System and method for recycling warm discharged water of power station

Abstract

The invention relates to a power station warm discharged water recycling system and method.The power station warm discharged water recycling system comprises a capillary transpiration type isothermal compressor and a warm discharged water heat exchange power generation assembly, a warm discharged water inlet is formed in one end of the capillary transpiration type isothermal compressor, and a steam outlet is formed in the other end of the capillary transpiration type isothermal compressor; the warm drainage water inlet is communicated with the steam outlet through a first warm drainage water pipeline, an air inlet of the capillary transpiration type isothermal compressor is connected with an air inlet pipe, and the capillary transpiration type isothermal compressor is sequentially connected with a refrigeration cycle assembly and a liquefaction energy storage tank through a first steam pipe; the warm drainage heat exchange power generation assembly is connected with the liquefied energy storage tank through a second steam pipe, a warm drainage water inlet pipe is arranged at one end of the warm drainage water heat exchange power generation assembly, a warm drainage water discharge pipe is arranged at the other end of the warm drainage water heat exchange power generation assembly, and the warm drainage water inlet pipe is communicated with the warm drainage water discharge pipe through a second warm drainage water pipeline.

Description

Technical Field

[0001] This application relates to the field of thermal drainage cooling technology, specifically to a power plant thermal drainage reuse system and method. Background Technology

[0002] Currently, the power plant has a power generation efficiency of less than 40%, so it needs large-scale energy storage technology to alleviate peak-shaving pressure. At the same time, it needs to reduce the sea temperature caused by warm discharge to below 4°C to avoid crossing the ecological red line. The power plant faces the dual needs of flexible peak-shaving and warm discharge cooling.

[0003] In related technologies, power plants typically use pumped storage or chemical energy storage to achieve peak shaving and valley filling. However, pumped storage is limited by geographical conditions, requires huge investment and has a long construction period, while chemical energy storage faces challenges such as high cost, limited lifespan and safety, which limits its large-scale application. Power plants have adopted various heat absorption methods to cool warm wastewater, such as warm wastewater heating based on heat pump technology, warm wastewater reheating for condensate reheating, warm wastewater for seawater desalination, and even warm wastewater aquaculture. However, due to limited functional attributes and insufficient economic investment, these technologies are only suitable for small-scale experiments.

[0004] Therefore, it is necessary to design a power plant wastewater reuse system to overcome the above problems. Summary of the Invention

[0005] This application provides a power plant warm wastewater reuse system and method, which can solve the technical problems in related technologies where power plants use pumped storage or chemical energy storage for peak shaving. Pumped storage is limited by geographical conditions, requires huge investment and has a long construction period, while chemical energy storage faces challenges such as high cost, limited lifespan and safety, which limit its large-scale application. Power plants use heat absorption methods to cool warm wastewater, which is only suitable for small-scale experiments.

[0006] In a first aspect, embodiments of this application provide a power plant warm water recycling system, comprising: a capillary evaporating isothermal compressor and a warm water heat exchange power generation component. One end of the capillary evaporating isothermal compressor is provided with a warm water inlet, and the other end is provided with a steam outlet. The warm water inlet is connected to the steam outlet via a first warm water pipe. The air inlet of the capillary evaporating isothermal compressor is connected to an air inlet pipe. The capillary evaporating isothermal compressor is sequentially connected to a refrigeration cycle component and a liquefied energy storage tank via a first steam pipe. The warm water heat exchange power generation component is connected to the liquefied energy storage tank via a second steam pipe. One end of the warm water heat exchange power generation component is provided with a warm water inlet pipe, and the other end is provided with a warm water outlet pipe. The warm water inlet pipe is connected to the warm water outlet pipe via the second warm water pipe.

[0007] In conjunction with the first aspect, in one embodiment, the refrigeration cycle assembly includes a precooler and a vapor-liquid separator connected in series. The precooler is connected to the exhaust port of the capillary evaporation isothermal compressor, and the vapor-liquid separator is connected to the liquefied energy storage tank. An expansion valve is provided between the precooler and the vapor-liquid separator.

[0008] In conjunction with the first aspect, in one embodiment, the precooler is also connected to the vapor-liquid separator via a precooling branch pipe.

[0009] In conjunction with the first aspect, in one embodiment, the warm water heat exchange power generation component includes a warm water heat exchanger and an expansion generator connected in series. The warm water heat exchanger is connected to the liquefied energy storage tank. One end of the warm water heat exchanger is provided with a warm water inlet pipe, and the other end of the warm water heat exchanger is provided with a warm water outlet pipe.

[0010] In conjunction with the first aspect, in one embodiment, the air inlet of the capillary evaporating isothermal compressor and the warm water outlet are located on opposite sides of the capillary evaporating isothermal compressor, and the air inlet of the capillary evaporating isothermal compressor and the steam outlet are located on the same side of the capillary evaporating isothermal compressor.

[0011] In conjunction with the first aspect, in one embodiment, a booster pump is provided between the thermal drainage heat exchange power generation component and the liquefied energy storage tank.

[0012] In conjunction with the first aspect, in one embodiment, the capillary evaporation isothermal compressor is provided with multiple capillary cores, and the multiple capillary cores are disposed in the first temperature drainage pipe.

[0013] In conjunction with the first aspect, in one embodiment, the first and second warm drainage pipes are arranged in a curved manner.

[0014] Secondly, embodiments of this application provide a method for reusing thermal wastewater from a power plant, which includes the following steps: Air is fed into a capillary evaporation isothermal compressor for isothermal compression, and the compressed air is fed into a refrigeration cycle component and a liquefied energy storage tank for liquefaction and storage. The capillary evaporation isothermal compressor is fed into a refrigerated wastewater. Liquid air is fed into a thermal drainage heat exchanger for power generation, where it is isothermally vaporized and expands to generate electricity. The thermal drainage heat exchanger for power generation is fed into the thermal drainage.

[0015] In conjunction with the second aspect, in one embodiment, the isothermal compression of air by inputting it into a capillary evaporation isothermal compressor includes: Air is introduced into the capillary evaporation isothermal compressor through the air inlet pipe, and warm water is introduced into the capillary evaporation isothermal compressor through the warm water inlet. The air inlet and warm water inlet of the capillary evaporation isothermal compressor are located on opposite sides of the capillary evaporation isothermal compressor, and the air inlet and steam outlet of the capillary evaporation isothermal compressor are located on the same side of the capillary evaporation isothermal compressor.

[0016] The beneficial effects of the technical solutions provided in this application include: By utilizing a capillary evaporation isothermal compressor to isothermally compress air, and a refrigeration cycle component to liquefy and store the compressed air, and by using a warm water heat exchange power generation component to isothermally vaporize and expand the liquid air to generate electricity, with both the capillary evaporation isothermal compressor and the warm water heat exchange power generation component being inputs of warm water, the system achieves peak shaving using surplus electricity and actively extracts heat to reduce the temperature of the warm water. This solves the technical problem that power plants using pumped storage or chemical energy storage for peak shaving are limited by geographical conditions, huge investment and long construction period, while chemical energy storage faces challenges such as high cost, limited lifespan and safety, which restrict their large-scale application. The power plant uses heat absorption to cool the warm water, which is only suitable for small-scale experiments. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a power plant thermal wastewater reuse system provided in an embodiment of this application.

[0019] In the diagram: 1. Capillary evaporation isothermal compressor; 11. Warm water inlet; 12. Steam outlet; 13. First warm water pipe; 2. Refrigeration cycle assembly; 21. Precooler; 22. Vapor-liquid separator; 23. Expansion valve; 24. Precooling branch pipe; 3. Liquefied energy storage tank; 4. Warm water heat exchanger and power generation assembly; 41. Warm water heat exchanger; 411. Warm water inlet pipe; 412. Warm water outlet pipe; 413. Second warm water pipe; 42. Expansion generator; 5. Booster pump. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0021] This application provides a power plant warm wastewater reuse system and method, which can solve the technical problems of power plants using pumped storage or chemical energy storage for peak shaving. Pumped storage is limited by geographical conditions, requires huge investment and has a long construction period, while chemical energy storage faces high cost, limited lifespan and safety adjustments, which limit its large-scale application. Power plants using heat absorption methods to cool warm wastewater are only suitable for small-scale experiments.

[0022] See Figure 1 As shown in the figure, this application provides a power plant thermal wastewater reuse system, which includes: a capillary evaporating isothermal compressor 1 and a thermal wastewater heat exchange power generation component 4. One end of the capillary evaporating isothermal compressor 1 is provided with a thermal wastewater inlet 11, and the other end of the capillary evaporating isothermal compressor 1 is provided with a steam outlet 12. The thermal wastewater inlet 11 is connected to the steam outlet 12 through a first thermal wastewater pipe 13. The air inlet of the capillary evaporating isothermal compressor 1 is connected to an air inlet pipe. The capillary evaporating isothermal compressor 1 is sequentially connected to a refrigeration cycle component 2 and a liquefied energy storage tank 3 through a first steam pipe. The thermal wastewater heat exchange power generation component 4 is connected to the liquefied energy storage tank 3 through a second steam pipe. One end of the thermal wastewater heat exchange power generation component 4 is provided with a thermal wastewater inlet pipe 411, and the other end of the thermal wastewater heat exchange power generation component 4 is provided with a thermal wastewater discharge pipe 412. The thermal wastewater inlet pipe 411 is connected to the thermal wastewater discharge pipe 412 through a second thermal wastewater pipe 413.

[0023] In this embodiment, warm water is input into the capillary evaporation isothermal compressor 1 through the warm water inlet 11. Under the effect of capillary evaporation cooling, the capillary evaporation isothermal compressor 1 isothermally compresses the air, reducing irreversible losses in the compression process and reducing the power consumption required to liquefy a unit mass of air, thereby improving the electro-cooling conversion efficiency of air in the liquefaction process. The compressed air enters the refrigeration cycle component 2 for liquefaction, and the liquid air enters the liquefaction storage tank 3 for storage.

[0024] Warm wastewater is fed into the warm wastewater heat exchanger and power generation unit 4 through the warm wastewater inlet pipe 411. Liquid air isothermally vaporized and expands in the warm wastewater heat exchanger and power generation unit 4 to generate electricity. The heat of the warm wastewater is fully utilized to isothermally vaporize and expand the liquid air, realizing the use of surplus electricity for peak shaving and actively extracting heat to reduce the temperature of the warm wastewater, thus meeting the environmental protection emission requirements of warm wastewater. Warm wastewater can be fed into the capillary evaporation isothermal compressor 1 and the warm wastewater heat exchanger and power generation unit 4 at the same time.

[0025] The power plant's wastewater reuse system combines peak-shaving energy storage and cooling power generation functions. It achieves cascaded energy utilization during isothermal compression and isothermal gasification processes. The system decouples the energy storage system from the turbine extraction system, as well as the cooling system from the power generation load. It utilizes only surplus electricity and wastewater, simultaneously realizing peak-valley arbitrage and environmental value, resulting in a high return on investment. In other embodiments, the wastewater can first be fed into the capillary evaporation isothermal compressor 1, and then into the wastewater heat exchange power generation component 4.

[0026] This embodiment utilizes the capillary evaporation isothermal compressor 1 to isothermally compress air, and the refrigeration cycle component 2 to liquefy and store the compressed air. The warm water heat exchange power generation component 4 isothermally vaporizes and expands the liquid air to generate electricity. Both the capillary evaporation isothermal compressor 1 and the warm water heat exchange power generation component 4 are input warm water, achieving peak shaving using surplus electricity and actively extracting heat to lower the temperature of the warm water. This solves the technical problems of related technologies where power plants use pumped storage or chemical energy storage for peak shaving. Pumped storage is limited by geographical conditions, requires huge investment, and has a long construction period; chemical energy storage faces challenges such as high cost, limited lifespan, and safety, limiting its large-scale application. Power plants using heat absorption methods to cool warm water are only suitable for small-scale experiments.

[0027] Further, see Figure 1 As shown, in some embodiments, the refrigeration cycle assembly 2 includes a precooler 21 and a vapor-liquid separator 22 connected in series. The precooler 21 is connected to the exhaust port of the capillary evaporation isothermal compressor 1, and the vapor-liquid separator 22 is connected to the liquefied energy storage tank 3. An expansion valve 23 is provided between the precooler 21 and the vapor-liquid separator 22.

[0028] In this embodiment, the precooler 21 precools the low-temperature air through heat exchange, and then partially liquefies it through the throttling expansion section. The partially liquefied air is separated in the vapor-liquid separator 22, and the liquid air enters the liquefied energy storage tank 3 for storage.

[0029] Further, see Figure 1 As shown, in some embodiments, the precooler 21 is also connected to the vapor-liquid separator 22 via a precooling branch pipe 24.

[0030] In this embodiment, the unliquefied air returns to the precooler 21 through the precooling branch pipe 24, thereby achieving sufficient precooling of the compressed air.

[0031] Further, see Figure 1 As shown, in some embodiments, the warm water heat exchange power generation component 4 includes a warm water heat exchanger 41 and an expansion generator 42 connected in series. The warm water heat exchanger 41 is connected to the liquefied energy storage tank 3. One end of the warm water heat exchanger 41 is provided with the warm water inlet pipe 411, and the other end of the warm water heat exchanger 41 is provided with the warm water outlet pipe 412.

[0032] In this embodiment, warm wastewater is input into the warm wastewater heat exchanger 41 through the warm wastewater inlet pipe 411. The warm wastewater heat exchanger 41 isothermally vaporizes liquid air and converts it into high-pressure room-temperature gas. The high-pressure room-temperature gas drives the expansion generator 42 to generate electricity, which is then fed into the power grid. This fully utilizes the heat of the warm wastewater to achieve isothermal vaporization and expansion of liquid air, reducing the temperature of the warm wastewater during the active heat extraction process. The waste heat of the warm wastewater is also used to do work, improving the overall energy density and round-trip efficiency of the power plant's warm wastewater reuse system. At the same time, the power plant's warm wastewater reuse system has a large cooling range and high cooling efficiency, achieving the environmental protection red line of warm wastewater discharge temperature below 4°C.

[0033] Further, see Figure 1 As shown, in some embodiments, the air inlet of the capillary evaporating isothermal compressor 1 and the warm water outlet 11 are located on opposite sides of the capillary evaporating isothermal compressor 1, and the air inlet of the capillary evaporating isothermal compressor 1 and the steam outlet 12 are located on the same side of the capillary evaporating isothermal compressor 1.

[0034] In this embodiment, the direction of the warm water discharge from the first warm water discharge pipe 13 is opposite to the direction of the compressed air in the capillary evaporation isothermal compressor 1, which increases the heat exchange contact time between the warm water discharge and the compressed air, allowing the warm water discharge and the compressed air to exchange heat fully and improving the heat exchange efficiency of the warm water discharge.

[0035] Further, see Figure 1 As shown, in some embodiments, a booster pump 5 is provided between the thermal drainage heat exchange power generation component 4 and the liquefied energy storage tank 3.

[0036] In this embodiment, a booster pump 5 is installed between the warm water heat exchanger 41 and the liquefied energy storage tank 3. The booster pump 5 pressurizes the liquid air, causing it to vaporize. In other embodiments, multiple warm water heat exchangers 41 connected in series are installed between the liquefied energy storage tank 3 and the expansion generator 42 to improve the efficiency of expansion power generation.

[0037] Further, see Figure 1 As shown, in some embodiments, the capillary evaporation isothermal compressor 1 is provided with multiple capillary cores, and the multiple capillary cores are disposed in the first temperature drainage pipe 13.

[0038] In this embodiment, warm wastewater is input into the capillary evaporation isothermal compressor 1 through the warm wastewater inlet 11 and sprayed onto the capillary core. The capillary evaporation isothermal compressor 1 isothermally compresses air, and the heat of compression released during the compression process is transferred to the first warm wastewater pipe 13, causing the warm wastewater to evaporate violently at the gas-liquid interface, generating low-temperature desalination steam. The steam is discharged from the steam outlet 12, realizing the desalination of seawater. The capillary evaporation isothermal compressor 1 is a static device. The power plant warm wastewater reuse system has few moving parts, which makes its service life long and maintenance cost low.

[0039] Further, see Figure 1 As shown, in some embodiments, the first warm drainage pipe 13 and the second warm drainage pipe 413 are arranged in a curved manner.

[0040] In this embodiment, the first warm drainage pipe 13 and the second warm drainage pipe 413 are arranged in a curved manner to increase the contact area between the first warm drainage pipe 13 and the compressed air, thereby further improving the heat exchange efficiency of the warm drainage and realizing isothermal compression of the air in the capillary evaporation isothermal compressor 1. At the same time, the contact area between the second warm drainage pipe 413 and the liquid air is increased, thereby improving the heat exchange efficiency of the liquid air and realizing isothermal vaporization of the liquid air in the warm drainage heat exchanger 41.

[0041] This application provides a method for reusing thermal wastewater from a power plant, which includes the following steps: S1: Air is input into the capillary evaporation isothermal compressor 1 for isothermal compression, and the compressed air is input into the refrigeration cycle assembly 2 and the liquefaction storage tank 3 for liquefaction and storage, wherein the capillary evaporation isothermal compressor 1 inputs warm water.

[0042] S2: Liquid air is input into the warm water heat exchanger power generation component 4 for isothermal vaporization and expansion to generate electricity, wherein the warm water heat exchanger power generation component 4 is input into the warm water.

[0043] In this embodiment, air is input into the capillary evaporation isothermal compressor 1, and warm wastewater is input into the capillary evaporation isothermal compressor 1 through the warm wastewater inlet 11. Under the effect of capillary evaporation cooling, the capillary evaporation isothermal compressor 1 isothermally compresses the air, reducing irreversible losses in the compression process and reducing the power consumption required to liquefy a unit mass of air, thereby improving the electro-cooling conversion efficiency of air in the liquefaction process. The compressed air enters the refrigeration cycle component 2 for liquefaction, and the liquid air enters the liquefaction energy storage tank 3 for storage. Warm wastewater is input into the warm wastewater heat exchange power generation component 4 through the warm wastewater inlet pipe 411. The liquid air isothermally vaporized and expands in the warm wastewater heat exchange power generation component 4 to generate electricity. The heat of the warm wastewater is fully utilized to isothermally vaporize and expand the liquid air, realizing the use of surplus power for peak shaving and actively extracting heat to reduce the temperature of the warm wastewater, thus meeting the environmental emission requirements of the warm wastewater.

[0044] Furthermore, in some embodiments, the isothermal compression of air by the capillary evaporation isothermal compressor 1 includes: Air is introduced into the capillary evaporation isothermal compressor 1 through the air inlet pipe, and warm water is introduced into the capillary evaporation isothermal compressor 1 through the warm water inlet 11. The air inlet and the warm water inlet 11 of the capillary evaporation isothermal compressor 1 are located on opposite sides of the capillary evaporation isothermal compressor 1, and the air inlet and the steam outlet 12 of the capillary evaporation isothermal compressor 1 are located on the same side of the capillary evaporation isothermal compressor 1.

[0045] In this embodiment, the warm water drain comes into contact with the capillary core through the first warm water drain pipe 13. The heat of the warm water drain is transferred to the capillary core. Under the capillary evaporation cooling effect, the capillary evaporation isothermal compressor 1 isothermally compresses the air. Exemplarily, the air inlet and the steam outlet 12 of the capillary evaporation isothermal compressor 1 are located on the same side of the capillary evaporation isothermal compressor 1, and the exhaust port and the warm water drain inlet 11 of the capillary evaporation isothermal compressor 1 are located on the same side of the capillary evaporation isothermal compressor 1. The direction of the warm water drain in the first warm water drain pipe 13 is opposite to the direction of the compressed air in the capillary evaporation isothermal compressor 1, which increases the heat exchange contact time between the warm water drain and the compressed air, so that the warm water drain and the compressed air can fully exchange heat and improve the heat exchange efficiency of the warm water drain.

[0046] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0047] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A power plant warm water discharge reuse system, characterized by, It comprises: A capillary transpiration isothermal compressor (1), one end of the capillary transpiration isothermal compressor (1) is provided with a warm drain inlet (11), the other end of the capillary transpiration isothermal compressor (1) is provided with a steam outlet (12), the warm drain inlet (11) is communicated with the steam outlet (12) through a first warm drain pipeline (13), the air inlet of the capillary transpiration isothermal compressor (1) is connected with an air inlet pipe, the capillary transpiration isothermal compressor (1) is connected with a refrigeration cycle assembly (2) and a liquefied energy storage tank (3) in sequence through a first steam pipe; A warm drain heat exchange power generation assembly (4) is connected with the liquefied energy storage tank (3) through a second steam pipe, one end of the warm drain heat exchange power generation assembly (4) is provided with a warm drain inlet pipe (411), the other end of the warm drain heat exchange power generation assembly (4) is provided with a warm drain discharge pipe (412), the warm drain inlet pipe (411) is communicated with the warm drain discharge pipe (412) through a second warm drain pipeline (413).

2. The power plant warm water discharge reuse system of claim 1, wherein, The refrigeration cycle assembly (2) comprises a pre-cooler (21) and a vapor-liquid separation tank (22) connected in series, the pre-cooler (21) is communicated with the exhaust port of the capillary transpiration isothermal compressor (1), the vapor-liquid separation tank (22) is connected with the liquefied energy storage tank (3), and an expansion valve (23) is arranged between the pre-cooler (21) and the vapor-liquid separation tank (22).

3. The power plant warm water discharge reuse system of claim 2, wherein, The pre-cooler (21) is also communicated with the vapor-liquid separation tank (22) through a pre-cooling branch pipe (24).

4. The power plant warm water discharge reuse system of claim 1, wherein, The warm drain heat exchange power generation assembly (4) comprises a warm drain heat exchanger (41) and an expansion generator (42) connected in series, the warm drain heat exchanger (41) is connected with the liquefied energy storage tank (3), one end of the warm drain heat exchanger (41) is provided with the warm drain inlet pipe (411), and the other end of the warm drain heat exchanger (41) is provided with the warm drain discharge pipe (412).

5. The power plant warm water discharge reuse system of claim 1, wherein, The air inlet of the capillary transpiration isothermal compressor (1) and the warm drain inlet (11) are located on opposite sides of the capillary transpiration isothermal compressor (1), and the air inlet of the capillary transpiration isothermal compressor (1) and the steam outlet (12) are located on the same side of the capillary transpiration isothermal compressor (1).

6. The power plant warm water discharge reuse system of claim 1, wherein, A booster pump (5) is arranged between the warm drain heat exchange power generation assembly (4) and the liquefied energy storage tank (3).

7. The power plant warm water discharge reuse system of claim 1, wherein, A plurality of capillary cores are arranged in the capillary transpiration isothermal compressor (1), and the plurality of capillary cores are arranged in the first warm drain pipeline (13).

8. The power plant warm water discharge reuse system of claim 1, wherein, The first warm drain pipeline (13) and the second warm drain pipeline (413) are arranged in a curved manner.

9. A method for power plant warm water discharge reuse, characterized in that, It comprises the following steps: Air is input into the capillary transpiration isothermal compressor (1) for isothermal compression, and the compressed air is input into the refrigeration cycle assembly (2) and the liquefied energy storage tank (3) for liquefied storage, wherein the capillary transpiration isothermal compressor (1) inputs warm drain; Liquid air is input into the warm drain heat exchange power generation assembly (4) for isothermal gasification, and the liquid air is expanded to generate power, wherein the warm drain heat exchange power generation assembly (4) inputs warm drain.

10. The power plant warm effluent water reuse method of claim 9, wherein, The air is input into the capillary transpiration isothermal compressor (1) for isothermal compression, comprising: The air is input into the capillary transpiration isothermal compressor (1) through the air inlet pipe, and the warm drainage is input into the capillary transpiration isothermal compressor (1) through the warm drainage inlet (11), wherein the air inlet and the warm drainage inlet (11) of the capillary transpiration isothermal compressor (1) are located on opposite sides of the capillary transpiration isothermal compressor (1), and the air inlet and the steam outlet (12) of the capillary transpiration isothermal compressor (1) are located on the same side of the capillary transpiration isothermal compressor (1).

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