CN205655524U - Utilize domestic energy comprehensive utilization system of carbon dioxide as refrigerant - Google Patents

Utilize domestic energy comprehensive utilization system of carbon dioxide as refrigerant Download PDF

Info

Publication number
CN205655524U
CN205655524U CN201620271565.8U CN201620271565U CN205655524U CN 205655524 U CN205655524 U CN 205655524U CN 201620271565 U CN201620271565 U CN 201620271565U CN 205655524 U CN205655524 U CN 205655524U
Authority
CN
China
Prior art keywords
heat exchanger
carbon dioxide
cold
water
producing medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620271565.8U
Other languages
Chinese (zh)
Inventor
康喆
王晓磊
徐博睿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Zhongshi Ruizhe Technology Co Ltd
Original Assignee
Tianjin Zhongshi Ruizhe Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Zhongshi Ruizhe Technology Co Ltd filed Critical Tianjin Zhongshi Ruizhe Technology Co Ltd
Priority to CN201620271565.8U priority Critical patent/CN205655524U/en
Application granted granted Critical
Publication of CN205655524U publication Critical patent/CN205655524U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides an utilize domestic energy comprehensive utilization system of carbon dioxide as refrigerant, high pressure stage have circulating connection in proper order middle heat exchanger, stride supercritical carbon dioxide compressor, high temperature water -cooling heat exchanger, medium temperature water -cooling heat exchanger and stride the supercritical carbon dioxide expansion valve, medium temperature water -cooling heat exchanger still has high -pressure air -cooled heat exchanger through pipeline parallel connection, the low -pressure stage has circulating connection's inferior supercritical carbon dioxide compressor, low temperature water -cooling heat exchanger, ultra -low temperature wind cold coil pipe heat exchanger and inferior supercritical carbon dioxide expansion valve in proper order, and the pipeline between inferior supercritical carbon dioxide compressor and the inferior supercritical carbon dioxide expansion valve communicates the middle heat exchanger of high pressure stage, and low temperature water -cooling heat exchanger connects in parallel has low pressure forced air cooling heat exchanger. The utility model discloses integrating the domestic energy in a system, providing comfortable convenient service environment, dissipative system that moreover will be scattered is integrated, and is more energy -conserving, can use in the lower region of ambient temperature, and efficiency is higher moreover, uses carbon dioxide working medium to compare in the environmental protection more of fluorine -containing working medium.

Description

A kind of residential energy sources utilization system utilizing carbon dioxide as cold-producing medium
Technical field
This utility model relates to a kind of residential energy sources utilization system.Particularly relate to one face based on CO 2 cross Boundary's heat pump techniques and the residential energy sources comprehensive utilization utilizing carbon dioxide as cold-producing medium of carbon dioxide sub critical heat pump techniques Use system.
Background technology
CO 2 cross-critical heat pump techniques, mainly by Trans-critical cycle compressor, expansion valve, air cooler, vaporizer forms, In Trans-critical cycle system, low-pressure section, the pressure of inspiration(Pi) of compressor is less than critical pressure, and evaporating temperature, also below critical temperature, is followed The endothermic process of ring is still carried out under undercritical conditions, and heat transfer process mainly relies on latent heat to complete.But the row of compressor Atmospheric pressure is higher than critical pressure, and at supercritical range, not having phase transformation, pressure and temperature is the most independent parameter, overcomes Asia The restriction that critical cycle is affected by environment.So, CO2 Trans-critical cycle kind of refrigeration cycle has continuously adjustable cold within the specific limits Advantage, affected by environment not quite.This technology is mainly used in indoor heating refrigerating field.
Carbon dioxide sub critical heat pump techniques, the flow process of carbon dioxide sub critical kind of refrigeration cycle and common steam compression type Kind of refrigeration cycle is just the same, and its cyclic process is all carried out below critical point.Due to, carbon dioxide critical temperature is 31.3 DEG C, relatively low, now it is mainly used in refrigerator-freezer meter, the freezing field such as fridge.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of Energy and comfort, and energy-efficient utilizes titanium dioxide Carbon is as the residential energy sources utilization system of cold-producing medium.
This utility model be the technical scheme is that a kind of residential energy sources utilizing carbon dioxide as cold-producing medium is comprehensive Utilizing system, include hiigh pressure stage and the low-pressure stage mutually carrying out heat exchange, described hiigh pressure stage includes has cold-producing medium by stream Pipeline circulate the Intermediate Heat Exchanger of connection, critical-cross carbon dioxide compressor, high-temperature water cooling heat exchanger successively, middle warm water is cold changes Hot device and critical-cross carbon dioxide expansion valve, described middle warm water cold heat exchanger is connected in parallel to also by pipeline that high pressure is air-cooled to be changed Hot device, wherein, refrigerant inflow port and the flow export of described middle warm water cold heat exchanger are each provided with one respectively according to season Selecting the high-pressure ball valve of refrigerant flow direction, the refrigerant inflow port of described high-pressure blast cold heat exchanger and flow export also distinguish each setting There is a high-pressure ball valve according to Season select refrigerant flow direction;Described low-pressure stage includes the pipeline being had cold-producing medium by stream Circulate the subcritical carbon dioxide compressor of connection, water at low temperature cold heat exchanger, ultralow temperature ventilated disc heat exchange of heat pipe and Asia successively to face The carbon dioxide expanded valve in boundary, the pipeline connection between described subcritical carbon dioxide compressor and subcritical carbon dioxide expansion valve The Intermediate Heat Exchanger of hiigh pressure stage, and carry out heat exchange with the cold-producing medium flowing through Intermediate Heat Exchanger from hiigh pressure stage, described low temperature water-cooled is changed Hot device is connected in parallel to low-pressure air cold heat exchanger, wherein, the refrigerant inflow port of described water at low temperature cold heat exchanger also by pipeline A low pressure ball valve according to Season select refrigerant flow direction it is each provided with respectively with flow export, described low-pressure air cold heat exchanger Refrigerant inflow port and flow export are each provided with a low pressure ball valve according to Season select refrigerant flow direction the most respectively.
Described cold-producing medium is carbon dioxide.
The water inlet of the water pipe for carrying out heat exchange with described cold-producing medium in described high-temperature water cooling heat exchanger and water outlet Mouth is connected respectively outlet and the water inlet of Indoor Thermal water tank.
The water inlet of the water pipe for carrying out heat exchange with described cold-producing medium in described middle warm water cold heat exchanger and water outlet Mouth is connected respectively outlet and the water inlet of fan coil in room conditioning.
The water inlet of the water pipe for carrying out heat exchange with described cold-producing medium in described water at low temperature cold heat exchanger and water outlet Mouth is connected respectively outlet and the water inlet of fan coil in room conditioning.
Described ultralow temperature ventilated disc heat exchange of heat pipe is arranged on refrigerator inside as the low-temperature receiver of refrigerator.
A kind of residential energy sources utilization system utilizing carbon dioxide as cold-producing medium of the present utility model, by domestic energy Source is incorporated in a system, provide not only the comfortable environment that uses easily, and scattered dissipative system is integrated, more Energy-conservation, use carbon dioxide as cooling and warming working medium simultaneously, be possible not only to use in ambient temperature lower ground territory, Er Qiexiao Rate is higher, uses carbon dioxide working medium more environmentally-friendly compared to fluorine-containing working medium.Have the advantages that
1, by multi-stage compression (making superposition type into compress), reduce compressor pressure ratio, reduce compressor and do manual work, improve system Efficiency, saves the energy.
2, operation that can be more stable in the environment of the coldest, during winter, the evaporating temperature of low side evaporator is Low it is down to-35 DEG C, most area heat supply in winter demand can be met.
3, integrating control, it is simple to regulation, Energy and comfort, more energy-conservation.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
In figure
1: high-pressure blast cold heat exchanger 2: high-temperature water cooling heat exchanger
3: middle warm water cold heat exchanger 4: Intermediate Heat Exchanger
5: critical-cross carbon dioxide compressor 6: critical-cross carbon dioxide expansion valve
7: subcritical carbon dioxide compressor 8: ultralow temperature ventilated disc heat exchange of heat pipe
9: water at low temperature cold heat exchanger 10: low-pressure air cold heat exchanger
11: subcritical carbon dioxide expansion valve 12,13: high-pressure ball valve
14,15: high-pressure ball valve 16,17: low pressure ball valve
18,19: low pressure ball valve
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing to a kind of domestic energy utilizing carbon dioxide as cold-producing medium of the present utility model Source utilization system is described in detail.
A kind of residential energy sources utilization system utilizing carbon dioxide as cold-producing medium of the present utility model, includes phase Carry out hiigh pressure stage and the low-pressure stage of heat exchange mutually, utilize CO 2 cross-critical and subcritical heat pump can provide different temperatures Heat energy, apply cold and hot warm the most integrated cold four alliances realizing family in family's energy resource system.As it is shown in figure 1, it is described Hiigh pressure stage includes has the pipeline of cold-producing medium to circulate the Intermediate Heat Exchanger 4 of connection successively by stream, critical-cross carbon dioxide compresses Machine 5, high-temperature water cooling heat exchanger 2, middle warm water cold heat exchanger 3 and critical-cross carbon dioxide expansion valve 6, the described cold heat exchange of middle warm water Device 3 is connected in parallel to high-pressure blast cold heat exchanger 1 also by pipeline, and described cold-producing medium is carbon dioxide.Wherein, described middle temperature The refrigerant inflow port of water cooling heat exchanger 3 and flow export are each provided with a high pressure according to Season select refrigerant flow direction respectively Ball valve 12,13, the refrigerant inflow port of described high-pressure blast cold heat exchanger 1 and flow export are each provided with one the most respectively according to season Select the high-pressure ball valve 14,15 of refrigerant flow direction;Described low-pressure stage includes has the pipeline of cold-producing medium to circulate successively by stream Subcritical carbon dioxide compressor 7, water at low temperature cold heat exchanger 9, ultralow temperature ventilated disc heat exchange of heat pipe 8 and the subcritical dioxy connected Change carbon expansion valve 11, the pipeline connection between described subcritical carbon dioxide compressor 7 and subcritical carbon dioxide expansion valve 11 The Intermediate Heat Exchanger 4 of hiigh pressure stage, and carry out heat exchange, described low temperature water-cooled with the cold-producing medium flowing through Intermediate Heat Exchanger 4 from hiigh pressure stage Heat exchanger 9 is connected in parallel to low-pressure air cold heat exchanger 10 also by pipeline, and described cold-producing medium is carbon dioxide.Wherein, described The refrigerant inflow port of water at low temperature cold heat exchanger 9 and flow export are each provided with one respectively according to Season select refrigerant flow direction Low pressure ball valve 16,17, the refrigerant inflow port of described low-pressure air cold heat exchanger 10 and flow export are each provided with a root the most respectively According to the low pressure ball valve 18,19 of Season select refrigerant flow direction, described ultralow temperature ventilated disc heat exchange of heat pipe 8 can be as refrigerator Low-temperature receiver is arranged on refrigerator inside.
The water inlet of the water pipe for carrying out heat exchange with described cold-producing medium in described high-temperature water cooling heat exchanger 2 and water outlet Mouth is connected respectively outlet and the water inlet of Indoor Thermal water tank.
The water inlet of the water pipe for carrying out heat exchange with described cold-producing medium in described middle warm water cold heat exchanger 3 and water outlet Mouth is connected respectively outlet and the water inlet of fan coil in room conditioning.
The water inlet of the water pipe for carrying out heat exchange with described cold-producing medium in described water at low temperature cold heat exchanger 9 and water outlet Mouth is connected respectively outlet and the water inlet of fan coil in room conditioning.
A kind of residential energy sources utilization system utilizing carbon dioxide as cold-producing medium of the present utility model, during installation, First the heat exchange scale according to system determines the size of all parts, then by high-pressure blast cold heat exchanger 1, and high-temperature water cooling heat exchanger 2, middle warm water cold heat exchanger 3, Intermediate Heat Exchanger 4, critical-cross carbon dioxide compressor 5, critical-cross carbon dioxide expansion valve 6, sub- Critical carbon dioxide compressor 7, ultralow temperature ventilated disc heat exchange of heat pipe 8, water at low temperature cold heat exchanger 9, low-pressure air cold heat exchanger 10, sub- Critical carbon dioxide expansion valve 11, welds according to the relative position shown in Fig. 1 respectively, the most again by water lines by middle warm water Cold heat exchanger 3 is connected to room conditioning fan coil with the water side of water at low temperature cold heat exchanger 9, and high-temperature water cooling heat exchanger 2 is connected to Boiler, installs outcase of refrigerator additional outside ultralow temperature ventilated disc heat exchange of heat pipe 8, thus constitutes complete one and utilizes carbon dioxide to make Residential energy sources utilization system for cold-producing medium.
The work of a kind of residential energy sources utilization system utilizing carbon dioxide as cold-producing medium of the present utility model is former Reason is: during winter, and the high-pressure ball valve 12,13 at middle warm water cold heat exchanger 3 two ends is opened, the high pressure of high-pressure blast cold heat exchanger 1 both sides Ball valve 14,15 is closed, and the low pressure ball valve 16,17 of water at low temperature cold heat exchanger both sides is closed, the low pressure of low-pressure air cold heat exchanger both sides Ball valve 18,19 is opened.Middle warm water cold heat exchanger 3 is connected with indoor fan coil pipe by water route reversal valve, hiigh pressure stage carbon dioxide It is compressed to 12MPa by critical-cross carbon dioxide compressor 5, after high-temperature water cooling heat exchanger 2 heat exchange, high-temperature water cooling heat exchanger 2 leaving water temperatures are 60 DEG C, flow into Indoor Thermal water tank and provide domestic bathing water, flow through the high pressure dioxy of high-temperature water cooling heat exchanger 2 Changing carbon steam and pass through mid temperature heat exchanger 3 and fan coil, heating water in heating chamber, after the heat absorption of indoor heating water, temperature reaches 45 DEG C, be indoor heating by circulating pump, flows through the carbon dioxide of mid temperature heat exchanger 3 through critical-cross carbon dioxide expansion valve 6 Decompression, is depressurized to 7MPa, enters Intermediate Heat Exchanger 4 and low-pressure side carbon dioxide heat exchange, forms the superheated steam of certain mass dryness fraction, returns To on high-tension side critical-cross carbon dioxide compressor 5, complete high-pressure side circulation.The carbon dioxide of low-pressure side high temperature is at intermediate heat transfer Device 4 condenses, enters subcritical expansion valve 11 expansion decompression to 2.4MPa, laggard excess of imports low-temperature air-cooling coil heat exchanger 8, air-cooled Coil heat exchanger 8 is arranged on refrigerator inside, and as the low-temperature receiver of refrigerator, now evaporating temperature is-13 DEG C, and evaporating temperature can be by swollen Swollen valve is adjusted, and after the air-cooled coil pipe of ultralow temperature evaporates, low pressure CO 2 enters low-pressure air cold heat exchanger 10, low-pressure air Cold heat exchanger 10 is placed in outdoor, and important (mainly) is used for heats different between balance and regulation heating and refrigeration, passes through and outdoor Air heat-exchange, forms the superheated steam of certain mass dryness fraction, enters subcritical carbon dioxide compressor 7 and completes low-pressure stage circulation.
During summer, the high-pressure ball valve 12,13 at middle warm water cold heat exchanger 3 two ends is closed, the height of high-pressure blast cold heat exchanger 1 both sides Pressure ball valve 14,15 is opened, and the low pressure ball valve 16,17 of water at low temperature cold heat exchanger both sides is opened, low-pressure air cold heat exchanger both sides low Pressure ball valve 18,19 cuts out.Hiigh pressure stage carbon dioxide is compressed to 9MPa, through high-temperature water by critical-cross carbon dioxide compressor 5 After cold heat exchanger 2 heat exchange, high-temperature water cooling heat exchanger 2 leaving water temperature is 45 DEG C, it is provided that domestic bathing water, flows through high-temperature water cooling and changes The carbon dioxide-vapor of the high pressure of hot device 2 passes through high-pressure blast cold heat exchanger 1, with outdoor air heat exchange, after reducing temperature, makes temperature Less than 40 DEG C, reduce pressure through critical-cross carbon dioxide expansion valve 6, be depressurized to 6.5MPa, enter Intermediate Heat Exchanger 4 and low-pressure side two Carbonoxide heat exchange, forms the superheated steam of certain mass dryness fraction, returns to high-pressure side critical-cross carbon dioxide compressor 5, completes high-pressure side Circulation.The carbon dioxide of low-pressure side high temperature condenses in Intermediate Heat Exchanger 4, enters subcritical expansion valve 11 expansion decompression extremely 2.4MPa, laggard excess of imports low-temperature air-cooling coil heat exchanger, ventilated disc heat exchange of heat pipe is arranged on refrigerator inside, cold as refrigerator Source, now evaporating temperature is-13 DEG C, and evaporating temperature can be adjusted by expansion valve, after the air-cooled coil pipe of ultralow temperature evaporates, Low pressure CO 2 enters complete evaporation in water at low temperature cold heat exchanger 9, forms superheated steam, absorbs fan coil in room conditioning The heat of water, makes water at low temperature cold heat exchanger leaving water temperature be reduced to 7 DEG C, is indoor refrigeration through circulating pump.Flow through low temperature water-cooled The overheated carbon dioxide-vapor of heat exchanger 9 enters subcritical carbon dioxide compressor 7 and completes low-pressure stage circulation.

Claims (6)

1. utilize carbon dioxide as a residential energy sources utilization system for cold-producing medium, include the height mutually carrying out heat exchange Arbitrarily downgrade and low-pressure stage, it is characterised in that described hiigh pressure stage includes has the pipeline of cold-producing medium to circulate connection successively by stream Intermediate Heat Exchanger (4), critical-cross carbon dioxide compressor (5), high-temperature water cooling heat exchanger (2), middle warm water cold heat exchanger (3) and across Critical carbon dioxide expansion valve (6), described middle warm water cold heat exchanger (3) is connected in parallel to the air-cooled heat exchange of high pressure also by pipeline Device (1), wherein, refrigerant inflow port and the flow export of described middle warm water cold heat exchanger (3) are each provided with a basis respectively The high-pressure ball valve (12,13) of Season select refrigerant flow direction, the refrigerant inflow port of described high-pressure blast cold heat exchanger (1) and outflow Mouth is each provided with a high-pressure ball valve according to Season select refrigerant flow direction (14,15) the most respectively;Described low-pressure stage includes Have and have the pipeline of cold-producing medium to circulate the subcritical carbon dioxide compressor (7) of connection, water at low temperature cold heat exchanger successively by stream (9), ultralow temperature ventilated disc heat exchange of heat pipe (8) and subcritical carbon dioxide expansion valve (11), the compression of described subcritical carbon dioxide The Intermediate Heat Exchanger (4) of the pipeline connection hiigh pressure stage between machine (7) and subcritical carbon dioxide expansion valve (11), and with from high pressure Level flows through the cold-producing medium of Intermediate Heat Exchanger (4) and carries out heat exchange, and described water at low temperature cold heat exchanger (9) is connected in parallel to also by pipeline Low-pressure air cold heat exchanger (10), wherein, the refrigerant inflow port of described water at low temperature cold heat exchanger (9) and flow export each setting respectively There are a low pressure ball valve according to Season select refrigerant flow direction (16,17), the cold-producing medium of described low-pressure air cold heat exchanger (10) Inflow entrance and flow export are each provided with a low pressure ball valve according to Season select refrigerant flow direction (18,19) the most respectively.
A kind of residential energy sources utilization system utilizing carbon dioxide as cold-producing medium the most according to claim 1, its Being characterised by, described cold-producing medium is carbon dioxide.
A kind of residential energy sources utilization system utilizing carbon dioxide as cold-producing medium the most according to claim 1, its Be characterised by, in described high-temperature water cooling heat exchanger (2) for described cold-producing medium carry out heat exchange water pipe water inlet and Outlet is connected respectively outlet and the water inlet of Indoor Thermal water tank.
A kind of residential energy sources utilization system utilizing carbon dioxide as cold-producing medium the most according to claim 1, its Be characterised by, in described middle warm water cold heat exchanger (3) for described cold-producing medium carry out heat exchange water pipe water inlet and Outlet is connected respectively outlet and the water inlet of fan coil in room conditioning.
A kind of residential energy sources utilization system utilizing carbon dioxide as cold-producing medium the most according to claim 1, its Be characterised by, in described water at low temperature cold heat exchanger (9) for described cold-producing medium carry out heat exchange water pipe water inlet and Outlet is connected respectively outlet and the water inlet of fan coil in room conditioning.
A kind of residential energy sources utilization system utilizing carbon dioxide as cold-producing medium the most according to claim 1, its Being characterised by, described ultralow temperature ventilated disc heat exchange of heat pipe (8) is arranged on refrigerator inside as the low-temperature receiver of refrigerator.
CN201620271565.8U 2016-03-31 2016-03-31 Utilize domestic energy comprehensive utilization system of carbon dioxide as refrigerant Expired - Fee Related CN205655524U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620271565.8U CN205655524U (en) 2016-03-31 2016-03-31 Utilize domestic energy comprehensive utilization system of carbon dioxide as refrigerant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620271565.8U CN205655524U (en) 2016-03-31 2016-03-31 Utilize domestic energy comprehensive utilization system of carbon dioxide as refrigerant

Publications (1)

Publication Number Publication Date
CN205655524U true CN205655524U (en) 2016-10-19

Family

ID=57390621

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620271565.8U Expired - Fee Related CN205655524U (en) 2016-03-31 2016-03-31 Utilize domestic energy comprehensive utilization system of carbon dioxide as refrigerant

Country Status (1)

Country Link
CN (1) CN205655524U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105674621A (en) * 2016-03-31 2016-06-15 天津众石睿哲科技有限责任公司 Domestic energy comprehensive utilization system with carbon dioxide as refrigerant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105674621A (en) * 2016-03-31 2016-06-15 天津众石睿哲科技有限责任公司 Domestic energy comprehensive utilization system with carbon dioxide as refrigerant

Similar Documents

Publication Publication Date Title
CN102997499B (en) A kind of heat pump apparatus of air source simultaneously can producing cold water and hot water
KR100869971B1 (en) Freeze, refrigeration and warm water accumulation system using heatpump
WO2019141019A1 (en) Control method for transcritical carbon dioxide composite heat pump system
CN104296413A (en) Variable frequency low-temperature strong heat air conditioner system
CN105042931A (en) Combined heat pump system adopting trans-critical circulation and absorption heat pump co-production
CN103743020A (en) Dual-temperature radiation household air-conditioner capable of processing fresh air
CN206973923U (en) A kind of heating and refrigeration all-in-one
CN210220281U (en) Variable-frequency refrigerating and heating device with fresh air constant-temperature dehumidifying function
CN104697227A (en) Evaporation condensation high-efficiency screw water chilling unit with deep supercooling device
CN202757346U (en) Central air-conditioning and hot water all-in-one machine
CN205655524U (en) Utilize domestic energy comprehensive utilization system of carbon dioxide as refrigerant
CN110030756A (en) A kind of Trans-critical cycle CO with injector2Multi-temperature zone supermarket cold-hot combined supply system
CN105004095A (en) Compound heat pump system for co-production by adopting trans-critical circle and two-stage absorption type heat pump cycle
CN205807828U (en) A kind of compression refrigerating machine condensation heat utilization system
CN205783497U (en) A kind of water energy storage system
CN105371516B (en) Carbon dioxide twin-stage cold-hot combined supply system
CN105674621A (en) Domestic energy comprehensive utilization system with carbon dioxide as refrigerant
CN204478567U (en) With the evaporative condenser high-efficiency screw handpiece Water Chilling Units of deeply undercooling device
CN208887148U (en) A kind of critical-cross carbon dioxide air-source refrigeration system
CN104344592A (en) Condenser unit with injector for steam compression refrigeration
CN101021368A (en) Energy conserving heat exchanging device utilizing refrigerant
CN103557633B (en) A kind of air source low-temperature trilogy supply heat-pump hot-water unit and implementation method thereof
KR101200503B1 (en) Triple complex heat pump system
CN207649003U (en) A kind of coupled system of refrigerator and air-conditioning
CN207073969U (en) A kind of cold-hot integrated machine

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161019

Termination date: 20170331