CN215085746U - Relative negative pressure sealed type high-efficiency filter system - Google Patents
Relative negative pressure sealed type high-efficiency filter system Download PDFInfo
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- CN215085746U CN215085746U CN202121614475.1U CN202121614475U CN215085746U CN 215085746 U CN215085746 U CN 215085746U CN 202121614475 U CN202121614475 U CN 202121614475U CN 215085746 U CN215085746 U CN 215085746U
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- efficiency filter
- static pressure
- air supply
- high efficiency
- air outlet
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Abstract
The utility model discloses a relative negative pressure canned type high efficiency filter system, including air supply static pressure case box and set gradually at the inside orifice plate, high efficiency filter and the scattered orifice plate that flow equalizes of box along the wind direction, install two stand pipes on the air supply static pressure case box, one will flow equalize orifice plate top and air outlet intercommunication, another will flow orifice plate below and air outlet intercommunication, all install trachea fast-assembling interface on the stand pipe that is located air outlet one end, trachea fast-assembling interface can be connected with PAO sample detection appearance. The utility model discloses increased two stand pipes in the system, and be located the trachea head of installation rapid disassembly structure on the stand pipe of air outlet, the PAO sample detection appearance of being convenient for is connected, realizes the PAO sample and the detection to relative negative pressure canned type high efficiency filter.
Description
Technical Field
The utility model relates to a high efficiency filter, specifically speaking relates to a relative negative pressure canned type high efficiency filter system.
Background
The high-efficiency filter is mainly used for filtering air by trapping particle dust and various suspended matters with the diameter of less than 0.5um in the air and is mainly applied to clean rooms. The Chinese utility model with the patent number of 2011201820279 discloses a relatively negative pressure sealing type high-efficiency filter system, which solves the problem that the clearance between a high-efficiency filter and an air supply static pressure box body affects the air purification effect in a mechanical compression mode; but does not have the PAO sampling detection function.
Disclosure of Invention
The utility model discloses an aim at has increased PAO sample detection function on current relative negative pressure canned type high efficiency filter system, has further perfected relative negative pressure canned type high efficiency filter system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a relatively negative pressure sealed high-efficiency filter system comprises an air supply static pressure box body, and a flow equalizing pore plate, a high-efficiency filter and a flow dispersing pore plate which are sequentially arranged in the box body along the wind direction, the lower end of the high-efficiency filter is connected with the inner wall of the box body of the air supply static pressure box through a supporting plate, while the upper end is connected with the inner wall of the box body of the air supply static pressure box through a connecting plate, the air supply static pressure box body between the supporting plate and the connecting plate is provided with a gas one-way flowing device for controlling air to flow from the inside of the air supply static pressure box body to the outside, two detection tubes are installed on the box body of the air supply static pressure box, one detection tube is used for communicating the upper part of the flow equalizing pore plate with the air outlet, the other detection tube is used for communicating the lower part of the flow equalizing pore plate with the air outlet, and air pipe quick-assembling interfaces are installed on the detection tubes located at one end of the air outlet and can be connected with a PAO sampling detector.
Furthermore, a thickened washer is arranged on the box body of the air supply static pressure box at the installation position of the gas one-way flow device.
Furthermore, a flange is arranged at the air inlet of the box body of the air supply static pressure box, and a stamping hole is processed on a flange plate of the flange.
Furthermore, the air outlet is fixedly provided with a shutter flow equalizing plate through a dust-accumulation-preventing nut column.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) two detection pipes are added in the system, and an air pipe head of a quick-release structure is arranged on the detection pipe positioned at an air outlet, so that the connection of a PAO sampling detector is facilitated, and the PAO sampling and detection of the relative negative pressure sealed type high-efficiency filter are realized;
(2) the thickened washer is arranged on the box body at the installation position of the gas unidirectional flow device, and the thickened washer is installed on the box body to facilitate installation of the gas unidirectional flow device;
(3) the service life of the anticorrosive coating on the surface of the product is prolonged by punching holes in advance on the flange plate of the air inlet without matching holes on site.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the present invention (with a part of the housing hidden).
Fig. 3 is a bottom view of the present invention.
The labels in the figure are: 1. a box body of the air supply static pressure box; 2. a flow equalizing pore plate; 3. a gas one-way flow device; 4. thickening the gasket; 5. a detection tube; 6. a gas pipe quick connector; 7. a flange; 8. punching a hole; 9. a shutter flow equalizing plate; 10. prevent laying dust nut post.
Detailed Description
The relatively negative pressure sealing type high-efficiency filter system provided by the embodiment is an improvement on the patent number 2011201820279, and the prior technical scheme mainly solves the problem of the gap between the high-efficiency filter and the air supply static pressure box body 1 in the traditional mechanical pressing mode, but still has the following problems: 1. the detection tube 5 is not installed, and the sampling and detection of PAO are difficult; 2. when the air supply static pressure box is used in detail, heat insulation cotton is attached to the outer side of the box body 1 of the air supply static pressure box, so that the installation of the gas one-way flow device 3 (a breather valve) is difficult; 3. the air inlet adopts the traditional flange 7, needs the on-site punching hole 8, leads to the surface coating to be destroyed, has shortened the life of device.
As shown in figure 1, the relatively negative pressure sealed type high-efficiency filter system comprises an air supply static pressure box body 1, and a flow equalizing pore plate 2, a high-efficiency filter and a flow dispersing pore plate which are sequentially arranged in the box body along the wind direction, the lower end of the high-efficiency filter is connected with the inner wall of the air supply static pressure box body 1 through a supporting plate, while the upper end is connected with the inner wall of the air supply static pressure box body 1 through a connecting plate, the air supply static pressure box body 1 between the supporting plate and the connecting plate is provided with a gas one-way flow device 3 for controlling the air to flow from the inside of the air supply static pressure box body 1 to the outside, the gas one-way flow device 3 mainly has the function of providing a discharge channel for the air entering the gap between the air supply static pressure box body 1 and the high-efficiency filter, while preventing air from directly entering the clean room, outside air is prevented from entering the inside of the plenum chamber body 1 through the passage. Based on the above functions, the gas unidirectional flow device 3 selects a commonly used respirator.
In the embodiment, two detection tubes 5 are added to the relative negative pressure sealed type high-efficiency filter system, as shown in fig. 2, one detection tube communicates the upper part of the flow equalizing pore plate 2 with the air outlet, the other detection tube communicates the lower part of the flow equalizing pore plate with the air outlet, the detection tube 5 is made of a stainless steel tube as a whole, a gas tube quick-assembly interface 6 is installed on the tube opening of the detection tube 5 positioned at the air outlet, and the gas tube quick-assembly interface 6 meets the national standard and is plug-and-play, fast, safe and leak-free; the PAO sampling detector can be connected with the PAO sampling detector quickly and conveniently, and PAO detection is realized.
This embodiment still just is located gaseous uniflow device 3 installation department on air supply static pressure case box 1 and is equipped with thickening packing ring 4, is convenient for install gaseous uniflow device 3, and whole static pressure case is wrapped up by the cotton that keeps warm when equipping the installation, is difficult to find breathes the vacant position, so increased thickening packing ring 4 and reserved this hole when conveniently keeping warm and prevent to be sheltered from by the cotton that keeps warm, the follow-up gaseous uniflow device 3 of installation of being convenient for.
This embodiment still sets up punching press hole 8 in advance on 7 dishes of flange of air intake department, and when 7 installations of traditional high-efficient supply-air outlet flange, drilling is joined in marriage to the scene, can destroy product surface anticorrosive coating and influence life-span, and this embodiment improves and increases the laser cutting hole site before surface treatment, does the fine protection product surface coating of surface treatment again.
When the shutter flow equalizing plate 9 is installed traditionally, self-tapping screws are adopted to be fixed on an air outlet, the surface of a product is damaged and rusted, dust falling in the self-tapping screws can fall out during disassembly and assembly, and the dust-deposition-preventing nut column 10 is adopted in the embodiment, so that the problem is solved, and the shutter flow equalizing plate is shown in fig. 3.
The above is only the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and the utility model should be covered in the protection scope of the present invention.
Claims (4)
1. The utility model provides a relative negative pressure canned type high efficiency filter system, includes air supply static pressure case box (1) and sets gradually the orifice plate (2), high efficiency filter and the orifice plate that flows that flow equalizes inside the box along the wind direction, high efficiency filter's lower extreme pass through the backup pad with the interior wall connection of air supply static pressure case box (1), and its upper end then through the interior wall connection of connecting plate with this air supply static pressure case box (1) be provided with on air supply static pressure case box (1) between backup pad and the connecting plate and be used for controlling the air from inside gaseous one-way flow device (3) that flow outside of air supply static pressure case box (1), its characterized in that: install two test tubes (5) on air supply plenum static pressure case box (1), one will flow equalize orifice plate (2) top and air outlet intercommunication, another will flow orifice plate below and air outlet intercommunication, all install trachea fast-assembling interface (6) on test tube (5) that are located air outlet one end, trachea fast-assembling interface (6) can be connected with PAO sample detector.
2. The relatively negative pressure canned type high efficiency filter system of claim 1, wherein: the air supply static pressure box body (1) at the installation position of the gas one-way flow device (3) is provided with a thickened gasket (4).
3. The relatively negative pressure canned type high efficiency filter system of claim 1, wherein: a flange (7) is installed at the air inlet and the air outlet of the air supply static pressure box body (1), and a stamping hole (8) is machined in a flange (7) disc of the flange (7).
4. The relatively negative pressure canned type high efficiency filter system of claim 1, wherein: the air outlet is fixedly provided with a shutter flow equalizing plate (9) through a dust-accumulation-preventing nut column (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121614475.1U CN215085746U (en) | 2021-07-15 | 2021-07-15 | Relative negative pressure sealed type high-efficiency filter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121614475.1U CN215085746U (en) | 2021-07-15 | 2021-07-15 | Relative negative pressure sealed type high-efficiency filter system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215085746U true CN215085746U (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121614475.1U Active CN215085746U (en) | 2021-07-15 | 2021-07-15 | Relative negative pressure sealed type high-efficiency filter system |
Country Status (1)
| Country | Link |
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| CN (1) | CN215085746U (en) |
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2021
- 2021-07-15 CN CN202121614475.1U patent/CN215085746U/en active Active
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