CN208720416U - Superposition type changes in temperature unit - Google Patents
Superposition type changes in temperature unit Download PDFInfo
- Publication number
- CN208720416U CN208720416U CN201821379125.XU CN201821379125U CN208720416U CN 208720416 U CN208720416 U CN 208720416U CN 201821379125 U CN201821379125 U CN 201821379125U CN 208720416 U CN208720416 U CN 208720416U
- Authority
- CN
- China
- Prior art keywords
- temperature level
- low
- temperature
- condenser
- evaporator
- 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.)
- Active
Links
Abstract
The utility model provides a kind of superposition type changes in temperature unit, is related to ultra-low temperature surroundings highly effective heating technical field, solves the technical issues of hot water or hot wind of higher temperature cannot be made for temperature lower winter in air conditioner existing in the prior art.The superposition type changes in temperature unit includes the low-temperature level circulatory system and the high-temperature level circulatory system, the low-temperature level circulatory system includes low-temperature level compressor, low-temperature level evaporator, low-temperature level condenser and first throttling device, the high-temperature level circulatory system includes high-temperature level compressor, high-temperature level condenser, high-temperature level evaporator and second throttling device, low-temperature level condenser is formed with high-temperature level evaporator, and there is the condenser/evaporator or superposition type of low-temperature level condenser and high-temperature level evaporator function to connect, and high-temperature level evaporator can absorb the heat of low-temperature level condenser release.The utility model, which overcomes traditional changes in temperature unit, cannot obtain the defect of high-temperature-hot-water or hot wind.
Description
Technical field
The utility model relates to ultra-low temperature surroundings highly effective heating technical fields, more particularly, to a kind of superposition type air conditioner
Group.
Background technique
With the development of society, the progress of the mankind, people's lives level is also higher and higher.It is single from summer common in the past
Cold air-conditioning is all the witness in epoch to winter dual-purpose cooling-heating integrated machine.Single cold air-conditioning cannot heat so not having work in winter
With.Although and now the common common air conditioner in market can be used in two season of summer in winter in some places, in winter temperature
When lower, especially the northern area in China, the weather temperature in winter are all very low in very long a period of time.So common changes in temperature
Higher temperature hot water or hot wind cannot be made in machine in such a case, and such air conditioner cannot achieve the effect that we want.
Utility model content
The purpose of this utility model is to provide a kind of superposition type changes in temperature units, to solve changes in temperature existing in the prior art
The technical issues of hot water or hot wind of higher temperature cannot be made for temperature lower winter in machine.
To achieve the above object, the utility model provides following technical scheme:
A kind of superposition type changes in temperature unit provided by the utility model, the superposition type changes in temperature unit include low-temperature level cyclic system
System and the high-temperature level circulatory system, the low-temperature level circulatory system include low-temperature level compressor, low-temperature level evaporator, low-temperature level condensation
Device and first throttling device, the high-temperature level circulatory system include high-temperature level compressor, high-temperature level condenser, high-temperature level evaporation
Device and second throttling device, in which: it is connect at the exit of the low-temperature level compressor and the low-temperature level condenser inlet,
The exit of the low-temperature level condenser is connect with the inlet of the low-temperature level evaporator, the outlet of the low-temperature level evaporator
Place connect with the inlet of the low-temperature level compressor, the first throttling device be set to the low-temperature level condenser with it is described
Between low-temperature level evaporator;It is connect at the exit of the high-temperature level compressor and the high-temperature level condenser inlet, the height
The exit of warm grade condenser is connect with the inlet of the high-temperature level evaporator, the exit of the high-temperature level evaporator and institute
The inlet connection of high-temperature level compressor is stated, the second throttling device is set to the high-temperature level condenser and the high-temperature level
Between evaporator;The low-temperature level condenser and the high-temperature level evaporator, which are formed, has the low-temperature level condenser and the height
The condenser/evaporator or superposition type of warm grade evaporator function connect, and to absorb the low-temperature level cold for the high-temperature level evaporator
The heat of condenser release.
Preferably, the low-temperature level circulatory system further includes the first gas-liquid separator, the first gas-liquid separator setting
In the inlet of the low-temperature level compressor.
Preferably, the low-temperature level circulatory system further includes four-way valve, and the four-way valve includes first interface, second connects again
Mouthful, third interface and the 4th interface, the first interface connects the low-temperature level compressor, described in the second interface connection
Low-temperature level condenser, the third interface are connected to the low-temperature level evaporator, and the 4th interface is connected to first gas
Liquid/gas separator.
Preferably, economizer is set between the first throttling device and the low-temperature level condenser, and the low-temperature level is cold
Condenser is divided into two, and a branch is directly connected with a passage inlet of the economizer, and an access of the economizer goes out
Mouth connects the first throttling device;Another branch connects after connecing the bypass throttle valve of the economizer with the low-pressure stage compressor
It connects.
Preferably, the low-temperature level circulatory system further includes defrost solenoid valve, and the defrost solenoid valve is set to described low
Between the exit and the first throttling device of warm grade compressor.
Preferably, first filter is set between the first throttling device and the low-temperature level evaporator, described first
Filter both ends are connect with the first throttling device and the low-temperature level evaporator respectively.
Preferably, liquid storage device is set between the first throttling device and the low-temperature level condenser, the liquid storage device
Inlet is connect with the low-temperature level condenser, and the liquid outlet of the liquid storage device is connect with the first throttling device.
Preferably, the high-temperature level circulatory system further includes the second gas-liquid separator, the second gas-liquid separator setting
In the inlet of the high-temperature level compressor.
Preferably, it is respectively provided with the second filter on the second throttling device inlet pipeline and outlet conduit, described second
Filter both ends are connect with the second throttling device and the high-temperature level evaporator respectively.
Preferably, the high-temperature level condenser also sets up water inlet and/or air inlet and water outlet and/or air outlet.
A kind of superposition type changes in temperature unit provided by the utility model compared with the existing technology has following technical effect that
By making between low-temperature level condenser and high-temperature level evaporator between low-temperature circulating system and the high-temperature level circulatory system
Superposition type connection or formed have low-temperature level condenser and high-temperature level evaporator function condenser/evaporator, realize lower
Be made under temperature environment the function of the hot water of higher temperature perhaps hot wind with the traditional exclusive use low-temperature level circulatory system or
It is that the high-temperature level circulatory system is compared, the high-temperature level evaporator of the utility model can absorb the heat of low-temperature level condenser releasing,
Or the condenser/evaporator as high-temperature level evaporator can absorb heat, the refrigerant of the high-temperature level circulatory system will at the same time
Heat is brought into high-temperature level condenser from condenser/evaporator or high-temperature evaporator via high-temperature level compressor, and with heat exchange
Mode transfer heat to water perhaps wind to obtain high-temperature-hot-water or hot wind.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of the superposition type changes in temperature unit of embodiment of the utility model.
In figure: 100, the low-temperature level circulatory system;101, low-temperature level compressor;102, low-temperature level evaporator;103, low-temperature level
Condenser;104, first throttling device;105, the first gas-liquid separator;106, four-way valve;1061, first interface;1062, second
Interface;1063, third interface;1064, the 4th interface;107, economizer;108, defrost solenoid valve;109, first filter;
110, liquid storage device;200, the high-temperature level circulatory system;201, high-temperature level compressor;202, high-temperature level condenser;203, the second throttling
Device;204, high-temperature level evaporator;205, the second gas-liquid separator;206, the second filter;301, water inlet;302, it is discharged
Mouthful.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
In the description of the present invention, it should be understood that term " center ", " length ", " width ", " height ",
The instructions such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " side "
Orientation or positional relationship is to be merely for convenience of description the utility model and letter based on attached orientation or positional relationship shown in FIG. 1
Change description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with specific orientation construct and
Operation, therefore should not be understood as limiting the present invention.In the description of the present invention, unless otherwise indicated, " more
It is a " it is meant that two or more.
Embodiment 1:
Fig. 1 is a kind of structural schematic diagram of the superposition type changes in temperature unit of embodiment of the utility model, as shown in Figure 1, this reality
With a kind of superposition type changes in temperature unit of novel offer, superposition type changes in temperature unit includes that the low-temperature level circulatory system 100 and high-temperature level are followed
Loop system 200, the low-temperature level circulatory system 100 and the difference of the high-temperature level circulatory system 200 are: the low-temperature level circulatory system 100
Condensation temperature is lower than the condensation temperature of the high-temperature level circulatory system, thus the maximum water temperature of the low-temperature level circulatory system 100
Maximum water temperature than the high-temperature level circulatory system 200 is low, in the present embodiment, during the low-temperature level circulatory system 100 is produced
The maximum water temperature of warm water is 55 DEG C, and the maximum water temperature for the high-temperature-hot-water that the high-temperature level circulatory system 200 is produced is 85
℃。
The low-temperature level circulatory system 100 includes low-temperature level compressor 101, low-temperature level evaporator 102, low-temperature level condenser 103
And first throttling device 104, the high-temperature level circulatory system include high-temperature level compressor 201, high-temperature level condenser 202, high-temperature level
Evaporator 204 and second throttling device 203, the exit and 103 inlet of low-temperature level condenser of low-temperature level compressor 101 connect
It connects, the exit of low-temperature level condenser 103 is connect with the inlet of low-temperature level evaporator 102, the outlet of low-temperature level evaporator 102
Place is connect with the inlet of low-temperature level compressor 101, and first throttling device 104 is set to low-temperature level condenser 103 and low-temperature level
Between evaporator 102;The exit of high-temperature level compressor 201 is connect with 202 inlet of high-temperature level condenser, high-temperature level condenser
202 exit is connect with the inlet of high-temperature level evaporator 204, and the exit of high-temperature level evaporator 204 and high-temperature level are compressed
The inlet of machine 201 connects, and second throttling device 203 is set between high-temperature level condenser 202 and high-temperature level evaporator 204.
Low-temperature level condenser 103 is connect with 204 superposition type of high-temperature level evaporator, and high-temperature level evaporator 204 can absorb it is low
The heat that warm grade condenser 103 discharges, or not individually using between low-temperature level condenser 103 and high-temperature level evaporator 204
Superposition type connection, but the condenser/evaporator for being formed and there is 204 function of low-temperature level condenser 103 and high-temperature level evaporator is used,
As long as the condenser of the low-temperature level circulatory system 100 can transfer heat to the evaporator of the high-temperature level circulatory system 200 all at this
Within the protection scope of utility model.
Since low-temperature level evaporator 102, low-temperature level condenser 103 are low with capable of effectively utilizing for high-temperature level evaporator 204
The warm grade circulatory system 100 absorbs external heat, and it is more to be then released to high-temperature level evaporator 204 by low-temperature level condenser 103
Heat, high-temperature level evaporator 204 transfers heat to high-temperature level condenser 202 by high-temperature level compressor 201, even if low-temperature level
Evaporator 102 is placed in lower temperature environment, such as low-temperature level evaporator 102 is placed in subzero 30 DEG C of environment temperature lowest order,
High-temperature level condenser 202 can also release more heat, so that the high-temperature-hot-water or hot wind of required temperature are obtained, such as
The temperature of hot water can achieve 85 DEG C.
Meanwhile when the high-temperature level circulatory system 200 is closed, water inlet 301 and water outlet is arranged in low-temperature level condenser 103
Mouth 302, the low-temperature level circulatory system 100 can be carried out independently prepared middle warm water;Or low-temperature level condenser 103 be arranged air inlet with
And air outlet, the low-temperature level circulatory system 100 can be carried out independently prepared hot wind, effectively widen the utility model superposition type air conditioner
The practicability of group.
As a kind of preferred embodiment of the present embodiment, lubrication or damage are destroyed in order to avoid liquid refrigerant enters compressor
Bad scroll plate, the low-temperature level circulatory system 100 further include the first gas-liquid separator 105, and the first gas-liquid separator 105 is set to low temperature
The inlet of grade compressor 101, the first gas-liquid separator 105 is the refrigerant for returning to compressor from low-temperature level evaporator 102
It is separated into gas or liquid, can also temporarily store extra refrigerant liquid, it is therefore prevented that excess refrigerant flows to compressor
Crankcase causes the dilution of oil.
As a kind of preferred embodiment of the present embodiment, freeze to change flow direction realization of the refrigerant in system pipeline,
Mutual conversion between heating, the low-temperature level circulatory system 100 further include four-way valve 106, and four-way valve 106 includes first interface again
1061, second interface 1062, third interface 1063 and the 4th interface 1064, first interface 1061 connect low-temperature level compressor
101, second interface 1062 connects low-temperature level condenser 103, and third interface 1063 is connected to low-temperature level evaporator 102, and the 4th connects
Mouth 1064 is connected to the first gas-liquid separator 105.
As a kind of preferred embodiment of the present embodiment, the high pressure liquid refrigerant from low-temperature level condenser 103 is entering
It is divided into two parts after economizer 107, a part is further cooled down in a manner of heat expansion by throttling, goes to reduce another
The temperature of a part, enables its supercooling, this subcooled liquid settled out is by supplying valve directly into evaporator refrigeration.And it is another
The uncooled gaseous refrigerant in part passes through the connecting pipe of economizer 107 and compressor, reenters compressor and continues to compress,
Into circulation.It stablizes liquid refrigerant by way of swell refrigeration, to improve the capacity and efficiency of changes in temperature unit.
As a kind of preferred embodiment of the present embodiment, the defrosting of the low-temperature level circulatory system 100 uses hot-gas bypass defrost skill
Art, when the low-temperature level circulatory system 100 reaches defrosting condition, defrost solenoid valve 108 is opened, the low-temperature refrigerant gas of high temperature and pressure
Body directly enters low-temperature level evaporator 102 from the exhaust outlet of low-temperature level compressor 101 and carries out defrost.The defrost formal system is steady
Fixed work, does not interfere with the normal operation of high temperature heat pump system.
As a kind of preferred embodiment of the present embodiment, pipeline blockage in order to prevent, and refrigerant is allowed to pass through, it will be other different
Object and moisture filter fall, and first filter 109, the first filtering are arranged between first throttling device 104 and low-temperature level evaporator 102
109 both ends of device are connect with first throttling device 104 and low-temperature level evaporator 102 respectively.
As a kind of preferred embodiment of the present embodiment, storage is set between first throttling device 104 and low-temperature level condenser 103
The inlet of liquid device 110, liquid storage device 110 is connect with low-temperature level condenser 103, and the liquid outlet and first throttle of liquid storage device 110 fill
Set 104 connections.
Embodiment 2:
For the present embodiment on the basis of the superposition type changes in temperature unit of embodiment 1, the high-temperature level circulatory system 200 includes the second gas-liquid
Separator 205, the second gas-liquid separator 205 are set to the inlet of high-temperature level compressor 201, the second gas-liquid separator 205
It is all to prevent from liquid refrigerant from entering compressor to destroy lubrication or damage as acting on the effect with the first gas-liquid separator 105
Bad scroll plate.
As a kind of preferred embodiment of the present embodiment, is arranged between second throttling device 203 and high-temperature level evaporator 204
Tow filtrator 206,206 both ends of the second filter are connect with second throttling device 203 and high-temperature level evaporator 204 respectively, and second
The effect of filter 206 is all to prevent pipeline blockage, and refrigerant is allowed to pass through as with first filter 109, will be other different
Object and moisture filter fall.
As a kind of preferred embodiment of the present embodiment, high-temperature level condenser 202 also sets up water inlet 301 and/or air inlet
Mouth and water outlet 302 and/or air outlet, to realize that the high-temperature level circulatory system prepares the hot water or hot wind of higher temperature.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of superposition type changes in temperature unit, which is characterized in that the superposition type changes in temperature unit includes the low-temperature level circulatory system (100)
With the high-temperature level circulatory system (200), the low-temperature level circulatory system (100) includes low-temperature level compressor (101), low-temperature level evaporation
Device (102), low-temperature level condenser (103) and first throttling device (104), the high-temperature level circulatory system include high-temperature level pressure
Contracting machine (201), high-temperature level condenser (202), high-temperature level evaporator (204) and second throttling device (203), in which:
The exit of the low-temperature level compressor (101) is connect with low-temperature level condenser (103) inlet, the low-temperature level
The exit of condenser (103) is connect with the inlet of the low-temperature level evaporator (102), the low-temperature level evaporator (102)
Exit connect with the inlet of the low-temperature level compressor (101), the first throttling device (104) is set to described low
Between warm grade condenser (103) and the low-temperature level evaporator (102);
The exit of the high-temperature level compressor (201) is connect with high-temperature level condenser (202) inlet, the high-temperature level
The exit of condenser (202) is connect with the inlet of the high-temperature level evaporator (204), the high-temperature level evaporator (204)
Exit connect with the inlet of the high-temperature level compressor (201), the second throttling device (203) is set to the height
Between warm grade condenser (202) and the high-temperature level evaporator (204);
The low-temperature level condenser (103) and the high-temperature level evaporator (204), which are formed, has the low-temperature level condenser (103)
It is connected with the condenser/evaporator of high-temperature level evaporator (204) function or superposition type, and the high-temperature level evaporator (204)
The heat of low-temperature level condenser (103) release can be absorbed.
2. a kind of superposition type changes in temperature unit according to claim 1, which is characterized in that the low-temperature level circulatory system
It (100) further include the first gas-liquid separator (105), first gas-liquid separator (105) is set to the low-temperature level compressor
(101) inlet.
3. a kind of superposition type changes in temperature unit according to claim 2, which is characterized in that the low-temperature level circulatory system
It (100) further include four-way valve (106), the four-way valve (106) includes first interface (1061), second interface (1062), the again
Three interfaces (1063) and the 4th interface (1064), the first interface (1061) connect the low-temperature level compressor (101), institute
It states second interface (1062) and connects the low-temperature level condenser (103), the third interface (1063) is connected to the low-temperature level
Evaporator (102), the 4th interface (1064) are connected to first gas-liquid separator (105).
4. a kind of superposition type changes in temperature unit according to claim 1, which is characterized in that the first throttling device (104)
Economizer (107) are set between the low-temperature level condenser (103), the low-temperature level condenser (103) is divided into two, one
Branch is directly connected with a passage inlet of the economizer (107), and a lane exit of the economizer (107) connects described
First throttling device (104);Another branch connect after the bypass throttle valve of the economizer (107) with the low-temperature level compressor
(101) it connects.
5. a kind of superposition type changes in temperature unit according to claim 1, which is characterized in that the low-temperature level circulatory system
It (100) further include defrost solenoid valve (108), the defrost solenoid valve (108) is set to going out for the low-temperature level compressor (101)
At mouthful between the first throttling device (104).
6. a kind of superposition type changes in temperature unit according to claim 1, which is characterized in that the first throttling device (104)
Between the low-temperature level evaporator (102) be arranged first filter (109), first filter (109) both ends respectively with
The first throttling device (104) and the low-temperature level evaporator (102) connection.
7. a kind of superposition type changes in temperature unit according to claim 1, which is characterized in that the first throttling device (104)
Liquid storage device (110) are set between the low-temperature level condenser (103), the inlet and the low temperature of the liquid storage device (110)
Grade condenser (103) connects, and the liquid outlet of the liquid storage device (110) is connect with the first throttling device (104).
8. any a kind of superposition type changes in temperature unit according to claim 1~7, which is characterized in that the high-temperature level circulation
System (200) further includes the second gas-liquid separator (205), and second gas-liquid separator (205) is set to the high-temperature level pressure
The inlet of contracting machine (201).
9. a kind of superposition type changes in temperature unit according to claim 8, which is characterized in that the second throttling device (203)
It is respectively provided on inlet pipeline and outlet conduit the second filter (206), the second filter (206) both ends are respectively with described
Two throttling sets (203) and the high-temperature level evaporator (204) connection.
10. a kind of superposition type changes in temperature unit according to claim 9, which is characterized in that the high-temperature level condenser (202)
Also set up water inlet (301) and/or air inlet and water outlet (302) and/or air outlet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821379125.XU CN208720416U (en) | 2018-08-23 | 2018-08-23 | Superposition type changes in temperature unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821379125.XU CN208720416U (en) | 2018-08-23 | 2018-08-23 | Superposition type changes in temperature unit |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208720416U true CN208720416U (en) | 2019-04-09 |
Family
ID=65979502
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201821379125.XU Active CN208720416U (en) | 2018-08-23 | 2018-08-23 | Superposition type changes in temperature unit |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208720416U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111174388A (en) * | 2020-01-03 | 2020-05-19 | 珠海格力电器股份有限公司 | Operation control method and device, storage medium and multi-split system |
-
2018
- 2018-08-23 CN CN201821379125.XU patent/CN208720416U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111174388A (en) * | 2020-01-03 | 2020-05-19 | 珠海格力电器股份有限公司 | Operation control method and device, storage medium and multi-split system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN201885478U (en) | Low temperature type air source heat pump unit | |
CN104296413A (en) | Variable frequency low-temperature strong heat air conditioner system | |
CN103175344A (en) | Cold-region used multi-connected heat pump system and control method thereof | |
CN204154013U (en) | A kind of frequency conversion low temperature heat-flash air-conditioning system | |
CN201387176Y (en) | Low-temperature enthalpy-increasing type air conditioner or heat pump water heater | |
CN108759143A (en) | A kind of special cascade superhigh temperature hot water air source heat pump system | |
CN108759142A (en) | A kind of special overlapping air source high-temperature heat pump cooling/warming system | |
CN2879058Y (en) | New hot pump air conditioning system with air-filling circuit | |
CN110160301A (en) | A kind of artificial ice stadium system of carbon dioxide refrigeration working medium | |
CN206488508U (en) | Head phase-transition heat-storage frost removal type low-temperature air source heat pump unit | |
CN106225280A (en) | A kind of refrigeration or heat pump and a kind of Condensing units | |
CN111811166A (en) | Take trigeminy of heat recovery to supply heat pump set | |
CN208901671U (en) | A kind of low-temperature air source heat pump unit | |
CN206018879U (en) | Heat pump and on-board air conditioner | |
CN208580945U (en) | A kind of laser dual temperature double water tank cooling-water machine | |
CN207146975U (en) | Heat-reclamation multi-compressors air-conditioning system | |
CN208205490U (en) | A kind of ultra-low temperature air source heat pump based on single machine compression with double stage machine | |
CN208720416U (en) | Superposition type changes in temperature unit | |
CN204063660U (en) | Three stage compression autocascade cycle heat pump | |
CN110030765A (en) | A kind of dry heating cooling supply composite system | |
CN109059335A (en) | A kind of low-temperature air source heat pump unit | |
CN211552133U (en) | High-efficiency energy-saving refrigeration heating temperature control system | |
CN209371555U (en) | Ultra low temperature overlapping heat pump unit | |
CN202581632U (en) | Heat-pump air conditioning unit of evaporating type condenser | |
CN206410354U (en) | A kind of air-conditioning and air conditioner heat pump system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |