CN105020936B - Air-conditioner heat pump hot-water system - Google Patents

Air-conditioner heat pump hot-water system Download PDF

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Publication number
CN105020936B
CN105020936B CN201410155558.7A CN201410155558A CN105020936B CN 105020936 B CN105020936 B CN 105020936B CN 201410155558 A CN201410155558 A CN 201410155558A CN 105020936 B CN105020936 B CN 105020936B
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CN
China
Prior art keywords
valve
air
valve member
heat
compressor
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Application number
CN201410155558.7A
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Chinese (zh)
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CN105020936A (en
Inventor
吴静龙
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Guangdong TCL Intelligent HVAC Equipment Co Ltd
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TCL Air Conditioner Zhongshan Co Ltd
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Priority to CN201410155558.7A priority Critical patent/CN105020936B/en
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Classifications

    • 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
    • F25B29/00Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0096Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater combined with domestic apparatus
    • 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, plants 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
    • 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
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants 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, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02742Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two four-way valves

Abstract

The invention discloses a kind of air-conditioner heat pump hot-water system, including compressor, first four-way valve, second four-way valve, First Heat Exchanger, second heat exchanger, heat-exchange device, first throttle element, first valve member, second valve member, 3rd valve member, 4th valve member and the 5th valve member, wherein, heat-exchange device is provided with first end, second end, 3rd end and the 4th end, the water stream channel between refrigerant passage and the 3rd end of the heat-exchange device and the 4th end between the first end of the heat-exchange device and the second end is separate, the current in refrigerant and hot water channel in refrigerant passage carry out heat exchange in heat-exchange device.This air-conditioner heat pump hot-water system, water heating is separated with refrigerating function, so as to be user-friendly.

Description

Air-conditioner heat pump hot-water system
Technical field
The present invention relates to household electrical appliance technical field, more particularly to a kind of air-conditioner heat pump hot-water system.
Background technology
Currently, most air conditioner only has cooling in summer, winter and heats to adjust the simple function of indoor air temperature. Wherein, during air conditioner summer when running heating mode, its generation heat that exchanges heat on heat exchangers is discharged into outside atmosphere, Cause the waste of the energy.In addition, air conditioner is only in summer and use in winter, the utilization rate of air conditioner is not high.In addition, there is air conditioner Homes and offices also need to buy water heater to meet demand of domestic water in addition.
At the same time, heat pump techniques as a kind of high-effect and green technology just play in household electrical appliances energy-conservation one it is more next More important role.
Now, air-conditioner heat pump hot-water systematic difference is gradually attracted attention, existing heat reclamation type system, is led to It is often that water is heated using the condensation heat of heat exchanger in kind of refrigeration cycle, to meet the hot water demand of user.But, it is this Multi-functional air conditioner heat pump hot-water system refrigerating capacity and water heating are mutually restricted, that is, while having to freeze to room air, Water can be heated, can not isolated operation heating aqueous mode, it is therefore, very inconvenient when user uses.
The above is only used for auxiliary and understands technical scheme, does not represent and recognizes that the above is existing skill Art.
The content of the invention
It is a primary object of the present invention to provide a kind of air-conditioner heat pump hot-water system, it is intended to make air-conditioner heat pump hot-water system Refrigeration is separated with water heating function.
To achieve the above object, the present invention provides a kind of air-conditioner heat pump hot-water system, including compressor, the first four-way valve, Second four-way valve, First Heat Exchanger, the second heat exchanger, heat-exchange device, first throttle element, the first valve member, the second valve Door component, the 3rd valve member, the 4th valve member and the 5th valve member, wherein, the heat-exchange device is provided with first End, the second end, the 3rd end and the 4th end, refrigerant passage and the heat between the first end of the heat-exchange device and the second end Water stream channel between 3rd end of switch and the 4th end is separate, the refrigerant in the refrigerant passage and the hot water Current in passage carry out heat exchange in the heat-exchange device;
The blast pipe of the compressor is connected with the first end of first four-way valve, air inlet pipe and second port valve Three-terminal link;Second end of first four-way valve is successively through second heat exchanger, the 5th valve member and described first The first end connection of restricting element, the 3rd end of first four-way valve and the three-terminal link of second four-way valve and and The air inlet pipe connection of compressor, the 4th end of first four-way valve is connected with the first end of second four-way valve;Described Second end of two four-way valves is connected with the first end of the heat-exchange device, and the 4th end of second four-way valve is successively through described First Heat Exchanger, the 4th valve member are connected with the first end of first throttle element;Second end of the heat-exchange device is through institute The second end that the first valve member is stated with the first throttle element is connected;One end of second valve member and described first Valve member connect and be connected with the second end of the first throttle element, the other end be connected with the First Heat Exchanger and with The 4th valve member connection;One end of 3rd valve member is connected and and first segment with first valve member The second end connection of fluid element, the other end is connected with second heat exchanger and is connected with the 5th valve member.
Preferably, the air-conditioner heat pump hot-water system also includes being located at first valve member and first throttle member Device for drying and filtering between part.
Preferably, the air-conditioner heat pump hot-water system also includes being located at first valve member and the device for drying and filtering Between high-pressure reservoir.
Preferably, the air-conditioner heat pump hot-water system also includes the hydrojet cooling for being used to reduce the compressor exhaust temperature Device, the hydrojet heat sink includes the first magnetic valve and the second restricting element being arranged in series, the steam spray of the compressor Pipe is penetrated to be connected with the first throttle element through first magnetic valve, the second restricting element successively.
Preferably, the air-conditioner heat pump hot-water system also includes being used for the defrosting switch dress that defrosting is opened in water heating Put, the defrosting switching device includes the first check valve, the second magnetic valve and the 3rd restricting element being arranged in series, the heat is handed over Second end of changing device is successively through first check valve, the second magnetic valve, the 3rd restricting element and the first throttle element The second end connection.
Preferably, the first throttle element is electric expansion valve, and second restricting element and the 3rd restricting element are equal For capillary.
Preferably, the air-conditioner heat pump hot-water system also include gas-liquid separator, one end of the gas-liquid separator with it is described The air inlet pipe connection of compressor, the three-terminal link of the other end and first four-way valve.
Preferably, the air-conditioner heat pump hot-water system also includes being installed on the first thermometric at the blast pipe of the compressor Device, when the temperature that first temperature measuring equipment is measured is more than preset temperature value, the hydrojet heat sink is opened.
Preferably, the air-conditioner heat pump hot-water system also includes being used to cut off institute when the compressor return air hypotony The low-voltage protective switch of compressor power is stated, the low-voltage protective switch is installed at the air inlet pipe of the compressor.
Preferably, the air-conditioner heat pump hot-water system also includes being used to cut off institute when the Compressor Discharge Pressure is too high The high voltage protective switch of compressor power is stated, high voltage protective switch is installed at the blast pipe of the compressor.
Air-conditioner heat pump hot-water system proposed by the present invention, can isolated operation system when to interior without heating or freezing Hot-water mode so that water heating is separated with refrigerating function, is user-friendly.User can be used alone this air-conditioner heat pump hot-water The water heating function of system, and without opening air conditioner refrigerating function.
Brief description of the drawings
Fig. 1 is the structural representation of air-conditioner heat pump hot-water System Preferred embodiments of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Reference picture 1, Fig. 1 is the structural representation of air-conditioner heat pump hot-water System Preferred embodiments of the present invention.
In this preferred embodiment, air-conditioner heat pump hot-water system, including compressor 10, the first four-way valve 21, the second four-way valve 22nd, First Heat Exchanger 31, the second heat exchanger 32, heat-exchange device 33, first throttle element 41, the first valve member 51, second Valve member 52, the 3rd valve member 53, the 4th valve member 54 and the 5th valve member 55, wherein, heat-exchange device 33 Provided with first end 33a, the second end 33b, the 3rd end 33c and the 4th end 33d, the first end 33a of heat-exchange device 33 and the second end The water stream channel between refrigerant passage and the 3rd end 33c of heat-exchange device 33 and the 4th end 33d between 33b is separate, The current in refrigerant and hot water channel in refrigerant passage carry out heat exchange in heat-exchange device 33;
The blast pipe 10a of compressor 10 is connected with the first end of the first four-way valve 21, air inlet pipe 10b and the second port valve 22 Three-terminal link;Second end of the first four-way valve 21 is successively through the second heat exchanger 32, the 5th valve member 55 and first throttle member The first end connection of part 41, the 3rd end of the first four-way valve 21 and the three-terminal link of the second four-way valve 22 and with and compressor 10 air inlet pipe 10b connections, the 4th end of the first four-way valve 21 is connected with the first end of the second four-way valve 22;Second four-way valve 22 The second end be connected with the first end 33a of heat-exchange device 33, the 4th end of the second four-way valve 22 successively through First Heat Exchanger 31, 4th valve member 54 is connected with the first end of first throttle element 41;Second end 33b of heat-exchange device 33 is through the first valve Component 51 is connected with the second end of first throttle element 41;One end of second valve member 52 is connected with the first valve member 51, And be connected with the second end of first throttle element 41, the other end is connected with First Heat Exchanger 31 and connected with the 4th valve member 54 Connect;One end of 3rd valve member 53 is connected with the first valve member 51 and is connected with the second end of first throttle element 41, separately One end is connected with the second heat exchanger 32 and is connected with the 5th valve member 55.
Specifically, in the present embodiment, preferably the first valve member 51 is a check valve, and its conducting direction is heat-exchange device 33 the second end to the second end of first throttle element 41;Second valve member 52 is a check valve, and its conducting direction is first The valve member of heat exchanger 31 to the first 51;3rd valve member 53 be a check valve, its conducting direction be the second heat exchanger 32 to First valve member 51;The check valve of 4th valve member 54 1 adds a magnetic valve, and the conducting direction of its check valve is first throttle Element 41 is to First Heat Exchanger 31;5th valve member 55 is that a check valve adds a magnetic valve, and the conducting direction of its check valve is The heat exchanger 32 of first throttle element 41 to the second.
In the present embodiment, the second heat exchanger 32 is water cooling type heat exchanger, more specifically, is the dry type heat exchange in water-cooling type Device.Certainly, in other variant embodiments, the second heat exchanger 32 can also be air-cooled type heat exchanger, and the present invention is not limited this It is fixed.In the present embodiment, First Heat Exchanger 31 is air-cooled type heat exchanger, wherein, the second heat exchanger 32 is installed on interior, for room Interior environment is freezed or heated, and First Heat Exchanger 31 is installed on outdoor.It should be noted that refrigerant First Heat Exchanger 31, When the second heat exchanger 32 and the condensation of heat-exchange device 33, First Heat Exchanger 31, the second heat exchanger 32 and heat-exchange device 33 The condenser as subsequently mentioned;Refrigerant is in evaporation, and First Heat Exchanger 31, the second heat exchanger 32 and heat-exchange device 33 are For the evaporator subsequently mentioned.
In the present embodiment, the first end of the first four-way valve 21 is managed for its D, and the second end is managed for its E, and the 3rd end is managed for its S, the Managed for its C at four ends.When first four-way valve 21 is powered off, its second end is connected with the 3rd end, first end is connected with the 4th end, When upper electric, the 3rd end of first four-way valve 21 is connected with the 4th end, first end is connected with the second end.Second four-way valve 22 First end is managed for its D, and the second end is managed for its C, and the 3rd end is managed for its S, and the 4th end is managed for its E.When second four-way valve 22 is disconnected When electric, its 3rd end is connected with the 4th end, first end is connected with the second end, when upper electric, the 3rd end of second four-way valve 22 Connected with the second end, first end is connected with the 4th end.
This air-conditioner heat pump hot-water system can run multiple-working mode, described further below.
The first is air-conditioner heat pump hot-water system operation list refrigeration mode.
Now, the second valve member 52 and the 5th valve member 55 are opened(Valve member opens the pipe for referring to and controlling where it Road is opened, and refrigerant is flowed through the pipeline where it), the first valve member 51, the 3rd valve member 53 and the 4th valve member 54 are turned off(Valve member closes the pipeline cut-out for referring to control where it, prevents refrigerant from flowing through the pipeline where it), first Four-way valve 21 is powered off, electric on the second four-way valve 22.Refrigerant flow is as follows:The HTHP of the blast pipe 10a discharges of compressor 10 Gaseous coolant successively through the first four-way valve 21, the second four-way valve 22 flow into First Heat Exchanger 31 in, in First Heat Exchanger 31 Refrigerant is condensed, and is converted into the liquid refrigerants of HTHP, throttling expansion effect conversion of the liquid refrigerants through first throttle element 41 For the liquid refrigerants of low-temp low-pressure, the liquid refrigerants of low-temp low-pressure flows into the second heat exchanger 32 through the 5th valve member 55, the The gaseous coolant of low-temp low-pressure is converted into two heat exchangers 32, finally, the air inlet pipe 10b through compressor 10 enters compressor 10 In.Now, the water in the second heat exchanger 32 in water pipe absorbs the cold produced during refrigerant gasification, with to indoor refrigeration.
Second is air-conditioner heat pump hot-water system operation list heating mode.
Now, the 3rd valve member 53 and the 4th valve member 54 are opened, the first valve member 51, the second valve member 52 It is turned off with the 5th valve member 55, electric on the first four-way valve 21, the second four-way valve 22 is powered off.Refrigerant flow is as follows:Compressor The gaseous coolant of the HTHP of 10 blast pipe 10a discharges is flowed into the second heat exchanger 32 through the first four-way valve 21, second Refrigerant is condensed in heat exchanger 32, is converted into the liquid refrigerants of HTHP, liquid refrigerants is flowed through through the 3rd valve member 53 successively First throttle element 41, the throttling expansion effect through first throttle element 41 is converted into the liquid refrigerants of low-temp low-pressure, and low temperature is low The liquid refrigerants of pressure flows into First Heat Exchanger 31 through the 4th valve member 54, and low-temp low-pressure is converted into First Heat Exchanger 31 Gaseous coolant, finally, the S pipes through the second four-way valve 22 enter the air inlet pipe 10b of compressor 10.Now, the second heat exchanger 32 Water in middle water pipe absorbs the heat produced during refrigerant condensation, with to indoor heating.
The third is that air-conditioner heat pump hot-water system operation list heats aqueous mode.
Now, the first valve member 51 and the 4th valve member 54 are opened, the second valve member 52, the 3rd valve member 53 It is turned off with the 5th valve member 55, the first four-way valve 21 and the second four-way valve 22 are powered off.Refrigerant flow is as follows:Compressor 10 Blast pipe 10a discharge HTHP gaseous coolant successively through the first four-way valve 21, the second four-way valve 22 flow into heat exchange In device 33, refrigerant is condensed in heat-exchange device 33, is converted into the liquid refrigerants of HTHP(Now in heat-exchange device 33 Current absorb refrigerant liberated heat, be heated), liquid refrigerants flows through first throttle element 41 through the first valve member 51, Throttling expansion effect through first throttle element 41 is converted into the liquid refrigerants of low-temp low-pressure, and the liquid refrigerants of low-temp low-pressure is through the Four valve members 54 flow into First Heat Exchanger 31, and the gaseous coolant of low-temp low-pressure is converted into First Heat Exchanger 31, finally, warp The S pipes of second four-way valve 22 enter the air inlet pipe 10b of compressor 10.
4th kind is that air-conditioner heat pump hot-water system operation water heating adds refrigeration mode.
Now, the first valve member 51 and the 5th valve member 55 are opened, the second valve member 52, the 3rd valve member 53 It is turned off with the 4th valve member 54, the first four-way valve 21 and the second four-way valve 22 are powered off.Refrigerant flow is as follows:Compressor 10 Blast pipe 10a discharge HTHP gaseous coolant successively through the first four-way valve 21, the second four-way valve 22 flow into heat exchange In device 33, refrigerant is condensed in heat-exchange device 33, is converted into the liquid refrigerants of HTHP(Now in heat-exchange device 33 Current absorb refrigerant liberated heat, be heated), liquid refrigerants flows through first throttle element 41 through the first valve member 51, Throttling expansion effect through first throttle element 41 is converted into the liquid refrigerants of low-temp low-pressure, and the liquid refrigerants of low-temp low-pressure is through the Five valve members 55 flow into the second heat exchanger 32, and the gaseous coolant of low-temp low-pressure is converted into the second heat exchanger 32(Now Water in two heat exchangers 32 in water pipe absorbs the cold produced during refrigerant gasification, with to indoor refrigeration), finally, through first The S pipes of four-way valve 21 enter the air inlet pipe 10b of compressor 10.
5th kind is defrosting mode when air-conditioner heat pump hot-water system operation is heated.
Now, because air-conditioner heat pump hot-water system is after single heating mode runs a period of time, when the relatively low feelings of outdoor temperature Under condition, the surface meeting frosting of First Heat Exchanger 31 can influence the normal operation of whole air-conditioner heat pump hot-water system, accordingly, it would be desirable to Run defrosting mode.Second valve member 52 and the 5th valve member 55 are opened, the first valve member 51, the 3rd valve member 53 It is turned off with the 4th valve member 54, the first four-way valve 21 is powered off, it is electric on the second four-way valve 22.Refrigerant flow is as follows:Compressor The gaseous coolant of the HTHP of 10 blast pipe 10a discharges flows into first through the first four-way valve 21, the second four-way valve 22 successively In heat exchanger 31, refrigerant is condensed in First Heat Exchanger 31, is converted into the liquid refrigerants of HTHP, liquid refrigerants is through the second valve Door component 52 flows through first throttle element 41, and the throttling expansion effect through first throttle element 41 is converted into the liquid of low-temp low-pressure Refrigerant, the liquid refrigerants of low-temp low-pressure flows into the second heat exchanger 32 through the 5th valve member 55, is converted in the second heat exchanger 32 For the gaseous coolant of low-temp low-pressure, finally, the S pipes through the first four-way valve 21 enter the air inlet pipe 10b of compressor 10.
The air-conditioner heat pump hot-water system that the present embodiment is proposed, can isolated operation when to interior without heating or freezing Aqueous mode is heated, even if the water heating of this air-conditioner heat pump hot-water system and refrigerating function are separated, is user-friendly.User can be with The water heating function of this air-conditioner heat pump hot-water system is used alone, and without opening air conditioner refrigerating function.
In addition, to it is indoor freezed or heated while, using heat-exchange device by waste heat be used for flow heated water, plus Water after heat so that air-conditioner heat pump hot-water system reaches the effect of energy-conservation, and then can reduce air-conditioning heat pump for users to use The energy consumption of hot-water heating system.Meanwhile, this air-conditioner heat pump hot-water system can also run defrosting mode when heating, therefore, can avoid winter The normal work of air-conditioner heat pump hot-water system is influenceed because of the surface frosting of First Heat Exchanger 31 when heating, air-conditioning heat pump heat is improved The job stability of water system.
Further, this air-conditioner heat pump hot-water system also include being located at the first valve member 51 and first throttle element 41 it Between device for drying and filtering 61.
Device for drying and filtering 61, which is primarily served, to be dried and filtration.Wherein, filtration:Because of this air-conditioner heat pump hot-water system In installation pipeline, it is possible to do not note bringing into dirt, dirt, such as oxide skin etc may also be produced in pipeline.In addition, note The refrigerant entered also likely to be present impurity in itself, add powder abrasive dust that compressor 10 is operationally produced etc..By dried The filtration of filter 61 is to dispose these mechanical admixtures and dirt, so that ensure that refrigerant smoothly circulates in pipeline, will not The normal work of air-conditioner heat pump hot-water system is influenceed because of blocking.Desiccation:For absorbing the moisture in refrigerant.Moisture source Strictly or there is not air to enter the moisture dissolved in pipeline or in refrigerant in coolant drying.The presence of moisture is likely to cause " water blocking ".By setting the moisture in the suction line of device for drying and filtering 61, so as to prevent the ice that may occur in pipeline from blocking up phenomenon.
In the present embodiment, by setting device for drying and filtering 61 to improve the functional reliability of this air-conditioner heat pump hot-water system.
Further, this air-conditioner heat pump hot-water system also includes being located between the first valve member 51 and device for drying and filtering 61 High-pressure reservoir 62.The effect of high-pressure reservoir 62 is storage refrigerant, allows the refrigerant not being thoroughly cooled to cool down again completely Liquid is reached, uninterruptedly to supply refrigerant to evaporator.
Further, this air-conditioner heat pump hot-water system also includes the hydrojet cooling dress for being used to reduce the delivery temperature of compressor 10 70 are put, the hydrojet heat sink 70 includes the first magnetic valve 701 and the second restricting element 702 being arranged in series, compressor 10 Steam playpipe 10c is connected through the first magnetic valve 701, the second restricting element 702 with first throttle element 41 successively.Need explanation , now compressor 10 correspond to spray liquid enthalpy gain compressor 10, spray liquid enthalpy gain compressor 10 is than general more than 10 one, compressor Steam playpipe 10c.The refrigerant of major cycle is cooled down by steam playpipe 10c, is mixed together with the air inlet pipe 10b refrigerants entered It is compressed afterwards in compressor 10, in low temperature environment in the air-conditioner heat pump hot-water system of work, hydrojet can reduce compressor 10 delivery temperature, it is ensured that the lubricant effect of lubricating oil in compressor 10, improves the stability of compressor 10, and extends compressor 10 service life.In addition, hydrojet can add the mass flow into the refrigerant of condenser so that condenser obtains abundant profit With improving the heating capacity of air-conditioner heat pump hot-water system.
Specifically, this air-conditioner heat pump hot-water system also includes being installed on the first thermometric at the blast pipe 10a of compressor 10 Device 63, when the temperature that the first temperature measuring equipment 63 is measured is more than preset temperature value, hydrojet heat sink 70 is opened.
In the present embodiment, as 95 DEG C of the delivery temperature Tp > of compressor 10, conducted on the first magnetic valve 701;Work as pressure During delivery temperature Tp≤85 DEG C of contracting machine 10, the power-off of the first magnetic valve 701 is closed.
The air-conditioner heat pump hot-water system that the present embodiment is proposed, can be through steaming in low temperature by setting hydrojet heat sink 70 Vapour playpipe 10c sprays refrigerant into compressor 10, so as to improve the capacity of compressor 10, reaches and lifts this under low temperature environment The purpose of air-conditioner heat pump hot-water system heating capacity.
Further, this air-conditioner heat pump hot-water system also includes being used for the defrosting switching device that defrosting is opened in water heating 80, the defrosting switching device 80 includes the first check valve 801, the second magnetic valve 802 and the 3rd restricting element being arranged in series 803, the second end of heat-exchange device 33 is successively through the first check valve 801, the second magnetic valve 802, the 3rd restricting element 803 and The second end connection of one restricting element 41.
Defrosting mode when this air-conditioner heat pump hot-water system can also run water heating.
Because air-conditioner heat pump hot-water system under singly heating aqueous mode after a period of time is run, in the relatively low situation of outdoor temperature Under, the surface meeting frosting of First Heat Exchanger 31, so that the normal operation of whole air-conditioner heat pump hot-water system is influenceed, accordingly, it would be desirable to Run defrosting mode.Now, the second valve member 52 is opened, the first valve member 51, the 3rd valve member 53, the 4th valve group The valve member 55 of part 54 and the 5th is turned off, and the first four-way valve 21 is powered off, electric on the second four-way valve 22.Refrigerant flow is as follows:Pressure The gaseous coolant of the HTHP of the blast pipe 10a discharges of contracting machine 10 is flowed into through the first four-way valve 21, the second four-way valve 22 successively In First Heat Exchanger 31, refrigerant is condensed in First Heat Exchanger 31, is converted into the liquid refrigerants of HTHP, and liquid refrigerants is through the Two valve members 52 flow through the 3rd restricting element 803, and the throttling expansion effect through the 3rd restricting element 803 is converted into low-temp low-pressure Liquid refrigerants, the liquid refrigerants of low-temp low-pressure flowed into heat exchanger, and the gaseous state of low-temp low-pressure is converted into a heat exchanger Refrigerant, finally, the S pipes through the second four-way valve 22 enter the air inlet pipe 10b of compressor 10.
The air-conditioner heat pump hot-water system that the present embodiment is proposed, by setting defrosting switching device 80, is singly heating aqueous mode After lower operation a period of time, when 31 surface frosting of First Heat Exchanger, you can defrosting switching device 80 is opened, so as to avoid because of sky Adjust heat pump hot-water system water heating when the surface frosting of First Heat Exchanger 31 and influence air-conditioner heat pump hot-water system worked well, and then Improve the functional reliability of this air-conditioner heat pump hot-water system.
Further, first throttle element 41 is electric expansion valve, the second restricting element 702 and the 3rd restricting element 803 It is capillary.The degree of regulation of electric expansion valve is better than capillary.
Because the control accuracy requirement in spray liquid enthalpy gain control and when heating water defrosting is not high, now the second restricting element 702 and the 3rd restricting element 803 be set to capillary, relative to electric expansion valve, this air-conditioner heat pump hot-water system can be reduced Cost.
Further, this air-conditioner heat pump hot-water system also include gas-liquid separator 64, one end of the gas-liquid separator 64 with The three-terminal link of the air inlet pipe 10b connections of compressor 10, the other end and the first four-way valve 21.
The effect of gas-liquid separator 64 is to be separated gas coolant with liquid refrigerants, prevents liquid refrigerants through compressor 10 air inlet pipe 10b enters, and causes the phenomenon of liquid refrigerants liquid hazards compressor 10, so as to improve this air-conditioning heat pump heat The functional reliability of water system.
Further, this air-conditioner heat pump hot-water system also includes being used to cut off compression when the back pressure of compressor 10 is too low The low-voltage protective switch 91 of the power supply of machine 10, the low-voltage protective switch 91 is installed at the air inlet pipe 10b of compressor 10.
When generation secondary refrigerant leakage in air-conditioner heat pump hot-water system or the very few coolant quantity in its pipeline, in order to protect compression Machine 10 is without damage, and low-voltage protective switch 91 cuts off the power supply of compressor 10 by force, so as to further increase this air-conditioning heat pump heat The functional reliability of water system.
Further, this air-conditioner heat pump hot-water system also includes being used to cut off compression when the pressure at expulsion of compressor 10 is too high The high voltage protective switch 92 of the power supply of machine 10, high voltage protective switch 92 is installed at the blast pipe 10a of compressor 10.
When the pressure at expulsion hypertonia of compressor 10, high voltage protective switch 92 cuts off the power supply of compressor 10, so as to protect Protect air-conditioner heat pump hot-water system without damage, and then further increase the functional reliability of this air-conditioner heat pump hot-water system.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair The equivalent structure transformation that bright specification and accompanying drawing content are made, or other related technical fields are directly or indirectly used in, Similarly it is included within the scope of the present invention.

Claims (10)

1. a kind of air-conditioner heat pump hot-water system, it is characterised in that changed including compressor, the first four-way valve, the second four-way valve, first Hot device, the second heat exchanger, heat-exchange device, first throttle element, the first valve member, the second valve member, the 3rd valve group Part, the 4th valve member and the 5th valve member, wherein, the heat-exchange device provided with first end, the second end, the 3rd end and 4th end, the 3rd end of refrigerant passage between the first end of the heat-exchange device and the second end and the heat-exchange device and Water stream channel between 4th end is separate, and the refrigerant in the refrigerant passage is with the current in the hot water channel described Heat exchange is carried out in heat-exchange device;
The blast pipe of the compressor is connected with the first end of first four-way valve, air inlet pipe and the 3rd of second port valve End connection;Second end of first four-way valve is successively through second heat exchanger, the 5th valve member and the first throttle The first end connection of element, the 3rd end of first four-way valve and the three-terminal link of second four-way valve and and compression The air inlet pipe connection of machine, the 4th end of first four-way valve is connected with the first end of second four-way valve;Described 2nd 4 Second end of port valve is connected with the first end of the heat-exchange device, and the 4th end of second four-way valve is successively through described first Heat exchanger, the 4th valve member are connected with the first end of first throttle element;Second end of the heat-exchange device is through described One valve member is connected with the second end of the first throttle element;One end of second valve member and first valve Component connect and be connected with the second end of the first throttle element, the other end be connected with the First Heat Exchanger and with it is described 4th valve member is connected;One end of 3rd valve member is connected and first with first throttle with first valve member The second end connection of part, the other end is connected with second heat exchanger and is connected with the 5th valve member.
2. air-conditioner heat pump hot-water system as claimed in claim 1, it is characterised in that also including positioned at first valve member With the device for drying and filtering between the first throttle element.
3. air-conditioner heat pump hot-water system as claimed in claim 2, it is characterised in that also including positioned at first valve member With the high-pressure reservoir between the device for drying and filtering.
4. air-conditioner heat pump hot-water system as claimed in claim 1, it is characterised in that also including for reducing the compressor row The hydrojet heat sink of temperature degree, the hydrojet heat sink includes the first magnetic valve and the second restricting element being arranged in series, institute The steam playpipe for stating compressor is connected through first magnetic valve, the second restricting element with the first throttle element successively.
5. air-conditioner heat pump hot-water system as claimed in claim 4, it is characterised in that also including being opened for being defrosted in water heating The defrosting switching device opened, the defrosting switching device includes the first check valve being arranged in series, the second magnetic valve and Section three Fluid element, the second end of the heat-exchange device is successively through first check valve, the second magnetic valve, the 3rd restricting element and institute State the second end connection of first throttle element.
6. air-conditioner heat pump hot-water system as claimed in claim 5, it is characterised in that the first throttle element is electronic expansion Valve, second restricting element and the 3rd restricting element are capillary.
7. air-conditioner heat pump hot-water system as claimed in claim 1, it is characterised in that also including gas-liquid separator, the gas-liquid point One end from device is connected with the air inlet pipe of the compressor, the three-terminal link of the other end and first four-way valve.
8. air-conditioner heat pump hot-water system as claimed in claim 1, it is characterised in that the also row including being installed on the compressor The first temperature measuring equipment at tracheae, when the temperature that first temperature measuring equipment is measured is more than preset temperature value, the hydrojet drop Warm device is opened.
9. air-conditioner heat pump hot-water system as claimed in claim 1, it is characterised in that also including for when the compressor return air The low-voltage protective switch of the compressor power is cut off during hypotony, the low-voltage protective switch is installed on entering for the compressor At tracheae.
10. air-conditioner heat pump hot-water system as in one of claimed in any of claims 1 to 9, it is characterised in that also including for working as The Compressor Discharge Pressure cuts off the high voltage protective switch of the compressor power when too high, high voltage protective switch is installed on At the blast pipe of the compressor.
CN201410155558.7A 2014-04-17 2014-04-17 Air-conditioner heat pump hot-water system Active CN105020936B (en)

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CN106247508B (en) * 2016-09-12 2019-03-05 青岛海信日立空调系统有限公司 Using the air conditioner heat pump system, air conditioner and air-conditioner control method of injector
CN106763909A (en) * 2017-01-21 2017-05-31 佛山市德天电器有限公司 Three hole check valves and the frostless heat pump with three hole check valves
CN110145886A (en) * 2019-05-08 2019-08-20 陈碧贤 Air energy thermal water central air conditioner system

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CN102914013A (en) * 2012-11-20 2013-02-06 海信(山东)空调有限公司 Hot-water air-conditioning system and operation method thereof
CN103644680A (en) * 2013-12-24 2014-03-19 深圳麦克维尔空调有限公司 Total-heat recycler set

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Publication number Priority date Publication date Assignee Title
CN102914013A (en) * 2012-11-20 2013-02-06 海信(山东)空调有限公司 Hot-water air-conditioning system and operation method thereof
CN103644680A (en) * 2013-12-24 2014-03-19 深圳麦克维尔空调有限公司 Total-heat recycler set

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