CN102980281A - Double-seal leak-tightness efficient air supply outlet - Google Patents
Double-seal leak-tightness efficient air supply outlet Download PDFInfo
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- CN102980281A CN102980281A CN2012105757907A CN201210575790A CN102980281A CN 102980281 A CN102980281 A CN 102980281A CN 2012105757907 A CN2012105757907 A CN 2012105757907A CN 201210575790 A CN201210575790 A CN 201210575790A CN 102980281 A CN102980281 A CN 102980281A
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Abstract
The invention discloses a double-seal leak-tightness efficient air supply outlet. The double-seal leak-tightness efficient air supply outlet comprises a box body housing communicated with an air supply duct, a supporting ring fixedly arranged in the box body housing, and a compression ring and an efficient filter which are fixedly connected with the supporting ring, wherein the supporting ring comprises a zero-pressure cavity; a plurality of leakage collection holes distributed at intervals are formed on the inner side face of the zero-pressure cavity; at least one pressure relief hole is arranged on the outer side face of the zero-pressure cavity; and the efficient filter is positioned between an upper positioning side and the compression ring. According to the double-seal leak-tightness efficient air supply outlet, a sealing device is added and leaked dust-containing gas is discharged outwards after being depressurized step by step, so that a small internal pressure difference of the box body housing and the cavity between the supporting ring and the efficient filter is guaranteed, a further leakage can be effectively inhibited, pressure in the cavity can be gradually released so as to avoid causing sealing pressure to a second sealing ring and a third sealing ring, and meanwhile the supply air is stopped from losing too much, and total supply air is guaranteed.
Description
Technical field
The present invention relates to the air purifying process field, particularly relate to a kind of dual-seal without leaking efficient air distributor.
Background technology
Efficient air distributor is thousand grades, ten thousand grades, the 100000 grades end-filtration devices that air cleaning and conditioning system is comparatively desirable, can be extensively in the air cleaning and conditioning system of the industries such as medicine, health, electronics, chemical industry.Efficient air distributor is the end-filtration device as transformation and newly-built 1000-300000 level toilets at different levels, is to satisfy to purify the key equipment that requires.Efficient air distributor comprises plenum chamber, diffuser plate, and high efficiency particulate air filter can be apical grafting or side joint with the interface of airduct.
But the efficient air distributor in the existing air cleaning and conditioning system, the hermetically-sealed construction that high efficiency particulate air filter adopts, the zero-pressure chamber can't be set, the dirt gas that has that causes high efficiency particulate air filter and efficient air distributor box sealing place and efficient air distributor casing frame place to reveal directly is leaked in the purification zone, the environment that purifies in the zone is caused and has a strong impact on, and then cause immeasurable loss.Especially new GMP code requirement carries out PAO to efficient air distributor and detects, and important requirement detects around the press box except filter itself.The efficient air distributor of original hermetically-sealed construction is difficult to hand over thereby directly have influence on engineering by this detection, causes unnecessary loss.
Summary of the invention
The objective of the invention is for the technological deficiency that exists in the prior art, and provide a kind of dual-seal without leaking efficient air distributor.
For realizing that the technical scheme that purpose of the present invention adopts is:
A kind of dual-seal is without leaking efficient air distributor, comprise the cabinet shell that is communicated with air supply duct, be fixedly installed on the support ring in the cabinet shell, the pressure ring and the high efficiency particulate air filter that are fixedly connected with described support ring, wherein, described support ring comprises the outer side edges that is fixedly connected with cabinet shell, the upper gulde edge that relative outer side edges top extends internally, and the zero-pressure chamber that is formed on gulde edge below on the outer side edges inboard, offer a plurality of leakage collection holes spaced apart on the medial surface of described zero-pressure chamber, offer at least one relief hole on the lateral surface of described zero-pressure chamber; Described high efficiency particulate air filter is positioned between gulde edge and the pressure ring, simultaneously, is respectively arranged with the first sealing ring and the second sealing ring on the contact-making surface of described high efficiency particulate air filter and upper gulde edge and pressure ring.
Described support ring also comprises " 7 " the shape outside fix limit integrally formed with the outer side edges bottom, and it is inboard that described high efficiency particulate air filter is positioned in the outside fix limit, is provided with the 3rd sealing ring between the contact-making surface on described pressure ring and outside fix limit.
Described the second sealing ring and the 3rd sealing ring are the integral type structure.
Described pressure ring comprises ring body and the inside horizontally extending brace table that is fixedly connected with the horizontal edge on outside fix limit by bolt, and described brace table and upper gulde edge are corresponding to the high efficiency particulate air filter clamping wherein up and down.
The ring body of described pressure ring and corresponding position, described outside fix limit are formed with concave ring groove, and described the 3rd sealing ring is local or all be limited in the concave ring groove.
Compared with prior art, the invention has the beneficial effects as follows:
Efficient air distributor of the present invention, by increasing a sealing device and will discharging behind the dusty gas step pressure reducing that leak, guaranteed that namely cavity and cabinet shell internal differential pressure between support ring and the high efficiency particulate air filter are little, can reveal further generation by establishment, the pressure that can progressively discharge again in the cavity is avoided causing sealing load to the second sealing ring and the 3rd sealing ring place, simultaneously also avoid blowing and too much run off, guarantee whole air output.
Description of drawings
Fig. 1 is that dual-seal of the present invention is without the cutaway view that leaks efficient air distributor;
Figure 2 shows that the local enlarged diagram of A section shown in Figure 1;
Fig. 3 is sealing principle schematic diagram of the present invention;
Fig. 4 is support ring cross section structure schematic diagram of the present invention;
Fig. 5 is pressure ring cross section structure schematic diagram of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Shown in Fig. 1-5, dual-seal of the present invention is without leaking efficient air distributor, comprise the cabinet shell 1 that is communicated with air supply duct, be fixedly installed on the support ring 2 in the cabinet shell, the pressure ring 3 that is fixedly connected with described support ring and high efficiency particulate air filter 4, wherein, described support ring 2 comprises the outer side edges 21 that is fixedly connected with cabinet shell, relative outer side edges top is vertically extending upper gulde edge 22 inwardly, " 7 " the shape outside fix limit 24 integrally formed with the outer side edges bottom, and the zero-pressure chamber 23 that is formed on gulde edge below on the outer side edges inboard, wherein, described zero-pressure chamber is by the upper gulde edge of part, on the part gulde edge and be arranged on gulde edge and outer side edges between swash plate 25 limitation form, described zero-pressure chamber is positioned at vertical edge inboard, outside fix limit and interferes with high efficiency particulate air filter avoiding, and on the medial surface of described zero-pressure chamber, namely offers a plurality of leakage collection holes spaced apart on the swash plate 25 simultaneously, described zero-pressure chamber lateral surface namely offers at least one relief hole on the outer side edges 21; Simultaneously also offer through hole at described cabinet shell and relief hole corresponding position, described relief hole can be avoided entering indoor with the dusty gas discharge that will reveal with the dust discharge pipeline connection that passes the cabinet shell through hole.
Described pressure ring 3 is arranged on the support ring below, described pressure ring 3 comprises ring body 31 and the inside horizontally extending brace table 32 that is fixedly connected with the horizontal edge on outside fix limit by bolt, described brace table 32 and upper gulde edge are corresponding to the high efficiency particulate air filter clamping wherein up and down, for improving its sealing, be respectively arranged with the first sealing ring 5 and the second sealing ring 6 on the contact-making surface of high efficiency particulate air filter and upper gulde edge and pressure ring support ring, be provided with the 3rd sealing ring 7 between the contact-making surface on described pressure ring and outside fix limit simultaneously.
Further, for improving the stability of the second sealing ring, prevent that it is subjected to displacement, described the second sealing ring and the 3rd sealing ring are the integral type structure.Simultaneously, go out to be formed with concave ring groove 33 in that described ring body is corresponding with described outside fix limit, described the 3rd sealing ring is local or all be limited in the concave ring groove, when utilizing circuitous maze-type structure to improve high efficiency particulate air filter downside sealing, improved the stability of each sealing ring position, avoided occuring because the displacement of sealing ring causes leaking.
Wherein, described the first sealing ring, the second sealing ring and the 3rd sealing ring all can adopt conventional encapsulant, and high efficiency particulate air filter also belongs to prior art, no longer launch to describe at this.
For utilizing PAO to send out the dirt method efficient air distributor is hunted leak by platform, less because of efficient air distributor high efficiency particulate air filter upper space simultaneously, can cause the high efficiency particulate air filter upstream to send out the dust concentration inequality, thereby directly affect the leak detection effect of high efficiency particulate air filter.Therefore the present invention arranges the pipe 9 of evenly being fuming and sends out the even of dust concentration to guarantee the high efficiency particulate air filter upstream above the internal cavity high efficiency particulate air filter of cabinet shell, thereby guarantees the leak detection effect of high efficiency particulate air filter.The described Guan Yiduan of evenly being fuming is fixed on the uniform flow orifice with turning the tail tapping screw, and the other end is welded on the inner chamber body of air outlet.
Because high efficiency particulate air filter itself is the filtered air dust particle, growth along with service time, the dust particle of its surface attachment will get more and more, so just caused the air drag of high efficiency particulate air filter increasing, for the definite Resistance Value of knowing high efficiency particulate air filter, so set the pressure differential detection hole with pressure reduction before and after the filtration that detects high efficiency particulate air filter, thereby judge whether high efficiency particulate air filter needs to change.Described pressure differential detection eyelet welding is connected on the inner chamber body of air outlet, and this pressure differential detection hole and prior art are similar, no longer launches to describe at this.
Dual-seal of the present invention is without leaking efficient air distributor, in the leakage that produces of the first sealing ring place of when air-supply can enter cavity between support ring and the high efficiency particulate air filter, enter and to enter the zero-pressure chamber by the relief hole on the swash plate after the interior dusty gas of cavity acquires a certain degree, and the dusty gas that enters in the zero-pressure chamber finally can be avoided entering indoor by the discharge of dust discharge pipeline.Like this, the pressure of dusty gas is progressively reduced rear discharge, guaranteed that namely cavity and cabinet shell internal differential pressure between support ring and the high efficiency particulate air filter are little, can reveal further generation by establishment, the pressure that can progressively discharge again in the cavity is avoided causing sealing load to the second sealing ring and the 3rd sealing ring place, simultaneously also avoid blowing and too much run off, guarantee whole air output.
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a dual-seal is without leaking efficient air distributor, it is characterized in that, comprise the cabinet shell that is communicated with air supply duct, be fixedly installed on the support ring in the cabinet shell, the pressure ring and the high efficiency particulate air filter that are fixedly connected with described support ring, wherein, described support ring comprises the outer side edges that is fixedly connected with cabinet shell, the upper gulde edge that relative outer side edges top extends internally, and the zero-pressure chamber that is formed on gulde edge below on the outer side edges inboard, offer a plurality of leakage collection holes spaced apart on the medial surface of described zero-pressure chamber, offer at least one relief hole on the lateral surface of described zero-pressure chamber; Described high efficiency particulate air filter is positioned between gulde edge and the pressure ring, simultaneously, is respectively arranged with the first sealing ring and the second sealing ring on the contact-making surface of described high efficiency particulate air filter and upper gulde edge and pressure ring.
2. dual-seal as claimed in claim 1 is without leaking efficient air distributor, it is characterized in that, described support ring also comprises " 7 " the shape outside fix limit integrally formed with the outer side edges bottom, it is inboard that described high efficiency particulate air filter is positioned in the outside fix limit, is provided with the 3rd sealing ring between the contact-making surface on described pressure ring and outside fix limit.
3. dual-seal as claimed in claim 2 is characterized in that without leaking efficient air distributor described the second sealing ring and the 3rd sealing ring are the integral type structure.
4. dual-seal as claimed in claim 2 is without leaking efficient air distributor, it is characterized in that, described pressure ring comprises ring body and the inside horizontally extending brace table that is fixedly connected with the horizontal edge on outside fix limit by bolt, and described brace table and upper gulde edge are corresponding to the high efficiency particulate air filter clamping wherein up and down.
5. dual-seal as claimed in claim 4 is characterized in that without leaking efficient air distributor the ring body of described pressure ring and corresponding position, described outside fix limit are formed with concave ring groove, the part of described the 3rd sealing ring or all be limited in the concave ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210575790.7A CN102980281B (en) | 2012-12-25 | 2012-12-25 | Double-seal leak-tightness efficient air supply outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210575790.7A CN102980281B (en) | 2012-12-25 | 2012-12-25 | Double-seal leak-tightness efficient air supply outlet |
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| Publication Number | Publication Date |
|---|---|
| CN102980281A true CN102980281A (en) | 2013-03-20 |
| CN102980281B CN102980281B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210575790.7A Active CN102980281B (en) | 2012-12-25 | 2012-12-25 | Double-seal leak-tightness efficient air supply outlet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256695A (en) * | 2013-05-21 | 2013-08-21 | 江苏姑苏净化科技有限公司 | Efficient air supply outlet |
| CN104132439A (en) * | 2014-06-16 | 2014-11-05 | 无锡零界净化设备有限公司 | Three-section-sealing heat-insulating high-efficiency air port structure |
| CN105757927A (en) * | 2014-12-13 | 2016-07-13 | 天津市圣莱特净化设备有限公司 | High-efficient three-level sealing strip negative pressure guide air blowing opening |
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| JPH11141942A (en) * | 1997-11-11 | 1999-05-28 | Nippon Muki Co Ltd | Clean air blowoff device |
| CN201407785Y (en) * | 2009-03-20 | 2010-02-17 | 苏州克林洁净技术有限公司 | Efficient air distributor |
| CN201434473Y (en) * | 2009-06-05 | 2010-03-31 | 江苏姑苏净化科技有限公司 | Air supply outlet |
| CN201811399U (en) * | 2010-09-29 | 2011-04-27 | 上海朗脉洁净技术有限公司 | Filter air supply opening for clean room |
| CN202229371U (en) * | 2011-08-26 | 2012-05-23 | 中国建筑科学研究院 | Non-leakage filter air opening unit and air filtration system adopting the air opening unit |
| CN202382387U (en) * | 2011-12-05 | 2012-08-15 | 康斐尔过滤设备(昆山)有限公司 | air supply device with lower replaceable laminar filter |
| CN203036816U (en) * | 2012-12-25 | 2013-07-03 | 天津市圣莱特净化设备有限公司 | Double-sealed leakage-free high-efficiency air feeding port |
-
2012
- 2012-12-25 CN CN201210575790.7A patent/CN102980281B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11141942A (en) * | 1997-11-11 | 1999-05-28 | Nippon Muki Co Ltd | Clean air blowoff device |
| CN201407785Y (en) * | 2009-03-20 | 2010-02-17 | 苏州克林洁净技术有限公司 | Efficient air distributor |
| CN201434473Y (en) * | 2009-06-05 | 2010-03-31 | 江苏姑苏净化科技有限公司 | Air supply outlet |
| CN201811399U (en) * | 2010-09-29 | 2011-04-27 | 上海朗脉洁净技术有限公司 | Filter air supply opening for clean room |
| CN202229371U (en) * | 2011-08-26 | 2012-05-23 | 中国建筑科学研究院 | Non-leakage filter air opening unit and air filtration system adopting the air opening unit |
| CN202382387U (en) * | 2011-12-05 | 2012-08-15 | 康斐尔过滤设备(昆山)有限公司 | air supply device with lower replaceable laminar filter |
| CN203036816U (en) * | 2012-12-25 | 2013-07-03 | 天津市圣莱特净化设备有限公司 | Double-sealed leakage-free high-efficiency air feeding port |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256695A (en) * | 2013-05-21 | 2013-08-21 | 江苏姑苏净化科技有限公司 | Efficient air supply outlet |
| CN103256695B (en) * | 2013-05-21 | 2015-12-02 | 江苏姑苏净化科技有限公司 | Efficient air distributor |
| CN104132439A (en) * | 2014-06-16 | 2014-11-05 | 无锡零界净化设备有限公司 | Three-section-sealing heat-insulating high-efficiency air port structure |
| CN104132439B (en) * | 2014-06-16 | 2017-04-05 | 无锡零界净化设备股份有限公司 | The efficient tuyere structure of three sections of sealing thermal insulations of one kind |
| CN105757927A (en) * | 2014-12-13 | 2016-07-13 | 天津市圣莱特净化设备有限公司 | High-efficient three-level sealing strip negative pressure guide air blowing opening |
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| Publication number | Publication date |
|---|---|
| CN102980281B (en) | 2014-12-10 |
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