CN2847143Y - In-site cleaning air filter device and its combined purifying air conditioner - Google Patents
In-site cleaning air filter device and its combined purifying air conditioner Download PDFInfo
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- CN2847143Y CN2847143Y CNU2005200668334U CN200520066833U CN2847143Y CN 2847143 Y CN2847143 Y CN 2847143Y CN U2005200668334 U CNU2005200668334 U CN U2005200668334U CN 200520066833 U CN200520066833 U CN 200520066833U CN 2847143 Y CN2847143 Y CN 2847143Y
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model relates to an air filter device for purifying the interior of an air conditioner and a combined purifying air conditioner, particularly an in-site cleaning air filter device which is installed in a household air conditioner and an industrial purifying air conditioner and has the function of automatically cleaning on the spot. The in-site cleaning air filter device comprises a filter, a driving mechanism and an ultrasonic cleaning machine, wherein the ultrasonic cleaning machine is composed of an ultrasonic generator, a cleaning tank and a high-pressure spray thrower; the high-pressure spray thrower comprises a spray head, a liquid-conveying pipe and a high-pressure pump; the liquid-conveying pipe is connected to the spray head from the cleaning tank via the high-pressure pump. The filter and the cleaning tank relatively move under the driving of the driving mechanism. The utility model has the advantages of instant dust removal, air sterilization enforcement at any moment and industrial and living waste gas removal.
Description
Technical field
The utility model belongs to air purification field, relates to the air filter arrangement of purification air-conditioning inside and the purification air-conditioning that is made up.
Background technology
Existing purification air-conditioning device is by air cleaner filtering grit step by step, and also filtering reaches clean effect attached to the bacterium and the virus on grit surface simultaneously.Prolongation along with service time, a large amount of grits rests on the filters at different levels, cause filtration resistance to increase, laying dust becomes the hotbed of bacterium parasitism and breeding, and the microorganism of new breeding and the pernicious gas of release thereof all might produce secondary pollution with a large amount of harmful metabolins, corpse, fragment.
Present solution is: when the air cleaner laying dust acquired a certain degree, artificial unloading's filter was reinstalled after the cleaning.Thus, there are following several defectives at least:
1, in when dismounting, the grit that is deposited on filter surfaces (piece) in flakes drops, have fly upward once again may and pollute the air channel;
2, when refitting, must could determine the air-tightness that filter is installed through trial run;
Present domestic air conditioning equipment owing to have only the coarse strainer of one-level, adds that the user may not necessarily in time clean coarse strainer, has caused a large amount of dirt accumulation, causes the air pressure air flow loss, and the contained bacterial population severe overweight of air-out.Household cabinet air-conditioning used after 1 year, met wet weather, and air-out has dense frowst.
Some design is a configuration active carbon adsorption filter in air-conditioner, but because of wash-out and regenerating unit are not set, cause absorber and be difficult to determine the replacing time and have inefficacy and not easily changeable defective.
Summary of the invention
The purpose of this utility model is to provide a kind of air filter arrangement of original position cleaning, is installed on household electrical appliances air-conditioning and industrial purification air-conditioning inside, has the function of cleaning automatically on the spot.
The air filter arrangement that original position described in the utility model is cleaned comprises filter, transmission mechanism and supersonic wave cleaning machine; Described supersonic wave cleaning machine is made up of supersonic generator, rinse bath and high-pressure spraying device; Described high-pressure spraying device comprises spray head, woven hose and high-pressure pump, and woven hose is connected to spray head from rinse bath through high-pressure pump; The relative motion under transmission mechanism drives of described filter and rinse bath.
Described filter includes but not limited to following mode:
---described filter is a primary efficient filter screen, and described transmission mechanism is a reel, and the both sides of primary efficient filter screen are wound on respectively on coiling and the lower mandrel member, and lower mandrel member is positioned at the rinse bath of supersonic wave cleaning machine.
---described filter is board-like, pocket type, box medium effeciency filter or chemical filter, and described transmission mechanism is made up of the framework and the guide tracked elevating mechanism of assembly filter, moves up and down with respect to the rinse bath of below.
---described filter is board-like, pocket type, box medium effeciency filter or chemical filter, and described transmission mechanism is a lifting platform, and rinse bath is positioned on the lifting platform and under the drive of lifting platform and moves up and down with respect to filter.
---described filter is board-like just the effect or medium effeciency filter, and its lower end frame is equipped with rotating shaft, and leaf filter pivots in the rinse bath.
---described filter is a chemical filter, is the ventilative board-like or box-type container of filling porous material, and the container below is a supersonic wave cleaning machine, and the container top is the high-pressure spraying device.
Described spray head is distributed in the rinse bath.
Described spray head is distributed in the electric heater place.
Ultrasonic wave high-frequency generator, liquid level control switch, supplying drainage, washing agent dispensing port and spray head are housed in the rinse bath of described supersonic wave cleaning machine.
Another purpose of the present utility model is to provide a kind of combined type purification air-conditioning, and its inside has automatic cleaning function on the spot.
Combined type purification air-conditioning described in the utility model, comprise main frame and refrigerating plant, main frame is inner by following functional section combination: mixer, just imitate section, one-level air supply section, middle effect section, surface cooling section, secondary air supply section, electric heater section, chemisorbed section, efficiently section, sweep the wind section, link to each other by airduct between each functional section, contain the one or more air filter arrangement that cleans as the described original position of one of claim 1 to 9.
The air filter arrangement that original position described in the utility model is cleaned has the following advantages:
(1) instant dedusting: by ultrasonic cleaning equipment and high-pressure spraying device, can in time remove laying dust in the aircondition, guarantee that air-conditioner is to work under no laying dust state, thereby following advantage is arranged: 1, degree of purification and air quantity can both reach the design peak work capacity; The secondary fly-up of dust when 2, having avoided dismounting is avoided producing new pollution sources because of the long-pending bacterium of laying dust; 3, save manually tear open, wash, adorn and reset after air-tight test, reduced hand labor, saved the plenty of time, improved the utilization rate of air conditioner;
(2) implement air sterillization at any time: in the spray liquid of humidification, add bactericide, but can effectively kill airborne pathogeny bacterium, can produce effective control immediately to airborne disease.This point is particularly conducive to the use of hospital.Implementation method is: in the space that people's activity is arranged, can select for use hydrogen peroxide as bactericide, unnecessary hydrogen peroxide moment is resolved into water and oxygen, can not produce harm to health; In unmanned movable space, the selection of bactericide can be more flexible, more cheap, and common available disinfectant has formaldehyde, alcohol, chlorine dioxide, ozone etc.;
(3) remove industry and life waste gas: chemosorbent absorber acid and alkalescence is set absorbs industrial waste gas hydrogen sulfide, sulfur dioxide, oxynitride, amine gas (rubbish fermentation stink) and restaurant kitchen fume or the like basically.Described porous material chemisorbed device and wash-out regenerating unit thereof have guaranteed that the chemisorbed device not only can remove waste gas but also can produce adsorption effect under the situation that need not change carrier, and be extremely easy to use.
Description of drawings
Fig. 1 is the structural representation of the air filter arrangement of first kind of original position cleaning described in the utility model;
Fig. 2 is the structural representation of the air filter arrangement of second kind of original position cleaning described in the utility model;
Fig. 3 is the structural representation of the air filter arrangement of the third original position cleaning described in the utility model;
Fig. 4 is the structural representation of the air filter arrangement of the 4th kind of original position cleaning described in the utility model;
Fig. 5 is the structural representation of the air filter arrangement of the 5th kind of original position cleaning described in the utility model;
Fig. 6 is the structural representation of combined type purification air-conditioning described in the utility model.
The specific embodiment
Embodiment one:
The air filter arrangement that original position described in the utility model is cleaned as shown in Figure 1, comprises filter, transmission mechanism and supersonic wave cleaning machine; Described supersonic wave cleaning machine is made up of supersonic generator, rinse bath 16 and high-pressure spraying device; Described high-pressure spraying device comprises spray head 17, woven hose 14 and high-pressure pump 15, and woven hose 14 is connected to spray head 17 from rinse bath 16 through high-pressure pump 15; The relative motion under transmission mechanism drives of described filter and rinse bath 16.In the present embodiment, described filter is a primary efficient filter screen 11, and described transmission mechanism is reel 12 and 13; The both sides of described primary efficient filter screen 11 are wound on respectively on coiling 12 and the lower mandrel member 13, and lower mandrel member 13 is positioned at the rinse bath 16 of supersonic wave cleaning machine.Ultrasonic wave high-frequency generator, liquid level control switch, supplying drainage, washing agent dispensing port and spray head 17 are housed in the rinse bath 16 of described supersonic wave cleaning machine.
As shown in Figure 1, air enters from air inlet 18, after primary efficient filter screen 11 filters, comes out from air outlet 19 again.Impurity such as the dust that has in the air stick on the primary efficient filter screen 11, when needs clean primary efficient filter screen 11, axle (or lower shaft) rotates under the effect of motor on the electric coiling, primary efficient filter screen 11 moves as the arrow direction under it drives, debouch rinse bath 16, when primary efficient filter screen 11 rose (or decline), supersonic wave cleaning machine startup work can have been cleaned screen pack.Spray head 17 is installed in the rinse bath 16, is more conducive to clean.And during air-conditioner work, this work also can be carried out synchronously.Thus, primary efficient filter screen 11 can clean in position automatically.
Embodiment two:
The air filter arrangement that original position described in the utility model is cleaned as shown in Figure 2, comprises filter, transmission mechanism and supersonic wave cleaning machine; Described supersonic wave cleaning machine is made up of supersonic generator, rinse bath 16 and high-pressure spraying device; Described high-pressure spraying device comprises spray head 17, woven hose 14 and high-pressure pump 15, and woven hose 14 is connected to spray head 17 from rinse bath 16 through high-pressure pump 15; The relative motion under transmission mechanism drives of described filter and rinse bath 16.Described filter is board-like, pocket type, box medium effeciency filter 21, and described transmission mechanism is made up of the framework 22 and the guide tracked elevating mechanism 23 of assembly filter, moves up and down with respect to the rinse bath 16 of below.Ultrasonic wave high-frequency generator, liquid level control switch, supplying drainage, washing agent dispensing port and spray head 17 are housed in the rinse bath 16 of described supersonic wave cleaning machine.
As shown in Figure 2, air enters from air inlet 24, after medium effeciency filter 21 filters, comes out from air outlet 25 again.Medium effeciency filter 21 can move in the rinse bath 16 as the arrow direction by its framework 22 and guide tracked elevating mechanism 23 of assembly, and after supersonic wave cleaning machine was put into running water automatically, the supersonic generator starting was also cleaned by preset program.Spray head 17 is installed in the rinse bath 16, is more conducive to clean.Thus, medium effeciency filter 21 can clean in position automatically.Cleaning finishes, and filter is got back on the original position through the machine transmission, and simultaneously, supersonic wave cleaning machine is opened the blowoff valve effluent sewerage automatically.Look the laying dust situation of filter, can select single running water to clean, use the running water rinsing again after also can cleaning with cleaning solution.
Chemisorbed device wash-out and regeneration: wash-out is the adsorbent that utilizes running water or chemical removal agent eccysis to be neutralized, and its mode has two kinds, i.e. embathing under the hydro-peening of high-pressure pump circulation and the ultrasonic wave effect.The purpose of embathing be by hyperacoustic higher-order of oscillation can be more deep, wash-out deposit more up hill and dale, so, in principle, repeatedly will select behind the hydro-peening once to embathe to keep the specific area of porous material.Wash-out terminal point data is by experiment determined, and is programmed in pre-set programs.In like manner, regeneration is that chemosorbent is written in the porous material again, and mode also is that spray sucks and dipping sucks.Usually, regeneration is identical with type of elution, promptly uses hydro-peening during wash-out, during regeneration just with spray; Wash-out is just used dipping with embathing during regeneration.The chemisorbed device can be several at air-conditioner, and the contained adsorbent of each chemisorbed device can be of different nature, and arrangement mode has polyphone and alternately contacts, and can be arranged on the interior arbitrary position of air-conditioned wind tunnel.
Embodiment three:
The air filter arrangement that original position described in the utility model is cleaned as shown in Figure 3, comprises filter, transmission mechanism and supersonic wave cleaning machine; Described supersonic wave cleaning machine is made up of supersonic generator, rinse bath 16 and high-pressure spraying device; Described high-pressure spraying device comprises spray head 17, woven hose 14 and high-pressure pump 15, and woven hose 14 is connected to spray head 17 from rinse bath 16 through high-pressure pump 15; The relative motion under transmission mechanism drives of described filter and rinse bath 16.Described filter is board-like, pocket type, box medium effeciency filter 21, and described transmission mechanism is a lifting platform 32, and rinse bath 16 is positioned on the lifting platform 32 and under the drive of lifting platform 32 and moves up and down with respect to medium effeciency filter 21.
As shown in Figure 3, air enters from air inlet 33, after medium effeciency filter 21 filters, comes out from air outlet 34 again.Medium effeciency filter 21 is fixed, and rinse bath 16 can rise as the arrow direction under the drive of lifting platform 32, and medium effeciency filter 21 is immersed in the cleaning fluid, is cleaned by supersonic wave cleaning machine.Spray head 17 is installed in the rinse bath 16, is more conducive to clean.Thus, medium effeciency filter 21 can clean in position automatically.
Embodiment four:
The air filter arrangement that original position described in the utility model is cleaned as shown in Figure 4, comprises filter, transmission mechanism and supersonic wave cleaning machine; Described supersonic wave cleaning machine is made up of supersonic generator, rinse bath 16 and high-pressure spraying device; Described high-pressure spraying device comprises spray head 17, woven hose 14 and high-pressure pump 15, and woven hose 14 is connected to spray head 17 from rinse bath 16 through high-pressure pump 15; The relative motion under transmission mechanism drives of described filter and rinse bath 16.Described filter is board-like medium effeciency filter 21, and its lower end frame is equipped with rotating shaft 42, and leaf filter is in axle 42 rotates to rinse bath 16.
As shown in Figure 3, air enters from air inlet 43, after medium effeciency filter 21 filters, comes out from air outlet 44 again.Medium effeciency filter 21 can 42 rotate in the rinse bath 16 around the shaft, is cleaned by supersonic wave cleaning machine.Spray head 17 is installed in the rinse bath 16, is more conducive to clean.Thus, medium effeciency filter 21 can clean in position automatically.
Board-like medium effeciency filter 21 in the present embodiment also can change board-like roughing efficiency air filter 41 into, realizes that based on same structure original position cleans automatically.
Embodiment five:
The air filter arrangement that original position described in the utility model is cleaned, as shown in Figure 5, described spray head is distributed near the electric heater 51.Described high-pressure spraying device comprises spray head 17, woven hose 14 and high-pressure pump 15, and woven hose 14 is connected to spray head 17 from rinse bath 16 through high-pressure pump 15.Cleaning fluid sprays downwards from spray head 17, behind the electric heater 51 of flowing through, comes together in the catch tray 52.
In the various embodiments described above, ultrasonic wave high-frequency generator, liquid level control switch, supplying drainage, washing agent dispensing port and spray head 17 are housed in the rinse bath 16 of described supersonic wave cleaning machine.
Embodiment six:
Combined type purification air-conditioning described in the utility model, as shown in Figure 6, comprise main frame 101 and refrigerating plant 72, main frame 101 is inner by following functional section combination: mixer, just imitate section, one-level air supply section, middle effect section, surface cooling section, secondary air supply section, efficiently section, electric heater section, chemisorbed section, sweep the wind section, continuous between each functional section by airduct.Described mixer is made up of air inlet 18, fresh wind tube 20 and humidification sprayer 26; The described section of just imitating is equipped with the roughing efficiency air filter 41 that cleans as embodiment one described original position; Described one-level air supply section is equipped with motor 61 and draught fan impeller 62; Imitate section in described the medium effeciency filter 21 that original position is cleaned is housed, specifically in the present embodiment, this medium effeciency filter 21 is divided into two parts up and down, top is divided into the portable medium effeciency filter that cleans as embodiment two described original positions, and the bottom is divided into the fixed medium effeciency filter that cleans as embodiment three described original positions; Described surface cooling section is equipped with surface cooler 71 and condensed water discharge pipe, and surface cooler 71 is connected with refrigerating plant 72; Described secondary air supply section is equipped with air-supply wheel 91; Described efficient section is equipped with efficient or inferior high efficiency filter 81; The described wind section of sweeping is equipped with and sweeps wind apparatus 82; Also can install additional between secondary air supply section and the efficient section as embodiment five described electric heaters 51 and/or as the chemical filter 31 of embodiment two or three described original positions cleanings.Complete dynamo-electric control device 73 also is housed in the main frame 101.In actual applications, can select different functional sections to be made up, the position of functional section can be adjusted during combination, simultaneously, for the reinforcement of a certain index, can increase the configuration quantity of certain functional section, so the utility model is called combined type purification air-conditioning device.The air filter arrangement that the described original positions of embodiment four are cleaned does not have in the present embodiment to be selected for use and not to illustrate in the drawings.
Claims (10)
1, the air filter arrangement of original position cleaning is characterized in that: comprise filter, transmission mechanism and supersonic wave cleaning machine; Described supersonic wave cleaning machine is made up of supersonic generator, rinse bath (16) and high-pressure spraying device; Described high-pressure spraying device comprises spray head (17), woven hose (14) and high-pressure pump (15), and woven hose (14) is connected to spray head (17) from rinse bath (16) through high-pressure pump (15); Described filter and rinse bath (16) relative motion under transmission mechanism drives.
2, the air filter arrangement of original position cleaning according to claim 1, it is characterized in that: described filter is primary efficient filter screen (11), described transmission mechanism is reel (12,13), the both sides of primary efficient filter screen (11) are wound on respectively on coiling (12) and the lower mandrel member (13), and lower mandrel member (13) is positioned at the rinse bath (16) of supersonic wave cleaning machine.
3, the air filter arrangement of original position cleaning according to claim 1, it is characterized in that: described filter is board-like, pocket type, box medium effeciency filter (21) or chemical filter (31), described transmission mechanism is made up of the framework (22) and the guide tracked elevating mechanism (23) of assembly filter, moves up and down with respect to the rinse bath (16) of below.
4, the air filter arrangement of original position cleaning according to claim 1, it is characterized in that: described filter is board-like, pocket type, box medium effeciency filter (21) or chemical filter (31), described transmission mechanism is lifting platform (32), and rinse bath (16) is positioned at lifting platform (32) and goes up and move up and down with respect to filter under the drive of lifting platform (32).
5, the air filter arrangement of original position cleaning according to claim 1, it is characterized in that: described filter is board-like roughing efficiency air filter (41) or medium effeciency filter (21), its lower end frame is equipped with rotating shaft, and leaf filter pivots in the rinse bath (16).
6, the air filter arrangement of original position cleaning according to claim 1, it is characterized in that: described filter is chemical filter (31), be the ventilative board-like or box-type container of filling porous material, the container below is a supersonic wave cleaning machine, and the container top is the high-pressure spraying device.
7, the air filter arrangement of original position cleaning according to claim 1, it is characterized in that: described spray head (17) is distributed in the rinse bath (16).
8, the air filter arrangement of original position cleaning according to claim 1, it is characterized in that: described spray head (17) is distributed in electric heater (51) and locates.
9, the air filter arrangement of original position cleaning according to claim 1 is characterized in that: ultrasonic wave high-frequency generator, liquid level control switch, supplying drainage, washing agent dispensing port and spray head (17) are housed in the rinse bath of described supersonic wave cleaning machine (16).
10, combined type purification air-conditioning, comprise main frame (101) and refrigerating plant (72), main frame (101) is inner by following functional section combination: mixer, just imitate section, one-level air supply section, middle effect section, surface cooling section, secondary air supply section, efficiently section, electric heater section, chemisorbed section, sweep the wind section, link to each other by airduct between each functional section, it is characterized in that: contain the one or more air filter arrangement that cleans as the described original position of one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200668334U CN2847143Y (en) | 2005-11-10 | 2005-11-10 | In-site cleaning air filter device and its combined purifying air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200668334U CN2847143Y (en) | 2005-11-10 | 2005-11-10 | In-site cleaning air filter device and its combined purifying air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2847143Y true CN2847143Y (en) | 2006-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2005200668334U Expired - Fee Related CN2847143Y (en) | 2005-11-10 | 2005-11-10 | In-site cleaning air filter device and its combined purifying air conditioner |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456715A (en) * | 2013-09-12 | 2015-03-25 | 深圳三马电器有限公司 | Air purifying adjuster |
| CN105115044A (en) * | 2015-09-28 | 2015-12-02 | 成都小蛋科技有限公司 | Indoor air intelligent adjustment system |
| CN105115059A (en) * | 2015-09-28 | 2015-12-02 | 成都小蛋科技有限公司 | Self-cleaning air purifying device |
| CN105972705A (en) * | 2016-05-17 | 2016-09-28 | 老肯医疗科技股份有限公司 | Intelligent air sterilization purification device |
| CN106076064A (en) * | 2016-07-26 | 2016-11-09 | 江苏远东环保工程有限公司 | Zeolite process desulfurization and dedusting minimum discharge integral system |
| CN106944274A (en) * | 2017-04-18 | 2017-07-14 | 东莞市佳乾新材料科技有限公司 | A kind of adjustable spray head applied on vacuum filter |
| CN114811781A (en) * | 2022-03-28 | 2022-07-29 | 南阳英良石业有限公司 | Dust removal new trend system is used in processing of inorganic slabstone material |
-
2005
- 2005-11-10 CN CNU2005200668334U patent/CN2847143Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456715A (en) * | 2013-09-12 | 2015-03-25 | 深圳三马电器有限公司 | Air purifying adjuster |
| CN104456715B (en) * | 2013-09-12 | 2017-05-31 | 深圳三马电器有限公司 | A kind of air purification and regulation device |
| CN105115044A (en) * | 2015-09-28 | 2015-12-02 | 成都小蛋科技有限公司 | Indoor air intelligent adjustment system |
| CN105115059A (en) * | 2015-09-28 | 2015-12-02 | 成都小蛋科技有限公司 | Self-cleaning air purifying device |
| CN105115044B (en) * | 2015-09-28 | 2017-10-24 | 成都小蛋科技有限公司 | A kind of Intelligent Indoor Air regulating system |
| CN105115059B (en) * | 2015-09-28 | 2018-03-23 | 四川行之智汇知识产权运营有限公司 | A kind of self-cleaning air cleaning unit |
| CN105972705A (en) * | 2016-05-17 | 2016-09-28 | 老肯医疗科技股份有限公司 | Intelligent air sterilization purification device |
| CN105972705B (en) * | 2016-05-17 | 2019-05-31 | 老肯医疗科技股份有限公司 | A kind of air disinfection and purification smart machine |
| CN106076064A (en) * | 2016-07-26 | 2016-11-09 | 江苏远东环保工程有限公司 | Zeolite process desulfurization and dedusting minimum discharge integral system |
| CN106944274A (en) * | 2017-04-18 | 2017-07-14 | 东莞市佳乾新材料科技有限公司 | A kind of adjustable spray head applied on vacuum filter |
| CN114811781A (en) * | 2022-03-28 | 2022-07-29 | 南阳英良石业有限公司 | Dust removal new trend system is used in processing of inorganic slabstone material |
| CN114811781B (en) * | 2022-03-28 | 2024-03-01 | 南阳英良石业有限公司 | Dust removal fresh air system for inorganic stone plate processing |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061213 Termination date: 20091210 |