CN112973365B - PM2.5 adsorption device and manufacturing method thereof - Google Patents
PM2.5 adsorption device and manufacturing method thereof Download PDFInfo
- Publication number
- CN112973365B CN112973365B CN202110379337.8A CN202110379337A CN112973365B CN 112973365 B CN112973365 B CN 112973365B CN 202110379337 A CN202110379337 A CN 202110379337A CN 112973365 B CN112973365 B CN 112973365B
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- China
- Prior art keywords
- filter element
- shell
- rotating shaft
- partition boards
- side wall
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- 238000001179 sorption measurement Methods 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000005192 partition Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 239000003463 adsorbent Substances 0.000 description 8
- 238000001914 filtration Methods 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- 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
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses an adsorption device for PM2.5, which comprises a shell, wherein the top of the shell is provided with a slot, a filter element is inserted in the slot, a plurality of mutually parallel partition boards are installed in the filter element, adsorption materials are filled between adjacent partition boards, air holes are respectively arranged on the left side wall and the right side wall of the filter element between the adjacent partition boards, a rotating shaft is movably installed in the partition boards, a notch is formed in the partition boards, a baffle is installed in the notch, the baffle is fixedly connected with the rotating shaft, clamping heads corresponding to the rotating shaft one by one are arranged on the side surface of the filter element, the clamping heads are fixedly connected with the rotating shaft, sliding grooves are formed in the two sides of the slot, the clamping heads are clamped in the sliding grooves, driving heads clamped with the clamping heads are installed in the sliding grooves, the driving heads are connected with a driving motor, an air inlet pipe and an air outlet pipe are respectively installed at the top and the bottom of the side wall of the shell, and a plurality of connecting pipes are also installed on the side wall of the shell. The invention can improve the defects of the prior art and improve the adsorption effect on PM 2.5.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to a PM2.5 adsorption device and a manufacturing method thereof.
Background
The filtration of PM2.5 in air is usually performed by a filter cartridge. How to improve the filtration and adsorption efficiency of the filter element on the premise of not greatly increasing the cost becomes one of the research hot spots in the field. In general, the adsorption efficiency of the adsorbent itself to PM2.5 is improved by modifying the adsorbent itself, and the utilization rate of the adsorbent is improved by improving the structure of the filter device and the contact sufficiency between the air flow and the adsorbent.
Disclosure of Invention
The invention aims to solve the technical problem of providing a PM2.5 adsorption device and a manufacturing method thereof, which can solve the defects of the prior art and improve the adsorption effect on PM 2.5.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows.
The utility model provides an adsorption equipment of PM2.5, which comprises a housin, the top of casing is provided with the slot, peg graft in the slot has the filter core, install a plurality of baffle that is parallel to each other in the filter core, it has the adsorption material to fill between the adjacent baffle, be provided with the gas pocket on the filter core lateral wall between the adjacent baffle respectively, movable mounting has the rotation axis in the baffle, set up jaggedly on the baffle, install the baffle in the breach, baffle and rotation axis fixed connection, the side of filter core is provided with the dop with rotation axis one-to-one, dop and rotation axis fixed connection, the both sides of slot are provided with the spout, the dop joint is in the spout, install the actuating head with the dop joint in the spout, actuating head and driving motor are connected, intake pipe and outlet duct are installed respectively to the top and the bottom of casing lateral wall, intake pipe and outlet duct communicate with the gas pocket of filter core lateral wall top and bottom respectively, a plurality of connecting pipe are still installed to the casing lateral wall, the both ends of connecting pipe communicate with two gas pockets between the adjacent baffle of filter core homonymy respectively.
Preferably, a filter screen is fixed on the outer side of the notch, and the baffle is positioned in the filter screen.
Preferably, the clamping head is provided with a clamping groove, and the driving head is provided with a clamping pin for inserting the clamping groove.
Preferably, the connection pipe is provided with a flow regulating valve.
The manufacturing method of the PM2.5 adsorption device comprises the following steps:
A. manufacturing a shell 1 with a slot 2;
B. a driving head 10, a driving motor 11 and a connecting pipe 15 are arranged on the shell 1;
C. manufacturing a frame of the filter element 3, installing a baffle plate 4 preset with a rotating shaft 5 and a baffle plate 7 in the frame, filling adsorption materials into the filter element 3, and installing a clamping head 8 on the rotating shaft 5;
D. the filter element 3 is inserted into the slot 2, so that the clamping head 8 and the driving head 10 are ensured to be in inserted fit;
F. the housing 1 is carried to the mounting position, and the upper air inlet pipe 13 and the air outlet pipe 14 are connected.
Preferably, the adsorbent comprises the following components in parts by weight,
35-40 parts of graphene, 15-20 parts of activated carbon, 50-60 parts of diatomite and 3-4 parts of cerium oxide.
The beneficial effects brought by adopting the technical scheme are as follows: according to the invention, by designing the structure of the airflow reciprocating flow, and arranging the notch with the baffle in the filter element, controllable airflow diversion is realized. Because the air flow is kept unchanged all the time in the process of reciprocating flow in the filter element, and the filling position of the adsorbent is also unchanged, part of the adsorbent cannot be fully contacted with the air flow, and the other part of the adsorbent can be saturated earlier. Through the opening, closing and opening of the notch, the airflow can be changed in a local flowing state, so that the effect of fully utilizing the adsorption material is achieved. The baffle is driven by the driving motor, and the control precision is high. The filter screen outside the notch can prevent the adsorption material from leaking through the notch. The flow regulating valve can control the flow of the connecting pipe, and the flow regulating valve is matched with the corresponding baffle plate, so that the local regulating effect of the air flow in the filter element can be improved. In addition, the invention further improves the adsorption rate of the adsorption material to PM2.5 by optimizing the composition ratio of the adsorption material.
Drawings
Fig. 1 is a block diagram of one embodiment of the present invention.
Fig. 2 is a top view of a chuck and drive head interface region in accordance with one embodiment of the invention.
In the figure: 1. a housing; 2. a slot; 3. a filter element; 4. a partition plate; 5. a rotation shaft; 6. a notch; 7. a baffle; 8. a chuck; 9. a chute; 10. a drive head; 11. a driving motor; 12. air holes; 13. an air inlet pipe; 14. an air outlet pipe; 15. a connecting pipe; 16. a filter screen; 17. a clamping groove; 18. a bayonet lock; 19. a flow regulating valve.
Detailed Description
Standard parts used in the invention can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, and the specific connection modes of the parts adopt conventional means such as mature bolts, rivets, welding, pasting and the like in the prior art, and the detailed description is omitted.
Referring to fig. 1-2, the embodiment includes a housing 1, a slot 2 is provided at the top of the housing 1, a filter element 3 is inserted into the slot 2, a plurality of parallel partition boards 4 are installed in the filter element 3, adsorption materials are filled between adjacent partition boards 4, air holes 12 are respectively provided on the left and right side walls of the filter element 3 between adjacent partition boards 4, a rotating shaft 5 is movably installed in the partition boards 4, a notch 6 is provided on the partition boards 4, a baffle 7 is installed in the notch 6, the baffle 7 is fixedly connected with the rotating shaft 5, clamping heads 8 in one-to-one correspondence with the rotating shaft 5 are provided on the side surface of the filter element 3, the clamping heads 8 are fixedly connected with the rotating shaft 5, sliding grooves 9 are provided on two sides of the slot 2, the clamping heads 8 are clamped in the sliding grooves 9, driving heads 10 are installed in the sliding grooves 9 and are connected with a driving motor 11, an air inlet pipe 13 and an air outlet pipe 14 are respectively installed at the top and bottom of the side wall of the housing 1, the air inlet pipe 13 and the air outlet pipe 14 are respectively communicated with the air holes 12 at the top and the bottom of the side wall of the filter element, a plurality of connecting pipes 15 are also installed on the side walls of the housing 1, two ends of the connecting pipes 15 are respectively communicated with two air holes 12 between the adjacent partition boards 4 on the same side as the filter element 3. A filter screen 16 is fixed on the outer side of the notch 6, and the baffle 7 is positioned in the filter screen 16. The clamping head 8 is provided with a clamping groove 17, and the driving head 10 is provided with a clamping pin 18 for inserting the clamping groove 17. The connection pipe 15 is provided with a flow rate regulating valve 19.
The manufacturing method of the PM2.5 adsorption device comprises the following steps:
A. manufacturing a shell 1 with a slot 2;
B. a driving head 10, a driving motor 11 and a connecting pipe 15 are arranged on the shell 1;
C. manufacturing a frame of the filter element 3, installing a baffle plate 4 preset with a rotating shaft 5 and a baffle plate 7 in the frame, filling adsorption materials into the filter element 3, and installing a clamping head 8 on the rotating shaft 5;
D. the filter element 3 is inserted into the slot 2, so that the clamping head 8 and the driving head 10 are ensured to be in inserted fit;
F. the housing 1 is carried to the mounting position, and the upper air inlet pipe 13 and the air outlet pipe 14 are connected.
The adsorption material consists of the following components in parts by weight,
37 parts of graphene, 15 parts of activated carbon, 60 parts of diatomite and 3 parts of cerium oxide.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. An adsorption device for PM2.5, which is characterized in that: comprises a shell (1), a slot (2) is arranged at the top of the shell (1), a filter element (3) is inserted in the slot (2), a plurality of mutually parallel partition boards (4) are arranged in the filter element (3), adsorption materials are filled between the adjacent partition boards (4), air holes (12) are respectively arranged on the left side wall and the right side wall of the filter element (3) between the adjacent partition boards (4), a rotating shaft (5) is movably arranged in the partition boards (4), a notch (6) is arranged on the partition boards (4), a baffle (7) is arranged in the notch (6), the baffle (7) is fixedly connected with the rotating shaft (5), clamping heads (8) corresponding to the rotating shaft (5) one by one are arranged on the side surface of the filter element (3), sliding grooves (9) are fixedly connected with the rotating shaft (5), driving heads (10) which are clamped with the clamping heads (8) are arranged in the sliding grooves (9), the driving heads (10) are connected with a driving motor (11), the top and the bottom of the side wall of the shell (1) are respectively provided with a gas inlet pipe (13) and a gas outlet pipe (14) which are respectively connected with the top of the side wall of the filter element (12), the side wall of the shell (1) is also provided with a plurality of connecting pipes (15), and two ends of each connecting pipe (15) are respectively communicated with two air holes (12) between the adjacent partition plates (4) on the same side of the filter element (3); a filter screen (16) is fixed at the outer side of the notch (6), and the baffle (7) is positioned in the filter screen (16); the clamping head (8) is provided with a clamping groove (17), and the driving head (10) is provided with a clamping pin (18) for inserting the clamping groove (17).
2. The PM2.5 adsorption apparatus according to claim 1, wherein: the connecting pipe (15) is provided with a flow regulating valve (19).
3. A method for manufacturing the PM2.5 adsorption apparatus according to any one of claims 1 to 2, comprising the steps of:
A. manufacturing a shell (1) with a slot (2);
B. a driving head (10), a driving motor (11) and a connecting pipe (15) are arranged on the shell (1);
C. manufacturing a frame of the filter element (3), installing a baffle plate (4) which is provided with a rotating shaft (5) and a baffle plate (7) in advance in the frame, then filling adsorption material into the filter element (3), and then installing a clamping head (8) on the rotating shaft (5);
D. the filter element (3) is inserted into a slot (2), so that the clamping head (8) and the driving head (10) are ensured to be in inserted fit;
F. the shell (1) is carried to the installation position, and the air inlet pipe (13) and the air outlet pipe (14) are connected.
4. A method for manufacturing an adsorption device for PM2.5 according to claim 3, characterized in that: the adsorption material consists of the following components in parts by weight,
35-40 parts of graphene, 15-20 parts of activated carbon, 50-60 parts of diatomite and 3-4 parts of cerium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110379337.8A CN112973365B (en) | 2021-04-08 | 2021-04-08 | PM2.5 adsorption device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110379337.8A CN112973365B (en) | 2021-04-08 | 2021-04-08 | PM2.5 adsorption device and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112973365A CN112973365A (en) | 2021-06-18 |
| CN112973365B true CN112973365B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110379337.8A Active CN112973365B (en) | 2021-04-08 | 2021-04-08 | PM2.5 adsorption device and manufacturing method thereof |
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Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4725290A (en) * | 1986-11-14 | 1988-02-16 | Kernforschungszentrum Karlsruhe Gmbh | Method for the purification of air or gas streams by a multi-path adsorption principle and moving-bed filtering apparatus for performing the method |
| CN2083064U (en) * | 1991-03-06 | 1991-08-21 | 北京有色金属研究总院 | Porous plate-type filter |
| DE4111832A1 (en) * | 1991-04-11 | 1992-10-15 | Kessler & Luch Gmbh | Air bio-filters - is an assembly of prefabricated modules for assembly on-site according to conditions |
| EP0689861A1 (en) * | 1994-06-24 | 1996-01-03 | Friatec Ag Keramik- Und Kunststoffwerke | Gas filter |
| JP2000229217A (en) * | 1999-02-09 | 2000-08-22 | Masaru Aizono | Method and device for removing harmful material in waste gas or the like from incineration furnace or the like |
| JP2002349245A (en) * | 2001-05-23 | 2002-12-04 | Futaba Industrial Co Ltd | Exhaust emission control device |
| CN102698680A (en) * | 2011-05-27 | 2012-10-03 | 欧阳秉利 | Large industrial microwave desulphurization denitrification terminal equipment for harmful gas environmental pollution treatment |
| DE102013017868A1 (en) * | 2012-12-20 | 2014-06-26 | Scheuch Gmbh | Filter device for cleaning air conditioning system in industrial surrounding field, has radio separation chamber arranged between filtration chamber and inlet opening, where filtration chamber is conductible by passage opening |
| CN104248908A (en) * | 2014-09-27 | 2014-12-31 | 深圳市鑫鸿发环保设备有限公司 | Concentrated acid mist purifying device |
| CN204485504U (en) * | 2015-03-10 | 2015-07-22 | 张卫东 | Spraying waste gas treatment device |
| CN106268100A (en) * | 2016-08-12 | 2017-01-04 | 山东神华山大能源环境有限公司 | A kind of improvement type gravel bed filter |
| CN107281890A (en) * | 2017-08-10 | 2017-10-24 | 无锡三达环保科技有限公司 | Pass in and out and fill side dumping absorbent charcoal adsorber in the integral signal shunting in air channel |
| CN107362647A (en) * | 2017-09-06 | 2017-11-21 | 上海瑞尔实业有限公司 | A kind of paint exhaust treatment device and method |
| CN209475836U (en) * | 2018-12-29 | 2019-10-11 | 江苏天祺环保科技有限公司 | VOCS industrial waste gas treatment device |
| WO2020068111A1 (en) * | 2018-09-28 | 2020-04-02 | Cummins Emission Solutions Inc. | Systems and methods for dynamic control of filtration efficiency and fuel economy |
| CN111359362A (en) * | 2020-04-28 | 2020-07-03 | 漯河职业技术学院 | Workshop dust treatment device |
| CN111472901A (en) * | 2020-04-16 | 2020-07-31 | 于世杰 | Low-consumption air filter for vehicle |
| CN212467679U (en) * | 2020-04-07 | 2021-02-05 | 淮安同新精细化工有限公司 | PP activated carbon adsorber with detachable structure |
| CN212549012U (en) * | 2020-06-11 | 2021-02-19 | 深圳市利源水务设计咨询有限公司 | Multistage filtering component and deodorizing multistage baffling bioreactor |
| CN215138229U (en) * | 2021-04-08 | 2021-12-14 | 华北电力大学科技学院 | PM 2.5's adsorption equipment |
-
2021
- 2021-04-08 CN CN202110379337.8A patent/CN112973365B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4725290A (en) * | 1986-11-14 | 1988-02-16 | Kernforschungszentrum Karlsruhe Gmbh | Method for the purification of air or gas streams by a multi-path adsorption principle and moving-bed filtering apparatus for performing the method |
| CN2083064U (en) * | 1991-03-06 | 1991-08-21 | 北京有色金属研究总院 | Porous plate-type filter |
| DE4111832A1 (en) * | 1991-04-11 | 1992-10-15 | Kessler & Luch Gmbh | Air bio-filters - is an assembly of prefabricated modules for assembly on-site according to conditions |
| EP0689861A1 (en) * | 1994-06-24 | 1996-01-03 | Friatec Ag Keramik- Und Kunststoffwerke | Gas filter |
| JP2000229217A (en) * | 1999-02-09 | 2000-08-22 | Masaru Aizono | Method and device for removing harmful material in waste gas or the like from incineration furnace or the like |
| JP2002349245A (en) * | 2001-05-23 | 2002-12-04 | Futaba Industrial Co Ltd | Exhaust emission control device |
| CN102698680A (en) * | 2011-05-27 | 2012-10-03 | 欧阳秉利 | Large industrial microwave desulphurization denitrification terminal equipment for harmful gas environmental pollution treatment |
| DE102013017868A1 (en) * | 2012-12-20 | 2014-06-26 | Scheuch Gmbh | Filter device for cleaning air conditioning system in industrial surrounding field, has radio separation chamber arranged between filtration chamber and inlet opening, where filtration chamber is conductible by passage opening |
| CN104248908A (en) * | 2014-09-27 | 2014-12-31 | 深圳市鑫鸿发环保设备有限公司 | Concentrated acid mist purifying device |
| CN204485504U (en) * | 2015-03-10 | 2015-07-22 | 张卫东 | Spraying waste gas treatment device |
| CN106268100A (en) * | 2016-08-12 | 2017-01-04 | 山东神华山大能源环境有限公司 | A kind of improvement type gravel bed filter |
| CN107281890A (en) * | 2017-08-10 | 2017-10-24 | 无锡三达环保科技有限公司 | Pass in and out and fill side dumping absorbent charcoal adsorber in the integral signal shunting in air channel |
| CN107362647A (en) * | 2017-09-06 | 2017-11-21 | 上海瑞尔实业有限公司 | A kind of paint exhaust treatment device and method |
| WO2020068111A1 (en) * | 2018-09-28 | 2020-04-02 | Cummins Emission Solutions Inc. | Systems and methods for dynamic control of filtration efficiency and fuel economy |
| CN209475836U (en) * | 2018-12-29 | 2019-10-11 | 江苏天祺环保科技有限公司 | VOCS industrial waste gas treatment device |
| CN212467679U (en) * | 2020-04-07 | 2021-02-05 | 淮安同新精细化工有限公司 | PP activated carbon adsorber with detachable structure |
| CN111472901A (en) * | 2020-04-16 | 2020-07-31 | 于世杰 | Low-consumption air filter for vehicle |
| CN111359362A (en) * | 2020-04-28 | 2020-07-03 | 漯河职业技术学院 | Workshop dust treatment device |
| CN212549012U (en) * | 2020-06-11 | 2021-02-19 | 深圳市利源水务设计咨询有限公司 | Multistage filtering component and deodorizing multistage baffling bioreactor |
| CN215138229U (en) * | 2021-04-08 | 2021-12-14 | 华北电力大学科技学院 | PM 2.5's adsorption equipment |
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| CN112973365A (en) | 2021-06-18 |
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