CN106322812B - A kind of water chiller-heater unit - Google Patents

A kind of water chiller-heater unit Download PDF

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Publication number
CN106322812B
CN106322812B CN201610919895.8A CN201610919895A CN106322812B CN 106322812 B CN106322812 B CN 106322812B CN 201610919895 A CN201610919895 A CN 201610919895A CN 106322812 B CN106322812 B CN 106322812B
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water
heat exchanger
hot water
heat
air
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CN106322812A (en
Inventor
李桂强
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B13/00Compression machines, plant or systems with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plant or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2313/00Compression machines, plant, or systems with reversible cycle not otherwise provided for
    • F25B2313/027Compression machines, plant, or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741Compression machines, plant, or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The embodiment of the invention discloses a kind of water chiller-heater units, including refrigeration compressor, hot water side heat exchanger, heat preservation storage water tank, four-way reversing valve, air-side heat exchanger, bidirectional throttling device, domestic hot water side heat exchanger and air-conditioner tail end equipment;The main valve nozzle of the high-pressure exhaust connection four-way reversing valve of refrigeration compressor, and the first solenoid valve of connecting;Another main valve nozzle of four-way reversing valve and the low pressure suction port of refrigeration compressor connect;Two main valve nozzles of residue of four-way reversing valve are separately connected air-side heat exchanger and domestic hot water side heat exchanger, and bidirectional throttling device is in series between air-side heat exchanger and domestic hot water side heat exchanger;It is in parallel with the first solenoid valve after hot water side heat exchanger is connected with second solenoid valve, and heat preservation storage water tank is connected with hot water side heat exchanger;Air-conditioner tail end equipment connects domestic hot water side heat exchanger.The present invention solves the problems, such as that coal heating has pollution and high energy consumption, provides multiple-working mode, realizes and adjusts running frequency according to operating mode, reduces energy consumption.

Description

A kind of water chiller-heater unit
Technical field
The present embodiments relate to heat pump system technology more particularly to a kind of water chiller-heater units.
Background technology
Northern China heating season haze is serious, and most important reason is to carry out heating using coal-fired, and use coal-fired The problem of progress heating, there are pollution environment and high energy consumptions.As government's coal changes implementation and the people's environmental protection meaning of electric policy The raising of knowledge, efficient, energy-saving and environmental protection heat pump systems are gradually widely used to winter heating.
So-called heat pump system, it is exactly a kind of that low temperature heat energy is converted into high temperature heat and is reached for thermal effect using artificial technology The mechanical device of fruit.Heat pump system is by low-temperature heat source (natural air, underground water, river water, seawater, the sewage of such as ambient enviroment) It is middle to absorb compared with low temperature heat energy, it is then converted into higher temperatures thermal energy and discharges to the interior space (or other regions).This device is It can be used as heat supply heating equipment, and can be used as refrigeration cool-down equipment, to achieve the purpose that dual-use.The energy of heat pump unit Conversion is the effect using its compressor, by consuming certain auxiliary energy (such as electric energy), in compressor and heat-exchange system Under the collective effect of the refrigerant of cycle, by being drawn compared with low temperature heat energy in Environmental Heat Source (such as water, air), it is then converted into higher Warm can be discharged into circulatory mediator (such as water, air) to be exported as high temperature heat source.
Inventor has found traditional heat pump system in the implementation of the present invention, and there are following defects:Traditional heat pump system Function of uniting is more single, can not carry out power regulation automatically according to functional requirement.In addition, traditional heat pump system is cut using triple valve Swap-in enters the heating water and domestic water of heat exchanger, it is understood that there may be the problem of two kinds of water composite pollutions, cannot be satisfied heating heat The demand of water and domestic hot-water's different quality.Using coil-pipe water tank, the mode of the preparation of domestic hot-water is carried out in water tank, although It can solve the problems, such as heating hot water and domestic hot-water's composite pollution, still, other than the primary heat exchange in heat exchanger, It also occur that water-water heat exchange, leads to the reduction of the whole efficiency of heat collector or heat pump system in coil-pipe water tank.In addition to this, traditional Heat pump system the preparation of heating hot water and domestic hot-water is realized using heat exchanger, heating hot water and life heat cannot be met The demand of water different temperatures.
Invention content
The present invention provides a kind of water chiller-heater unit, automatically adjusts running frequency according to functional requirement to realize, has reached section Can consumption reduction effect, also achieve the completely isolated of domestic hot-water and heating hot water, reached and met domestic hot-water and heating heat The demand of water different temperatures and cleanliness factor.
An embodiment of the present invention provides a kind of water chiller-heater units, including:Refrigeration compressor, hot water side heat exchanger, heat preservation storage Water tank, at least two solenoid valves, four-way reversing valve, air-side heat exchanger, bidirectional throttling device, domestic hot water side heat exchanger and air-conditioning end End device;
The main valve nozzle of the high-pressure exhaust connection four-way reversing valve of the refrigeration compressor, forms high pressure gas pipeline, It connects in the high pressure gas pipeline the first solenoid valve;
Another main valve nozzle of the four-way reversing valve is connect with the low pressure suction port of the refrigeration compressor, forms low pressure Suction line;
Two main valve nozzles of residue of the four-way reversing valve are separately connected air-side heat exchanger and domestic hot water side heat exchanger, In, it is in series with bidirectional throttling device between the air-side heat exchanger and domestic hot water side heat exchanger;
After the hot water side heat exchanger is connected with second solenoid valve, first electromagnetism with the high-pressure exhaust pipe road Valve is in parallel, and the heat preservation storage water tank is connected with hot water side heat exchanger, forms hot-water heating system, is used to prepare hot water for life;
The air-conditioner tail end equipment connects the domestic hot water side heat exchanger, and the temperature for carrying out the interior space is adjusted.
Further, the hot-water heating system further includes temperature sensor and solenoid valve controller;
The temperature sensor is set in the heat preservation storage water tank, the temperature for acquiring hot water in the heat preservation storage water tank Degrees of data;
The solenoid valve controller is electrically connected with the temperature sensor, the temperature for obtaining the temperature sensor acquisition Degrees of data, when the temperature data is more than setting high temperature threshold value, the first solenoid valve of control is connected, second solenoid valve shutdown, with And when the temperature data is less than setting low temperature threshold, the first electromagnetism valve breakdown is controlled, second solenoid valve is connected.
Further, the hot-water heating system further includes the first water pump, and first water pump is connected on the hot water side heat exchange In device and the pipeline of the heat preservation storage water tank.
Further, the air-conditioner tail end equipment includes one or more in fan coil, grounding heat coil tube, cooling fin Combination.
Further, further include water knockout drum and water collector;
Domestic hot water side heat exchanger second water pump of series connection and water knockout drum, the fan coil is separately connected by water knockout drum The water inlet of water inlet, the water inlet of grounding heat coil tube and cooling fin;
The water collector is separately connected the water outlet of the water outlet of the fan coil, the water outlet of grounding heat coil tube, cooling fin Mouth and the domestic hot water side heat exchanger, after collecting the hot water in the fan coil, grounding heat coil tube and/or cooling fin, output To the domestic hot water side heat exchanger.
Further, it connects in the pipeline that catchments between the water collector and the water inlet pipe mouth of the domestic hot water side heat exchanger water Filter.
Further, the bidirectional throttling device is electric expansion valve.
Further, the hot water side heat exchanger and domestic hot water side heat exchanger are plate heat exchanger.
Further, the refrigeration compressor is DC frequency-changeable compressor;
When domestic hot water side heat exchanger and hot water side heat exchanger are turned on, the running frequency range of the DC frequency-changeable compressor For a~c;
When domestic hot water side heat exchanger is connected, and hot water side heat exchanger turns off, the running frequency model of the DC frequency-changeable compressor It encloses for a~b;Wherein, a ﹤ b ﹤ c.
The high-pressure exhaust of refrigeration compressor by being connected the main valve nozzle of four-way reversing valve, shape by embodiment of the present invention At high pressure gas pipeline, the first solenoid valve of connecting in high pressure gas pipeline;After hot water side heat exchanger is connected with second solenoid valve, It is in parallel with the first solenoid valve of high-pressure exhaust pipe road, and heat preservation storage water tank is connected with hot water side heat exchanger, forms hot-water heating system, It is used to prepare hot water for life;Air-conditioner tail end equipment connects the domestic hot water side heat exchanger, the temperature tune for carrying out the interior space Section meets the different demands that domestic water supplies water with air-conditioning to water temperature and water quality.In addition, combining the using compression-type refrigeration technology One solenoid valve and second solenoid valve turn on and off, and provide refrigeration, heating, the combination of refrigeration hot water and heating hot water combination etc. Multiple-working mode is realized and carries out running frequency adjusting automatically according to operating mode, and the environment caused by solving coal heating is dirty While dye problem, the effect of energy consumption is reduced.
Description of the drawings
Fig. 1 is the structural schematic diagram of water chiller-heater unit provided in an embodiment of the present invention;
Fig. 2 is the operation principle schematic diagram of water chiller-heater unit provided in an embodiment of the present invention;
Fig. 3 is the operation principle schematic diagram of water chiller-heater unit provided in an embodiment of the present invention;
Fig. 4 is the operation principle schematic diagram of water chiller-heater unit provided in an embodiment of the present invention;
Fig. 5 is the operation principle schematic diagram of water chiller-heater unit provided in an embodiment of the present invention.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram of water chiller-heater unit provided in an embodiment of the present invention.The water chiller-heater unit includes:
Refrigeration compressor 101, hot water side heat exchanger 102, heat preservation storage water tank 103, at least two solenoid valves, four-way reversing valve 104, air-side heat exchanger 105, bidirectional throttling device 106, domestic hot water side heat exchanger 107 and air-conditioner tail end equipment 108.
Wherein, the main valve nozzle of the high-pressure exhaust connection four-way reversing valve 104 of refrigeration compressor 101, forms high pressure Air pipe, the first solenoid valve 109 of connecting in the high pressure gas pipeline realize refrigeration by the break-make of the first solenoid valve 109 Whether the high-pressure exhaust of compressor 101 is directly connected to the main valve nozzle of four-way reversing valve 104.
Another main valve nozzle of the four-way reversing valve 104 is connect with the low pressure suction port of the refrigeration compressor 101, shape At low pressure air suction pipeline.
Two main valve nozzles of residue of the four-way reversing valve 104 are separately connected air-side heat exchanger 105 and air-conditioning side is changed Hot device 107, for by the domestic hot water side heat exchanger 107 and air-side heat exchanger 105 be respectively connected to the high pressure gas pipeline and The low pressure air suction pipeline, wherein be in series with bidirectional throttle between the air-side heat exchanger 105 and domestic hot water side heat exchanger 107 Device 106.
Four-way reversing valve 104 connects the high pressure gas pipeline and air-side heat exchanger of refrigeration compressor 101 when not powering on 105, high temperature refrigerant is delivered to air-side heat exchanger 105.Also, connect domestic hot water side heat exchanger 107 and low pressure air suction pipe Low-temperature refrigerant is transmitted back to refrigeration compressor 101, completes process of refrigerastion by road.Four-way reversing valve 104 is connected when powering on The high-pressure exhaust and domestic hot water side heat exchanger 107 of refrigeration compressor 101, domestic hot water side heat exchanger is delivered to by high temperature refrigerant 107.Also, air-side heat exchanger 105 and low pressure air suction pipeline are connected, low-temperature refrigerant is transmitted back to refrigeration compressor 101, Complete heating operations.It powers in no, 104 connected state of four-way reversing valve is different, and the conversion of different working modes may be implemented.Root It is determined according to functional requirement and domestic hot water side heat exchanger 107 is accessed into high pressure gas pipeline or low pressure air suction pipeline.Correspondingly, by air side Heat exchanger 105 accesses low pressure air suction management or high pressure gas pipeline.Illustratively, refrigeration mode is worked in water chiller-heater unit When, air-side heat exchanger 105 is accessed into high pressure gas pipeline, correspondingly, domestic hot water side heat exchanger 107 is accessed into low pressure air suction pipe Road.When water chiller-heater unit works in heating mode, domestic hot water side heat exchanger is accessed into high pressure gas pipeline, correspondingly, by air Side heat exchanger 105 accesses low pressure air suction pipeline.
After the hot water side heat exchanger 102 is connected with second solenoid valve 110, described with the high-pressure exhaust pipe road One solenoid valve 109 is in parallel, and the heat preservation storage water tank 103 is connected with hot water side heat exchanger 102, hot-water heating system is formed, for making Standby hot water for life.
The air-conditioner tail end equipment 108 connects the domestic hot water side heat exchanger 107, the temperature tune for carrying out the interior space Section.
In above-mentioned water chiller-heater unit, by controlling turning on and off for the first solenoid valve 109 and second solenoid valve 110, When may be implemented to need to prepare hot water, by hot water side heat exchanger 102 be linked into refrigeration compressor 101 and four-way reversing valve 104 it Between, refrigeration compressor 101 is with the first Power operation.When that need not prepare hot water, cut-out hot water side heat exchanger 102 is changed with four-way Connection to valve 104, makes refrigeration compressor 101 be directly connected to four-way reversing valve 104, and refrigeration compressor 101 is transported with the second power Row is realized wherein the second power is less than the first power according to operating mode adjust automatically running frequency.
Further, the hot-water heating system further includes temperature sensor and solenoid valve controller.
The temperature sensor is set in the heat preservation storage water tank, the temperature for acquiring hot water in the heat preservation storage water tank Degrees of data;
The solenoid valve controller is electrically connected with the temperature sensor, the temperature for obtaining the temperature sensor acquisition Degrees of data, when the temperature data is more than setting high temperature threshold value, the first solenoid valve 109 of control is connected, and second solenoid valve 110 is closed It is disconnected, and when the temperature data is less than setting low temperature threshold, control the first solenoid valve 109 shutdown, second solenoid valve 110 connects It is logical.Refrigeration compressor 101 adjusts the operation frequency of itself according to the status information of the first solenoid valve 109 and second solenoid valve 110 Rate.According to the use habit of user, user is relatively fixed using the time of domestic hot-water, without using the big of domestic hot-water In part-time, water chiller-heater unit can meet the needs of air-conditioning system, while the running frequency upper limit of refrigeration compressor with all strength Also corresponding to decline, since running frequency declines, the comprehensive energy efficiency that water chiller-heater unit is run under the operating mode for not preparing hot water It gets a promotion.
Further, the hot-water heating system further includes the first water pump 111, and first water pump 111 is connected on the hot water In side heat exchanger 102 and the pipeline of the heat preservation storage water tank 103.
Domestic water carries out heat exchange in hot water side heat exchanger 102 with high temperature refrigerant, realizes to domestic water The problem of heating is a heat exchange, and avoiding the secondary heat exchange of coil-pipe water tank causes whole efficiency to reduce.First water pump 111 Power is provided, hot water is pumped into heat preservation storage water tank 103.
Heat preservation storage water tank 103 is for storing hot water and being kept the temperature to it, when the water temperature of heat preservation storage water tank 103 reaches setting value When, hot water side heat exchanger 102 is cut off by solenoid valve controller control second solenoid valve 110, is no longer carried out hot water and is produced;When When the water temperature of heat preservation storage water tank 103 is less than setting value, hot water side heat exchanger 102 controls second solenoid valve by solenoid valve controller 110 open it, and carry out hot water and produce.
The hot-water heating system can also include hand valve 120, be connected in the pipeline of heat preservation storage water tank 103, be protected for switching Warm water tank 103.
Further, the air-conditioner tail end equipment 108 includes in fan coil 112, grounding heat coil tube 113, cooling fin 114 One or more combinations.
Further, above-mentioned water chiller-heater unit further includes water knockout drum 115 and water collector 116.
The second water pump 117 of series connection of the domestic hot water side heat exchanger 107 and water knockout drum 115, institute is separately connected by water knockout drum 115 State the water inlet of the water inlet of fan coil 112, the water inlet and cooling fin 114 of grounding heat coil tube 113.
The water collector 116 is separately connected the water outlet of the fan coil 112, the water outlet of grounding heat coil tube 113, heat dissipation The water outlet of piece 114 and the domestic hot water side heat exchanger 107, for collecting the fan coil 112, grounding heat coil tube 113 and/or dissipating After hot water in backing 114, output to the domestic hot water side heat exchanger 107.
Further, in the pipeline that catchments between the water collector 116 and the water inlet pipe mouth of the domestic hot water side heat exchanger 107 Series connection water filter 118, realizes and is filtered to the water for entering domestic hot water side heat exchanger 107, filters out the outflow of air-conditioner tail end equipment 108 Water in the pollutants such as the dirt that may carry or anvil cinder, avoid the pipeline of pollution domestic hot water side heat exchanger 107.
Wherein, the bidirectional throttling device 106 is electric expansion valve.
Wherein, the hot water side heat exchanger 102 and domestic hot water side heat exchanger 107 are plate heat exchanger.
Wherein, the refrigeration compressor 101 is DC frequency-changeable compressor.
When domestic hot water side heat exchanger 107 and hot water side heat exchanger 102 are turned on, the operation frequency of the DC frequency-changeable compressor Rate ranging from a~c;
When domestic hot water side heat exchanger 107 is connected, and hot water side heat exchanger 102 turns off, the operation of the DC frequency-changeable compressor Frequency range is a~b;Wherein, a ﹤ b ﹤ c.
The variation of running frequency may be implemented in DC frequency-changeable compressor, and the frequency range of operation is by hot-water heating system and air-conditioning system The service condition of system determines that the upper limit of the frequency range of its operation is relatively used alone when hot-water heating system and air-conditioning system use simultaneously It is high when air-conditioning system.The adjusting of situation progress upper frequency limit can achieve the effect that reduce energy consumption according to demand.DC frequency-changing pressure Contracting machine can also be replaced using multiple invariable frequency compressors.
In above-mentioned water chiller-heater unit, refrigeration compressor 101, hot water side heat exchanger 102, first the 109, second electricity of solenoid valve Magnet valve 110, four-way reversing valve 104, air-side heat exchanger 105, domestic hot water side heat exchanger 107, bidirectional throttling device 106 and gas-liquid point Fluorine system system is collectively formed from device 119, realizes that cold (heat) amount between outside air and refrigerant is transmitted.Wherein, gas-liquid separator 119 are connected in the low pressure air suction pipeline of refrigeration compressor 101.Gaseous refrigerant and liquid of the gas-liquid separator 119 to inflow Refrigerant is detached, and it is gaseous state that guarantee, which flow to the refrigerant of refrigeration compressor 101, ensure that pressure of freezing in water chiller-heater unit The safety and stability that contracting machine 101 works.
Domestic hot water side heat exchanger 107, the second water pump 117, water knockout drum 115, air-conditioner tail end equipment 108, water collector 116 and water mistake Filter 118 collectively forms air-conditioning system, provides cold (heat) water needed for air conditioning, and air-conditioner tail end equipment 108 can be used as cold The bridge of (heat) water and air heat exchange.
Since hot-water heating system includes hot water side heat exchanger 102, heat preservation storage water tank 103 and the first water pump 111.Hot-water heating system and Different heat exchangers is respectively adopted in air-conditioning system, and hot-water heating system is located at 104 front end of four-way reversing valve of fluorine system system, air-conditioning system System is located at 104 rear end of four-way reversing valve of fluorine system system, and it is completely isolated to realize that domestic hot-water supplies water with air-conditioning, meets domestic hot-water The different quality demand to supply water with air-conditioning.
The detailed process of the system operation of water chiller-heater unit is as follows:
As shown in Fig. 2, wherein embodying the flow direction of refrigerant with arrow.Under refrigeration work pattern, the first solenoid valve 109 is beaten It opens, second solenoid valve 110 is closed, and four-way reversing valve 104 does not power on, and high-pressure exhaust and the air side of refrigeration compressor 101 are changed Hot device 105 is connected, and the low pressure suction port of refrigeration compressor 101 is connected with domestic hot water side heat exchanger 107.It is pressed from refrigeration compressor 101 The high temperature liquid refrigerant of contracting out is commutated by four-way reversing valve 104, into air-side heat exchanger 105.By being forced to pass through The air of air-side heat exchanger 105 carries out condensing heat-exchange, and high temperature liquid refrigerant is condensed into low temperature liquid refrigerant outflow air After side heat exchanger 105, throttle by bidirectional throttling device 106, into domestic hot water side heat exchanger 107.Low temperature liquid refrigerant with The medium water heat exchange in domestic hot water side heat exchanger 107 is flowed through, liquid refrigerant is converted into gaseous refrigerant, medium due to evaporation Water heat release cools down.If gaseous refrigerant heat is higher than medium water heat, heat occurs between gaseous refrigerant and medium water again Amount exchange, finally obtain with the comparable cryogenic media water of the heat of refrigerant, cryogenic media water is transported to air-conditioner tail end equipment 108 achieve the purpose that refrigeration.After gaseous state and the refrigerant outflow domestic hot water side heat exchanger 107 of liquid mixing, gas-liquid separator is flowed into 119, the liquid refrigerant mixed in gaseous refrigerant is removed, gaseous refrigerant flows out gas-liquid separator 119, flows into refrigerant compression Machine 101, refrigeration compressor 101 compress it into high temperature liquid refrigerant, continue cycling through aforesaid operations.
As shown in figure 3, wherein embodying the flow direction of refrigerant with arrow.In the case where heating operating mode, the first solenoid valve 109 is beaten It opens, second solenoid valve 110 is closed, and four-way reversing valve 104 powers on, and high-pressure exhaust and the air-conditioning side of refrigeration compressor 101 exchange heat Device 107 is connected, and the low pressure suction port of refrigeration compressor 101 is connected with air-side heat exchanger 105.It is compressed from refrigeration compressor 101 High temperature liquid refrigerant out is commutated by four-way reversing valve 104, and into domestic hot water side heat exchanger 107, heat is carried out with medium water After amount exchanges, gaseous refrigerant is converted into liquid refrigerant, medium water heat absorption heating, if liquid refrigerant due to condensation Heat is less than medium water heat, then heat exchange occurs between liquid refrigerant and medium water again, finally obtains and refrigerant The comparable high-temperature medium water of heat, high-temperature medium water is transported to air-conditioner tail end equipment 108 and achievees the purpose that heating.Gaseous state and After the refrigerant outflow domestic hot water side heat exchanger 107 of liquid mixing, throttles by bidirectional throttling device 106, exchange heat into air side In device 105, liquid refrigerant is evaporated to gaseous refrigerant, gaseous refrigerant outflow by air-side heat exchanger 105 as evaporator Air-side heat exchanger 105 flows into gas-liquid separator 119, removes liquid refrigerant that may be present in gaseous refrigerant, gaseous state system Cryogen flows out gas-liquid separator 119, flows into refrigeration compressor 101, and refrigeration compressor 101 compresses it into the gaseous state of high temperature and pressure Refrigerant continues cycling through aforesaid operations.
As shown in figure 4, wherein embodying the flow direction of refrigerant with arrow.In refrigeration+hot water (combination of refrigeration hot water) Working mould Under formula, the first solenoid valve 109 is closed, and second solenoid valve 110 is opened, and four-way reversing valve 104 does not power on, refrigeration compressor 101 High-pressure exhaust is connected with hot water side heat exchanger 102, low pressure suction port and 107 phase of domestic hot water side heat exchanger of refrigeration compressor 101 Even.Enter hot water side heat exchanger 102 from the high temperature liquid refrigerant of the compression of refrigeration compressor 101 out, with hot water side heat exchanger Medium water in 102 exchanges heat, and the raising of medium coolant-temperature gage achievees the purpose that water heating.The hot water prepared is in the first water pump Under the action of 111, flows into heat preservation storage water tank 103 and store.In the heat exchanging process of gaseous refrigerant and hot water side heat exchanger 102 In, there may be part gaseous refrigerant exothermic condensation at liquid refrigerant.In turn, the refrigerant of gas-liquid two-phase mixing flows out hot water Side heat exchanger 102 is commutated by four-way reversing valve 104, into air-side heat exchanger 105, by being forced to pass through air side heat exchange The air of device 105 carries out condensing heat-exchange, and high temperature liquid refrigerant exothermic condensation is changed at outflow air side after low temperature liquid refrigerant Hot device 105 throttles by bidirectional throttling device 106, into domestic hot water side heat exchanger 107, low temperature liquid refrigerant and flows through sky The medium water heat exchange in side heat exchanger 107, liquid refrigerant is adjusted to be converted into gaseous refrigerant, medium water heat release due to evaporation Cooling.If gaseous refrigerant heat is higher than medium water heat, heat exchange occurs between gaseous refrigerant and medium water again, Finally obtain with the comparable cryogenic media water of the heat of refrigerant, cryogenic media water is transported to air-conditioner tail end equipment 108 and is reached The purpose of refrigeration.After gaseous state and the refrigerant outflow domestic hot water side heat exchanger 107 of liquid mixing, by gas-liquid separator 119, removal Liquid refrigerant in gaseous refrigerant, gaseous refrigerant flow out gas-liquid separator 119, flow into refrigeration compressor 101, refrigeration pressure Contracting machine 101 compresses it into high temperature liquid refrigerant, continues cycling through aforesaid operations, achievees the purpose that freeze and prepare hot water.
As shown in figure 5, wherein embodying the flow direction of refrigerant with arrow.In heating+hot water (combination of heating hot water) Working mould Under formula, the first solenoid valve 109 is opened, and second solenoid valve 110 is closed, and four-way reversing valve 104 powers on, the height of refrigeration compressor 101 Pressure gas port is connected with hot water side heat exchanger 102, and the low pressure suction port of refrigeration compressor 101 is connected with air-side heat exchanger 105. Enter hot water side heat exchanger 102 from the high temperature liquid refrigerant of the compression of refrigeration compressor 101 out, with hot water side heat exchanger 102 In medium water exchange heat, medium coolant-temperature gage raising achievees the purpose that water heating.The hot water prepared is in the first water pump 111 Under effect, flows into heat preservation storage water tank 103 and store.It, may in the heat exchanging process of gaseous refrigerant and hot water side heat exchanger 102 There is part gaseous refrigerant exothermic condensation at liquid refrigerant.In turn, the refrigerant outflow hot water side heat exchange of gas-liquid two-phase mixing Device 102 is commutated by four-way reversing valve 104, into domestic hot water side heat exchanger 107, after carrying out condensing heat-exchange with medium water, gaseous state Refrigerant is converted into liquid refrigerant, medium water heat absorption heating, if liquid refrigerant heat is less than medium water due to condensation Heat exchange then occurs between liquid refrigerant and medium water again for heat, finally obtains and the comparable height of the heat of refrigerant High-temperature medium water is transported to air-conditioner tail end equipment 108 and achievees the purpose that heating by warm medium water.The refrigeration of gaseous state and liquid mixing After domestic hot water side heat exchanger 107 is flowed out in agent, throttle by bidirectional throttling device 106, into air-side heat exchanger 105, air side Liquid refrigerant is evaporated to gaseous refrigerant by heat exchanger 105 as evaporator, and gaseous refrigerant flows out air-side heat exchanger 105, gas-liquid separator 119 is flowed into, liquid refrigerant that may be present in gaseous refrigerant is removed, gaseous refrigerant flows out gas-liquid Separator 119 flows into refrigeration compressor 101, and refrigeration compressor 101 compresses it into the gaseous refrigerant of high temperature and pressure, continues Aforesaid operations are recycled, achieve the purpose that heat and prepare hot water.
The high-pressure exhaust of refrigeration compressor by being connected the main valve nozzle of four-way reversing valve, shape by embodiment of the present invention At high pressure gas pipeline, the first solenoid valve of connecting in high pressure gas pipeline;After hot water side heat exchanger is connected with second solenoid valve, It is in parallel with the first solenoid valve of high-pressure exhaust pipe road, and heat preservation storage water tank is connected with hot water side heat exchanger, forms hot-water heating system, It is used to prepare hot water for life;Air-conditioner tail end equipment connects the domestic hot water side heat exchanger, the temperature tune for carrying out the interior space Section meets the different demands that domestic water supplies water with air-conditioning to water temperature and water quality.In addition, combining the using compression-type refrigeration technology One solenoid valve and second solenoid valve turn on and off, and provide refrigeration, heating, the combination of refrigeration hot water and heating hot water combination etc. Multiple-working mode is realized and carries out running frequency adjusting automatically according to operating mode, and the environment caused by solving coal heating is dirty While dye problem, the effect of energy consumption is reduced.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation, It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out to the present invention by above example It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also May include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.

Claims (8)

1. a kind of water chiller-heater unit, which is characterized in that including:Refrigeration compressor, hot water side heat exchanger, heat preservation storage water tank, at least Two solenoid valves, four-way reversing valve, air-side heat exchanger, bidirectional throttling device, domestic hot water side heat exchanger and air-conditioner tail end equipment;
The main valve nozzle of the high-pressure exhaust connection four-way reversing valve of the refrigeration compressor, forms high pressure gas pipeline, in institute State the first solenoid valve of connecting in high pressure gas pipeline;
Another main valve nozzle of the four-way reversing valve is connect with the low pressure suction port of the refrigeration compressor, forms low pressure air suction Pipeline;
Two main valve nozzles of residue of the four-way reversing valve are separately connected air-side heat exchanger and domestic hot water side heat exchanger, wherein It is in series with bidirectional throttling device between the air-side heat exchanger and domestic hot water side heat exchanger;
After the hot water side heat exchanger is connected with second solenoid valve, simultaneously with first solenoid valve of the high-pressure exhaust pipe road Connection, and the heat preservation storage water tank is connected with hot water side heat exchanger, is formed hot-water heating system, is used to prepare hot water for life;
The air-conditioner tail end equipment connects the domestic hot water side heat exchanger, and the temperature for carrying out the interior space is adjusted;
The hot-water heating system further includes temperature sensor and solenoid valve controller;
The temperature sensor is set in the heat preservation storage water tank, the temperature number for acquiring hot water in the heat preservation storage water tank According to;
The solenoid valve controller is electrically connected with the temperature sensor, the temperature number for obtaining the temperature sensor acquisition According to when the temperature data is more than setting high temperature threshold value, the first solenoid valve of control is connected, second solenoid valve shutdown, Yi Ji When the temperature data is less than setting low temperature threshold, the first electromagnetism valve breakdown is controlled, second solenoid valve is connected;
The refrigeration compressor adjusts the running frequency of itself according to the status information of the first solenoid valve and second solenoid valve.
2. water chiller-heater unit according to claim 1, which is characterized in that the hot-water heating system further includes the first water pump, institute The first water pump is stated to be connected in the hot water side heat exchanger and the pipeline of the heat preservation storage water tank.
3. water chiller-heater unit according to claim 1, which is characterized in that the air-conditioner tail end equipment include fan coil, One or more combinations in grounding heat coil tube, cooling fin.
4. water chiller-heater unit according to claim 3, which is characterized in that further include water knockout drum and water collector;
Domestic hot water side heat exchanger second water pump of series connection and water knockout drum, the water inlet of the fan coil is separately connected by water knockout drum The water inlet of mouth, the water inlet of grounding heat coil tube and cooling fin;
The water collector be separately connected the water outlet of the fan coil, the water outlet of grounding heat coil tube, cooling fin water outlet and The domestic hot water side heat exchanger, after collecting the hot water in the fan coil, grounding heat coil tube and/or cooling fin, output to institute State domestic hot water side heat exchanger.
5. water chiller-heater unit according to claim 4, which is characterized in that the water collector and the domestic hot water side heat exchanger It connects in the pipeline that catchments between water inlet pipe mouth water filter.
6. water chiller-heater unit according to claim 1, which is characterized in that the bidirectional throttling device is electric expansion valve.
7. water chiller-heater unit according to claim 1, which is characterized in that the hot water side heat exchanger and domestic hot water side heat exchanger For plate heat exchanger.
8. water chiller-heater unit according to claim 1, which is characterized in that the refrigeration compressor compresses for DC frequency-changing Machine;
When domestic hot water side heat exchanger and hot water side heat exchanger are turned on, the running frequency ranging from a of the DC frequency-changeable compressor ~c;
When domestic hot water side heat exchanger is connected, and hot water side heat exchanger turns off, the running frequency ranging from a of the DC frequency-changeable compressor ~b;Wherein, a ﹤ b ﹤ c.
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107339833A (en) * 2017-05-27 2017-11-10 珠海格力电器股份有限公司 A kind of multifuctional air conditioning system and its control method
CN108167975A (en) * 2017-12-07 2018-06-15 新奥泛能网络科技股份有限公司 Heat pump cold-hot combined supply system
CN109489153B (en) * 2018-10-11 2020-05-22 珠海格力电器股份有限公司 Heating sharing method and system
CN109708334A (en) * 2018-12-24 2019-05-03 武汉科技大学 Based on hairdressing place's source of sewage and air source heat pump trilogy supply composite system
CN109751787A (en) * 2019-03-01 2019-05-14 南京天加环境科技有限公司 A kind of control method of air-conditioning ground heating one unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2906428Y (en) * 2006-05-10 2007-05-30 珠海格力电器股份有限公司 Hot water coupling system for separated domestic air conditioner
CN201072200Y (en) * 2007-07-26 2008-06-11 广东格兰仕集团有限公司 Energy-saving air conditioning water heater
CN102997499A (en) * 2012-12-28 2013-03-27 东南大学 Air source heat pump device capable of producing cold water and hot mater at same time
CN206207779U (en) * 2016-10-21 2017-05-31 珠海格力电器股份有限公司 A kind of water chiller-heater unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102519172B (en) * 2011-12-31 2013-10-16 广东欧科空调制冷有限公司 Water source and ground source quadruple combined supply air conditioning unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2906428Y (en) * 2006-05-10 2007-05-30 珠海格力电器股份有限公司 Hot water coupling system for separated domestic air conditioner
CN201072200Y (en) * 2007-07-26 2008-06-11 广东格兰仕集团有限公司 Energy-saving air conditioning water heater
CN102997499A (en) * 2012-12-28 2013-03-27 东南大学 Air source heat pump device capable of producing cold water and hot mater at same time
CN206207779U (en) * 2016-10-21 2017-05-31 珠海格力电器股份有限公司 A kind of water chiller-heater unit

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