A mobile, modular heating system for marine aquaculture based on industrial waste heat

Abstract

A mobile, modular heating system for aquaculture based on industrial waste heat, belonging to the field of energy conservation and environmental protection, addresses the problems of low heating efficiency and high maintenance and operating costs of existing heating devices used in aquaculture ponds. The heating system includes a boiler, an economizer, a spray tower, a plate heat exchanger, a heat pump, a mobile, modular heat exchange chamber, a main heating pipeline, a main return water pipeline, and an aquaculture area, comprising multiple aquaculture ponds. The main heating pipeline includes one hot water input and multiple hot water outputs; the main return water pipeline includes multiple return water inputs and one return water output. The heat source used in this application is industrial waste heat, which, compared to existing heating methods, eliminates the need for reheating, significantly reducing operating costs and achieving zero-heat-cost heating. This makes the operating and maintenance costs of the heating device lower than those of existing heating devices.

Description

Technical Field

[0001] This invention belongs to the field of energy conservation and environmental protection, and specifically relates to a mobile, modular marine aquaculture heating system based on industrial waste heat. Background Technology

[0002] In the field of aquaculture, the most common heating methods are boiler pipe heating and electric heating tube heating.

[0003] The drawbacks of boiler pipe heating are that the operating cycle costs of the oil-fired boilers and electric boilers used for heating are too high, especially electric boilers, which have a relatively low energy utilization rate. Oil-fired boilers are prone to producing greenhouse gases and dust waste during operation, and also produce a large amount of sulfur-containing substances, which cause great harm to the environment. In addition, the equipment used in boiler pipe heating has a large heat loss, which not only wastes resources but also occupies a lot of space. Due to the large number of auxiliary equipment, it lacks mobility, resulting in relatively poor operational flexibility.

[0004] The drawbacks of electric heating tubes are that the tubes are very prone to oxidation and rust, especially in seawater with high salt content. Corrosion is difficult to overcome, and the pipes need to be cleaned of scale regularly to maintain heating efficiency. Otherwise, there will be significant safety hazards in the heating device. Moreover, the electricity cost is relatively high, resulting in high operating costs.

[0005] Industrial waste heat is a good source of heat energy. Using industrial waste heat as a heating source for aquaculture can effectively solve the drawbacks of existing heating methods. However, there is currently no heating system that can apply industrial waste heat to aquaculture. As a result, existing aquaculture users are suffering from low heating efficiency while also bearing the high maintenance and operating costs of traditional aquaculture heating devices. Summary of the Invention

[0006] This invention addresses the problem of low heating efficiency and high maintenance and operating costs of existing heating devices used in aquaculture ponds, and further develops a mobile, modular marine aquaculture heating system based on industrial waste heat.

[0007] A mobile, modular heating system for marine aquaculture based on industrial waste heat, the heating system comprising a boiler, an economizer, a spray tower, a plate heat exchanger, a heat pump, a mobile, modular heat exchange chamber, a main heating pipeline, a main return water pipeline, and an aquaculture area;

[0008] The aquaculture area includes multiple aquaculture ponds;

[0009] The main heating pipeline includes a hot water inlet and multiple hot water outlets;

[0010] The main return water pipeline includes multiple return water inlets and one return water outlet.

[0011] The waste heat output terminal of the boiler is connected to the hot air input terminal of the economizer via a pipe. The hot air output terminal of the economizer is connected to the hot air input terminal of the spray tower via a pipe. The hot water output terminal of the spray tower is connected to the hot water input terminal on the heating side of the plate heat exchanger via a pipe. The cold water output terminal on the heating side of the plate heat exchanger is connected to the return water pipe at the top of the spray tower via a pipe. The outlet terminal on the heat exchange side of the plate heat exchanger is connected to the hot water input terminal on the heating side of the heat pump via a pipe. The cold water output terminal on the heating side of the heat pump is connected to the inlet terminal on the heat exchange side of the plate heat exchanger via a pipe. The outlet terminal on the heat exchange side of the heat pump is connected to the economizer via a pipe. The hot water input terminal is connected to the hot water output terminal of the energy-saving device, which is connected to the hot water input terminal of the heating side of the movable assembly heat exchange chamber through a pipe. The cold water output terminal of the heating side of the movable assembly heat exchange chamber is connected to the inlet terminal of the heat exchange side of the heat pump through a pipe. The outlet terminal of the heat exchange side of the movable assembly heat exchange chamber is connected to the hot water input terminal of the main heating pipeline. Each hot water output terminal in the main heating pipeline is connected to the hot water input terminal of a corresponding aquaculture pond. The return water output terminal of each aquaculture pond is connected to a return water input terminal in the return water pipeline. The return water output terminal in the return water pipeline is connected to the inlet terminal of the heat exchange side of the movable assembly heat exchange chamber.

[0012] Furthermore, the movable assembly heat exchange chamber includes N containers, N corrugated pipes, and N-1 connecting pipes. The N containers are arranged sequentially, with a connecting pipe between any two adjacent containers. The N containers are connected through the N-1 connecting pipes to form the heat exchange chamber. The outlet of the heat exchange chamber is connected to the hot water input of the main heating pipeline, and the inlet of the heat exchange chamber is connected to the return water output of the main return water pipeline. Each container is equipped with a corrugated pipe, and the inlet of each corrugated pipe is connected to the hot water output of the energy-saving device through a pipe. The output of each corrugated pipe is connected to the inlet of the heat exchange side of the heat pump through a pipe. The heat exchange chamber composed of the N containers is the heat exchange side of the movable assembly heat exchange chamber, and the N corrugated pipes are the heating side of the movable assembly heat exchange chamber.

[0013] Furthermore, a No. 1 water pump is connected in series on the connecting pipe between the hot water output end in the spray tower and the hot water input end on the heating side of the plate heat exchanger; a No. 2 water pump is connected in series on the connecting pipe between the water outlet end on the heat exchange side of the plate heat exchanger and the hot water input end on the heating side of the heat pump; and a No. 3 water pump is connected in series on the connecting pipe between the cold water output end on the heating side of the movable assembly heat exchange chamber and the water inlet end on the heat exchange side of the heat pump.

[0014] Furthermore, a flow limiting valve is connected in series on the main heating pipeline. The flow limiting valve is located near the hot water input end of the main heating pipeline. A fourth water pump is installed between the outlet end of the heat exchange side in the movable heat exchange chamber and the flow limiting valve. The fourth water pump is connected in series on the main heating pipeline.

[0015] Furthermore, a temperature sensor is connected in series on the main heating pipeline, and the temperature sensor is located near the outlet end of the heat exchange side in the movable heat exchange chamber.

[0016] Furthermore, a second temperature sensor is connected in series on the main return water pipe, and the second temperature sensor is located near the water inlet end on the heat exchange side of the movable assembly heat exchange chamber.

[0017] Furthermore, a No. 3 flow limiting valve is connected in series at each hot water output end in the main heating pipeline, and a No. 1 pressure detector is installed between the No. 3 flow limiting valve and the hot water input end of the corresponding breeding pond. The No. 1 pressure detector is connected in series at one of the hot water output ends in the main heating pipeline.

[0018] Furthermore, a No. 2 flow limiting valve is connected in series at each return water input end in the main return water pipeline, and a No. 2 pressure detector is installed between the No. 2 flow limiting valve and the return water output end of the corresponding aquaculture pond. The No. 2 pressure detector is connected in series at one of the return water input ends in the main return water pipeline.

[0019] Furthermore, a No. 3 temperature sensor is connected in series on the control terminal of each No. 3 flow limiting valve, and the sensing terminal of the No. 3 temperature sensor is set in the aquaculture pond.

[0020] The beneficial effects of this application compared to the prior art are:

[0021] 1. The present invention proposes a mobile, modular marine aquaculture heating system based on industrial waste heat. The heat source used is industrial waste heat. Compared with existing heating methods, no reheating process is required (only the industrial waste heat needs to be extracted and used), which greatly reduces operating costs and achieves zero-heat-cost heating. The operating and maintenance costs of the heating device are lower than those of existing heating devices.

[0022] 2. The present invention proposes a mobile, modular marine aquaculture heating system based on industrial waste heat. The waste heat transfer station for industrial waste heat extraction is mobile (mobile, modular heat exchange chamber). According to the scale of marine aquaculture, the system can be assembled into the required scale of the waste heat transfer station through the equipment's flexible joints. This allows the entire heating device to be autonomously adjusted according to the scale of marine aquaculture, making it highly flexible and energy-efficient. Moreover, the design of this mobile, modular heat exchange chamber is combined with the actual marine aquaculture conditions, resulting in higher heating efficiency during use and improving the stability of the heating process. Attached Figure Description

[0023] Figure 1 This is a connection diagram of the heating system described in this invention;

[0024] Figure 2 This is a schematic diagram of the movable heat exchange chamber in the heating system described in this invention.

[0025] The diagram shows: 1. Boiler; 2. Eco-friendly device; 3. Spray tower; 4. Plate heat exchanger; 5. Heat pump; 6. Movable assembly heat exchange chamber; 7. Aquaculture pond; 8. Water pump No. 1; 9. Water pump No. 2; 10. Water pump No. 3; 11. Water pump No. 4; 12. Flow limiting valve No. 1; 13. Temperature sensor No. 1; 14. Temperature sensor No. 2; 15. Flow limiting valve No. 2; 16. Flow limiting valve No. 3; 17. Pressure detector No. 1; 18. Pressure detector No. 2; and 19. Temperature sensor No. 3. Detailed Implementation

[0026] Specific implementation method one: Combining Figures 1 to 2 This embodiment describes a mobile, modular marine aquaculture heating system based on industrial waste heat. The heating system includes a boiler 1, an energy-saving device 2, a spray tower 3, a plate heat exchanger 4, a heat pump 5, a mobile, modular heat exchange chamber 6, a main heating pipeline, a main return water pipeline, and an aquaculture area.

[0027] The aquaculture area includes multiple aquaculture ponds 7;

[0028] The main heating pipeline includes a hot water inlet and multiple hot water outlets;

[0029] The main return water pipeline includes multiple return water inlets and one return water outlet.

[0030] The waste heat output terminal of boiler 1 is connected to the hot air input terminal of energy-saving device 2 via a pipe. The hot air output terminal of energy-saving device 2 is connected to the hot air input terminal of spray tower 3 via a pipe. The hot water output terminal of spray tower 3 is connected to the hot water input terminal on the heating side of plate heat exchanger 4 via a pipe. The cold water output terminal on the heating side of plate heat exchanger 4 is connected to the return water pipe at the top of spray tower 3 via a pipe. The water outlet terminal on the heat exchange side of plate heat exchanger 4 is connected to the hot water input terminal on the heating side of heat pump 5 via a pipe. The cold water output terminal on the heating side of heat pump 5 is connected to the water inlet terminal on the heat exchange side of plate heat exchanger 4 via a pipe. The water outlet terminal on the heat exchange side of heat pump 5 is connected to the energy-saving device 2 via a pipe. The hot water input terminal of the energy-saving device 2 is connected, and the hot water output terminal of the energy-saving device 2 is connected to the hot water input terminal on the heating side of the movable assembly heat exchange chamber 6 through a pipe. The cold water output terminal on the heating side of the movable assembly heat exchange chamber 6 is connected to the inlet terminal on the heat exchange side of the heat pump 5 through a pipe. The outlet terminal on the heat exchange side of the movable assembly heat exchange chamber 6 is connected to the hot water input terminal of the main heating pipeline. Each hot water output terminal in the main heating pipeline is connected to the hot water input terminal of a corresponding aquaculture pond 7. The return water output terminal of each aquaculture pond 7 is connected to a return water input terminal in the return water pipeline. The return water output terminal in the return water pipeline is connected to the inlet terminal on the heat exchange side of the movable assembly heat exchange chamber 6.

[0031] In this embodiment, the number of aquaculture ponds 7 is taken as 16. To ensure the uniformity and synchronization of hot water supply to the aquaculture ponds 7, a dual heating main pipeline design is adopted, combined with... Figure 1 Each main heating pipeline supplies water to 8 aquaculture ponds 7, while four main return water pipelines are used to return cold water to all aquaculture ponds, with each main return water pipeline serving four aquaculture ponds 7.

[0032] Specific Implementation Method Two: Combining Figures 1 to 2 This embodiment differs from specific embodiment one in that the movable assembly heat exchange chamber 6 comprises N containers 61, N corrugated pipes 62, and N-1 connecting pipes 63. The N containers 61 are arranged sequentially, with a connecting pipe 63 between adjacent containers 61. The N containers 61 are connected through the N-1 connecting pipes 63 to form the heat exchange chamber. The outlet of the heat exchange chamber is connected to the hot water input of the main heating pipeline, and the inlet of the heat exchange chamber is connected to the return water output of the main return water pipeline. Each container 61 has a corresponding corrugated pipe 62, and the inlet of each corrugated pipe 62 is connected to the hot water output of the energy saver 2 through a pipe. The output of each corrugated pipe 62 is connected to the inlet of the heat exchange side of the heat pump 5 through a pipe. The heat exchange chamber composed of the N containers 61 is the heat exchange side of the movable assembly heat exchange chamber 6, and the N corrugated pipes 62 are the heating side of the movable assembly heat exchange chamber 6. Other components and connections are the same as in specific embodiment one.

[0033] In this embodiment, taking 16 aquaculture ponds 7 as an example, in order to meet the water supply needs of the 16 aquaculture ponds 7, the movable assembly heat exchange chamber 6 uses three containers 61 as containers for the medium water on the heat exchange side. At the same time, the three containers 61 are connected by two connecting pipes 63, so that the three connecting pipes 63 can work as a whole heat exchange chamber. Each container 61 is equipped with a corrugated pipe 62, which serves as a container for the medium water on the heating side. The purpose of heat exchange is achieved through the temperature conversion between the medium water on the heating side and the medium water on the heat exchange side.

[0034] Specific implementation method three: Combining Figures 1 to 2 This embodiment differs from Specific Embodiment Two in that a first water pump 8 is connected in series on the connecting pipe between the hot water output end of the spray tower 3 and the hot water input end of the plate heat exchanger 4 on the heating side; a second water pump 9 is connected in series on the connecting pipe between the outlet end of the heat exchange side of the plate heat exchanger 4 and the hot water input end of the heat pump 5 on the heating side; and a third water pump 10 is connected in series on the connecting pipe between the cold water output end of the heating side of the movable heat exchange chamber 6 and the inlet end of the heat exchange side of the heat pump 5. Other components and connections are the same as in Specific Embodiment Two.

[0035] In this embodiment, pump 8, pump 9, and pump 10 are used to provide power for the flowing water in the system and improve the smoothness of the movement of the medium water in the system.

[0036] Specific implementation method four: Combination Figures 1 to 2 This embodiment differs from specific embodiment one in that a flow-limiting valve 12 is connected in series on the main heating pipeline. The flow-limiting valve 12 is positioned near the hot water input end of the main heating pipeline. A fourth water pump 11 is installed between the outlet end of the heat exchange side of the movable heat exchange chamber 6 and the flow-limiting valve 12, and the fourth water pump 11 is connected in series on the main heating pipeline. Other components and connections are the same as in specific embodiment three.

[0037] This setup ensures smooth water flow on the main heating pipeline, while controlling the flow of the medium water through the No. 1 flow limiting valve 12, providing intermittent working time for system cabinet inspection and maintenance.

[0038] Specific Implementation Method Five: Combining Figures 1 to 2 This embodiment differs from Specific Embodiment Four in that a No. 1 temperature sensor 13 is connected in series on the main heating pipe, and the No. 1 temperature sensor 13 is located near the outlet end of the heat exchange side in the movable heat exchange chamber 6. Other components and connections are the same as in Specific Embodiment Four.

[0039] With this setup, the temperature of the medium water in the main heating pipeline can be detected by the No. 1 temperature sensor 13. If the temperature does not meet the standard, the operation of the main heating pipeline can be stopped by the No. 1 flow limiting valve 12, thereby enabling system maintenance.

[0040] Specific Implementation Method Six: Combination Figures 1 to 2 This embodiment differs from specific embodiment five in that a second temperature sensor 14 is connected in series on the return water main pipe, and the second temperature sensor 14 is located near the water inlet end on the heat exchange side of the movable heat exchange chamber 6. Other components and connections are the same as in specific embodiment five.

[0041] Specific implementation method seven: Combination Figures 1 to 2 This embodiment differs from Specific Embodiment Six in that a No. 3 flow-limiting valve 16 is connected in series at each hot water output terminal of the main heating pipeline. A No. 1 pressure detector 17 is installed between the No. 3 flow-limiting valve 16 and the corresponding hot water input terminal of the aquaculture tank 7. The No. 1 pressure detector 17 is connected in series at one of the hot water output terminals of the main heating pipeline. Other components and connections are the same as in Specific Embodiment Six.

[0042] With this setup, the working pressure of the water discharged from each hot water output terminal is detected by pressure detector 17 to ensure the safety of the supply. When the pressure value is too high, the corresponding hot water output terminal in the main heating pipeline can be closed by flow limiting valve 16 to ensure the safety of the system.

[0043] Specific implementation method eight: Combination Figures 1 to 2 This embodiment differs from specific embodiment seven in that a second flow-limiting valve 15 is connected in series at each return water input terminal in the main return water pipeline. A second pressure detector 18 is installed between the second flow-limiting valve 15 and the corresponding return water output terminal of the aquaculture pond 7. The second pressure detector 18 is connected in series at one of the return water input terminals in the main return water pipeline. Other components and connections are the same as in specific embodiment seven.

[0044] Specific Implementation Method Nine: Combining Figures 1 to 2 This embodiment differs from specific embodiment seven in that a third temperature sensor 19 is connected in series with the control terminal of each third flow limiting valve 16, and the sensing end of the third temperature sensor 19 is located in the aquaculture pond 7. Other components and connections are the same as in specific embodiment seven.

[0045] With this setup, the temperature value in each breeding pond 7 is detected by temperature sensor 19. When the temperature value reaches the standard, the hot water output can be stopped, and vice versa.

[0046] The present invention has been disclosed above with preferred embodiments, but it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

[0047] Working principle:

[0048] This invention provides a mobile, modular heating system for marine aquaculture based on industrial waste heat. It utilizes industrial flue gas waste heat to achieve zero-heating-cost heating for marine aquaculture. The main process is as follows:

[0049] 1. Waste Heat Extraction System: This invention utilizes waste heat from flue gas from a power plant near the aquaculture site. First, the flue gas, which is around 150°C, passes through an energy-saving device, reducing its temperature to around 70°C. Then, it enters a spray tower, where intermediate water sprays the flue gas to around 35°C. The absorbed heat is transferred to the circulating intermediate water, which then enters a heat pump system, raising its temperature to around 60°C before entering the energy-saving device. The waste heat from the flue gas is used for a secondary temperature increase, and the resulting hot water enters a mobile, modular heat exchanger room.

[0050] 2. Mobile Assembled Heat Exchange Chamber: The mobile assembled heat exchange chamber consists of multiple assemblable containers. Each mobile waste heat transfer container has a pre-installed connection interface on its side. After determining the number of containers based on the scale of aquaculture, they are transported by truck to a designated location and assembled into a waste heat transfer station of a certain scale. Simultaneously, based on temperature signals fed back from the aquaculture site, the opening of the regulating valve for each aquaculture hot water supply is controlled, precisely controlling the temperature of the aquaculture area.

[0051] 3. Aquaculture Client: Typically, based on the existing aquaculture area, the pipeline layout and instrument installation are improved, and temperature and pressure signals are fed back to the waste heat transfer station control box. The transfer station adjusts the valve opening of each grid area according to the feedback signals to ensure flow balance and temperature requirements.

Claims

1. A mobile, assembled, heat supply system for mariculture based on industrial waste heat, characterized in that: The heating system comprises a boiler (1), an economizer (2), a spray tower (3), a plate heat exchanger (4), a heat pump (5), a movable assembled heat exchange chamber (6), a heating main pipeline, a return water main pipeline and a breeding area; The breeding area comprises a plurality of breeding ponds (7); The heating main pipeline comprises a hot water input end and a plurality of hot water output ends; The return water main pipeline comprises a plurality of return water input ends and a return water output end; The waste heat output end of the boiler (1) is connected to the hot gas input end of the economizer (2) through a pipeline, the hot gas output end of the economizer (2) is connected to the hot gas input end of the spray tower (3) through a pipeline, the hot water output end of the spray tower (3) is connected to the hot water input end of the heat supply side of the plate heat exchanger (4), the cold water output end of the heat supply side of the plate heat exchanger (4) is connected to the return water pipe at the top of the spray tower (3) through a pipeline, the water outlet end of the heat exchange side of the plate heat exchanger (4) is connected to the hot water input end of the heat supply side of the heat pump (5) through a pipeline, the cold water output end of the heat supply side of the heat pump (5) is connected to the water inlet end of the heat exchange side of the plate heat exchanger (4) through a pipeline, the water outlet end of the heat exchange side of the heat pump (5) is connected to the hot water input end of the economizer (2) through a pipeline, the hot water output end of the economizer (2) is connected to the hot water input end of the heat supply side of the movable assembled heat exchange chamber (6) through a pipeline, the cold water output end of the heat supply side of the movable assembled heat exchange chamber (6) is connected to the water inlet end of the heat exchange side of the heat pump (5) through a pipeline, the water outlet end of the heat exchange side of the movable assembled heat exchange chamber (6) is connected to the hot water input end of the heating main pipeline, each hot water output end of the heating main pipeline is connected to the hot water input end of a corresponding breeding pond (7), the return water output end of each breeding pond (7) is connected to a return water input end of the return water main pipeline, and the return water output end of the return water main pipeline is connected to the water inlet end of the heat exchange side of the movable assembled heat exchange chamber (6). The movable assembled heat exchange chamber (6) comprises N container boxes (61), N corrugated pipes (62) and N-1 connecting pipes (63), the N container boxes (61) are arranged in sequence, one connecting pipe (63) is arranged between adjacent two container boxes (61), the N container boxes (61) are connected through the N-1 connecting pipes (63) to form a heat exchange chamber, the water outlet end of the heat exchange chamber is connected to the hot water input end of the heating main pipeline, the water inlet end of the heat exchange chamber is connected to the return water output end of the return water main pipeline, one corrugated pipe (62) is arranged in each container box (61), the input end of each corrugated pipe (62) is connected to the hot water output end of the economizer (2) through a pipeline, the output end of each corrugated pipe (62) is connected to the water inlet end of the heat exchange side of the heat pump (5) through a pipeline, the heat exchange chamber formed by the N container boxes (61) is the heat exchange side of the movable assembled heat exchange chamber (6), and the N corrugated pipes (62) are the heat supply side of the movable assembled heat exchange chamber (6).

2. A mobile, assembled, heat supply system for mariculture based on industrial waste heat according to claim 1, characterized in that: The communication pipeline between the hot water output end in the spray tower (3) and the hot water input end of the heat supply side in the plate heat exchanger (4) is connected in series with a first water pump (8), the communication pipeline between the water outlet end of the heat exchange side in the plate heat exchanger (4) and the hot water input end of the heat supply side in the heat pump (5) is connected in series with a second water pump (9), and the communication pipeline between the cold water output end of the heat supply side in the movable assembly heat exchange chamber (6) and the water inlet end of the heat exchange side in the heat pump (5) is connected in series with a third water pump (10).

3. A mobile, assembled, heat supply system for mariculture based on industrial waste heat according to claim 2, characterized in that: The heat supply main pipeline is connected in series with a first flow limiting valve (12), the first flow limiting valve (12) is arranged close to the hot water input end in the heat supply main pipeline, a fourth water pump (11) is arranged between the water outlet end of the heat exchange side in the movable assembly heat exchange chamber (6) and the first flow limiting valve (12), and the fourth water pump (11) is connected in series on the heat supply main pipeline.

4. A mobile, assembled, heat supply system for mariculture based on industrial waste heat according to claim 3, characterized in that: The heat supply main pipeline is connected in series with a first temperature sensor (13), and the first temperature sensor (13) is arranged close to the water outlet end of the heat exchange side in the movable assembly heat exchange chamber (6).

5. A mobile, assembled, heat supply system for mariculture based on industrial waste heat according to claim 4, characterized in that: The return water main pipeline is connected in series with a second temperature sensor (14), and the second temperature sensor (14) is arranged close to the water inlet end of the heat exchange side in the movable assembly heat exchange chamber (6).

6. A mobile, assembled, heat supply system for mariculture based on industrial waste heat according to claim 5, characterized in that: Each hot water output end in the heat supply main pipeline is connected in series with a third flow limiting valve (16), a first pressure detector (17) is arranged between the third flow limiting valve (16) and the hot water input end of the corresponding breeding pond (7), and the first pressure detector (17) is connected in series on the hot water output end in the heat supply main pipeline.

7. A mobile, assembled, heat supply system for mariculture based on industrial waste heat according to claim 6, characterized in that: Each return water input end in the return water main pipeline is connected in series with a second flow limiting valve (15), a second pressure detector (18) is arranged between the second flow limiting valve (15) and the return water output end of the corresponding breeding pond (7), and the second pressure detector (18) is connected in series on the return water input end in the return water main pipeline.

8. A mobile, assembled, heat supply system for mariculture based on industrial waste heat according to claim 7, characterized in that: A third temperature sensor (19) is connected in series on the control end of each third flow limiting valve (16), and the sensing end of the third temperature sensor (19) is arranged in the breeding pond (7).

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