CN216314912U - Industrial aquaculture variable working condition heat pump heating system - Google Patents
Industrial aquaculture variable working condition heat pump heating system Download PDFInfo
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- CN216314912U CN216314912U CN202122141441.1U CN202122141441U CN216314912U CN 216314912 U CN216314912 U CN 216314912U CN 202122141441 U CN202122141441 U CN 202122141441U CN 216314912 U CN216314912 U CN 216314912U
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Abstract
The utility model provides a variable working condition heat pump heating system for industrial aquaculture, which comprises a ground source heat pump unit and a heat supplementing unit, wherein the ground source heat pump unit comprises a ground source heat pump and a secondary heat exchanger, the secondary heat exchanger is provided with a first passage and a second passage which can exchange heat with each other, the second passage is used for exchanging heat with the ground source heat pump, a water inlet of the first passage is used for being communicated with a new water pipe, and a water outlet of the first passage is communicated with a water inlet of a culture pond; the heat supplementing unit comprises a heat supplementing pipeline arranged in the culture pond and a heat exchange pipeline used for exchanging heat with the second passage of the secondary heat exchanger, and the heat exchange pipeline and the heat supplementing pipeline are connected into a circulation loop. The ground source heat pump realizes the heating of water changing and the constant temperature heat supplement of the culture water body by taking underground water as a heat source, the requirement of the culture water body on the temperature is met, the variable working condition requirements of the water changing heating and the constant temperature heat supplement can be met by using one set of system according to the actual culture requirement, and the consideration of economic cost and operation regulation and control is realized.
Description
Technical Field
The utility model relates to the technical field of industrial aquaculture, in particular to a variable working condition heat pump heating system for industrial aquaculture.
Background
Since the beginning of the 21 st century, with the support of national policy conditions, the improvement of fishery technology level and the change of consumption modes, industrial aquaculture has become an industrial form for the vigorous development of the whole country, particularly coastal areas, and great power is added for the development of local economy. But industrial aquaculture also faces the development bottleneck, on one hand, the energy consumption is huge, and on the other hand, the production technology is lagged behind, thereby preventing the continuous trend to scale and modernization.
In aquaculture in coastal areas in the north, the temperature of aquaculture water needs to be maintained at 26-30 ℃ in autumn and winter as long as 6 months, so as to meet the growth requirements of seafood such as penaeus vannamei and the like with higher temperature and quality requirements. However, due to the wide aquaculture water body, the large water exchange amount, the low outdoor temperature and other reasons, the heat supply amount and the energy consumption amount of the aquaculture water cannot be ignored. Most breeding manufacturers adopt geothermal exploitation, coal-fired gas-fired boilers and even electric heating modes to supply heat to water bodies, but the modes can cause the problems of resource waste and environmental damage, have high operation cost and do not meet the requirements of national carbon reduction and carbon reduction policies; and some offshore factories lack large-scale coal, gas and electric power supply, and if a coal or gas boiler or an electric heating mode is adopted, related equipment needs to be built, so that the investment cost is high.
Importantly, most of the existing aquaculture heat supply modes have the problems of redundant equipment model selection design, high investment cost, difficulty in meeting the requirement of variable working condition adjustment in the aquaculture process and the like, and particularly in some aquaculture with high environmental requirements, two sets of systems are usually adopted for aquaculture water change heating and culture water constant temperature heat supplement maintenance, so that the problems of frequent start and stop of part of units, unstable temperature adjustment, poor working condition adaptability and the like are caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a variable working condition heat pump heating system for industrial aquaculture, which is used for solving the defects, realizes water change heating and maintenance of constant temperature heat supplement of aquaculture water by using underground water as a heat source through a ground source heat pump, meets the requirement of the aquaculture water on temperature, can simultaneously meet the variable working condition requirements of water change heating and constant temperature heat supplement by using a set of system according to the actual aquaculture requirement, and realizes both economic cost and operation regulation. The heating system replaces the existing scheme of heating the water body, not only can save energy and reduce operating cost, but also can reduce the pollution to the environment, has obvious economic benefit and accords with the national strategic requirements on carbon neutralization.
The utility model provides a factory aquaculture variable working condition heat pump heating system, which comprises:
the system comprises a ground source heat pump unit, a water pump unit and a water pump unit, wherein the ground source heat pump unit comprises a ground source heat pump and a secondary heat exchanger, the secondary heat exchanger is provided with a first passage and a second passage which can exchange heat with each other, the second passage is used for exchanging heat with the ground source heat pump, a water inlet of the first passage is used for being communicated with a new water pipe, and a water outlet of the first passage is communicated with a water inlet of a culture pond;
the heat supplementing unit comprises a heat supplementing pipeline arranged in the culture pond and a heat exchange pipeline used for exchanging heat with the second passage of the secondary heat exchanger, and the heat exchange pipeline is connected with the heat supplementing pipeline to form a circulation loop.
The utility model provides an industrial aquaculture variable working condition heat pump heating system, which further comprises a fresh water preheating heat exchanger for exchanging heat between fresh water and tail water, wherein the fresh water preheating heat exchanger is provided with a first heat exchange passage and a second heat exchange passage, a water inlet of the first heat exchange passage is communicated with a water outlet of a culture pond, a water inlet of the second heat exchange passage is communicated with a fresh water pipe, and a water outlet of the second heat exchange passage is communicated with a water inlet of the first passage.
According to the variable working condition heat pump heating system for industrial aquaculture provided by the utility model, the heat exchange pipeline is the first passage, a first valve is arranged between the water outlet of the first passage and the water inlet of the culture pond, a second valve is arranged between the water outlet of the first passage and the water inlet of the heat supplementing pipeline, a third valve is arranged between the water inlet of the first passage and the new water pipe, a fourth valve is arranged between the water inlet of the first passage and the water outlet of the heat supplementing pipeline, and the first valve, the second valve, the third valve and the fourth valve can be switched in a closed state or an open state respectively.
According to the variable working condition heat pump heating system for industrial aquaculture provided by the utility model, the second path of the secondary heat exchanger is communicated with the condenser of the ground source heat pump to form a loop.
According to the variable working condition heat pump heating system for industrial aquaculture provided by the utility model, the evaporator of the ground source heat pump is provided with a groundwater inlet for groundwater to enter and a groundwater outlet for groundwater to discharge, and the evaporator of the ground source heat pump can absorb the heat of the groundwater.
According to the variable working condition heat pump heating system for industrial aquaculture provided by the utility model, the heat supplementing unit further comprises a water supplementing device, and the water supplementing device comprises:
a water replenishing tank;
and the water inlet of the water supplementing constant-pressure pump is communicated with the water supplementing tank, and the water outlet of the water supplementing constant-pressure pump is communicated with the circulating loop.
According to the variable working condition heat pump heating system for industrial aquaculture, the ground source heat pump unit is provided with a first ground source heat pump unit and a second ground source heat pump unit.
According to the variable working condition heat pump heating system for industrial aquaculture provided by the utility model, the heat exchange pipeline is a first passage of a second secondary heat exchanger of the second ground source heat pump unit, the first valve is arranged between a water outlet of the first passage of the second secondary heat exchanger and a water inlet of the culture pond, the second valve is arranged between a water outlet of the first passage of the second secondary heat exchanger and a water inlet of the heat supplementing pipeline, the third valve is arranged between a water inlet of the first passage of the second secondary heat exchanger and the fresh water pipe, and the fourth valve is arranged between a water inlet of the first passage of the second secondary heat exchanger and a water outlet of the heat supplementing pipeline.
According to the variable working condition heat pump heating system for industrial aquaculture, the ground source heat pump unit further comprises a well water submersible pump for lifting underground water, the well water submersible pump is communicated with the underground water inlet, and a cyclone sand remover is arranged between the well water submersible pump and the underground water inlet.
The utility model provides an industrial aquaculture variable working condition heat pump heating system, which further comprises a tail water treatment unit, wherein the tail water treatment unit comprises:
the water inlet of the tail water sedimentation tank is communicated with the water outlet of the culture pond;
and the water inlet of the tail water filter is communicated with the water outlet of the tail water sedimentation tank, and the water outlet of the tail water filter is communicated with the water inlet of the first heat exchange passage.
The industrial aquaculture variable working condition heat pump heating system provided by the utility model realizes water changing heating and maintains constant temperature heat supplement of the aquaculture water body by using the ground source heat pump and using the underground water as a heat source, meets the requirement of the aquaculture water body on temperature, can simultaneously meet the variable working condition requirements of the water changing heating and the constant temperature heat supplement by using one set of system according to the actual aquaculture requirement, and realizes both economic cost and operation regulation. The heating system replaces the existing scheme of heating the water body, not only can save energy and reduce operating cost, but also can reduce the pollution to the environment, has obvious economic benefit and accords with the national strategic requirements on carbon neutralization.
Furthermore, the fresh water is preheated by the waste heat of the tail water recovered by the fresh water preheating heat exchanger, then enters the culture pond after being further heated by the ground source heat pump unit, and the waste heat of the tail water is recovered for preheating the fresh water, so that the model selection of the ground source heat pump unit is favorably reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a variable working condition heat pump heating system for industrial aquaculture provided by the utility model.
Reference numerals:
1: a culture pond; 2: a tail water sedimentation tank; 3: a tail water filter;
4: fresh water preheating heat exchanger; 5: a first ground source heat pump; 6: a second ground source heat pump;
7: a first secondary heat exchanger; 8: a second secondary heat exchanger; 9: a water replenishing tank;
10: a heat-supplementing pipeline; 21: a tail water pump; 22: a fresh water pump;
23: a first well water submersible pump; 24: a second well water submersible pump; 25: a heat-supplementing circulating pump;
26: a first circulation pump; 27: a second circulation pump; 28: a water replenishing constant pressure pump;
31: a first valve; 32: a second valve; 33: a third valve;
34: a fourth valve; 35: a water replenishing pump valve; 101: a first conduit;
102: a second conduit; 103: a third pipeline; 104: a fourth conduit;
105: a fifth pipeline; 106: a sixth pipeline; 107: a seventh pipe;
108: an eighth conduit; 109: a ninth conduit; 110: a tenth conduit;
111: an eleventh pipe; 112: a twelfth duct; 113: a thirteenth pipe;
114: a fourteenth pipe; 115: a fifteenth conduit; 116: a new water pipe;
117: a tail water discharge pipeline; 118: and a water replenishing pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The industrial aquaculture variable working condition heat pump heating system of the utility model is described below with reference to fig. 1, and comprises a ground source heat pump unit and a heat supplementing unit.
The ground source heat pump unit comprises a ground source heat pump and a secondary heat exchanger, the secondary heat exchanger is provided with a first passage and a second passage which can exchange heat with each other, and the second passage is used for exchanging heat with the ground source heat pump, so that the heating of new water can be realized through the ground source heat pump. Specifically, the water inlet of the first passage is used for being communicated with a new water pipe, and the water outlet of the first passage is communicated with the water inlet of the culture pond 1, so that new water can flow into the culture pond 1 after being heated by the ground source heat pump unit, and water changing and heating can be realized.
The heat supplementing unit comprises a heat supplementing pipeline 10 and a heat exchange pipeline, wherein the heat supplementing pipeline 10 is arranged in the culture pond 1 so as to heat the water body in the culture pond 1; specifically, the concurrent heating pipeline 10 may be an aluminum alloy pipe laid at the bottom of the culture pond 1. The heat exchange pipeline is used for exchanging heat with the second passage of the secondary heat exchanger, and the heat exchange pipeline is connected with the heat supplementing pipeline 10 through a circulating pipeline to form a circulating loop, so that the medium in the heat supplementing pipeline 10 can be recycled, the water in the culture pond 1 can be continuously heated, and constant-temperature heat supplementing is realized. So, the medium in the circulation circuit is heated through secondary heat exchanger's second route, can be heated to about 35 ℃, then releases the heat to breeding pond 1 in through concurrent heating pipeline 10, realizes breeding the water in the pond 1 and heaies up concurrent heating and maintain suitable water temperature, through ground source heat pump set's secondary heat exchanger heating medium, can the energy saving, reduce the working costs.
So set up, this heating system uses groundwater to realize changing the water heating and maintaining aquaculture water constant temperature concurrent heating as the heat source through the ground source heat pump, has reached aquaculture water to the requirement of temperature to, can be according to actual aquaculture demand, use one set of system to satisfy simultaneously and change the operating mode requirement of water heating and constant temperature concurrent heating, realize economic cost and operation regulation and control's compromise. The heating system replaces the existing scheme of heating the water body, not only can save energy and reduce operating cost, but also can reduce the pollution to the environment, has obvious economic benefit and accords with the national strategic requirements on carbon neutralization.
In an optional embodiment of the utility model, the heat supply system further comprises a fresh water preheating heat exchanger 4, and the fresh water is preheated by the waste heat of the tail water recovered by the fresh water preheating heat exchanger 4 and then enters the culture pond 1 after being further heated by the ground source heat pump unit. Therefore, the tail water waste heat is recovered to preheat the fresh water, and the model selection of the ground source heat pump unit is favorably reduced. The fresh water preheating heat exchanger 4 is provided with a first heat exchange path and a second heat exchange path, a water inlet of the first heat exchange path is communicated with a water outlet of the culture pond 1, and a water inlet of the second heat exchange path is communicated with the fresh water pipe 116, so that the fresh water and the tail water can exchange heat in the fresh water preheating heat exchanger 4, and the fresh water is preheated by using the waste heat of the tail water. In addition, a fresh water pump 22 is installed on the fresh water pipe 116 so as to introduce fresh water into the second heat exchange path; the water outlet of the first heat exchange passage is provided with a tail water discharge pipe 117 so as to discharge tail water. Specifically, the water outlet of the second heat exchange passage is communicated with the water inlet of the first passage of the secondary heat exchanger, so that new water can enter the secondary heat exchanger for heat exchange. The fresh aquaculture water is preheated to about 13 ℃ through the fresh water preheating heat exchanger 4, then enters the secondary heat exchanger to be heated to about 30 ℃ again, and then is sent into the aquaculture pond 1.
In an alternative embodiment, the second path of the secondary heat exchanger is communicated with the condenser of the ground source heat pump to form a loop, so that the medium in the loop can absorb heat on the side of the condenser, and the second path of the secondary heat exchanger releases heat, so that the fresh water in the first path is heated.
In addition, the evaporator of the ground source heat pump is provided with a ground water inlet for ground water to enter and a ground water outlet for ground water to discharge, the evaporator of the ground source heat pump can absorb the heat of the ground water so as to evaporate the refrigerant in the evaporator, and thus, the ground water is used as a heat source for the evaporation and heat absorption of the refrigerant in the evaporator.
In an alternative embodiment, the heat exchange pipeline may be a first path, so that the medium in the heat-supplementing pipeline 10 is heated by the secondary heat exchanger of the ground source heat pump unit, thereby raising the temperature of the water body in the culture pond 1 and maintaining a proper water body temperature.
A first valve 31 is arranged between the water outlet of the first passage and the water inlet of the culture pond 1, a second valve 32 is arranged between the water outlet of the first passage and the water inlet of the heat supplementing pipeline 10, a third valve 33 is arranged between the water inlet of the first passage and the new water pipe (namely the water outlet of the second heat exchange passage), a fourth valve 34 is arranged between the water inlet of the first passage and the water outlet of the heat supplementing pipeline 10, and the first valve 31, the second valve 32, the third valve 33 and the fourth valve 34 can be switched in a closed state or an open state respectively, so that the new water can pass through the first passage or a medium in the heat supplementing pipeline 10 passes through the first passage, and therefore the heat supply system can operate a water changing heating working condition or a constant temperature heat supplementing working condition, and can operate under a variable working condition, and therefore the requirements of different culture stages are met.
When the first valve 31 and the third valve 33 are in a closed state and the second valve 32 and the fourth valve 34 are in an open state, the medium in the heat compensation pipeline 10 can flow into the secondary heat exchanger, and the second path of the secondary heat exchanger heats the medium, so that the heating system operates in a constant-temperature heat compensation working condition.
When the first valve 31 and the third valve 33 are in an open state and the second valve 32 and the fourth valve 34 are in a closed state, new water can flow into the first passage, and the second passage of the secondary heat exchanger heats the new water in the first passage, so that the heating system operates in a water changing and heating working condition.
Here, the first valve 31, the second valve 32, the third valve 33, and the fourth valve 34 may be gate valves.
In an optional embodiment, the heat supplementing unit further includes a water supplementing device, the water supplementing device includes a water supplementing tank 9 and a water supplementing constant pressure pump 28, the water supplementing tank 9 contains a medium (the medium may be water), a water inlet of the water supplementing constant pressure pump 28 is communicated with the water supplementing tank 9, and a water outlet of the water supplementing constant pressure pump 28 is communicated with the circulation loop to supplement the medium to the heat supplementing pipeline 10; the water replenishing tank 9 is communicated with the water replenishing constant pressure pump 28 through a water replenishing pipe 118, and water replenishing pump valves 35 are arranged between a water inlet of the water replenishing constant pressure pump 28 and the water replenishing tank 9, and between a water outlet of the water replenishing constant pressure pump 28 and the circulation circuit, so that the water replenishing tank 9 and the water replenishing constant pressure pump 28 can replenish water to the circulation circuit according to the set water replenishing amount.
In addition, two ground source heat pump units can be provided, namely a first ground source heat pump unit and a second ground source heat pump unit, wherein the first ground source heat pump unit comprises a first secondary heat exchanger 7 and a first ground source heat pump 5, and the second ground source heat pump unit comprises a second secondary heat exchanger 8 and a second ground source heat pump 6. The first valve 31 is arranged between the water outlet of the first passage of the second secondary heat exchanger 8 and the water inlet of the culture pond 1, the second valve 32 is arranged between the water outlet of the first passage of the second secondary heat exchanger 8 and the water inlet of the heat supplementing pipeline 10, the third valve 33 is arranged between the water inlet of the first passage of the second secondary heat exchanger 8 and the second heat exchanging passage, and the fourth valve 34 is arranged between the water inlet of the first passage of the second secondary heat exchanger 8 and the water outlet of the heat supplementing pipeline 10, so that when the heat supply system operates under the constant-temperature heat supplementing working condition, the medium in the heat supplementing pipeline 10 can be heated only through the second ground source heat pump unit.
The water outlet of the second heat exchange passage of the fresh water preheating heat exchanger 4 is communicated with the water inlets of the first channels of the first secondary heat exchanger 7 and the second secondary heat exchanger 8 through a fourth pipeline 104, the water outlets of the first channels of the first secondary heat exchanger 7 and the second secondary heat exchanger 8 are communicated with the water inlet of the culture pond 1 through a fifth pipeline 105, and specifically, the water outlets of the first channels of the first secondary heat exchanger 7 and the second secondary heat exchanger 8 are communicated with the water inlet of the fifth pipeline 105 through a connecting pipeline. And the water outlet of the first channel of the second secondary heat exchanger 8 is communicated with the water inlet of the heat supplementing pipeline 10 through a sixth pipeline 106, and the water inlet of the first channel of the second secondary heat exchanger 8 is communicated with the water outlet of the heat supplementing pipeline 10 through a seventh pipeline 107.
In addition, a first valve 31 is arranged on a connecting pipeline between the second secondary heat exchanger 8 and the fifth pipeline 105, and is used for adjusting the on-off of the connecting pipeline, so that the communication state of the first passage and the fifth passage of the second secondary heat exchanger 8 is adjusted; a second valve 32 is provided on the sixth pipe 106 for adjusting the on-off of the sixth pipe 106; the third valve 33 is arranged on the fourth pipeline 104, and the third valve 33 is arranged between the water inlets of the first passages of the first secondary heat exchanger 7 and the second secondary heat exchanger 8, so that when the third valve 33 is closed, new water cannot flow into the second secondary heat exchanger 8; the fourth valve 34 is arranged on the seventh pipeline 107 and is used for adjusting the on-off state of the seventh pipeline 107, so that the communication state of the first passage of the second secondary heat exchanger 8 and the heat supplementing pipeline 10 is adjusted.
In addition, a heat supplementing circulating pump 25 is installed on the seventh pipeline 107, when the constant-temperature heat supplementing working condition is operated, the first ground source heat pump 5 is closed, the second ground source heat pump 6 is opened, the first valve 31 and the third valve 33 are closed, the second valve 32 and the fourth valve 34 are opened, the heat supplementing circulating pump 25 is opened, the heat supplementing pipeline 10 and a first passage of the second secondary heat exchanger 8 form a circulating loop through the sixth pipeline 106 and the seventh pipeline 107, a medium in the circulating loop is heated through the second secondary heat exchanger 8, and then heat is released into the culture pond 1 through the heat supplementing pipeline 10, so that the water body is heated.
In an alternative embodiment, the condenser of the first ground source heat pump 5 and the second passage of the first secondary heat exchanger 7 are communicated with each other through a tenth pipeline 110 and an eleventh pipeline 111 to form a loop, and the eleventh pipeline 111 is provided with a first circulating pump 26 so as to realize circulation of the loop; the condenser of the second ground source heat pump 6 and the second passage of the second secondary heat exchanger 8 form a circuit by an eighth pipe 108 and a ninth pipe 109, and a second circulation pump 27 is installed on the ninth pipe 109 so as to circulate the circuit. Thus, when the first ground source heat pump 5 and the second ground source heat pump 6 are started, the two loops realize circulating heat exchange, the medium in the loops absorbs heat at the condenser sides of the first ground source heat pump 5 and the second ground source heat pump 6, and releases heat at the second path of the first secondary heat exchanger 7 and the second secondary heat exchanger 8.
In a further embodiment, the ground source heat pump unit further comprises a well water submersible pump for lifting the underground water, the well water submersible pump is communicated with an underground water inlet of an evaporator of the ground source heat pump, and a rotational flow desander is arranged between the well water submersible pump and the underground water inlet of the evaporator so as to prevent sediment in the underground water from entering the evaporator of the ground source heat pump. Specifically, the first ground source heat pump unit further comprises a first well water submersible pump 23, the first well water submersible pump 23 is communicated with an evaporator underground water inlet of the first ground source heat pump 5 through a fourteenth pipeline 114, and a fifteenth pipeline 115 communicated with a recharging well is further arranged at an evaporator underground water outlet of the first ground source heat pump 5 so that underground water can be conveniently discharged from the evaporator; the second ground source heat pump unit further comprises a second well water submersible pump 24, the second well water submersible pump 24 is communicated with a ground water inlet of the second ground source heat pump 6 through a twelfth pipeline 112, and a thirteenth pipeline 113 communicated with a recharging well is further arranged at a ground water outlet of the second ground source heat pump 6 so that ground water can be conveniently discharged from the evaporator. When the first ground source heat pump 5 and the second ground source heat pump 6 are started, the underground water is lifted to the ground by the first well water submersible pump 23 and the second well water submersible pump 24, enters the evaporators of the first ground source heat pump 5 and the second ground source heat pump 6, provides a heat source for heat absorption of the evaporators of the first ground source heat pump 5 and the second ground source heat pump 6, and then is discharged into the recharge well from the fifteenth pipeline 115 and the thirteenth pipeline 113.
In an optional embodiment of the present invention, the heating system further comprises a tail water treatment unit to prevent silt and the like in the tail water from blocking the first heat exchange path of the new water preheating heat exchanger 4. The tail water treatment unit comprises a tail water sedimentation tank 2 and a tail water filter 3, a water inlet of the tail water sedimentation tank 2 is communicated with a water outlet of the culture tank 1, a water inlet of the tail water filter 3 is communicated with a water outlet of the tail water sedimentation tank 2, and a water outlet of the tail water filter 3 is communicated with a water inlet of the first heat exchange passage, so that tail water flows into the new water preheating heat exchanger 4 after being filtered.
Specifically, the water outlet of the culture pond 1 is communicated with the water inlet of the tail water sedimentation pond 2 through a first pipeline 101, the water outlet of the tail water sedimentation pond 2 is communicated with the water inlet of the tail water filter 3 through a second pipeline 102, and the water outlet of the tail water filter 3 is communicated with the water inlet of the first heat exchange passage of the fresh water preheating heat exchanger 4 through a third pipeline 103. In order to facilitate the entry of the tail water into the tail water filter 3, a tail water pump 21 is provided between the tail water sedimentation tank 2 and the tail water filter 3. Like this, breed pond 1 exhaust tail water and carry out multistage sediment back through tail water sedimentation tank 2, enter into tail water filter 3 under the effect of tail water pump 21, tail water gets into in the first heat transfer route of fresh water preheat heat exchanger 4 after tail water filters 3 filtration, finally discharges from the delivery port of first heat transfer route.
In addition, in order to facilitate the recovery of the waste heat in the tail water, a heat insulation layer is arranged on the outer wall of the tail water sedimentation tank 2, so that the waste heat in the tail water is prevented from being released to the outside in the tail water treatment process and cannot be preheated for new water.
In an alternative embodiment, the first pipe 101, the second pipe 102, the third pipe 103, the fourth pipe 104, the fifth pipe 105, the eighth pipe 108, the ninth pipe 109, the tenth pipe 110, the eleventh pipe 111, the twelfth pipe 112, the thirteenth pipe 113, the fourteenth pipe 114, the fifteenth pipe 115, the fresh water pipe 116, and the tail water discharge pipe 117 may be PVC pipes; the sixth pipe 106 and the seventh pipe 107 may be aluminum alloy pipes; the water supply pipe 118 may be a galvanized steel pipe. In addition, in the heat supply system, except the heat supplementing circulating pump 25 and the water supplementing constant pressure pump 28, other water pumps are all subjected to fluorine lining treatment, so that the water pumps are not scaled and are not easy to grow microorganisms, and the purity of a conveying medium is ensured. In addition, both the fresh water preheating heat exchanger 4 and the secondary heat exchanger can be titanium plate heat exchangers.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a batch production aquaculture variable working condition heat pump heating system which characterized in that includes:
the system comprises a ground source heat pump unit, a water pump unit and a water pump unit, wherein the ground source heat pump unit comprises a ground source heat pump and a secondary heat exchanger, the secondary heat exchanger is provided with a first passage and a second passage which can exchange heat with each other, the second passage is used for exchanging heat with the ground source heat pump, a water inlet of the first passage is used for being communicated with a new water pipe, and a water outlet of the first passage is communicated with a water inlet of a culture pond;
the heat supplementing unit comprises a heat supplementing pipeline arranged in the culture pond and a heat exchange pipeline used for exchanging heat with the second passage of the secondary heat exchanger, and the heat exchange pipeline is connected with the heat supplementing pipeline to form a circulation loop.
2. The industrial aquaculture variable working condition heat pump heating system according to claim 1, further comprising a fresh water preheating heat exchanger for exchanging heat between fresh water and tail water, wherein the fresh water preheating heat exchanger is provided with a first heat exchange passage and a second heat exchange passage, a water inlet of the first heat exchange passage is communicated with a water outlet of the culture pond, a water inlet of the second heat exchange passage is communicated with the fresh water pipe, and a water outlet of the second heat exchange passage is communicated with a water inlet of the first passage.
3. The industrial aquaculture variable working condition heat pump heating system according to claim 1, wherein the heat exchange pipeline is the first passage, a first valve is arranged between a water outlet of the first passage and a water inlet of the culture pond, a second valve is arranged between the water outlet of the first passage and a water inlet of the heat supplementing pipeline, a third valve is arranged between the water inlet of the first passage and the fresh water pipe, a fourth valve is arranged between the water inlet of the first passage and the water outlet of the heat supplementing pipeline, and the first valve, the second valve, the third valve and the fourth valve can be switched between a closed state and an open state respectively.
4. The industrial aquaculture variable working condition heat pump heating system according to claim 1, wherein the second path of the secondary heat exchanger is communicated with the condenser of the ground source heat pump as a loop.
5. The industrial aquaculture variable working condition heat pump heating system according to claim 4, wherein the evaporator of the ground source heat pump is provided with a groundwater inlet for groundwater to enter and a groundwater outlet for groundwater to drain, and the evaporator of the ground source heat pump can absorb heat of the groundwater.
6. The industrial aquaculture variable working condition heat pump heating system according to claim 1, wherein the heat supplementing unit further comprises a water supplementing device, and the water supplementing device comprises:
a water replenishing tank;
and the water inlet of the water supplementing constant-pressure pump is communicated with the water supplementing tank, and the water outlet of the water supplementing constant-pressure pump is communicated with the circulating loop.
7. The industrial aquaculture variable working condition heat pump heating system according to claim 3, wherein the ground source heat pump unit is provided with two ground source heat pump units, namely a first ground source heat pump unit and a second ground source heat pump unit.
8. The industrial aquaculture variable-operating-condition heat pump heating system according to claim 7, wherein the heat exchange pipeline is a first passage of a second secondary heat exchanger of the second ground source heat pump unit, the first valve is arranged between a water outlet of the first passage of the second secondary heat exchanger and a water inlet of the culture pond, the second valve is arranged between a water outlet of the first passage of the second secondary heat exchanger and a water inlet of the heat supplementing pipeline, the third valve is arranged between a water inlet of the first passage of the second secondary heat exchanger and the fresh water pipe, and the fourth valve is arranged between a water inlet of the first passage of the second secondary heat exchanger and a water outlet of the heat supplementing pipeline.
9. The industrial aquaculture variable working condition heat pump heating system according to claim 5, wherein the ground source heat pump unit further comprises a well water submersible pump for lifting underground water, the well water submersible pump is communicated with the underground water inlet, and a cyclone sand remover is arranged between the well water submersible pump and the underground water inlet.
10. The industrial aquaculture variable working condition heat pump heating system according to claim 2, further comprising a tail water treatment unit, wherein the tail water treatment unit comprises:
the water inlet of the tail water sedimentation tank is communicated with the water outlet of the culture pond;
and the water inlet of the tail water filter is communicated with the water outlet of the tail water sedimentation tank, and the water outlet of the tail water filter is communicated with the water inlet of the first heat exchange passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122141441.1U CN216314912U (en) | 2021-09-06 | 2021-09-06 | Industrial aquaculture variable working condition heat pump heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122141441.1U CN216314912U (en) | 2021-09-06 | 2021-09-06 | Industrial aquaculture variable working condition heat pump heating system |
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| CN216314912U true CN216314912U (en) | 2022-04-19 |
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| CN202122141441.1U Active CN216314912U (en) | 2021-09-06 | 2021-09-06 | Industrial aquaculture variable working condition heat pump heating system |
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| CN (1) | CN216314912U (en) |
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2021
- 2021-09-06 CN CN202122141441.1U patent/CN216314912U/en active Active
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