CN203571097U - Sealing gasket, diaphragm assembly and pulse dust removing valve - Google Patents
Sealing gasket, diaphragm assembly and pulse dust removing valve Download PDFInfo
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- CN203571097U CN203571097U CN201320691048.2U CN201320691048U CN203571097U CN 203571097 U CN203571097 U CN 203571097U CN 201320691048 U CN201320691048 U CN 201320691048U CN 203571097 U CN203571097 U CN 203571097U
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- inner ring
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- ring projection
- gasket seal
- outer ring
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- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 239000000428 dust Substances 0.000 title claims abstract description 18
- 239000004744 fabric Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 31
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 27
- 238000009828 non-uniform distribution Methods 0.000 description 5
- 238000006748 scratching Methods 0.000 description 5
- 230000002393 scratching effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model relates to a sealing gasket, a diaphragm assembly and a pulse dust removing valve. The sealing gasket comprises a gasket body and an inner ring hole formed in the body. A single face of the gasket body is provided with annular protrusions which are the outer ring protrusion and the inner ring protrusion respectively. The outer ring protrusion is arranged on the outer ring of the gasket, and the inner ring protrusion is arranged in the position close to the inner ring hole and has a distance with the edge of the inner ring hole. The protrusions are sealed rings preferably. The sections of the annular protrusions are regular triangles in shape preferably, and corners which are in contact with a diaphragm are non-sharp corners. The diaphragm is connected with the gasket in a riveted mode. The gasket not only has the sealing function, but also plays a role in limiting local displacement of the diaphragm in the pulse dust removing diaphragm assembly, and therefore an open hole in the diaphragm is prevented from being subjected to a sealing failure caused by excessively-large displacement. Meanwhile, the surface structure of the diaphragm is not damaged, a new leakage point is not generated, and the operation cycle of a system is greatly prolonged.
Description
Technical field
The utility model relates to a kind of gasket seal, diaphragm unit and pulse dust removal valve.
Background technique
Pulse dust removal valve is the most conventional actuator in a kind of industrial dedusting equipment soot cleaning system, and its purposes is to utilize pressurized air to remove the collected dust of filter bag.And in all parts of pulse dust removal valve, the diaphragm unit of bearing sealing and on-off action is the core institution of this valve.Diaphragm unit is by diaphragm, bolt, and nut, upper lower bolster, the part compositions such as exhaust port, gasket seal, its effect is the sealing effect that guarantees turnover oral examination, realizes the opening and closing of whole valve.On diaphragm, with exhaust port, effect is the cavity up and down that connects dust removing valve, and pressing diaphragm, on sealing surface, is realized to sealing.
Pulse dust removal valve seal general way of technology present stage is to use flat gasket to rivet, prior art as shown in Figure 1, and spreading glue is carried out seal vents.And the dust removing valve of this exploitation is because valve body increases, need more air displacement shorten the response time, thus increased the quantity of exhaust port, but along with the increase of exhaust port quantity, introduced again new problem, revealing exactly probability increases greatly.Like this, with regard to needing a kind of new exhaust port sealing means to seal, thereby reduce, even stop the generation that diaphragm leaks.
Therefore, need to improve pad of the prior art, to guarantee that it,, when air displacement increases, can improve sealability.
Model utility content
For addressing the above problem, the utility model provides a kind of gasket seal, has guaranteed, when air displacement increases, can improve sealability.In addition, the utility model also provides a kind of diaphragm unit that comprises sealing pad and pulse dust removal valve.
The gasket seal that the utility model embodiment provides, comprise shim body, with the inner ring hole being arranged in described shim body, described gasket seal body one side is provided with outer ring projection and inner ring projection, described outer ring projection is arranged on the outer ring of described pad, and described inner ring projection is arranged near the position of described inner ring hole and has distance with described inner ring hole edge.
Further, above-mentioned outer ring projection and/or described inner ring projection consist of the annulus of a sealing, or consist of at least two sections of circular arcs.
Further, above-mentioned at least two sections of circular arcs distribute along even circumferential.
Further, the cross section of above-mentioned outer ring projection and/or described inner ring projection is triangular in shape and/or trapezoidal.
Further, the cross section of above-mentioned outer ring projection and/or described inner ring projection is equilateral triangle and/or isosceles trapezoid.
Further, the top of above-mentioned equilateral triangle is fillet.
On the other hand, the utility model also provides a kind of diaphragm unit, comprise: upper lower bolster, be clipped in the diaphragm between lower bolster, and several arbitrary above-mentioned gasket seals, described diaphragm is provided with exhaust port, and described gasket seal is arranged on described exhaust port around and is fixed together with described diaphragm.
Further, above-mentioned gasket seal and above-mentioned diaphragm are fixed by riveted joint.
Further, above-mentioned upper lower bolster is plane of inclination with the face that above-mentioned diaphragm contacts.
Further, the material of above-mentioned diaphragm is the rubber with nylon fiber cloth interlayer, between described nylon fiber cloth and described rubber, with glue, is bonded together.
In addition, the utility model also provides a kind of pulse dust removal valve that comprises above-mentioned arbitrary diaphragm unit.
Compared with prior art, the useful technique effect that the utility model brings is:
The projection of sealing pad has played the effect of sealing on the one hand, also played on the other hand the effect of limiting diaphragm local displacement, to prevent that the perforate on diaphragm from causing seal failure because displacement is excessive, do not destroy membrane surface structure simultaneously, do not produce new leak point, greatly improved the operation period of system.
Accompanying drawing explanation
Fig. 1 is pad sectional drawing of the prior art;
Fig. 2 is the three-dimensional structure diagram of the first pad of providing of the utility model;
Fig. 3 is the sectional view of the first pad of providing of the utility model;
Fig. 4 is the three-dimensional structure diagram of the second pad of providing of the utility model;
Fig. 5 is the three-dimensional structure diagram of the third pad of providing of the utility model;
Fig. 6 is the three-dimensional structure diagram of the 4th kind of pad providing of the utility model;
Fig. 7 is the sectional view of the 5th kind of pad providing of the utility model;
Fig. 8 is the erection drawing of pad described in the utility model and diaphragm, rivet;
Fig. 9 is the structural representation of membrane component used for pulse valve described in the utility model.
Embodiment
In order to make those skilled in the art person can understand better the present invention, and above-mentioned purpose of the present invention, feature can be become apparent more, below in conjunction with specific embodiment, further set forth the utility model.These embodiments are only not used in restriction scope of the present utility model for the utility model is described.
Embodiment 1
Fig. 2 shows a kind of gasket seal (representing with " 20 " in figure) of one of the utility model embodiment.Gasket seal 20 comprises shim body 21, is arranged on the inner ring hole 22 in shim body, and the effect of inner ring hole 22 is and diaphragm is riveted, and the one side of shim body 21 is provided with outer ring projection 23 and inner ring projection 24.
Fig. 3 shows the sectional drawing of gasket seal shown in Fig. 2, comprise outer ring projection 23 and inner ring projection 24, described outer ring projection 23 is arranged on the outer ring of gasket seal, and described inner ring projection 24 is arranged near the position of described inner ring hole and has distance with described inner ring hole edge.If described inner ring projection and inner ring hole do not maintain a certain distance, inner ring projection will directly connect the internal surface that is pressed in diaphragm hole, like this, the sealing surface of inner ring projection only has original half length, and owing to being crimped on interior bore edges, crimp quality just can not be guaranteed, so inner ring projection 24 is arranged on the position of close described inner ring hole and has a distance with described inner ring hole 22 edges.Described outer ring projection 23 and inner ring projection 24 consist of closed circle, and closed circle can play good seal action, and projection can reach the object of limiting displacement.Because displacement has positive-displacement and oppositely displacement, so the cross section of preferred outer ring projection 23 and inner ring projection 24 is equilateral triangle.In addition, in order to prevent from scratching sealing surface, the angle that preferably equilateral triangle contacts with diaphragm is non-wedge angle, for example, can be fillet.
Embodiment 2
Fig. 4 shows the utility model the second gasket seal (representing with " 40 " in figure).Gasket seal 40 comprises shim body 41, is arranged on the inner ring hole 42 in shim body, and inner ring hole 42 is for riveting with diaphragm, and the one side of shim body 41 is provided with outer ring projection 43 and inner ring projection 44.Described outer ring projection 43 is arranged on the outer ring of pad, and described inner ring projection 44 is arranged near the position of described inner ring hole and has distance with described inner ring hole edge.If described inner ring projection and inner ring hole do not maintain a certain distance, inner ring projection will directly connect the internal surface that is pressed in diaphragm hole, like this, the sealing surface of inner ring projection only has original half length, and owing to being crimped on interior bore edges, crimp quality just can not be guaranteed, so inner ring projection 44 is arranged on the position of close described inner ring hole and has a distance with described inner ring hole 42 edges.Described outer ring projection 43 consists of at least two sections of circular arcs, and described inner ring projection 44 consists of the annulus sealing, because circular arc is compared closed circle and have the place of interruption, so closed circle is better than being interrupted circular arc in sealing and limit effect.When interruption circular arc is subject to certain thrust, evenly circular arc is due to symmetrical, rightabout thrust can be cancelled out each other, than the circular arc of non-uniform Distribution, equally distributed circular arc has better restriction positive-displacement and the oppositely effect of displacement, so the circular arc effect distributing along outer ring even circumferential is better than the circular arc of non-uniform Distribution.The cross section of outer ring projection 43 and inner ring projection 44 is triangular in shape, as mentioned above, can play and limit better positive-displacement and the oppositely effect of displacement during equilateral triangle; Certainly, cross section be other shape also can, for example trapezoidal, consider positive-displacement and oppositely displacement, isosceles trapezoid effect is better than generally trapezoidal.But triangle has stability, and therefore equilateral triangle is best selection.In addition, in order to prevent from scratching sealing surface, preferably, the angle that projection contacts with diaphragm is non-wedge angle.
Embodiment 3
Fig. 5 shows the third gasket seal of the utility model (representing with " 50 " in figure).Gasket seal 50 comprises shim body 51, is arranged on the inner ring hole 52 in shim body, and the effect of inner ring hole 52 is and diaphragm is riveted, and the one side of shim body 51 is provided with outer ring projection 53 and inner ring projection 54.Described outer ring projection 53 is arranged on the outer ring of pad, and described inner ring projection 54 is arranged near the position of described inner ring hole and has distance with described inner ring hole edge.If described inner ring projection and inner ring hole do not maintain a certain distance, inner ring projection will directly connect the internal surface that is pressed in diaphragm hole, like this, the sealing surface of inner ring projection only has original half length, and owing to being crimped on interior bore edges, crimp quality just can not be guaranteed, so inner ring projection 54 is arranged on the position of close described inner ring hole and has a distance with described inner ring hole 52 edges; Described outer ring projection 53 consists of closed circle, and described inner ring projection 54 consists of at least two sections of circular arcs; Because inner ring projection consists of the circular arc being interrupted, so its sealing effect is not as good as the annulus projection of sealing.When interruption circular arc is subject to certain thrust, non-homogeneous circular arc is due to distribution or asymmetrical distribution, rightabout thrust can not be cancelled out each other, than equally distributed circular arc, the circular arc of non-uniform Distribution can not better limit positive-displacement and the oppositely effect of displacement, so the circular arc effect distributing along inner ring even circumferential is generally better than the circular arc of non-uniform Distribution.The cross section of outer ring projection 53 and inner ring projection 54 is triangular in shape, as mentioned above, can play and limit better positive-displacement and the oppositely effect of displacement during equilateral triangle; Certainly, cross section be other shape also can, for example trapezoidal, consider positive-displacement and oppositely displacement, isosceles trapezoid effect is better than generally trapezoidal.But triangle has stability, and therefore equilateral triangle is best selection.In order to prevent from scratching sealing surface, preferably, the angle that projection contacts with diaphragm is non-wedge angle.
Embodiment 4
Fig. 6 shows the 4th kind of gasket seal of the utility model (representing with " 60 " in figure).Gasket seal 60 comprises shim body 61, is arranged on the inner ring hole 62 in shim body, and the effect of inner ring hole 62 is and diaphragm is riveted, and the one side of shim body 61 is provided with outer ring projection 63 and inner ring projection 64.Described outer ring projection 63 is arranged on the outer ring of pad, and described inner ring projection 64 is arranged near the position of described inner ring hole and has distance with inner ring hole edge.If described inner ring projection and inner ring hole do not maintain a certain distance, inner ring projection will directly connect the internal surface that is pressed in diaphragm hole, like this, the sealing surface of inner ring projection only has original half length, and owing to being crimped on interior bore edges, crimp quality just can not be guaranteed, so inner ring projection 64 is arranged on the position of close described inner ring hole and has a distance with described inner ring hole 62 edges.Described outer ring projection 63 consists of at least two sections of circular arcs, described inner ring projection 64 consists of at least two sections of circular arcs, when interruption circular arc is subject to certain thrust, evenly circular arc is due to symmetrical, and rightabout thrust can be cancelled out each other, than the circular arc of non-uniform Distribution, equally distributed circular arc has better restriction positive-displacement and the oppositely effect of displacement, so preferably, outer ring arc and/or inner ring circular arc can distribute along even circumferential.Because circular arc is compared closed circle and have the place of interruption, thus in sealing and limit effect, the present embodiment not as above embodiment preferred.The same with above-described embodiment, the cross section of outer ring projection 64 and inner ring projection 63 can be triangular in shape, also can be other shape, for example trapezoidal, but triangle has stability, considers and has positive-displacement and oppositely displacement, and it is best therefore selecting equilateral triangle.Equilateral triangle can play better restriction positive-displacement and the oppositely effect of displacement; Further, in order to prevent from scratching sealing surface, the angle that preferably projection contacts with diaphragm is non-wedge angle.
Embodiment 5
Fig. 7 shows the sectional view (representing with " 70 " in figure) of the 5th kind of gasket seal of the utility model.Gasket seal comprises shim body 71, is arranged on the inner ring hole 72 in shim body 71, and the effect of inner ring hole 72 is and diaphragm is riveted, and the one side of shim body 71 is provided with outer ring projection 73 and inner ring projection 74.Described outer ring projection 73 is arranged on the outer ring of pad, and described inner ring projection 74 is arranged near the position of inner ring hole and has distance with described inner ring hole edge.If described inner ring projection and inner ring hole do not maintain a certain distance, inner ring projection will directly connect the internal surface that is pressed in diaphragm hole, like this, the sealing surface of inner ring projection only has original half length, and owing to being crimped on interior bore edges, crimp quality just can not be guaranteed, so inner ring projection 74 is arranged on the position of close described inner ring hole and has a distance with described inner ring hole 72 edges; Described outer ring projection 73 and/or described inner ring projection 74 consist of the annulus of a sealing, or consist of at least two sections of circular arcs; The cross section combination triangular in shape/trapezoidal of described outer ring projection 73 and inner ring projection 74, triangle has stability, so the combination of triangle/triangular hill is better than being combined on sealing effect of the combination of triangle/trapezoidal projection or trapezoidal/trapezoidal projection.In order to prevent from scratching sealing surface, preferably, the angle that projection contacts with diaphragm is non-wedge angle.
Fig. 8 is the sectional drawing of the erection drawing of described gasket seal and diaphragm cooperating, the gasket seal that the utility model is described lays respectively at the upper and lower surfaces of diaphragm 81, by rivet 82, gasket seal 20 described in diaphragm 81 and preferred embodiment one closely links together, the projection that gasket seal contacts with diaphragm is non-wedge angle, can not scratch membrane surface, adopt the assembly technology of riveting method more stable, reliable compared with other Placements.The effect of sealing has not only been played in this kind of design, also has the effect of limiting diaphragm local displacement, to prevent that the perforate on diaphragm from causing seal failure because displacement is excessive, does not destroy membrane surface structure simultaneously, does not produce new leak point.
Fig. 9 is the structural representation that adopts the sentinel valve of above-mentioned diaphragm unit, and diaphragm unit comprises punch pad 92, O type packing ring 91, and the diaphragm 81 contacting with punch pad lower surface, with the lower bolster 95 that diaphragm 81 lower surfaces contact, conventional pads 96 and conventional pads 97.The time that described diaphragm is closed in is in working order longer, fastening flange face is higher than sealing surface, make sealing surface as far as possible near closed condition, the nature of diaphragm just needs sizing, therefore preferred punch pad is with oblique angle, that is to say, the face that punch pad contacts with diaphragm is plane of inclination, and inclination can be played styling; For the same reason, lower bolster 95 is also with oblique angle, and the face that lower bolster contacts with diaphragm is also plane of inclination, to coordinate punch pad work, reaches better fixed effect.Punch pad 92 compresses diaphragm 81 by bolt 93 and sealing nut 94 with lower bolster 95, also the below of being fixed on gasket seal 95 for increasing the conventional pads 96 of diaphragm unit intensity and conventional pads 97 by bolt 93 and sealing nut 94, diaphragm top seals with O type circle 91.Gasket seal 20 described in the preferred embodiment of the present invention one is positioned at the exhaust port place of diaphragm.Diaphragm unit top pressure release during work, the pressure of diaphragm below makes diaphragm deformation, will on diaphragm unit, push away, until punch pad arrives the upper limit of valve gap, now valve body is opened; When valve body is closed, relief hole is closed, and now diaphragm unit upper and lower pressure is consistent, and diaphragm unit, by spring reset, is closed valve body.
Above-mentioned diaphragm unit can be applied in pulse dust removal valve product, therefore the utility model provides a kind of embodiment of pulse dust removal valve, described dust removing valve comprises above-mentioned arbitrary embodiment's diaphragm unit and gasket seal, the concrete structure of described gasket seal is identical with above-described embodiment with shape, or according to different function requirements and environmental demand, adopt any other equivalent variations.At this, do not repeat, described pulse dust removal valve is after batch testing, and diaphragm, without leaking, has reached the object that improves sealability.
Although described mode of execution of the present utility model in detail at this, but should be appreciated that the utility model is not limited to the embodiment of describing in detail and illustrating here, in the situation that not departing from essence of the present utility model and scope, can be realized by those skilled in the art other modification and variant.All these modification and variant all fall in scope of the present utility model.And all members described here can be replaced by the member being equal in other technologies.
Claims (11)
1. a gasket seal, comprise shim body, with the inner ring hole being arranged in described shim body, it is characterized in that, described gasket seal body one side is provided with outer ring projection and inner ring projection, described outer ring projection is arranged on the outer ring of described pad, and described inner ring projection is arranged near the position of described inner ring hole and has distance with described inner ring hole edge.
2. gasket seal according to claim 1, is characterized in that, described outer ring projection and/or described inner ring projection consist of the annulus of a sealing, or consist of at least two sections of circular arcs.
3. gasket seal according to claim 2, is characterized in that, described at least two sections of circular arcs distribute along even circumferential.
4. gasket seal according to claim 2, is characterized in that, the cross section of described outer ring projection and/or described inner ring projection is triangular in shape and/or trapezoidal.
5. gasket seal according to claim 4, is characterized in that, the cross section of described outer ring projection and/or described inner ring projection is equilateral triangle and/or isosceles trapezoid.
6. gasket seal according to claim 5, is characterized in that, the top of described equilateral triangle is fillet.
7. a diaphragm unit, it is characterized in that, comprise: upper lower bolster, be clipped in the diaphragm between lower bolster, and the arbitrary described gasket seal of several claims 1-6, described diaphragm is provided with exhaust port, and described gasket seal is arranged on described exhaust port around and is fixed together with described diaphragm.
8. diaphragm unit according to claim 7, is characterized in that, described gasket seal and described diaphragm are fixed by riveted joint.
9. according to the diaphragm unit described in claim 7 or 8, it is characterized in that, described upper lower bolster is plane of inclination with the face that described diaphragm contacts.
10. diaphragm unit according to claim 9, is characterized in that, the material of described diaphragm is the rubber with nylon fiber cloth interlayer, between described nylon fiber cloth and described rubber, with glue, is bonded together.
11. 1 kinds of pulse dust removal valves, is characterized in that, comprise the arbitrary described diaphragm unit of claim 7-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320691048.2U CN203571097U (en) | 2013-10-28 | 2013-10-28 | Sealing gasket, diaphragm assembly and pulse dust removing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320691048.2U CN203571097U (en) | 2013-10-28 | 2013-10-28 | Sealing gasket, diaphragm assembly and pulse dust removing valve |
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| Publication Number | Publication Date |
|---|---|
| CN203571097U true CN203571097U (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320691048.2U Expired - Lifetime CN203571097U (en) | 2013-10-28 | 2013-10-28 | Sealing gasket, diaphragm assembly and pulse dust removing valve |
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| Country | Link |
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| CN (1) | CN203571097U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061811A (en) * | 2016-12-26 | 2017-08-18 | 马勒技术投资(中国）有限公司 | Diaphragm protection device and the pressure regulator valve provided with diaphragm protection device |
| CN108266563A (en) * | 2016-12-30 | 2018-07-10 | 浙江三花汽车零部件有限公司 | Guide electromagnetic valve |
| CN109742712A (en) * | 2019-03-01 | 2019-05-10 | 江苏精一电气科技有限公司 | A kind of operation port sealing structure |
| CN109927299A (en) * | 2017-12-18 | 2019-06-25 | 塞德流量控制有限责任公司 | Diaphragm and its manufacturing method for diaphragm valve |
| CN114730972A (en) * | 2020-09-30 | 2022-07-08 | 宁德新能源科技有限公司 | Battery cell and feedthrough assembly |
-
2013
- 2013-10-28 CN CN201320691048.2U patent/CN203571097U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061811A (en) * | 2016-12-26 | 2017-08-18 | 马勒技术投资(中国）有限公司 | Diaphragm protection device and the pressure regulator valve provided with diaphragm protection device |
| CN108266563A (en) * | 2016-12-30 | 2018-07-10 | 浙江三花汽车零部件有限公司 | Guide electromagnetic valve |
| CN108266563B (en) * | 2016-12-30 | 2020-09-29 | 浙江三花汽车零部件有限公司 | Pilot-operated electromagnetic valve |
| CN109927299A (en) * | 2017-12-18 | 2019-06-25 | 塞德流量控制有限责任公司 | Diaphragm and its manufacturing method for diaphragm valve |
| CN109742712A (en) * | 2019-03-01 | 2019-05-10 | 江苏精一电气科技有限公司 | A kind of operation port sealing structure |
| CN114730972A (en) * | 2020-09-30 | 2022-07-08 | 宁德新能源科技有限公司 | Battery cell and feedthrough assembly |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |