CN202581560U - Indoor unit and air-treating equipment for air treatment - Google Patents
Indoor unit and air-treating equipment for air treatment Download PDFInfo
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- CN202581560U CN202581560U CN201220137831.XU CN201220137831U CN202581560U CN 202581560 U CN202581560 U CN 202581560U CN 201220137831 U CN201220137831 U CN 201220137831U CN 202581560 U CN202581560 U CN 202581560U
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- 238000011282 treatment Methods 0.000 title claims abstract description 44
- 238000009413 insulation Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 abstract description 5
- 238000007791 dehumidification Methods 0.000 abstract description 3
- 210000001503 joint Anatomy 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000004378 air conditioning Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses an indoor unit for air treatment. The indoor unit for air treatment comprises an air feeder, an exhaust blower, an outdoor air inlet, an indoor air inlet, an outdoor air outlet and an indoor air outlet, wherein the air feeder is connected with the outdoor air inlet in a butt joint mode, and the exhaust blower is connected with the indoor air outlet in a butt joint mode. The indoor unit further comprises a total heat exchanger, a heat exchanger and a humidification component, and the total heat exchanger, the heat exchanger and the humidification component are sequentially arranged between the outdoor air inlet and the indoor air inlet. The utility model further provides air-treating equipment comprising an air-treating outdoor unit and an indoor unit for the air treatment. The indoor unit for air treatment can simultaneously achieve the four main functions of fresh air, total heat exchange, refrigeration or heating and humidification or dehumidification and reduce the usage cost of users while saving energy, and besides, the use is not limited by places.
Description
Technical field
The utility model relates to refrigeration technology field, specially refers to a kind of indoor set and airhandling equipment that is used for air-treatment.
Background technology
The Along with people's growth in the living standard, the use of air-conditioning is more and more general, and air conditioner user is also increasingly high to the quality requirements of room air, and it is also more and more to offer the requirement of indoor new wind to air-conditioning simultaneously.At present; The air-treatment unit that closes with the new wind facies in room that is adopted on the market; Mainly contain large-scale fresh air processor group, full recuperation of heat unit and air-conditioner+new wind air-supply unit three major types; And these three types rely on its control free, energy-efficient, be convenient to excellent processing unit such as installation and maintenance, but still in existence defective separately in varying degrees:
One, large-scale fresh air processor group, its operation principle is the same with air conditioner, is mainly used in concentrated office space or large scale business place.But, can not reclaim cold or the heat of getting rid of foul atmosphere, be not suitable for family and install, limitation is very big.
Two, full recuperation of heat unit, its scope of application is very wide, can reclaim cold or the heat of getting rid of foul atmosphere.But, can not freeze, heat air separately and add wet process, therefore need to increase separately air-conditioner and come air is freezed and heats processing, and need to increase air humidifier separately and add wet process air.This full recuperation of heat unit function concerning the user is too single, and the cost that uses is higher.
Three, air-conditioner+new wind air-supply unit; It need come new wind is heated or lowers the temperature by air-conditioning, and the air quantity of new wind is generally less, can not add wet process to air; And can not reclaim cold or the heat of getting rid of foul atmosphere, therefore be difficult to satisfy the requirement of user resh air requirement.
The utility model content
The main purpose of the utility model is that a kind of indoor set that is used for air-treatment is provided; Can realize new wind, full heat exchange simultaneously, freeze or heat; And humidification or this four big function that dehumidifies; And can reach when not receiving the field of employment restriction, saving the energy, reduce the purpose of customer using cost.
The utility model provides a kind of indoor set that is used for air-treatment; Comprise pressure fan, exhaust blower, outdoor air inlet, indoor air inlet, outdoor exhaust outlet and indoor exhaust wind mouth; Said pressure fan docks with said outdoor air inlet; Said exhaust blower docks with said indoor exhaust wind mouth, also comprises the total-heat exchanger, heat exchanger and the humidification assembly that are successively set between said outdoor air inlet and the indoor air inlet.
Preferably, said outdoor air inlet and said indoor air inlet form first passage, said outdoor exhaust outlet and said indoor exhaust wind interruption-forming second channel; Said first passage is not communicated with said second channel.
Preferably, between said outdoor exhaust outlet and said indoor exhaust wind mouth, also be provided with an air-valve.
Preferably, between said pressure fan and said total-heat exchanger, be provided with first thermal insulation board, between said total-heat exchanger and said heat exchanger, be provided with second thermal insulation board.
The utility model also provides a kind of airhandling equipment; Comprise outdoor machine of air-treatment and the indoor set that is used for air-treatment; The said indoor set that is used for air-treatment comprises pressure fan, exhaust blower, outdoor air inlet, indoor air inlet, outdoor exhaust outlet and indoor exhaust wind mouth; Said pressure fan docks with said outdoor air inlet; Said exhaust blower docks with said indoor exhaust wind mouth, also comprises the total-heat exchanger, heat exchanger and the humidification assembly that are successively set between said outdoor air inlet and the indoor air inlet.
Preferably, the outdoor machine of said air-treatment is air-conditioner outdoor unit, wind cooling cold and hot water unit off-premises station, water-cooled unit off-premises station or connected machine off-premises station.
The utility model is through between outdoor air inlet and indoor air inlet; Set gradually be used for to new wind and air draft carry out heat exchange total-heat exchanger, be used for new wind is lowered the temperature or the heat exchanger of heat treated, and be used for the new wind humidification assembly with humidification that dehumidifies.Adopt the indoor set that is used for air-treatment of this structure; Just can realize new wind, full heat exchange simultaneously, freeze or heat through a kind of indoor set; And humidification or remove this four big function of temperature; Thereby can when save the energy, reduce the purpose of customer using cost, and not receive the restriction of field of employment.
Description of drawings
Fig. 1 is used for the structural representation of the indoor set preferred embodiment of air-treatment for the utility model.
The realization of the utility model purpose, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
The specific embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
With reference to Fig. 1, Fig. 1 is used for the structural representation of the indoor set preferred embodiment of air-treatment for the utility model.
The utility model provides a kind of indoor set that is used for air-treatment; Only need through this indoor set; Just can single new blower fan group, air-conditioning and the humidifier of alternative functions; And can accomplish new wind, the full heat exchange accomplished respectively by air-conditioning, new blower fan group and humidifier institute, freeze or heat, and humidification or remove warm these four functions.This indoor set that is used for air-treatment, its use does not receive environmental limit, both can be used for large-scale places such as office building or large scale business, can be used for the little place of average family and so on yet.
In the present embodiment; The indoor set that is used for air-treatment that is provided; Comprise pressure fan 10, exhaust blower 20, outdoor air inlet 30, indoor air inlet 31, outdoor exhaust outlet 40 and indoor exhaust wind mouth 41, pressure fan 10 is arranged on outdoor air inlet 30 places, and docks with outdoor air inlet 30; Exhaust blower 20 is arranged on indoor exhaust wind mouth 41 places, and docks with indoor exhaust wind mouth 41.Between outdoor air inlet 30 and indoor air inlet 31; Also be disposed with can be used for to new wind and air draft carry out heat exchange total-heat exchanger 50, be used for new wind is lowered the temperature or the heat exchanger 60 of heat treated, and be used for the new wind humidification assembly 70 with humidification that dehumidifies.In the present embodiment, heat exchanger 60 can also can be to adopt the heat exchanger of secondary refrigerant water as refrigerating medium for adopting chilled water heat exchanger as refrigerating medium.
In the above-described embodiments, outdoor air inlet 30 can form a passage with indoor air inlet 31, and this passage can be defined as first passage; And outdoor exhaust outlet 40 also can form a passage with indoor exhaust wind mouth 41, and same, this passage can be defined as second channel.In the present embodiment, first passage and second channel all seal separately, and have no channel connection between first passage and the said second channel.
The outdoor new wind that pressure fan 10 is introduced is fed to the first passage from outdoor air inlet 30; And new wind can carry out the exchange of cold and hot and enthalpy through total-heat exchanger 50 in first passage; Process heat exchanger 60 heats up or lowers the temperature processing afterwards; And pass through humidification assembly 70 and carry out humidification or dehumidification treatments, finally the new wind from outdoor entering first passage can be fed to indoor via indoor air outlet 31; And indoor foul atmosphere can enter into second channel through exhaust blower 31 and via indoor exhaust wind mouth 41, and in second channel, carries out the exchange of cold and hot and enthalpy through total-heat exchanger 50, and is finally seen off outdoor through outdoor exhaust outlet 40.
The utility model embodiment; Through between outdoor air inlet 30 and indoor air inlet 31; Set gradually be used for to new wind and air draft carry out heat exchange total-heat exchanger 50, be used for new wind is lowered the temperature or the heat exchanger 60 of heat treated and the humidification assembly 70 that is used for new wind is removed gentle humidification.And outdoor air inlet 30 is arranged on the same passage with indoor air inlet 31, and outdoor exhaust outlet 40 is arranged on the same passage with indoor exhaust wind mouth 41, two passages are not communicated with mutually.Adopt the indoor set that is used for air-treatment of this structure; Just can realize new wind, full heat exchange simultaneously, freeze or heat through a kind of indoor set; And humidification or remove this four big function of temperature; Thereby can when save the energy, reduce the purpose of customer using cost, and not receive the restriction of field of employment.
In the above-described embodiments; Between pressure fan 10 and total-heat exchanger 50; Be provided with one first thermal insulation board 90, and simultaneously between total-heat exchanger 50 and heat exchanger 60, be provided with one second thermal insulation board 91; In the present embodiment, first thermal insulation board 90 and second thermal insulation board 91 can adopt the foam heat-insulating plate.Between pressure fan 10 and total-heat exchanger 50; And between pressure fan 10 and the total-heat exchanger 50 thermal insulation board is set; The amount of holding that is produced in the time of can total-heat exchanger 50 being worked with heat exchanger 60 absorbs and is isolated; Make the heat between each assembly can not propagate each other, thereby can avoid influencing the operate as normal of total-heat exchanger 50 and heat exchanger 60, guaranteed that each assembly can accomplish corresponding work in isolated relatively environment.
In the above-described embodiments, between outdoor exhaust outlet 40 and indoor exhaust wind mouth 41, also be provided with an air-valve 80.When being in transition season or night; When outside air temperature and indoor air temperature basically identical; Because the refrigeration coil and the exhaust blower 20 of heat exchanger 60 are not worked; And, so just can make the indoor barotropic state that is in through the amount of the resh air requirement in outdoor air inlet 30 inlet chambers greater than the foul atmosphere of discharging through indoor exhaust wind mouth 41.In this state,, do not need exhaust blower 20 operations, just can discharge outdoor through outdoor exhaust outlet indoor foul atmosphere through set air-valve 80.
The indoor set that is used for air-treatment that present embodiment provided, in summer, winter, and transition season or the operation principle when night, outside air temperature was low are different, below these three kinds of operation principles are introduced respectively:
One, when the indoor set that is used for air-treatment during at summer operation:
At first, configure the temperature of indoor needs, pressure fan 10 is opened so that from the new wind of outdoor extraction, new wind can enter into first passage from outdoor air outlet 30, and finally is fed to indoor from indoor air outlet 31; Simultaneously exhaust blower 20 is opened so that indoor foul atmosphere discharge is outdoor, at this moment indoor foul atmosphere can enter into second channel through indoor exhaust wind mouth 41, and finally is discharged from from outdoor exhaust outlet.In the air-supply and the process of air draft,, all can pass through total-heat exchanger 50, and carry out cold and hot and exchange enthalpy from the new wind of outdoor extraction with from the foul atmosphere of indoor discharge.
After process 50 pairs of outdoor new wind of total-heat exchanger and indoor foul atmosphere carry out the exchange of cold and hot and enthalpy; Temperature and the enthalpy of sending into indoor new wind from indoor air outlet 31 just with indoor air themperature and air humidity basically identical, and the temperature of the foul atmosphere of discharging from outdoor exhaust outlet 40 and enthalpy just with outdoor air themperature and air humidity basically identical.Then, process total-heat exchanger 50 has carried out the new wind after the heat exchange processing, lowers the temperature through heat exchanger 60, and dehumidifies through humidification assembly 70, sends into the room to needed new wind at last.This has just accomplished new wind, full heat exchange, refrigeration and and the function of dehumidifying under the pattern in summer.
Two, when the indoor set that is used for air-treatment moves in the winter time:
At first, configure the temperature of indoor needs, pressure fan 10 is opened so that from the new wind of outdoor extraction, new wind can enter into first passage from outdoor air outlet 30, and finally is fed to indoor from indoor air outlet 31; Simultaneously exhaust blower 20 is opened so that indoor foul atmosphere discharge is outdoor, at this moment indoor foul atmosphere can enter into second channel through indoor exhaust wind mouth 41, and finally is discharged from from outdoor exhaust outlet.In the air-supply and the process of air draft,, all can pass through total-heat exchanger 50, and carry out cold and hot and exchange enthalpy from the new wind of outdoor extraction with from the foul atmosphere of indoor discharge.
After process 50 pairs of outdoor new wind of total-heat exchanger and indoor foul atmosphere carry out the exchange of cold and hot and enthalpy; Temperature and the enthalpy of sending into indoor new wind from indoor air outlet 31 just with indoor air themperature and air humidity basically identical, and the temperature of the foul atmosphere of discharging from outdoor exhaust outlet 40 and enthalpy just with outdoor air themperature and air humidity basically identical.Then, process total-heat exchanger 50 has carried out the new wind after the heat exchange processing, heats up through heat exchanger 60, and carries out humidification through humidification assembly 70, sends into the room to needed new wind at last.This has just accomplished new wind, full heat exchange, refrigeration and and the function of dehumidifying under the pattern in the winter time.
Three, when the indoor set that is used for air-treatment moves under transition season or the lower situation of outside air temperature at night:
When outdoor environment is transition season, perhaps when night, outside air temperature was low, in this case, indoor temperature and outside air temperature basically identical.At this moment, then need not freeze or heat, and the discharge of sending into foul atmosphere that only need carry out new wind gets final product indoor.Under this pattern, pressure fan 10 is opened so that from the new wind of outdoor extraction, new wind can enter into first passage from outdoor air outlet 30, and finally is fed to indoor from indoor air outlet 31; The air-valve 80 that will be arranged on simultaneously between outdoor exhaust outlet 40 and the indoor exhaust wind mouth 41 is opened.
Because under this pattern; Need not freeze and heat indoor; Heat exchanger 60, humidification assembly 70 and exhaust blower 20 are not worked; Thereby enter into the amount of indoor resh air requirement greater than the foul atmosphere of discharging through indoor exhaust wind mouth 41 through outdoor air inlet 30, so just can make the indoor barotropic state that is in.In this state, outdoor new wind just can directly be fed to indoor through indoor air outlet 31 after filtering; And, do not need exhaust blower 20 operations through set air-valve 80, just can discharge outdoor through outdoor exhaust outlet indoor foul atmosphere.So just under transition season or the lower pattern of outside air temperature at night, accomplished the function of new wind.
The indoor set that is used for air-treatment that present embodiment provided, as required free adjustment give, the size of exhaust air rate; Can carry out full recuperation of heat to the foul atmosphere of outdoor new wind of sending into and indoor discharge, and can carry out the cool-down dehumidification or the humidification that heats up, thereby save the energy, cut the waste new wind; Can also transform the air-treatment unit of various existing rooms or commercial location, the field of employment is unrestricted.
The utility model also provides a kind of airhandling equipment; Comprise outdoor machine of air-treatment and the indoor set that is used for air-treatment; The indoor set that is used for air-treatment comprises pressure fan 10, exhaust blower 20, outdoor air inlet 30, indoor air inlet 31, outdoor exhaust outlet 40 and indoor exhaust wind mouth 41; Pressure fan 10 is arranged on outdoor air inlet 30 places, and docks with outdoor air inlet 30; Exhaust blower 20 is arranged on indoor exhaust wind mouth 41 places, and docks with indoor exhaust wind mouth 41.Between outdoor air inlet 30 and indoor air inlet 31; Also be disposed with can be used for to new wind and air draft carry out heat exchange total-heat exchanger 50, be used for new wind is lowered the temperature or the heat exchanger 60 of heat treated, and new wind is removed the humidification assembly 70 of gentle humidification.In the present embodiment, heat exchanger 60 can also can be to adopt the heat exchanger of secondary refrigerant water as refrigerating medium for adopting chilled water heat exchanger as refrigerating medium.
Between pressure fan 10 and total-heat exchanger 50; Be provided with one first thermal insulation board 90, and simultaneously between total-heat exchanger 50 and heat exchanger 60, be provided with one second thermal insulation board 91; In the present embodiment, first thermal insulation board 90 and second thermal insulation board 91 can adopt the foam heat-insulating plate.Between pressure fan 10 and total-heat exchanger 50; And between pressure fan 10 and the total-heat exchanger 50 thermal insulation board is set; The amount of holding that is produced in the time of can total-heat exchanger 50 being worked with heat exchanger 60 absorbs and is isolated; Make the heat between each assembly can not propagate each other, thereby can avoid influencing the operate as normal of total-heat exchanger 50 and heat exchanger 60, guaranteed that each assembly can accomplish corresponding work in isolated relatively environment.
In the above-described embodiments; The outdoor machine of air-treatment can adopt off-premises stations such as air-conditioner outdoor unit, wind cooling cold and hot water unit off-premises station, water-cooled unit off-premises station or connected machine off-premises station; Can be connected with the indoor set that is used for air-treatment, thereby form complete airhandling equipment.
The embodiment of this airhandling equipment has comprised whole technical schemes of each embodiment of the structure of the above-mentioned indoor set that is used for air-treatment, and the technique effect that is reached is also identical, repeats no more at this.
The above is merely the preferred embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (7)
1. indoor set that is used for air-treatment; Comprise pressure fan, exhaust blower, outdoor air inlet, indoor air inlet, outdoor exhaust outlet and indoor exhaust wind mouth; Said pressure fan docks with said outdoor air inlet; Said exhaust blower docks with said indoor exhaust wind mouth, it is characterized in that, also comprises the total-heat exchanger, heat exchanger and the humidification assembly that are successively set between said outdoor air inlet and the indoor air inlet.
2. the indoor set that is used for air-treatment as claimed in claim 1 is characterized in that, said outdoor air inlet and said indoor air inlet form first passage, said outdoor exhaust outlet and said indoor exhaust wind interruption-forming second channel; Said first passage is not communicated with said second channel.
3. the indoor set that is used for air-treatment as claimed in claim 2 is characterized in that, between said outdoor exhaust outlet and said indoor exhaust wind mouth, also is provided with an air-valve.
4. like each described indoor set that is used for air-treatment in the claim 1 to 3; It is characterized in that; Between said pressure fan and said total-heat exchanger, be provided with first thermal insulation board, between said total-heat exchanger and said heat exchanger, be provided with second thermal insulation board.
5. airhandling equipment; Comprise outdoor machine of air-treatment and the indoor set that is used for air-treatment; The said indoor set that is used for air-treatment comprises pressure fan, exhaust blower, outdoor air inlet, indoor air inlet, outdoor exhaust outlet and indoor exhaust wind mouth; Said pressure fan docks with said outdoor air inlet; Said exhaust blower docks with said indoor exhaust wind mouth, it is characterized in that, also comprises the total-heat exchanger, heat exchanger and the humidification assembly that are successively set between said outdoor air inlet and the indoor air inlet.
6. airhandling equipment as claimed in claim 5 is characterized in that, the outdoor machine of said air-treatment is air-conditioner outdoor unit, wind cooling cold and hot water unit off-premises station, water-cooled unit off-premises station or connected machine off-premises station.
7. like claim 5 or 6 described airhandling equipments, it is characterized in that the said indoor set that is used for air-treatment is like each described indoor set that is used for air-treatment of claim 2 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220137831.XU CN202581560U (en) | 2012-04-01 | 2012-04-01 | Indoor unit and air-treating equipment for air treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220137831.XU CN202581560U (en) | 2012-04-01 | 2012-04-01 | Indoor unit and air-treating equipment for air treatment |
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| Publication Number | Publication Date |
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| CN202581560U true CN202581560U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220137831.XU Expired - Fee Related CN202581560U (en) | 2012-04-01 | 2012-04-01 | Indoor unit and air-treating equipment for air treatment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953977A (en) * | 2014-05-28 | 2014-07-30 | 沈增友 | Fresh air injecting type room air processing system |
| CN105276686A (en) * | 2015-11-12 | 2016-01-27 | 青岛莱菲尔电器有限公司 | Air processing device and method |
| CN105549665A (en) * | 2016-02-17 | 2016-05-04 | 杨斌 | Intelligent and environment-friendly monitoring system and control method thereof |
| CN110131828A (en) * | 2019-05-22 | 2019-08-16 | 上海市政工程设计研究总院（集团）有限公司 | It is a kind of suitable for south building inner region multi-line system and its for cooling method |
| CN113915687A (en) * | 2021-09-26 | 2022-01-11 | 青岛海尔中央空调有限公司 | Humidity control device |
| RU226299U1 (en) * | 2024-03-27 | 2024-05-30 | Владимир Ильич Федоров | Air handling unit |
-
2012
- 2012-04-01 CN CN201220137831.XU patent/CN202581560U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953977A (en) * | 2014-05-28 | 2014-07-30 | 沈增友 | Fresh air injecting type room air processing system |
| CN105276686A (en) * | 2015-11-12 | 2016-01-27 | 青岛莱菲尔电器有限公司 | Air processing device and method |
| CN105276686B (en) * | 2015-11-12 | 2019-02-22 | 青岛莱菲尔电器有限公司 | A kind of air processor and processing method |
| CN105549665A (en) * | 2016-02-17 | 2016-05-04 | 杨斌 | Intelligent and environment-friendly monitoring system and control method thereof |
| CN110131828A (en) * | 2019-05-22 | 2019-08-16 | 上海市政工程设计研究总院（集团）有限公司 | It is a kind of suitable for south building inner region multi-line system and its for cooling method |
| CN113915687A (en) * | 2021-09-26 | 2022-01-11 | 青岛海尔中央空调有限公司 | Humidity control device |
| RU226299U1 (en) * | 2024-03-27 | 2024-05-30 | Владимир Ильич Федоров | Air handling unit |
| RU229719U1 (en) * | 2024-08-13 | 2024-10-23 | Открытое акционерное общество "Красноярский завод цветных металлов имени В.Н. Гулидова" (ОАО "Красцветмет") | AIR TREATMENT APPARATUS |
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| 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: 20121205 Termination date: 20170401 |