CN110063291B - Wind-water double-heat-source heat pump type aquaculture soil pond temperature control system - Google Patents
Wind-water double-heat-source heat pump type aquaculture soil pond temperature control system Download PDFInfo
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- CN110063291B CN110063291B CN201910288816.1A CN201910288816A CN110063291B CN 110063291 B CN110063291 B CN 110063291B CN 201910288816 A CN201910288816 A CN 201910288816A CN 110063291 B CN110063291 B CN 110063291B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 630
- 239000002689 soil Substances 0.000 title claims abstract description 89
- 238000009360 aquaculture Methods 0.000 title claims abstract description 29
- 244000144974 aquaculture Species 0.000 title claims abstract description 29
- 239000003507 refrigerant Substances 0.000 claims abstract description 70
- 238000010438 heat treatment Methods 0.000 claims abstract description 49
- 238000001816 cooling Methods 0.000 claims description 14
- 244000025254 Cannabis sativa Species 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000003570 air Substances 0.000 description 75
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 17
- 229910052802 copper Inorganic materials 0.000 description 17
- 239000010949 copper Substances 0.000 description 17
- 239000012080 ambient air Substances 0.000 description 9
- 238000005057 refrigeration Methods 0.000 description 7
- 239000010902 straw Substances 0.000 description 5
- 239000002352 surface water Substances 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/06—Arrangements for heating or lighting in, or attached to, receptacles for live fish
- A01K63/065—Heating or cooling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention relates to an air-water double-heat-source heat pump type aquaculture soil pond temperature control system, which comprises: the refrigerant circulation assembly comprises a first electronic expansion valve, a second electronic expansion valve and a compressor, the air source module comprises an axial flow fan, an air source heat exchanger and a third electronic expansion valve, and the water source loop module comprises a water source first loop and a water source second loop. Compared with the prior art, the invention can realize a water source heating mode, an air source heating mode, a water source and air source simultaneous heating mode and a refrigerating mode, obviously improve the energy efficiency of the heat pump unit, realize heat extraction from pond water with the temperature higher than the environmental temperature by 10 ℃ in winter, and greatly improve the COP of the system; in addition, one heat taking soil pond can be used for simultaneously supplying heat or refrigerating for a plurality of cultivation soil ponds.
Description
Technical Field
The invention relates to a double-heat-source heat pump system, in particular to an air-water double-heat-source heat pump type aquaculture soil pond temperature control system.
Background
At present, an outdoor manually excavated soil pond is a main place for aquaculture, but the water temperature of the soil pond is greatly influenced by the outdoor environment, and particularly in cold winter, the water temperature needs to be kept through heat supply to maintain the yield of aquaculture. The traditional heat supply mode adopts a coal-fired boiler or a gas-fired boiler, the coal-fired boiler uses inferior coal with small heat productivity and large ash content, the incomplete combustion of the coal generates a large amount of smoke dust and sulfur dioxide, the atmospheric environment is polluted, and the coal-fired boiler is prohibited in all areas. The gas boiler has extremely high operation cost, and the profit margin of farmers is greatly reduced, so that a novel efficient heating mode is urgently needed to replace boiler heat supply.
In recent years, vapor compression type heat pump technology is proposed to be applied to aquaculture industry, the heat pump technology is efficient, stable and environment-friendly, and meanwhile, the soil pond can be refrigerated in summer. However, the heat pump in the present stage is still higher in initial investment compared with a boiler by utilizing an air source for heat extraction, and the energy efficiency of the heat pump needs to be further improved so as to be popularized in a large area.
CN201503094U discloses a supplementary surface water source heat pump device of solar energy, include by placing in the underwater coil pipe, outdoor water pump, water source heat pump set, indoor water pump and the surface water source heat pump return circuit that the indoor set is connected, the utility model discloses characterized in that still include with the solar collector of coil pipe parallel access surface water source heat pump return circuit under water, still concatenated the supplementary electric heater who inserts by valve group control on the heating branch that forms by this solar collector and main valve connection. The utility model discloses a solar energy assists earth's surface water source heat pump device makes full use of the heat of certain degree of depth water and the heat of solar energy when heating winter to the power consumption cost has been practiced thrift greatly. The technical scheme only discloses how to utilize a surface water source and realize indoor heating through a heat pump, but also provides a solution to the problem of low heat supply efficiency of a heat pump unit in winter in the aquaculture process.
CN1916532A discloses a high-efficiency refrigerating device, a matched energy-saving accessory used for the device and a using method, wherein a magnetizer or a vibrator is connected in series or in parallel in a pipeline of a common refrigerating device to reduce heat exchange resistance and working medium flow resistance and improve evaporation speed; the energy consumption of the pipeline is reduced by adopting the energy-consumption-free outer finned liquid pipe and the heat-insulation high-temperature low-temperature air pipe; the integral condenser and the evaporator with the fins combined with the black body film are adopted to improve the heat exchange efficiency and prolong the service life of equipment; the condensate water subcooler and the heat recovery system thereof are adopted to recover more than 80 percent of cold energy in the water, eliminate the harm and the like when the condensate water subcooler and the heat recovery system are directly discharged, and the energy storage tank, the freezing and refrigerating equipment, the air conditioning equipment and the absorption type compression type refrigerating device are matched to realize comprehensive recovery, balance and recycling of energy; the solar energy is used to heat the domestic air or hot water, and in winter, the heat is supplied to the indoor and condenser to raise the energy efficiency ratio. The technical scheme does not provide a solution to the problem of low heat supply efficiency of the heat pump unit in winter in the aquaculture process.
Disclosure of Invention
The invention aims to replace a boiler for heating aquaculture and solve the problem of low heating efficiency of the existing heat pump unit in winter, thereby providing an air-water double-heat-source heat pump type aquaculture soil pond temperature control system.
The purpose of the invention can be realized by the following technical scheme:
an air-water double-heat-source heat pump type aquaculture soil pond temperature control system comprises: the system comprises a refrigerant circulation loop module, a water source loop module, an air source module, a water source loop module, a heat exchanger assembly and a four-way valve;
the heat exchanger component comprises a first water source heat exchanger and a second water source heat exchanger, the first water source heat exchanger comprises two heat exchange channels which are respectively a first heat exchange channel and a second heat exchange channel, and the second water source heat exchanger comprises two heat exchange channels which are respectively a third heat exchange channel and a fourth heat exchange channel;
the four-way valve comprises four interfaces which are respectively a first interface, a second interface, a third interface and a fourth interface;
the refrigerant circulating assembly comprises a first electronic expansion valve, a second electronic expansion valve and a compressor, wherein the inlet end of the first electronic expansion valve is connected with the outlet end of the first heat exchange channel, the outlet end of the first electronic expansion valve is connected with the inlet end of the second electronic expansion valve, the outlet end of the second electronic expansion valve is connected with the inlet end of the third heat exchange channel, the outlet end of the third heat exchange channel is connected to the third interface, the inlet end of the compressor is connected with the second interface, and the outlet end of the compressor is connected with the fourth interface;
the air source module comprises an axial flow fan, an air source heat exchanger and a third electronic expansion valve, wherein the air source heat exchanger is a heat exchanger which is connected with a plurality of groups of radiating pipes in series, the axial flow fan is used for blowing air to the outer wall of the air source heat exchanger, the inlet end of the third electronic expansion valve is connected with the outlet end of the first electronic expansion valve, the outlet end of the third electronic expansion valve is connected with the inlet end of the air source heat exchanger, and the inlet end of the air source heat exchanger is connected to a third interface;
the water source first loop is connected with the second heat exchange channel, and the water source first loop can exchange heat in the first heat exchange channel through the second heat exchange channel and be used for heating or cooling the first soil pond;
the water source second loop is connected with the fourth heat exchange channel, and can absorb heat in the second soil pond and transmit the heat to the third heat exchange channel through the fourth heat exchange channel;
furthermore, heat carrying media are filled in the first water source loop and the second water source loop, and the heat carrying media are water or water added with an anti-freezing agent.
The aquaculture soil pond temperature control system has four operation modes, including a water source heating mode, an air source heating mode, a water source and air source heating mode and a refrigerating mode simultaneously:
in the water source heating mode, the first electronic expansion valve and the second electronic expansion valve are in an open state, the third electronic expansion valve is in a closed state, a first interface and a fourth interface in the four-way valve are communicated, and a second interface and a third interface are communicated;
in the air source heating mode, the second electronic expansion valve is in a closed state, the first electronic expansion valve and the third electronic expansion valve are in an open state, a first interface and a fourth interface in the four-way valve are communicated, and a second interface and a third interface are communicated;
under the mode that the water source and the air source are heated simultaneously, the first electronic expansion valve, the second electronic expansion valve and the third electronic expansion valve are all in an open state, a first interface and a fourth interface in the four-way valve are communicated, and a second interface and a third interface are communicated;
in the refrigeration mode, the first electronic expansion valve, the second electronic expansion valve and the third electronic expansion valve are all in an open state, a first interface and a second interface in the four-way valve are communicated, and a third interface and a fourth interface are communicated.
Furthermore, the outer wall of the air source heat exchanger is provided with radiating fins.
Furthermore, the first water source loop comprises a first water pump, a first heat exchange water pipe and a first buffer water tank, the first heat exchange water pipe is laid at the bottom of the first soil pond, the outlet end of the first water pump is connected with the inlet end of the second heat exchange channel, the inlet end of the first water pump is connected with the outlet end of the first heat exchange water pipe, the outlet end of the second heat exchange channel is connected with the inlet end of the first buffer water tank, and the outlet end of the first buffer water tank is connected to the inlet end of the first heat exchange water pipe.
Furthermore, the water source second loop comprises a second water pump, a second heat exchange water pipe and a second buffer water tank, the fourth heat exchange water pipe is laid at the bottom of the second soil pond, the outlet end of the second water pump is connected with the inlet end of a fourth heat exchange channel, the inlet end of the second water pump is connected with the outlet end of the second heat exchange water pipe, the outlet end of the fourth heat exchange channel is connected with the inlet end of the second buffer water tank, and the outlet end of the second buffer water tank is connected to the inlet end of the second heat exchange water pipe.
Furthermore, the outlet ends of the first buffer water tank and the second buffer water tank are respectively provided with a stop valve.
Furthermore, stop valves are arranged at the inlet ends of the first water pump and the second water pump.
Furthermore, a first plastic greenhouse and a second plastic greenhouse are respectively arranged on the first soil pond and the second soil pond.
Furthermore, a detachable straw mat is arranged above the first soil pond.
Furthermore, a plurality of the first soil ponds can be connected in parallel, namely, heat can be provided for a plurality of soil ponds outside the first soil pond through the second soil pond.
Furthermore, the inlet ends and the outlet ends of the heat exchange water pipes in the soil ponds to be heated can be connected in parallel through the water separators.
In the water source heating mode, a first electronic expansion valve and a second electronic expansion valve are opened, a third electronic expansion valve is closed, high-temperature and high-pressure refrigerant gas discharged from a compressor is cooled in a first water source heat exchanger by heat-carrying media pumped by a first water pump, low-temperature and high-pressure refrigerant discharged from the first water source heat exchanger is throttled by a second electronic expansion valve and enters a second water source heat exchanger to exchange heat with the heat-carrying media pumped by a second water pump, and low-temperature and low-pressure refrigerant gas from the second water source heat exchanger enters the compressor to complete a water source heating cycle. The heat-carrying medium heated by the first water source heat exchanger sequentially passes through the first buffer water tank and the first stop valve to heat pond water in the first soil pond, and water cooled by the first heat exchange water pipe passes through the second stop valve and is pumped back to the first water source heat exchanger by the first water pump to complete water source heat supply circulation. And the heat-carrying medium cooled by the second water source heat exchanger sequentially passes through the second buffer water tank and the third stop valve to absorb heat from the pond water in the second soil pond, and the water heated by the second heat exchange water pipe is pumped back to the second water source heat exchanger by the second water pump through the fourth stop valve to finish the water source heat taking cycle.
In the air source heating mode, the second electronic expansion valve is closed, the first electronic expansion valve and the third electronic expansion valve are opened, high-temperature and high-pressure refrigerant gas discharged from the compressor is cooled in the first water source heat exchanger by heat-carrying media pumped by the first water pump, low-temperature and high-pressure refrigerant liquid discharged from the first water source heat exchanger enters the air source heat exchanger through the third electronic expansion valve in a throttling mode, heat exchange is carried out with ambient air conveyed by the axial flow fan, and low-temperature and low-pressure refrigerant gas from the air source heat exchanger enters the compressor through the four-way reversing valve, so that an air source heating cycle is completed. The heat-carrying medium heated by the first water source heat exchanger sequentially passes through the first buffer water tank and the first stop valve to heat pond water in the first soil pond, and water cooled by the first heat exchange water pipe passes through the second stop valve and is pumped back to the first water source heat exchanger by the first water pump to complete water source heat supply circulation.
In the invention, under the mode of simultaneously heating a water source and an air source, a first electronic expansion valve, a second electronic expansion valve and a third electronic expansion valve are opened, high-temperature and high-pressure refrigerant gas discharged from a compressor is cooled in a first water source heat exchanger by heat-carrying medium pumped by a first water pump, low-temperature and high-pressure refrigerant discharged from the first water source heat exchanger is throttled by the third electronic expansion valve and enters the air source heat exchanger and enters a second water source heat exchanger through the second electronic expansion valve respectively, the refrigerant in the air source heat exchanger exchanges heat with the ambient air conveyed by the axial flow fan, the low-temperature and low-pressure refrigerant gas from the air source heat exchanger enters the compressor through the four-way reversing valve, the refrigerant in the second water source heat exchanger exchanges heat with the heat-carrying medium pumped by the second water pump, and the low-temperature and low-pressure refrigerant gas from the second water source heat exchanger enters the compressor, so that the water source and the air source are heated simultaneously. The heat-carrying medium heated by the first water source heat exchanger sequentially passes through the first buffer water tank and the first stop valve to heat the pond water in the first soil pond, and the cooled water of the first heat exchange water pipe is pumped back to the first water source heat exchanger by the first water through the second stop valve to complete the heat supply circulation. And the heat-carrying medium cooled by the second water source heat exchanger sequentially passes through the second buffer water tank and the third stop valve to absorb heat from the pond water of the second soil pond, and the heat-carrying medium heated by the second heat exchange water pipe passes through the fourth stop valve and is pumped back to the second water source heat exchanger by the second water pump to finish the water source heat extraction cycle.
In the refrigeration mode, a first electronic expansion valve, a second electronic expansion valve and a third electronic expansion valve are opened, high-temperature and high-pressure refrigerant gas discharged from a compressor enters an air source heat exchanger to exchange heat with ambient air conveyed by an axial flow fan, low-temperature and high-pressure refrigerant from the air source heat exchanger respectively enters a first water source heat exchanger through the first electronic expansion valve and a second water source heat exchanger through the second electronic expansion valve, the refrigerant in the first water source heat exchanger exchanges heat with heat-carrying medium pumped by a first water pump, low-temperature and low-pressure refrigerant gas from the first water source heat exchanger enters the compressor through a four-way reversing valve, the refrigerant in the second water source heat exchanger exchanges heat with the heat-carrying medium pumped by a second water pump, and the low-temperature and low-pressure refrigerant gas from the second water source heat exchanger enters the compressor, so that the refrigeration mode is realized. The heat-carrying medium cooled by the first water source heat exchanger sequentially passes through the first buffer water tank and the first stop valve to cool the pond water in the first soil pond, and the water heated by the first heat exchange water pipe is pumped back to the first water source heat exchanger by the first water pump through the second stop valve to complete the water source cold supply circulation. And the heat-carrying medium cooled by the second water source heat exchanger sequentially passes through the second buffer water tank and the third stop valve to cool the pond water in the second soil pond, and the water heated by the second heat exchange water pipe is pumped back to the second water source heat exchanger by the second water pump through the fourth stop valve to finish the water source cold supply circulation.
The first stop valve, the second stop valve, the third stop valve and the fourth stop valve are always in an open state when the unit normally works, and are closed or opened as required when the unit is subjected to fault maintenance.
The heating mode and the cooling mode are switched by a four-way reversing valve.
Compared with the prior art, the invention has the following advantages:
1) compared with the existing heat pump unit only exchanging heat from an air source, the air-water double-heat-source heat pump type aquaculture soil pond temperature control system mainly exchanges heat from the nearby pond water, so that a water source heat exchanger, a buffer water tank, two stop valves and a heat exchange water pipe are added, the energy efficiency of the heat pump unit is obviously improved, and heat supply or refrigeration for a plurality of aquaculture soil ponds can be realized by using one heat taking soil pond.
2) The invention provides an air-water dual-heat-source heat pump type aquaculture soil pond temperature control system, which greatly improves COP of the system, can take heat from pond water with the temperature 10 ℃ higher than the ambient temperature in winter, and makes the application of a heat pump technology in the aquaculture industry feasible.
3) Compared with the existing heat pump unit which only exchanges heat from an air source, the heat pump unit mainly exchanges heat from the pond water beside the heat pump unit, and therefore the water source heat exchanger, the buffer water tank, the two stop valves and the heat exchange water pipe are additionally arranged.
4) In the invention, the heat-preservation straw mats can be paved on the heat supply soil pond in cloudy days in winter, and the load of the heat supply soil pond is reduced.
5) The invention can supply heat or refrigerate for a plurality of cultivation soil ponds through one soil pond, thereby reducing the initial investment of farmers.
Drawings
FIG. 1 is a schematic structural diagram of an air-water dual-heat-source heat pump type aquaculture soil pond temperature control system in the invention;
FIG. 2 is another schematic structural diagram of the wind-water dual-heat-source heat pump type aquaculture soil pond temperature control system.
In the figure: 1. a first water source heat exchanger, 2, a first electronic expansion valve, 3, a second electronic expansion valve, 4, a second water source heat exchanger, 5, a third electronic expansion valve, 6, an air source heat exchanger, 7, an axial flow fan, 8, a four-way valve, 81, a first interface, 82, a second interface, 83, a third interface, 84, a fourth interface, 9, a compressor, 10, a first buffer water tank, 11, a first stop valve, 12, a second stop valve, 13, a first heat exchange water pipe, 14, a first water pump, 15, a second buffer water tank, 16, a third stop valve, 17, a second heat exchange water pipe, 18, a fourth stop valve, 19, a second water pump, 20, a first copper connecting pipe, 21, a second copper connecting pipe, 22, a first copper branch pipe, 23, a third copper connecting pipe, 24, a fourth copper connecting pipe, 25, a fifth copper connecting pipe, 26, a second copper branch pipe, 27, a sixth copper connecting pipe, 28. the greenhouse comprises a first PVC water pipe, a second PVC water pipe, a third PVC water pipe, a fourth PVC water pipe, a fifth PVC water pipe, a sixth PVC water pipe, a second PVC water pipe, a first soil pond, a 37, a first vinyl house, a 38, a straw mat, a 39, a second soil pond, a 40, a second vinyl house, a 41, a first water divider, a 42, a second water divider, a 43, a third vinyl house, a 44, a third soil pond, a 45, a second straw mat, a 46, a third heat exchange water pipe, a 47, a fourth vinyl house, a 48, a fourth soil pond, a 49, a third straw mat, a 50 and a fourth heat exchange water pipe.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
An air-water double-heat-source heat pump type aquaculture soil pond temperature control system comprises: a refrigerant circulation loop module, a water source loop module, an air source module, a water source loop module, a heat exchanger assembly and a four-way valve 8, see fig. 1.
The heat exchanger component part: comprising a first water source heat exchanger 1 and a second water source heat exchanger 4, see fig. 1. The first water source heat exchanger 1 comprises two heat exchange channels which are respectively a first heat exchange channel and a second heat exchange channel, and the second water source heat exchanger 4 comprises two heat exchange channels which are respectively a third heat exchange channel and a fourth heat exchange channel.
The four-way valve 8 part: four interfaces are included, a first interface 81, a second interface 82, a third interface 83 and a fourth interface 84, respectively, see fig. 1.
Refrigerant circulation assembly part: the heat exchanger comprises a first electronic expansion valve 2, a second electronic expansion valve 3 and a compressor 9, wherein the inlet end of the first electronic expansion valve 2 is connected with the outlet end of a first heat exchange channel, the outlet end of the first electronic expansion valve 2 is connected with the inlet end of the second electronic expansion valve 3, the outlet end of the second electronic expansion valve 3 is connected with the inlet end of a third heat exchange channel, the outlet end of the third heat exchange channel is connected with a third interface 83, the inlet end of the compressor 9 is connected with a second interface 82, the outlet end of the compressor 9 is connected with a fourth interface 84,
the air source module part: comprising an axial fan 7, an air source heat exchanger 6 and a third electronic expansion valve 5, see fig. 1. Air source heat exchanger 6 for the heat exchanger that has the multiunit cooling tube in series, axial fan 7 be used for to air source heat exchanger 6's outer wall drum air, third electronic expansion valve 5's entry end be connected with first electronic expansion valve 2's exit end, third electronic expansion valve 5's exit end is connected with air source heat exchanger 6's entry end, air source heat exchanger 6's entry end is connected on third interface 83, during the concrete implementation, can be equipped with radiating fin on air source heat exchanger 6's the outer wall to this heat-conduction between air and the area heat transfer refrigerant of strengthening.
Water source loop module part: the heat exchanger comprises a water source first loop and a water source second loop, wherein the water source first loop is connected with a second heat exchange channel, the water source first loop can exchange heat in the first heat exchange channel through the second heat exchange channel and be used for heating the first soil pond 36, the water source second loop is connected with a fourth heat exchange channel, and the water source second loop can absorb heat in the second soil pond 39 and transmit heat to the third heat channel through the fourth heat exchange channel.
The water source first loop comprises a first water pump 14, a first heat exchange water pipe 13 and a first buffer water tank 10, the first heat exchange water pipe 13 is laid at the bottom of the first soil pond 36, the outlet end of the first water pump 14 is connected with the inlet end of the second heat exchange channel, the inlet end of the first water pump 14 is connected with the outlet end of the first heat exchange water pipe 13, the outlet end of the second heat exchange channel is connected with the inlet end of the first buffer water tank 10, and the outlet end of the first buffer water tank 10 is connected to the inlet end of the first heat exchange water pipe 13.
The water source second loop comprises a second water pump 19, a second heat exchange water pipe 17 and a second buffer water tank 15, the fourth heat exchange water pipe 17 is laid at the bottom of the second soil pond 39, the outlet end of the second water pump 19 is connected with the inlet end of a fourth heat exchange channel, the inlet end of the second water pump 19 is connected with the outlet end of the second heat exchange water pipe 17, the outlet end of the fourth heat exchange channel is connected with the inlet end of the second buffer water tank 15, and the outlet end of the second buffer water tank 15 is connected to the inlet end of the second heat exchange water pipe 17. During specific implementation, all be equipped with the stop valve on first buffer water tank 10 and the 15 exit ends of second buffer water tank, all be equipped with the stop valve on the entry end of first water pump 14 and second water pump 19. The first soil pond 36 and the second soil pond 39 are respectively provided with a first plastic greenhouse 37 and a second plastic greenhouse 40. A detachable grass mat 38 is arranged above the first soil pond 36.
According to a specific scene, the invention can open the following four modes:
in the water source heating mode, the first electronic expansion valve 2 and the second electronic expansion valve 3 are in an open state, the third electronic expansion valve 5 is in a closed state, the first interface 81 and the fourth interface 84 in the four-way valve 8 are communicated, and the second interface 82 and the third interface 83 are communicated.
In the air source heating mode, the second electronic expansion valve 3 is in a closed state, the first electronic expansion valve 2 and the third electronic expansion valve 5 are in an open state, the first interface 81 and the fourth interface 84 in the four-way valve 8 are communicated, and the second interface 82 and the third interface 83 are communicated.
In the mode of heating the water source and the air source simultaneously, the first electronic expansion valve 2, the second electronic expansion valve 3 and the third electronic expansion valve 5 are all in an open state, the first interface 81 and the fourth interface 84 in the four-way valve 8 are communicated, and the second interface 82 and the third interface 83 are communicated.
In the cooling mode, the first electronic expansion valve 2, the second electronic expansion valve 3, and the third electronic expansion valve 5 are all in an open state, and the first port 81 and the second port 82 communicate with each other, and the third port 83 and the fourth port 84 communicate with each other in the four-way valve 8.
During the concrete construction, the connection relationship of each part is as follows: referring to fig. 1, a refrigerant inlet end of a first water source heat exchanger 1 is communicated with a first interface 81 of a four-way reversing valve 8 through a connecting pipe 20, an outlet end of the first water source heat exchanger is communicated with an inlet end of an electronic expansion valve 2 through a connecting pipe 21, an outlet end of the first electronic expansion valve 2 is communicated with an inlet end of a second electronic expansion valve 3, an inlet end of a third electronic expansion valve 3 is communicated with an inlet end of the third electronic expansion valve 3 through a branch pipe 22, an outlet end of the second electronic expansion valve 3 is connected with a refrigerant inlet end of a second water source heat exchanger 4 through a connecting pipe 24, an outlet end of the third electronic expansion valve 5 is communicated with an inlet end of an air source heat exchanger 6 through a connecting pipe 23, an air inlet of a compressor 9, a refrigerant outlet end of the second water source heat exchanger 4 is communicated with a second interface 82 of the four-way reversing valve 8 through a branch pipe 26, an outlet end of the air source heat exchanger 6 is communicated with a third interface 83 of the four-way reversing valve 8 through a connecting pipe 25, the discharge port of the compressor 9 communicates with a fourth port 84 of the four-way selector valve 8 via a connecting line 27.
The inlet end of a heat-carrying medium of the first water source heat exchanger 1 is communicated with the outlet end of the first water pump 14 through a connecting pipe 28, the outlet end of the heat-carrying medium of the first water source heat exchanger 1 is communicated with the water inlet end of the first buffer water tank 10 through a PVC water pipe 29, the water outlet end of the first buffer water tank 10 is communicated with the water inlet end of the first stop valve 11 through a first PVC water pipe 30, the water inlet end of the first heat exchange water pipe 13 is communicated with the water outlet end of the first stop valve 11, the water outlet end of the first heat exchange water pipe 13 is communicated with the water inlet end of the second stop valve 12, and the water outlet end of the second stop valve 12 is communicated with the water inlet end of the first water pump 14 through a second PVC water pipe 31.
The heat-carrying medium inlet end of the second water source heat exchanger 4 is communicated with the outlet end of the second water pump 19 through a connecting pipe 32, the heat-carrying medium outlet end of the second water source heat exchanger 4 is communicated with the water inlet end of the second buffer water tank 15 through a fourth PVC water pipe 33, the water outlet end of the second buffer water tank 15 is communicated with the water inlet end of the third stop valve 16 through a fifth PVC water pipe 34, the water inlet end of the second heat exchange water pipe 17 is communicated with the water outlet end of the third stop valve 16, the water outlet end of the second heat exchange water pipe 17 is communicated with the water inlet end of the fourth stop valve 18, and the water outlet end of the fourth stop valve 18 is communicated with the water inlet end of the second water pump 19 through a sixth PVC water pipe 35.
When the material is selected, the first copper connecting pipe 20, the second copper connecting pipe 22, the first copper branch pipe 23, the third copper connecting pipe 24, the fourth copper connecting pipe 25, the fifth copper connecting pipe 26, the second copper branch pipe 27 and the sixth copper connecting pipe are used, that is, a copper material with stronger corrosion capability and larger heat transfer coefficient is adopted in the key refrigerant circuit instead of a PVC material.
In the water source heating mode, the first electronic expansion valve 2 and the second electronic expansion valve 3 are opened, the third electronic expansion valve 5 is closed, the first interface 81 and the fourth interface 84 of the four-way reversing valve 8 are communicated, and the second interface 82 and the third interface 83 are communicated. High-temperature and high-pressure refrigerant gas discharged from the compressor 9 enters the first water source heat exchanger 1 through the connecting pipe 27, the four-way reversing valve 8 and the connecting pipe 20, is cooled by a heat-carrying medium pumped by the first water pump 14 in the first water source heat exchanger 1, low-temperature and high-pressure refrigerant discharged from the first water source heat exchanger 1 enters the second water source heat exchanger 4 through the connecting pipe 21, the first electronic expansion valve 2, the branch pipe 22, the second electronic expansion valve 3 for throttling and the connecting pipe 24, exchanges heat with the heat-carrying medium pumped by the second water pump 19, and low-temperature and low-pressure refrigerant gas from the second water source heat exchanger 4 enters the compressor through the branch pipe 26, so that a heating cycle is completed. The heat-carrying medium heated by the first water source heat exchanger 1 sequentially passes through the PVC water pipe 29, the first buffer water tank 10, the first PVC water pipe 30 and the first stop valve 11 to heat the pond water in the first soil pond 36, and the cooled water in the first heat exchange water pipe 13 sequentially passes through the second stop valve 12 and the second PVC water pipe 31 and is pumped back to the first water source heat exchanger 1 by the first water pump 14 through the PVC water pipe 28 to complete the water source heat supply cycle. The heat-carrying medium cooled by the second water source heat exchanger 4 passes through a fourth PVC water pipe 33, a second buffer water tank 15, a fifth PVC water pipe 34 and a third stop valve 16 in sequence, heat is absorbed from pond water in a second soil pond 39, and the water heated by the second heat exchange water pipe 17 passes through a fourth stop valve 18 and a sixth PVC water pipe 35 in sequence and is pumped back to the second water source heat exchanger 4 by a second water pump 19 through a third PVC water pipe 32, so that the water source heat-taking cycle is completed.
In the air source heating mode, the second electronic expansion valve 3 is closed, the first electronic expansion valve 2 and the third electronic expansion valve 5 are opened, the first interface 81 and the fourth interface 84 of the four-way reversing valve 8 are communicated, and the second interface 82 and the third interface 83 are communicated. High-temperature and high-pressure refrigerant gas discharged from the compressor 9 enters the first water source heat exchanger 1 through the connecting pipe 27, the four-way reversing valve 8 and the connecting pipe 20, the first water source heat exchanger 1 is cooled by a heat-carrying medium pumped by the first water pump 14, low-temperature and high-pressure refrigerant discharged from the first water source heat exchanger 1 enters the air source heat exchanger 6 through the connecting pipe 21, the first electronic expansion valve 2, the branch pipe 22, the third electronic expansion valve 5 and the connecting pipe 23 to exchange heat with ambient air sucked by the axial flow fan 7, and low-temperature and low-pressure refrigerant gas from the air source heat exchanger 6 enters the compressor through the connecting pipe 25, the four-way reversing valve 8 and the branch pipe 26, so that an air source heating cycle is completed. The heat-carrying medium heated by the first water source heat exchanger 1 sequentially passes through the PVC water pipe 29, the first buffer water tank 10, the first PVC water pipe 30 and the first stop valve 11 to heat the pond water in the first soil pond 36, and the cooled water in the first heat exchange water pipe 13 sequentially passes through the second stop valve 12 and the second PVC water pipe 31 and is pumped back to the first water source heat exchanger 1 by the first water pump 14 through the PVC water pipe 28 to complete the air source heat supply cycle.
In the mode of heating the water source and the air source simultaneously, the first electronic expansion valve 2, the second electronic expansion valve 3 and the third electronic expansion valve 5 are opened, the first interface 81 and the fourth interface 84 of the four-way reversing valve 8 are communicated, and the second interface 82 and the third interface 83 are communicated. High-temperature and high-pressure refrigerant gas discharged from a compressor 9 enters a first water source heat exchanger 1 through a connecting pipe 27, a four-way reversing valve 8 and a connecting pipe 20, the first water source heat exchanger 1 is cooled by heat-carrying medium pumped by a first water pump 14, low-temperature and high-pressure refrigerant discharged from the first water source heat exchanger 1 enters an air source heat exchanger 6 through a connecting pipe 21, a first electronic expansion valve 2 and a branch pipe 22, the low-temperature and high-pressure refrigerant enters a second water source heat exchanger 4 through a third electronic expansion valve 5 and a connecting pipe 23 and a second electronic expansion valve 3 respectively, the low-temperature and high-pressure refrigerant gas exchanges heat with ambient air conveyed by an axial flow fan 7, the low-temperature and low-pressure refrigerant gas from the air source heat exchanger 6 enters the compressor through a connecting pipe 25 and the four-way reversing valve 8, the refrigerant in the second water source heat exchanger 4 exchanges heat with the heat-carrying medium pumped by a second water pump 19, the low-temperature and low-pressure refrigerant gas from the second water source heat exchanger 4 enters the compressor 9 through a branch pipe, so that the water source and the air source are heated simultaneously.
The heat-carrying medium heated by the first water source heat exchanger 1 sequentially passes through the PVC water pipe 29, the first buffer water tank 10, the first PVC water pipe 30 and the first stop valve 11 to heat the pond water in the first soil pond 36, and the cooled water in the first heat exchange water pipe 13 sequentially passes through the second stop valve 12 and the second PVC water pipe 31 and is pumped back to the first water source heat exchanger 1 by the first water pump 14 through the PVC water pipe 28 to complete the heat supply cycle. The heat-carrying medium cooled by the second water source heat exchanger 4 passes through a fourth PVC water pipe 33, a second buffer water tank 15, a fifth PVC water pipe 34 and a third stop valve 16 in sequence, heat is absorbed from pond water in a second soil pond 39, and the water heated by the second heat exchange water pipe 17 passes through a fourth stop valve 18 and a sixth PVC water pipe 35 in sequence and is pumped back to the second water source heat exchanger 4 by a second water pump 19 through a third PVC water pipe 32, so that the water source heat-taking cycle is completed.
In the cooling mode, the first electronic expansion valve 2, the second electronic expansion valve 3 and the third electronic expansion valve 5 are opened, the first interface 81 and the second interface 82 of the four-way reversing valve 8 are communicated with each other, and the third interface 83 and the fourth interface 84 are communicated with each other. High-temperature and high-pressure refrigerant gas discharged from a compressor 9 enters an air source heat exchanger 6 through a connecting pipe 25 to exchange heat with ambient air conveyed by an axial flow fan 7, low-temperature and high-pressure refrigerant from the air source heat exchanger enters a first water source heat exchanger 1 through a connecting pipe 23, a third electronic expansion valve 5 and a branch pipe 22, respectively enters a second water source heat exchanger 4 through a first electronic expansion valve 2 throttling and a connecting pipe 21 throttling and a second electronic expansion valve 3 throttling and a connecting pipe 24, refrigerant in the first water source heat exchanger 1 exchanges heat with heat-carrying medium pumped by a first water pump 14, low-temperature and low-pressure refrigerant gas from the first water source heat exchanger 1 enters the compressor through a connecting pipe 20 and a four-way reversing valve 8, refrigerant in the second water source heat exchanger 4 exchanges heat with the heat-carrying medium pumped by a second water pump 19, and low-temperature and low-pressure refrigerant gas from the second water source heat exchanger 4 enters the compressor through a branch pipe 26, a cooling mode is implemented. The heat-carrying medium cooled by the first water source heat exchanger 1 passes through the PVC water pipe 29, the first buffer water tank 10, the first PVC water pipe 30 and the first stop valve 11 in sequence to cool the pond water in the first soil pond 36, and the water heated by the first heat exchange water pipe 13 passes through the second stop valve 12 and the second PVC water pipe 31 in sequence and is pumped back to the first water source heat exchanger 1 by the first water pump 14 through the PVC water pipe 28 to complete the cooling circulation. The heat-carrying medium cooled by the second water source heat exchanger 4 passes through a fourth PVC water pipe 33, a second buffer water tank 15, a fifth PVC water pipe 34 and a third stop valve 16 in sequence to cool the pond water in the second soil pond 39, and the water heated by the second heat exchange water pipe 17 passes through a fourth stop valve 18 and a sixth PVC water pipe 35 in sequence and is pumped back to the second water source heat exchanger 4 by a second water pump 19 through a third PVC water pipe 32 to complete the cooling circulation.
The first stop valve 11, the second stop valve 12, the third stop valve 16 and the fourth stop valve 18 are always in an open state when the unit normally works, and are closed or opened as required when the unit is in maintenance due to failure.
The heating mode and the cooling mode are switched by the four-way reversing valve 8.
In summer, the grass mat 38 is covered for shading sun in the daytime, the grass mat 38 is lifted for heat dissipation at night, and a refrigeration mode is adopted.
In winter, the grass mat 38 is lifted to absorb solar energy in the daytime, the grass mat 38 is paved at night to preserve heat, and a water source heating mode or an air source heating mode or a water source and air source simultaneous heating mode is adopted.
Example 2
In this embodiment, a second pond 39 is used to provide heat to a plurality of ponds, as distinguished from example 1, and with reference to fig. 2, this corresponds to providing heat simultaneously to the first pond 36, the third pond 44 and the fourth pond 48 in parallel relationship to one another.
The connection relation of each part is as follows: the inlet end of the refrigerant of the first water source heat exchanger 1 is communicated with a first interface 81 of the four-way reversing valve 8 through a connecting pipe 20, the outlet end is communicated with the inlet end of the electronic expansion valve 2 through a connecting pipe 21, the outlet end of the electronic expansion valve 2 is communicated with the inlet end of the second electronic expansion valve 3 and the inlet end of the third electronic expansion valve 5 through a branch pipe 22, the outlet end of the second electronic expansion valve 3 is connected with the refrigerant inlet end of the second water source heat exchanger 4 through a connecting pipe 24, the outlet end of the third electronic expansion valve 5 is communicated with the inlet end of the air source heat exchanger 6 through a connecting pipe 23, the air inlet of the compressor 9 and the refrigerant outlet end of the second water source heat exchanger 4 are communicated with an interface second interface 82 of the four-way reversing valve 8 through a branch pipe 26, and the outlet end of the air source heat exchanger 6 is communicated with a third interface 83 of the four-way reversing valve 8 through a connecting pipe 25, the discharge port of the compressor 9 communicates with a fourth port 84 of the four-way selector valve 8 via a connecting line 27.
The inlet end of the heat-carrying medium of the first water source heat exchanger 1 is communicated with the outlet end of the first water pump 14 through a connecting pipe 28, the outlet end of the heat-carrying medium of the first water source heat exchanger 1 is communicated with the water inlet end of the first buffer water tank 10 through a PVC water pipe 29, the water outlet end of the first buffer water tank 10 is communicated with the water inlet end of the first stop valve 11 through a first PVC water pipe 30, the water inlet end of the first water separator 41 is communicated with the water outlet end of the first stop valve 11 through a PVC water pipe 51, the water outlet end of the second water separator 42 is communicated with the water inlet end of the second stop valve 12 through a PVC water pipe 52, the water inlet ends of the first heat exchange water pipe 13, the third heat exchange water pipe 46 and the fourth heat exchange water pipe 50 are respectively communicated with three ports of the first water separator 41, the first heat exchange water pipe 13, the water outlet ends of the third heat exchange water pipe 46 and the fourth heat exchange water pipe 50 are respectively communicated with three connectors of the second water divider 42, and the water outlet end of the second stop valve 12 is communicated with the inlet end of the first water pump 14 through the second PVC water pipe 31.
The heat-carrying medium inlet end of the second water source heat exchanger 4 is communicated with the outlet end of the second water pump 19 through a connecting pipe 32, the heat-carrying medium outlet end of the second water source heat exchanger 4 is communicated with the water inlet end of the second buffer water tank 15 through a fourth PVC water pipe 33, the water outlet end of the second buffer water tank 15 is communicated with the water inlet end of the third stop valve 16 through a fifth PVC water pipe 34, the water inlet end of the second heat exchange water pipe 17 is communicated with the water outlet end of the third stop valve 16, the water outlet end of the second heat exchange water pipe 17 is communicated with the water inlet end of the fourth stop valve 18, and the water outlet end of the fourth stop valve 18 is communicated with the water inlet end of the second water pump 19 through a sixth PVC water pipe 35.
In the water source heating mode, the first electronic expansion valve 2 and the second electronic expansion valve 3 are opened, the third electronic expansion valve 5 is closed, the first interface 81 and the fourth interface 84 of the four-way reversing valve 8 are communicated, and the second interface 82 and the third interface 83 are communicated. High-temperature and high-pressure refrigerant gas discharged from the compressor 9 enters the first water source heat exchanger 1 through the connecting pipe 27, the four-way reversing valve 8 and the connecting pipe 20, is cooled by a heat-carrying medium pumped by the first water pump 14 in the first water source heat exchanger 1, low-temperature and high-pressure refrigerant discharged from the first water source heat exchanger 1 enters the second water source heat exchanger 4 through the connecting pipe 21, the first electronic expansion valve 2, the branch pipe 22, the second electronic expansion valve 3 for throttling and the connecting pipe 24, exchanges heat with the heat-carrying medium pumped by the second water pump 19, and low-temperature and low-pressure refrigerant gas from the second water source heat exchanger 4 enters the compressor through the branch pipe 26, so that a heating cycle is completed.
The heat-carrying medium heated by the first water source heat exchanger 1 sequentially passes through the PVC water pipe 29, the first buffer water tank 10, the first PVC water pipe 30, the first stop valve 11, the PVC water pipe 51 and the first water divider 41 and respectively enters the first water pipe 13, the third water pipe 46 and the fourth water pipe 50 so as to respectively heat the first soil pond 36, the third soil pond 44 and the fourth soil pond 48, and the cooled water of the first water pipe 13, the third water pipe 46 and the fourth water pipe 50 sequentially passes through the second water divider 42, the PVC water pipe 51, the second stop valve 12 and the second PVC water pipe 31 and is pumped back to the first water source heat exchanger 1 through the PVC water pipe 28 by the first water pump 14 to complete the water source heat supply cycle.
The heat-carrying medium cooled by the second water source heat exchanger 4 passes through a fourth PVC water pipe 33, a second buffer water tank 15, a fifth PVC water pipe 34 and a third stop valve 16 in sequence, heat is absorbed from pond water in a second soil pond 39, and the water heated by the second heat exchange water pipe 17 passes through a fourth stop valve 18 and a sixth PVC water pipe 35 in sequence and is pumped back to the second water source heat exchanger 4 by a second water pump 19 through a third PVC water pipe 32, so that the water source heat-taking cycle is completed.
In the air source heating mode, the second electronic expansion valve 3 is closed, the first electronic expansion valve 2 and the third electronic expansion valve 5 are opened, the first interface 81 and the fourth interface 84 of the four-way reversing valve 8 are communicated, and the second interface 82 and the third interface 83 are communicated. High-temperature and high-pressure refrigerant gas discharged from the compressor 9 enters the first water source heat exchanger 1 through the connecting pipe 27, the four-way reversing valve 8 and the connecting pipe 20, the first water source heat exchanger 1 is cooled by a heat-carrying medium pumped by the first water pump 14, low-temperature and high-pressure refrigerant discharged from the first water source heat exchanger 1 enters the air source heat exchanger 6 through the connecting pipe 21, the first electronic expansion valve 2, the branch pipe 22, the third electronic expansion valve 5 and the connecting pipe 23 to exchange heat with ambient air sucked by the axial flow fan 7, and low-temperature and low-pressure refrigerant gas from the air source heat exchanger 6 enters the compressor through the connecting pipe 25, the four-way reversing valve 8 and the branch pipe 26, so that an air source heating cycle is completed.
The heat-carrying medium heated by the first water source heat exchanger 1 sequentially passes through the PVC water pipe 29, the first buffer water tank 10, the first PVC water pipe 30, the first stop valve 11, the PVC water pipe 51 and the first water divider 41 and respectively enters the first water pipe 13, the third water pipe 46 and the fourth water pipe 50 so as to respectively heat the first soil pond 36, the third soil pond 44 and the fourth soil pond 48, and the cooled water of the first water pipe 13, the third water pipe 46 and the fourth water pipe 50 sequentially passes through the second water divider 42, the PVC water pipe 51, the second stop valve 12 and the second PVC water pipe 31 and is pumped back to the first water source heat exchanger 1 through the PVC water pipe 28 by the first water pump 14 to complete the air source heat supply cycle.
In the mode of heating the water source and the air source simultaneously, the first electronic expansion valve 2, the second electronic expansion valve 3 and the third electronic expansion valve 5 are opened, the first interface 81 and the fourth interface 84 of the four-way reversing valve 8 are communicated, and the second interface 82 and the third interface 83 are communicated. High-temperature and high-pressure refrigerant gas discharged from a compressor 9 enters a first water source heat exchanger 1 through a connecting pipe 27, a four-way reversing valve 8 and a connecting pipe 20, the first water source heat exchanger 1 is cooled by heat-carrying media pumped by a first water pump 14, low-temperature and high-pressure refrigerant discharged from the first water source heat exchanger 1 enters an air source heat exchanger 6 through a connecting pipe 21, a first electronic expansion valve 2 and a branch pipe 22, is throttled by a third electronic expansion valve 5 and a connecting pipe 23 respectively, enters a second water source heat exchanger 4 through a second electronic expansion valve 3 and a connecting pipe 24, the refrigerant in the air source heat exchanger 6 exchanges heat with ambient air conveyed by an axial flow fan 7, the low-temperature and low-pressure refrigerant gas from the air source heat exchanger 6 enters the compressor through a connecting pipe 25 and the four-way reversing valve 8, the refrigerant in the second water source heat exchanger 4 exchanges heat with the heat-carrying media pumped by a second water pump 19, the low-temperature and low-pressure refrigerant gas from the second water source heat exchanger 4 enters the compressor 9 through a branch pipe, so that the water source and the air source are heated simultaneously.
The heat-carrying medium heated by the first water source heat exchanger 1 sequentially passes through the PVC water pipe 29, the first buffer water tank 10, the first PVC water pipe 30, the first stop valve 11, the PVC water pipe 51 and the first water divider 41 and respectively enters the first water pipe 13, the third water pipe 46 and the fourth water pipe 50 so as to respectively heat the first soil pond 36, the third soil pond 44 and the fourth soil pond 48, and the cooled water of the first water pipe 13, the third water pipe 46 and the fourth water pipe 50 sequentially passes through the second water divider 42, the PVC water pipe 51, the second stop valve 12 and the second PVC water pipe 31 and is pumped back to the first water source heat exchanger 1 through the PVC water pipe 28 by the first water pump 14 to complete the water source heat supply cycle. The heat-carrying medium cooled by the second water source heat exchanger 4 passes through a fourth PVC water pipe 33, a second buffer water tank 15, a fifth PVC water pipe 34 and a third stop valve 16 in sequence, heat is absorbed from pond water in a second soil pond 39, and the water heated by the second heat exchange water pipe 17 passes through a fourth stop valve 18 and a sixth PVC water pipe 35 in sequence and is pumped back to the second water source heat exchanger 4 by a second water pump 19 through a third PVC water pipe 32, so that the water source heat-taking cycle is completed.
In the cooling mode, the first electronic expansion valve 2, the second electronic expansion valve 3 and the third electronic expansion valve 5 are opened, the first interface 81 and the second interface 82 of the four-way reversing valve 8 are communicated with each other, and the third interface 83 and the fourth interface 84 are communicated with each other. High-temperature and high-pressure refrigerant gas discharged from a compressor 9 enters an air source heat exchanger 6 through a connecting pipe 25 to exchange heat with ambient air conveyed by an axial flow fan 7, low-temperature and high-pressure refrigerant from the air source heat exchanger 6 passes through a connecting pipe 23, a third electronic expansion valve 5 and a branch pipe 22, is respectively throttled by a first electronic expansion valve 2, enters a first water source heat exchanger 1 through a connecting pipe 21 and is throttled by a second electronic expansion valve 3 and enters a second water source heat exchanger 4 through a connecting pipe 24, the refrigerant in the first water source heat exchanger 1 exchanges heat with heat-carrying medium pumped by a first water pump 14, low-temperature and low-pressure refrigerant gas from the first water source heat exchanger 1 enters the compressor through a connecting pipe 20 and a four-way reversing valve 8, the refrigerant in the second water source heat exchanger 4 exchanges heat with the heat-carrying medium pumped by a second water pump 19, and the low-temperature and low-pressure refrigerant gas from the second water source heat exchanger 4 enters the compressor through a branch pipe 26, a cooling mode is implemented.
The heat-carrying medium cooled by the first water source heat exchanger 1 sequentially passes through the PVC water pipe 29, the first buffer water tank 10, the first PVC water pipe 30, the first stop valve 11, the PVC water pipe 51 and the first water divider 41 and respectively enters the first water pipe 13, the third water pipe 46 and the fourth water pipe 50 so as to respectively cool the first soil pond 36, the third soil pond 44 and the fourth soil pond 48, and the water heated by the first water pipe 13, the third water pipe 46 and the fourth water pipe 50 sequentially passes through the second water divider 42, the PVC water pipe 51, the second stop valve 12 and the second PVC water pipe 31 and is pumped back to the first water source heat exchanger 1 through the PVC water pipe 28 by the first water pump 14 to complete the water source refrigeration cycle. The heat-carrying medium cooled by the second water source heat exchanger 4 passes through a fourth PVC water pipe 33, a second buffer water tank 15, a fifth PVC water pipe 34 and a third stop valve 16 in sequence to cool the pond water in the second soil pond 39, and the water heated by the second heat exchange water pipe 17 passes through a fourth stop valve 18 and a sixth PVC water pipe 35 in sequence and is pumped back to the second water source heat exchanger 4 by a second water pump 19 through a third PVC water pipe 32 to complete the cooling circulation.
The first stop valve 11, the second stop valve 12, the third stop valve 16 and the fourth stop valve 18 are always in an open state when the unit normally works, and are closed or opened as required when the unit is in maintenance due to failure.
The heating mode and the cooling mode are switched by the four-way reversing valve 8.
In summer, the grass mat 38 is covered for shading sun in the daytime, the grass mat 38 is lifted for heat dissipation at night, and a refrigeration mode is adopted.
In winter, the grass mat 38 is lifted to absorb solar energy in the daytime, the grass mat 38 is paved at night to preserve heat, and a water source heating mode or an air source heating mode or a water source and air source simultaneous heating mode is adopted.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (8)
1. The utility model provides a geomantic omen water double heat source heat pump type aquaculture soil pond temperature control system which characterized in that includes: the system comprises a refrigerant circulation loop module, a water source loop module, an air source module, a water source loop module, a heat exchanger assembly and a four-way valve (8);
the heat exchanger component comprises a first water source heat exchanger (1) and a second water source heat exchanger (4), the first water source heat exchanger (1) comprises two heat exchange channels which are a first heat exchange channel and a second heat exchange channel respectively, and the second water source heat exchanger (4) comprises two heat exchange channels which are a third heat exchange channel and a fourth heat exchange channel respectively;
the four-way valve (8) comprises four interfaces which are respectively a first interface (81), a second interface (82), a third interface (83) and a fourth interface (84);
the refrigerant circulation assembly comprises a first electronic expansion valve (2), a second electronic expansion valve (3) and a compressor (9), wherein the inlet end of the first electronic expansion valve (2) is connected with the outlet end of a first heat exchange channel, the outlet end of the first electronic expansion valve (2) is connected with the inlet end of the second electronic expansion valve (3), the outlet end of the second electronic expansion valve (3) is connected with the inlet end of a third heat exchange channel, the outlet end of the third heat exchange channel is connected to a third interface (83), the inlet end of the compressor (9) is connected with a second interface (82), and the outlet end of the compressor (9) is connected with a fourth interface (84);
the air source module comprises an axial flow fan (7), an air source heat exchanger (6) and a third electronic expansion valve (5), the air source heat exchanger (6) is a heat exchanger which is connected with a plurality of groups of radiating pipes in series, the axial flow fan (7) is used for blowing air to the outer wall of the air source heat exchanger (6), the inlet end of the third electronic expansion valve (5) is connected with the outlet end of the first electronic expansion valve (2), the outlet end of the third electronic expansion valve (5) is connected with the inlet end of the air source heat exchanger (6), and the inlet end of the air source heat exchanger (6) is connected to a third interface (83);
the water source loop module comprises a water source first loop and a water source second loop, the water source first loop is connected with the second heat exchange channel, and the water source first loop can exchange heat in the first heat exchange channel through the second heat exchange channel and is used for heating the first soil pond (36);
the water source second loop is connected with the fourth heat exchange channel, and can absorb the heat in the second soil pond (39) and transmit the heat to the third heat exchange channel through the fourth heat exchange channel;
the aquaculture soil pond temperature control system has four operation modes, including a water source heating mode, an air source heating mode, a water source and air source simultaneous heating mode and a refrigerating mode;
in the water source heating mode, a first electronic expansion valve (2) and a second electronic expansion valve (3) are in an open state, a third electronic expansion valve (5) is in a closed state, a first interface (81) and a fourth interface (84) in a four-way valve (8) are communicated, and a second interface (82) and a third interface (83) are communicated;
in the air source heating mode, the second electronic expansion valve (3) is in a closed state, the first electronic expansion valve (2) and the third electronic expansion valve (5) are in an open state, a first interface (81) and a fourth interface (84) in the four-way valve (8) are communicated, and a second interface (82) and a third interface (83) are communicated;
under the mode that a water source and an air source simultaneously heat, a first electronic expansion valve (2), a second electronic expansion valve (3) and a third electronic expansion valve (5) are all in an open state, a first interface (81) and a fourth interface (84) in a four-way valve (8) are communicated, and a second interface (82) and a third interface (83) are communicated;
in a cooling mode, the first electronic expansion valve (2), the second electronic expansion valve (3) and the third electronic expansion valve (5) are all in an open state, a first interface (81) and a second interface (82) in the four-way valve (8) are communicated, and a third interface (83) and a fourth interface (84) are communicated.
2. The air-water dual-heat-source heat pump type aquaculture soil pond temperature control system according to claim 1, characterized in that heat radiating fins are arranged on the outer wall of the air source heat exchanger (6).
3. The temperature control system for the aquaculture soil pond of the wind-water double-heat-source heat pump type according to claim 1, wherein the water source first loop comprises a first water pump (14), a first heat exchange water pipe (13) and a first buffer water tank (10), the first heat exchange water pipe (13) is laid at the bottom of the first soil pond (36), the outlet end of the first water pump (14) is connected with the inlet end of the second heat exchange channel, the inlet end of the first water pump (14) is connected with the outlet end of the first heat exchange water pipe (13), the outlet end of the second heat exchange channel is connected with the inlet end of the first buffer water tank (10), and the outlet end of the first buffer water tank (10) is connected with the inlet end of the first heat exchange water pipe (13).
4. The temperature control system for the aquaculture soil pond of the wind-water double-heat-source heat pump type according to claim 3, wherein the water source second loop comprises a second water pump (19), a second heat exchange water pipe (17) and a second buffer water tank (15), the fourth heat exchange water pipe (17) is laid at the bottom of the second soil pond (39), the outlet end of the second water pump (19) is connected with the inlet end of a fourth heat exchange channel, the inlet end of the second water pump (19) is connected with the outlet end of the second heat exchange water pipe (17), the outlet end of the fourth heat exchange channel is connected with the inlet end of the second buffer water tank (15), and the outlet end of the second buffer water tank (15) is connected with the inlet end of the second heat exchange water pipe (17).
5. The air-water dual-heat-source heat pump type aquaculture pond temperature control system according to claim 4, characterized in that stop valves are arranged at the outlet ends of the first buffer water tank (10) and the second buffer water tank (15).
6. The air-water dual-heat-source heat pump type aquaculture pond temperature control system according to claim 4, characterized in that stop valves are arranged at the inlet ends of the first water pump (14) and the second water pump (19).
7. The air-water dual-heat-source heat pump type aquaculture soil pond temperature control system according to claim 1, characterized in that a first plastic greenhouse (37) and a second plastic greenhouse (40) are respectively arranged on the first soil pond (36) and the second soil pond (39).
8. The air-water dual-heat-source heat pump type aquaculture soil pond temperature control system according to claim 7, characterized in that a detachable grass mat (38) is arranged above the first soil pond (36).
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| CN111587817A (en) * | 2020-06-16 | 2020-08-28 | 广州万佳智能设备有限公司 | Constant-temperature water supply system for animal husbandry |
| CN114467841B (en) * | 2022-01-20 | 2023-04-14 | 佛山市六融制冷科技有限公司 | Seafood machine system, operation method and seafood machine |
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