structure is coated with a sealing layer.

[0059] In the above design, the low-pressure refrigerant gas storage chamber can be rebuilt by using an underground cave, such as an abandoned mine, an oil and gas field cavity, etc. as an airtight structure. The airtight structure is surrounded by a concrete layer to form a sealed space. Its beneficial effect is that the underground cave has the characteristic of a large volume. Since it contains low-pressure refrigerant gas, the low-pressure refrigerant gas storage chamber does not need to consider the pressure resistance problem. Only the airtightness construction needs to be done. A sealing layer can be coated on the inner wall of the airtight structure. Therefore, it has the beneficial effect of low construction cost.

[0060] For further optimization, the bottom of the underground cave of the low-pressure refrigerant gas storage chamber is more than 30 m below the ground surface.

[0061] More than 30 m below the ground surface, the seasonal temperature changes on the ground surface are difficult to affect this depth. Therefore, at this depth, it is a constant temperature zone with a constant temperature, which is beneficial to the storage of low-pressure refrigerant gas.

[0062] For further optimization, the sealing layer adopts a nano-scale silicone polymer coating, and the thickness of the coating is 7 - 12 μm.

[0063] After the nano-scale silicone polymer coating reaches a thickness of 7 - 12 μm, it has an excellent airtight effect. At a pressure of 0.5 MPa, the gas permeability is below 1 nD, and at a pressure of 4 MPa, the gas permeability is 4.5×10 -6 -5.5×10 -6 mD. Therefore, it can store refrigerant gas very well and will not cause the refrigerant gas to leak out of the gas storage chamber rebuilt from the underground cave.

[0064] Furthermore, the high-pressure refrigerant gas storage tank adopts a gas storage tank with a pressure resistance of 8 - 12 Mpa.

[0065] The high-pressure refrigerant gas storage tank is used to store pentafluoropropane in a high-pressure liquefied state. The critical pressure of pentafluoropropane is 8-12 Mpa. Therefore, for the safety of high-pressure refrigerant storage, the pressure resistance of the gas storage tank needs to exceed the critical pressure of pentafluoropropane.

[0066] The pressure of 8-12 Mpa is between medium pressure and high pressure. Therefore, compared with the 20 Mpa pressure of the high-pressure refrigerant in air energy storage, the tank shell for storing high-pressure refrigerant can be designed with lighter weight, which is easy to control safety and can save the construction cost of high-pressure tanks.

[0067] The utility model uses compressed refrigerant as a high-pressure gas source to drive a movable device to move cyclically in a circulation channel. A generator is installed on the movable device, and the rotor of the generator is linked to a rolling device. The rolling device directly or indirectly abuts against the inner wall of the circulation channel. When the movable device moves, it drives the rolling device to roll by frictional contact with the inner wall of the circulation channel to generate electricity. The beneficial effects of the utility model are as follows:

[0068] 1. Compared with the traditional structure that uses aerodynamic force to push a piston, this design has higher energy conversion efficiency because there is no energy waste caused by deceleration or reverse movement for reset.

[0069] 2. Since there is no need for reverse movement for reset, it is allowed to build larger equipment, and a system with a gas accommodation space thousands or even tens of thousands of times larger than that of a piston cylinder can be manufactured at a relatively low cost.

[0070] 3. It is allowed to output more energy than the piston cylinder structure under the condition of a lower moving speed of the movable device.

[0071] 4. The moving speed of the movable device is allowed to be lower, so the requirement for the precision of the structure is lower than that of the piston cylinder structure, which is more conducive to production, has lower production costs, and is also more stable and reliable in operation.

[0072] 5. Since there is no problem of changing the moving direction of the piston, problems such as noise and wear during operation are smaller.

[0073] 6. Compared with various expanders or turbines, this design has a simple structure and is convenient for maintenance. Description of the Drawings

[0074] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0075] Figure 1Schematic diagram of the docking of a channel - type power generation system built into a high - pressure refrigerant storage tank, a low - pressure refrigerant storage chamber, and a generator

[0076] Figure 2 Perspective schematic diagram of the overall structure of a pipeline - type power generation system built into a generator

[0077] Figure 3 Schematic diagram of the structure of a movable device

[0078] Figure 4 Diagram of the linkage relationship of mechanical keys

[0079] Symbol description:

[0080] a, movable device; a1, generator; a2, speed - change system; a3, rolling device; a4, air - blocking structure; a5, flexible seal; a6, strip - shaped conductor; 1, low - pressure refrigerant storage chamber; 2, high - pressure refrigerant storage tank; 3, circulation channel; 4, valve; 5, air inlet; 6, air outlet; 7, oil - coating component Specific implementation manners

[0081] To make the above - mentioned objects, features, and advantages of the present utility model more comprehensible, the specific implementation manners of the present utility model will be described in detail below in conjunction with the accompanying drawings of the specification

[0082] In the following description, many specific details are set forth to facilitate a full understanding of the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below

[0083] Secondly, the present utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present utility model, for the sake of convenience of explanation, the cross - sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present utility model herein. In addition, in actual production, three - dimensional spatial dimensions including length, width, and depth should be included

[0084] Furthermore, the so - called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an independent or selectively mutually exclusive embodiment with other embodiments

[0085] Refer to Figure 1 、 Figure 2 、 Figure 3As shown in the figure, an air energy replenishing power generation system applicable to a refrigerant energy storage system includes a refrigerant energy storage system. The refrigerant energy storage system has a low-pressure refrigerant gas storage chamber 1 and a high-pressure refrigerant gas storage tank 2, and also includes a channel-type power generation system built into a generator a1;

[0086] The channel-type power generation system built into the generator a1 includes a circulation channel 3, and an air inlet 5 and an air outlet 6 are provided on the circulation channel 3;

[0087] The high-pressure refrigerant gas storage tank 2 is connected to the air inlet 5 of the circulation channel 3 through a valve 4;

[0088] The air outlet 6 of the circulation channel 3 is connected to the low-pressure refrigerant gas storage chamber 1;

[0089] Between the air inlet 5 and the air outlet 6, a valve 4 is also provided. After the valve 4 is closed, it obstructs the air flow from the air inlet 5 to the air outlet 6, and it is a valve 4 for controlling the gas flow;

[0090] An active device a that is allowed to move cyclically in the circulation channel 3 is also provided in the circulation channel 3. The active device a has a structure that blocks the air flow in the circulation channel 3;

[0091] The opening shape of the valve 4 in the conducting state is a shape that allows the active device a to pass through;

[0092] An energy output mechanism for outputting the energy of the active device a out of the circulation channel 3 is also provided;

[0093] The energy output mechanism includes a power generation system provided on the active device a and a power transmission mechanism for outputting electric energy through the circulation channel 3;

[0094] The power generation system on the active device a includes a generator a1 and a rolling device a3 linked to the rotor of the generator a1. The rolling device a3 directly or indirectly abuts against the inner wall of the circulation channel 3;

[0095] The electric energy output terminal of the generator a1 is connected to the power transmission mechanism.

[0096] In this embodiment, the high-pressure refrigerant gas storage tank 2 in the refrigerant energy storage system is used as the gas source power. The high-pressure gas power is used to push the active device a to move cyclically in the circulation channel 3. The way that the electric energy output terminal of the generator a1 is connected to the power transmission mechanism can be through a wire connection or through electromagnetic induction connection.

[0097] Compared with the traditional structure that uses aerodynamic force to push the piston, this design has a higher energy conversion rate because there is no energy waste in deceleration or reverse movement for reset. Moreover, the channel-type power generation system built into the generator a1 is applicable to both gaseous and liquid sources of propulsion. The high-pressure refrigerant released from the high-pressure refrigerant storage tank 2 is directly connected to the intake port 5 of the circulation channel 3, and the vaporization and expansion of the liquid refrigerant in the circulation channel 3 do work to push the movable device a to generate electricity.

[0098] Metal fins are provided on the outer wall of the circulation channel 3, and a fan is used to direct the surrounding air towards the metal fins. Its function is to gather the heat in the surrounding air towards the circulation channel 3 to replenish energy for the high-pressure refrigerant in the circulation channel 3.

[0099] During the expansion process of the high-pressure refrigerant in the circulation channel 3, it will become cold, reducing the kinetic energy output. Therefore, it is necessary to replenish energy from the air to heat up the high-pressure refrigerant in the circulation channel 3 with the heat in the air, improve the expansion force, and thus increase the kinetic energy output power.

[0100] The above design can eliminate auxiliary heating and expansion devices such as heat storage systems and reheaters, saving construction costs.

[0101] In addition, since there is no need for reverse movement for reset, it is allowed to build larger equipment, and a system with a gas accommodation space thousands or even tens of thousands of times larger than that of a piston cylinder can be manufactured at a relatively low cost. Moreover, it is allowed to output more energy than the piston cylinder structure when the movable device a moves at a lower speed.

[0102] Since the movement speed of the movable device a is allowed to be lower, the requirement for the precision of the structural configuration is lower than that of the piston cylinder structure, which is more conducive to production, has lower production costs, and is also more stable and reliable in operation.

[0103] In addition, since there is no problem of changing the movement direction of the piston, problems such as noise and wear during operation are smaller.

[0104] The specific usage method of the channel-type power generation system built into the generator a1 is as follows:

[0105] The high-pressure refrigerant enters the circulation channel 3 from the intake port 5. The movable device a moves cyclically in the circulation channel 3 under the push of the high-pressure refrigerant, and then drives the rolling device a3 to move. The rolling device a3 rolls because it directly or indirectly abuts against the inner wall of the circulation channel 3.

[0106] The rotor of the generator a1 is linked with the rolling device a3. Therefore, the rolling of the rolling device a3 drives the rotor of the generator a1 to rotate, and then generates electricity. The generated electric energy is output to the outside through the conductive power transmission mechanism.

[0107] In the above design, the generator a1 is creatively built into the circulation channel 3 through which the high-pressure refrigerant flows, and the generator a1 moves together with the movable device a to generate electricity dynamically.

[0108] In traditional designs, the generator a1 is fixed, and other power components are used to drive the rotor to rotate. In this design, the design of making the generator a1 move together with the movable device a (power component) is a completely different design concept.

[0109] In traditional designs, those skilled in the art would think that the more stable the installation of the generator a1, the more conducive it is to stable operation, power output, maintenance, and the avoidance of energy waste.

[0110] However, the above design of this application overcomes the above technical prejudice, moves the generator a1, and achieves unexpected technical effects.

[0111] This design is applied in an aerodynamic power generation system and has the advantages of high conversion efficiency, stable performance, simple structure, and easy maintenance compared with air energy storage power generation systems in the forms of twin-screw expanders, twin-rotor expanders, scroll expanders, turbines, etc.

[0112] Furthermore, the generator a1 adopts at least one of a cage-type generator a1 and a piezoelectric generator a1.

[0113] In this design, the generator a1 adopts a cage-type generator a1 or a piezoelectric generator a1. Both of these two types of generators a1 have the characteristics of simple structure and easy manufacturing. Therefore, the generator a1 is small in size, light in weight, and has good starting performance and a high starting success rate. It is suitable for being driven by compressed refrigerant with a high pressure of only 8 - 12 Mpa to generate electricity, and these two types of generators a1 can adapt to high-temperature environments and avoid high-temperature demagnetization.

[0114] Furthermore, an airtight pipeline is provided between the air outlet 6 and the valve 4. After at least a part of the movable device a enters the airtight pipeline, an airtight cavity is formed between the air outlet 6 and the valve 4;

[0115] During the movement of the movable device a, the space of the airtight cavity is compressed, and the valve 4 is pushed open by the air pressure.

[0116] In this design, the valve 4 is a one-way conduction valve 4, and the conduction direction is from the air outlet 6 towards the air inlet 5. When the moving device a crosses the air outlet 6 and enters the airtight pipeline provided between the air outlet 6 and the valve 4, under the action of at least one of inertia, gravity, magnetic force or other forces, during the forward movement of the moving device a, the gas in this section of the pipeline is compressed. The compressed gas generates air pressure, and this air pressure partially opens or fully opens the one-way valve 4. Even if the one-way valve 4 is partially opened, it can greatly reduce the impact force when the moving device a further opens the one-way valve 4 by impact; if the air pressure can fully open the one-way valve 4, it can weaken or even avoid the impact force when passing through the one-way valve 4.

[0117] When the moving device a runs to the one-way valve 4, it pushes open the one-way valve 4 and passes through.

[0118] Another embodiment of the valve 4:

[0119] The valve 4 can also be a mechanically linked valve 4. A mechanical button is set on the running track of the moving device a, and the mechanical button is linked with the valve 4; when the moving device a squeezes the mechanical button during operation, the valve 4 opens.

[0120] The mechanical button can be set at the position between the air outlet 6 and the valve 4. So that when the moving device a is close enough to the valve 4, the valve 4 can be opened, and the reverse flow of air is avoided as much as possible to cause energy waste.

[0121] The mechanical button can also be set at a position not greater than one-tenth of the length of the circulation channel 3 behind the air outlet 6. Trigger the mechanical button before reaching the air outlet 6, so as to have sufficient speed inertia and air flow power to drive and generate enough force to drive the mechanical button.

[0122] Refer to Figure 4 As shown, the distance between the mechanical button and the valve 4 is not greater than the length of the moving device a. To ensure that when the end of the moving device a leaves the mechanical button, the front end is already below the valve 4 and can hold the valve 4 to avoid resetting before the moving device a passes through. Especially to avoid slipping.

[0123] The mechanical button is set on the upper part of the circulation channel 3, and the valve 4 is a valve 4 that slides up and down.

[0124] This design facilitates the reset of the mechanical button and the valve 4 by gravity, improves the reliability of operation, and reduces components.

[0125] In addition, because the mechanical button is set on the upper part, it can effectively reduce or avoid the jitter generated when the moving device a passes through.

[0126] Furthermore, in front of the valve 4, there is another mechanical button, and the other mechanical button is linked with the valve 4; during the operation of the movable device a, after passing through the valve 4, when the other mechanical button is pressed, the valve 4 closes, blocking the gas at the air inlet 5 from flowing through the valve 4 to the air outlet 6.

[0127] Further, there is also a lubricating oil supply system. The lubricating oil supply system includes an oil storage device, the oil storage device is connected to an oil supply pipeline, and the oil supply pipeline is connected to an oiling component 7 for applying lubricating oil; the opening of the oiling component 7 is communicated with the channel of the circulation channel 3; the oiling component 7 is arranged in the channel of the circulation channel 3.

[0128] In this embodiment, when the movable device a passes through the oiling component 7, the movable device a can be oiled to reduce the friction. Because the oiling component 7 is arranged in the channel, oiling can be carried out during operation without stopping the machine.

[0129] When the movable device a passes through the oiling component 7, the movable device a is oiled to form an oil seal, so that less air flow is lost from the side of the movable device a and the energy utilization efficiency is higher.

[0130] The oiling component 7 is preferably arranged between the air outlet 6 and the valve 4, avoiding the oiling component 7 from bearing high pressure or high-speed air flow, preventing the lubricating oil from being pushed back in the reverse direction, and also preventing the lubricating oil from being blown into the air flow, ensuring the oiling effect and avoiding waste of lubricating oil.

[0131] Another setting scheme of the oiling component 7 can be set above the position between the air outlet 6 and the valve 4, and the lubricating oil automatically slides down by gravity without the need for applying oil in all directions.

[0132] Alternatively, the lubricating oil supply system is provided with an electric control system for controlling whether to apply oil, and whether to apply oil is controlled through the electric control system.

[0133] Further, it also includes an intake air flow control system. The intake air flow control system includes a controlled air valve arranged between the air inlet 5 and the high-pressure gas source provided by the high-pressure refrigerant gas storage tank 2; it also includes a control circuit, the control circuit is controllably connected to the controlled air valve; there is also a pressure sensor for detecting the pressure in the circulation channel 3, and the control circuit is signal-connected to the pressure sensor.

[0134] It should be noted that the control circuit is mentioned many times in this design, mainly referring to a circuit system that realizes the required control functions, not limited to a specific component. The multiple control circuits mentioned in the patent can be a set of unified circuit systems or multiple relatively independent control circuits.

[0135] In this design, the control circuit is connected to a sensor for detecting the operating condition of an active device a. According to the information including the operating condition of the active device a, the intake air volume is controlled to enable the active device a to operate stably in a suitable state. The sensor for detecting the operating condition of the active device a can be a speed sensor, and the speed sensor can be implemented by an optical sensor or a Hall sensor.

[0136] There is also a pressure sensor for detecting the pressure in the circulation channel 3, and the control circuit is connected to the pressure sensor. The pressure sensor detects the pressure condition in the circulation channel 3, and according to the information including the operating condition of the active device a, the intake air volume is controlled to enable the active device a to operate stably in a suitable air pressure state.

[0137] During one cycle of the operation of the active device a, the intake air flow control system controls the controlled air valve. After supplying air to the intake port 5 for a period of time, the controlled air valve is throttled or closed to restrict the intake port 5.

[0138] After the active device a passes through the valve 4, the controlled air valve is reopened to supply air to the intake port 5.

[0139] So that the gas can expand and do work fully within one cycle.

[0140] For example, if the pressure at the intake port 5 is 10 mp and continuous air supply is carried out, the pressure at the outlet port 6 may be 7 mp on average.

[0141] After adopting the intermittent air supply in the present invention, although the pressure at the intake port 5 is 10 mp, only air is supplied in the previous period and then it is throttled later. The pressure at the outlet port 6 may be 1 mp on average or even smaller.

[0142] Fully make the gas do work to obtain more electric energy.

[0143] Specific design:

[0144] (1) Air-blocking structure a4

[0145] The structure for blocking the air flow on the active device a adopts an air-blocking structure a4.

[0146] The air-blocking structure a4 can be a sheet-like or columnar structure.

[0147] A flexible seal a5 is arranged around the air-blocking structure a4.

[0148] The flexible seal a5 abuts against the inner wall of the circulation channel 3.

[0149] The flexible seal a5 can be a sealing strip or a flexible sheet.

[0150] Preferably, it is a flexible rubber sheet.

[0151] The air-blocking structure a4 is preferably a metal plate.

[0152] Specifically preferably, the structure on the movable device a that blocks the air flow uses a metal plate, and the metal plate is provided with a flexible rubber sheet that extends beyond the edge of the metal plate and has an outward tension.

[0153] The rubber sheet abuts against the inner wall of the circulation channel 3 to ensure airtightness. Compared with the sealing strip, the rubber sheet is easier to set a longer width and has more redundancy after wear.

[0154] The metal plate has the advantages of strong compressive capacity and not being easily aged.

[0155] Using the air-blocking structure a4 to block the air flow and obtain thrust, compared with using an integral metal block, magnet block, or other block structures such as pistons, it has the advantages of lighter mass, lower cost, smaller inertia, and being easier to shape.

[0156] (2) Rolling device a3

[0157] The rolling device a3 linked to the rotor of the generator a1 uses at least one of a roller and a gear.

[0158] A track with resistance is provided on the inner wall of the circulation channel 3, and the rolling device a3 abuts against the track.

[0159] By increasing the resistance, the rolling device a3 generates more force and more rolling, thereby completing more energy conversion.

[0160] Specifically preferably, the rolling device a3 uses a gear, and a rack meshing with the gear is provided on the inner wall of the circulation channel 3. The rack is used as the track.

[0161] The meshing structure of the gear can withstand and output greater force and has the characteristic of high energy output.

[0162] The rack is provided on the side wall inside the circulation channel 3.

[0163] For the arc-shaped structure of the circulation channel 3, both the side closer to the arc center and the side farther from the arc center are side walls.

[0164] It is provided on the side wall to avoid problems such as different radii and different tooth pitches on both sides of the rack due to the arc-shaped structure of the circulation channel 3. It also avoids the complexity of using bevel gears for the gear.

[0165] (3) Energy output mechanism

[0166] The energy output mechanism includes a power generation system disposed on the movable device a. The power output port of the generator a1 in the power generation system is connected with at least two contact heads;

[0167] A power transmission mechanism is disposed in the circulation channel 3;

[0168] The power output port is movably connected to the power transmission mechanism through at least two contact heads.

[0169] It is ensured that during the movement of the power generation system, current can be transmitted to the power transmission mechanism.

[0170] Furthermore, preferably, the power transmission mechanism is a strip-shaped conductor a6 disposed on the inner wall of the circulation channel 3.

[0171] The strip-shaped conductor a6 can be connected to the outside through one of the openings of the air inlet 5 and the air outlet 6 to output electric energy to the outside.

[0172] Avoid connecting to the outside through an additional opening.

[0173] The strip-shaped conductor a6 can be a copper conductor strip disposed in the circulation channel 3.

[0174] (4) Circulation channel 3

[0175] The circulation channel 3 is preferably set as a horizontally placed circulation channel 3.

[0176] So that the movable device a can move on a relatively horizontal plane.

[0177] Reduce the design difficulty and improve the stability during the movement of the system.

[0178] An opening is provided above the circulation channel 3, and the opening is sealed by a detachable cover plate.

[0179] Allowing an opening to be provided above the circulation channel 3, on the one hand, can reduce the production difficulty, and on the other hand, is easy for future maintenance.

[0180] At least two contact heads connected to the power output port of the generator a1 are disposed below the movable device a;

[0181] At least two strip-shaped conductors a6 of the power transmission mechanism are disposed below the inner wall of the circulation channel 3;

[0182] At least two contact heads respectively press on at least two strip-shaped conductors a6 to achieve conduction.

[0183] In the above design, the pressing of the contact head and the strip-shaped conductor a6 is achieved by gravity, which has the characteristics of high stability and simple structure.

[0184] At least two contacts, and rolling contacts can be adopted to reduce friction and avoid wear.

[0185] The rolling contacts can adopt at least one of a roller, a ball, and a roller shaft.

[0186] Moving device a

[0187] At least one slide plate structure is provided below the moving device a, and at least 5 cm of the slide plate structure is in contact with the bottom of the circulation channel 3 in the front-rear direction.

[0188] When the moving device a passes through the valve 4, the slide plate structure can effectively reduce vibration and make the operation smooth, and can effectively protect the generator a1.

[0189] The contacts can be arranged on the slide plate structure, and the contact points of the contacts are below the slide plate mechanism to simplify the structure, reduce costs and improve stability.

[0190] The generator a1 is connected to the rolling device a3 through a speed change system a2 to make the force smooth and reasonable.

[0191] After passing through the air outlet 6, the moving device a will lose some thrust of the air flow. The generator a1 can use the inertia of the rotor to output power to the rolling device a3 to continue to push the moving device a and smoothly pass through the valve 4.

[0192] The speed change system a2 adopts a speed change system a2 with an adjustable speed ratio. At startup, the speed ratio is reduced to reduce the thrust required for startup, so as to reduce the thrust required for startup, make the startup smooth, and can protect the internal stressed components.

[0193] After startup, when the speed of the moving device a exceeds the set value, the speed ratio is increased to increase the rotation speed of the generator a1 and increase the resistance. This can not only increase the power output, but also reduce the speed of the moving device a to ensure performance and protect the equipment.

[0194] A control circuit can be set up. The control circuit is connected to a sensor (which can be an optical sensor, a Hall sensor, etc.) for detecting the operating speed of the control circuit. When the sensor detects that the moving device a is lower than a set speed, the control circuit reduces the speed ratio; when the sensor detects that the moving device a is higher than a set speed, the control circuit increases the speed ratio.

[0195] So as to timely and automatically adjust the power output efficiency and the operating speed of the moving device a, make the operation smooth, protect the internal stressed components, and improve the power generation efficiency.

[0196] The inner wall of the circulation channel 3 can be a circular tubular structure with a circular or elliptical cross-section, or a polygonal tubular structure with a triangular or quadrilateral cross-section. When it is a polygonal tubular structure, it is preferred that the joints of each side are connected by an arc.

[0197] The circulation channel 3 allows access to the valve 4 structure through a connection section other than itself, facilitating the independent production of the valve 4 structure. It is easy to reduce the production difficulty through modularization, and is structurally simpler, easier to maintain and repair.

[0198] Specific embodiments of the circulation channel 3:

[0199] The circulation channel 3 is preferably a pipeline made of a rigid material with airtightness.

[0200] The pipeline wall of the circulation channel 3 can adopt a single material structure or a combined material structure of materials such as metal, glass, ceramic, cement, sintered brick, glass fiber, plastic, etc.

[0201] The pipeline wall is preferably a pipeline wall made of glass material. The pipeline wall made of glass material has the advantages of being easy to install an optical induction sensor, strong impact resistance, easy to observe the internal operation state, easy to detect faults, corrosion resistance, etc., and can be applied to a corrosive gas environment.

[0202] The pipeline wall is preferably a pipeline wall made of Teflon material. This kind of pipeline wall has the advantages of being easy to form, easy to set complex structures, low production cost, strong impact resistance, and strong corrosion resistance.

[0203] Even more preferably, a pipeline wall made of a metal material is adopted to heat the gas flowing inside under the action of a changing magnetic field.

[0204] Particularly preferably, it is a pipeline wall made of at least one of stainless steel and aluminum alloy that does not attract to a permanent magnet.

[0205] Preferably, the circulation channel 3 adopts a pipeline wall made of a metal material, and heat sinks are connected to the pipeline wall made of the metal material. It has the characteristics of simple structure and high heat exchange efficiency. It can also be equipped with an external air flow exchange system to promote the external air flow to pass through the heat dissipation device and promote heat exchange.

[0206] The pipeline wall of the circulation channel 3 can adopt a pipeline wall with a composite structure. The pipeline wall includes a wall body and an airtight, smooth, and rigid attachment layer attached to the inner wall of the wall body.

[0207] When the volume of the circulation channel 3 is relatively large, using a material with high airtightness, high smoothness, and high hardness throughout will result in a relatively high cost.

[0208] In the above design, the attachment layer structure is adopted, allowing the wall body to use a material with a lower cost to play a supporting and protecting role, while the relatively thin attachment layer can use a material with high airtightness, high smoothness, and high hardness and a higher cost. This not only ensures that the movable device a operates in a high-airtight environment with low friction, but also greatly reduces the production cost.

[0209] The adhering layer may adopt a pipe wall made of stainless steel, aluminum alloy, glass material, alumina material, or other materials with high airtightness, high smoothness, and high hardness.

[0210] For the pipe wall of the large circulation channel 3, it is preferably a pipe wall with a composite structure.

[0211] Preferably, the pipe wall includes a wall body, and the wall body is made of at least one of glass fiber, plastic, ceramic, cement, and sintered brick; a silica material layer is adhered inside the wall body.

[0212] Other chemical components are allowed to be added to the silica material to improve the performance. The silica material layer can be an enamel layer or a glass layer.

[0213] More preferably: the pipe wall includes a wall body, the wall body includes a matrix composed of at least one of ceramic, cement, and sintered brick, a plastic layer is laid on the inner side of the matrix, and a glass layer is adhered on the inner side of the plastic layer.

[0214] The above matrix is easy to be integrally shaped to provide a framework support and shaping convenient for on-site construction, the plastic layer provides an airtight layer with anti-aging and anti-impact properties, and the glass layer provides a contact surface with anti-impact and low friction.

[0215] The matrix can provide high-strength structural support at low cost and with low processing difficulty. The plastic layer is adhered to the matrix and is easy to be shaped. Because the plastic layer plays a buffering and airtight role, the glass layer can be allowed to no longer have airtightness, and in the manufacturing process, the glass layer can be formed by relatively simple splicing of glass sheets. On the premise of ensuring performance, the production difficulty and production cost are greatly reduced.

[0216] The plastic layer is preferably a Teflon layer, and the glass layer is preferably a glass layer spliced by tempered glass sheets.

[0217] This kind of pipe wall adopting a Teflon layer has the advantages of being easy to be formed, easy to set complex structures, low production cost, strong anti-impact ability, strong anti-corrosion performance, etc. Moreover, the glass layer is a glass layer spliced by tempered glass sheets, which is more easy to be adhered to the complex structure of the Teflon layer.

[0218] The above design not only solves the problem that it is difficult to construct on-site for large power generation equipment, but also reduces the cost and ensures the system performance.

[0219] The circulation channel 3 may adopt a pipe wall with an integral structure or a pipe wall with a combined structure.

[0220] The circulation channel 3 includes two parts, one part is the lower pipe body located below, and the other part is the upper pipe body located above; the upper pipe body is buckled downward on the upper part of the lower pipe body to surround and form a pipe cavity inside the circulation channel 3.

[0221] Adopting a split combined structure, when manufacturing a large-scale power generation system, it has the advantages of low manufacturing cost, simple installation, easy debugging, and easy maintenance.

[0222] In production, it can be that first, the pipe wall of the lower pipe body or the upper pipe body is produced, then the material for generating the adhesion layer is coated inside the pipe wall, and then the generation process of the adhesion layer is carried out.

[0223] For example, coat the glaze layer, glass layer, or the generation material of other layers, and then sinter to generate a hard adhesion layer.

[0224] In this process, because of the split structure of the lower pipe body and the upper pipe body, it provides great convenience for the coating work and the sintering work.

[0225] In actual production, the circulation channel 3 can naturally also be disassembled into two parts on the left and right. However, in this design, only the up-and-down disassembly method is adopted. This method can effectively ensure the smoothness and firmness of the bottom layer, thereby improving the operating performance and power generation efficiency.

[0226] Another specific embodiment of the circulation channel 3:

[0227] The circulation channel 3 can adopt an annular pipe.

[0228] The annular shape of the circulation channel 3 is not limited to the standard circular ring structure. In addition to the circular ring structure, it can also be an elliptical annular structure, or an annular structure composed of a combination of some linear structures and arc structures.

[0229] The circulation channel 3 allows the valve 4 structure to be connected through a connection section outside itself. The annular pipe can be not closed by itself, but completed to be closed through other auxiliary components, so that the movable device a can move in a cycle.

[0230] Furthermore, at least two circulation channels 3 are provided; movable devices a are respectively provided in at least two circulation channels 3; at least two circulation channels 3 are divided into a superior circulation channel 3 and a secondary circulation channel 3, and the air outlet 6 of the superior circulation channel 3 is communicated with the air inlet 5 of the secondary circulation channel 3; the air outlet 6 of the final-stage circulation channel 3 is communicated to the low-pressure refrigerant gas storage chamber 1.

[0231] The high-pressure air flow output by the high-pressure refrigerant gas storage tank 2, the circulation channel 3 that it first flows through is called the superior circulation channel 3, and the circulation channel 3 that it flows through later is called the inferior circulation channel 3.

[0232] The appellation can be relative. For example, the inferior circulation channel 3 of a superior circulation channel 3 can be the superior circulation channel 3 of the inferior circulation channel 3 at a lower level.

[0233] The air inlet 5 of the upper circulation channel 3 is connected to the high-pressure liquid in the high-pressure cold source gas storage tank, and the evaporated liquid enters the upper circulation channel 3 to push the movable device a to do work;

[0234] The gas with residual pressure after doing work enters the secondary circulation channel 3, and continues to push the active device a in the secondary circulation channel 3 to do work again, until the active device a in the last level circulation channel 3 works, and the low-pressure gaseous refrigerant returns to the low-pressure refrigerant storage chamber 1.

[0235] This design allows the high-pressure refrigerant to perform work multiple times through at least two circulation channels 3, thereby avoiding energy waste and generating more electrical energy.

[0236] In addition, since multiple circulation channels 3 are connected in series, the air pressure at the air outlet 6 of the upper circulation channel 3 can be increased, thereby reducing the pressure between the air inlet 5 and the air outlet 6 of the upper circulation channel 3. For the situation where the output pressure of the gas source is very high, the above design can avoid the impact of high pressure difference and protect the safety of the equipment. The equipment can operate well without setting other complicated pressure relief devices or strength-enhancing components.

[0237] It brings benefits in terms of energy conversion rate, safe and stable operation of equipment, and cost reduction.

[0238] Furthermore, the low-pressure refrigerant storage chamber 1 includes an underground cave and an airtight structure arranged in the underground cave; the airtight structure adopts a concrete layer; and the inner wall of the airtight structure is coated with a sealing layer.

[0239] In the above design, the low-pressure refrigerant storage chamber 1 can be converted into an airtight structure by utilizing underground caves, such as abandoned mines, oil and gas field cavities, etc. The airtight structure is surrounded by a concrete layer to form a sealed space. The beneficial effect is that the underground cave has the characteristic of large volume. Because it contains low-pressure refrigerant gas, the low-pressure refrigerant storage chamber 1 does not need to consider the pressure resistance problem, but only needs to be airtightly constructed. A sealing layer can be coated on the inner wall of the airtight structure, so it has the beneficial effect of low construction cost.

[0240] Further optimization is performed, and the bottom of the underground cave of the low-pressure refrigerant storage chamber 1 is below 30 m from the ground.

[0241] Below 30m from the ground, the seasonal temperature changes on the surface are unlikely to affect this depth, so this depth is a constant temperature zone, which is conducive to the storage of low-pressure refrigerant gas.

[0242] For further optimization, the sealing layer adopts nano-scale organic silicon polymer coating, and the thickness of the coating is 7 to 12 μm.

[0243] After the coating of the nano-scale silicone polymer coating reaches 7 - 12 μm, it has an excellent airtight effect. At a pressure of 0.5 MPa, the gas permeability is below 1 nD, and at a pressure of 4 MPa, the gas permeability is 4.5×10 -6 -5.5×10 -6 mD. Therefore, it can store refrigerant gas extremely well and will not cause the refrigerant gas to leak out in the gas storage chamber rebuilt from an underground cave.

[0244] Furthermore, the high-pressure refrigerant gas storage tank 2 uses a gas storage tank with a pressure resistance of 8 - 12 Mpa.

[0245] The high-pressure refrigerant gas storage tank 2 is a gas storage tank for storing pentafluoropropane in a high-pressure liquefied state. The critical pressure of pentafluoropropane is 8 - 12 Mpa. Therefore, for the safety of high-pressure refrigerant storage, the pressure resistance of the gas storage tank needs to exceed the critical pressure of pentafluoropropane.

[0246] The pressure of 8 - 12 Mpa is between medium pressure and high pressure. Therefore, compared with the pressure of 20 Mpa of high-pressure refrigerant in air energy storage, the tank shell for storing high-pressure refrigerant can be designed with lighter weight, which is easy to control safety and can also save the construction cost of high-pressure tanks.

[0247] In addition, to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described, that is, those features that are not relevant to the best mode of the present invention or those features that are not relevant to implementing the present invention.

[0248] It should be understood that during the development of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, the development efforts will be a routine task of design, manufacturing, and production.

[0249] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An air energy replenishment power generation system suitable for a refrigerant energy storage system, comprising a refrigerant energy storage system, the refrigerant energy storage system having a low-pressure refrigerant gas storage chamber and a high-pressure refrigerant gas storage tank, characterized in that: Also included is a channel-type power generation system with a generator built in; The channel-type power generation system built into the generator includes a circulation channel, and an air inlet and an air outlet are arranged on the circulation channel; The high-pressure refrigerant gas storage tank is connected to the air inlet of the circulation channel through a valve; The air outlet of the circulation channel is connected to the low-pressure refrigerant gas storage chamber; A valve is also provided between the air inlet and the air outlet. When the valve is closed, it blocks the air flow from the air inlet to the air outlet, and is a valve for controlling the flow of gas. The opening shape of the valve when it is in the on state is the shape that allows the moving device to pass through; A movable device is also provided in the circulation channel to allow circulation and movement in the circulation channel, and the movable device has a structure to block the airflow from flowing in the circulation channel; The outer wall of the circulation channel is provided with metal fins, and a fan facing the metal fins is also provided; An energy output mechanism is also provided to output the energy of the movable device to the circulation channel; The energy output mechanism includes a power generation system arranged on the movable device and a power transmission mechanism for outputting electric energy through a circulation channel; The power generation system on the movable device includes a generator and a rolling device linked to the rotor of the generator, the rolling device directly or indirectly abuts against the inner wall of the circulation channel; The electric energy output end of the generator is connected to the power transmission mechanism.

2. The air energy replenishment power generation system suitable for a refrigerant energy storage system according to claim 1, characterized in that: The generator adopts at least one of a cage generator and a piezoelectric generator.

3. The air energy replenishment power generation system suitable for a refrigerant energy storage system according to claim 1, characterized in that: An airtight pipe is provided between the air outlet and the valve, and after at least a part of the movable device enters the airtight pipe, an airtight cavity is formed between the air outlet and the valve; During the movement of the movable device, the space in the airtight cavity is compressed and the valve is pushed open by air pressure.

4. The air energy replenishment power generation system suitable for a refrigerant energy storage system according to claim 1, characterized in that: A lubricating oil supply system is also provided, the lubricating oil supply system includes an oil storage device, the oil storage device is connected to an oil supply pipeline, the oil supply pipeline is connected to an oiling component for applying lubricating oil; the opening of the oiling component is connected to the channel of the circulation channel; The oil coating member is disposed in the passage of the circulation passage.

5. The air energy replenishment power generation system suitable for a refrigerant energy storage system according to claim 1, characterized in that: Also included is an air intake air flow control system, which includes a controlled air valve disposed between the air intake and a high-pressure air source provided by a high-pressure refrigerant air storage tank; It also includes a control circuit, which controls the connected controlled gas valve; A pressure sensor for detecting the pressure in the circulation channel is also provided, and the control circuit signal is connected to the pressure sensor.

6. The air energy replenishment power generation system suitable for a refrigerant energy storage system according to claim 1, characterized in that: At least two circulation channels are provided; At least two circulation channels are respectively provided with movable devices; At least two circulation channels are divided into an upper circulation channel and a secondary circulation channel, and the air outlet of the upper circulation channel is connected to the air inlet of the secondary circulation channel; The air outlet of the final circulation channel is connected to the low-pressure refrigerant air storage chamber.

7. The air energy supplementary power generation system suitable for a refrigerant energy storage system according to claim 1, characterized in that: The low-pressure refrigerant gas storage chamber includes an underground cave and an airtight structure arranged in the underground cave; The airtight structure adopts a concrete layer; The inner wall of the airtight structure is coated with a sealing layer.

8. The air energy replenishment power generation system suitable for a refrigerant energy storage system according to claim 7, characterized in that: The bottom of the underground cave of the low-pressure refrigerant storage room is 30m below the ground.

9. The air energy supplementary power generation system suitable for a refrigerant energy storage system according to claim 7, characterized in that: The sealing layer adopts nano-scale organic silicon polymer coating, and the thickness of the coating is 7 to 12 μm.

10. The air energy supplementary power generation system suitable for a refrigerant energy storage system according to claim 1, characterized in that: The high-pressure refrigerant gas storage tank adopts a gas storage tank with a pressure resistance of 8 to 12Mpa.

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