CN213784894U - Culture pond system with circulating water temperature is adjusted - Google Patents

Culture pond system with circulating water temperature is adjusted Download PDF

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CN213784894U
CN213784894U CN202022754082.2U CN202022754082U CN213784894U CN 213784894 U CN213784894 U CN 213784894U CN 202022754082 U CN202022754082 U CN 202022754082U CN 213784894 U CN213784894 U CN 213784894U
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fluid channel
way valve
heat
heat exchanger
opening
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张乾熙
俞国燕
黄洋
贾明生
刘高珍
何明
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Guangdong Ocean University
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Guangdong Ocean University
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Abstract

The utility model provides a culture pond system with circulating water temperature regulation, which comprises a heat pump heat supply system, an energy storage system, a culture pond, a first heat exchanger, a second heat exchanger, a mixed water tank and a first three-way valve, wherein the culture pond, the first heat exchanger, the second heat exchanger, the mixed water tank and the first three-way valve are sequentially connected and form water circulation; the energy storage system flexibly uses valley electricity to store and discharge energy, and can heat up in winter and cool down in summer by matching with the structural particularity of the heat pump heat supply system; the heat collection system reasonably utilizes renewable energy sources such as solar energy to carry out heat compensation on the culture pond in winter, the utilization rate of the energy is improved, and the operation cost of the culture pond is reduced to a great extent.

Description

Culture pond system with circulating water temperature is adjusted
Technical Field
The utility model relates to a breed pond temperature control equipment field, more specifically relates to a breed pond system with circulating water temperature is adjusted.
Background
Compare in traditional aquatic products breeding mode, the optimization of a series of systems such as recirculating aquaculture mode accessible water processing system, water temperature regulating system possess the advantage that pollutes fewly, the water resource that consumes is few, relies on few to the environment, but recirculating aquaculture's water temperature control and operation cost become the key problem.
The solar energy resources in China are rich, the average total annual radiation in most areas is nearly 5000 MJ/square meter, and the average annual heat radiation time length reaches 2200h, so that the solar energy is a good water body heating resource, and the solar energy is widely accepted as the green energy most expected by mankind in the 21 st century; although energy-saving and environment-friendly, solar energy also needs to be complemented with solar energy by using another temperature regulation mode due to instability and intermittency, and the temperature regulation mode is just a heat pump technology. The heat pump can convert a large amount of low-grade heat energy into high-grade heat energy at the cost of consuming a small amount of electricity. Meanwhile, due to the structural particularity of the heat pump, the temperature can be reduced in summer; valley electricity is the document spirit of the joint issuance of the economic trade committee electricity industry bureau of the price bureau of things, and because the electricity consumption at night causes a large amount of loss of electricity, the electricity price at the valley time period is changed to attract users to use electricity at the valley time period at night, the valley electricity price is only 1/3 of the peak electricity price, and enterprises can convert the electricity at the valley time period into heat energy by using an energy storage technology to store the heat energy for use in the daytime; the fresh water make-up water generally only accounts for 2% -10% of the total volume of the culture pond, the required load accounts for 4% -20% of the total load, if the fresh water is directly injected into a circulating water system for direct temperature adjustment, the accuracy of temperature system regulation and control can be affected due to overlarge temperature difference, and if a temperature control system is independently arranged for the fresh water, or the temperature control system is inconsistent, the complexity of system control is increased.
The existing circulating water culture pond system only adopts a heat pump to supply heat or cool, the consumed energy is electric power generally, and no means of energy compensation and energy storage exists, so that the energy utilization rate is low, and the operation cost is high; and the temperature adjusting ability in winter and summer is not strong. For example, chinese patent CN108849698A discloses a "constant temperature aquaculture pond using heat pump", which uses heat pump as main cold source and heat source of aquaculture pond, and auxiliary electric heating as standby heat source to ensure the culture pond to be constant temperature all year round. The chinese patent CN108849698A does not disclose a technical means for flexibly adjusting the water temperature of the recirculating aquaculture pond by using valley electricity and renewable energy to reduce the operation cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned background art present not yet nimble temperature that adopts millet electricity and renewable energy to carry out circulating water culture pond of adopting adjusts to reduce the problem of the technological means of operation cost, provide a breed pond system with circulating water temperature is adjusted.
In order to solve the technical problem, the utility model discloses a technical scheme is: the cultivation pond system with the circulating water temperature regulation function comprises a heat pump heat supply system, an energy storage system, a cultivation pond, a first heat exchanger, a second heat exchanger, a mixed water tank and a first three-way valve, wherein the cultivation pond, the first heat exchanger, the second heat exchanger, the mixed water tank and the first three-way valve are sequentially connected and form water circulation; the first heat exchanger comprises a first fluid channel and a second fluid channel which can perform heat exchange, the second heat exchanger comprises a third fluid channel and a fourth fluid channel which can perform heat exchange, one end of the first fluid channel is connected with the culture pond, one end of the third fluid channel is connected with the other end of the first fluid channel, the other end of the third fluid channel is connected with the mixed water tank, and two ends of the second fluid channel are also connected with a heat collection system; the energy storage system is connected to two ends of the fourth fluid channel; the heat pump heat supply system is in heat exchange connection with the energy storage system through a third heat exchanger, and the mixed water tank is connected with the energy storage system through a fresh water supply system.
Furthermore, the heat collecting system is a solar heat collecting device, the solar heat collecting device is connected to two ends of the second fluid channel through a heat collecting pipeline, and a control valve is arranged on the heat collecting pipeline.
Furthermore, the energy storage system comprises an energy storage tank, a first regulating valve, a second regulating valve, an energy storage working medium pump, a second three-way valve and a third three-way valve, wherein a first opening of the second three-way valve is connected with one end of the fourth fluid channel, a second opening of the second three-way valve is simultaneously connected with the other end of the fourth fluid channel and a first opening of the third three-way valve respectively, a third opening of the third three-way valve is connected with the third heat exchanger and a third opening of the third three-way valve is connected with the fresh water supply system, one end of the energy storage tank is connected with one end of the first regulating valve, the other end of the first regulating valve is simultaneously connected with one end of the third heat exchanger and one end of the second regulating valve respectively, the other end of the second regulating valve is simultaneously connected with the other end of the energy storage tank and the other end of the energy storage working medium pump respectively, and a first water temperature sensor is also arranged on a connecting pipe between the energy storage tank and the energy storage working medium pump.
Furthermore, the third heat exchanger comprises a fifth fluid channel and a sixth fluid channel which can exchange heat with each other, one end of the fifth fluid channel is connected with the other end of the first regulating valve, the other end of the fifth fluid channel is connected with a second opening of the third three-way valve, and the heat pump heating system is connected with two ends of the sixth fluid channel.
Further, the heat pump heating system comprises a compressor, a four-way valve, a fourth heat exchanger and a throttling device, wherein the fourth heat exchanger comprises a seventh fluid channel and an eighth fluid channel used for conveying external seawater, one end of the compressor is connected with a first opening of the four-way valve, the other end of the compressor is connected with a second opening of the four-way valve, a third opening of the four-way valve is connected with one end of the sixth fluid channel, a fourth opening of the four-way valve is connected with one end of the seventh fluid channel, and two ends of the throttling device are respectively connected with the other end of the sixth fluid channel and the other end of the seventh fluid channel.
Furthermore, the fresh water replenishing system comprises a fifth heat exchanger and a fourth three-way valve used for connecting an external water supply device, the fifth heat exchanger comprises a ninth fluid channel and a tenth fluid channel which can exchange heat, one end of the ninth fluid channel is connected with a third opening of the third three-way valve, the other end of the ninth fluid channel is connected with a connecting pipeline of the third three-way valve and the third heat exchanger, one end of the tenth fluid channel is connected with a first opening of the fourth three-way valve, the other end of the tenth fluid channel is connected with the mixed water tank, and a second opening of the fourth three-way valve is connected with a connecting pipeline between the mixed water tank and the first three-way valve through a pipeline.
Furthermore, a first opening of the first three-way valve is connected with the mixed water tank, a second opening of the first three-way valve is connected with a water inlet of the culture pond, and a third opening of the first three-way valve is simultaneously and respectively connected with one end of the first fluid channel and a water outlet of the culture pond.
Furthermore, the water outlet of the culture pond is also provided with a water treatment device, the water treatment device comprises a raw water inlet, a waste water outlet and a purified water outlet, the raw water inlet is connected with the water outlet of the culture pond, and the purified water outlet is simultaneously and respectively connected with one end of the first fluid channel and the third opening of the first three-way valve.
Furthermore, a second water temperature sensor is arranged on a connecting pipeline between the mixing water tank and the first three-way valve.
Further, the control valve is a proportional valve.
Compared with the prior art, the beneficial effects are:
1. in the utility model, the energy storage system flexibly uses valley electricity to store and discharge energy, and can heat up in winter and cool down in summer by matching with the structural particularity of the heat pump heating system; the heat collection system reasonably utilizes renewable energy sources such as solar energy to carry out heat compensation on the culture pond in winter, the utilization rate of the energy is improved, and the operation cost of the culture pond is reduced to a great extent.
2. In the utility model, the energy storage system is connected with the fresh water supply system and the circulating water system of the culture pond simultaneously, so that unified temperature adjustment can be realized, the separate preparation of a temperature adjustment system for fresh water is avoided, the temperature of the fresh water is close to the temperature of the circulating water, and the accuracy of the temperature control of the whole system is improved; the reasonable application of the temperature sensor and the three-way regulating valve regulates the heat exchange quantity of the heat storage system, ensures the total quantity of flowing media of the energy storage system and the circulating water system to be constant, and improves the operation efficiency and the economical efficiency of the whole system; the system is suitable for continuous water replenishing and indirect water replenishing, and has strong adaptability and high flexibility; each system is independent, the flowing media are not mutually fused, the maintenance is convenient, the structure is compact, the operation is convenient, and the economy is high.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the circulating water flow structure under the working condition in winter of the present invention.
Fig. 3 is a schematic diagram of the circulating water flow structure under the summer working condition.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
As shown in fig. 1, the system is a culture pond system with circulating water temperature regulation, and comprises a heat pump heat supply system, an energy storage system, a culture pond 1, a first heat exchanger 4, a second heat exchanger 5, a mixed water tank 19 and a first three-way valve 21 which are connected in sequence and form water circulation; the first heat exchanger 4 comprises a first fluid channel and a second fluid channel which can perform heat exchange, the second heat exchanger 5 comprises a third fluid channel and a fourth fluid channel which can perform heat exchange, one end of the first fluid channel is connected with the culture pond 1, one end of the third fluid channel is connected with the other end of the first fluid channel, the other end of the third fluid channel is connected with the mixed water tank 19, and two ends of the second fluid channel are also connected with a heat collection system; the energy storage system is connected to two ends of the fourth fluid channel; the heat pump heating system is in heat exchange connection with the energy storage system through a third heat exchanger 11, and the mixed water tank 19 is also connected with the energy storage system through a fresh water supply system; the heat collecting system is a solar heat collecting device 3, the solar heat collecting device 3 is connected to two ends of the second fluid channel through a heat collecting pipeline, and a control valve 22 is arranged on the heat collecting pipeline; the control valve 22 is a proportional valve.
Wherein the energy storage system comprises an energy storage box 8, a first regulating valve 9, a second regulating valve 10 and an energy storage working medium pump 7, a second three-way valve 6 and a third three-way valve 18, wherein a first opening of the second three-way valve 6 is connected with one end of a fourth fluid channel, a second opening is simultaneously and respectively connected with the other end of the fourth fluid channel and a first opening of the third three-way valve 18, a third opening is connected with one end of an energy storage working medium pump 7, a second opening of the third three-way valve 18 is connected with a third heat exchanger 11, a third opening is connected with a fresh water supply system, one end of an energy storage box 8 is connected with one end of a first regulating valve 9, the other end of the first regulating valve 9 is simultaneously and respectively connected with one end of the third heat exchanger 11 and one end of a second regulating valve 10, the other end of the second regulating valve 10 is simultaneously and respectively connected with the other end of the energy storage box 8 and the other end of the energy storage working medium pump 7, and a first water temperature sensor 23 is further arranged on a connecting pipe between the energy storage box 8 and the energy storage working medium pump 7; the third heat exchanger 11 comprises a fifth fluid channel and a sixth fluid channel which can exchange heat with each other, one end of the fifth fluid channel is connected with the other end of the first regulating valve 9, the other end of the fifth fluid channel is connected with a second opening of the third three-way valve 18, and the heat pump heating system is connected with two ends of the sixth fluid channel;
in this embodiment, the heat pump heating system includes a compressor 13, a four-way valve 12, a fourth heat exchanger 14 and a throttling device 15, the fourth heat exchanger 14 includes a seventh fluid channel and an eighth fluid channel for transporting external seawater, one end of the compressor 13 is connected to a first opening of the four-way valve 12, and the other end is connected to a second opening of the four-way valve 12, a third opening of the four-way valve 12 is connected to one end of the sixth fluid channel, a fourth opening is connected to one end of the seventh fluid channel, and two ends of the throttling device 15 are respectively connected to the other end of the sixth fluid channel and the other end of the seventh fluid channel;
in this embodiment, the fresh water replenishing system includes a fifth heat exchanger 17 and a fourth three-way valve 16 for connecting to an external water supply device, the fifth heat exchanger 17 includes a ninth fluid channel and a tenth fluid channel capable of performing heat exchange, one end of the ninth fluid channel is connected to the third opening of the third three-way valve 18, the other end of the ninth fluid channel is connected to a connection pipe between the third three-way valve 18 and the third heat exchanger 11, one end of the tenth fluid channel is connected to the first opening of the fourth three-way valve 16, the other end of the tenth fluid channel is connected to the mixed water tank 19, and the second opening of the fourth three-way valve 16 is connected to a connection pipe between the mixed water tank 19 and the first three-way valve 21 through a pipe; a first opening of the first three-way valve 21 is connected with the mixed water tank 19, a second opening is connected with a water inlet of the culture pond 1, and a third opening is simultaneously and respectively connected with one end of the first fluid channel and a water outlet of the culture pond 1; the water outlet of the culture pond 1 is also provided with a water treatment device 2, the water treatment device 2 comprises a raw water inlet, a waste water outlet and a purified water outlet, the raw water inlet is connected with the water outlet of the culture pond 1, and the purified water outlet is simultaneously and respectively connected with one end of the first fluid channel and a third opening of the first three-way valve 21; a second water temperature sensor 20 is also arranged on a connecting pipeline between the mixed water tank 19 and the first three-way valve 21.
Because the environmental temperatures in four seasons of the year are inconsistent, the water body temperature regulation and control modes in the embodiment in four seasons of the year are inconsistent; taking working conditions in winter and summer as examples:
(1) under winter conditions, as shown in fig. 2, the conditions of 4 systems are:
the heat pump heating system: the compressor 13, the four-way valve 12, the sixth fluid channel of the third heat exchanger 11, the throttling device 15 and the seventh fluid channel of the fourth heat exchanger 14 sequentially form a loop, and the working medium of the heat pump flows in the direction of an arrow in fig. 2. The heat pump working medium absorbs heat in the fourth heat exchanger 14, and supplies heat to the energy storage system through the compressor 13 and the four-way valve 12 in the third heat exchanger 11;
an energy storage system: the energy storage working medium is heated in the third heat exchanger 11; the working condition of energy storage at night is as follows: the first regulating valve 9 and the second regulating valve 10 are opened, the second three-way valve 6 determines the opening degree according to the circulating water temperature sensor, and the flow of the working medium entering the second heat exchanger 5 is regulated; the heat supply working condition of the daytime energy storage box 8 is as follows: the first regulating valve 9 is opened, the second regulating valve 10 is closed, and the second three-way valve 6 is used for regulating and supplying heat to the circulating water system. And finally, the second regulating valve 10 can regulate the flow of the energy storage working medium entering the fifth heat exchanger 17 to supply heat to the fresh water supply system according to the temperature and the flow control opening degree of the fresh water.
Fresh water supply system: the fourth three-way valve 16 adjusts the opening degree according to the temperature of the fresh water, and determines that the fresh water directly enters the circulating water system or is heated by the energy storage system and then is sent into the mixed water tank 19 to enter the circulating water system.
A heat collection system: the solar heat collection device 3 collects solar heat and generates heat in the first heat exchanger 4 to supply heat to circulating water; the control valve 22 is a proportional control valve 22 that controls the proportion of the heat exchange fluid.
Wherein the circulating water in the culture pond 1 flows out of the culture pond 1 and is treated in a water treatment system, part of the circulating water flows into a first heat exchanger 4 for heating, then is reheated in a second heat exchanger 5, enters a mixed water tank 19 to be mixed with new water, and finally is sent into the culture pond 1. Wherein the first three-way valve 21 can adjust the flow of the circulating water entering the culture pond 1.
(2) In summer, as shown in fig. 3, the working conditions of the 4 systems are respectively:
the heat pump heating system: the working medium of the heat pump flows in the direction of the arrow in fig. 3, wherein the working condition of the heat pump passes through the compressor 13 and the four-way valve 12 and then releases heat in the fourth heat exchanger 14, and the heat is cooled in the third heat exchanger 11 to the energy storage system through the throttling device 15.
An energy storage system: wherein the energy storage working medium is cooled in the third heat exchanger 11; the working condition of energy storage at night is as follows: the first regulating valve 9 and the second regulating valve 10 are opened, the second three-way valve 6 determines the opening degree according to the circulating water temperature sensor, and the flow of the heat pump working medium entering the second heat exchanger 5 is regulated; the day energy storage box 8 is in a refrigeration working condition: the first regulating valve 9 is opened, the second regulating valve 10 is closed, and the second three-way valve 6 regulates refrigeration to the circulating water system. And finally, the third three-way valve 18 can regulate the flow of the energy storage working medium entering the fifth heat exchanger 17 to refrigerate the fresh water supply system according to the temperature and the flow control opening degree of the fresh water.
Fresh water supply system: the fourth three-way valve 16 adjusts the opening degree according to the temperature of the fresh water, determines that the fresh water directly enters the circulating water system or the energy storage system for refrigeration, and then sends the fresh water into the mixed water tank 19 to enter the circulating water system.
A heat collection system: both control valves 22 are closed.
Similarly, the circulating water in the culture pond 1 flows out of the culture pond 1 and is subjected to water quality treatment in a water treatment system, part of the wastewater is discharged out of the system, most of the circulating water flows into the first heat exchanger 4 to be heated, then the circulating water is reheated in the second heat exchanger 5, enters the mixed water tank 19 to be mixed with fresh water, and finally is sent into the culture pond 1. Wherein the first three-way valve 21 can adjust the flow of the circulating water entering the culture pond 1.
The heat collection system of the embodiment reasonably utilizes renewable energy such as solar energy to carry out thermal compensation on the culture pond 1 in winter, the energy storage system flexibly utilizes valley electricity to carry out energy storage and energy release, and the heat collection system can be used for heating in winter and cooling in summer by matching with the structural specificity of the heat pump heating system; the utilization rate of energy is improved, and the operation cost of the culture pond 1 is greatly reduced; in addition, the energy storage system is simultaneously connected with the fresh water supply system and the circulating water system of the culture pond 1, so that unified temperature regulation can be realized, a temperature regulation system is prevented from being independently allocated for fresh water, the temperature of the fresh water can be close to the temperature of circulating water, and the temperature control accuracy of the whole system is improved; the reasonable application of the temperature sensor and the three-way regulating valve regulates the heat exchange quantity of the heat storage system, ensures the total quantity of flowing media of the energy storage system and the circulating water system to be constant, and improves the operation efficiency and the economical efficiency of the whole system; the system is suitable for continuous water replenishing and indirect water replenishing, and has strong adaptability and high flexibility; each system is independent, the flowing media are not mutually fused, the maintenance is convenient, the structure is compact, the operation is convenient, and the economy is high.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A culture pond system with circulating water temperature regulation is characterized by comprising a heat pump heat supply system, an energy storage system, a culture pond (1), a first heat exchanger (4), a second heat exchanger (5), a mixed water tank (19) and a first three-way valve (21), wherein the culture pond, the first heat exchanger, the second heat exchanger, the mixed water tank and the first three-way valve are sequentially connected and form water circulation; the first heat exchanger (4) comprises a first fluid channel and a second fluid channel which can perform heat exchange, the second heat exchanger (5) comprises a third fluid channel and a fourth fluid channel which can perform heat exchange, one end of the first fluid channel is connected with the culture pond (1), one end of the third fluid channel is connected with the other end of the first fluid channel, the other end of the third fluid channel is connected with the mixed water tank (19), and two ends of the second fluid channel are also connected with a heat collection system; the energy storage system is connected to two ends of the fourth fluid channel; the heat pump heat supply system is in heat exchange connection with the energy storage system through a third heat exchanger (11), and the mixing water tank (19) is connected with the energy storage system through a fresh water supply system.
2. A cultivation pond system with circulating water temperature regulation as claimed in claim 1, wherein the heat collecting system is a solar heat collecting device (3), the solar heat collecting device (3) is connected to two ends of the second fluid passage through heat collecting pipes, and the heat collecting pipes are provided with control valves (22).
3. The culture pond system with the circulating water temperature regulation function as claimed in claim 1, wherein the energy storage system comprises an energy storage tank (8), a first regulating valve (9), a second regulating valve (10), an energy storage working medium pump (7), a second three-way valve (6) and a third three-way valve (18), a first opening of the second three-way valve (6) is connected with one end of the fourth fluid channel, a second opening of the second three-way valve is simultaneously connected with the other end of the fourth fluid channel and a first opening of the third three-way valve (18), a third opening of the second three-way valve (18) is connected with one end of the energy storage working medium pump (7), a second opening of the third three-way valve (18) is connected with the third heat exchanger (11) and a third opening of the new water supply system, one end of the energy storage tank (8) is connected with one end of the first regulating valve (9), and the other end of the first regulating valve (9) is simultaneously connected with the third heat exchanger (11) and the second heat exchanger (9) respectively One end of the regulating valve (10) is connected with the other end of the second regulating valve (10) and the other end of the energy storage box (8) and the other end of the energy storage working medium pump (7) are connected with each other, and a first water temperature sensor (23) is further arranged on a connecting pipe between the energy storage box (8) and the energy storage working medium pump (7).
4. A cultivation pond system with circulating water temperature regulation according to claim 3, characterized in that the third heat exchanger (11) comprises a fifth fluid channel and a sixth fluid channel capable of heat exchange with each other, one end of the fifth fluid channel is connected with the other end of the first regulating valve (9), the other end of the fifth fluid channel is connected with the second opening of the third three-way valve (18), and the heat pump heating system is connected with the two ends of the sixth fluid channel.
5. The cultivation pond system with the circulating water temperature regulation function as claimed in claim 4, wherein the heat pump heating system comprises a compressor (13), a four-way valve (12), a fourth heat exchanger (14) and a throttling device (15), the fourth heat exchanger (14) comprises a seventh fluid channel and an eighth fluid channel for conveying external seawater, one end of the compressor (13) is connected to a first opening of the four-way valve (12), the other end of the compressor is connected to a second opening of the four-way valve (12), a third opening of the four-way valve (12) is connected to one end of the sixth fluid channel, a fourth opening of the four-way valve is connected to one end of the seventh fluid channel, and two ends of the throttling device (15) are respectively connected to the other end of the sixth fluid channel and the other end of the seventh fluid channel.
6. A culture pond system with circulating water temperature regulation according to claim 5, the fresh water replenishing system comprises a fifth heat exchanger (17) and a fourth three-way valve (16) used for connecting an external water supply device, the fifth heat exchanger (17) comprises a ninth fluid channel and a tenth fluid channel which can carry out heat exchange, one end of the ninth fluid channel is connected with a third opening of the third three-way valve (18), the other end of the ninth fluid channel is connected with a connecting pipeline of the third three-way valve (18) and the third heat exchanger (11), one end of the tenth fluid passage is connected with the first opening of the fourth three-way valve (16), and the other end is connected with the mixed water tank (19), the second opening of the fourth three-way valve (16) is connected to a connection line between the mixing tank (19) and the first three-way valve (21) by a pipe.
7. A cultivation pond system with circulating water temperature regulation as claimed in claim 6, characterized in that the first opening of the first three-way valve (21) is connected with the mixing water tank (19), the second opening is connected with the water inlet of the cultivation pond (1), and the third opening is simultaneously connected with one end of the first fluid channel and the water outlet of the cultivation pond (1), respectively.
8. A cultivation pond system with circulating water temperature regulation as claimed in claim 7, characterized in that the water outlet of the cultivation pond (1) is further provided with a water treatment device (2), the water treatment device (2) comprises a raw water inlet, a waste water outlet and a purified water outlet, the raw water inlet is connected with the water outlet of the cultivation pond (1), and the purified water outlet is simultaneously connected with one end of the first fluid channel and the third opening of the first three-way valve (21), respectively.
9. A culture pond system with circulating water temperature regulation according to claim 7, characterized in that a second water temperature sensor (20) is further arranged on a connecting pipeline between the mixed water tank (19) and the first three-way valve (21).
10. A cultivation pond system with regulation of the temperature of the circulating water as claimed in claim 2, characterized in that the control valve (22) is a proportional valve.
CN202022754082.2U 2020-11-24 2020-11-24 Culture pond system with circulating water temperature is adjusted Active CN213784894U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112385597A (en) * 2020-11-24 2021-02-23 广东海洋大学 Culture pond system with circulation water temperature is adjusted

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112385597A (en) * 2020-11-24 2021-02-23 广东海洋大学 Culture pond system with circulation water temperature is adjusted
CN112385597B (en) * 2020-11-24 2023-08-04 广东海洋大学 Culture pond system with circulation water temperature adjusting function

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