CN2863225Y - Leakage proof air filtration unit - Google Patents
Leakage proof air filtration unit Download PDFInfo
- Publication number
- CN2863225Y CN2863225Y CN 200520140347 CN200520140347U CN2863225Y CN 2863225 Y CN2863225 Y CN 2863225Y CN 200520140347 CN200520140347 CN 200520140347 CN 200520140347 U CN200520140347 U CN 200520140347U CN 2863225 Y CN2863225 Y CN 2863225Y
- Authority
- CN
- China
- Prior art keywords
- air
- filter
- sealing gasket
- shell
- frame
- 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
Links
- 238000001914 filtration Methods 0.000 title abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 230000006698 induction Effects 0.000 abstract 1
- 230000003749 cleanliness Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
An anti-leakage air filtering device comprises a shell and a filter arranged in the cavity of the shell. A rim is provided in the shell, and a sealing gasket is clipped between the filter and the rim. An air-conducting hole is provided on the flank of the rim adjacent to the sealing gasket, and a negative air-pressure chamber connecting to the air-conducting hole is provided in the rim. The negative air-pressure chamber is interconnected with an aspiration channel. If the high-pressure draught at the filter wind inlet leaks because of untightness at the sealing gasket, the high-pressure draught will be discharged out of the air filtering device through the negative air-pressure chamber and the aspiration channel because of negative pressure induction instead of entering the wind outlet of the filter through sealing gasket and affecting the purity of the air flow in pure area.
Description
Technical field
The utility model relates to a kind of air filter that becomes the resistance of clean gas flow to leak gas filtration.
Background technology
Prior art is referring to accompanying drawing 1 and accompanying drawing 2, a kind of air filter that hinders leakage, comprise shell, be arranged at the filter in the inner chamber of described shell, form first air chamber between one side of the inwall of described shell and filter, form second air chamber between the inwall of described shell and the another side of filter, be provided with frame in the described shell, clamp between described filter and the described frame sealing gasket is arranged, the installation of described filter is to rely on compact heap to compress filter, the stressed crush seal pad of filter, make sealing gasket compression, reach the effect of sealing.But because this mode that compresses is what time realizing on the pressured tight filter frame, often make the sealing gasket discontinuity to have the gap as shown in Figure 2, produce and leak.So this method can not reach positive confinement when reality is used, still have partly not the air of filtration, purification enters second air chamber in this gap.
Summary of the invention
The purpose of this utility model provides a kind of air filter that hinders leakage, can reduce the unfiltered air-flow that is leaked to second air chamber through sealing gasket.
The technical solution of the utility model is: a kind of air filter that hinders leakage, comprise shell, be arranged at the filter in the inner chamber of described shell, form first air chamber between one side of the inwall of described shell and filter, form second air chamber between the inwall of described shell and the another side of filter, be provided with frame in the described shell, clamp between described filter and the described frame sealing gasket is arranged, have passage on the side adjacent of described frame with sealing gasket, have the negative pressure chamber that is connected with passage in the described frame, be communicated with aspiration channel on the described negative pressure chamber.
Described negative pressure chamber be positioned at sealing gasket under.
Described aspiration channel extends outside the shell after through first air chamber.
Described passage has a plurality of and arranges around frame, and described negative pressure chamber extends to form closed passage along sealing gasket in frame.
The utility model compared with prior art has following advantage:
Because the sidepiece at sealing ring is provided with negative pressure chamber, if therefore at the high pressure draught of filter air intake because the imprecision at sealing gasket place and the leakage that may cause, can be because negative pressure-induced effect be discharged this air filter by negative pressure chamber and aspiration channel, enter the outlet air end of filter and and the cleanliness factor of clean area air-flow is exerted an influence and can not see through sealing gasket.
Description of drawings
Accompanying drawing 1 cuts open figure for the master of conventional air filter device;
Accompanying drawing 2 is the A place enlarged drawing of accompanying drawing 1;
Accompanying drawing 3 cuts open figure for master of the present utility model;
Accompanying drawing 4 is the B place enlarged drawing of accompanying drawing 3.
Wherein: 1, pressure fan 2, first air chamber 3, filter 4, compact heap 5, sealing gasket; 6, shell 7, second air chamber 8, clamping screw 9, gas outlet; 10, frame 11, aspiration channel; 12, negative pressure chamber 13, passage.
The specific embodiment
Referring to accompanying drawing 3 and accompanying drawing 4, a kind of air filter that hinders leakage, comprise shell 6, be arranged at the filter 3 in the inner chamber of described shell 6, form first air chamber 2 between one side of the inwall of described shell 6 and filter 3, form second air chamber 7 between the another side of the inwall of described shell 6 and filter 3, air-flow is sent into first air chamber 2 by pressure fan 1, export clean air-flow and enter second air chamber 7 through filter 3 backs, also be provided with frame 10 in the described shell 6, clamp between described filter 3 and the described frame 10 sealing gasket 5 is arranged, referring to accompanying drawing 3, have passage 13 on the side adjacent of described frame 10 with sealing gasket 5, has the negative pressure chamber 12 that is connected with passage 13 in the described frame 10, be communicated with aspiration channel 11 on this negative pressure chamber 12, and be positioned at sealing gasket 5 under, described aspiration channel 11 extends outside the shell 6 after through first air chamber 2, this aspiration channel 11 can be connected on the negative pressure source, also can directly be communicated in the atmosphere or the air inlet place of pressure fan 1.Referring to accompanying drawing 4, the air pressure of the high pressure draught in first air chamber 2 can be greater than the pressure in the negative pressure chamber 12, if because the leakage that the imprecision at sealing gasket 5 places may cause, can be because negative pressure-induced effect enters negative pressure chamber 12 by the passage under the sealing gasket 5 13, and through aspiration channel 11 these air filters of discharge, thereby avoid the air-flow cleanliness factor in second air chamber 7 is exerted an influence.
Claims (4)
1, a kind of air filter that hinders leakage, comprise shell (6), be arranged at the filter (3) in the inner chamber of described shell (6), form first air chamber (2) between one side of the inwall of described shell (6) and filter (3), form second air chamber (7) between the another side of the inwall of described shell (6) and filter (3), be provided with frame (10) in the described shell (6), clamp between described filter (3) and the described frame (10) sealing gasket (5) is arranged, it is characterized in that: have passage (13) on the side adjacent of described frame (10) with sealing gasket (5), have the negative pressure chamber (12) that is connected with passage (13) in the described frame (10), be communicated with aspiration channel (11) on the described negative pressure chamber (12).
2, the air filter that leaks of resistance according to claim 1 is characterized in that: described negative pressure chamber (12) be positioned at sealing gasket (5) under.
3, the air filter that leaks of resistance according to claim 1 is characterized in that: described aspiration channel (11) extends outside the shell (6) after through first air chamber (2).
4, the air filter of resistance leakage according to claim 1, it is characterized in that: described passage (13) has a plurality of and arranges around frame (10), and described negative pressure chamber (12) extends to form closed passage along sealing gasket (5) in frame (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520140347 CN2863225Y (en) | 2005-12-23 | 2005-12-23 | Leakage proof air filtration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520140347 CN2863225Y (en) | 2005-12-23 | 2005-12-23 | Leakage proof air filtration unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2863225Y true CN2863225Y (en) | 2007-01-31 |
Family
ID=37675678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520140347 Expired - Fee Related CN2863225Y (en) | 2005-12-23 | 2005-12-23 | Leakage proof air filtration unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2863225Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562365B (en) * | 2009-06-05 | 2011-12-07 | 中国原子能科学研究院 | Sealing device used between motor and structural component |
| WO2015043458A1 (en) * | 2013-09-24 | 2015-04-02 | 罗瑞真 | Air cleaning system |
| CN106016654A (en) * | 2016-08-03 | 2016-10-12 | 吉林清新伟业净化设备有限责任公司 | Negative-pressure efficient air supply outlet device |
-
2005
- 2005-12-23 CN CN 200520140347 patent/CN2863225Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101562365B (en) * | 2009-06-05 | 2011-12-07 | 中国原子能科学研究院 | Sealing device used between motor and structural component |
| WO2015043458A1 (en) * | 2013-09-24 | 2015-04-02 | 罗瑞真 | Air cleaning system |
| CN106016654A (en) * | 2016-08-03 | 2016-10-12 | 吉林清新伟业净化设备有限责任公司 | Negative-pressure efficient air supply outlet device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104088705B (en) | A kind of gas turbine inlet air system | |
| CN2863225Y (en) | Leakage proof air filtration unit | |
| CN204060938U (en) | Gas turbine inlet air system | |
| CN204799007U (en) | Leading oxidability mechanical type air filtration system of vehicle | |
| CN203303785U (en) | Sealing device for pulse bag type dust collector with air box | |
| CN2561966Y (en) | Air-inlet filtering silencer for air compressor | |
| CN2828384Y (en) | Fitting structure for pump cover of hyperfilevation blower pump and piston valve seat | |
| CN206837661U (en) | A kind of combination type air filter | |
| CN111017887B (en) | Air compression nitrogen device for production of finished oil | |
| CN216856023U (en) | Hydrogen production is with filtering purification equipment | |
| CN219014539U (en) | Indoor air purifying device | |
| CN220811983U (en) | Reverse osmosis water purification equipment | |
| CN104406284A (en) | Filter drum type efficient air supply outlet | |
| CN218725028U (en) | Air tightness detection instrument | |
| CN220677137U (en) | Inlet air filtering structure of oil-free vacuum compressor | |
| CN214861920U (en) | High-efficiency filter | |
| CN215276331U (en) | Novel high-efficient gas filter | |
| CN217855351U (en) | Remove peculiar smell active carbon adsorption and retrieve purifier | |
| CN215822794U (en) | Internal pressure type ultrafiltration membrane internal air pressure adjusting device | |
| CN219139173U (en) | Noise reduction assembly of nitrogen making machine | |
| CN213407771U (en) | Evacuating device that rotary evaporator used among food detection | |
| CN213144630U (en) | Air filter of engine | |
| CN220396027U (en) | Air inlet device for screw air compressor | |
| CN210512093U (en) | Frame negative pressure sealing dry type efficient air supply outlet | |
| CN203308682U (en) | Air inlet filter device for vacuum pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070131 Termination date: 20141223 |
|
| EXPY | Termination of patent right or utility model |