CN204141780U - The water loop heat pump air conditioning system of cold and heat combined supply - Google Patents

The water loop heat pump air conditioning system of cold and heat combined supply Download PDF

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Publication number
CN204141780U
CN204141780U CN201420545512.1U CN201420545512U CN204141780U CN 204141780 U CN204141780 U CN 204141780U CN 201420545512 U CN201420545512 U CN 201420545512U CN 204141780 U CN204141780 U CN 204141780U
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water
valve
heat exchanger
plate type
type heat
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CN201420545512.1U
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宋海鹰
周卫
谢敏
林婷婷
吴浠
梁朝开
潘海成
黄楚瑜
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Guangdong Polytechnic Normal University
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Guangdong Polytechnic Normal University
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Abstract

The utility model discloses a kind of water loop heat pump air conditioning system of cold and heat combined supply, comprise domestic hot-water's subsystem, new wind subsystem, water-water heat pump Sources and sinks hybrid ring subsystems and fan coil disposed in the interior; Described domestic hot-water's subsystem comprises the first plate type heat exchanger, the second plate type heat exchanger, three-plate type heat exchanger, heat accumulation water pot, rapid heater and water pump, described new wind subsystem comprises Fresh air handling units, return fan, heat reclamation device, multiple fresh wind port and multiple return air inlet, a fresh wind port and a return air inlet are set in same indoor, described water-water heat pump Sources and sinks hybrid ring subsystems comprises water-water heat pump unit, and described water-water heat pump unit is connected with three-plate type heat exchanger and fan coil respectively.Waste heat recovery can utilize by the utility model system, by cooperatively interacting of each subsystem, not only can at summer cooling and provide hot water, and also can heat supply and hot water is provided in the winter time, meet the demand of user.

Description

The water loop heat pump air conditioning system of cold and heat combined supply
Technical field
The present invention relates to a kind of water loop heat pump air conditioning system, especially a kind of water loop heat pump air conditioning system of cold and heat combined supply, belongs to air-conditioning system technical field.
Background technology
Water loop heat pump air conditioning system refers to a kind of application mode of small-sized water/air heat pump unit, namely by water loops, small-sized water/source pump is connected in parallel, form a closed loop, form the heat pump heating of a set of recovery interior of building waste heat as its low level heat energy, the air-conditioning system of cooling.
In summer, the water in current water loop heat pump air conditioning system/air heat pump unit is substantially pressed cooling condition and is run, and its condensation heat is discharged by heat dissipation equipment.But this mode wastes a large amount of condenser heats, also produce harmful effect to city hot island phenomenon, this is also the problem of all air-conditioning system Notables, if this unnecessary heat is reclaimed, can not only alleviate city hot island phenomenon, can also be the many energy of heating system saving.Therefore, provide and the water loop heat pump air conditioning system of the band hot water supply system of heat recovery can have been become current a kind of trend.
Summary of the invention
The object of the invention is the defect in order to solve above-mentioned prior art, providing a kind of structure simple, easy to use, waste heat recovery can be carried out the water loop heat pump air conditioning system of the cold and heat combined supply utilized.
Object of the present invention can reach by taking following technical scheme:
The water loop heat pump air conditioning system of cold and heat combined supply, comprises domestic hot-water's subsystem, new wind subsystem, water-water heat pump Sources and sinks hybrid ring subsystems and fan coil disposed in the interior;
Described domestic hot-water's subsystem comprises the first plate type heat exchanger, the second plate type heat exchanger, three-plate type heat exchanger, heat accumulation water pot, rapid heater and water pump, described first plate type heat exchanger, the second plate type heat exchanger, three-plate type heat exchanger are connected successively with heat accumulation water pot, described water pump is connected with the first plate type heat exchanger and heat accumulation water pot respectively, and described first plate type heat exchanger is also connected with running water inlet by the first pipeline;
Described new wind subsystem comprises Fresh air handling units, return fan, heat reclamation device, multiple fresh wind port and multiple return air inlet, a fresh wind port and a return air inlet are set in same indoor, described Fresh air handling units is connected with fresh wind port by air supply duct, described return fan is connected with return air inlet by return air duct, and described heat reclamation device is connected with Fresh air handling units, return fan, the first plate type heat exchanger and three-plate type heat exchanger respectively;
Described water-water heat pump Sources and sinks hybrid ring subsystems comprises water-water heat pump unit, and described water-water heat pump unit is connected with three-plate type heat exchanger and fan coil respectively.
As a kind of preferred version, described Fresh air handling units comprises new air-valve, air cleaner, preheater, air heat exchanger, reheater, blower fan, the first compressor, four-way change-over valve, water-refrigerant heat exchanger, gas-liquid separator, high-pressure reservoir, device for drying and filtering, first throttle valve, second throttle, again thermal valve, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve and the 4th magnetic valve; Described new air-valve, air cleaner, preheater, air heat exchanger, reheater are connected successively with blower fan, described blower fan is connected with fresh wind port by air supply duct, described water-refrigerant heat exchanger has chilled water and imports and exports, and this chilled water is imported and exported and is connected with heat reclamation device; When Fresh air handling units cooling, first magnetic valve and the 3rd closed electromagnetic valve, second magnetic valve and the 4th magnetic valve are opened, and described first compressor, four-way change-over valve, again thermal valve, reheater, water-refrigerant heat exchanger, the 4th magnetic valve, high-pressure reservoir, device for drying and filtering, the second magnetic valve, first throttle valve, air heat exchanger, four-way change-over valve, gas-liquid separator are connected successively with the first compressor; When Fresh air handling units heat supply, first magnetic valve and the 3rd magnetic valve are opened, second magnetic valve and the 4th closed electromagnetic valve, described first compressor, four-way change-over valve, air heat exchanger, the first magnetic valve, high-pressure reservoir, device for drying and filtering, the 3rd magnetic valve, second throttle, water-refrigerant heat exchanger, again thermal valve, four-way change-over valve, gas-liquid separator are connected successively with the first compressor.
As a kind of preferred version, described Fresh air handling units also comprises heating pipe magnetic valve and hot gas bypass valve, the pipeline that described first compressor is connected with four-way change-over valve is the second pipeline, the pipeline that described first throttle valve is connected with air heat exchanger is the 3rd pipeline, one end of described heating pipe magnetic valve is connected with the second pipeline, one end of the described other end and hot gas bypass valve of stating heating pipe magnetic valve is connected, and the other end of described hot gas bypass valve is connected with the 3rd pipeline.
As a kind of preferred version, described water-water heat pump unit comprises the second compressor, electric expansion valve, the 4th plate type heat exchanger, the 5th plate type heat exchanger, the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve, the 7th valve and the 8th valve, be provided with the first circulating pump between described fan coil and water-water heat pump unit, described three-plate type heat exchanger be provided with the 9th valve, the tenth valve and the second circulating pump that are connected successively between water-water heat pump unit; When water-water heat pump unit runs with refrigeration machine operating mode, described first valve, the 4th plate type heat exchanger, the second valve, the first circulating pump and fan coil connect and compose chilled water circuit successively, and described second compressor, the 4th plate type heat exchanger, electric expansion valve and the 5th plate type heat exchanger connect and compose refrigeration cycle successively; When water-water heat pump unit runs with heat pump machine operating mode, described 5th valve, the 5th plate type heat exchanger, the 6th valve, the first circulating pump and fan coil connect and compose high-temperature-hot-water closed circuit successively, and described second compressor, the 4th plate type heat exchanger, electric expansion valve and the 5th plate type heat exchanger connect and compose successively and heat closed circuit.
As a kind of preferred version, described water loop heat pump air conditioning system also comprises cooling water subsystem, described cooling water subsystem comprises cooling tower, the 3rd circulating pump, the 6th plate type heat exchanger, the 11 valve and the 12 valve, described cooling tower, the 3rd circulating pump and the 6th plate type heat exchanger connect and compose cooling circuit successively, and described 6th plate type heat exchanger is also connected to the two ends of the tenth valve by the 11 valve and the 12 valve; When water-water heat pump unit runs with refrigeration machine operating mode, described 5th plate type heat exchanger, the 4th valve, three-plate type heat exchanger, the 9th valve, cooling water subsystem, the second circulating pump and the 3rd valve connect and compose chilled(cooling) water return (CWR) successively.
As a kind of preferred version, described water loop heat pump air conditioning system also comprises ground thermal sub-system, described ground thermal sub-system comprises the 13 valve, the 14 valve and underground pipe, and described underground pipe is connected to the two ends of the 9th valve respectively by the 13 valve and the 14 valve; When water-water heat pump unit runs with heat pump machine operating mode, described 4th plate type heat exchanger, the 8th valve, three-plate type heat exchanger, thermal sub-system, the second circulating pump and the 7th valve connect and compose low-temperature water heating closed circuit successively.
As a kind of preferred version, described domestic hot-water's subsystem also comprises solar thermal collector, and described solar thermal collector is connected with the second plate type heat exchanger.
As a kind of preferred version, described domestic hot-water's subsystem also comprises water compensating valve, and described water compensating valve is connected with water pump.
The present invention has following beneficial effect relative to prior art:
1, in the new wind subsystem of present system, Fresh air handling units can filter outdoor air, then confession cold treatment is carried out in summer, carry out confession heat treatment in the winter time, directly indoor are entered after transition season filters, for indoor provide fresh air, room air can utilize heat reclamation device to carry out waste heat recovery after return fan is extracted out, then domestic hot-water's subsystem is supplied to, the chilled water of Fresh air handling units is imported and exported and can be connected to fan coil water loops by heat reclamation device through the wa-ter-ring circuit of water-water heat pump Sources and sinks hybrid ring subsystems, to realize making full use of of cryogenic freezing water-cooled amount.
2, the water-water heat pump Sources and sinks hybrid ring subsystems of present system, in conjunction with cooling water subsystem and ground thermal sub-system, make water-water heat pump unit when running with refrigeration machine operating mode summer, for system provides cooling water, when making water-water heat pump unit run with heat pump machine operating mode in the winter time, for system provides low-temperature water heating.
3, present system is that structure is simple, easy to use, waste heat recovery can be utilized, and by cooperatively interacting of each subsystem, not only at summer cooling and can provide hot water, also can heat supply and provide hot water in the winter time, meets the demand of user.
Accompanying drawing explanation
Fig. 1 is the water loop heat pump air conditioning system structural representation of the cold and heat combined supply of the embodiment of the present invention 1.
Fig. 2 is Fresh air handling units structural representation in the water loop heat pump air conditioning system of the cold and heat combined supply of the embodiment of the present invention 1.
Wherein, 1-fan coil, 2-first plate type heat exchanger, 3-second plate type heat exchanger, 4-three-plate type heat exchanger, 5-heat accumulation water pot, 6-rapid heater, 7-water pump, 8-solar thermal collector, 9-water compensating valve, 10-first pipeline, 11-hot water activity, 12-Fresh air handling units, 13-return fan, 14-heat reclamation device, 15-fresh wind port, 16-return air inlet, the new air-valve of 17-, 18-air cleaner, 19-preheater, 20-air heat exchanger, 21-reheater, 22-blower fan, 23-first compressor, 24-four-way change-over valve, 25-water-refrigerant heat exchanger, 26-gas-liquid separator, 27-high-pressure reservoir, 28-device for drying and filtering, 29-first throttle valve, 30-second throttle, 31-is thermal valve again, 32-first magnetic valve, 33-second magnetic valve, 34-the 3rd magnetic valve, 35-the 4th magnetic valve, 36-heating pipe magnetic valve, 37-hot gas bypass valve, 38-second pipeline, 39-the 3rd pipeline, 40-water-water heat pump unit, 41-second compressor, 42-electric expansion valve, 43-the 4th plate type heat exchanger, 44-the 5th plate type heat exchanger, 45-first valve, 46-second valve, 47-the 3rd valve, 48-the 4th valve, 49-the 5th valve, 50-the 6th valve, 51-the 7th valve, 52-the 8th valve, 53-first circulating pump, 54-the 9th valve, 55-the tenth valve, 56-second circulating pump, 57-cooling tower, 58-the 3rd circulating pump, 59-the 6th plate type heat exchanger, 60-the 11 valve, 61-the 12 valve, 62-the 13 valve, 63-the 14 valve, 64-underground pipe.
Detailed description of the invention
Embodiment 1:
As depicted in figs. 1 and 2, the water loop heat pump air conditioning system of the cold and heat combined supply of the present embodiment, comprise domestic hot-water's subsystem, new wind subsystem, water-water heat pump Sources and sinks hybrid ring subsystems, thermal sub-system, cooling water subsystem and fan coil 1 disposed in the interior, in the present embodiment, indoor refer in dormitory, and the fan coil 1 of each indoor has two; Wherein:
Described domestic hot-water's subsystem comprises the first plate type heat exchanger 2, second plate type heat exchanger 3, three-plate type heat exchanger 4, heat accumulation water pot 5, rapid heater 6, water pump 7, solar thermal collector 8 and water compensating valve 9, described first plate type heat exchanger 2, second plate type heat exchanger 3, three-plate type heat exchanger 4 are connected successively with heat accumulation water pot 5, described water pump 7 is connected with the first plate type heat exchanger 2 and heat accumulation water pot 5 respectively, and described first plate type heat exchanger 2 is also connected with running water inlet by the first pipeline 10; Described solar thermal collector 8 is connected with the second plate type heat exchanger 3, allows domestic hot-water's subsystem have various heating sources, is also conducive to the winter condition of new wind subsystem and water-water heat pump Sources and sinks hybrid ring subsystems simultaneously; Described water compensating valve 9 is connected with water pump 7;
Described new wind subsystem bears the function that indoor fresh air replenishes the supply, bear simultaneously and/dehumidification is increased to outdoor air, the function of refrigerating/heating, comprise Fresh air handling units 12, return fan 13, heat reclamation device 14, multiple fresh wind port 15 and multiple return air inlet 16, a fresh wind port 15 and a return air inlet 16 are set in same indoor, described Fresh air handling units 12 is connected with fresh wind port 15 by air supply duct, described return fan 13 is connected with return air inlet 16 by return air duct, described heat reclamation device 14 respectively with Fresh air handling units 12, return fan 13, first plate type heat exchanger 2 is connected with three-plate type heat exchanger 4,
Described Fresh air handling units 12 comprises new air-valve 17, air cleaner 18, preheater 19, air heat exchanger 20, reheater 21, blower fan 22, first compressor 23, four-way change-over valve 24, water-refrigerant heat exchanger 25, gas-liquid separator 26, high-pressure reservoir 27, device for drying and filtering 28, first throttle valve 29, second throttle 30, reheating valve 31, first magnetic valve 32, second magnetic valve 33, 3rd magnetic valve 34 and the 4th magnetic valve 35, described new air-valve 17 is leafy new air-valve, described new air-valve 17, air cleaner 18, preheater 19, air heat exchanger 20, reheater 21 is connected successively with blower fan 22, described blower fan 22 is connected with fresh wind port 15 by air supply duct, described water-refrigerant heat exchanger 25 has chilled water and imports and exports, this chilled water is imported and exported and is connected with heat reclamation device 14, because new wind subsystem is born function of drying, therefore the chilled water out temperature (4-7 DEG C) in this Fresh air handling units 12 will lower than the chilled water temperature (9-12 DEG C) in fan coil 1, chilled water is imported and exported and is connected to fan coil 1 water loops by heat reclamation device 14 through the wa-ter-ring circuit of water-water heat pump Sources and sinks hybrid ring subsystems, to realize making full use of of cryogenic freezing water-cooled amount,
When Fresh air handling units 12 cooling, first magnetic valve 32 and the 3rd magnetic valve 34 are closed, second magnetic valve 33 and the 4th magnetic valve 35 are opened, and described first compressor 23, four-way change-over valve 24, reheating valve 31, reheater 21, water-refrigerant heat exchanger 25, the 4th magnetic valve 35, high-pressure reservoir 27, device for drying and filtering 28, second magnetic valve 33, first throttle valve 29, air heat exchanger 20, four-way change-over valve 24, gas-liquid separator 26 are connected successively with the first compressor 23; When Fresh air handling units 12 heat supply, first magnetic valve 32 and the 3rd magnetic valve 34 are opened, second magnetic valve 33 and the 4th magnetic valve 35 are closed, and described first compressor 23, four-way change-over valve 24, air heat exchanger 20, first magnetic valve 32, high-pressure reservoir 27, device for drying and filtering 28, the 3rd magnetic valve 34, second throttle 30, water-refrigerant heat exchanger 25, reheating valve 31, four-way change-over valve 24, gas-liquid separator 26 are connected successively with the first compressor 23.
Described Fresh air handling units 12 can also comprise heating pipe magnetic valve 36 and hot gas bypass valve 37, the pipeline that described first compressor 23 is connected with four-way change-over valve 24 is the second pipeline 38, the pipeline that described first throttle valve 29 is connected with air heat exchanger 20 is the 3rd pipeline 39, one end of described heating pipe magnetic valve 36 is connected with the second pipeline 38, the described other end stating heating pipe magnetic valve 36 is connected with one end of hot gas bypass valve 37, and the other end of described hot gas bypass valve 37 is connected with the 3rd pipeline 39.Hot gas bypass valve 37 as energy adjustment can provide a kind of high temperature liquid refrigerant by high-pressure side to be bypassed to the method for the low-pressure end of system, thus the system that ensures is run under remaining at a given minimum back pressure state, the present embodiment adopts the method being bypassed to the entrance of evaporimeter (air heat exchanger 20).
Described water-water heat pump Sources and sinks hybrid ring subsystems comprises water-water heat pump unit 40, the water-water heat pump unit 40 of the present embodiment has two, each water-water heat pump unit 40 comprises the second compressor 41, electric expansion valve 42, 4th plate type heat exchanger 43, 5th plate type heat exchanger 44, first valve 45, second valve 46, 3rd valve 47, 4th valve 48, 5th valve 49, 6th valve 50, 7th valve 51 and the 8th valve 52, described electric expansion valve 42 can meet the needs changing flow when Summer and winter operating mode switches pipeline, the first circulating pump 53 is provided with between described fan coil 1 and water-water heat pump unit 40, described three-plate type heat exchanger 4 be provided with the 9th valve 54 be connected successively between water-water heat pump unit 40, tenth valve 55 and the second circulating pump 56, described cooling water subsystem and ground thermal sub-system are connected on the wa-ter-ring circuit of water-water heat pump Sources and sinks hybrid ring subsystems, wherein said cooling water subsystem comprises cooling tower 57, the 3rd circulating pump 58, the 6th plate type heat exchanger the 59, the 11 valve the 60 and the 12 valve 61, described cooling tower 57, the 3rd circulating pump 58 and the 6th plate type heat exchanger 59 connect and compose cooling circuit successively, and described 6th plate type heat exchanger 59 is also connected to the two ends of the tenth valve 55 by the 11 valve the 60 and the 12 valve 61, described ground thermal sub-system comprises the 13 valve the 62, the 14 valve 63 and underground pipe 64, and described underground pipe 64 is connected to the two ends of the 9th valve 54 respectively by the 13 valve the 62 and the 14 valve 63,
When water-water heat pump unit 40 runs with refrigeration machine operating mode, described first valve 45, the 4th plate type heat exchanger 43, second valve 46, first circulating pump 53 and fan coil 1 connect and compose chilled water circuit successively; Described 5th plate type heat exchanger 44, the 4th valve 48, three-plate type heat exchanger 4, the 9th valve 54, cooling water subsystem, the second circulating pump 56 and the 3rd valve 47 connect and compose chilled(cooling) water return (CWR) successively, in chilled(cooling) water return (CWR), the 9th valve 54 can be closed, open the 13 valve the 62 and the 14 valve 63, utilize underground pipe 64 to dispel the heat; Described second compressor 41, the 4th plate type heat exchanger 43, electric expansion valve 42 and the 5th plate type heat exchanger 44 connect and compose refrigeration cycle successively;
When water-water heat pump unit 40 runs with heat pump machine operating mode, described 5th valve 49, the 5th plate type heat exchanger 44, the 6th valve 50, first circulating pump 53 and fan coil 1 connect and compose high-temperature-hot-water closed circuit successively; Described 4th plate type heat exchanger 43, the 8th valve 52, three-plate type heat exchanger 4, thermal sub-system, the second circulating pump 56 and the 7th valve 51 connect and compose low-temperature water heating closed circuit successively; Described second compressor 41, the 4th plate type heat exchanger 43, electric expansion valve 42 and the 5th plate type heat exchanger 44 connect and compose successively and heat closed circuit.
According to summer in winter different operating mode, water temperature in the wa-ter-ring circuit of water-water heat pump Sources and sinks hybrid ring subsystems should remain within the scope of 13-35 DEG C, to ensure the stable operation under high efficiency of water-water heat pump unit energy, this subsystem adopts closed circulation system, its cold water carries out sealing and circulating in system, not with atmosphere; In addition, this subsystem is reversed return system, and current are by distance during each end-rings pipeline equipment all identical (or substantially equal), the resistance to water-flow of reversed return system each end loop is comparatively close, be conducive to hydraulic equilibrium, therefore the hydraulic stability of system is good, and assignment of traffic is even.
The water loop heat pump air conditioning system of the cold and heat combined supply of the present embodiment, concrete principle is as follows:
1) at domestic hot-water's subsystem, when ductwork pressure is normal, running water pressure head is directly utilized to carry out hot water supply, after running water enters the first pipeline 10, be stored in heat accumulation water pot 5 after being processed by the first plate type heat exchanger 2, second plate type heat exchanger 3 and three-plate type heat exchanger 4 successively, water in heat accumulation water pot 5 through rapid heater 6 heat after, by hot water activity 11 hot-water supply to user; When ductwork pressure is not enough, running water through water compensating valve 9 is carried by water pump 7 together with the water of heat accumulation water pot 5, get back in heat accumulation water pot 5 after being processed by the first plate type heat exchanger 2, second plate type heat exchanger 3 and three-plate type heat exchanger 4 successively, water in heat accumulation water pot 5 through rapid heater 6 heat after, by hot water activity 11 hot-water supply to user; When hot water supply stops, the water of heat accumulation water pot 5 is carried by water pump 7, gets back in heat accumulation water pot 5, complete the storage of hot water by the first plate type heat exchanger 2, second plate type heat exchanger 3 and three-plate type heat exchanger 4 after being processed successively;
2) at new wind subsystem, outdoor air enters in Fresh air handling units 12 through new air-valve 17, first purify through air cleaner 18, when summer, new wind is sent into indoor after air heat exchanger 20 cools, if when the humidity of outdoor air is very high, then new wind is first through air heat exchanger 20 cool-down dehumidification, utilize blower fan 22 to blow after reaching ventilation state point by reheater 21, send into indoor by fresh wind port 15; Time in the winter time, new wind first through preheater 19 preheating, then enters air heat exchanger 20 and carries out post bake, utilizes blower fan 22 to blow, send into indoor by fresh wind port 15 after reaching ventilation state point; At transition season, outdoor air directly sends into indoor after air cleaner 18 purifies, and Fresh air handling units 12 runs by ventilation operational mode; Room air is gone by return fan 13 extraction by return air inlet 16, transmits the first plate type heat exchanger 2 and carry out UTILIZATION OF VESIDUAL HEAT IN after heat reclamation device 14 carries out waste heat recovery;
In summer, the cold-treating process that supplies of described Fresh air handling units 12 is: reheater 21 and water-refrigerant heat exchanger 25 are condenser, air heat exchanger 20 is evaporimeter, first magnetic valve 32 and the 3rd magnetic valve 34 are closed, second magnetic valve 33 and the 4th magnetic valve 35 are opened, after first 23 pairs, compressor gaseous refrigerant compresses, successively through four-way change-over valve 24, reheating valve 31, reheater 21, water-refrigerant heat exchanger 25, 4th magnetic valve 35, high-pressure reservoir 27, device for drying and filtering 28, second magnetic valve 33, first throttle valve 29 and air heat exchanger 20, enter after gas-liquid separator 26 carries out gas-liquid separation through four-way change-over valve 24 and get back to the first compressor 23, complete process of refrigerastion,
In the winter time, the confession heat treatment process of described Fresh air handling units 12 is: air heat exchanger 20 is condenser, water-refrigerant heat exchanger 25 is evaporimeter, after first 23 pairs, compressor gaseous refrigerant compresses, successively through four-way change-over valve 24, air heat exchanger 20, first magnetic valve 32, high-pressure reservoir 27, device for drying and filtering 28, the 3rd magnetic valve 34, second throttle 30, water-refrigerant heat exchanger 25 and reheating valve 31, enter after gas-liquid separator 26 carries out gas-liquid separation through four-way change-over valve 24 and get back to the first compressor 23, complete heating operations;
3) at water-water heat pump Sources and sinks hybrid ring subsystems, first valve 45, second valve 46 of water-water heat pump unit 40, the 3rd valve 47 and the 4th valve 48 form one group of valve, 5th valve 49 of described water-water heat pump unit 40, the 6th valve 50, the 7th valve 51 and the 8th valve 52 form another group valve, by the closedown of two groups of valves with open switching and heat or cooling condition.
Described water-water heat pump unit 40 is when running with refrigeration machine operating mode summer: the first valve 45, second valve 46, the 3rd valve 47 and the 4th valve 48 are opened, 5th valve 49, the 6th valve 50, the 7th valve 51 and the 8th valve 52 are closed, 4th plate type heat exchanger 43 is evaporimeter, the water of fan coil 1, successively after the first valve 45, the 4th plate type heat exchanger 43, second valve 46 and the first circulating pump 53, reoffers chilled water fan coil pipe 1; 5th plate type heat exchanger 44 is condenser, the water of the 5th plate type heat exchanger 44 is successively through the 4th valve 48 and three-plate type heat exchanger 4, if now the 9th valve 54 is closed, 13 valve the 62 and the 14 valve 63 is opened, then arrive underground pipe 64 through the 13 valve 62, utilize underground pipe 64 to dispel the heat, arrive cooling water subsystem through the 14 valve 63 after heat radiation, dispel the heat while so just achieving ground thermal sub-system and cooling water subsystem; If now the 9th valve 54 is opened, 13 valve the 62 and the 14 valve 63 is closed, then direct through the 9th valve 54 to cooling water subsystem, after the cooling of cooling water subsystem, successively through the second circulating pump 56 and the 3rd valve 47, get back to the 5th plate type heat exchanger 44, the recirculated water of visible stream in wa-ter-ring circuit is the cooling water of unit; In running, described second compressor 41, the 4th plate type heat exchanger 43, electric expansion valve 42 have been connected with the 5th plate type heat exchanger 44 circularly cooling;
When described water-water heat pump unit runs with heating machine operating mode in the winter time: the first valve 45, second valve 46, the 3rd valve 47 and the 4th valve 48 are closed, 5th valve 49, the 6th valve 50, the 7th valve 51 and the 8th valve 52 are opened, cooling water subsystem is closed with economize energy, the water of fan coil 1, successively through the 5th valve 49, the 5th plate type heat exchanger 44, the 6th valve 50 and the first circulating pump 53, reoffers high-temperature-hot-water fan coil pipe 1; The water of described 4th plate type heat exchanger 43, successively through the 8th valve 52 and three-plate type heat exchanger 4, now the 9th valve 54 is closed, 13 valve the 62 and the 14 valve 63 is opened, through the 13 valve 62 to underground pipe 64, underground pipe 64 is utilized to absorb heat (heat absorbing the earth), successively through the 14 valve 63, the tenth valve 55, second circulating pump 56 and the 7th valve 51 after heat absorption, get back to the 4th plate type heat exchanger 43, the recirculated water of visible stream in wa-ter-ring circuit is the low-temperature heat source of unit; In running, the circulation that has been connected with the 5th plate type heat exchanger 44 of described second compressor 41, the 4th plate type heat exchanger 43, electric expansion valve 42 heats.
In sum, present system is that structure is simple, easy to use, waste heat recovery can be utilized, by cooperatively interacting of each subsystem, not only at summer cooling and hot water can be provided, also can heat supply and hot water is provided in the winter time, meet the demand of user.
The above; be only patent preferred embodiment of the present invention; but the protection domain of patent of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the scope disclosed in patent of the present invention; be equal to according to the technical scheme of patent of the present invention and inventive concept thereof and replace or change, all belonged to the protection domain of patent of the present invention.

Claims (8)

1. the water loop heat pump air conditioning system of cold and heat combined supply, is characterized in that: comprise domestic hot-water's subsystem, new wind subsystem, water-water heat pump Sources and sinks hybrid ring subsystems and fan coil disposed in the interior;
Described domestic hot-water's subsystem comprises the first plate type heat exchanger, the second plate type heat exchanger, three-plate type heat exchanger, heat accumulation water pot, rapid heater and water pump, described first plate type heat exchanger, the second plate type heat exchanger, three-plate type heat exchanger are connected successively with heat accumulation water pot, described water pump is connected with the first plate type heat exchanger and heat accumulation water pot respectively, and described first plate type heat exchanger is also connected with running water inlet by the first pipeline;
Described new wind subsystem comprises Fresh air handling units, return fan, heat reclamation device, multiple fresh wind port and multiple return air inlet, a fresh wind port and a return air inlet are set in same indoor, described Fresh air handling units is connected with fresh wind port by air supply duct, described return fan is connected with return air inlet by return air duct, and described heat reclamation device is connected with Fresh air handling units, return fan, the first plate type heat exchanger and three-plate type heat exchanger respectively;
Described water-water heat pump Sources and sinks hybrid ring subsystems comprises water-water heat pump unit, and described water-water heat pump unit is connected with three-plate type heat exchanger and fan coil respectively.
2. the water loop heat pump air conditioning system of cold and heat combined supply according to claim 1, is characterized in that: described Fresh air handling units comprises new air-valve, air cleaner, preheater, air heat exchanger, reheater, blower fan, the first compressor, four-way change-over valve, water-refrigerant heat exchanger, gas-liquid separator, high-pressure reservoir, device for drying and filtering, first throttle valve, second throttle, again thermal valve, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve and the 4th magnetic valve; Described new air-valve, air cleaner, preheater, air heat exchanger, reheater are connected successively with blower fan, described blower fan is connected with fresh wind port by air supply duct, described water-refrigerant heat exchanger has chilled water and imports and exports, and this chilled water is imported and exported and is connected with heat reclamation device; When Fresh air handling units cooling, first magnetic valve and the 3rd closed electromagnetic valve, second magnetic valve and the 4th magnetic valve are opened, and described first compressor, four-way change-over valve, again thermal valve, reheater, water-refrigerant heat exchanger, the 4th magnetic valve, high-pressure reservoir, device for drying and filtering, the second magnetic valve, first throttle valve, air heat exchanger, four-way change-over valve, gas-liquid separator are connected successively with the first compressor; When Fresh air handling units heat supply, first magnetic valve and the 3rd magnetic valve are opened, second magnetic valve and the 4th closed electromagnetic valve, described first compressor, four-way change-over valve, air heat exchanger, the first magnetic valve, high-pressure reservoir, device for drying and filtering, the 3rd magnetic valve, second throttle, water-refrigerant heat exchanger, again thermal valve, four-way change-over valve, gas-liquid separator are connected successively with the first compressor.
3. the water loop heat pump air conditioning system of cold and heat combined supply according to claim 2, it is characterized in that: described Fresh air handling units also comprises heating pipe magnetic valve and hot gas bypass valve, the pipeline that described first compressor is connected with four-way change-over valve is the second pipeline, the pipeline that described first throttle valve is connected with air heat exchanger is the 3rd pipeline, one end of described heating pipe magnetic valve is connected with the second pipeline, one end of the described other end and hot gas bypass valve of stating heating pipe magnetic valve is connected, and the other end of described hot gas bypass valve is connected with the 3rd pipeline.
4. the water loop heat pump air conditioning system of cold and heat combined supply according to claim 1, it is characterized in that: described water-water heat pump unit comprises the second compressor, electric expansion valve, 4th plate type heat exchanger, 5th plate type heat exchanger, first valve, second valve, 3rd valve, 4th valve, 5th valve, 6th valve, 7th valve and the 8th valve, the first circulating pump is provided with between described fan coil and water-water heat pump unit, described three-plate type heat exchanger be provided with the 9th valve be connected successively between water-water heat pump unit, tenth valve and the second circulating pump, when water-water heat pump unit runs with refrigeration machine operating mode, described first valve, the 4th plate type heat exchanger, the second valve, the first circulating pump and fan coil connect and compose chilled water circuit successively, and described second compressor, the 4th plate type heat exchanger, electric expansion valve and the 5th plate type heat exchanger connect and compose refrigeration cycle successively, when water-water heat pump unit runs with heat pump machine operating mode, described 5th valve, the 5th plate type heat exchanger, the 6th valve, the first circulating pump and fan coil connect and compose high-temperature-hot-water closed circuit successively, and described second compressor, the 4th plate type heat exchanger, electric expansion valve and the 5th plate type heat exchanger connect and compose successively and heat closed circuit.
5. the water loop heat pump air conditioning system of cold and heat combined supply according to claim 4, it is characterized in that: described water loop heat pump air conditioning system also comprises cooling water subsystem, described cooling water subsystem comprises cooling tower, the 3rd circulating pump, the 6th plate type heat exchanger, the 11 valve and the 12 valve, described cooling tower, the 3rd circulating pump and the 6th plate type heat exchanger connect and compose cooling circuit successively, and described 6th plate type heat exchanger is also connected to the two ends of the tenth valve by the 11 valve and the 12 valve; When water-water heat pump unit runs with refrigeration machine operating mode, described 5th plate type heat exchanger, the 4th valve, three-plate type heat exchanger, the 9th valve, cooling water subsystem, the second circulating pump and the 3rd valve connect and compose chilled(cooling) water return (CWR) successively.
6. the water loop heat pump air conditioning system of cold and heat combined supply according to claim 5, it is characterized in that: described water loop heat pump air conditioning system also comprises ground thermal sub-system, described ground thermal sub-system comprises the 13 valve, the 14 valve and underground pipe, and described underground pipe is connected to the two ends of the 9th valve respectively by the 13 valve and the 14 valve; When water-water heat pump unit runs with heat pump machine operating mode, described 4th plate type heat exchanger, the 8th valve, three-plate type heat exchanger, thermal sub-system, the second circulating pump and the 7th valve connect and compose low-temperature water heating closed circuit successively.
7. the water loop heat pump air conditioning system of cold and heat combined supply according to claim 1, is characterized in that: described domestic hot-water's subsystem also comprises solar thermal collector, and described solar thermal collector is connected with the second plate type heat exchanger.
8. the water loop heat pump air conditioning system of cold and heat combined supply according to claim 1, is characterized in that: described domestic hot-water's subsystem also comprises water compensating valve, and described water compensating valve is connected with water pump.
CN201420545512.1U 2014-09-22 2014-09-22 The water loop heat pump air conditioning system of cold and heat combined supply Withdrawn - After Issue CN204141780U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104279662A (en) * 2014-09-22 2015-01-14 广东技术师范学院 Cold and heat combined supply water-loop heat pump air conditioning system and realizing method thereof
CN105423618A (en) * 2015-12-08 2016-03-23 广州欧亚制冷设备制造有限公司 Industrial water chilling unit comprehensive energy-saving system and intelligent control method thereof
CN107429948A (en) * 2015-03-19 2017-12-01 三菱电机株式会社 Heat pump
WO2021017630A1 (en) * 2019-07-31 2021-02-04 青岛理工大学 Metro composite energy multifunctional tail end heat pump system and method
CN112484251A (en) * 2020-11-17 2021-03-12 珠海格力电器股份有限公司 Air conditioner outdoor unit water supply temperature control method and device, controller and air conditioner

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104279662A (en) * 2014-09-22 2015-01-14 广东技术师范学院 Cold and heat combined supply water-loop heat pump air conditioning system and realizing method thereof
CN104279662B (en) * 2014-09-22 2017-04-19 广东技术师范学院 Cold and heat combined supply water-loop heat pump air conditioning system and realizing method thereof
CN107429948A (en) * 2015-03-19 2017-12-01 三菱电机株式会社 Heat pump
CN107429948B (en) * 2015-03-19 2019-12-13 三菱电机株式会社 heat pump system
CN105423618A (en) * 2015-12-08 2016-03-23 广州欧亚制冷设备制造有限公司 Industrial water chilling unit comprehensive energy-saving system and intelligent control method thereof
CN105423618B (en) * 2015-12-08 2018-04-17 广东欧亚制冷设备制造有限公司 A kind of industrial water unit comprehensive energy-saving system and its intelligent control method
WO2021017630A1 (en) * 2019-07-31 2021-02-04 青岛理工大学 Metro composite energy multifunctional tail end heat pump system and method
GB2591657A (en) * 2019-07-31 2021-08-04 Univ Qingdao Technology Metro composite energy multifunctional tail end heat pump system and method
CN112484251A (en) * 2020-11-17 2021-03-12 珠海格力电器股份有限公司 Air conditioner outdoor unit water supply temperature control method and device, controller and air conditioner

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