CN107631389B - Based on the regenerated air cleaning system of air-conditioning condensation heat recovery and its operation method - Google Patents
Based on the regenerated air cleaning system of air-conditioning condensation heat recovery and its operation method Download PDFInfo
- Publication number
- CN107631389B CN107631389B CN201710787893.2A CN201710787893A CN107631389B CN 107631389 B CN107631389 B CN 107631389B CN 201710787893 A CN201710787893 A CN 201710787893A CN 107631389 B CN107631389 B CN 107631389B
- Authority
- CN
- China
- Prior art keywords
- air
- heat exchanger
- valve
- air cleaning
- outdoor
- 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 invention discloses one kind to be based on the regenerated air cleaning system of air-conditioning condensation heat recovery and its operation method.The system includes compressor, air cleaning heat exchanger, outdoor fin-tube type heat exchanger, indoor fin-tube type heat exchanger, restricting element, four-way reversing valve, electric check valve, blower, air-valve and purification air duct.The present invention increases air cleaning part on the basis of normal domestic use air-conditioning, and in the air cleaning stage, the suction-operated of the VOCs and methyl aldehyde adsorption material that are coated with by air cleaning heat exchanger surface carry out purified treatment to air is flowed through；In regeneration stage, heat needed for adsorbent material desorbs process is provided using the condensation waste heat of air-conditioning, and air is drained into outdoor.The present invention is able to achieve the duration absorption to indoor VOCs and formaldehyde, improves indoor air quality；Air conditioner condensation waste heat regenerative adsorption material is efficiently used, achievees the effect that recycling, and save system energy consumption；Regenerative process can take a breath to interior while exhaust, have both the effect for improving room air freshness.
Description
Technical field
The present invention relates to technical field of air purification, more particularly to one kind are net based on the regenerated air of air-conditioning condensation heat recovery
Change system and its operation method.
Background technique
The time that all one's life of people has more than 80% lives indoors, therefore indoor air quality will produce the quality of the life of people
Raw larger impact.Lower indoor air quality will reduce labor efficiency, or even endanger occupant's health, generate a series of build
Build association disease, such as allergic rhinitis, hylactic pneumonia, asthma.In the pernicious gas for influencing indoor air quality, volatilization
Property organic compound (VOCs) and formaldehyde account for very big specific gravity.
In current indoor purification techniques, since adsorbent material has, cost is relatively low, the advantages such as no harmful side product, in market
In be widely used.However since adsorbent material adsorbance is limited, currently marketed product is all made of the side of replacement adsorbent material
Method solves the problems, such as adsorption saturation, this makes absorption potential clarifier that must frequently replace adsorbent material, increases operating cost.And if adsorbing
Material is not replaced, will be unable to the effect for playing air cleaning.Therefore urgent need to resolve adsorbent material is saturated this key
Problem.
In conventional domestic air-conditioning system, the condensation heat in outdoor fin-tube type heat exchanger is led to directly in the form of waste heat
It crosses blower and drains into outdoor, this partial heat is not utilized well.And wherein the delivery temperature of compressor outlet is higher,
The temperature can partly or entirely regenerate adsorbent material, so that adsorbent material is recycled.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies of the prior art and provide, a kind of energy consumption is lower, is based on air-conditioning condensation heat recovery
Regenerated air cleaning system.
The present invention is quasi- to be achieved the object of the present invention with following technical solution:
Based on the regenerated air cleaning system of air-conditioning condensation heat recovery comprising compressor, the first electric check valve, air
Purify heat exchanger, the second electric check valve, four-way reversing valve, outdoor fin-tube type heat exchanger, restricting element, indoor tube fin type heat exchange
Device, purification fan, outdoor fan, indoor fan, air draft air-valve, air-supply air-valve and purification air duct；The air cleaning heat exchanger
It is to be obtained by the way that VOCs and formaldehyde solid adsorption material are coated in conventional finned tube heat exchanger fin surface；
The air cleaning system includes refrigerant flow circuit, purified air stream journey, air conditioner indoor unit air flow and is
System waste air process；
The connection type of refrigerant flow circuit are as follows: the outlet of the compressor and first electric check valve and described second
The entrance of electric check valve is connected, and the entrance of the compressor is connected with an interface of the four-way reversing valve, and described first
The outlet of electric check valve is connected with the entrance of the air cleaning heat exchanger, the outlet of the air cleaning heat exchanger with it is described
The outlet of second electric check valve is connected, and is connected later with an interface of the four-way reversing valve, the four-way reversing valve
Other two interface is connected respectively at the outdoor fin-tube type heat exchanger entrance with indoor fin-tube type heat exchanger outlet, the outdoor
The outlet of fin-tube type heat exchanger is connected with the entrance of the restricting element, the outlet of the restricting element and the indoor fin-tube type
The entrance of heat exchanger is connected；
The connection type of purified air stream journey are as follows: room air enters institute in the purification air duct after purification fan
Air cleaning heat exchanger is stated, drain into outdoor by the air draft air-valve later or is sent by the air-supply air-valve indoor；
The connection type of air conditioner indoor unit air flow are as follows: room air after the indoor fin-tube type heat exchanger, by
The indoor fan is sent into indoor；
The connection type of system outdoor unit air flow are as follows: outdoor air after the outdoor fin-tube type heat exchanger, by
The outdoor fan is sent into outdoor.
Preferably, the solid adsorption material includes but is not limited to silica gel, diatom, active carbon, activated alumina.
Preferably, the copper pipe entrance of the air cleaning heat exchanger by after first electric check valve with it is described
Compressor outlet is connected；After the air cleaning heat exchanger surface adsorbent material adsorption saturation, regneration of adsorbent material process institute
Condensation waste heat of the heat needed from air-conditioning system.
Preferably, the air cleaning air duct is mounted on indoor wall, and logical by air duct and outdoor.
Another object of the present invention is to provide a kind of air cleaning operation sides using system described in above-mentioned any one
Method comprising air purification method, regneration of adsorbent material method and domestic air conditioning operation method；
The wherein air purification method are as follows:
System closes first electric check valve and the air draft air-valve, opens second electric check valve, described
Purification fan and the air-supply air-valve；When room air flows through the air cleaning heat exchanger, due to the VOCs of its surface coating
And the suction-operated of the solid adsorption material of formaldehyde, the harmful substance in air are removed, and reach clean-up effect；Purified sky
Gas is sent into interior by the air-supply air-valve, achievees the effect that purify air；
The wherein regneration of adsorbent material method are as follows:
After the adsorbent material adsorption saturation of the air cleaning heat exchanger surface, system opens described first electronic section
Only valve, the purification fan and the air draft air-valve close second electric check valve and the air-supply air-valve；The compression
The refrigerant gas that machine exports high temperature and pressure enters the air cleaning heat exchanger by the pipe side of the air cleaning heat exchanger,
Its adsorption material recovery process institute calorific requirement is provided；Room air is taken away and is desorbed after the air cleaning heat exchanger
Harmful substance, the exhaust gas in regenerative process drains into outdoor by the air draft air-valve.
Preferably, the air purification method and the regneration of adsorbent material method replace according to certain period
It carries out, air cleaning time and regneration of adsorbent material time determine according to specific material property, using constant or with total operation
Duration increases the amount for considering changes in material properties and changing；The circulation adsorbed and desorbed by material carries out, and guarantees adsorbent material
Absorption property, realize air-cleaning function, improve indoor air quality.
Compared with prior art, of the present invention a kind of based on the regenerated air cleaning system tool of air-conditioning condensation heat recovery
Some advantages are:
First, the present invention increases air cleaning part on the basis of normal domestic use air-conditioning, can be to indoor volatility
Organic matter (VOCs) and formaldehyde carry out purified treatment, improve indoor air quality.
Second, the present invention in the adsorbent material of VOCs and formaldehyde can be regenerated under the action of air conditioner condensation heat so that absorption
Material can be recycled, and increase the service life of material, reduce operating cost.
Third, the heat source that uses of regneration of adsorbent material process is air conditioner condensation waste heat in the present invention, is thrown without other energy
Enter, energy conservation and environmental protection.
It is described further below with reference to technical effect of the attached drawing to design of the invention, specific structure and generation, with
Adequately understand the purpose of the present invention, feature and effect.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram based on the regenerated air cleaning system of air-conditioning condensation heat recovery of the present invention.
In figure: compressor 1, the first electric check valve 2, air cleaning heat exchanger 3, the second electric check valve 4, four-way commutation
Valve 5, outdoor fin-tube type heat exchanger 6, restricting element 7, indoor fin-tube type heat exchanger 8, purification fan 9, outdoor fan 10, indoor wind
Machine 11, air draft air-valve 12, air-supply air-valve 13 and purification air duct 14.
Specific embodiment
A preferred embodiment of the invention provides one kind and is based on the regenerated air cleaning system of air-conditioning condensation heat recovery,
As shown in Figure 1, being changed including compressor 1, the first electric check valve 2, air cleaning heat exchanger 3, the second electric check valve 4, four-way
To valve 5, outdoor fin-tube type heat exchanger 6, restricting element 7, indoor fin-tube type heat exchanger 8, purification fan 9, outdoor fan 10, interior
Blower 11, air draft air-valve 12, air-supply air-valve 13 and purification air duct 14；
It further include refrigerant flow circuit, purified air stream journey, sky based on the regenerated air cleaning system of air-conditioning condensation heat recovery
Adjust indoor unit air flow and system outdoor unit air flow；
The connection type of refrigerant flow circuit are as follows: the outlet of the compressor 1 and first electric check valve 2 and described the
The entrance of two electric check valves 4 is connected, and the entrance of the compressor 1 is connected with an interface of the four-way reversing valve 5, described
The outlet of first electric check valve 2 is connected with the entrance of the air cleaning heat exchanger 3, and the air cleaning heat exchanger 3 goes out
Mouth is connected with the outlet of second electric check valve 4, is connected later with an interface of the four-way reversing valve 5, and described four
Other two interface of logical reversal valve 5 is exported respectively at outdoor 6 entrance of fin-tube type heat exchanger and indoor fin-tube type heat exchanger 8
It is connected, the outlet of the outdoor fin-tube type heat exchanger 6 is connected with the entrance of the restricting element 7, the outlet of the restricting element 7
It is connected with the entrance of the indoor fin-tube type heat exchanger 8；
The connection type of purified air stream journey are as follows: room air is laggard by purification fan 9 in the purification air duct 14
Enter the air cleaning heat exchanger 3, drain into outdoor by the air draft air-valve 12 later or is sent by the air-supply air-valve 13
It is indoor；
The connection type of air conditioner indoor unit air flow are as follows: room air after the indoor fin-tube type heat exchanger 8, by
The indoor fan 11 is sent into interior；
The connection type of system outdoor unit air flow are as follows: outdoor air after the outdoor fin-tube type heat exchanger 6, by
The outdoor fan 10 is sent into outdoor.
One kind of the present embodiment is based in the regenerated air cleaning system of air-conditioning condensation heat recovery, the air cleaning heat exchange
Device 3 is prepared by the way that VOCs and formaldehyde solid adsorption material are coated in conventional finned tube heat exchanger fin surface.
The purification process of air is realized in suction-operated by surfacing to VOCs and formaldehyde.
One kind of the present embodiment is based in the regenerated air cleaning system of air-conditioning condensation heat recovery, the air cleaning heat exchange
The copper pipe entrance of device 3 is connected after first electric check valve 2 with the compressor 1 outlet.The air cleaning is changed
After hot 3 adsorption material adsorption saturation of device, condensation of the heat needed for regneration of adsorbent material process from air-conditioning system
Waste heat.
One kind of the present embodiment is based in the regenerated air cleaning system of air-conditioning condensation heat recovery, the air cleaning air duct
The air-supply air-valve 13 in room can be sent into air after purification and can be immediately discharged to exhaust gas in regenerative process by containing in 14
The outdoor air draft air-valve 12.The air cleaning air duct 14 is mounted on indoor wall, and logical by air duct and outdoor.
The present embodiment additionally provides a kind of operation method based on the regenerated air cleaning system of air-conditioning condensation heat recovery, adds
The function except VOCs and its automatic regeneration is added, user can control by Air-Conditioning Control Panel, have strength to remove, is general
Three ranks such as removal and intelligence removal.Strength removal refers to that purification fan is always maintained at high air quantity operation, and general removal refers to
The air quantity that intermittently works is lower, and intelligence removal is to optimize the operation of purification system according to local zone time and runing time etc..Packet
Include air purification method, regneration of adsorbent material method and domestic air conditioning operation method；
The air purification method of the present embodiment are as follows:
System closing first electric check valve 2 and the air draft air-valve 12, opening second electric check valve 4,
The purification fan 9 and the air-supply air-valve 13.When room air flows through the air cleaning heat exchanger 3, since its surface applies
The suction-operated of the solid adsorption material of deposited VOCs and formaldehyde, the harmful substances such as VOCs and formaldehyde in air are removed, reach
To clean-up effect.Purified air is sent into interior by the air-supply air-valve 13, achievees the effect that purify air；
The regneration of adsorbent material method of the present embodiment are as follows:
After the adsorbent material adsorption saturation on 3 surface of air cleaning heat exchanger, it is electronic that system opens described first
Shut-off valve 2, the purification fan 9 and the air draft air-valve 12 close second electric check valve 4 and the air-supply air-valve
13.The refrigerant gas that the compressor 1 exports high temperature and pressure enters the sky by the pipe side of the air cleaning heat exchanger 3
Gas purifies heat exchanger 3, provides its adsorption material recovery process institute calorific requirement.Room air exchanges heat by the air cleaning
3 after device, the harmful substances such as the VOCs desorbed and formaldehyde are taken away, the exhaust gas in regenerative process drains into room by the air draft air-valve 12
Outside；
The domestic air conditioning operation method of the present embodiment is identical as conventional domestic air conditioning operation method, is not repeating.
The regneration of adsorbent material method of the air purification method of the present embodiment and this example according to certain period alternately into
Row, air cleaning time and regneration of adsorbent material time determine according to specific material property, can be constant, be also possible to
Total operation duration increases the amount for considering changes in material properties and changing.The circulation adsorbed and desorbed by material carries out, and guarantees to inhale
The absorption property of enclosure material realizes air-cleaning function, improves indoor air quality.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the scope of protection of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
It is quasi-.
Claims (4)
1. a kind of air cleaning operation method based on the regenerated air cleaning system of air-conditioning condensation heat recovery, which is characterized in that
The air cleaning system includes compressor (1), the first electric check valve (2), air cleaning heat exchanger (3), second electronic
Shut-off valve (4), four-way reversing valve (5), outdoor fin-tube type heat exchanger (6), restricting element (7), indoor fin-tube type heat exchanger (8),
Purification fan (9), outdoor fan (10), indoor fan (11), air draft air-valve (12), air-supply air-valve (13) and purification air duct
(14)；The air cleaning heat exchanger (3) is by changing VOCs and formaldehyde solid adsorption material coated in conventional finned tube
What hot device fin surface obtained；
The air cleaning system includes refrigerant flow circuit, purified air stream journey, air conditioner indoor unit air flow and system chambers
Outer machine air flow；
The connection type of refrigerant flow circuit are as follows: the outlet of the compressor (1) and first electric check valve (2) and described the
The entrance of two electric check valves (4) is connected, an interface phase of the entrance and the four-way reversing valve (5) of the compressor (1)
Even, the outlet of first electric check valve (2) is connected with the entrance of the air cleaning heat exchanger (3), the air cleaning
The outlet of heat exchanger (3) is connected with the outlet of second electric check valve (4), later with the one of the four-way reversing valve (5)
A interface is connected, other two interface of the four-way reversing valve (5) respectively at outdoor fin-tube type heat exchanger (6) entrance and
Indoor fin-tube type heat exchanger (8) outlet is connected, outlet and the restricting element (7) of the outdoor fin-tube type heat exchanger (6)
Entrance is connected, and the outlet of the restricting element (7) is connected with the entrance of the indoor fin-tube type heat exchanger (8)；
The connection type of purified air stream journey are as follows: room air is laggard by purification fan (9) in the purification air duct (14)
Enter the air cleaning heat exchanger (3), drain into outdoor by the air draft air-valve (12) later or passes through the air-supply air-valve
(13) it is sent into indoor；
The connection type of air conditioner indoor unit air flow are as follows: room air is after the indoor fin-tube type heat exchanger (8), by institute
It states indoor fan (11) and is sent into interior；
The connection type of system outdoor unit air flow are as follows: outdoor air is after the outdoor fin-tube type heat exchanger (6), by institute
It states outdoor fan (10) and is sent into outdoor；
The copper pipe entrance of the air cleaning heat exchanger (3) by after first electric check valve (2) with the compressor
(1) outlet is connected；After air cleaning heat exchanger (3) the adsorption material adsorption saturation, regneration of adsorbent material process institute
Condensation waste heat of the heat needed from air-conditioning system；
The air cleaning operation method includes air purification method, regneration of adsorbent material method and domestic air conditioning operation method；
The wherein air purification method are as follows:
System closes first electric check valve (2) and the air draft air-valve (12), opens second electric check valve
(4), the purification fan (9) and the air-supply air-valve (13)；When room air flows through air cleaning heat exchanger (3), by
Harmful substance in the suction-operated of the solid adsorption material of the VOCs and formaldehyde of its surface coating, air is removed, and is reached
Clean-up effect；Purified air is sent into interior by the air-supply air-valve (13), achievees the effect that purify air；
The wherein regneration of adsorbent material method are as follows:
After the adsorbent material adsorption saturation on air cleaning heat exchanger (3) surface, system opens described first electronic section
Only valve (2), the purification fan (9) and the air draft air-valve (12) close second electric check valve (4) and the air-supply
Air-valve (13)；The pipe side that the refrigerant gas of compressor (1) outlet high temperature and pressure passes through the air cleaning heat exchanger (3)
Into the air cleaning heat exchanger (3), its adsorption material recovery process institute calorific requirement is provided；Described in room air passes through
After air cleaning heat exchanger (3), the harmful substance desorbed is taken away, the exhaust gas in regenerative process is arranged by the air draft air-valve (12)
To outdoor.
2. air cleaning operation method according to claim 1, which is characterized in that the solid adsorption material includes silicon
Glue, diatom, active carbon, activated alumina.
3. air cleaning operation method according to claim 1, which is characterized in that the purification air duct (14) is mounted on room
In interior walls, and it is logical by air duct and outdoor.
4. air cleaning operation method according to claim 1, which is characterized in that the air purification method and described
Regneration of adsorbent material method according to certain period alternately, air cleaning time and regneration of adsorbent material time are according to tool
Body material property determines, increases the amount for considering changes in material properties and changing using constant or with total operation duration；Pass through material
The circulation of material absorption and desorption carries out, and guarantees the absorption property of adsorbent material, realizes air-cleaning function, improves room air product
Matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710787893.2A CN107631389B (en) | 2017-09-04 | 2017-09-04 | Based on the regenerated air cleaning system of air-conditioning condensation heat recovery and its operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710787893.2A CN107631389B (en) | 2017-09-04 | 2017-09-04 | Based on the regenerated air cleaning system of air-conditioning condensation heat recovery and its operation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107631389A CN107631389A (en) | 2018-01-26 |
| CN107631389B true CN107631389B (en) | 2019-09-10 |
Family
ID=61099852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710787893.2A Active CN107631389B (en) | 2017-09-04 | 2017-09-04 | Based on the regenerated air cleaning system of air-conditioning condensation heat recovery and its operation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107631389B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112426876A (en) * | 2019-08-26 | 2021-03-02 | 株式会社辰友E&T | Integrated reflux system with built-in heat recovery device and air purification device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001027425A (en) * | 1999-07-13 | 2001-01-30 | Matsushita Electric Ind Co Ltd | Split type air conditioner |
| CN1926388A (en) * | 2004-03-31 | 2007-03-07 | 大金工业株式会社 | Air conditioning system |
| CN203949278U (en) * | 2014-01-27 | 2014-11-19 | 北京卡林新能源技术有限公司 | A kind of air cleaning media units and air cleaning unit |
| CN105371383A (en) * | 2015-12-08 | 2016-03-02 | 清华大学 | Wall-mounted type air purifier based on thermal regeneration and purification method thereof |
| CN105698363A (en) * | 2016-03-29 | 2016-06-22 | 上海帝广机电工程技术有限公司 | Efficient dehumidification and cold-supply air-conditioning device based on CO2 heat pump |
-
2017
- 2017-09-04 CN CN201710787893.2A patent/CN107631389B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001027425A (en) * | 1999-07-13 | 2001-01-30 | Matsushita Electric Ind Co Ltd | Split type air conditioner |
| CN1926388A (en) * | 2004-03-31 | 2007-03-07 | 大金工业株式会社 | Air conditioning system |
| CN203949278U (en) * | 2014-01-27 | 2014-11-19 | 北京卡林新能源技术有限公司 | A kind of air cleaning media units and air cleaning unit |
| CN105371383A (en) * | 2015-12-08 | 2016-03-02 | 清华大学 | Wall-mounted type air purifier based on thermal regeneration and purification method thereof |
| CN105698363A (en) * | 2016-03-29 | 2016-06-22 | 上海帝广机电工程技术有限公司 | Efficient dehumidification and cold-supply air-conditioning device based on CO2 heat pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107631389A (en) | 2018-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI541478B (en) | Air conditioning unit | |
| CN111735114A (en) | Energy-saving purification device based on internal circulation, air conditioning system and control method of energy-saving purification device | |
| CN204006322U (en) | A kind of new wind air purifier | |
| CN206724314U (en) | A kind of wall-mounted frost-free type New-air purifying system of the micro- electrostatic precipitation of band | |
| CN105387524A (en) | Multifunctional fresh air purifying draught fan | |
| CN203286658U (en) | Cabinet air conditioner | |
| CN207350573U (en) | A kind of domestic dehumidifying machine with dehumidifying and air-cleaning function | |
| CN206724409U (en) | A kind of ceiling mounting type frost-free type New-air purifying system of the micro- electrostatic precipitation of band | |
| CN205137723U (en) | Comfortable new trend purification all -in -one | |
| CN105387584A (en) | Multifunctional household fresh air purification treatment machine with air exhausting and heat recycling functions | |
| CN105444325A (en) | Fresh air purification system with axial-flow fans | |
| CN107631389B (en) | Based on the regenerated air cleaning system of air-conditioning condensation heat recovery and its operation method | |
| CN107741051B (en) | Household air conditioning system capable of removing indoor VOCs and formaldehyde and operation method | |
| CN206724330U (en) | A kind of cabinet type frost-free type New-air purifying system of the micro- electrostatic precipitation of band | |
| CN206572620U (en) | A kind of ceiling mounting type bidirectional flow fresh air purifying unit | |
| CN202853078U (en) | Integrated type multifunctional room fresh air unit | |
| CN104374017A (en) | Fresh air purifying and dehumidifying all-in-one machine | |
| CN208612108U (en) | A kind of indoor harmful gas purification device | |
| KR101001435B1 (en) | Out air intake type bio ceramic air cleaner | |
| CN207299172U (en) | A kind of air purifying sterilizer | |
| CN206410276U (en) | A kind of wall-mounted bidirectional flow fresh air purifying unit | |
| CN205351563U (en) | New trend purifies integrative device | |
| CN205261793U (en) | Terminal purifier of multi -functional air | |
| CN204202097U (en) | The vehicle-mounted total heat exchanger of inner-outer circulation | |
| CN205119230U (en) | Cooling device with multiple mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |