CN107413135B - Multifunctional air purifying device - Google Patents
Multifunctional air purifying device Download PDFInfo
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- CN107413135B CN107413135B CN201710533947.2A CN201710533947A CN107413135B CN 107413135 B CN107413135 B CN 107413135B CN 201710533947 A CN201710533947 A CN 201710533947A CN 107413135 B CN107413135 B CN 107413135B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0047—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for discharging the filtered gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a multifunctional air purification device, and relates to an air purification device. It has solved the problem that multi-functional air purification device needs often change the filter core among the prior art. This multi-functional air purification device, including the ventilation pipe, filter and the fan of setting in the ventilation pipe, the ventilation pipe air inlet is located outdoors, the ventilation pipe gas outlet is located indoors, the first manifold of UNICOM on the ventilation pipe, the second manifold, be provided with first control valve on the first manifold, be provided with the second control valve on the second manifold, set up the third control valve on the ventilation pipe between first manifold air inlet and the second manifold air inlet, set up the fourth control valve on the ventilation pipe between first manifold gas outlet and the second manifold gas outlet, be provided with the pressure measurement device who detects filter both sides gas pressure difference on the ventilation pipe. The invention can realize back-blowing cleaning of the purifier by using the manifold and the control valve arranged on the ventilation pipe under the condition of not changing the direction of the fan.
Description
Technical Field
The invention belongs to the technical field of multifunctional air purification devices, and relates to a multifunctional air purification device.
Background
Air purification device that markets at present all adopts filter core dust removal mode promptly dry adsorption type to remove dust basically, and this kind of air purification device's shortcoming is that the filter core is changed untimely and can cause secondary pollution, can not play air purification's effect, and this kind of air purification device needs regular renew cartridge simultaneously, renew cartridge also is a cost not little, consequently, it is the leading people of a design price, and need not renew cartridge, use the domestic small-size new trend system of self-cleaning filter core of blowback, be the technical problem that needs to solve at present.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a multifunctional air purification device which can realize self-cleaning of a purifier through back flushing and is free from filter element replacement.
The purpose of the invention can be realized by the following technical scheme: a multifunctional air purifying device comprises a ventilation pipe, a filter and a fan, wherein the filter and the fan are arranged in the ventilation pipe, the filter realizes the purification of air from particles in the air by means of the adsorption of a filter element with a plurality of gaps, the fan controls the flow of air flow in the ventilation pipe, the air inlet of the ventilation pipe is positioned outdoors, the air outlet of the ventilation pipe is positioned indoors, the ventilation pipe is communicated with a first manifold and a second manifold, the air inlet of the first manifold is communicated with a ventilation pipe body between the fan and the air outlet of the ventilation pipe, the air outlet of the first manifold is communicated with the ventilation pipe body between the filter and the fan, the air inlet of the second manifold is communicated with the ventilation pipe body between the air inlet of the first manifold and the fan, the air outlet of the second manifold is communicated with the ventilation pipe body between the air outlet of the first manifold and the filter, the first manifold is provided with a first control valve, the second manifold is provided with a second, and a fourth control valve is arranged on the ventilation pipe between the air outlet of the first manifold and the air outlet of the second manifold. The vent pipe is provided with a pressure detection device for detecting the gas pressure difference between the two sides of the filter, such as a gas pressure sensor arranged on the two sides of the detection filter.
In the above multifunctional air purification device, the air inlet of the ventilation pipe is communicated with the vertical pipe, the vertical pipe is in a vertical state relative to the ground, a three-way valve is arranged at the communication intersection of the ventilation pipe and the vertical pipe, and the three-way valve is controlled to control the communication between the ventilation pipe and the upper pipe body or the communication between the ventilation pipe and the lower pipe body of the vertical pipe. The two ends of the vertical pipe are closed, optional air inlets communicated with the vertical pipe are distributed along the length direction of the vertical pipe, an on-off control valve is arranged on each optional air inlet to control the communication between the optional air inlet and the atmosphere, and a sensor for detecting air parameters, such as a Pm2.5 concentration detection sensor, is arranged at each optional air inlet and is used for detecting the air quality at different positions in the vertical direction relative to the ground, such as the air quality at different floors.
The working principle of the multifunctional air purifying device is as follows: when fresh air needs to be supplied to a room, the first control valve and the second control valve are closed, the third control valve and the fourth control valve are opened, the three-way valve and the on-off valve at the optional air inlet of the air parameter detection sensor are controlled to be switched on according to the air parameter detected by the air parameter detection sensor at the optional air inlet of the vertical pipe, so that the air at the optional air inlet enters the ventilation pipe, the fan works to send the air into the room, and the air is purified through the filter. When the pressure detection device detects that the pressure values of the two sides of the filter are large, the resistance of the filter is excessive, namely, too many particles are attached, the first control valve and the second control valve are controlled to be opened, the third control valve and the fourth control valve are closed, the fan continues to rotate, indoor air flow is counted into the first manifold, the air flow flows out of the air outlet of the second manifold and blows towards the filter after passing through the fan, namely, the back blowing of the filter is realized, the particles on the filter are blown out of the room from the air inlet of the ventilation pipe, and air parameters detected by the sensor can be detected according to the air parameters, so that the air is discharged from the selectable air inlet with poor air quality of the vertical pipe.
In the above multifunctional air purification device, an included angle between the air inlet of the first air inlet manifold and the ventilation pipe is 30 degrees, an included angle between the air outlet of the first air inlet manifold and the ventilation pipe is 90 degrees, an included angle between the air outlet of the second air inlet manifold and the ventilation pipe is 30 degrees, and an included angle between the air inlet of the second air inlet manifold and the ventilation pipe is 90 degrees. So as to make the air flow into and out of the first manifold and the second manifold smoother.
In the above-described multifunctional air cleaning apparatus, the filter is a Diesel Particulate Filter (DPF).
In the above multifunctional air purification device, a carbon dioxide concentration sensor is further included, which is disposed in the room and is used for detecting the carbon dioxide concentration in the room so as to control the on/off of the fan.
In the above multifunctional air purifying device, the filter is arranged in one section of the independent pipe body, the independent pipe body is detachably inserted into the first filter insertion port of the ventilation pipe, the pipe body of the second manifold is provided with a second filter insertion port corresponding to the filter on the ventilation pipe, the second control valve is positioned between the air inlet of the second manifold and the insertion port, the side wall of the filter is fixedly connected onto the rotary disc, the rotary disc is controlled by the motor to rotate, the rotary disc rotates to control the filter to be switched between the first filter insertion port and the second filter insertion port, so that the communication between the filter and the pipe body is realized, and the pipe body at the rear part of the second filter insertion port is communicated with the dust collecting bag. When the pollutants of the filter on the ventilation pipe reach a certain degree, the rotary disc is rotated to enable the filter to leave the first filter inserting port and then be inserted into the second filter inserting port, at the moment, the first control valve and the third control valve are closed, the second control valve is opened to enable outdoor air flow to enter from the first filter inserting port of the ventilation pipe and then enter the second manifold pipe to carry out back flushing on the filter, so that the particles of the filter enter the dust collection bag to be collected, and the particles are prevented from being directly blown into the atmosphere. Of course, if the outdoor air pollution is too serious, the fourth control valve and the third control valve can be closed, and the first control valve and the second control valve can be opened to perform back flushing by utilizing the indoor air flow.
In the above multifunctional air purification device, the end portions of the pipe bodies on both sides of each of the first filter insertion port and the second filter insertion port are provided with the sealing rings, the sealing rings are connected with the end portions of the pipe bodies through the dielectric elastomers, one side surface of each dielectric elastomer is an electrode surface of each dielectric elastomer and is fixed at the end portion of each pipe body, the other side surface of each dielectric elastomer is the other electrode surface of each dielectric elastomer and is connected with the sealing rings, the two electrode surfaces of each dielectric elastomer are connected with the voltage controller, and the voltage controller is used for controlling the voltage of the two electrode surfaces of each dielectric elastomer. A dielectric elastomer is an electro-active polymer that deforms when a voltage is applied, and will contract in the direction of the applied voltage and expand in a direction perpendicular to the applied voltage, creating a large strain perpendicular to the direction of the electric field. When the filter is required to be separated from the ventilation pipe, voltage is applied to the dielectric elastomer to enable the dielectric elastomer to axially contract along the pipe body, namely the sealing ring is enabled to be separated from two ends of the independent pipe body of the filter, at the moment, the rotary disc is rotated to enable the filter to be separated from the first filter plug-in port to enter the second filter plug-in port, then the voltage of the dielectric elastomer is removed, the dielectric elastomer is enabled to extend in the axial direction of the pipe body, so that the sealing ring is tightly propped against two ends of the independent pipe body of the filter, and gaps.
Compared with the prior art, the multifunctional air purifying device has the following advantages:
1. the invention can realize back-blowing cleaning of the purifier by using the manifold and the control valve arranged on the ventilation pipe under the condition of not changing the direction of the fan.
2. The invention has simple structure, convenient operation and low cost.
Drawings
FIG. 1 is a schematic diagram of the principles of the present invention;
FIG. 2 is a schematic structural diagram according to the first embodiment;
FIG. 3 is a schematic view of the second embodiment;
FIG. 4 is a schematic view of the filter of the second embodiment in a blowback dust removal state;
fig. 5 is an enlarged schematic view at a of fig. 4.
In the figure, a wall 1, a vent pipe 2, a vent pipe air inlet 201, a vent pipe air outlet 202, a filter 3, a fan 4, a first manifold 5, a first manifold air inlet 501, a first manifold air outlet 502, a second manifold 6, a second manifold air inlet 601, a second manifold air outlet 602, a first control valve 7, a second control valve 8, a third control valve 9, a fourth control valve 10, a gas pressure sensor 11, an upright pipe 12, a three-way valve 13, a pm2.5 concentration detection sensor 14, an optional air inlet 15, an on-off control valve 16, a first filter socket 17, a second filter socket 18, a turntable 19, a motor 20, a dust collection bag 21, a sealing ring 22 and a dielectric elastomer 23 are shown.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 1 and 2, a multifunctional air purifying device comprises a ventilation pipe 2 arranged on a wall 1, a filter 3 arranged in the ventilation pipe and a fan 4, wherein the filter can be a mesh filter, for example, the filter is a Diesel Particulate Filter (DPF), the filter adsorbs particles in air by virtue of a filter element with multiple gaps to purify the air, the fan can be an axial fan, the fan controls the flow of air flow in the ventilation pipe, a ventilation pipe air inlet 201 is positioned outdoors, a ventilation pipe air outlet 202 is positioned indoors, the ventilation pipe is communicated with a first manifold 5 and a second manifold 6, a first manifold air inlet 501 is communicated with the ventilation pipe body between the fan and the ventilation pipe air outlet, a first manifold air outlet 502 is communicated with the ventilation pipe body between the filter and the fan, a second manifold air inlet 601 is communicated with the ventilation pipe between the first manifold air inlet and the fan, the second manifold gas outlet 602 is communicated with a ventilation pipe between the first manifold gas outlet and the filter, the first manifold is provided with a first control valve 7, the second manifold is provided with a second control valve 8, the ventilation pipe between the first manifold gas inlet and the second manifold gas inlet is provided with a third control valve 9, the ventilation pipe between the first manifold gas outlet and the second manifold gas outlet is provided with a fourth control valve 10, and the ventilation pipe is provided with a pressure detection device for detecting the gas pressure difference between the two sides of the filter, such as a gas pressure sensor 11 arranged at the two sides of the filter. The control valve may be a solenoid butterfly valve. The carbon dioxide concentration sensor is arranged in the room and used for detecting the carbon dioxide concentration in the room so as to control the starting or the closing of the fan. The included angle between the air inlet of the first air inlet manifold and the ventilation pipe is 30 degrees, the included angle between the air outlet of the first air inlet manifold and the ventilation pipe is 90 degrees, the included angle between the air outlet of the second air inlet manifold and the ventilation pipe is 30 degrees, and the included angle between the air inlet of the second air inlet manifold and the ventilation pipe is 90 degrees. So as to make the air flow into and out of the first manifold and the second manifold smoother. The air inlet of the ventilation pipe is communicated with a vertical pipe 12, the vertical pipe is in a vertical state relative to the ground, a three-way valve 13 is arranged at the communication intersection of the ventilation pipe and the vertical pipe, the three-way valve is controlled to control the communication between the ventilation pipe and an upper pipe body or a lower pipe body of the vertical pipe, two ends of the vertical pipe are closed, optional air inlets 15 communicated with the vertical pipe are distributed along the length direction of the vertical pipe, an on-off control valve 16 is arranged on each optional air inlet to control the communication between the optional air inlets and the atmosphere, and a sensor for detecting air parameters, such as a Pm2.5 concentration detection sensor 14, is arranged at each optional air inlet and is used for detecting the air quality at different positions in the vertical direction relative.
The working principle of the multifunctional air purifying device is as follows: when the concentration of carbon dioxide exceeds a certain concentration, for example 0.1%, fresh air needs to be provided for a room, the first control valve and the second control valve are closed, the third control valve and the fourth control valve are opened, the three-way valve and the on-off valve at the optional air inlet of the air parameter detection sensor are controlled to be conducted according to the air parameter detected by the air parameter detection sensor at the optional air inlet of the vertical pipe, so that the air enters the ventilation pipe, the fan works to send the air into the room, and the air is purified through the filter. When the pressure detection device detects that the pressure values of the two sides of the filter are large, the resistance of the filter is excessive, namely, too many particles are attached, the first control valve and the second control valve are controlled to be opened, the third control valve and the fourth control valve are controlled to be closed, the fan continues to rotate, indoor air flow is counted into the first manifold, the air flow is blown out from the air outlet of the second manifold to the filter after passing through the fan, the back blowing of the filter is realized, and the particles on the filter are blown out of the air inlet of the ventilation pipe to the outside. The air parameter detected by the air parameter detecting sensor can be used for discharging the air from the optional air inlet with poor air quality of the upright pipe.
Example two
As shown in fig. 3, 4 and 5, different from the first embodiment, the filter is disposed in a section of independent pipe body, the independent pipe body is detachably connected to a first filter connection port 17 of the ventilation pipe in an inserting manner, a second filter connection port 18 corresponding to the filter on the ventilation pipe is disposed on the pipe body of the second manifold, the second control valve is located between the air inlet of the second manifold and the connection port, the side wall of the filter is fixedly connected to a rotary disc 19, the rotary disc is controlled by a motor 20 to rotate, the rotary disc rotates to control the filter to be switched between the first filter connection port and the second filter connection port, so that the filter is communicated with the pipe body, and the pipe body at the rear part of the second filter connection port is communicated with a dust collection bag 21. When the pollutants of the filter on the ventilation pipe reach a certain degree, the rotary disc is rotated to enable the filter to leave the first filter inserting port and then be inserted into the second filter inserting port, at the moment, the first control valve and the third control valve are closed, the second control valve is opened to enable outdoor air flow to enter from the first filter inserting port of the ventilation pipe and then enter the second manifold pipe to carry out back flushing on the filter, so that the particles of the filter enter the dust collection bag to be collected, and the particles are prevented from being directly blown into the atmosphere. Of course, if the outdoor air pollution is too serious, the fourth control valve and the third control valve can be closed, and the first control valve and the second control valve can be opened to perform back flushing by utilizing the indoor air flow.
In the above multifunctional air purifying device, the end portions of the pipe bodies on both sides of each of the first filter insertion port and the second filter insertion port are provided with the sealing rings 22, the sealing rings are connected with the end portions of the pipe bodies through the dielectric elastic body 23, one side surface of the dielectric elastic body is an electrode surface of the dielectric elastic body and is fixed at the end portion of the pipe body, the other side surface of the dielectric elastic body is the other electrode surface of the dielectric elastic body and is connected with the sealing rings, the two electrode surfaces of the dielectric elastic body are connected with the voltage controller, and the voltage controller is used for controlling the voltages of the two electrode surfaces of the dielectric elastic body. A dielectric elastomer is an electro-active polymer that deforms when a voltage is applied, and will contract in the direction of the applied voltage and expand in a direction perpendicular to the applied voltage, creating a large strain perpendicular to the direction of the electric field. When the filter is required to leave the ventilation pipe, the dielectric elastomer is electrified to contract along the axial direction of the pipe body, namely the sealing ring is enabled to leave two ends of the independent pipe body of the filter, at the moment, the rotary disc is rotated to enable the filter to leave the first filter plug-in port and enter the second filter plug-in port, then the voltage of the dielectric elastomer is removed, the dielectric elastomer is enabled to extend in the axial direction of the pipe body, so that the sealing ring is enabled to tightly prop against two ends of the independent pipe body of the filter, and the gap between the sealed pipe bodies is realized
Although some terms are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (4)
1. A multifunctional air purification device comprises a ventilation pipe, a filter and a fan, wherein the filter and the fan are arranged in the ventilation pipe, an air inlet of the ventilation pipe is positioned outdoors, and an air outlet of the ventilation pipe is positioned indoors; the air inlet of the ventilation pipe is communicated with the vertical pipe, the vertical pipe is in a vertical state relative to the ground, a three-way valve is arranged at the communication intersection of the ventilation pipe and the vertical pipe, the three-way valve is controlled to control the communication between the ventilation pipe and the upper pipe body or the communication between the ventilation pipe and the lower pipe body of the vertical pipe, two ends of the vertical pipe are closed, optional air inlets communicated with the vertical pipe are distributed along the length direction of the vertical pipe, an on-off control valve is arranged on each optional air inlet to control the communication between the optional air inlet and the atmosphere, a sensor for detecting air parameters is arranged at each optional air inlet, and the optional air inlets are; the filter is arranged in an independent pipe body, the independent pipe body is detachably inserted into a first filter insertion port of the ventilation pipe, a second filter insertion port corresponding to the filter on the ventilation pipe is arranged on the pipe body of the second manifold, the second filter insertion port is communicated with the dust collection bag, the second control valve is positioned between an air inlet of the second manifold and the insertion port, the side wall of the filter is fixedly connected onto a rotary disc, the rotary disc is controlled by a motor to rotate, and the rotary disc rotates to control the filter to be switched between the first filter insertion port and the second filter insertion port; the end parts of the pipe bodies on two sides of each of the first filter interface and the second filter interface are provided with sealing rings, the sealing rings are connected with the end parts of the pipe bodies through dielectric elastomers, one side surface of each dielectric elastomer is an electrode surface of each dielectric elastomer and is fixed on the end part of each pipe body, the other surface of each dielectric elastomer is the other electrode surface of each dielectric elastomer and is connected with the sealing ring, and the two electrode surfaces of each dielectric elastomer are connected with a voltage controller; when the filter leaves the ventilation pipe, the dielectric elastomer is electrified to contract along the axial direction of the pipe body, so that the sealing ring leaves two ends of the independent pipe body of the filter, the rotary disc is rotated to enable the filter to leave the first filter plug-in port and enter the second filter plug-in port, then the voltage of the dielectric elastomer is removed, the dielectric elastomer extends in the axial direction of the pipe body, so that the sealing ring tightly props against two ends of the independent pipe body of the filter, and the gap between the sealing pipe bodies is sealed.
2. The multi-functional air purification device of claim 1, wherein the air inlet of the first air intake manifold is at an angle of 30 degrees with respect to the ventilation tube, the air outlet of the first air intake manifold is at an angle of 90 degrees with respect to the ventilation tube, and the air inlet of the second air intake manifold is at an angle of 90 degrees with respect to the ventilation tube.
3. The multi-functional air purification apparatus of claim 1, wherein the filter is a Diesel Particulate Filter (DPF).
4. The multi-functional air purification apparatus of claim 1, further comprising a carbon dioxide concentration sensor disposed indoors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710533947.2A CN107413135B (en) | 2017-07-03 | 2017-07-03 | Multifunctional air purifying device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710533947.2A CN107413135B (en) | 2017-07-03 | 2017-07-03 | Multifunctional air purifying device |
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| CN107413135A CN107413135A (en) | 2017-12-01 |
| CN107413135B true CN107413135B (en) | 2020-11-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108096919A (en) * | 2017-12-14 | 2018-06-01 | 深圳市伟诗普润科技有限公司 | Filtration system with backwashing function |
| CN109469548A (en) * | 2018-12-05 | 2019-03-15 | 神通科技集团股份有限公司 | A kind of inlet manifold dust-extraction unit |
| CN111135642B (en) * | 2020-01-07 | 2022-04-22 | 华北电力大学（保定） | Air purifying and filtering mechanism for indoor air conditioner pipeline |
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| CN101322893A (en) * | 2008-07-30 | 2008-12-17 | 苏中 | Smoke cyclic screening and dedusting method and apparatus |
| CN204704977U (en) * | 2015-06-09 | 2015-10-14 | 覃宗胜 | Indoor zero deleterious particle thing air interchanger |
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| JP2005155424A (en) * | 2003-11-25 | 2005-06-16 | Kazunori Iwasaki | Exhaust emission control device and method for regenerating the same |
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| CN206867897U (en) * | 2017-05-27 | 2018-01-12 | 嘉兴南洋职业技术学院 | A kind of self-cleaning, air cleaning device |
| CN206867869U (en) * | 2017-05-27 | 2018-01-12 | 嘉兴南洋职业技术学院 | A kind of air purifier for exempting to change filter core |
| CN206846990U (en) * | 2017-05-27 | 2018-01-05 | 嘉兴南洋职业技术学院 | A kind of air purifier |
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| CN101322893A (en) * | 2008-07-30 | 2008-12-17 | 苏中 | Smoke cyclic screening and dedusting method and apparatus |
| CN204704977U (en) * | 2015-06-09 | 2015-10-14 | 覃宗胜 | Indoor zero deleterious particle thing air interchanger |
| CN105066259A (en) * | 2015-09-07 | 2015-11-18 | 安吉润风空气净化科技有限公司 | Intelligent air purifying device considering indoor temperature |
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| CN107413135A (en) | 2017-12-01 |
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