CN104456870A - Fresh air and return air adjusting method and device for air-conditioning systems - Google Patents
Fresh air and return air adjusting method and device for air-conditioning systems Download PDFInfo
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- CN104456870A CN104456870A CN201410757255.2A CN201410757255A CN104456870A CN 104456870 A CN104456870 A CN 104456870A CN 201410757255 A CN201410757255 A CN 201410757255A CN 104456870 A CN104456870 A CN 104456870A
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- air
- return air
- pipeline
- fresh air
- return
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a fresh air and return air adjusting device for air-conditioning systems. The fresh air and return air adjusting device comprises a return air pipeline, a fresh air pipeline and a corresponding return air and fresh air ratio control device. The fresh air and return air adjusting device is characterized by further comprising a detecting unit disposed on the return air pipeline and the fresh air pipeline, and the detecting unit comprises a bypass pipe, a lower half pipe, a PM2.5 adhesive film, an electromagnet, a tray, a balance lever, a position switch and the like. The invention further discloses a fresh air and return air adjusting method. According to the method, the fresh air and return air adjusting device is used to judge a difference of concentrations of particles in the return air pipeline and the fresh air pipeline, and air volumes of the return air pipeline and the fresh air pipeline are adjusted according to the difference. The fresh air and return air adjusting device and method has the advantages that the concentrations of absorbable particles in the fresh air pipeline and the return air pipeline in the air-conditioning system can be well detected and judged, the fresh air and return air ratio can be controlled according to a detection result, power consumption of the air-conditioning system is reduced, and indoor air quality is improved.
Description
Technical field
The present invention relates to air pollutants monitoring technical field; Particularly relate to a kind of apparatus and method that can regulate the new return air ratio of centralized air-conditioning according to the relative quality of indoor-outdoor air.
Background technology
Along with the propelling of process of industrialization and the raising of people's living standard, environmental problem especially air quality problems causes the concern of people day by day.Continuous worsening simultaneously due to air quality, air quality is subject to extensive concern, the IAQ that people are in for a long time most important thing especially.And pellet is huge to health injury in all multi-pollutants, control room air inspirable particle concentration is in level of security and is significant.
All need to use central air conditioner system in a lot of place such as office space or market at present, its traditional central air-conditioning system used is sent into indoor air and is made up of two parts.The air that the first is directly introduced outdoor is referred to as new wind, wherein can cause energy resource consumption to the heat and wet treatment of new wind.It two is originally be present in indoor air to be referred to as return air, and wherein return air circulation can cause the persistent accumulation of gas pollutant.The new wind of most of central air-conditioning systems of present use and the ratio of return air amount were determined in the design phase, total air output can only be changed according to the difference of thermic load, not considering the impact of the difference of new wind return air inspirable particle concentration on air-supply quality, more not improving air-supply quality by changing new return air ratio.Part novel air conditioning system covets air-supply quality, many purification means and cleaning equipment are combined use, have ignored the Appropriate application to return air, which greatly enhances equipment investment cost, blower fan operating load and heat exchanger loads, add difficulty and the input of operation maintenance, inadequate economical and energy saving.
Therefore, design and a kind ofly can improve inspirable particle concentration in room air and the ratio that the simple cost of structure is low, reasonable utilization return air controls new return air, the adjusting device reducing unnecessary energy resource consumption while effectively improving indoor air quality and method under daily life standard, there is long-range application prospect and practical significance.
Summary of the invention
For above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention is: how to provide one can to detect and judge in air-conditioning system inspirable particle concentration in fresh air pipeline and return air duct well, new wind return air ratio can be regulated and controled according to testing result, and then reduce air-conditioning system power consumption, improve air return air control method and the device of IAQ.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
A kind of air return air regulating device, comprise the return air fresh air proportion regulation device of return air duct and fresh air pipeline and correspondence, it is characterized in that, also comprise the checkout gear be arranged on return air duct and fresh air pipeline, described checkout gear, comprise and be arranged in parallel at return air duct and the consistent bypass pipe of two on fresh air pipeline respectively, two bypass pipe centre positions are provided with particulate collection mechanism, described particulate collection mechanism comprises and being embedded at bypass pipe lower surface opening part and the lower tube half of shape all-in-one-piece semi-barrel shape, lower tube half is that ferromagnetic metal is obtained and middle part is upwards vertically fixedly installed a cranse, cranse diameter and bypass pipe internal diameter coupling, PM2.5 adhesive film is provided with in cranse, electromagnet is provided with above the bypass pipe that cranse is corresponding, act on lower tube half after electromagnet energising can be picked up lower tube half is completed and being embedded of bypass pipe lower surface opening, below the lower tube half of two bypass pipes, respective correspondence is provided with a pallet, after electromagnet power-off, lower tube half can drop in corresponding pallet, two pallets lay respectively at a balanced lever two ends and below pallet correspondence be provided with a position switch, position switch and return air fresh air proportion regulation device are associated.
The invention also discloses a kind of air return air control method, it is characterized in that, first adjusting device as above is installed within air-conditioning systems, this adjusting device is adopted to judge particle content concentration difference in return air duct and fresh air pipeline, then the ventilation of return air duct and fresh air pipeline is regulated according to this difference, reduce ventilation in the pipeline that wherein particle content concentration is high or close and ventilate, in the pipeline that particle content concentration is low, improve ventilation.
Specifically, namely this control method is mainly the use procedure of said apparatus.When it uses, distinguished and admirable through bypass pipe in return air duct and fresh air pipeline, PM2.5 content is collected by the PM2.5 adhesive film in cranse, after collecting a period of time, control electromagnet power-off, the lower tube half in two bypass pipes is made to fall under gravity in pallet corresponding to below separately, when in return air duct with fresh air pipeline, solid particulate matter content is different, corresponding PM2.5 adhesive film varies in weight, make balanced lever disequilibrium, the pallet of heavier side declines and triggers position switch corresponding to below, position switch and return air fresh air proportion regulation device are associated, corresponding ducted ventilation is made to be lowered or to close.So just achieve adjustment, improve IAQ, and indirectly reduce air-conditioning system power consumption.
As optimization, arrival end and/or the port of export of described bypass pipe are provided with Electric air valve.During use, stop after starting the Electric air valve same time in two bypass pipes simultaneously, then control electromagnet outage detection.Can ensure that the aeration status of two bypass pipes can be controlled, and makes its aeration status identical so better, and then ensure testing result reliability.
As optimization, described bypass pipe comprise entrance, interlude and outlet section three segment pipe docking form, described particulate collection organization establishes, on interlude, entrance is also provided with the pre-treatment structure for adsorption moisture and bulky grain solid.Like this, the installation of the inner each self-structure of the convenient bypass pipe of three stage structure and replacing, pre-treatment structure can avoid moisture and bulky grain solid to the interference of testing result, improves detection accuracy.
Further, described pre-treatment structure comprises the silica gel damp-proof layer be attached on inner-walls of duct, is arranged on the drier grid of silica gel damp-proof layer rear pipeline enclosure, and is arranged on the PM10 filter membrane in the pipeline of drier grid rear.Like this, silica gel damp-proof layer can initial absorption moisture, and drier cell structure by taking whole radial section and the corrugated metal grid being filled with drier obtains, can absorb moisture further, PM10 filter membrane is arranged at rear and can avoids, by moisture effects, ensure that pre-treatment effect.
As optimization, also comprise auxiliary reset mechanism, described auxiliary reset mechanism comprises the coiling be arranged at above bypass pipe corresponding to lower tube half, coiling is wound with bracing wire, coiling is connected with coiling electric motor and coiling electric motor can be leaned on to drive coiling, and bracing wire lower end is connected on lower tube half or cranse.Like this, after detection, lower tube half by auxiliary reset mechanism auxiliary reset, can improve reset accuracy while resetting by electromagnet, can wait for that detection next time regulates and use after reset.In addition, after this auxiliary reset mechanism is set, when electromagnet power-off, the interference that coiling electric motor drives coiling unwrapping wire to drop to lower tube half to avoid bracing wire can be controlled simultaneously or in advance.
As optimization, also comprise timer in checkout gear, timer is connected with electromagnet and position switch and for recording the time of electromagnet power-off to position switch triggering, timer and return air fresh air proportion regulation device are associated.Like this, due to when in return air duct and fresh air pipeline, particle concentration content is inconsistent, the particle weight that when device can be caused to use, in two bypass pipes, PM2.5 adhesive film is collected is inconsistent, cause lower tube half latter two pallet weight that drops inconsistent, when weight difference is larger, balanced lever velocity of rotation is faster, therefore timer can detect the otherness of the time size that position switch is triggered, and then reflect the difference of particle concentration size in corresponding pipeline, and then more accurately can regulate the ratio of the ventilation of return air duct and fresh air pipeline according to concentration difference, better regulating effect can be realized like this.
As optimization, described lower tube half or bypass pipe lower surface open circumferential are provided with a circle sealing rubber.Like this, sealing effectiveness can be improved when lower tube half is fitted together to, and then avoid the impact that accuracy of detection is caused of losing heart.
As optimization, in described pallet, be provided with flexible beam.Like this, when lower tube half can be avoided to drop, impact impact that testing result is caused, simultaneously beam can fix better lower tube half drop position avoid dropping after mobile dislocation and impact resets.
As optimization, described return air fresh air proportion regulation device comprises the return air control blower fan that correspondence is arranged at return air duct, and correspondence is arranged at the Xingfeng capsule blower fan of fresh air pipeline.Like this, can convenient regulable control.
Like this, compared with being the air-conditioning system of fixed value with present widely used new return air amount ratio, the present invention rationally regulates and controls the new return air amount in air-conditioning system changeably, reduce the quantity delivered of pellet heavy contamination one side air-source, improve the air quality of air-conditioning, meet the requirement of the growing indoor air quality of people and life comfort level, greatly can reduce the live load of air-condition heat exchanger simultaneously when new wind is seriously polluted thus improve return air amount minimizing resh air requirement, reduce the power consumption economize energy of refrigeration (heat).Compared with the existing equipment utilizing complicated purification techniques means process particle, the present invention reduces pellet content in room air effectively by the ratio regulating and controlling new wind and return air amount, simultaneously on the basis not increasing blower fan and heat exchanger duty, reduce equipment investment cost, alleviate the difficulty that cleaning replacing waits day-to-day operation to safeguard.Just invention itself, in the employing of Concentration Testing part is the size that lever principle carrys out the new return air particle concentration of qualitative reflection, because traditional central air-conditioning system there is no need the concrete concentration value of high accuracy Measurement accuracy particle, therefore this technology avoids high precision measuring instrument while greatly reducing installation cost holds flimsy problem, this device is made to be more suitable for normal domestic, expand audient face, be easy to promote the use of on a large scale; In addition, the automaticity of this device is higher, convenient operation and recycling.
In sum, the present invention has can to detect and judge in air-conditioning system inspirable particle concentration in fresh air pipeline and return air duct well, and then new wind return air ratio can be regulated and controled according to testing result, reduce air-conditioning system power consumption, improve the advantage of IAQ.
Accompanying drawing explanation
Fig. 1 is the structural representation sketch of adjusting device of the present invention.In figure, arrow represents wind direction.
Fig. 2 is the structural representation of an independent bypass pipe part in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Air return air regulating device in this detailed description of the invention, structure as depicted in figs. 1 and 2, comprise the return air fresh air proportion regulation device of return air duct 1 and fresh air pipeline 2 and correspondence, also comprise the checkout gear be arranged on return air duct 1 and fresh air pipeline 2, described checkout gear, comprise and be arranged in parallel at return air duct and the consistent bypass pipe of two on fresh air pipeline respectively, two bypass pipe centre positions are provided with particulate collection mechanism, described particulate collection mechanism comprises and being embedded at bypass pipe lower surface opening part and the lower tube half 52 of shape all-in-one-piece semi-barrel shape, lower tube half 52 is for ferromagnetic metal is obtained and middle part is upwards vertically fixedly installed a cranse 521, cranse diameter and bypass pipe internal diameter coupling, PM2.5 adhesive film 522 is provided with in cranse, electromagnet 513 is provided with above the bypass pipe that cranse is corresponding, electromagnet 513 acts on lower tube half 52 and can be picked up lower tube half is completed and being embedded of bypass pipe lower surface opening after being energized, below the lower tube half of two bypass pipes, respective correspondence is provided with a pallet 7, after electromagnet 513 power-off, lower tube half 52 can drop in corresponding pallet 7, two pallets 7 lay respectively at a balanced lever 10 two ends and below pallet correspondence be provided with a position switch 9, position switch and return air fresh air proportion regulation device are associated.
The invention also discloses a kind of air return air control method, its main points are, first adjusting device as above is installed within air-conditioning systems, this adjusting device is adopted to judge particle content concentration difference in return air duct and fresh air pipeline, then the ventilation of return air duct and fresh air pipeline is regulated according to this difference, reduce ventilation in the pipeline that wherein particle content concentration is high or close and ventilate, in the pipeline that particle content concentration is low, improve ventilation.Specifically, namely this control method is mainly the use procedure of said apparatus.When it uses, distinguished and admirable through bypass pipe in return air duct and fresh air pipeline, PM2.5 content is collected by the PM2.5 adhesive film in cranse, after collecting a period of time, control electromagnet power-off, the lower tube half in two bypass pipes is made to fall under gravity in pallet corresponding to below separately, when in return air duct with fresh air pipeline, solid particulate matter content is different, corresponding PM2.5 adhesive film varies in weight, make balanced lever disequilibrium, the pallet of heavier side declines and triggers position switch corresponding to below, position switch and return air fresh air proportion regulation device are associated, corresponding ducted ventilation is made to be lowered or to close.So just achieve adjustment, improve IAQ, and indirectly reduce air-conditioning system power consumption.
When above-mentioned adjusting device is implemented, the arrival end of described bypass pipe and/or the port of export are provided with Electric air valve 3.During use, stop after starting the Electric air valve same time in two bypass pipes simultaneously, then control electromagnet outage detection.Can ensure that the aeration status of two bypass pipes can be controlled, and makes its aeration status identical so better, and then ensure testing result reliability.
When above-mentioned adjusting device is implemented, described bypass pipe comprises the docking of entrance 4, interlude 5 and outlet section 6 three segment pipe and forms, described particulate collection organization establishes, on interlude 5, entrance 6 is also provided with the pre-treatment structure for adsorption moisture and bulky grain solid.Like this, the installation of the inner each self-structure of the convenient bypass pipe of three stage structure and replacing, pre-treatment structure can avoid moisture and bulky grain solid to the interference of testing result, improves detection accuracy.
When above-mentioned adjusting device is implemented, described pre-treatment structure comprises the silica gel damp-proof layer 41 be attached on inner-walls of duct, is arranged on the drier grid 42 of silica gel damp-proof layer 41 rear pipeline enclosure, and is arranged on the PM10 filter membrane 43 in the pipeline of drier grid rear.Like this, silica gel damp-proof layer can initial absorption moisture, drier cell structure can by taking whole radial section and the corrugated metal grid being filled with drier obtains, moisture can be absorbed better further, PM10 filter membrane is arranged at rear and can avoids, by moisture effects, ensure that pre-treatment effect.
When above-mentioned adjusting device is implemented, also comprise auxiliary reset mechanism, described auxiliary reset mechanism comprises the coiling 514 be arranged at above bypass pipe corresponding to lower tube half, coiling 514 is wound with bracing wire 515, coiling 514 is connected with coiling electric motor and coiling electric motor can be leaned on to drive coiling, and bracing wire 515 lower end is connected on lower tube half or cranse.Like this, after detection, lower tube half by auxiliary reset mechanism auxiliary reset, can improve reset accuracy while resetting by electromagnet, can wait for that detection next time regulates and use after reset.In addition, after this auxiliary reset mechanism is set, when electromagnet power-off, the interference that coiling electric motor drives coiling unwrapping wire to drop to lower tube half to avoid bracing wire can be controlled simultaneously or in advance.
When above-mentioned adjusting device is implemented, timer 512 is also comprised in checkout gear, timer 512 is connected with electromagnet 513 and position switch and for recording the time of electromagnet power-off to position switch triggering, timer 512 and return air fresh air proportion regulation device are associated.Like this, due to when in return air duct and fresh air pipeline, particle concentration content is inconsistent, the particle weight that when device can be caused to use, in two bypass pipes, PM2.5 adhesive film is collected is inconsistent, cause lower tube half latter two pallet weight that drops inconsistent, when weight difference is larger, balanced lever velocity of rotation is faster, therefore timer can detect the otherness of the time size that position switch is triggered, and then reflect the difference of particle concentration size in corresponding pipeline, and then more accurately can regulate the ratio of the ventilation of return air duct and fresh air pipeline according to concentration difference, better regulating effect can be realized like this.During concrete enforcement, described timer 512, electromagnet 513 and coiling 514 are installed in a mounting box 511 above bypass pipe, install and protection to facilitate.
When above-mentioned adjusting device is implemented, described lower tube half or bypass pipe lower surface open circumferential are provided with a circle sealing rubber 516.Like this, sealing effectiveness can be improved when lower tube half is fitted together to, and then avoid the impact that accuracy of detection is caused of losing heart.
When above-mentioned adjusting device is implemented, in described pallet 7, be provided with flexible beam 8.Like this, when lower tube half can be avoided to drop, impact impact that testing result is caused, simultaneously beam can fix better lower tube half drop position avoid dropping after mobile dislocation and impact resets.
When above-mentioned adjusting device is implemented, described return air fresh air proportion regulation device comprises the return air control blower fan that correspondence is arranged at return air duct, and correspondence is arranged at the Xingfeng capsule blower fan of fresh air pipeline.Like this, can convenient regulable control.
In sum, the present invention has can to detect and judge in air-conditioning system inspirable particle concentration in fresh air pipeline and return air duct well, and then new wind return air ratio can be regulated and controled according to testing result, reduce air-conditioning system power consumption, improve the advantage of IAQ.
Claims (10)
1. an air return air regulating device, comprise the return air fresh air proportion regulation device of return air duct and fresh air pipeline and correspondence, it is characterized in that, also comprise the checkout gear be arranged on return air duct and fresh air pipeline, described checkout gear, comprise and be arranged in parallel at return air duct and the consistent bypass pipe of two on fresh air pipeline respectively, two bypass pipe centre positions are provided with particulate collection mechanism, described particulate collection mechanism comprises and being embedded at bypass pipe lower surface opening part and the lower tube half of shape all-in-one-piece semi-barrel shape, lower tube half is that ferromagnetic metal is obtained and middle part is upwards vertically fixedly installed a cranse, cranse diameter and bypass pipe internal diameter coupling, PM2.5 adhesive film is provided with in cranse, electromagnet is provided with above the bypass pipe that cranse is corresponding, act on lower tube half after electromagnet energising can be picked up lower tube half is completed and being embedded of bypass pipe lower surface opening, below the lower tube half of two bypass pipes, respective correspondence is provided with a pallet, after electromagnet power-off, lower tube half can drop in corresponding pallet, two pallets lay respectively at a balanced lever two ends and below pallet correspondence be provided with a position switch, position switch and return air fresh air proportion regulation device are associated.
2. air return air regulating device as claimed in claim 1, it is characterized in that, arrival end and/or the port of export of described bypass pipe are provided with Electric air valve.
3. air return air regulating device as claimed in claim 1, it is characterized in that, described bypass pipe comprise entrance, interlude and outlet section three segment pipe docking form, described particulate collection organization establishes, on interlude, entrance is also provided with the pre-treatment structure for adsorption moisture and bulky grain solid.
4. air return air regulating device as claimed in claim 3, it is characterized in that, described pre-treatment structure comprises the silica gel damp-proof layer be attached on inner-walls of duct, be arranged on the drier grid of silica gel damp-proof layer rear pipeline enclosure, and be arranged on the PM10 filter membrane in the pipeline of drier grid rear.
5. air return air regulating device as claimed in claim 1, it is characterized in that, also comprise auxiliary reset mechanism, described auxiliary reset mechanism comprises the coiling be arranged at above bypass pipe corresponding to lower tube half, coiling is wound with bracing wire, coiling is connected with coiling electric motor and coiling electric motor can be leaned on to drive coiling, and bracing wire lower end is connected on lower tube half or cranse.
6. air return air regulating device as claimed in claim 5, it is characterized in that, also timer is comprised in checkout gear, timer is connected with electromagnet and position switch and for recording the time of electromagnet power-off to position switch triggering, timer and return air fresh air proportion regulation device are associated.
7. air return air regulating device as claimed in claim 1, it is characterized in that, described lower tube half or bypass pipe lower surface open circumferential are provided with a circle sealing rubber.
8. air return air regulating device as claimed in claim 1, is characterized in that, be provided with flexible beam in described pallet.
9. air return air regulating device as claimed in claim 1, is characterized in that, described return air fresh air proportion regulation device comprises the return air control blower fan that correspondence is arranged at return air duct, and correspondence is arranged at the Xingfeng capsule blower fan of fresh air pipeline.
10. an air return air control method, it is characterized in that, first adjusting device as claimed in any one of claims 1-9 wherein is installed within air-conditioning systems, this adjusting device is adopted to judge particle content concentration difference in return air duct and fresh air pipeline, then the ventilation of return air duct and fresh air pipeline is regulated according to this difference, reduce ventilation in the pipeline that wherein particle content concentration is high or close and ventilate, in the pipeline that particle content concentration is low, improve ventilation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410757255.2A CN104456870B (en) | 2014-12-11 | 2014-12-11 | Fresh air and return air adjusting method and device for air-conditioning systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410757255.2A CN104456870B (en) | 2014-12-11 | 2014-12-11 | Fresh air and return air adjusting method and device for air-conditioning systems |
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| Publication Number | Publication Date |
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| CN104456870A true CN104456870A (en) | 2015-03-25 |
| CN104456870B CN104456870B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410757255.2A Expired - Fee Related CN104456870B (en) | 2014-12-11 | 2014-12-11 | Fresh air and return air adjusting method and device for air-conditioning systems |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823162A (en) * | 2016-04-28 | 2016-08-03 | 苏州大学 | Air-conditioning and purifying device |
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| KR100672586B1 (en) * | 2005-02-15 | 2007-01-24 | 엘지전자 주식회사 | Method for Controlling Air-Clean Function in Air-Conditioning Device |
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| CN105823162A (en) * | 2016-04-28 | 2016-08-03 | 苏州大学 | Air-conditioning and purifying device |
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| CN104456870B (en) | 2017-01-25 |
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