CN107115727A - A kind of air filter based on thick effect filter screen - Google Patents
A kind of air filter based on thick effect filter screen Download PDFInfo
- Publication number
- CN107115727A CN107115727A CN201710442021.2A CN201710442021A CN107115727A CN 107115727 A CN107115727 A CN 107115727A CN 201710442021 A CN201710442021 A CN 201710442021A CN 107115727 A CN107115727 A CN 107115727A
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- China
- Prior art keywords
- filter screen
- metal plate
- metal discharge
- air filter
- thick effect
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0032—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions using electrostatic forces to remove particles, e.g. electret filters
-
- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- 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
- B01D46/4245—Means for power supply or devices using electrical power in filters or filter elements
-
- 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
- B01D46/88—Replacing filter elements
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrostatic Separation (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a kind of air filter based on thick effect filter screen, belong to indoor air purification field.The device includes：The perforated metal plate installed successively along air-flow direction in insulation crust flow passage area, metal discharge silk, thick effect filter screen and wire netting can be being opened, in the non-flow passage area of insulation crust of opening provided with positive polarity out-put supply；The positive pole of power supply is connected with metal discharge silk, and the earthing pole of power supply is connected with perforated metal plate, wire netting respectively；Thick effect filter screen is detachably connected by fixed part with that can open insulation crust.The present apparatus carries out the enhancing of filter efficiency by the thick effect filter screen polarized portions between the particulate matter pre electrified part between perforated metal plate and metal discharge silk and metal discharge silk and wire netting, effect filter screen thick to individual layer；The present apparatus have it is simple in construction, occupy little space there is provided it is a kind of efficiently can remove indoor accelerated test to realize lower resistance for a long time in the way of.
Description
Technical field
The present invention relates to a kind of air filter based on thick effect filter screen, belong to indoor air purification equipment and technology neck
Domain.
Background technology
With the fast development of China's economic construction, also serious burden, China city PM are brought to environment10And PM2.5It is dense
Degree is far above world average level.
Existing numerous studies show that particulate matter can produce many negative effects to health, including：Pollen or other dirt
The infection that allergic reaction caused by angstrom, bacterium and fungi bring, acid, alkaline matter are to the stimulation of mucous membrane, and particulate matter is in people
The long-term damage that internal deposition is brought to PFT, the toxic action that the particulate matter of blood absorption is caused to human body, asbestos quartz
Etc. the meat fiber deformation brought, the carcinogenesis of chromate etc. etc..
Particulate matter in outdoor air enters architecture indoor by naturally osmotic and ventilation, is the main next of indoor accelerated test
Source.Meanwhile, the time that city dweller has more than 75% is spent indoors, and child, old man and pregnant woman's special population are indoors
The time spent is longer.Therefore, the problem of effectively reduction indoor accelerated test concentration is in the urgent need to address.
Common indoor accelerated test purification style includes：Mechanical filter, electrostatic precipitation and plasma purification etc., mesh
It is preceding that mechanical filter and electrostatic precipitation are most commonly used that in Civil Air Conditioning System, and based on mechanical filter.Existing mechanical mistake
Filter uses fabric screen, but fabric screen can produce high resistance while high efficiency filter is realized, therefore can bring more
Serious high-frequency noise and high energy consumption.Electrostatic precipitator, which then has, is also easy to produce that a large amount of ozone, bulky, dust containing capacity are small etc. to be lacked
Point.
To realize lower resistance, high efficiency, and the generation of ozone is reduced, occur in that some will filtering and electrostatical binding in recent years
The purifier come, such as：Electret air filter and the electric type electret air filter of load, but can after use a period of time
There is the phenomenon that efficiency declines.This is due to that ambient humidity can significantly influence the electric charge of electret in electret air filter
Storage life so that the electric field of electret surface generation does not simultaneously have permanent character；For carrying electric type electret air filter
It is due to then that absorption can not gradually be accumulated in the electrically charged particle thing of internal dielectric surfaces by charge-conduction to pole plate in dielectric surface
The electrical potential difference between collecting plate certainly will be for a long time reduced, the electrically charged particle thing after being allowed to is more difficult to be trapped by collecting plate, so that particle
Thing purification efficiency declines, it is necessary to clean to keep purification efficiency often.Simultaneously for above-mentioned two classes filter, " the honeycomb in it
Shape " dust cavity is narrower long and narrow, bulky, and the installation, maintenance and cleaning to purifier also result in certain difficulty.
Therefore, need badly it is a kind of can realize steadily in the long term high-efficiency low-resistance remove particulate matter purifier.
The content of the invention
In order to overcome in the prior art resistance it is big, or dust containing capacity is small, using occurring that efficiency declines after a period of time
Shortcoming, the present invention provides a kind of motorless use special construction and carries out particulate matter pre electrified and the air filtration dress of filter screen polarization
Put, its filter screen slightly imitates filter screen using individual layer, can realize that lower resistance efficiently removes particulate matter for a long time, and occupy little space.
To achieve the above object, the purpose of the present invention is mainly achieved through the following technical solutions：
A kind of air filter based on thick effect filter screen, it is characterised in that including：Insulation crust (1) stream can opened
Perforated metal plate (3), slightly metal discharge silk (4), effect filter screen (6) and the gold installed successively along air-flow direction in road region
Belong to net (7), in the non-flow passage area of insulation crust of opening provided with power supply (2)；Positioned at flow passage area and perpendicular to air stream
The insulation crust (1) of opening in dynamic direction is open end；Wherein, the positive pole of power supply (2) is connected with metal discharge silk (4), power supply
(2) earthing pole is connected with perforated metal plate (3), wire netting (7) respectively；The perforated metal plate (3) and metal discharge silk
(4) distance, is left between metal discharge silk (4) and thick effect filter screen (6), slightly effect filter screen (6) is fitted setting with wire netting (7),
Thick effect filter screen (6) is detachably connected by fixed part (5) with that can open insulation crust (1).
The polarity of the power supply (2) is just.
The metal discharge silk (4) is connected simultaneously using 1 a diameter of below 0.5mm molybdenum filament or tungsten filament by coiled fashion
Parallel arrangement.
The distance left between the perforated metal plate (3) and metal discharge silk (4) is 8~20mm；The metal discharge
The distance that distance is left between silk (4) and thick effect filter screen (6) is 8~40mm, and is put more than or equal to perforated metal plate (3) with metal
The distance left between electrical filament (4).
The beneficial effects of the present invention are：
It is contemplated that low-resistance, efficiently removing indoor accelerated test, and it is effectively increased dust containing capacity so that in use
The operating efficiency of the present apparatus is not less than initial level, so as to effectively extend the life cycle of such air filter.The present invention
On the basis of existing low efficient filter, pass through the perforated metal plate that connects earthing pole and the metal discharge silk group that is connected positive source
Into particulate matter pre electrified part, particulate matter is become positively charged；By connecting the metal discharge silk of positive source with being connected ground connection
The filter screen polarized portions of the wire netting composition of pole, produce polarization by filter screen, that is, cause filter screen fiber surface positive and negative charge occur
Separation.So as to further make charged particle thing be polarized filter screen capture.Because using thick effect filter screen, the air filter is in reality
While now efficient, resistance is very low, and is not in the phenomenon of efficiency decay during use.Filter screen can be according to certainly simultaneously
Body feature takes the mode changed or cleaned to be updated, and openable insulation crust and filter screen fixed part can be used for peace installation and dismantling
Filter screen is unloaded, so as to realize the recycling of the present apparatus.
In summary, the present invention is simple in construction, occupies little space and can realize low-resistance for a long time there is provided one kind, efficiently goes
Except the mode of indoor accelerated test.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the invention.
Fig. 2 is the schematic diagram along line C-C in Fig. 1；
Fig. 3 is the diagrammatic cross-section of perforated metal plate；
In figure：1-insulation crust, 2 power supplys, 3-perforated metal plate, 4-metal discharge silk, 5-fixed part, 6-slightly imitate
Filter screen, 7-wire netting.
Embodiment
Below in conjunction with the accompanying drawings, technical scheme is further described.
A kind of air filter based on thick effect filter screen for indoor accelerated test, overall structure is as shown in figure 1, the dress
Put including：It is laid in the metal discharge silk 4 that can be opened in the flow passage area of insulation crust 1, perforated metal plate 3, wire netting 7 and thick
Imitate filter screen 6, the non-flow passage area of insulation crust 1 be provided with power supply 2, positioned at flow passage area and perpendicular to air-flow direction can
Unlatching insulation crust 1 is open end；Wherein, the positive pole of power supply 2 and metal discharge silk 4 is connected, the earthing pole of power supply 2 respectively with band
Mesoporous metal plate 3, wire netting 7 are connected；Band is installed successively along air-flow direction (direction from A to B i.e. shown in Fig. 1) in runner
Mesoporous metal plate 3, metal discharge silk 4, thick effect filter screen 6 and wire netting 7, perforated metal plate 3 and metal discharge silk 4, metal discharge
At least 8mm intervals are left between silk 4 and thick effect filter screen 6, with the power supply short circuit for avoiding air breakdown from bringing, thick effect filter screen 6 and gold
Category net 7 is fitted；Thick effect filter screen 6 is detachably connected by fixed part 5 with insulation crust 1, and fixed part 5 is used to mount and dismount thick effect
Filter screen 6.
The polarity of power supply 2 in air filter of the present invention is just, to reduce ozone generation.
The embodiment and function of each part of the present invention are as follows：
The air flow channel (in addition to air inlet A, air outlet B) and power supply 2 of the air filter are wrapped by insulation crust 1
Dress.Insulation crust 1 can be opened, facilitate apparatus for examination and repair and change filter screen, can opening section sealed using silicon rubber bar.This
It is 6mm polyethylene as insulating blanket material that embodiment, which uses thickness,.Air flow channel sectional dimension is 0.3m × 0.2m.
Power supply 2：From direct current positive electricity power supply ,+7~+15kV outputs, to ensure to occur corona discharge, ozone is produced simultaneously
Raw amount is few.The dc source of the present embodiment use+10kV outputs.
Perforated metal plate 3：The thickness of the perforated metal plate is no more than 3mm, is made from copper or stainless steel material, hole is uniform
Distribution, opening diameter is 10~20mm, perforated area accounts for 2nd/1 to three/2nds of whole plate area, and verge of opening is provided with 30
~60 degree of chamfering.The present embodiment uses thickness for 2mm copper coin, opens circular hole, bore dia 20mm, and verge of opening has 45 degree
Chamfering, such as Fig. 3, perforated area account for 1/2nd of whole metallic plate area.
Metal discharge silk 4：From a diameter of below 0.5mm tungsten filament or molybdenum filament.Such as Fig. 2, metal discharge silk 4 is by independent one
One metal wire is coiled to form, and is connected and arranged in parallel between adjacent wire, and wire spacing is 15~30mm, the metal discharge
Silk and the insulating cement adhesion of insulation crust contact portion, covering.The present embodiment uses a diameter of 0.2mm molybdenum filament, phase after coiling
The spacing of adjacent molybdenum filament is 20mm, and metal discharge 4 place planes of silk and the place plan range of perforated metal plate 3 are 10mm, and metal is put
The place plane of electrical filament 4 is 35mm with the place plan range of wire netting 7.
Fixed part 5：It is made, is fixed on the side wall of insulation crust 1 from the block frame-shaped material of insulation.The present embodiment is used
2 pieces of outer sectional dimensions are 0.3m × 0.2m, the rectangle organic glass frame that inner section size is 0.26 × 0.16m, thickness is 6mm
As the fixed part 5 of filter screen, thick effect filter screen 6 and wire netting 7 are clamped between two frameworks.
Thick effect filter screen 6：From the relatively low filter screen of resistance, in the case that face velocity is 1m/s, filter screen resistance is less than 20Pa,
It is usually thick effect filter screen, thickness is no more than 15mm；The thick effect filter screen uses one or more combinations in following material to be made：
Polyethylene, polypropylene, polyurethane, nylon, activated carbon and polyethylene terephthalate (PET).The present embodiment is using poly- pair
PET (PET) individual layer slightly imitates filter screen, and thickness is 10mm,.Filter screen fibre diameter is 30~50 μm.
Wire netting 7：It is made from copper or stainless steel material, mesh number is no more than 18, and thickness is no more than 2mm.The present embodiment is adopted
With the stainless steel cloth of 8 mesh, thickness is 1mm.
It is particulate matter pre electrified portion between perforated metal plate 3 and metal discharge silk 4 in air filter of the present invention
Point, it is filter screen polarized portions between metal discharge silk 4 and wire netting 7, realizes that electric field intensity is acted on jointly by the two parts.Gold
The distance for belonging to discharge wire 4 and perforated metal plate 3 is 8~20mm：Power supply short circuit not less than 8mm to avoid air breakdown from bringing；
No more than 20mm is with abundant carry out that to discharge.The distance of metal discharge silk 4 and primary filter screen 6 is 8~40mm, and not less than gold
Belong to discharge wire 4 and the distance of perforated metal plate 3：Power supply short circuit not less than 8mm to avoid air breakdown from bringing；Not less than metal
Discharge wire 4 and the distance of perforated metal plate 3 are make it that only form electric field between metal discharge silk 4 and primary filter screen 7 enters to filter screen
Row polarization, does not discharge；No more than 40mm ensures the filter efficiency of device to keep higher polarized electric field intensity.
The running of the present embodiment is：The air filter is placed in air channel or at air outlet, makes sky to be filtered
Gas is passed through by the direction from A to B, then switches on power 2, you can operation air filtration pattern.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention.All essences in the present invention
God and any modification made within principle, on an equal basis replacement and improvement etc., should be included in the scope of the protection.
Claims (9)
1. a kind of air filter based on thick effect filter screen, it is characterised in that including：Insulation crust (1) runner can opened
Perforated metal plate (3), slightly metal discharge silk (4), effect filter screen (6) and the metal installed successively along air-flow direction in region
Net (7), in the non-flow passage area of insulation crust of opening provided with power supply (2)；Positioned at flow passage area and perpendicular to air flow
The insulation crust (1) of opening in direction is open end；Wherein, the positive pole of power supply (2) is connected with metal discharge silk (4), power supply (2)
Earthing pole be connected respectively with perforated metal plate (3), wire netting (7)；The perforated metal plate (3) and metal discharge silk (4), gold
Distance is left between category discharge wire (4) and thick effect filter screen (6), filter screen (6) is slightly imitated and fit with wire netting (7) setting, slightly imitate and filter
Net (6) is detachably connected by fixed part (5) with that can open insulation crust (1).
2. air filter according to claim 1, it is characterised in that the polarity of the power supply (2) is just.
3. air filter according to claim 1, it is characterised in that the metal discharge silk (4) is using 1 diameter
Connect and be arranged in parallel by coiled fashion for below 0.5mm molybdenum filament or tungsten filament.
4. air filter according to claim 3, it is characterised in that the metal discharge silk (4), adjacent two
Metal discharge silk spacing is 15~30mm.
5. air filter according to claim 1, it is characterised in that the perforate on the perforated metal plate (3) is equal
Even distribution, perforate is 10~20mm of diameter circular hole, and verge of opening is provided with 30~60 degree of chamfering；Perforated area accounts for whole plate face
Long-pending 2/1 to three/2nds.
6. air filter according to claim 1, it is characterised in that the perforated metal plate (3) and wire netting (7)
It is made by copper or stainless steel, thickness, which is respectively less than, is equal to 3mm.
7. air filter according to claim 1, it is characterised in that the perforated metal plate (3) and metal discharge
The distance left between silk (4) is 8~20mm；The distance of distance is left between the metal discharge silk (4) and thick effect filter screen (6)
For 8~40mm, and more than or equal to the distance left between perforated metal plate (3) and metal discharge thread (4).
8. air filter according to claim 1, it is characterised in that the thick effect filter screen (6) is individual layer, and thickness is small
In equal to 15mm.
9. air filter according to claim 8, it is characterised in that the thick effect filter screen (6) is using following a kind of
Or multiple material combination is made：Polyethylene, polypropylene, polyurethane, nylon, activated carbon and polyethylene terephthalate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442021.2A CN107115727B (en) | 2017-06-13 | 2017-06-13 | Air filtering device based on coarse filter screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442021.2A CN107115727B (en) | 2017-06-13 | 2017-06-13 | Air filtering device based on coarse filter screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107115727A true CN107115727A (en) | 2017-09-01 |
| CN107115727B CN107115727B (en) | 2023-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710442021.2A Active CN107115727B (en) | 2017-06-13 | 2017-06-13 | Air filtering device based on coarse filter screen |
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| Country | Link |
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| CN (1) | CN107115727B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899341A (en) * | 2017-10-27 | 2018-04-13 | 广州广大气治理工程有限公司 | A kind of electrolemma deduster of minimum discharge |
| CN107965862A (en) * | 2017-10-27 | 2018-04-27 | 冯肇霖 | A kind of electrolemma air cleaner of the high-efficient purification PM2.5 of induc- tion charging effect |
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| US4716022A (en) * | 1985-11-04 | 1987-12-29 | Priestley Jr Joseph B | Particle treatment apparatus |
| CN1282634A (en) * | 2000-09-02 | 2001-02-07 | 四川长虹电器股份有限公司 | Electronic dust collector |
| CN202263644U (en) * | 2011-09-20 | 2012-06-06 | 汕头市银河环境设计有限公司 | Electric dust removing device |
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| CN102958264A (en) * | 2012-11-20 | 2013-03-06 | 浙江大学 | Plasma generation device and method based on back corona creeping-surface breakdown of catalyst as well as application thereof |
| CN104501311A (en) * | 2014-11-28 | 2015-04-08 | 江苏大学 | Indoor air purifying method and indoor air purifying device |
| CN204678558U (en) * | 2015-05-20 | 2015-09-30 | 董坤 | A kind of electrostatic spray fresh air purification device |
| CN106642396A (en) * | 2017-02-04 | 2017-05-10 | 深圳市力德环保工程有限公司 | Integrated composite air purifier and air purification method |
| CN207042144U (en) * | 2017-06-13 | 2018-02-27 | 清华大学 | A kind of air filter based on thick effect filter screen |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4716022A (en) * | 1985-11-04 | 1987-12-29 | Priestley Jr Joseph B | Particle treatment apparatus |
| CN1282634A (en) * | 2000-09-02 | 2001-02-07 | 四川长虹电器股份有限公司 | Electronic dust collector |
| CN202263644U (en) * | 2011-09-20 | 2012-06-06 | 汕头市银河环境设计有限公司 | Electric dust removing device |
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| CN104501311A (en) * | 2014-11-28 | 2015-04-08 | 江苏大学 | Indoor air purifying method and indoor air purifying device |
| CN204678558U (en) * | 2015-05-20 | 2015-09-30 | 董坤 | A kind of electrostatic spray fresh air purification device |
| CN106642396A (en) * | 2017-02-04 | 2017-05-10 | 深圳市力德环保工程有限公司 | Integrated composite air purifier and air purification method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899341A (en) * | 2017-10-27 | 2018-04-13 | 广州广大气治理工程有限公司 | A kind of electrolemma deduster of minimum discharge |
| CN107965862A (en) * | 2017-10-27 | 2018-04-27 | 冯肇霖 | A kind of electrolemma air cleaner of the high-efficient purification PM2.5 of induc- tion charging effect |
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| Publication number | Publication date |
|---|---|
| CN107115727B (en) | 2023-08-01 |
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