CN201476194U - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN201476194U CN201476194U CN200920148450XU CN200920148450U CN201476194U CN 201476194 U CN201476194 U CN 201476194U CN 200920148450X U CN200920148450X U CN 200920148450XU CN 200920148450 U CN200920148450 U CN 200920148450U CN 201476194 U CN201476194 U CN 201476194U
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Abstract
A central air-conditioning is provided with an air purification module. By arranging the air purification module in the central air-conditioning, the air conditioner can effectively remove formaldehyde in the commercial habitable space, a set of air purification modules are additionally mounted in the central air-conditioning, which can play a role in effectively removing formaldehyde from larger habitable space till a plurality of rooms.
Description
Technical field
The utility model relates to air conditioner, relates in particular to the one-to-one split type that use in central air-conditioning and commercial place.
Background technology
Formaldehyde is one of topmost indoor pollutant, and short term contact can stimulate eyes, nasal cavity and respiratory tract and cause allergic reaction, and long-term contact can increase the possibility of suffering from cancer.The volatilization cycle of formaldehyde generally continues 3 to 8 years, has especially just finished to be the high volatilization phase in 3 years after fitting up.
At this technical problem, now the countermeasure that often adopts of people window ventilation, at indoor placement active carbon, onion, employing air purifier etc., but all there is significant limitation in these modes: window (1): adopt this mode not convenient before moving in, need often to come and go, move in the back and adopt this mode can reduce comfortableness, it is bigger to consume energy.And people can not close the window after all year in year out, in case close window, just can't at any time, stably remove formaldehyde, can't solve the problem of distributing that continues of furniture, finishing; (2) active carbon, onion etc.: adopt the mode of absorption to remove formaldehyde, have saturated problem, inconvenience is used in poor, the often replacing of clean-up effect; (3) air purifier: Technology Needs such as photocatalysis, plasma consume more electric energy, the periodic replacement of Technology Needs such as molecular complex locking is used to lock the chemical reagent of formaldehyde, and clean-up effect is relatively poor, need to open separately and place, use and deposit all not conveniently, increased the consumption of the energy.
In addition, the air conditioner of function of removing formaldehyde has appearred having in the recent period on the market, its principle is to be provided with to remove formaldehyde plant in air conditioner, should remove in the formaldehyde plant and be filled with except that the formaldehyde medicament, but this air conditioner only is suitable for family expenses, the counter-measure that the occasion of the commercial living space relatively large in the space, that a plurality of room temperatures of management and control are simultaneously regulated is not then polluted about formaldehyde.And, the employed on the market formaldehyde medicament that removes generally all is reactant or typical catalyst, its term of validity is generally all shorter, therefore need in time to change, and top said commercial living space use generally all is central air-conditioning, maintenance is inconvenience relatively, accomplish often to change the thing that medicament is the comparison difficulty.
The utility model content
Therefore, in view of above-mentioned problems of the prior art propose the utility model, the purpose of this utility model be to provide a kind of can remove effectively, enduringly indoor formaldehyde and easy to use, save the air conditioner in cost and space, this air conditioner mainly refers to the one-to-one split type (containing 1HP 2HP 3HP 5HP) that use in central air-conditioning and commercial place, and interior machine form is based on air-cooled ducted air conditioner.
As the described central air-conditioning of the utility model the 1st technical scheme, it has air-purifying module.
By air-purifying module is set in central air-conditioning, can be implemented in and effectively remove formaldehyde in the commercial living space, and only need in central air-conditioning, to install additional a cover air-purifying module, can in bigger living space and even a plurality of room, play the effect of effective removal formaldehyde.
On the basis of the described central air-conditioning of the 1st technical scheme, in the described central air-conditioning of the 2nd technical scheme, described air-purifying module is provided with cushion packing.
By cushion packing is set, can prevent that module from breaking because of vibration or air pressure compressing when air-conditioning work on air-purifying module.
On the basis of the 1st technical scheme or the described central air-conditioning of the 2nd technical scheme, in the described central air-conditioning of the 3rd technical scheme, described air-purifying module is installed on the downstream part of air filter screen in the described central air-conditioning.
Downstream part by air filter screen in central air-conditioning is installed air-purifying module, can make air behind strainer filtering, pass through air-purifying module again, thus can be before pending air enters air-purifying module net filtration after filtration earlier, thereby can prevent that airborne impurity particle from stopping up air-purifying module.
On the basis of the 1st technical scheme or the described central air-conditioning of the 2nd technical scheme, in the described central air-conditioning of the 4th technical scheme, described air-purifying module is installed on the upstream end of the air inlet of heat exchanger in the described central air-conditioning.
The upstream end of the air inlet by heat exchanger in central air-conditioning is installed air-purifying module, can make air handle through air-purifying module after again and carry out heat exchange between the heat exchanger.Because the air that contact with air-purifying module all is the air of room temperature, so the temperature range relative narrower of handled air when air-purifying module is worked, treatment effect is relatively stable.
On the basis of the 1st technical scheme or the 2nd technical scheme, in the described central air-conditioning of the 5th technical scheme, the compressive resistance of described air-purifying module is at least malleation 12mPa, side pressure 3.0mPa.
The power of business air conditioner motor internal such as central air-conditioning is generally 16～120kw, only make the compressive resistance of air-purifying module reach malleation 12mPa at least, the condition of side pressure 3.0mPa, even can guarantee, high power work long-time at fan the time, air-purifying module is also unlikely crushed.
On the basis of the 1st technical scheme or the 2nd technical scheme, in the described central air-conditioning of the 6th technical scheme, described air-purifying module is of a size of 5～15mm at gas on by direction.
When the thickness of air-purifying module (just at gas by the size on the direction) is in the scope of 5～15mm, can guarantee fully ingress of air cleaning module of pending air, to reach desirable clean-up effect, can prevent again that air-purifying module is oversize and cause the complete machine design size excessive.
On the basis of the 1st technical scheme or the 2nd technical scheme, in the described central air-conditioning of the 7th technical scheme, have a plurality of holes on the described air-purifying module, be scattered in cellularly, on this air-purifying module, scribble catalyst.
This air-purifying module adopts the surface to scribble the ceramic honey comb of catalyst, and stable performance can not decomposed or comes off owing to contact steam or long-term wind produce.
On the basis of the 1st technical scheme or the 2nd technical scheme, in the described central air-conditioning of the 8th technical scheme, the aperture in described hole is 1.4～1.6mm, and the peritreme spacing of adjacent holes is 0.24～0.27mm.
By adopting above technical parameter, can guarantee that air-conditioning is guaranteed indoor formaldehyde removed to remain on the higher transformation efficiency when possessing essential air quantity and ability.
On the basis of the 1st technical scheme or the 2nd technical scheme, in the described central air-conditioning of the 9th technical scheme, the distance at described air-purifying module and fan edge is 30～70mm.
By the distance that makes described air-purifying module and fan edge is 30～70mm, on the one hand, leave the above interval of 30mm between air-purifying module and the fan, between fan and air-purifying module, provide a block buffering leeway for air-flow, directly blow the damage that causes air-purifying module thereby can avoid crossing closely, and make air-flow pass through air-purifying module gently, swimmingly because of fan; On the other hand, be not more than 70mm between air-purifying module and the fan at interval, therefore make air-flow be unlikely to before arriving air-purifying module, just too to weaken, and can avoid too much causing air-conditioner host oversize because of taking up room.
On the basis of the 4th technical scheme, in the described central air-conditioning of the 10th technical scheme, the distance of described air-purifying module and heat exchanger is 100～180mm.
By the distance that makes described air-purifying module and heat exchanger is 100～180mm, on the one hand, leave the above interval of 100mm between air-purifying module and the heat exchanger, make air-flow after by air-purifying module, can arrive at heat exchanger gently, thereby and fully carry out heat exchange between the heat exchanger; On the other hand, be not more than 180mm between air-purifying module and the fan at interval, therefore can avoid too much causing air-conditioner host oversize because of taking up room.
Description of drawings
Fig. 1 is the schematic diagram of the operation principle of expression central air-conditioning of the present utility model.
Fig. 2 is the stereogram of the air-cooled ducted air conditioner of central air-conditioning of the present utility model.
Fig. 3 is the exploded perspective view of the air-cooled ducted air conditioner of central air-conditioning of the present utility model.
Fig. 4 is a schematic diagram of representing the operation principle of central air-conditioning of the present utility model from the angle of central air-conditioning installation site relation under construction.
Fig. 5 is expression Macatal
TMFormaldehyde and product C O in the material degradation formaldehyde process
2The chart of change in concentration.
Fig. 6 is the chart of the multiple stability of material test result of expression.
Fig. 7 A, Fig. 7 B are expression purifying formaldehyde model machine 30m
3The chart of test data.
Fig. 8 also is expression purifying formaldehyde model machine 30m
3The chart of test data.
The specific embodiment
With reference to the accompanying drawings the specific embodiment of the present utility model is described.
Fig. 1 is the schematic diagram of the operation principle of expression central air-conditioning of the present utility model.As shown in Figure 1, the indoor air that contains pollutants such as formaldehyde is inhaled in the air-conditioning equipment 100 by fan 6, air inlet and heat exchanger 5 through air-conditioning equipment 100 after being quickened by fan 6 then carry out the exchange of heat, air-purifying module 16 just is mounted in the air inlet place of air-conditioning equipment 100, make the air that contains the formaldehyde pollutant after passing through fan 6 quickens pass air-purifying module 16, thereby with contaminant removal such as formaldehyde harmful in the air.Air through purified treatment carried out being discharged into the interior space again after the exchange heat with heat exchanger 5 as described above.
Fig. 2 is the stereogram of the air-cooled ducted air conditioner of central air-conditioning of the present utility model.As shown in Figure 2, air-cooled ducted air conditioner 2 has square metal shell, has heat exchanger, motor, fan, electric heater and the outside parts such as drip tray (above each parts all do not manifest in Fig. 2) that prevent the condensed water drippage in this metal shell.
Air-purifying module 16 just was installed together with air-cooled ducted air conditioner before air-cooled ducted air conditioner 2 dispatches from the factory, and Fig. 3 is the exploded perspective view of the air-cooled ducted air conditioner of central air-conditioning of the present utility model.As shown in Figure 3, what install in the place ahead of cover plate group 1 is the heat exchanger 5 that is complementary with its angle, and what installed at heat exchanger 5 rears is motor support plate 7.Below what install is drip tray 11, be used to collect dripping of being produced when air conditioner refrigerating heats.10 rear or belows that can be installed in motor support plate 7 of base plate according to the air return method difference that the user selects.Filter screen 17 is installed at the return air inlet place, in order to the dust in the filtered air, prevents that airborne dust from entering the inside of air-cooled ducted air conditioner 2, causes the dirty stifled of air-purifying module 16 and heat exchanger 5.Motor 8, (axial flow) fan 6, front and back spiral case 4,9 are installed in a side of motor support plate 7, air-purifying module 16 is installed in the place, air port of motor support plate 7, be positioned at upstream one side of heat exchanger 5, adopt installation frame 14 usefulness screws to fix (this is a kind of pattern of installing rack, also can adopt many fixed strips to fix).Can make all air by air-cooled ducted air conditioner 2 can both fully contact by air-purifying module 16 and with it, carry out catalytic oxidation like this, and make air carry out heat exchange with heat exchanger 5 again after handling through air-purifying module 16.Because the air that contacts with air-purifying module 16 all is the air of room temperature, so the temperature range relative narrower of handled air during its work, treatment effect is relatively stable.Be folded with cushion packing between installation frame 14 and air-purifying module 16, this cushion packing for example can adopt XPE materials such as (being crosslinked polyethylene) to make.By the setting of this cushion packing, can prevent that module from breaking because of vibration or air pressure compressing when air-conditioning work.Because air-purifying module 16 is together to be installed in the cover plate group 1 with motor support plate 7, the below is stopped by drip tray 11 grades, therefore identical with common air-cooled ducted air conditioner from seeing in appearance with the air-cooled ducted air conditioner 2 after air-cleaning function combines, the inconvenience that does not have user installation or use.In addition, have the electric heater unit of forming by electric heater 15 and electrical heating support 13 in the air-cooled ducted air conditioner 2 of present embodiment, but but this is an arrangement, can select according to user's different demands.
Fig. 4 is a schematic diagram of representing the operation principle of central air-conditioning of the present utility model from the angle of central air-conditioning installation site relation under construction.As shown in the drawing, air-cooled ducted air conditioner 2 is installed between ceiling 30 and the construction ceiling 40, utilizes the position, hole on the metal shell to lift by swell fixture, suspension screw rod, pad and nut during installation.In addition, according to the difference of actual installation environment, regulate the height of installation by adjusting and the contacted nut of unit, and, guarantee air-cooled ducted air conditioner installation site level by horizontal instrument adjusting.This type of air-cooled ducted air conditioner has following return air and two kinds of selections of back return air, at the return air inlet place subsidiary at random filter screen need be installed, can connect long air channel or short air channel during installation, and the difference in air channel during according to installation, the motor terminal that is connect is also inequality, and as shown in this Fig. 4 is situation when selecting short air channel to connect.The flow direction of air is shown in arrow among the figure.
Table 1
Next air-purifying module 16 is elaborated.Last table 1 is every technical parameter list of the air-purifying module 16 among the present invention.Air-purifying module 16 adopts ceramic honey combs to make, and is coated with on the surface of this ceramic honey comb and hole wall and is useful on the catalyst of removing pernicious gas.Because the ceramic honey comb stable performance, so can not decompose or come off because of contact steam or long-term wind produce.In addition, the power of the inner blower fan of business air conditioners such as central air-conditioning is generally 16～120kw, therefore only make the compressive resistance of air-purifying module 16 reach malleation 12mPa at least, the condition of side pressure 3.0mPa, even in the time of can guaranteeing, high power work long-time at blower fan, air-purifying module 16 is also unlikely crushed, thereby it can effectively be worked.In addition, the aperture of honeycomb structure is 1.4～1.6mm on the air-purifying module 16, and the peritreme spacing of adjacent holes (being the minimum spacing between the edge of adjacent holes) is 0.24～0.27mm.By adopting above technical parameter, can guarantee that air-conditioning is guaranteed indoor formaldehyde removed when possessing essential air quantity and ability remains on the higher transformation efficiency, and the size of air-purifying module 16 is unlikely again excessive and cause the air conditioner design size excessive.Air-purifying module 16 at gas by the size on the direction, be that thickness is 5～15mm, this interval is comparatively desirable air-purifying module design size scope, because if the thickness of air-purifying module is less than 5mm, then pending air abundant ingress of air cleaning module the time by air-purifying module, thereby may cause purifying not thorough, on the other hand, if the thickness of air-purifying module is greater than 15mm, then need reserve requisite space for air-purifying module is installed specially in air conditioner inside, this can cause the complete machine design size excessive, has both taken the placement space of air conditioner, make the complete machine kerb weight overweight again, effect is unfavorable.In addition, with regard to air conditioner interior layout design, generally can reserve some intervals between each parts, to guarantee necessary clearance space, the interference between the operate as normal that prevents each parts is subjected to mutually.If can be in 15mm with the THICKNESS CONTROL of air-purifying module, then on producing, simply change, utilize original headspace just can realize simply installing additional of air-purifying module in the general design that only needs the air-cooled ducted air conditioner in the existing common air-conditioning machine, do not need the mould of each parts of complete machine is changed, therefore can avoid increasing of production cost.
Air-purifying module 16 is arranged at the position between fan and the heat exchanger, and with the distance at fan edge be 30～70mm, with the distance of heat exchanger be 100～180mm.Pass through this set, on the one hand, between fan and air-purifying module,, directly blow the damage that causes air-purifying module, and make air-flow gently, arrive at heat exchanger by air-purifying module swimmingly thereby can avoid crossing closely because of fan for air-flow provides a block buffering leeway; On the other hand, air-flow is unlikely to just too to weaken before arriving air-purifying module, and can avoid too much causing air-conditioner host oversize because of taking up room.
More than structure of the present utility model is illustrated, chemical composition and the operation principle thereof to the material of being filled in the air-purifying module in the utility model 16 describes below.
Catalytic action through air-purifying module 16 utilizes airborne heat steadily in the long term airborne formaldehyde pollutant Catalytic Oxygen to be changed into water and carbon dioxide at ambient temperature, and its reaction equation is as follows:
The catalyst that is adopted in the utility model is Macatal
TMCatalysis material has provided Macatal in the following table 2
TMThe efficient of catalysis material powder sample room temperature catalytic oxidation formaldehyde.As a comparison, some typical Pt and the activity of Au catalysis material under similar reaction condition have also been provided in the table.From following table 2 as can be seen, Macatal
TMCatalysis material just shows tangible activity (32.2%) at 14 ℃.Au loads on TiO
2, A1
2O
3With show very high activity on the ZnO equally.Macatal
TMSeveral Pt/TiO that report in the activity of catalysis material and these Au catalyst and the document
2Catalyst is all very approaching, during room temperature near 50%.
The activity of several thermocatalytic material of table 2 room temperature catalyze oxidation of formaldehyde
Annotate: GHSV is a reaction velocity, and RH is a relative humidity
We find, air humidity is very big and to Macatal to common catalysis material influence in tens hours in experimental system
TMMaterial activity then influences very little.In order further to investigate Macatal
TMThe stability of material and water repelling property have carried out burin-in process to it.Concrete grammar is: room air is directly through 40% formalin, carry several thousand ppm high-concentration formaldehydes and steam after, continue to handle catalyst samples.Catalyst samples after will handling in 28 days is taken out, and tests its activity once more.Simultaneously, as a comparison, get Au/TiO
2Catalyst is through identical burin-in process.From the Fig. 6 that represents multiple stability of material test result, can see, for fresh sample, Au/TiO
2Active in Macatal
TMMaterial, and its activity under short time, normal reaction conditions, show very stable, but through overaging after 28 days, Au/TiO
2Complete deactivation, and Macatal
TMMaterial still can keep stable formaldehyde to remove efficient.Even under exacting terms more (with Macatal
TMMaterial soaked in water 4 days), this catalysis material still has certain purifying formaldehyde effect after drying in the shade naturally.
Find by the online detection of INNOVA, contain certain density CO in the formaldehyde gas that the paraformaldehyde heating generates, and reacting gas passes through Macatal
TMOutlet CO concentration is lower than import CO concentration (amounting to about transformation efficiency of about 10%) behind the catalyst, and this can not generate CO after showing formaldehyde through catalytic oxidation.Whether have other organic by-products to produce for clear and definite, adopt the PTR-MS mass spectrograph to carry out further analysis to importing and exporting the organic gas composition, its analysis result is presented in the following table 3.Can see that from this table 3 concentration of importing and exporting formic acid and methyl formate is all very approaching, shows Macatal
TMMaterial can not generate above-mentioned harmful side product in the degradation of formaldehyde process, show good selectivity.
Table 3Macatal
TMThe reacting gas organic principle is analyzed before and after the material processed
It below is the test report that Architecural Physics environment indoor air quality sensing chamber of Tsing-Hua University provides.
Fig. 7 A, Fig. 7 B have provided and have utilized the purifying formaldehyde model machine, adopted Macatal
TMCatalysis material 0.5L, at 30m
3Do static Degradation Formaldehyde result of experiment in the test chamber.Can see that from Fig. 7 A this cabin seal is very good, the formaldehyde of injection does not have to change in 200min concentration substantially.Shown in Fig. 7 B, after model machine was opened, concentration of formaldehyde descended rapidly in the cabin.Formaldehyde rate of decay constant when being purified the model machine unlatching through simulating.Purifying model machine pure air amount computing formula in this method of testing is:
CADR＝V×(K-KN)×60min.h
-1
Wherein V is test chamber volume (30m
3), formaldehyde rate of decay constant (0.021min in cabin when K is the model machine unlatching
-1), KN is a formaldehyde nature rate of decay constant (being approximately 0).Calculate and use 0.5L Macatal
TMThe obtainable pure air amount of catalysis material is
CADR＝30×0.021×60＝37.8m
3/h
Fig. 8 has provided the purifying formaldehyde model machine at 30m
3Do the experimental result of static Degradation Formaldehyde authentication property test in the test chamber.As can see from Figure 8, in the time of 120min, natural attenuation curve fall is very little, and this shows that this cabin has good seal.After model machine was opened, concentration of formaldehyde descended rapidly in the cabin, showed that catalysis material in the clarifier has very high reaction rate to airborne formaldehyde under the high-concentration formaldehyde situation when reaction is initial; When 120min, the concentration of formaldehyde in the test chamber still has reduction trend to a great extent, under the situation of catalysis material formaldehyde low concentration in air of this explanation test, still has very high transformation efficiency, preferably treatment effect.
More than be preferred implementation of the present utility model, but the utility model is not limited to this concrete shape.For example, adopted air-purifying module 16 to be installed on the position of fan 6 downstream parts in the utility model, but, also it can be installed on the position of fan 6 upstream ends as long as this air-purifying module 16 is positioned at after the filter screen 17.The utility model can carry out various changes in the scope defined in claims in a word.
Claims (10)
1. central air-conditioning is characterized in that:
Has air-purifying module.
2. central air-conditioning as claimed in claim 1 is characterized in that,
Described air-purifying module is provided with cushion packing.
3. central air-conditioning as claimed in claim 1 or 2 is characterized in that,
Described air-purifying module is installed on the downstream part of air filter screen in the described central air-conditioning.
4. central air-conditioning as claimed in claim 1 or 2 is characterized in that,
Described air-purifying module is installed on the upstream end of the air inlet of heat exchanger in the described central air-conditioning.
5. central air-conditioning as claimed in claim 1 or 2 is characterized in that,
Described air-purifying module is the ceramic honey comb that compressive resistance is at least malleation 12mPa, side pressure 3.0mPa.
6. central air-conditioning as claimed in claim 1 or 2 is characterized in that,
Described air-purifying module is of a size of 5～15mm at gas on by direction.
7. central air-conditioning as claimed in claim 1 or 2 is characterized in that,
Have a plurality of holes on the described air-purifying module, be scattered in cellularly, on this air-purifying module, scribble catalyst.
8. central air-conditioning as claimed in claim 7 is characterized in that,
The aperture in described hole is 1.4～1.6mm, and the peritreme spacing of adjacent holes is 0.24～0.27mm.
9. central air-conditioning as claimed in claim 1 or 2 is characterized in that,
The distance at described air-purifying module and fan edge is 30～70mm.
10. central air-conditioning as claimed in claim 4 is characterized in that,
The distance of described air-purifying module and heat exchanger is 100～180mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920148450XU CN201476194U (en) | 2009-04-08 | 2009-04-08 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920148450XU CN201476194U (en) | 2009-04-08 | 2009-04-08 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201476194U true CN201476194U (en) | 2010-05-19 |
Family
ID=42412445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920148450XU Expired - Fee Related CN201476194U (en) | 2009-04-08 | 2009-04-08 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201476194U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267341A (en) * | 2013-05-31 | 2013-08-28 | 青岛海尔空调电子有限公司 | Tuyere structure and ducted air conditioning unit |
| CN103542455A (en) * | 2013-10-14 | 2014-01-29 | 航天环境工程有限公司 | Building central air conditioning unit capable of removing fine particles |
| CN108554402A (en) * | 2018-04-04 | 2018-09-21 | 清华大学 | Manganese dioxide/carbon cloth composite material and preparation method and application and air cleaning unit |
-
2009
- 2009-04-08 CN CN200920148450XU patent/CN201476194U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267341A (en) * | 2013-05-31 | 2013-08-28 | 青岛海尔空调电子有限公司 | Tuyere structure and ducted air conditioning unit |
| CN103267341B (en) * | 2013-05-31 | 2015-07-29 | 青岛海尔空调电子有限公司 | A kind of air nozzle structure and air-cooled ducted air conditioner |
| CN103542455A (en) * | 2013-10-14 | 2014-01-29 | 航天环境工程有限公司 | Building central air conditioning unit capable of removing fine particles |
| CN103542455B (en) * | 2013-10-14 | 2016-04-06 | 航天环境工程有限公司 | A kind of Central Air Conditioner Used in Buildings unit removing fine particle |
| CN108554402A (en) * | 2018-04-04 | 2018-09-21 | 清华大学 | Manganese dioxide/carbon cloth composite material and preparation method and application and air cleaning unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20160408 |