CN102980281B - Double-seal leak-tightness efficient air supply outlet - Google Patents
Double-seal leak-tightness efficient air supply outlet Download PDFInfo
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- CN102980281B CN102980281B CN201210575790.7A CN201210575790A CN102980281B CN 102980281 B CN102980281 B CN 102980281B CN 201210575790 A CN201210575790 A CN 201210575790A CN 102980281 B CN102980281 B CN 102980281B
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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 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 meet to purify the key equipment requiring.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 existing air cleaning and conditioning system, the hermetically-sealed construction that high efficiency particulate air filter adopts, zero-pressure chamber cannot be set, cause the dirt gas that has that high efficiency particulate air filter and efficient air distributor box sealing place and efficient air distributor casing frame place reveal to be directly leaked in purification region, environment in purification region is caused and had a strong impact on, and then cause immeasurable loss.Especially new GMP code requirement carries out PAO detection to efficient air distributor, and important requirement detects the press box surrounding except filter itself.The efficient air distributor of original hermetically-sealed construction is difficult to, by this detection, thereby directly have influence on engineering, hand over, and causes unnecessary loss.
Summary of the invention
The object of the invention is for the technological deficiency existing in prior art, and provide a kind of dual-seal without leaking efficient air distributor.
For realizing the technical scheme that object of the present invention adopts, be:
A kind of dual-seal is without leaking efficient air distributor, comprise the cabinet shell being communicated with air supply duct, be fixedly installed on the support ring in 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 being fixedly connected with cabinet shell, the upper gulde edge that outer side edges top extends internally relatively, and the zero-pressure chamber that is formed on upper gulde edge below, outer side edges inner side, on described zero-pressure chamber medial surface, offer a plurality of leakage collection holes spaced apart, on described zero-pressure chamber lateral surface, offer at least one relief hole, described high efficiency particulate air filter is positioned between gulde edge and pressure ring, meanwhile, 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 being integrally formed with outer side edges bottom, and described high efficiency particulate air filter is positioned in inner side, outside fix limit, is provided with the 3rd sealing ring between the contact-making surface on described pressure ring and outside fix limit.
The second described sealing ring and the 3rd sealing ring are integral type structure.
Described pressure ring comprises ring body and the inside horizontally extending brace table being fixedly connected with the horizontal edge on outside fix limit by bolt, and described brace table is upper and lower corresponding to high efficiency particulate air filter is clamped wherein with upper gulde edge.
The ring body of described pressure ring and described corresponding position, outside fix limit are formed with concave ring groove, and the 3rd described sealing ring is local or be all limited in 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 discharging after the dusty gas step pressure reducing of leakage, guaranteed that cavity and cabinet shell internal differential pressure between support ring and high efficiency particulate air filter are little, can effectively suppress to reveal further generation, the pressure that can progressively discharge again in cavity is avoided causing sealing load to the second sealing ring and the 3rd sealing ring place, also avoid blowing and too much run off, guarantee whole air output simultaneously.
Accompanying drawing explanation
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 the portion of A shown in Fig. 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.
As Figure 1-5, dual-seal of the present invention is without leaking efficient air distributor, comprise the cabinet shell 1 being communicated with air supply duct, be fixedly installed on the support ring 2 in cabinet shell, the pressure ring 3 and the high efficiency particulate air filter 4 that are fixedly connected with described support ring, wherein, described support ring 2 comprises the outer side edges 21 being 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 being integrally formed with outer side edges bottom, and the zero-pressure chamber 23 that is formed on upper gulde edge below, outer side edges inner side, wherein, described zero-pressure chamber is by the upper gulde edge of part, in 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 outside fix limit vertical edge inner side and interferes with high efficiency particulate air filter avoiding, simultaneously on described zero-pressure chamber medial surface, be on swash plate 25, to offer a plurality of leakage collection holes spaced apart, described zero-pressure chamber lateral surface, be in outer side edges 21, to offer at least one relief hole, at described cabinet shell and relief hole corresponding position, also offer through hole, described relief hole can be with the dust discharge pipeline connection through cabinet shell through hole to avoid entering indoor by the dusty gas discharge of leakage simultaneously.
Described pressure ring 3 is arranged on support ring below, described pressure ring 3 comprises ring body 31 and the inside horizontally extending brace table 32 being fixedly connected with the horizontal edge on outside fix limit by bolt, described brace table 32 is upper and lower corresponding to high efficiency particulate air filter is clamped wherein with upper gulde edge, for improving its sealing, on the contact-making surface of high efficiency particulate air filter and upper gulde edge and pressure ring support ring, be respectively arranged with the first sealing ring 5 and the second sealing ring 6, between the contact-making surface on described pressure ring and outside fix limit, be provided with the 3rd sealing ring 7 simultaneously.
Further, for improving the stability of the second sealing ring, prevent that it is subjected to displacement, the second described sealing ring and the 3rd sealing ring are integral type structure.Simultaneously, go out to be formed with concave ring groove 33 described ring body is corresponding with described outside fix limit, the 3rd described sealing ring is local or be all limited in concave ring groove, when utilizing roundabout maze-type structure to improve high efficiency particulate air filter downside sealing, improved the stability of each sealing ring position, avoided occurring because the displacement of sealing ring causes leaking.
Wherein, the first described 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, at this, no longer launch to describe.
For utilizing PAO to send out dirt method, efficient air distributor is hunted leak by platform, because efficient air distributor high efficiency particulate air filter upper space is less, can causes high efficiency particulate air filter upstream to send out dust concentration inequality, thereby directly affect the leak detection effect of high efficiency particulate air filter simultaneously.Therefore the present invention arranges the pipe 9 of being evenly fuming and sends out the even of dust concentration to guarantee 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 pipe one end that is evenly fuming is fixed on uniform flow orifice with turning tail tapping screw, and the other end is welded in the inner chamber body of air outlet.
Because high efficiency particulate air filter itself is 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 pressure differential detection hole to detect the filtration front and back pressure reduction of high efficiency particulate air filter, thereby judge whether high efficiency particulate air filter needs to change.Described pressure differential detection eyelet welding is connected in the inner chamber body of air outlet, and this pressure differential detection hole similarly to the prior art, no longer launches to describe at this.
Dual-seal of the present invention is without leaking efficient air distributor, the leakage that the first sealing ring place produces when air-supply can enter in the cavity between support ring and high efficiency particulate air filter, after entering dusty gas in cavity and acquiring a certain degree, can enter zero-pressure chamber by the relief hole on swash plate, and enter dusty gas in zero-pressure chamber finally can by dust discharge pipeline discharge avoid entering indoor.Like this, the pressure of dusty gas is progressively reduced to rear discharge, guaranteed that cavity and cabinet shell internal differential pressure between support ring and high efficiency particulate air filter are little, can effectively suppress to reveal further generation, the pressure that can progressively discharge again in cavity is avoided causing sealing load to the second sealing ring and the 3rd sealing ring place, also avoid blowing and too much run off, guarantee whole air output simultaneously.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles 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 being communicated with air supply duct, be fixedly installed on the support ring in 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 being fixedly connected with cabinet shell, the upper gulde edge that outer side edges top extends internally relatively, and the zero-pressure chamber that is formed on upper gulde edge below, outer side edges inner side, on described zero-pressure chamber medial surface, offer a plurality of leakage collection holes spaced apart, on described zero-pressure chamber lateral surface, offer at least one relief hole, described high efficiency particulate air filter is positioned between gulde edge and pressure ring, meanwhile, 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 being integrally formed with outer side edges bottom, described high efficiency particulate air filter is positioned in inner side, 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, without leaking efficient air distributor, is characterized in that, the second described sealing ring and the 3rd sealing ring are 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 being fixedly connected with the horizontal edge on outside fix limit by bolt, and described brace table is upper and lower corresponding to high efficiency particulate air filter is clamped wherein with upper gulde edge.
5. dual-seal as claimed in claim 4, without leaking efficient air distributor, is characterized in that, the ring body of described pressure ring is formed with concave ring groove with described corresponding position, outside fix limit, the part of the 3rd described sealing ring or be all limited in 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102980281A CN102980281A (en) | 2013-03-20 |
| CN102980281B true 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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256695B (en) * | 2013-05-21 | 2015-12-02 | 江苏姑苏净化科技有限公司 | Efficient air distributor |
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3892555B2 (en) * | 1997-11-11 | 2007-03-14 | 日本無機株式会社 | Clean air blowing 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 |
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- 2012-12-25 CN CN201210575790.7A patent/CN102980281B/en active Active
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