Cooling water waste heat recovery system for cultivation

Abstract

The utility model discloses a cooling water waste heat recovery system for cultivation, and relates to the technical field of cooling water waste heat recovery, the cooling water waste heat recovery system for cultivation comprises a temperature adjusting device and a first pipeline, the temperature adjusting device is provided with a first water flow channel, an outlet of the first water flow channel is used for being communicated with a cultivation pool, and the first pipeline is provided with a second water flow channel. The temperature adjusting device is used for heating water flowing into the first water flow channel, an inlet of the first pipeline is used for being communicated with a circulating cooling water outlet of a thermal power plant, and an outlet of the first pipeline is selectively communicated with the inlet of the first water flow channel and one of the breeding ponds. According to the cooling water waste heat recovery system for breeding, the waste heat of the circulating cooling water is used for fishery breeding, recycling of the waste heat of the circulating cooling water can be achieved, energy is saved, huge economic benefits can be generated, meanwhile, a natural water area can be prevented from being affected by heat pollution, and the environment is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling water waste heat recovery systems, in particular to a cooling water waste heat recovery system for aquaculture. Background Art

[0002] In related technologies, the waste heat of circulating cooling water in thermal power plants is generally discharged into the atmosphere or natural waters, which not only wastes the waste heat of circulating cooling water, but also causes the water in natural waters to heat up rapidly, causing thermal pollution in natural waters. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide a cooling water waste heat recovery system for aquaculture, which can recycle waste heat from circulating cooling water in thermal power plants, saving energy and generating significant economic benefits. It can also protect natural water bodies from thermal pollution and the environment.

[0004] According to an embodiment of the utility model, a cooling water waste heat recovery system for aquaculture includes: a temperature regulating device and a first pipeline, the temperature regulating device has a first water flow channel, the outlet of the first water flow channel is used to communicate with the aquaculture pool, the temperature regulating device is used to heat the water flowing into the first water flow channel, the inlet of the first pipeline is used to communicate with the circulating cooling water outlet of the thermal power plant, and the outlet of the first pipeline is selectively connected to the inlet of the first water flow channel and one of the aquaculture pool.

[0005] According to the cooling water waste heat recovery system for aquaculture according to the embodiment of the present application, the waste heat of circulating cooling water is used for fishery aquaculture, which can realize the recycling and utilization of the waste heat of circulating cooling water, save energy, and generate huge economic benefits. At the same time, it can also protect natural waters from the influence of thermal pollution and protect the environment.

[0006] According to some embodiments of the present invention, the cooling water waste heat recovery system for aquaculture also includes: a water mixing device, the water mixing device is suitable for being connected to a water supply source, the water mixing device has a water mixing device inlet and a water mixing device outlet, the water mixing device inlet is connected to the outlet of the first water flow channel, the water mixing device outlet is suitable for being connected to the aquaculture pool, so that the water mixing device is connected to the first water flow channel and the aquaculture pool; and the outlet of the first pipeline is selectively connected to the water mixing device inlet so that the water mixing device is connected to the first pipeline and the aquaculture pool.

[0007] According to some embodiments of the present invention, the cooling water waste heat recovery system for aquaculture also includes: a heat exchanger, the heat exchanger is formed with a first heat exchange channel and a second heat exchange channel, the first heat exchange channel and the second heat exchange channel cooperate in heat exchange, the first heat exchange channel is used to connect the water mixing device and the water replenishment source, and the second heat exchange channel is used to connect the aquaculture pool.

[0008] According to some embodiments of the present invention, the cooling water waste heat recovery system for aquaculture further includes: a first water pump, which is connected between the outlet of the water mixing device and the aquaculture pool.

[0009] According to some embodiments of the present invention, the cooling water waste heat recovery system for aquaculture also includes: a regulating valve, the regulating valve having a first interface, a second interface and a third interface, the first interface is connected to the outlet of the first pipeline, the second interface is connected to the inlet of the first water flow channel, the third interface is connected to the inlet of the water mixing device, and the first interface is selectively connected to one of the second interface and the third interface.

[0010] According to some embodiments of the present invention, the cooling water waste heat recovery system for aquaculture also includes: a second pipeline, the inlet of the second pipeline is connected to the outlet of the first water flow channel and the third interface, the outlet of the second pipeline is connected to the inlet of the water mixing device, and the second pipeline is provided with a second water pump.

[0011] According to some embodiments of the present invention, the cooling water waste heat recovery system for aquaculture further includes: a heating device, which is arranged in the second pipeline.

[0012] According to some embodiments of the present invention, the water mixing device is provided with a temperature detecting element, and the temperature detecting element is used to detect the temperature of water in the water mixing device.

[0013] According to some embodiments of the present invention, the temperature control device also has a second water flow channel, which is used to connect the circulating cooling water outlet and the circulating cooling water inlet of the thermal power plant, and the temperature control device is used to absorb the heat of the water flowing into the second water flow channel.

[0014] According to some embodiments of the present invention, the temperature regulating device is an absorption heat pump unit.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a flow chart of a cooling water waste heat recovery system for aquaculture according to an embodiment of the present application.

[0018] Reference numerals:

[0019] Cooling water waste heat recovery system 100,

[0020] Temperature regulating device 10, first water flow channel 11, second water flow channel 12,

[0021] The first pipeline 20,

[0022] Water mixing device 30, water mixing device inlet 31, water mixing device outlet 32,

[0023] Breeding pond 40, first water pump 41,

[0024] Heat exchanger 50, first heat exchange channel 51, second heat exchange channel 52,

[0025] Control valve 60, first port 61, second port 62, third port 63,

[0026] The second pipeline 70, the second water pump 71,

[0027] Thermal power plant 200, circulating cooling water inlet 210, circulating cooling water outlet 220, steam turbine 230,

[0028] Water supply source 300 and water supply pump 310 . DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] Reference below Figure 1 The cooling water waste heat recovery system 100 for aquaculture according to an embodiment of the present invention is described. The cooling water waste heat recovery system 100 can be applied to various aquaculture industries, such as fishery, animal husbandry, etc. This application uses the application of the cooling water waste heat recovery system 100 in fishery aquaculture as an example for explanation.

[0031] According to the cooling water waste heat recovery system 100 for aquaculture according to the embodiment of the present invention, Figure 1As shown, the cooling water waste heat recovery system 100 may include: a temperature control device 10 and a first pipeline 20, the temperature control device 10 has a first water flow channel 11, the outlet of the first water flow channel 11 is used to communicate with the breeding pool 40, the temperature control device 10 is used to heat the water flowing into the first water flow channel 11, the inlet of the first pipeline 20 is used to communicate with the circulating cooling water outlet 220 of the thermal power plant 200, and the outlet of the first pipeline 20 is selectively connected to the inlet of the first water flow channel 11 and one of the breeding pool 40.

[0032] It should be noted that in related technologies, the waste heat of circulating cooling water in thermal power plants is generally discharged into the atmosphere or natural waters, which not only wastes the waste heat of circulating cooling water, but also causes the water bodies in natural waters to heat up rapidly, causing thermal pollution in natural waters.

[0033] Based on this, the present invention proposes a cooling water waste heat recovery system 100 for aquaculture. The temperature control device 10 has a first water flow channel 11. The temperature control device 10 can heat the water in the first water flow channel 11. The outlet of the first water flow channel 11 is connected to the aquaculture pool 40. The outlet of the first water flow channel 11 can be directly connected to the aquaculture pool 40, or the outlet of the first water flow channel 11 can be indirectly connected to the aquaculture pool 40. The heated water in the first water flow channel 11 can flow into the aquaculture pool 40, thereby achieving the effect of regulating the water temperature of the aquaculture pool 40 with the heated water. During the production and operation of the thermal power plant 200, a large amount of exhaust steam waste heat and equipment cooling waste heat are released. By using circulating cooling water to cool the equipment in the thermal power plant 200, a large amount of circulating cooling water waste heat is generated. The inlet of the first pipeline 20 can be connected to the circulating cooling water outlet 220 of the thermal power plant 200. The circulating cooling water flows out of the thermal power plant 200 and enters the first pipeline 20.

[0034] The outlet of the first pipe 20 can be connected to the inlet of the first water channel 11, and the outlet of the first pipe 20 can also be connected to the aquaculture pool 40. When the outlet of the first pipe 20 is connected to the inlet of the first water channel 11, circulating cooling water can flow into the first water channel 11 through the first pipe 20. The circulating cooling water can be heated by the temperature control device 10 in the first water channel 11, and the heated circulating cooling water flows into the aquaculture pool 40. When the outlet of the first pipe 20 is connected to the aquaculture pool 40, the circulating cooling water flows into the aquaculture pool 40 through the outlet of the first pipe 20. Compared to when the outlet of the first pipe 20 is connected to the inlet of the first water channel 11, the circulating cooling water is not heated by the temperature control device 10, and the circulating cooling water uses its own waste heat to adjust the temperature in the aquaculture pool 40.

[0035] When the temperature of the water in the breeding pool 40 is high, the outlet of the first pipeline 20 is connected to the breeding pool 40, and the circulating cooling water can directly enter the breeding pool 40 without being heated, and the waste heat of the circulating cooling water can be directly used to adjust the water temperature. When the temperature of the water in the breeding pool 40 is low, the outlet of the first pipeline 20 is connected to the inlet of the first water flow channel 11, and the circulating cooling water is heated by the temperature control device 10 in the first water flow channel 11, and the heated circulating cooling water flows into the breeding pool. Therefore, by selectively connecting the outlet of the first pipeline 20 to one of the inlet of the first water flow channel 11 and the breeding pool 40, the temperature of the circulating cooling water entering the breeding pool 40 can be controlled to meet the different temperature requirements of the breeding pool 40.

[0036] During aquaculture, the temperature of the aquaculture pond 40 has a certain impact on the survival rate and growth rate of fry. By adjusting the water temperature of the aquaculture pond 40, the economic benefits of aquaculture can be effectively improved. In the embodiment of the present application, the waste heat of circulating cooling water is utilized for aquaculture, which can recycle the waste heat of the circulating cooling water, save energy, and generate huge economic benefits. At the same time, it can also protect natural waters from thermal pollution and protect the environment.

[0037] In some embodiments of the present invention, the cooling water waste heat recovery system 100 for aquaculture may further include a water mixing device 30, which is suitable for connecting to a water supply source 300, and has a water mixing device inlet 31 and a water mixing device outlet 32. The water mixing device inlet 31 is connected to the outlet of the first water flow channel 11, and the water mixing device outlet 32 is suitable for connecting to the aquaculture pool 40, so that the water mixing device 30 connects the first water flow channel 11 and the aquaculture pool 40; and the outlet of the first pipeline 20 is selectively connected to the water mixing device inlet 31 so that the water mixing device 30 connects the first pipeline 20 and the aquaculture pool 40.

[0038] The water mixing device 30 is connected to the water replenishment source 300. Water in the water replenishment source 300 can enter the water mixing device 30. A water replenishment pump 310 can be provided between the water replenishment source 300 and the water mixing device 30. When the water replenishment pump 310 is in operation, the water replenishment pump 310 can transport water from the water replenishment source 300 to the water mixing device 30, thereby ensuring that the water replenishment source 300 can replenish water to the water mixing device 30. The water mixing device 30 has a water mixing device inlet 31 and a water mixing device outlet 32. The water mixing device inlet 31 can be connected to the outlet of the first water flow channel 11, and the water mixing device outlet 32 can be connected to the aquaculture pool 40. The water mixing device 30 can connect the first water flow channel 11 and the aquaculture pool 40.

[0039] The inlet 31 of the mixing device can also be connected to the outlet of the first pipeline 20. When the circulating cooling water does not need to be heated, the outlet of the first pipeline 20 can be selectively connected to the inlet 31 of the mixing device, so that the circulating cooling water can directly enter the mixing device 30 after flowing out of the first pipeline 20. The circulating cooling water directly enters the mixing device 30 through the first pipeline 20, and the water in the water supply source 300 also flows into the mixing device 30. The circulating cooling water and the water from the water supply source 300 are mixed and temperature-controlled in the mixing device 30. The temperature of the mixed water can be adjusted to the temperature required by the aquaculture pool 40. The mixed water flows into the aquaculture pool 40, keeping the aquaculture pool 40 at an appropriate temperature, thereby achieving the effect of utilizing the waste heat of the circulating cooling water to adjust the temperature of the aquaculture pool 40.

[0040] In some embodiments of the present invention, the cooling water waste heat recovery system 100 for aquaculture may further include a heat exchanger 50, which is formed with a first heat exchange channel 51 and a second heat exchange channel 52. The first heat exchange channel 51 and the second heat exchange channel 52 cooperate in heat exchange. The first heat exchange channel 51 is used to connect the water mixing device 30 and the water supply source 300, and the second heat exchange channel 52 is used to connect the aquaculture pool 40.

[0041] The heat exchanger 50 has a first heat exchange channel 51 and a second heat exchange channel 52, which can cooperate to exchange heat. The first heat exchange channel 51 connects the water mixing device 30 and the water supply source 300, allowing water from the water supply source 300 to flow into the water mixing device 30 through the first heat exchange channel 51. The second heat exchange channel 52 connects to the aquaculture pool 40, allowing wastewater from the aquaculture pool 40 to be discharged from the aquaculture pool 40 through the second heat exchange channel 52. The first heat exchange channel 51 can cooperate with the second heat exchange channel 52 for heat exchange. The heat exchanger 50 can use the waste heat of the sewage discharged from the aquaculture pond 40 to heat the water in the water supply source 300 flowing to the water mixing device 30. When the water in the water supply source 300 flows in the first heat exchange channel 51 and the sewage from the aquaculture pond 40 flows in the second heat exchange channel 52, the waste heat of the sewage in the second heat exchange channel 52 can make the water in the first heat exchange channel 51 heat up. The heated water enters the water mixing device 30 and is mixed with the circulating cooling water from the thermal power plant 200 for temperature adjustment.

[0042] In some embodiments of the present invention, the cooling water waste heat recovery system 100 for aquaculture may further include a first water pump 41, which is connected between the water mixing device outlet 32 and the aquaculture pool 40. The water in the water mixing device 30 can be transported to the aquaculture pool 40 by the first water pump 41. The first water pump 41 can increase the water pressure so that the water in the water mixing device 30 can flow smoothly into the aquaculture pool 40, which is conducive to improving the efficiency of the water flow from the water mixing device 30 to the aquaculture pool 40, thereby achieving the effect of utilizing the waste heat of the circulating cooling water for aquaculture.

[0043] In some embodiments of the present invention, the cooling water waste heat recovery system 100 for aquaculture may further include a regulating valve 60, which has a first interface 61, a second interface 62 and a third interface 63. The first interface 61 is connected to the outlet of the first pipeline 20, the second interface 62 is connected to the inlet of the first water channel 11, and the third interface 63 is connected to the inlet 31 of the water mixing device. The first interface 61 is selectively connected to one of the second interface 62 and the third interface 63.

[0044] The first interface 61 can be connected to the second interface 62, thereby connecting the first pipeline 20 and the first water flow channel 11, or the first interface 61 can be connected to the third interface 63, thereby connecting the first pipeline 20 and the water mixing device 30. One of the second interface 62 and the third interface 63 is selectively closed, and the second interface 62 and the third interface 63 are not opened at the same time, and the second interface 62 and the third interface 63 are not closed at the same time. When the second interface 62 is opened, the third interface 63 is closed, and when the third interface 63 is opened, the second interface 62 is closed, thereby achieving the first interface 61 selectively connecting to one of the second interface 62 and the third interface 63.

[0045] When the first interface 61 is connected to the second interface 62, the outlet of the first pipeline 20 is connected to the inlet of the first water channel 11, and the circulating cooling water can flow into the first water channel 11 through the first pipeline 20, where it can be heated by the temperature control device 10. When the first interface 61 is connected to the third interface 63, the outlet of the first pipeline 20 is connected to the inlet 31 of the water mixing device, and the circulating cooling water can flow into the water mixing device 30 through the first pipeline 20. By controlling the regulating valve 60 to connect the first interface 61 with the second interface 62 or the first interface 61 with the third interface 63, it is possible to control whether the circulating cooling water is heated by the temperature control device 10, thereby adjusting the temperature of the circulating cooling water. When the circulating cooling water enters the water mixing device 30 directly without being heated, the circulating cooling water can use its own waste heat to adjust the water temperature within the water mixing device 30.

[0046] In some embodiments of the present invention, the cooling water waste heat recovery system 100 for aquaculture may further include a second pipeline 70, the inlet of the second pipeline 70 is connected to the outlet of the first water channel 11 and the third interface 63, the outlet of the second pipeline 70 is connected to the inlet 31 of the water mixing device, and the second pipeline 70 is provided with a second water pump 71.

[0047] The inlet of the second pipeline 70 is connected to the outlet of the first water flow channel 11. The inlet of the second pipeline 70 is connected to the third port 63. When the first port 61 is connected to the second port 62, or when the first port 61 is connected to the third port 63, the circulating cooling water can flow from the first pipeline 20 into the second pipeline 70. The outlet of the second pipeline 70 is connected to the inlet 31 of the water mixing device, allowing the circulating cooling water in the second pipeline 70 to enter the water mixing device 30 for mixing and temperature adjustment. A second water pump 71 is also provided in the second pipeline 70. The second water pump 71 can drive the circulating cooling water into the water mixing device 30. The second water pump 71 can increase the pressure of the circulating cooling water, allowing the circulating cooling water to flow smoothly into the water mixing device 30.

[0048] In some embodiments of the present invention, the cooling water waste heat recovery system 100 for aquaculture may further include a heating device, which is disposed in the second pipeline 70. The heating device can heat the water in the second pipeline 70. When the temperature of the circulating cooling water in the second pipeline 70 is too low, the heating device heats the circulating cooling water in the second pipeline 70 so that the circulating cooling water meets the water temperature requirement of the water mixing device 30.

[0049] In some embodiments of the present invention, the water mixing device 30 is provided with a temperature detection element, which is used to detect the temperature of water in the water mixing device 30 .

[0050] Circulating cooling water and water from the water supply source 300 can be mixed and temperature-controlled within the water mixing device 30. The circulating cooling water can be heated before entering the water mixing device 30, and the water from the water supply source 300 can be heated by heat exchange with wastewater from the aquaculture pool 40 before entering the water mixing device 30. A temperature sensor is provided within the water mixing device 30 to detect the temperature of the water within the water mixing device 30. Based on the temperature detected by the temperature sensor, the water mixing device 30 can adjust the temperature required by the aquaculture pool 40 to meet aquaculture needs, thereby allowing the water within the water mixing device 30 to replenish the aquaculture pool 40.

[0051] In some embodiments of the present invention, the temperature control device 10 also has a second water flow channel 12, which is used to connect the circulating cooling water outlet 220 and the circulating cooling water inlet 210 of the thermal power plant 200, and the temperature control device 10 is used to absorb the temperature of the water flowing into the second water flow channel 12.

[0052] The temperature control device 10 includes a second water flow channel 12, which can absorb the temperature of water flowing into the second water flow channel 12. One end of the second water flow channel 12 is connected to the circulating cooling water outlet 220 of the thermal power plant 200, and the other end of the second water flow channel 12 is connected to the circulating cooling water inlet 210. Circulating cooling water can flow into the second water flow channel 12 through the first pipeline 20. When the circulating cooling water enters the first pipeline 20 from the circulating cooling water outlet 220 and then enters the second water flow channel 12, the temperature control device 10 can absorb the waste heat of the circulating cooling water in the second water flow channel 12. The waste heat of the circulating cooling water in the second water flow channel 12 can provide energy for the operation of the temperature control device 10. The temperature of the circulating cooling water in the second water flow channel 12 decreases, and the cooled circulating cooling water flows back to the thermal power plant 200 through the circulating cooling water inlet 210, continuing to cool related equipment in the thermal power plant 200 that requires cooling, thereby improving the energy utilization rate of the thermal power plant 200.

[0053] In some embodiments of the present invention, the temperature control device 10 is an absorption heat pump unit.

[0054] The thermal power plant 200 is equipped with a steam turbine 230. The absorption heat pump unit can extract a portion of the steam from the steam turbine 230 in the thermal power plant 200 as the driving heat source for the absorption heat pump unit, thereby achieving the heating and cooling functions of the temperature control device 10. The absorption heat pump unit can be equipped with an evaporator, an absorber, and a condenser. The circulating cooling water in the second water flow channel 12 enters the evaporator of the absorption heat pump unit to achieve cooling, thereby achieving the effect of the cooled circulating cooling water flowing back to the thermal power plant 200, thereby further cooling the relevant equipment of the thermal power plant 200. The circulating cooling water in the first water flow channel 11 enters the absorber and condenser of the absorption heat pump unit to achieve heating and temperature increase, thereby achieving the effect of the high-temperature circulating cooling water entering the water mixing device 30 and mixing with the water from the make-up water source 300 to achieve temperature control.

[0055] Other structures and operations of the cooling water waste heat recovery system 100 for aquaculture according to the embodiment of the present invention are known to ordinary technicians in this field and will not be described in detail here.

[0056] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cooling water waste heat recovery system for aquaculture, characterized in that: include: A temperature regulating device (10), the temperature regulating device (10) having a first water flow channel (11), the outlet of the first water flow channel (11) being connected to the aquaculture pond (40), and the temperature regulating device (10) being used to heat water flowing into the first water flow channel (11); A first pipeline (20), the inlet of the first pipeline (20) is used to communicate with the circulating cooling water outlet (220) of the thermal power plant (200), and the outlet of the first pipeline (20) is selectively connected to the inlet of the first water channel (11) and one of the aquaculture ponds (40).

2. The cooling water waste heat recovery system for aquaculture according to claim 1, characterized in that: Also includes: a water mixing device (30), the water mixing device (30) being adapted to be in communication with a water supply source (300), the water mixing device (30) comprising a water mixing device inlet (31) and a water mixing device outlet (32), the water mixing device inlet (31) being in communication with the outlet of the first water flow channel (11), the water mixing device outlet (32) being adapted to be in communication with the aquaculture pool (40), so that the water mixing device (30) is in communication with the first water flow channel (11) and the aquaculture pool (40); The outlet of the first pipeline (20) is selectively connected to the inlet (31) of the water mixing device so that the water mixing device (30) is connected to the first pipeline (20) and the breeding pond (40).

3. The cooling water waste heat recovery system for aquaculture according to claim 2, characterized in that: Also includes: A heat exchanger (50) is formed with a first heat exchange channel (51) and a second heat exchange channel (52), wherein the first heat exchange channel (51) and the second heat exchange channel (52) cooperate in heat exchange, the first heat exchange channel (51) is used to connect the water mixing device (30) and the water supply source (300), and the second heat exchange channel (52) is used to connect the aquaculture pond (40).

4. The cooling water waste heat recovery system for aquaculture according to claim 2, characterized in that: Also includes: A first water pump (41), the first water pump (41) is connected between the outlet of the water mixing device (32) and the breeding pond (40).

5. The cooling water waste heat recovery system for aquaculture according to claim 2, characterized in that: Also includes: A regulating valve (60), the regulating valve (60) having a first interface (61), a second interface (62) and a third interface (63), the first interface (61) being connected to the outlet of the first pipeline (20), the second interface (62) being connected to the inlet of the first water flow channel (11), the third interface (63) being connected to the inlet (31) of the water mixing device, and the first interface (61) being selectively connected to one of the second interface (62) and the third interface (63).

6. The cooling water waste heat recovery system for aquaculture according to claim 5, characterized in that: Also includes: A second pipeline (70), the inlet of the second pipeline (70) is connected to the outlet of the first water channel (11) and the third interface (63), the outlet of the second pipeline (70) is connected to the inlet (31) of the water mixing device, and the second pipeline (70) is provided with a second water pump (71).

7. The cooling water waste heat recovery system for aquaculture according to claim 6, characterized in that: Also includes: A heating device is provided in the second pipeline (70).

8. The cooling water waste heat recovery system for aquaculture according to claim 2, characterized in that: The water mixing device (30) is provided with a temperature detection component, and the temperature detection component is used to detect the temperature of water in the water mixing device (30).

9. The cooling water waste heat recovery system for aquaculture according to any one of claims 1 to 8, characterized in that: The temperature regulating device (10) further comprises a second water flow channel (12), the second water flow channel (12) being used to connect the circulating cooling water outlet (220) and the circulating cooling water inlet (210) of the thermal power plant (200), and the temperature regulating device (10) being used to absorb heat from water flowing into the second water flow channel (12).

10. The cooling water waste heat recovery system for aquaculture according to any one of claims 1 to 8, characterized in that: The temperature regulating device (10) is an absorption heat pump unit.

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