CN205747578U - A kind of combined supply system - Google Patents
A kind of combined supply system Download PDFInfo
- Publication number
- CN205747578U CN205747578U CN201620383897.5U CN201620383897U CN205747578U CN 205747578 U CN205747578 U CN 205747578U CN 201620383897 U CN201620383897 U CN 201620383897U CN 205747578 U CN205747578 U CN 205747578U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- port
- compressor
- heat
- refrigeration system
- 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
Links
- 238000005057 refrigeration Methods 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 238000010521 absorption reaction Methods 0.000 abstract description 12
- 239000002826 coolant Substances 0.000 description 16
- 238000001704 evaporation Methods 0.000 description 11
- 230000008020 evaporation Effects 0.000 description 11
- 238000001816 cooling Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 238000004378 air conditioning Methods 0.000 description 5
- 239000006200 vaporizer Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
This utility model embodiment provides a kind of combined supply system, and the heat absorption of release during the second refrigeration system refrigeration can be used for water heating by the first refrigeration system, it is achieved recuperation of heat.The technical scheme of this utility model embodiment a kind of combined supply system of offer is: include the first refrigeration system and the second refrigeration system;Described first refrigeration system includes the first compressor, the first cross valve, the first gas-liquid separator, First Heat Exchanger, the second heat exchanger, the 3rd heat exchanger, the first stop valve, first throttle parts, second section stream unit;Described second refrigeration system includes the second compressor, the second cross valve, the second gas-liquid separator, the 4th heat exchanger, the 5th heat exchanger, the 6th heat exchanger, the second stop valve, the 3rd throttle part and the 4th throttle part;Described second heat exchanger and described 4th heat exchanger are heat source side heat exchanger, described second heat exchanger and described 4th heat exchanger and are structure as a whole, and are provided with fan part near the side of described second heat exchanger.
Description
Technical field
This utility model embodiment relates to technical field of air-conditioning heat pumps, is specifically related to a kind of combined supply system.
Background technology
Existing most air-conditioning heat pump product, air-conditioning is based on refrigeration or heats, when air-conditioning is in refrigeration,
To the substantial amounts of heat of outdoor discharge;Heat pump is based on water heating, when unit carries out water heating, and evaporation side
Temperature is the highest, heats speed the fastest, and efficiency is the highest.Present stage overwhelming majority air-conditioning heat pump product function list
One, the unit that breaks down loses all functions, and equipment and energy utilization rate are low.
And existing combined supply system, it being made up of double self-contained refrigerating systems, vaporizer and condenser are made of one,
Its heat exchanger is arranged before and after being placed with on wind direction, the arrangement up and down in structure and cross arrangement, Qi Zhongqian
The vaporizer of the water heating function of rear arrangement in front (windward district), the condenser of refrigerating function rear (under
Wind district) in order to the condensed water on vaporizer is used for reducing the condensation temperature of condenser, thus
Condensed water on water heating vaporizer is used for cooling down the condenser of refrigeration,
The defect of prior art is, when arrangement, cooling system water heating before and after two devices are pressed on wind direction,
The heat that condenser discharges can not be used for water heating, there is no heat recovery function.
Utility model content
This utility model embodiment provides a kind of combined supply system, and the first refrigeration system can be by the second refrigeration system
When controlling is cold, the heat absorption of release is used for water heating, it is achieved recuperation of heat.
This utility model embodiment provide a kind of combined supply system technical scheme be: the first refrigeration system and
Second refrigeration system;
Described first refrigeration system include the first compressor, the first cross valve, the first gas-liquid separator,
One heat exchanger, the second heat exchanger, the 3rd heat exchanger, the first stop valve, first throttle parts and second section
Stream unit;
Described second refrigeration system include the second compressor, the second cross valve, the second gas-liquid separator,
Four heat exchangers, the 5th heat exchanger, the 6th heat exchanger, the second stop valve, the 3rd throttle part and Section four
Stream unit;
Described second heat exchanger and described 4th heat exchanger are heat source side heat exchanger, described second heat exchanger
It is structure as a whole with described 4th heat exchanger, is provided with fan part near the side of described second heat exchanger.
Preferably, described first compressor connects the port D of described first cross valve, described first cross valve
Port C connect described First Heat Exchanger, described First Heat Exchanger connect described 3rd heat exchanger port d,
Described 3rd heat exchanger port c connects described second section stream unit, described second section stream unit connection described the
Two heat exchangers, described second heat exchanger connects the port E of described first cross valve, described first cross valve
Port S connects described first gas-liquid separator, and described first gas-liquid separator connects described first compressor.
Preferably, described first refrigeration system also includes the first stop valve, first throttle parts, described
One heat exchanger also connects described first stop valve, and described first stop valve connects described first throttle parts,
The port a of the 3rd heat exchanger described in described first throttle members, the port b of described 3rd heat exchanger are even
Logical described first compressor.
Preferably, described second compressor connects the port D of described second cross valve, described second cross valve
Port C connect described 4th heat exchanger, described 4th heat exchanger connect described 6th heat exchanger port d,
Described 6th heat exchanger port c connects described 4th throttle part, described 4th throttle part connection described the
Five heat exchangers, described 5th heat exchanger connects the port E of described second cross valve, described second cross valve
Port S connects described second gas-liquid separator, and described second gas-liquid separator connects described second compressor.
Preferably, described second refrigeration system also includes the second stop valve, the 3rd throttle part, described
Four heat exchangers also connect described second stop valve, and described second stop valve connects described 3rd throttle part,
Described 3rd throttle part connects the port a of described 6th heat exchanger, and the port b of described 6th heat exchanger is even
Logical described second compressor.
Preferably, it is provided with Huan Feng district between described second heat exchanger and described 4th heat exchanger.
Technique scheme is used to provide the benefit that:
First refrigeration system and the second refrigeration system all can realize individually freezing, heat, water heating function,
When the second refrigeration system is that refrigerating state, the first refrigeration system heat or during water heating, the 4th heat exchanger and
Second heat exchanger is followed successively by He Feng district of windward district, the coolant stream in the second refrigeration system along wind flow direction
Releasing substantial amounts of heat through the 4th i.e. heat source side heat exchanger of heat exchanger, the i.e. heat source side heat exchanger of the second heat exchanger is inhaled
Receive the 4th heat exchanger liberated heat to heat or water heating, it is achieved that heat recovery function.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that,
Accompanying drawing in describing below is only embodiment of the present utility model, comes for those of ordinary skill in the art
Say, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 is the structure chart of a kind of combined supply system of this utility model embodiment.
Detailed description of the invention
This utility model embodiment provides a kind of combined supply system, and the first refrigeration system can be by the second refrigeration system
When controlling is cold, the heat absorption of release is used for water heating, it is achieved recuperation of heat.
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one
Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this
The scope of utility model protection.
Fig. 1 is the combined supply system figure of utility model, its mainly by first compressor the 1, first stop valve 3,
First throttle parts the 2, second compressor the 4, the 6th heat exchanger the 5, the 3rd throttle part the 6, second stop valve 7,
5th heat exchanger the 8, the 4th throttle part the 9, second gas-liquid separator the 10, second cross valve the 11, the 4th changes
Hot device the 12, the 3rd heat exchanger 13, second section stream unit 14, Huan Feng district the 15, first gas-liquid separator 16,
The parts compositions such as the second heat exchanger 17, fan part the 18, first cross valve 19, First Heat Exchanger 20,
Second heat exchanger 17 and the 4th heat exchanger 12 are heat source side heat exchanger, First Heat Exchanger 20 and the 5th heat exchange
Device 8 is for using the side i.e. user side heat exchanger of heat exchanger.
This combined supply system is mainly made up of the first refrigeration system and the second refrigeration system, the connection of each parts
Relation:
1) refrigeration system is mainly by the first compressor 1 primary flow path and the group of the first compressor 1 air injection enthalpy-increasing branch road
Become, wherein:
First compressor 1 primary flow path: described first compressor 1 is connected with described first cross valve 19 interface D,
Described first cross valve 19 interface C is connected with described First Heat Exchanger 20, and described First Heat Exchanger 20 is with described
3rd heat exchanger 13 interface d connects, and described 3rd heat exchanger 13 interface C is with described second section stream unit 14 even
Connecing, described second section stream unit 14 is connected with described second heat exchanger 17, described second heat exchanger 17 and institute
Stating the first cross valve interface E to connect, described first cross valve interface S is with described first gas-liquid separator 16 even
Connecing, described first gas-liquid separator 16 is connected with described first compressor 1.By the connection of above-mentioned parts,
Define the circulation of the first compressor 1 primary flow path.
First compressor 1 air injection enthalpy-increasing branch road: described First Heat Exchanger 20 is also with described first stop valve 3 even
Connecing, described first stop valve 3 is connected with described first throttle parts 2, and described first throttle parts 2 are with described
3rd heat exchanger 13 interface a connects, and described 3rd heat exchanger 13 interface b is connected with described first compressor 1.
By the connection of above-mentioned parts, form the first compressor 1 air injection enthalpy-increasing branch road.
By the first compressor 1 primary flow path and the combination of the first compressor 1 air injection enthalpy-increasing branch road, define
The circulation stream of one refrigeration system.
2) the second refrigeration system is mainly by the second compressor 4 primary flow path and the second compressor 4 air injection enthalpy-increasing branch road
Composition, wherein:
Second compressor 4 primary flow path is: described second compressor 4 is with described second cross valve 11 interface D even
Connecing, described second cross valve 11 interface C is connected with described 4th heat exchanger 12, described 4th heat exchanger 12
It is connected with described 6th heat exchanger 5 interface d, described 6th heat exchanger 5 interface c and described 4th throttle part 9
Connecting, described 4th throttle part 9 is connected with described 5th heat exchanger 8, and described 5th heat exchanger 8 is with described
Second cross valve interface E connects, and described second cross valve interface S is connected with described second gas-liquid separator 10,
Described second gas-liquid separator 10 is connected with described second compressor 4.By the connection of above-mentioned parts, shape
Become the circulation of the second compressor 4 primary flow path.
Second compressor 4 air injection enthalpy-increasing branch road: described 4th heat exchanger 12 is also with described second stop valve 7 even
Connecing, described second stop valve 7 is connected with described 3rd throttle part 6, and described 3rd throttle part 6 is with described
6th heat exchanger 5 interface a connects, and described 6th heat exchanger 5 interface b is connected with described second compressor 4.Logical
Cross the connection of above-mentioned parts, form the second compressor 4 air injection enthalpy-increasing branch road.
By the second compressor 4 primary flow path and the combination of the second compressor 4 air injection enthalpy-increasing branch road, define
The circulation of two refrigeration systems.
3) connection of ducting system: described 4th heat exchanger 12 is connected with described Huan Feng district 15, described slow wind
District 15 is connected with described second heat exchanger 17, and described second heat exchanger 17 is connected with described fan part 18.
By the connection of above-mentioned parts, define the ducting system of this combined supply system.
Under the drive of fan part 18, wind is entered by described 4th heat exchanger 12, at the 4th heat exchanger 12
Heat exchange Hou Jinghuanfeng district 15 current stabilization flows into the second heat exchanger 17 after mixing temperature first, and the wind after heat exchange first exists
System is discharged after second heat exchanger 17 heat exchange again.
The operation principle of combined supply system is illustrated below in conjunction with Fig. 1:
1) the first refrigeration system heats or water heating: the coolant of High Temperature High Pressure is flowed to by the first compressor 1
One cross valve 19, is then flowed to First Heat Exchanger 20 heat release cooling by the first cross valve 19, after heat release cooling
Coolant be divided into two, primary flow path enters after the 3rd heat exchanger 13 heat exchange and second section stream unit 14 throttle
Second heat exchanger 17 heat absorption evaporation, the coolant after heat absorption evaporation is through the first cross valve 19 and the first gas-liquid separation
Device 16 returns to the first compressor 1;Air injection enthalpy-increasing branch road is after the first stop valve 3 and first throttle parts 2 throttle
Entering the 3rd heat exchanger 13 heat absorption evaporation, the coolant after heat absorption evaporation flows back to the first compressor 1, thus completes
Heating or water heating function of first refrigeration system.When outdoor temperature is the lowest, off-premises station heat-exchange capacity
Declining, compressor return air amount reduces, and compressor horsepower reduces, and pressure ratio increases, and affects unit properly functioning,
But by the design of air injection enthalpy-increasing branch road, increase refrigerating system coolant circulating load, it is ensured that unit is at low temperature ring
Under border properly functioning.
2) the first refrigeration system refrigeration: the coolant of High Temperature High Pressure is flowed to the first cross valve by the first compressor 1
19, then flowed to the second heat exchanger 17 heat release cooling, the coolant warp after heat release cooling by the first cross valve 19
Flowed to First Heat Exchanger 20 by the 3rd heat exchanger 13 after second section stream unit 14 throttling absorb heat evaporation, heat absorption steaming
Coolant after Faing flows back to the first compressor 1 through the first cross valve 19 and the first gas-liquid separator 16.Thus complete
The refrigerating function of the first refrigeration system.
3) the second refrigeration system heats or water heating: the coolant of High Temperature High Pressure is flowed to by the second compressor 4
Two cross valves 11, are then flowed to the 5th heat exchanger 8 heat release cooling by the second cross valve 11, after heat release cooling
Coolant is flowed to the 4th heat exchanger 12 by the 6th heat exchanger 5 after the 4th throttle part 9 throttling and absorbs heat evaporation, suction
Coolant after thermal evaporation flows back to the second compressor 4 through the second cross valve 11 and the second gas-liquid separator 10, thus
Complete heating or water heating function of the second refrigeration system.
4) the second refrigeration system refrigeration: the coolant of High Temperature High Pressure is flowed to the second cross valve by the second compressor 4
11, then flowed to the 4th heat exchanger 12 heat release cooling, the coolant one after heat release cooling by the second cross valve 11
Being divided into two, primary flow path enters the 5th heat exchanger 8 after the 6th heat exchanger 5 heat exchange and the 4th throttle part 9 throttle
Heat absorption evaporation, the coolant after heat absorption evaporation returns to second through the second cross valve 11 and the second gas-liquid separator 10
Compressor 4;Spray liquid enthalpy gain branch road enters the 6th heat exchange after the second stop valve 7 and the 3rd throttle part 6 throttle
Device 5 heat absorption evaporation, the coolant after heat absorption evaporation flows back to the second compressor 4.Thus complete the second refrigeration system
Refrigerating function.
5) recuperation of heat: when the second refrigeration system freeze, the first refrigeration system heats or during water heating, first
Second refrigeration system the 4th heat exchanger 12 liberated heat is absorbed by the second heat exchanger 17 of refrigeration system to be made
Heat or water heating, it is achieved heat recovery function.
By the combination of above-mentioned functions, make this combined supply system freeze respectively, heat and water heating, it is possible to
Freeze simultaneously with system, heat and water heating, it is also possible to heat during refrigeration, water heating and when heating when freezing
Water heating.So, this combined supply system have multiple functional, fault-resistant ability is strong, utilization rate of equipment and installations is high,
The advantages such as applied widely, recuperation of heat.
Below it is only preferred implementation of the present utility model, it is noted that the above-mentioned side of being preferable to carry out
Formula is not construed as restriction of the present utility model, and protection domain of the present utility model should be with claim institute
Limit in the range of standard.For those skilled in the art, new without departing from this practicality
In the spirit and scope of type, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as
Protection domain of the present utility model.
Claims (6)
1. a combined supply system, it is characterised in that include the first refrigeration system and the second refrigeration system;
Described first refrigeration system include the first compressor, the first cross valve, the first gas-liquid separator,
One heat exchanger, the second heat exchanger, the 3rd heat exchanger, the first stop valve, first throttle parts and second section
Stream unit;
Described second refrigeration system include the second compressor, the second cross valve, the second gas-liquid separator,
Four heat exchangers, the 5th heat exchanger, the 6th heat exchanger, the second stop valve, the 3rd throttle part and Section four
Stream unit;
Described second heat exchanger and described 4th heat exchanger are heat source side heat exchanger, described second heat exchanger
It is structure as a whole with described 4th heat exchanger, is provided with fan part near the side of described second heat exchanger.
Combined supply system the most according to claim 1, it is characterised in that described first compressor is even
The port D of logical described first cross valve, the port C of described first cross valve connect described First Heat Exchanger,
Described First Heat Exchanger connects described 3rd heat exchanger port d, and described 3rd heat exchanger port c connection is described
Second section stream unit, described second section stream unit connects described second heat exchanger, and described second heat exchanger is even
The port E of logical described first cross valve, the port S of described first cross valve connect described first gas-liquid and divide
From device, described first gas-liquid separator connects described first compressor.
Combined supply system the most according to claim 2, it is characterised in that described first refrigeration system
Also including the first stop valve, first throttle parts, described First Heat Exchanger also connects described first stop valve,
Described first stop valve connects described first throttle parts, and described in described first throttle members, the 3rd changes
The port a of hot device, the port b of described 3rd heat exchanger connect described first compressor.
Combined supply system the most according to claim 3, it is characterised in that described second compressor is even
The port D of logical described second cross valve, the port C of described second cross valve connect described 4th heat exchanger,
Described 4th heat exchanger connects described 6th heat exchanger port d, and described 6th heat exchanger port c connection is described
4th throttle part, described 4th throttle part connects described 5th heat exchanger, and described 5th heat exchanger is even
The port E of logical described second cross valve, the port S of described second cross valve connect described second gas-liquid and divide
From device, described second gas-liquid separator connects described second compressor.
Combined supply system the most according to claim 4, it is characterised in that described second refrigeration system
Also include that the second stop valve, the 3rd throttle part, described 4th heat exchanger also connect described second stop valve,
Described second stop valve connects described 3rd throttle part, and described 3rd throttle part connection the described 6th is changed
The port a of hot device, the port b of described 6th heat exchanger connect described second compressor.
Combined supply system the most according to any one of claim 1 to 5, it is characterised in that described
It is provided with Huan Feng district between second heat exchanger and described 4th heat exchanger.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620383897.5U CN205747578U (en) | 2016-04-29 | 2016-04-29 | A kind of combined supply system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620383897.5U CN205747578U (en) | 2016-04-29 | 2016-04-29 | A kind of combined supply system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN205747578U true CN205747578U (en) | 2016-11-30 |
Family
ID=57372818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201620383897.5U Expired - Fee Related CN205747578U (en) | 2016-04-29 | 2016-04-29 | A kind of combined supply system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN205747578U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105865083A (en) * | 2016-04-29 | 2016-08-17 | 广东高而美制冷设备有限公司 | Trigeneration system capable of recovering heat |
-
2016
- 2016-04-29 CN CN201620383897.5U patent/CN205747578U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105865083A (en) * | 2016-04-29 | 2016-08-17 | 广东高而美制冷设备有限公司 | Trigeneration system capable of recovering heat |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103335463B (en) | A kind of pump type heat air cooling air conditioner device subregion functionalization defrost system | |
CN204963286U (en) | Changes in temperature type air conditioning system and single cold mould air conditioning system | |
CN106642789B (en) | Heat source tower heat pump system for realizing comprehensive utilization of solar energy and seasonal soil energy storage | |
JP6886214B1 (en) | Various energy complementary heat pump drying equipment suitable for low temperature conditions | |
CN103925753A (en) | Air conditioning equipment | |
CN103615836B (en) | A kind of screw total heat recovery air-cooled heat-pump air-conditioner group | |
CN105091395A (en) | Cooling and heating type air-conditioner system and single-cooling type air-conditioner system | |
CN205137703U (en) | Air -conditioner | |
CN103353189A (en) | Air-based heat-source tower heat pump for realizing high-efficiency utilization of regenerated heat based on air | |
CN105135739A (en) | Multifunctional heat pump type evaporative condensing air-conditioning unit | |
CN106440578A (en) | Cooling defrosting type wind energy heat pump | |
CN103759468B (en) | A kind of two temperature-heat-source heat pump | |
CN105627470A (en) | Air conditioning unit based on supercooling and reheating | |
CN105865083A (en) | Trigeneration system capable of recovering heat | |
CN205119549U (en) | Multi -functional heat pump type evaporation formula condensation air conditioning unit | |
CN105485958A (en) | Defrosting-free air cooling and water cooling all-in-one machine air source heat pump | |
CN103423815A (en) | Solution-assistant energy-storage domestic air conditioner | |
CN105716324A (en) | Double-heat-source efficient air conditioner system based on compression-injection combination and application | |
CN204115286U (en) | A kind of superposition type directly-heated high temperature heat pump | |
CN205747578U (en) | A kind of combined supply system | |
CN208124664U (en) | A kind of superposition type super low temperature heat pump water chiller-heater unit | |
CN109186119B (en) | Frost-free air source heat pump system device and method for membrane distillation regeneration | |
CN203595316U (en) | Screw rod type total heat recovery air-cooled heat pump air conditioning unit | |
CN102620371A (en) | Evaporative condenser heat pump air-conditioning unit | |
CN108709332A (en) | The big Wen Sheng of antifreezing agent multipaths takes hot air draft source vapor cascade heat pump |
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: 20161130 |