CN211977196U - Hundred-grade vertical laminar flow cover with double-sealing structure - Google Patents
Hundred-grade vertical laminar flow cover with double-sealing structure Download PDFInfo
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- CN211977196U CN211977196U CN201922183128.7U CN201922183128U CN211977196U CN 211977196 U CN211977196 U CN 211977196U CN 201922183128 U CN201922183128 U CN 201922183128U CN 211977196 U CN211977196 U CN 211977196U
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Abstract
The utility model relates to a laminar flow hood field discloses a hundred grades of perpendicular laminar flow hoods of double containment structure. The device comprises a base, a laminar flow cover outer shell, a laminar flow cover inner shell, a box body, a high-efficiency filter, a flow equalizing film, a sealing frame and an annular sealing gasket. Install the laminar flow cover shell on the base, install the box in the laminar flow cover shell, be provided with the homoflow membrane in the outside of box, install high efficiency filter on the box, be provided with sealed frame in one side of high efficiency filter, be provided with the laminar flow cover inner shell on sealed frame, be provided with annular seal ring at high efficiency filter's top. The utility model discloses an adopt installed part, sealed frame and ring seal ring's setting, prevented that laminar flow hood from appearing leaking and not hard up the condition, improved laminar flow hood's sealing performance. Through the setting that adopts laminar flow cover inside and outside shell, make laminar flow cover have the negative pressure chamber, can effectually get rid of the interior dust blowing of laminar flow cover, improve laminar flow cover's cleanliness factor.
Description
Technical Field
The utility model relates to a laminar flow hood field, in particular to double containment structure's hundred grades of perpendicular laminar flow hoods.
Background
Laminar flow hoods are devices that shield operators from the product and their primary purpose is to avoid product contamination. Air is drawn from the clean room and then filtered vertically through the operating area by HEPA using a fan mounted in the top plenum to provide unidirectional flow air to the critical area. The exhaust gases are discharged from below and returned to the clean room area. The existing hundred-grade laminar flow cover is not tightly sealed at the joint with the filter, and after the cover is used for a period of time, the phenomena of leakage and looseness easily occur, so that the sealing performance of the laminar flow cover is reduced, and the service life of the laminar flow cover is shortened.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a hundred grades of perpendicular laminar flow covers of double containment structure through the setting that adopts installed part, sealed frame and ring seal ring, has prevented that the laminar flow cover from appearing leaking and the not hard up condition, has improved the sealing performance of laminar flow cover. Through the setting that adopts laminar flow cover inside and outside shell, make laminar flow cover have the negative pressure chamber, can effectually get rid of the interior dust blowing of laminar flow cover, improve laminar flow cover's cleanliness factor. Through setting up the flow equalizing membrane, the state of indiscriminate stream can not appear in making the laminar flow cover, has improved the cleanliness factor in the laminar flow cover.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a hundred-grade vertical laminar flow hood with a double-sealing structure comprises a base, a laminar flow hood outer shell, a laminar flow hood inner shell, a box body, a fan, a high-efficiency filter and a flow-equalizing membrane; the laminar flow hood shell is installed on the base, the box body is installed in the laminar flow hood shell, and the flow equalizing film is arranged on the outer side of the box body; a groove is formed in the middle of the box body, the high-efficiency filter is installed in the groove, and the sealing frame is fixedly installed at the joint of the groove and the high-efficiency filter through an installation piece; the laminar flow cover inner shell is arranged on the sealing frame and connected with the top of the high-efficiency filter through the annular sealing gasket; the fan is arranged above the high-efficiency filter and positioned in the inner shell of the laminar flow hood.
As a preferred scheme of the utility model, the mounting piece comprises a stud, a screwing nut and a pressing block; the pressing block is of an L-shaped structure, one end of the pressing block abuts against the groove, and the stud is sealed through the screwing nut.
As an optimal scheme of the utility model be provided with liquid sealant in the recess, liquid sealant submerges the bottom of sealed frame.
As an optimal scheme of the utility model, be formed with the negative pressure chamber that is used for getting rid of the interior dust of laminar flow cover between laminar flow cover shell and the laminar flow cover inner shell.
As an optimal scheme the last differential pressure gauge that is used for detecting gas in the laminar flow cover and the touch-sensitive screen controller who makes the return air orifice plate that has circulating air flow in the laminar flow cover and adjust the wind speed of installing of laminar flow cover shell.
As an optimal scheme of the utility model be provided with four hoisting seats on the laminar flow hood shell.
As an optimal proposal of the utility model, a lighting lamp is arranged in the laminar flow hood shell.
To sum up, the utility model discloses following beneficial effect has: the utility model discloses an adopt installed part, sealed frame and ring seal ring's setting, prevented that laminar flow hood from appearing leaking and not hard up the condition, improved laminar flow hood's sealing performance. Through the setting that adopts laminar flow cover inside and outside shell, make laminar flow cover have the negative pressure chamber, can effectually get rid of the interior dust blowing of laminar flow cover, improve laminar flow cover's cleanliness factor. Through setting up the flow equalizing membrane, the state of indiscriminate stream can not appear in making the laminar flow cover, has improved the cleanliness factor in the laminar flow cover.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic side view of the present invention.
Fig. 3 is a schematic diagram of the local enlarged structure of the present invention.
Fig. 4 is a schematic top view of the present invention.
Fig. 5 is a schematic perspective view of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1-pressure difference meter 2-lifting seat 3-air return pore plate 4-touch screen controller
5-base 6-box 7-sealing frame 8-mounting piece
9-high efficiency filter 10-annular sealing washer 11-laminar flow hood inner shell 12-laminar flow hood outer shell
13-pressing block 14-fan 15-illuminating lamp 16-flow equalizing film
17-liquid sealant 18-stud 19-screwing nut 20-groove
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Examples
As shown in fig. 1 to 5, the utility model relates to a double-sealing structure hundred grades of perpendicular laminar flow hoods, including base 5, laminar flow hood shell 12, laminar flow hood inner shell 11, box 6, fan 14, high efficiency filter 9 and the membrane 16 that flow equalizes.
Specifically, install laminar flow cover shell 12 on base 5, install box 6 in laminar flow cover shell 12, be provided with flow equalizing membrane 16 in the outside of box 6, flow equalizing membrane 16 sets up on the air-out face of equipment, and the state of indiscriminate stream can not appear in mainly making the laminar flow cover, has improved the cleanliness factor in the laminar flow cover. The laminar flow hood casing 12 is provided with a pressure difference meter 1 for detecting gas in the laminar flow hood, a return air hole plate 3 for providing circulating air flow in the laminar flow hood, and a touch screen controller 4 capable of adjusting the air speed. Four hoisting seats 2 are arranged on the laminar flow hood shell 12 and are used for conveniently carrying the laminar flow hood. An illumination lamp 15 is installed in the laminar flow hood housing 12 for observing the operation inside the laminar flow hood. A groove 20 is formed in the middle of the box body 6, the high-efficiency filter 9 is installed in the groove 20, and a sealing frame 7 is fixedly installed at the joint of the groove 20 and the high-efficiency filter 9 through an installation piece 8. Wherein, the mounting part 8 comprises a stud 18, a screwing nut 19 and a pressing block 13. The pressing block 13 is of an L-shaped structure, one end of the pressing block 13 abuts against the groove 20, and the stud 18 is sealed by the screwing nut 19. The liquid sealant 17 is arranged in the groove 20, and the liquid sealant 17 is submerged at the bottom of the sealing frame 7, so that the sealing performance of the laminar flow hood is improved. A laminar flow cover inner shell 11 is arranged on the sealing frame 7, and the laminar flow cover inner shell 11 is connected with the top of the high-efficiency filter 9 through an annular sealing gasket 10. Not only the leakproofness of laminar flow cover has been improved, be formed with the negative pressure chamber that is used for getting rid of the interior dust of laminar flow cover between laminar flow cover shell 12 and the laminar flow cover inner shell 11 moreover, improved laminar flow cover's cleanliness factor. A fan 14 is arranged above the high-efficiency filter 9, and the fan 14 is positioned in the laminar flow hood inner shell 11.
In this embodiment, the installation part 8, the sealing frame 7, the annular sealing gasket 10 and the liquid sealant 17 are arranged, so that the laminar flow hood is prevented from leaking and loosening, and the sealing performance of the laminar flow hood is improved. Through the setting that adopts laminar flow cover inside and outside shell, make laminar flow cover have the negative pressure chamber, can effectually get rid of the interior dust blowing of laminar flow cover, improve laminar flow cover's cleanliness factor. Through setting up flow equalizing membrane 16, the state of can not appearing the random flow in the laminar flow cover has improved the cleanliness factor in the laminar flow cover. Through setting up differential pressure table 1 for detect laminar flow cover internal gas pressure poor, guarantee laminar flow cover internal gas flow's smoothness nature and stability. The laminar flow hood is internally provided with an air circulation function through the arrangement of the return air pore plate 3 and the fan 14. By arranging the touch screen controller 4, not only can the display data of the laminar flow hood be reflected, but also the fan 14 can be adjusted. When the laminar flow hood is operated, the fan 14 is started by connecting an external known power supply, air is efficiently filtered by the high-efficiency filter 9, and the air is discharged out of the laminar flow hood through the box body 6.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A hundred-grade vertical laminar flow hood with a double-sealing structure is characterized by comprising a base, a laminar flow hood outer shell, a laminar flow hood inner shell, a box body, a fan, a high-efficiency filter, a flow equalizing film, a sealing frame and an annular sealing gasket; the laminar flow hood shell is installed on the base, the box body is installed in the laminar flow hood shell, and the flow equalizing film is arranged on the outer side of the box body; a groove is formed in the middle of the box body, the high-efficiency filter is installed in the groove, and the sealing frame is fixedly installed at the joint of the groove and the high-efficiency filter through an installation piece; the laminar flow cover inner shell is arranged on the sealing frame and connected with the top of the high-efficiency filter through the annular sealing gasket; the fan is arranged above the high-efficiency filter and positioned in the inner shell of the laminar flow hood.
2. The dual seal configuration hundred-stage vertical laminar flow shield according to claim 1, wherein the mounting member comprises a stud, a turndown nut, and a hold down block; the pressing block is of an L-shaped structure, one end of the pressing block abuts against the groove, and the stud is sealed through the screwing nut.
3. The double containment structural hundred-level vertical laminar flow hood according to claim 1, wherein a liquid sealant is disposed within said recess, said liquid sealant submerging the bottom of said sealing frame.
4. The double-sealed structure hundred-stage vertical laminar flow hood according to claim 1, wherein a negative pressure chamber for removing dust in the laminar flow hood is formed between the outer shell of the laminar flow hood and the inner shell of the laminar flow hood.
5. The double-sealed structure hundred-grade vertical laminar flow hood according to claim 1, wherein a differential pressure gauge for detecting gas in the laminar flow hood and a return air hole plate for providing circulating air flow in the laminar flow hood, and a touch screen controller for regulating wind speed are installed on the laminar flow hood housing.
6. The dual seal configuration hundred-stage vertical laminar flow hood according to claim 1, wherein four lifting sockets are provided on the laminar flow hood housing.
7. The dual seal configuration hundred-stage vertical laminar flow hood according to claim 1, wherein an illumination lamp is mounted within the laminar flow hood housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922183128.7U CN211977196U (en) | 2019-12-09 | 2019-12-09 | Hundred-grade vertical laminar flow cover with double-sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922183128.7U CN211977196U (en) | 2019-12-09 | 2019-12-09 | Hundred-grade vertical laminar flow cover with double-sealing structure |
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| Publication Number | Publication Date |
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| CN211977196U true CN211977196U (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922183128.7U Active CN211977196U (en) | 2019-12-09 | 2019-12-09 | Hundred-grade vertical laminar flow cover with double-sealing structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833505A (en) * | 2021-03-10 | 2021-05-25 | 中国五冶集团有限公司 | Laminar flow protector for clean room filter |
| CN113194642A (en) * | 2021-04-23 | 2021-07-30 | 中国成达工程有限公司 | Secondary protection box and secondary protection method for electrical equipment |
-
2019
- 2019-12-09 CN CN201922183128.7U patent/CN211977196U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833505A (en) * | 2021-03-10 | 2021-05-25 | 中国五冶集团有限公司 | Laminar flow protector for clean room filter |
| CN113194642A (en) * | 2021-04-23 | 2021-07-30 | 中国成达工程有限公司 | Secondary protection box and secondary protection method for electrical equipment |
| CN113194642B (en) * | 2021-04-23 | 2024-05-14 | 中国成达工程有限公司 | Secondary protection box and secondary protection method for electrical equipment |
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