CN2471395Y - Self-cleaning dust-collecting filter - Google Patents
Self-cleaning dust-collecting filter Download PDFInfo
- Publication number
- CN2471395Y CN2471395Y CN 01218194 CN01218194U CN2471395Y CN 2471395 Y CN2471395 Y CN 2471395Y CN 01218194 CN01218194 CN 01218194 CN 01218194 U CN01218194 U CN 01218194U CN 2471395 Y CN2471395 Y CN 2471395Y
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- CN
- China
- Prior art keywords
- filter cylinder
- filter
- dust
- self
- blowpipe
- Prior art date
- 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.)
- Expired - Fee Related
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A self dust-removal filter comprises a shell, an inlet and outlet air opening, a filter cylinder, a diaphragm valve, a back flushing blowpipe and a dust collection bucket in the lower part of the filter cylinder. A filter cylinder layer of isolation and a pressure difference sensor are arranged between the inlet air opening and outlet air opening. The output terminal of the pressure difference sensor is connected with the control terminal of the diaphragm valve which is connected with the back flushing blowpipe aiming at the filter cylinder. The inlet air opening is additionally provided with a frame filter, the shape of which is frustum. The utility model has a high efficiency of dust removal and prolongs the service life of the filter cylinder which will not cause the second pollution.
Description
The utility model relates to a kind of dust removal filter, especially the structure of self-cleaning dust removal filter.
Dust removal filter is to use equipment very widely; no matter be the protection environment demand also or exempt from the evil of dust in order to ensure the air force equipment of costliness; reduce to greatest extent and shut down number of times and maintenance load; will reduce the dust content that sucks air to greatest extent; wearing and tearing, fouling and the corrosion of avoiding device interior to cause because of dust all will be installed dust removal filter.
Existing dust removal filter mainly contains self-cleaning strainer and bag-type dusting filter, the filter cylinder life-span of former self-cleaning strainer is shorter, generally has only a year and a half, another deficiency of self-cleaning strainer is that recoil is when carrying out stripping to filter cylinder, dust causes secondary pollution easily, the bag-type dusting filter is damaged easily, and it uses convenient not as good as self-cleaning strainer.
The purpose of this utility model is: overcome the deficiency of existing self-cleaning dust removal filter, a kind of efficiency of dust collection height is provided, prolong the filter cylinder life-span, dust was difficult for causing the self-cleaning dust removal filter of secondary pollution when filter cylinder was carried out stripping.
The purpose of this utility model is achieved in that a kind of self-cleaning dust removal filter, comprise compositions such as housing, inlet and outlet, filter cylinder, pulse valve, recoil blowpipe, dust hopper, it is isolated to be provided with the filter cylinder layer between air inlet and the air outlet, between air inlet and the air outlet differential pressure pickup is housed, the differential pressure pickup output connects the pulse valve control end, the recoil blowpipe connects pulse valve and aims at filter cylinder, dust hopper is in the filter cylinder bottom, it is characterized in that: be provided with plate filter in the air intake porch, filter cylinder be shaped as taper type.
Further improvement of the utility model is: be provided with the filter cylinder of many parallel connections, the star ash ejector is installed in the dust hopper bottom.
Its operation principle is: dust laden air is inhaled into, carrying out the first order from the suction of deckle board formula filter filters, the bulky grain dust of elimination 〉=5 μ, efficient can reach about 75%, and the efficient filter cylinders works of organizing of level filter the particulate dust of elimination 〉=1 μ for the second time after the warp again, efficient can reach more than 99%, because comprehensive functions such as gravity, inertial collisions, dust is attracted to tapered taper filter cylinder outer surface, and pure air is discharged by outlet.By differential pressure pickup, when after after the many groups of level filter cylinders are stopped up by dust, the turnover air scoop just has pressure differential, is set in that (as being controlled at 500Pa) control impuls valve carries out blowback automatically under certain pressure reduction condition, dust is discharged automatically by the star ash ejector.
Characteristics of the present utility model are: the precision of cascade filtration and efficient improve, and resistance is little, and the long service life of back level filter cylinder can reach about 3 years; Operating cost is low, and the frame coarse filter can repeatedly clean, reuse; The many groups of back level filter cylinder adopts fiber filtering, can be suitable for demanding cleaning equipment; Because the design of taper filter cylinder, dust comes off easily when carrying out stripping, and dust is easy to be collected; By differential pressure pickup, and the control impuls valve carries out blowback control automatically; The utility model volume is little, in light weight, easy for installation, use reliable.
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment:
Fig. 1 is the utility model structural representation
As shown in the figure, self-cleaning dust removal filter, comprise compositions such as housing 8, inlet and outlet 13,10, filter cylinder 2, pulse valve 4, recoil blowpipe 5, dust hopper 7,6 is the blowpipe nozzle, the filtering layer that is provided with filter cylinder 2 between air inlet and the air outlet is isolated, differential pressure pickup 14 is housed between air inlet and the air outlet, its output control terminal connects pulse valve, the recoil blowpipe connects pulse valve and aims at filter cylinder, dust hopper 7 is in the bottom of many group filter cylinders, be provided with plate filter 1 in the air intake porch, filter cylinder be shaped as taper.Star ash ejector 11 is installed in the dust hopper bottom.The 12nd, the motor and the speed changer of driving ash ejector also can be used spiral ash ejector.The bottom area of taper filter cylinder is little, helping dust falls and sedimentation, there is not the dust of sedimentation to be attracted on the taper filter cylinder, by differential manometer or timing controlled pulse valve control compressed air filter cylinder is carried out blowback, in order to improve blowback efficient, the utility model in the upper design of taper filter cylinder have the Venturi tube 3 of narrow bore, the recoil blowpipe is aimed at filter cylinder again by Venturi tube, 9 is clean air chamber.
Typical technical parameter is: handle air capacity (200M
3/ min) filtering accuracy 〉=1 μ, filter efficiency 〉=99.8% ,≤100Pa is decreased in initial resistance; Recoil air pressure 0.6-0。8MPa, consumption of compressed air amount 0.025M
3/min
Claims (3)
1, a kind of self-cleaning dust removal filter, comprise compositions such as housing, inlet and outlet, filter cylinder, pulse valve, recoil blowpipe, dust hopper, it is isolated to be provided with the filter cylinder layer between air inlet and the air outlet, between air inlet and the air outlet differential pressure pickup is housed, the differential pressure pickup output connects the pulse valve control end, and the recoil blowpipe connects pulse valve and aims at filter cylinder, and dust hopper is in the filter cylinder bottom, it is characterized in that being provided with plate filter in addition in the air intake porch, described filter cylinder be shaped as taper type.
2, by the described self-cleaning dust removal filter of claim 1, it is characterized in that described filter cylinder is the filter cylinder of many parallel connections, the star ash ejector is installed in the dust hopper bottom.
3, by the described self-cleaning dust removal filter of claim 1, it is characterized in that the top of taper filter cylinder is provided with the Venturi tube with narrow bore, Venturi tube is between recoil blowpipe and accurate filter cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01218194 CN2471395Y (en) | 2001-04-05 | 2001-04-05 | Self-cleaning dust-collecting filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01218194 CN2471395Y (en) | 2001-04-05 | 2001-04-05 | Self-cleaning dust-collecting filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2471395Y true CN2471395Y (en) | 2002-01-16 |
Family
ID=33636272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01218194 Expired - Fee Related CN2471395Y (en) | 2001-04-05 | 2001-04-05 | Self-cleaning dust-collecting filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2471395Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384507C (en) * | 2006-03-14 | 2008-04-30 | 镇江华强电力设备厂 | Pulse self-cleaning type air filter |
| CN101893295A (en) * | 2010-07-20 | 2010-11-24 | 苏州大学 | Fresh air handling unit |
-
2001
- 2001-04-05 CN CN 01218194 patent/CN2471395Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384507C (en) * | 2006-03-14 | 2008-04-30 | 镇江华强电力设备厂 | Pulse self-cleaning type air filter |
| CN101893295A (en) * | 2010-07-20 | 2010-11-24 | 苏州大学 | Fresh air handling unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |