Power plant waste recovery and energy production device based on hydraulic circulating pump and operation method

Abstract

The invention relates to a power plant waste recovery capacity device based on a hydraulic circulating pump, which comprises a third water tank, a second water tank, a first water tank and a water tank which are arranged from high to low, different pipelines are designed between the tanks and the water tank for communication, so that waste water is circulated, the water pump is used for starting during circulation, and a water turbine is used for generating power. The invention further relates to an operation method of the power plant waste recovery capacity device based on the hydraulic circulating pump, and the operation method is used for achieving waste water circulating power generation. By means of the power plant waste recovery and energy production device based on the hydraulic circulating pump and the operation method, the problems that waste of a power plant is simply discharged or treated, energy and water resources in the waste cannot be effectively recovered, the resource utilization rate of waste water and waste gas is low, the surrounding ecological environment is affected, and the energy consumption is low can be solved. The problems that the environmental protection burden of a power plant is increased, environmental pollution is caused, energy is lost, kinetic energy and heat energy cannot be effectively recycled and utilized, and the overall operation efficiency is reduced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy utilization, and in particular to a power plant waste material recovery and energy production device based on a hydraulic circulation pump and an operation method thereof. Background Art

[0002] As global energy demand continues to grow, power plants, as important energy production units, face the dual pressures of environmental protection and sustainable resource utilization. The waste generated during the power generation process includes a large amount of wastewater and waste gas. If not properly handled, it will not only cause serious pollution to the surrounding environment, but also waste precious water resources and energy.

[0003] In the existing technology, the waste of power plants is simply discharged or treated, and the energy and water resources therein are not effectively recovered. The resource utilization rate of wastewater and exhaust gas is low, which not only affects the surrounding ecological environment, increases the environmental burden of power plants, and causes environmental pollution problems, but also causes energy loss, and cannot effectively recover and utilize kinetic energy and thermal energy, thereby reducing the overall operating efficiency.

[0004] Therefore, the prior art has defects and needs to be improved and developed. Summary of the invention

[0005] The embodiment of the present invention provides a power plant waste recovery capacity generation device and an operation method based on a hydraulic circulation pump, which is used to solve the problem that in the prior art, the waste of power plants is simply discharged or treated, and the energy and water resources therein are not effectively recovered, and the resource utilization rate of wastewater and exhaust gas is low, which not only affects the surrounding ecological environment, increases the environmental burden of the power plant, and causes environmental pollution problems, but also causes energy loss, and cannot effectively recover and utilize kinetic energy and thermal energy, thereby reducing the overall operating efficiency.

[0006] According to a first aspect of an embodiment of the present invention, there is provided a power plant waste recovery and energy generation device based on a hydraulic circulation pump, comprising a third water pool, a second water pool, a first water pool and a water tank arranged from high to low; the water tank comprises a cover plate and a box body which are in an upper and lower structure and are airtightly spliced, the cover plate is in a prism shape, and the sides of the cover plate are defined to include a first side surface, a second side surface, a third side surface and a fourth side surface in a clockwise direction; a drain pipe with a control valve is connected to the bottom surface of the box body; the first water pool is fixed on the first side surface, and a seventh pipe is airtightly connected between the first water pool and the first side surface, one end of the seventh pipe is flush with the bottom surface of the first water pool, and the seventh pipe is connected to the bottom surface of the first water pool. The pipe surface of the other end of the seventh pipe is coplanar with the first side surface and is installed with a first filter screen, and the seventh pipe is also provided with a fourth valve; the second water tank and the fourth side surface are airtightly connected with a fourth pipe, one end of the fourth pipe is flush with the bottom surface of the second water tank, the pipe surface of the other end of the fourth pipe is coplanar with the fourth side surface and is installed with a second filter screen, and the fourth pipe is also provided with a second valve; the bottom of the second water tank is also airtightly connected with an eighth pipe, one end of the eighth pipe is flush with the bottom surface of the second water tank, the other end of the eighth pipe is installed with a turbine compartment, a turbine is installed in the turbine compartment, and the turbine compartment is located at the bottom of the second water tank. A sixth valve is further provided on the eighth pipe above the first water pool; the third water pool is funnel-shaped, and a second pipe is airtightly connected between the third water pool and the second side surface, one end of the second pipe is flush with the lowest point of the bottom surface of the third water pool, and the pipe surface of the other end of the second pipe is coplanar with the second side surface, a first valve is provided at one end of the second pipe close to the third water pool, and a third valve is provided at one end of the second pipe close to the second side surface; a third pipe is also connected between the third water pool and the upper surface of the cover plate, one end of the third pipe is located in the third water pool and higher than the highest point of the second pipe, and the The other end of the third pipe is air-tightly connected to the upper surface of the cover plate, and a fifth valve is provided at one end of the third pipe close to the upper surface; the first pipe is also air-tightly connected to the pool wall of the third water pool, one end of the first pipe is flush with the pool wall of the third water pool, and a water pump compartment is installed at the other end of the first pipe, a water pump is installed in the water pump compartment, and the water pump compartment is located above the second water pool; the third water pool is covered with a screen, the height of the screen is higher than the end of the third pipe located in the third water pool, and floating balls are piled up in the third water pool, and the size of the floating balls is larger than the mesh size of the screen, the first filter screen, and the second filter screen;The power plant is connected to the outside with a waste liquid pipe and a fifth pipe, the other end of the waste liquid pipe is located above the second water pool, the other end of the fifth pipe is airtightly connected to a gas storage tank, the gas storage tank and the second pipe are airtightly connected with a sixth pipe, the second pipe is provided with a first one-way valve, the second pipe is also provided with a second one-way valve, the second one-way valve is between the first valve and the third valve, and when the second one-way valve is opened, it is used to connect the inside and outside of the second pipe; the power plant is electrically connected to the water pump through a first cable, the first cable is used to supply power to the water pump, the power plant is electrically connected to the turbine through a second cable, and the second cable is used to transmit the electricity generated by the turbine back to the power plant. ;

[0007] Further, the height difference between the second water pool and the first water pool is defined as H, and the height difference between the third water pool and the second water pool is defined as h, wherein H and h are positive, and H>h.

[0008] Furthermore, an inspection opening is provided on the third side surface, and a rubber ring is sleeved on the outer contour of the inspection opening. When the inspection opening is closed, the rubber ring is used to seal the water tank.

[0009] Furthermore, the cover plate is a transparent cover plate.

[0010] Furthermore, a flow-decelerating plate is fixed at a position of the bottom surface of the first water pool directly facing the turbine chamber, and the flow-decelerating plate protrudes from the bottom surface of the first water pool.

[0011] Furthermore, the inner walls of the first water pool, the second water pool, and the third water pool, as well as the inner walls of the first pipe, the second pipe, the third pipe, the fourth pipe, the fifth pipe, the sixth pipe, the seventh pipe, the eighth pipe and the waste liquid pipe are all coated with at least one anti-corrosion layer.

[0012] Furthermore, the volume of the water tank is defined as Q, the volume of the first water pool is defined as X, the volume of the second water pool is defined as Y, and the volume of the third water pool is defined as Z, wherein Q, X, Y, and Z are all positive numbers, and Q ≥ X+Y+Z.

[0013] Furthermore, the float is at least one of a polyethylene float, a polypropylene float, and a polyvinyl fluoride float with a smooth and solid outer surface.

[0014] A second aspect of an embodiment of the present invention provides an operation method of a power plant waste recovery power generation device based on a hydraulic circulation pump, comprising:

[0015] Step 1: When the waste water discharged from the waste liquid pipe of the power plant collected in the second water tank reaches more than 80% of the volume of the second water tank, and the waste gas discharged from the fifth pipeline of the power plant collected in the gas storage tank reaches more than 80% of the volume of the gas storage tank, keep all valves closed and use a screen to cover the float:

[0016] Step 2: The power plant inputs electric energy to the water pump in the water pump compartment through the first cable, and the water pump pumps the wastewater in the second water tank to the third water tank along the first pipeline;

[0017] Step 3: When the water level of the third water pool overflows all the floats, the first valve is opened, and the wastewater sucks the floats to form a solid-liquid mixture that moves downward through the second pipe; when the solid-liquid mixture approaches the third valve, the third valve and the second valve are opened; under the action of gravity, the downward movement speed of the solid-liquid mixture increases continuously, and the floats are flushed into the water tank;

[0018] Step 4: When the float enters the water tank, the density of the float is lower than that of the waste liquid, and the float floats up and accumulates on the upper part of the water tank; because the float is solid, the volume occupied by the float in the water tank increases, and because the third water tank is higher than the second water tank, when the solid-liquid mixture continuously flows into the water tank, the waste water in the water tank is pressed and sent to the second water tank through the fourth pipe;

[0019] Step 5: When all the floats enter the water tank, the water pump stops working; the third valve, the second valve and the first valve are closed, and the fourth valve and the fifth valve are opened; the wastewater in the first water pool enters the water tank along the seventh pipe, and the water level of the water tank rises to squeeze the float along the third pipe into the third water pool; when the lowest surface of the float in the water tank is higher than the lowest surface of the seventh pipe, the fourth valve is closed;

[0020] Step 6: Open the third valve and the first one-way valve, flush the exhaust gas in the gas storage tank into the second pipe along the sixth pipe, and continue to squeeze the float along the third pipe into the third water pool by using air pressure and water weight, while lowering the water level in the third pipe; when the highest water level in the water tank reaches the lowest water level in the first water pool, close the third valve, the first one-way valve and the fifth valve, and then open the second one-way valve to release the pressure;

[0021] Step 7: Open the sixth valve, and the wastewater in the second water pool enters the turbine compartment along the eighth pipe, driving the turbine in the turbine compartment to increase production capacity, and transmitting the generated electric energy to the power plant along the second cable, completing the first cycle;

[0022] Step 8: The third water pool receives the floating balls from the circulation, and replenishes the number of floating balls until the number of floating balls in the third water pool is equal to the number of floating balls in the third water pool before the circulation;

[0023] Step nine: Repeat steps one to seven; after the volume of the gas circulated to the gas storage tank is less than 20% of the volume of the gas storage tank, perform another cycle, and then drain all the waste liquid in the first water pool, the second water pool and the third water pool into the water tank, and then drain it through the drain pipe of the water tank.

[0024] Furthermore, when the wastewater in the water tank is discharged through the drain pipe, the end of the drain pipe not connected to the water tank is also connected to at least one of four types of tank bodies including a sedimentation tank, a biological filter tank, an aeration tank, and an activated sludge tank, and the time for the wastewater to be discharged from the tank body is less than the time for the second water tank to recollect the wastewater to reach 80% of the volume of the second water tank, or the time for the wastewater to be discharged from the tank body is less than the time for the gas tank to recollect the waste gas to reach 80% of the volume of the gas tank.

[0025] Beneficial effects:

[0026] It can be seen from the above technical solutions that the present invention provides a power plant waste recovery capacity generation device and operation method based on a hydraulic circulation pump. By designing the first water tank, the second water tank and the third water tank of different heights, the waste liquid and waste gas from the power plant are treated by pipelines, and the waste liquid and waste gas are used and gravity factors and water flow dynamics are comprehensively considered to achieve power generation. This not only improves the resource utilization rate of waste water and waste gas, but also reduces the discharge amount of waste liquid and waste gas each time in the power generation cycle, thereby reducing the negative impact on the environment and helping power plants to achieve higher standards in environmental protection. At the same time, the anti-corrosion design prolongs the service life of the equipment and reduces maintenance costs, creating significant economic benefits for the power plant. This comprehensive innovative solution provides strong support for the sustainable development of the power generation industry.

[0027] It should be appreciated that all combinations of the foregoing concepts, as well as additional concepts described in greater detail below, may be considered to be part of the inventive subject matter of the present disclosure, provided such concepts are not mutually inconsistent.

[0028] The foregoing and other aspects, embodiments and features of the present invention can be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and / or beneficial effects of the exemplary embodiments, will be apparent from the following description or learned from the practice of the specific embodiments according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings are not drawn to scale. In the drawings, each identical or nearly identical component shown in various figures may be represented by the same reference numeral. For clarity, not every component is labeled in every figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein;

[0030] Figure 1 This is a third-perspective structural schematic diagram of a power plant waste recovery and energy generation device based on a hydraulic circulation pump in an embodiment of the present application.

[0031] Figure 2 This is a structural diagram of a power plant waste recovery energy generation device based on a hydraulic circulation pump connected to a power plant in an embodiment of the present application.

[0032] Figure 3 This is a diagram of the positions of wastewater and a float in a first state of a power plant waste recovery and energy generation device based on a hydraulic circulation pump in an embodiment of the present application.

[0033] Figure 4 This is a diagram of the positions of wastewater and a float in the second state of a power plant waste recovery and energy generation device based on a hydraulic circulation pump in an embodiment of the present application.

[0034] Figure 5 This is a diagram of the positions of wastewater and a float in the third state of a power plant waste recovery and energy generation device based on a hydraulic circulation pump in an embodiment of the present application.

[0035] Figure 6 This is a diagram of the positions of wastewater and float in the fourth state of a power plant waste recovery power generation device based on a hydraulic circulation pump in an embodiment of the present application.

[0036] Figure 7 This is a schematic diagram of the structure of a turbine compartment of a power plant waste recovery power generation device based on a hydraulic circulation pump in an embodiment of the present application.

[0037] Figure 8 This is a schematic diagram of the structure of a water pump compartment of a power plant waste recovery power generation device based on a hydraulic circulation pump in an embodiment of the present application.

[0038] Description of Figure Numbers:

[0039] Water tank 1; first water pool 2; turbine compartment 3; second water pool 4; water pump compartment 5; first pipeline 6; third water pool 7; second pipeline 8; third pipeline 9; fourth pipeline 10; fifth pipeline 11; first cable 12; power plant 13; second cable 14; first non-return valve 15; gas storage tank 16; sixth pipeline 17; second non-return valve 18; screen 19; first valve 20; second valve 21; third valve 22; fourth valve 23; fifth valve 24; sixth valve 25; water pump 26; turbine 27; float 28; seventh pipeline 29; eighth pipeline 30. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meaning understood by people with general skills in the field to which the present invention belongs.

[0041] The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "a", "an" or "the" and other similar words do not indicate a quantitative limitation, but indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" cover the features, wholes, steps, operations, elements and / or components listed after "include" or "comprise", and do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] In the prior art, since the waste from power plants is simply discharged or treated, the energy and water resources therein are not effectively recovered, and the resource utilization rate of wastewater and exhaust gas is low. This not only affects the surrounding ecological environment, increases the environmental burden of power plants, and causes environmental pollution problems, but also causes energy loss, and cannot effectively recover and utilize kinetic energy and thermal energy, thereby reducing the overall operating efficiency.

[0043] In view of this, an embodiment of the present invention provides a power plant waste recovery capacity generation device and an operation method based on a hydraulic circulation pump, aiming to improve processing efficiency, reduce environmental impact, improve resource utilization, and achieve a dual improvement in economic and environmental benefits through energy recovery.

[0044] In a first aspect of an embodiment of the present invention, there is provided a power plant waste material recovery and energy generation device based on a hydraulic circulation pump, referring to Figure 1 to Figure 6 , including a third water pool 7, a second water pool 4, a first water pool 2 and a water tank 1 arranged from high to low; the water tank 1 includes a cover plate and a box body that are airtightly spliced ​​in an upper and lower structure, the cover plate is prism-shaped, and the sides of the cover plate are defined to include a first side surface, a second side surface, a third side surface and a fourth side surface in a clockwise direction; the bottom surface of the box body is connected to a drain pipe with a control valve.

[0045] Reference Figure 1 The first water pool 2 is fixed on the first side surface, and a seventh pipe 29 is airtightly connected between the first water pool 2 and the first side surface. One end of the seventh pipe 29 is flush with the bottom surface of the first water pool 2, and the pipe surface of the other end of the seventh pipe 29 is coplanar with the first side surface and is installed with a first filter. A fourth valve 23 is also arranged on the seventh pipe 29.

[0046] The second water tank 4 and the fourth side surface are airtightly connected with a fourth pipe 10, one end of the fourth pipe 10 is flush with the bottom surface of the second water tank 4, the pipe surface of the other end of the fourth pipe 10 is coplanar with the fourth side surface and is installed with a second filter screen, and the fourth pipe 10 is also provided with a second valve 21; the bottom of the second water tank 4 is also airtightly connected with an eighth pipe 30, one end of the eighth pipe 30 is flush with the bottom surface of the second water tank 4, and the other end of the eighth pipe 30 is installed with a turbine compartment 3, refer to Figure 7 A turbine 27 is installed in the turbine compartment 3 , and the turbine compartment 3 is located above the first water tank 2 . A sixth valve 25 is also provided on the eighth pipeline 30 .

[0047] Reference Figure 3 to Figure 6The third water pool 7 is funnel-shaped, and a second pipe 8 is airtightly connected between the third water pool 7 and the second side surface. One end of the second pipe 8 is flush with the lowest point of the bottom surface of the third water pool 7, and the pipe surface of the other end of the second pipe 8 is coplanar with the second side surface. A first valve 20 is provided at one end of the second pipe 8 close to the third water pool 7, and a third valve 22 is provided at one end of the second pipe 8 close to the second side surface; a third pipe 9 is also connected between the third water pool 7 and the upper surface of the cover plate, one end of the third pipe 9 is located in the third water pool 7 and higher than the highest point of the second pipe 8, and the other end of the third pipe 9 is airtightly connected to the upper surface of the cover plate, and a fifth valve 24 is provided at one end of the third pipe 9 close to the upper surface; a first pipe 6 is also airtightly connected to the pool wall of the third water pool 7, one end of the first pipe 6 is flush with the pool wall of the third water pool 7, and a water pump tank 5 is installed at the other end of the first pipe 6, refer to Figure 8 A water pump 26 is installed in the water pump compartment 5, and the water pump compartment 5 is located above the second water pool 4; the third water pool 7 is covered with a blocking net 19, and the height of the blocking net 19 is higher than one end of the third pipe 9 located in the third water pool 7. Floating balls 28 are piled up in the third water pool 7, and the size of the floating balls 28 is larger than the mesh size of the blocking net 19, the first filter screen, and the second filter screen.

[0048] The cover is designed in a prism shape with different sides. The water pressure can be dispersed and not concentrated on the first to fourth sides, thereby ensuring the stable operation of the device. Each surface can be spliced ​​together in an airtight manner, and each has its own functional properties. If maintenance or replacement is required later, it can be replaced separately, and the manufacturing cost is low.

[0049] Reference Figure 2 The power plant 13 is externally connected to a waste liquid pipe and a fifth pipeline 11, the other end of the waste liquid pipe is located above the second water pool 4, the other end of the fifth pipeline 11 is airtightly connected to a gas storage tank 16, and a sixth pipeline 17 is airtightly connected between the gas storage tank 16 and the second pipeline 8, a first one-way valve 15 is provided on the second pipeline 8, and a second one-way valve 18 is also installed on the second pipeline 8, the second one-way valve 18 is between the first valve 20 and the third valve 22, and is used to connect the inside and outside of the second pipeline 8 when the second one-way valve 18 is opened; the power plant 13 is electrically connected to the water pump 26 through the first cable 12, and the first cable 12 is used to supply power to the water pump 26, and the power plant 13 is electrically connected to the turbine 27 through the second cable 14, and the second cable 14 is used to transmit the electricity generated by the turbine 27 back to the power plant 13.

[0050] The device has a reasonable structure and is designed with the separation and treatment of wastewater and waste gas in mind. By setting the height difference of different water pools and the way the pipes are connected, it can effectively guide the movement of fluids, improve the resource recovery rate, and reduce the environmental burden of the power plant 13.

[0051] In some embodiments, the height difference between the second water pool 4 and the first water pool 2 is defined as H, and the height difference between the third water pool 7 and the second water pool 4 is defined as h, where H and h are positive, and H>h. The setting of the height differences H and h promotes the natural gravity movement of the water flow, increases the flow rate and flow rate, optimizes the energy conversion process, and enables the wastewater to obtain higher kinetic energy when passing through the turbine 27, thereby improving the output efficiency of electric energy. Moreover, since H>h, the electric energy consumed by the wastewater to be lifted through the height h is less than the electric energy generated by the wastewater passing through the height H, thereby achieving self-circulation.

[0052] In some embodiments, an inspection port is provided on the third side surface, and a rubber ring is sleeved on the outer contour of the inspection port, and when the inspection port is closed, the rubber ring is used to seal the water tank 1. The design of the inspection port enhances the maintainability of the equipment, enables operators to conveniently inspect and clean, prevents equipment failure, ensures long-term stable operation, and reduces downtime maintenance costs.

[0053] In some embodiments, the cover plate is a transparent cover plate. The use of the transparent cover plate enables the operator to intuitively monitor the water level and the state of the float 28, discover abnormal conditions in time, reduce operating errors, improve safety and efficiency, and ensure efficient operation of the system.

[0054] In some embodiments, a slow flow plate is fixed at a position of the bottom surface of the first water pool 2 facing the turbine chamber 3, and the slow flow plate protrudes from the bottom surface of the first water pool 2. The design of the slow flow plate can effectively reduce the impact force of the water flow, reduce the wear on the first water pool 2, and make the water flow enter the first water pool 2 more smoothly, thereby reducing costs.

[0055] In some embodiments, at least one anti-corrosion layer is coated on the inner walls of the first water pool 2, the second water pool 4, and the third water pool 7, as well as the inner walls of the first pipe 6, the second pipe 8, the third pipe 9, the fourth pipe 10, the fifth pipe 11, the sixth pipe 17, the seventh pipe 29, the eighth pipe 30, and the waste liquid pipe. The design of coating the anti-corrosion layer on the inner wall ensures that the equipment can effectively resist corrosion when treating wastewater containing corrosive substances, prolongs the service life of the equipment, and reduces maintenance and replacement costs.

[0056] In some embodiments, the volume of the water tank 1 is defined as Q, the volume of the first water pool 2 is defined as X, the volume of the second water pool 4 is defined as Y, and the volume of the third water pool 7 is defined as Z, wherein Q, X, Y, and Z are all positive numbers, and Q ≥ X + Y + Z. The volume is designed according to actual needs. When considering an open-air environment, it can be designed as Q> X + Y + Z. The design of the volume can be set through actual calculations combined with the environment in which the device is located, ensuring the treatment capacity of wastewater and waste gas, making full use of the resources of the power plant 13, ensuring efficient energy recovery, and avoiding waste of resources.

[0057] In some embodiments, the float 28 is at least one of a polyethylene float, a polypropylene float, and a polyvinyl fluoride float with a smooth and solid outer surface. The use of corrosion-resistant float 28 material makes the float 28 not easily damaged during long-term use, maintains good buoyancy and function, ensures long-term stable operation of the equipment, and reduces the replacement frequency. The surface of the float 28 is smooth, which reduces the impact of friction during movement. When the float 28 is any one of a polyethylene float, a polypropylene float, and a polyvinyl fluoride float, the material is hard, so the float 28 has an incompressible property. When the float 28 circulates once, because it is incompressible and has a fixed volume, the first water pool 2 will reduce a fixed amount of water, and the second water pool 4 will increase a fixed amount of water, ensuring the controllability and stability of the wastewater circulation during the working process.

[0058] A second aspect of an embodiment of the present invention provides an operation method of a power plant waste recovery power generation device based on a hydraulic circulation pump, comprising:

[0059] Step 1: When the waste water discharged from the waste liquid pipe of the power plant 13 collected in the second water tank 4 reaches more than 80% of the volume of the second water tank 4, and the waste gas discharged from the fifth pipeline 11 of the power plant 13 collected by the gas tank 16 reaches more than 80% of the volume of the gas tank 16, keep all valves closed and use the barrier net 19 to cover the float 28.

[0060] Step 2: The power plant 13 inputs electric energy to the water pump 26 in the water pump compartment 5 through the first cable 12 , and the water pump 26 pumps the wastewater in the second water tank 4 to the third water tank 7 along the first pipeline 6 .

[0061] Step 3: When the water level of the third water pool 7 overflows all the floats 28, open the first valve 20, and the wastewater sucks the floats 28 to form a solid-liquid mixture that moves downward through the second pipe 8; when the solid-liquid mixture approaches the third valve 22, open the third valve 22 and the second valve 21; under the action of gravity, the downward movement speed of the solid-liquid mixture continues to increase, and the floats 28 are flushed into the water tank 1.

[0062] Step 4: After the float 28 enters the water tank 1, the density of the float 28 is lower than the density of the waste liquid, and the float 28 floats up and accumulates on the upper part of the water tank 1; because the float 28 is solid, the volume occupied by the float 28 in the water tank 1 increases. At the same time, because the third water pool 7 is higher than the second water pool 4, when the solid-liquid mixture continues to flow into the water tank 1, the waste water in the water tank 1 is pressed to the second water pool 4 through the fourth pipe 10.

[0063] Step 5: When all the floats 28 enter the water tank 1, the water pump 26 stops working; close the third valve 22, the second valve 21 and the first valve 20, and open the fourth valve 23 and the fifth valve 24; the wastewater in the first water pool 2 enters the water tank 1 along the seventh pipe 29, and the water level of the water tank 1 rises, squeezing the float 28 along the third pipe 9 into the third water pool 7; when the lowest surface of the float 28 in the water tank 1 is higher than the lowest surface of the seventh pipe 29, close the fourth valve 23.

[0064] Step six: open the third valve 22 and the first one-way valve 15, flush the exhaust gas in the gas storage tank 16 into the second pipe 8 along the sixth pipe 17, and use the air pressure and the weight of the water to continue to squeeze the float 28 along the third pipe 9 into the third water pool 7, while lowering the water level in the third pipe 9; when the highest water level in the water tank 1 reaches the lowest water level in the first water pool 2, close the third valve 22, the first one-way valve 15 and the fifth valve 24, and then open the second one-way valve 18 to release the pressure.

[0065] Step seven: Open the sixth valve 25, and the wastewater in the second water tank 4 enters the turbine compartment 3 along the eighth pipe 30, driving the turbine 27 in the turbine compartment 3 to generate power, and the generated electric energy is transmitted to the power plant 13 along the second cable 14, completing the first cycle.

[0066] Step 8: The third water pool 7 receives the floating balls 28 from the circulation, and the number of floating balls 28 is replenished until the number of floating balls 28 in the third water pool 7 is equal to the number of floating balls 28 in the third water pool 7 when there is no circulation. At the end of the first circulation, the number of floating balls 28 returning to the third water pool 7 will be reduced due to the coupling effect of buoyancy and gravity, so it needs to be replenished from the outside. After the first circulation, the number of floating balls 28 will not decrease under the squeezing of the floating balls 28 in the subsequent circulation, and no further replenishment is required.

[0067] Step nine: Repeat steps one to seven; after the volume of the gas circulated to the gas storage tank 16 is less than 20% of the volume of the gas storage tank 16, perform another cycle, and then discharge all the waste liquid in the first water pool 2, the second water pool 4 and the third water pool 7 into the water tank 1, and then discharge it through the drain pipe of the water tank 1.

[0068] In some embodiments, when the wastewater in the water tank 1 is discharged through the drain pipe, the end of the drain pipe not connected to the water tank 1 is also connected to at least one of the four tank bodies including a sedimentation tank, a biological filter tank, an aeration tank, and an activated sludge tank, and the time for the wastewater to be discharged from the tank body is less than the time for the second water tank 4 to collect wastewater again to reach 80% of the volume of the second water tank 4, or the time for the wastewater to be discharged from the tank body is less than the time for the gas tank 16 to collect waste gas again to reach 80% of the volume of the gas tank 16. The time limit ensures that the wastewater can be discharged in time after the next cycle, maintaining the stability of the device.

[0069] In summary, the present invention provides a power plant waste recovery capacity generation device and operation method based on a hydraulic circulation pump, which comprehensively considers multiple factors such as water flow dynamics, material corrosion resistance, and ease of operation to form an efficient and stable system. The combination of reasonable structural design and scientific operation methods not only improves the recycling rate of resources, but also effectively reduces the negative impact on the environment, helping the power plant 13 to achieve higher standards in environmental protection. At the same time, by extending the service life of the equipment and reducing maintenance costs, it creates significant economic benefits for the power plant 13. This comprehensive innovative solution provides strong support for the sustainable development of the power generation industry.

[0070] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A power plant waste recovery and energy generation device based on a hydraulic circulation pump, characterized in that: It includes a third water pool, a second water pool, a first water pool and a water tank arranged from high to low; the water tank includes a cover plate and a box body which are airtightly spliced ​​in an upper and lower structure, the cover plate is in a prism shape, and the sides of the cover plate are defined to include a first side surface, a second side surface, a third side surface and a fourth side surface in a clockwise direction; the bottom surface of the box body is connected to a drain pipe with a control valve; The first water pool is fixed on the first side surface, a seventh pipe is connected between the first water pool and the first side surface in an airtight manner, one end of the seventh pipe is flush with the bottom surface of the first water pool, the other end of the seventh pipe has a pipe surface coplanar with the first side surface and is installed with a first filter screen, and a fourth valve is also provided on the seventh pipe; A fourth pipe is air-tightly connected between the second water pool and the fourth side surface, one end of the fourth pipe is flush with the bottom surface of the second water pool, the pipe surface of the other end of the fourth pipe is coplanar with the fourth side surface and is installed with a second filter screen, and a second valve is also provided on the fourth pipe; an eighth pipe is air-tightly connected to the bottom of the second water pool, one end of the eighth pipe is flush with the bottom surface of the second water pool, the other end of the eighth pipe is installed with a turbine compartment, a turbine is installed in the turbine compartment, the turbine compartment is located above the first water pool, and a sixth valve is also provided on the eighth pipe; The third water pool is funnel-shaped, and a second pipe is airtightly connected between the third water pool and the second side surface, one end of the second pipe is flush with the lowest point of the bottom surface of the third water pool, and the pipe surface of the other end of the second pipe is coplanar with the second side surface, a first valve is provided at one end of the second pipe close to the third water pool, and a third valve is provided at one end of the second pipe close to the second side surface; a third pipe is also connected between the third water pool and the upper surface of the cover plate, one end of the third pipe is located in the third water pool and higher than the highest point of the second pipe, and the other end of the third pipe is airtightly connected to the third water pool. A fifth valve is provided on the upper surface of the cover plate at one end of the third pipe close to the upper surface; a first pipe is also airtightly connected to the pool wall of the third water pool, one end of the first pipe is flush with the pool wall of the third water pool, a water pump compartment is installed at the other end of the first pipe, a water pump is installed in the water pump compartment, and the water pump compartment is located above the second water pool; a screen is covered in the third water pool, the height of the screen is higher than the end of the third pipe located in the third water pool, a floating ball is piled up in the third water pool, and the size of the floating ball is larger than the mesh size of the screen, the first filter screen, and the second filter screen; The power plant is externally connected to a waste liquid pipe and a fifth pipe, the other end of the waste liquid pipe is located above the second water pool, the other end of the fifth pipe is air-tightly connected to a gas storage tank, the gas storage tank and the second pipe are air-tightly connected to a sixth pipe, a first one-way valve is provided on the second pipe, a second one-way valve is also installed on the second pipe, the second one-way valve is between the first valve and the third valve, and is used to connect the inside and outside of the second pipe when the second one-way valve is opened; the power plant is electrically connected to the water pump through a first cable, the first cable is used to power the water pump, the power plant is electrically connected to the turbine through a second cable, and the second cable is used to transmit the electricity generated by the turbine back to the power plant.

2. A power plant waste recovery and energy generation device based on a hydraulic circulation pump according to claim 1, characterized in that: The height difference between the second water pool and the first water pool is defined as H, and the height difference between the third water pool and the second water pool is defined as h, wherein H and h are positive, and H>h.

3. A power plant waste recovery and energy generation device based on a hydraulic circulation pump according to claim 2, characterized in that: An inspection opening is provided on the third side surface, and a rubber ring is sleeved on the outer contour of the inspection opening. When the inspection opening is closed, the rubber ring is used to seal the water tank.

4. A power plant waste recovery and energy generation device based on a hydraulic circulation pump according to claim 3, characterized in that: The cover plate is a transparent cover plate.

5. A power plant waste recovery and energy generation device based on a hydraulic circulation pump according to claim 4, characterized in that: A slow flow plate is fixed at a position of the bottom surface of the first water pool facing the turbine chamber, and the slow flow plate protrudes from the bottom surface of the first water pool.

6. A power plant waste recovery and energy generation device based on a hydraulic circulation pump according to claim 5, characterized in that: The inner walls of the first water pool, the second water pool, and the third water pool, as well as the inner walls of the first pipe, the second pipe, the third pipe, the fourth pipe, the fifth pipe, the sixth pipe, the seventh pipe, the eighth pipe, and the waste liquid pipe are all coated with at least one anti-corrosion layer.

7. A power plant waste recovery and energy generation device based on a hydraulic circulation pump according to claim 6, characterized in that: Define the volume of the water tank as Q, the volume of the first water pool as X, the volume of the second water pool as Y, and the volume of the third water pool as Z, where Q, X, Y, and Z are all positive numbers, and Q≥X+Y+Z.

8. The power plant waste recovery and energy generation device based on a hydraulic circulation pump according to claim 7, characterized in that: The float is at least one of a polyethylene float, a polypropylene float, and a polyvinyl fluoride float with a smooth outer surface and a solid core.

9. An operating method of a power plant waste recovery power generation device based on a hydraulic circulation pump according to claim 8, characterized in that: include: Step 1: When the waste water discharged from the waste liquid pipe of the power plant collected in the second water tank reaches more than 80% of the volume of the second water tank, and the waste gas discharged from the fifth pipeline of the power plant collected in the gas storage tank reaches more than 80% of the volume of the gas storage tank, keep all valves closed and cover the float with a screen; Step 2: The power plant inputs electric energy to the water pump in the water pump compartment through the first cable, and the water pump pumps the wastewater in the second water tank to the third water tank along the first pipeline; Step 3: When the water level of the third water pool overflows all the floats, the first valve is opened, and the wastewater sucks the floats to form a solid-liquid mixture that moves downward through the second pipe; when the solid-liquid mixture approaches the third valve, the third valve and the second valve are opened; under the action of gravity, the downward movement speed of the solid-liquid mixture increases continuously, and the floats are flushed into the water tank; Step 4: After the float enters the water tank, the density of the float is lower than the density of the waste liquid, and the float floats up and accumulates on the upper part of the water tank; because the float is solid, the volume occupied by the float in the water tank increases, and because the third water tank is higher than the second water tank, when the solid-liquid mixture continuously flows into the water tank, the waste water in the water tank is pressed to the second water tank through the fourth pipe; Step 5: When all the floats enter the water tank, the water pump stops working; the third valve, the second valve and the first valve are closed, and the fourth valve and the fifth valve are opened; the wastewater in the first water pool enters the water tank along the seventh pipe, and the water level of the water tank rises to squeeze the float along the third pipe into the third water pool; when the lowest surface of the float in the water tank is higher than the lowest surface of the seventh pipe, the fourth valve is closed; Step 6: Open the third valve and the first one-way valve, flush the exhaust gas in the gas storage tank into the second pipe along the sixth pipe, and continue to squeeze the float along the third pipe into the third water pool by using air pressure and water weight, while lowering the water level in the third pipe; when the highest water level in the water tank reaches the lowest water level in the first water pool, close the third valve, the first one-way valve and the fifth valve, and then open the second one-way valve to release the pressure; Step 7: Open the sixth valve, and the wastewater in the second water pool enters the turbine compartment along the eighth pipe, driving the turbine in the turbine compartment to increase production capacity, and transmitting the generated electric energy to the power plant along the second cable, completing the first cycle; Step 8: The third water pool receives the floating balls from the circulation, and replenishes the number of floating balls until the number of floating balls in the third water pool is equal to the number of floating balls in the third water pool before the circulation; Step nine: Repeat steps one to seven; after the volume of the gas circulated to the gas storage tank is less than 20% of the volume of the gas storage tank, perform another cycle, and then drain all the waste liquid in the first water pool, the second water pool and the third water pool into the water tank, and then drain it through the drain pipe of the water tank.

10. The method for operating a power plant waste recovery power generation device based on a hydraulic circulation pump according to claim 9, characterized in that: When the wastewater in the water tank is discharged through the drain pipe, the end of the drain pipe that is not connected to the water tank is also connected to at least one of four types of tank bodies including a sedimentation tank, a biological filter tank, an aeration tank, and an activated sludge tank. The time it takes for the wastewater to be discharged from the tank body is less than the time it takes for the second water tank to recollect the wastewater to reach 80% of the volume of the second water tank, or the time it takes for the wastewater to be discharged from the tank body is less than the time it takes for the gas tank to recollect the waste gas to reach 80% of the volume of the gas tank.

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