CN203586471U - Negative-pressure type hundred-level laminar flow cover - Google Patents
Negative-pressure type hundred-level laminar flow cover Download PDFInfo
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- CN203586471U CN203586471U CN201320687232.XU CN201320687232U CN203586471U CN 203586471 U CN203586471 U CN 203586471U CN 201320687232 U CN201320687232 U CN 201320687232U CN 203586471 U CN203586471 U CN 203586471U
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- laminar flow
- flow hood
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- outer cover
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Abstract
The utility model relates to a negative-pressure type hundred-level laminar flow cover. The negative-pressure type hundred-level laminar flow cover comprises a laminar flow cover outer cover and at least one laminar flow cover inner cover arranged inside the laminar flow cover outer cover. The lower portion of each laminar flow cover inner cover is provided with an efficient filter in a sealed mode, and the top of each laminar flow cover inner cover is provided with a ventilation draught fan supplying air to the efficient filters from the area between the laminar flow cover outer cover and the laminar flow cover inner covers, namely, the negative-pressure area is formed between the laminar flow cover outer cover and the laminar flow cover inner covers. According to the negative-pressure type hundred-level laminar flow cover, the laminar flow cover inner covers and the ventilation draught fan are additionally arranged on the basis of an existing laminar flow cover structure, the negative-pressure area is formed between the outer cover and the inner covers, a fluid groove sealing mechanism is arranged, and even under the situation that the welding joint air leakage exists between the outer cover and the inner covers, airflow cannot directly leak or flow to the working area from the negative-pressure area but all flow to the working area through the efficient filters, and the cleanness of the area airflow of the working area is guaranteed.
Description
Technical field:
The utility model relates to laminar flow hood equipment technical field, refers in particular to hundred grades of laminar flow hood of a kind of suction type.
Background technology:
Laminar flow hood is can be by one of equipment of operator and product shielding isolation, and its main application is to avoid contamination of products.The air of drawing from toilet, then adopts the fan of installing in the pressure cabin of top by HEPA, to filter vertical through operating area, for key area provides the ISO5 way flow air of (rank 100).Waste gas, from discharging, returns to region, toilet below.It is mainly comprised of casing, blower fan, high efficiency particle air filter, damping layer, light fixture etc.
Existing hundred grades of laminar flow hood generally only include laminar flow hood cover body and the large parts of high efficiency particulate air filter two; connection between they the two adopts welding manner combination; there is the tight not risk of sealing; in addition; laminar flow hood cover body can be equipped with a plurality of high efficiency particulate air filters conventionally; it is large that cover body size more efficient filter is wanted; this just easily causes between them distance excessive; increase sealing difficulty; often have leakage phenomenon; easily form airtight self-loopa, contaminated air band is not walked, and does not so just reach the effect of hundred grades of laminar flows.
Utility model content:
The purpose of this utility model is to overcome the above-mentioned weak point of existing product, provides a kind of suction type hundred grades of laminar flow hood.
The technical scheme that the utility model is realized its object employing is: hundred grades of laminar flow hood of a kind of suction type, it comprises laminar flow hood outer cover and is arranged at least one the laminar flow hood inner cover in laminar flow hood outer cover, in each laminar flow hood inner cover lower seal, high efficiency particulate air filter is installed, the exhausting blower fan of the air-supply from the region between laminar flow hood outer cover and laminar flow hood inner cover to high efficiency particulate air filter is installed in the top of each laminar flow hood inner cover, and the region between laminar flow hood outer cover and laminar flow hood inner cover forms negative pressure region.
In the periphery of described high efficiency particulate air filter, extend to form a liquid bath that fills liquid, accordingly, in the inner side of described laminar flow hood outer cover, extend to form a downward casing flange, and described casing flange is positioned at the liquid bath of high efficiency particulate air filter and embeds under the liquid level of liquid; Described laminar flow hood inner cover has the horizontal flanging contacting with laminar flow hood outer cover sealing.
Casing flange outside in described laminar flow hood outer cover is also provided with several double-screw bolts and locking nut, a latch segment is installed on each double-screw bolt, and described latch segment is accepted the lower surface of liquid bath on described high efficiency particulate air filter.
Described latch segment is L-shaped, and offers the through hole passing for double-screw bolt.
The utility model increases a laminar flow hood inner cover and exhausting blower fan on existing laminar flow cover structure basis, between outer cover and inner cover, form a negative pressure region, be equipped with again flume seal mechanism, even if in the situation that there is weld seam gas leakage between outer cover and inner cover, air-flow also cannot directly leak and flow to working region from negative pressure region, but all by high efficiency particulate air filter, flow to working region, guarantee the cleanliness factor of working region air-flow.And the utility model can lock laminar flow hood outer cover and high efficiency particulate air filter by a plurality of " L " shape latch segment, further simplify the assembling process of laminar flow hood outer cover and filter.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1.
The specific embodiment:
Below in conjunction with specific embodiments and the drawings, the utility model is further illustrated.
As shown in Figure 1 and Figure 2, hundred grades of laminar flow hood of suction type described in the utility model comprise laminar flow hood outer cover 1 and are arranged at least one the laminar flow hood inner cover 2 in laminar flow hood outer cover 1, in each laminar flow hood inner cover 2 lower seal, high efficiency particulate air filter 3 is installed, in the top of each laminar flow hood inner cover 2, be provided with from the region between laminar flow hood outer cover 1 and laminar flow hood inner cover 2 to the exhausting blower fan 4 of high efficiency particulate air filter 3 air-supplies, the region between laminar flow hood outer cover 1 and laminar flow hood inner cover 2 forms negative pressure region 5.
In the periphery of described high efficiency particulate air filter 3, extend to form a liquid bath 31 that fills liquid 30, accordingly, in the inner side of described laminar flow hood outer cover 1, extend to form a downward casing flange 11, and described casing flange 11 is positioned at the liquid bath 31 of high efficiency particulate air filter 3 and embeds under the liquid level of liquid 30; Described laminar flow hood inner cover 2 has the horizontal flanging 21 contacting with laminar flow hood outer cover 1 sealing.
The utility model inserts in the interior liquid 30 of liquid bath 31 of high efficiency particulate air filter 3 by downward casing flange 11, make space and space outerpace in laminar flow hood outer cover 1 and filter isolated, realize thoroughly complete sealing, solved use sealing joint strip and occur leaking and the problem such as assembling trouble.
The utility model increases a laminar flow hood inner cover 2 and exhausting blower fan 4 on existing laminar flow cover structure basis, between outer cover and inner cover, form a negative pressure region 5, be equipped with again flume seal mechanism, even if in the situation that there is weld seam gas leakage between outer cover and inner cover, air-flow also cannot directly leak and flow to working region from negative pressure region, but all by high efficiency particulate air filter 3, flow to working region, guarantee the cleanliness factor of working region air-flow.And the utility model can lock laminar flow hood outer cover and high efficiency particulate air filter by a plurality of " L " shape latch segment, further simplify the assembling process of laminar flow hood outer cover and filter.
Claims (4)
1. hundred grades of laminar flow hood of a suction type, it is characterized in that: it comprises laminar flow hood outer cover (1) and is arranged at least one the laminar flow hood inner cover (2) in laminar flow hood outer cover (1), in each laminar flow hood inner cover (2) lower seal, high efficiency particulate air filter (3) is installed, the exhausting blower fan (4) of the air-supply from the region between laminar flow hood outer cover (1) and laminar flow hood inner cover (2) to high efficiency particulate air filter (3) is installed in the top of each laminar flow hood inner cover (2), and the region between laminar flow hood outer cover (1) and laminar flow hood inner cover (2) forms negative pressure region (5).
2. hundred grades of laminar flow hood of suction type according to claim 1, it is characterized in that: in the periphery of described high efficiency particulate air filter (3), extend to form a liquid bath (31) that fills liquid (30), accordingly, in the inner side of described laminar flow hood outer cover (1), extend to form a downward casing flange (11), and described casing flange (11) is positioned at the liquid bath (31) of high efficiency particulate air filter (3) and embeds under the liquid level of liquid (30); Described laminar flow hood inner cover (2) has the horizontal flanging (21) contacting with laminar flow hood outer cover (1) sealing.
3. hundred grades of laminar flow hood of suction type according to claim 2, it is characterized in that: casing flange (11) outside in described laminar flow hood outer cover (1) is also provided with several double-screw bolts (12) and locking nut (13), one latch segment (14) is installed on each double-screw bolt (12), and described latch segment (14) is accepted the lower surface of the upper liquid bath (31) of described high efficiency particulate air filter (3).
4. hundred grades of laminar flow hood of suction type according to claim 3, is characterized in that: described latch segment (14) is L-shaped, and offer the through hole passing for double-screw bolt (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687232.XU CN203586471U (en) | 2013-10-31 | 2013-10-31 | Negative-pressure type hundred-level laminar flow cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687232.XU CN203586471U (en) | 2013-10-31 | 2013-10-31 | Negative-pressure type hundred-level laminar flow cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203586471U true CN203586471U (en) | 2014-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320687232.XU Expired - Fee Related CN203586471U (en) | 2013-10-31 | 2013-10-31 | Negative-pressure type hundred-level laminar flow cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203586471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132445A (en) * | 2014-06-16 | 2014-11-05 | 无锡零界净化设备有限公司 | Self-positioning efficient air nozzle structure |
| CN105333145A (en) * | 2015-11-30 | 2016-02-17 | 冯义文 | Sealing structure of laminar flow hood |
-
2013
- 2013-10-31 CN CN201320687232.XU patent/CN203586471U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132445A (en) * | 2014-06-16 | 2014-11-05 | 无锡零界净化设备有限公司 | Self-positioning efficient air nozzle structure |
| CN105333145A (en) * | 2015-11-30 | 2016-02-17 | 冯义文 | Sealing structure of laminar flow hood |
| CN105333145B (en) * | 2015-11-30 | 2017-03-29 | 东莞市秦智工业设计有限公司 | A kind of sealing structure of laminar flow hood |
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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: 20140507 Termination date: 20191031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |