CN107143688B - Cloth bag dust removal off-line valve - Google Patents
Cloth bag dust removal off-line valve Download PDFInfo
- Publication number
- CN107143688B CN107143688B CN201710530814.XA CN201710530814A CN107143688B CN 107143688 B CN107143688 B CN 107143688B CN 201710530814 A CN201710530814 A CN 201710530814A CN 107143688 B CN107143688 B CN 107143688B
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- Prior art keywords
- valve
- valve cover
- sealing strip
- connecting rod
- reinforcing rib
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- 239000000428 dust Substances 0.000 title claims abstract description 42
- 239000004744 fabric Substances 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 66
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 37
- 238000005260 corrosion Methods 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a cloth bag dust removal off-line valve, which comprises a cylinder (1), a cylinder bracket (2), a connecting rod (3), a valve cover (4) and a valve seat (5), wherein the connecting rod (3) is not in direct contact with the valve cover (4), and a reinforcing rib plate (6) is arranged on the valve cover (4); a shaft seat (7) is arranged above the valve cover (4) and is used for connecting the connecting rod (3) and the reinforcing rib plate (6); a sealing device (8) is arranged between the valve cover (4) and the valve seat (5), and the sealing device (8) comprises an anti-corrosion gasket (81), a sealing strip (82) and a sealing strip fixing piece (83). The bag-type dust removal offline valve is simple in structure, convenient to operate, capable of greatly improving sealing performance, and suitable for being used under various working conditions.
Description
Technical Field
The invention relates to the field of bag-type dust removal in industries such as heating power, environmental protection and power plants, in particular to a bag-type dust removal offline valve.
Background
The off-line valve for cloth bag dust removal is an important valve component of the cloth bag dust remover and is arranged in a smoke chamber at the upper part of a filter bag of cloth bag dust removing equipment, and a smoke outlet for cloth bag dust removal is arranged. The structure of the traditional product comprises a valve seat, a valve cover, a connecting rod, a cylinder, corresponding connecting pieces, sealing materials (graphite packing) and the like.
When the general bag-type dust collector works normally, the off-line valve is in an open state. When the cloth bag needs back blowing, an inlet valve (generally a smoke baffle door) of the cloth bag dust collector and an off-line valve are closed. Therefore, an important indicator of the off-line valve is the sealing performance in the closed state. If the sealing performance is poor, (1) when the bag-type dust collector is reversely blown, dust can be blown into the flue through a gap of the off-line valve, so that the environmental protection index is not up to the standard; (2) Because the off-line valve is not tightly closed, air enters the bin, and dust blown back by the cloth bag cannot fall into an ash bucket at the bottom of the bin effectively, so that the dust removing effect of the cloth bag is affected.
The seal of the off-line valve is mainly a seal between the valve cover and the valve seat. In the prior art, under the general condition, the valve cover is formed by cutting steel plates, the valve seat is a cylindrical barrel, a hole is drilled at the center of the valve cover, and the connecting rod passes through the center hole from the outside of the valve cover and is matched and fixed with the nut in the valve cover. Because the size of the off-line valve is large (the diameter of the valve seat is generally between 800mm and 1400mm, and the total height of the valve seat, the connecting rod, the air cylinder and the like is generally between 2000mm and 4000 mm), and the connecting rod is fixed at the center of the valve cover, the parallelism deviation between the valve cover and the valve seat can be caused by the deviation of the perpendicularity of the connecting rod. And the longer the connecting rod is, the more easily the perpendicularity deviation is generated, thereby influencing the sealing of the valve cover and the valve seat. Meanwhile, the connecting rod is fixed at the center hole of the valve cover, acting force of the upper cylinder directly acts on the center hole through the connecting rod, the center of the valve cover is easy to sink, the circumference of the valve cover is tilted upwards, and sealing of the valve cover and the valve seat is also affected. Furthermore, the valve seat and the flue are welded and fixed, and the valve seat is hardly parallel to the valve cover due to the influence of welding deformation and other factors. In summary, the sealing performance of the traditional product cannot meet the working condition requirement, and smoke leakage is often generated.
Therefore, improving the sealing performance of the bag-type dust removal offline valve is a problem to be solved at present.
Disclosure of Invention
In order to overcome the problems, the inventor has made intensive studies and devised a bag-type dust removal off-line valve, wherein the off-line valve is provided with a reinforcing rib plate above a valve cover for dispersing external force from a connecting rod, and a shaft seat is arranged on the valve cover for connecting the connecting rod and the valve cover, and a sealing device is arranged between the valve cover and a valve seat, so that the off-line valve can play a sealing role when being closed, thereby completing the invention.
The invention provides a bag-type dust removal offline valve, which is specifically characterized by comprising the following components:
(1) The cloth bag dust removal off-line valve comprises a cylinder 1, a cylinder bracket 2, a connecting rod 3, a valve cover 4 and a valve seat 5, wherein the connecting rod 3 is not in direct contact with the valve cover 4.
(2) The bag-type dust removal offline valve according to the above (1), wherein,
the lower end of the air cylinder 1 is connected with the air cylinder bracket 2, the upper end of the connecting rod 3 passes through the lower end of the air cylinder bracket 2 to be connected with the air cylinder 1, the lower end is connected with the valve cover 4,
the valve cover 4 is provided with reinforcing ribs 6, preferably the reinforcing ribs 6 have a plurality, for example 2 to 10, preferably 3 to 8, more preferably 5,
the reinforcing rib plate 6 forms a preset included angle with the plane of the valve cover 4, the lower end is connected with the edge of the valve cover 4, is preferably uniformly distributed, the upper end is connected at a certain height from the center of the valve cover 4,
the reinforcing plate 6 may have different shapes, preferably a certain curvature.
(3) The bag-type dust removal offline valve according to the above (2), wherein,
the upper end of the reinforcing rib plate 6 is connected with a shaft seat 7, and preferably the shaft seat 7 is positioned above the valve cover 4 and connected with the lower end of the connecting rod 3.
(4) The bag-type dust removal offline valve according to the above (3), wherein the shaft seat 7 is a shaft seat with a cylindrical structure having a U-shaped cross section.
(5) The cloth bag dust removal off-line valve according to the above (3) or (4), wherein the bottom end inside the shaft seat 7 is provided with a shaft seat arc bottom surface 71 which is in contact connection with the lower end of the connecting rod 3;
the outside of the shaft seat 7 is provided with a notch 72 which is in contact connection with the upper end of the reinforcing rib plate 6.
(6) The off-line valve for bag house dust removal according to the above (5), wherein the notches 72 are uniformly distributed outside the shaft seat 7.
(7) The offline bag-type dust removal valve according to any one of the above (3) to (6), wherein the lower end of the connecting rod 3 is provided with a circular arc-shaped spherical surface 31, which is in contact with the circular arc bottom surface 71 of the shaft seat.
(8) The bag-type dust removal offline valve according to the above (1), wherein a sealing device 8 is provided between the valve cover 4 and the valve seat 5, preferably the sealing device 8 comprises a corrosion-resistant gasket 81, a sealing strip 82 and a sealing strip fixing member 83.
(9) The off-line valve for bag house dust removal according to the above (8), wherein the anti-corrosion gasket 81 is installed at the edge of the valve cover 4, and the sealing strip 82 is installed on the valve seat 5 by the sealing strip fixing member 83.
(10) The bag-type dust removal offline valve according to the above (8) or (9), wherein the sealing strip fixing member 83 is sleeved outside the sealing strip 82 and fixed on the valve seat 5.
The invention has the beneficial effects that:
(1) According to the bag-type dust removal offline valve, external acting force from the connecting rod is uniformly dispersed, deformation of the valve cover is effectively avoided, and the tightness between the valve cover and the valve seat is greatly improved;
(2) The bag-type dust removal offline valve disclosed by the invention can automatically adjust the angle when the connecting rod and the surface of the valve cover generate perpendicularity deviation, so that the parallelism deviation between the valve cover and the valve seat is avoided, the time for adjusting equipment is saved, and the working efficiency is improved;
(3) The bag-type dust removal offline valve has the advantages that the materials of the sealing device are selected in various ways, the bag-type dust removal offline valve can be used under various working conditions and overcurrent media, and the application range is wide;
(4) The bag-type dust removal off-line valve has the advantages of simple structure, low requirement on production equipment and low cost, and is suitable for large-scale industrial manufacture.
Drawings
FIG. 1 shows a schematic structural diagram of a bag-type dust removal offline valve according to the present invention;
FIG. 2 shows a schematic structural view of a shaft seat;
FIG. 3 shows a schematic structural view of a connecting rod;
FIG. 4 shows a schematic structural view of the connection of the shaft seat and the connecting rod and the reinforcing rib plate;
FIG. 5 shows an enlarged partial view of the sealing device of FIG. 1;
fig. 6 shows a schematic view of the positional relationship of the seal strip and the valve seat.
Reference numerals illustrate:
1-a cylinder;
2-cylinder bracket;
3-connecting rods;
31-arc sphere;
4-a valve cover;
5-valve seat;
51-above the valve seat;
52-the outer side of the valve seat;
6-reinforcing rib plates;
7-a shaft seat;
71-the circular arc bottom surface of the shaft seat;
72-notch;
8-sealing means;
81-anti-corrosion gaskets;
82-sealing strips;
821-sealing strip upper part;
822-lower part of the sealing strip;
83-a seal strip fixture;
9-flue separator.
Detailed Description
The invention is described in further detail below with reference to the drawings and the embodiments. The features and advantages of the present invention will become more apparent from the description. Wherein, although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
According to the bag-type dust removal off-line valve provided by the invention, as shown in fig. 1, the off-line valve sequentially comprises a cylinder 1, a cylinder bracket 2, a connecting rod 3, a valve cover 4 and a valve seat 5. Wherein the connecting rod 3 is not in direct contact with the valve cover 4; the lower end of the air cylinder 1 is connected with the upper end of the air cylinder bracket 2 and is used for providing external power; the upper end of the connecting rod 3 passes through the lower end of the cylinder bracket 2 to be connected with the cylinder 1, the lower end is connected with the valve cover 4, and in the actual working process, the cylinder 1 acts on the connecting rod 3 to generate acting force in the vertical direction to drive the valve cover 4 to ascend or descend.
When the bag-type dust removal off-line valve is closed, the valve cover 4 is pressed downwards under the action of the air cylinder 1 and is in contact with the valve seat 5, so that the sealing effect is achieved.
According to a preferred embodiment of the present invention, as shown in fig. 1, the valve cover 4 is provided with a reinforcing rib 6, and preferably the reinforcing rib 6 has a plurality, for example, 2 to 10, preferably 3 to 8, and more preferably 5 reinforcing ribs.
Wherein, the quantity of deep floor should not be too much to avoid aggravating the weight of valve gap, valve gap weight is too big, can lead to:
(1) The volume of the matched operation cylinder is larger, and the requirement on a power supply source is higher, so that the production operation cost is increased;
(2) The valve cover is easy to fall off from the driving rod, so that the maintenance cost is increased while the whole device is invalid. Therefore, the number of the reinforcing rib plates is set by comprehensively considering the effect of dispersing and concentrating the acting force and the total weight of the valve cover.
In a further preferred embodiment, the reinforcing ribs 6 are at a predetermined angle to the plane of the valve cover 4, with lower ends connected to the edges of the valve cover 4, preferably evenly distributed, and upper ends connected at a height above the center of the valve cover 4.
The edge parts of the valve cover 4 are equally divided according to the number of the reinforcing rib plates 6 and then are respectively connected with the reinforcing rib plates, so that external acting force from the connecting rod can be uniformly dispersed, deformation of the valve cover in the using process is reduced, and phenomena of inward sinking of the center and upward warping of the circumference of the valve cover are avoided.
The certain height is determined by factors such as an included angle between the reinforcing rib plate 6 and the plane of the valve cover 4, the size of the valve cover 4, the length of the reinforcing rib plate 6 and the like.
In a still further preferred embodiment, the reinforcing web 6 may have a different shape, preferably a curvature.
The reinforcing rib plate 6 is provided with a certain radian, so that the valve cover 4 can be better fixedly connected with the lower end of the reinforcing rib plate 6 and the upper end of the reinforcing rib plate 6 in the actual manufacturing process, and the acting force from the outside can be more uniformly dispersed on the plane of the valve cover 4.
According to a preferred embodiment of the present invention, as shown in fig. 1, the upper end of the reinforcing rib plate 6 is connected to the shaft seat 7, preferably, the shaft seat 7 is located above the valve cover 4 and connected to the lower end of the connecting rod 3.
In a further preferred embodiment, as shown in fig. 2, the shaft seat 7 is a shaft seat having a cylindrical structure with a U-shaped cross section.
In a further preferred embodiment, the bottom end of the inner part of the cylindrical shaft seat 7 is provided with a shaft seat arc bottom surface 71 which is in contact connection with the lower end of the connecting rod 3; the outside of the cylindrical shaft seat 7 is provided with a notch 72 which is in contact connection with the upper end of the reinforcing rib plate 6,
preferably, said notches 72 are uniformly distributed outside the shaft seat 7.
The number and the size of the notches 72 correspond to the specifications of the reinforcing rib plates 6, in the connecting process, the upper ends of the reinforcing rib plates 6 are matched and installed in the notches 72 of the shaft seat 7, and then welding connection is carried out, so that the connection firmness degree of the reinforcing rib plates and the shaft seat can be increased, and meanwhile, the welding precision and the working efficiency are improved.
According to a preferred embodiment of the present invention, as shown in fig. 3 and 4, the lower end of the connecting rod 3 is provided as a circular arc spherical surface 31, and contacts with the circular arc bottom surface 71 of the shaft seat.
The circular arc spherical surface 31 at the lower end of the connecting rod 3 and the circular arc bottom surface 71 of the shaft seat form spherical surface contact, and the connecting mode can automatically adjust the angle through the spherical surface contact when the connecting rod and the surface of the valve cover generate perpendicularity deviation, so that the parallelism deviation of the valve cover and the valve seat is avoided, and the tightness of the off-line valve is ensured.
According to a preferred embodiment of the invention, as shown in fig. 5, a sealing means 8 is arranged between the valve cover 4 and the valve seat 5, preferably the sealing means 8 comprises a corrosion protection gasket 81, a sealing strip 82 and a sealing strip fixing member 83.
In a further preferred embodiment, the anti-corrosion gasket 81 is mounted on the edge of the valve cover 4, and the sealing strip 82 is mounted on the valve seat 5 by a sealing strip fixing member 83.
The valve cover 4 is made of manganese steel, which is easy to corrode, and the anti-corrosion gasket 81 is made of a corrosion-resistant material, so that the anti-corrosion gasket is coated on the edge of the valve cover 4, and the member coated inside the anti-corrosion gasket can be protected from being corroded.
According to a preferred embodiment of the present invention, as shown in fig. 6, the sealing strip 82 includes an O-shaped sealing strip upper portion 821 and a rectangular sealing strip lower portion 822, and the valve seat 5 includes a valve seat upper surface 51 and a valve seat outer side surface 52.
In a further preferred embodiment, as shown in fig. 5 and 6, the bottom of the upper part 821 of the sealing strip with the O-shaped cross section is attached to the valve seat upper surface 51, and the inner side of the lower part 822 of the sealing strip with the rectangular cross section is attached to the valve seat outer side surface 52.
When the off-line valve is closed, the valve cover 4 acts downwards to be in contact with the upper part 821 of the sealing strip with the O-shaped section, so that the upper part 821 of the sealing strip is pressed downwards to achieve the sealing effect.
In a still further preferred embodiment, the bottom end of the lower portion 822 of rectangular cross section of the sealing strip is in contact with the upper face of the flue spacer 9.
According to a preferred embodiment of the present invention, the sealing strip fixing member 83 is sleeved on the outside of the sealing strip 82 and is fixed on the valve seat 5.
In a further preferred embodiment, the sealing strip holder 83 is a ferrule, preferably an annular ferrule.
Wherein, the hoop has better high temperature resistant, corrosion-resistant effect to prevent that the sealing strip from being corroded, simultaneously, it should have certain intensity, guarantees that sealing strip 82 does not take place great deformation by extruded in-process, keeps the state of closely laminating with disk seat 5.
According to a preferred embodiment of the present invention, the sealing strip 82 is selected from one or more of an O-ring, a tetrafluoro packing, and a graphite packing.
The O-shaped silica gel ring has good elasticity and rebound resilience, good sealing performance and poor high temperature resistance; the tetrafluoro packing has good sealing performance, high temperature resistance and corrosion resistance; the graphite packing can resist high temperature, but has poor wear resistance and sealing property. In the practical application process, different materials can be selected according to specific working conditions and physical and chemical properties of the overcurrent medium.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the azimuth or positional relationship in the operation state of the present invention, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
The invention has been described above in connection with preferred embodiments, which are, however, exemplary only and for illustrative purposes. On this basis, the invention can be subjected to various substitutions and improvements, and all fall within the protection scope of the invention.
Claims (5)
1. The cloth bag dust removal off-line valve is characterized by comprising a cylinder (1), a cylinder bracket (2), a connecting rod (3), a valve cover (4) and a valve seat (5), wherein the connecting rod (3) is not in direct contact with the valve cover (4);
the lower end of the air cylinder (1) is connected with the air cylinder bracket (2), the upper end of the connecting rod (3) passes through the lower end of the air cylinder bracket (2) to be connected with the air cylinder (1), the lower end is connected with the valve cover (4),
a reinforcing rib plate (6) is arranged on the valve cover (4), the reinforcing rib plate (6) is provided with a plurality of reinforcing ribs,
the reinforcing rib plates (6) form a preset included angle with the plane of the valve cover (4), the lower ends of the reinforcing rib plates (6) are connected with the edge of the valve cover (4) and are uniformly distributed, the upper ends of the reinforcing rib plates (6) are connected at a certain height from the upper part of the center of the valve cover (4),
the reinforcing rib plate (6) has a certain radian;
the upper end of the reinforcing rib plate (6) is connected with a shaft seat (7), and the shaft seat (7) is positioned above the valve cover (4) and is connected with the lower end of the connecting rod (3);
the shaft seat (7) is a shaft seat with a cylindrical structure and a U-shaped section;
a sealing device (8) is arranged between the valve cover (4) and the valve seat (5), and the sealing device (8) comprises an anti-corrosion gasket (81), a sealing strip (82) and a sealing strip fixing piece (83); the sealing strip fixing piece (83) is an annular hoop;
the bottom of the upper part (821) with the O-shaped cross section of the sealing strip is attached to the upper surface (51) of the valve seat, and the inner side of the lower part (822) with the rectangular cross section of the sealing strip is attached to the outer side surface (52) of the valve seat;
when the off-line valve is closed, the valve cover (4) acts downwards to be in contact with the upper part (821) of the sealing strip with the O-shaped section, so that the upper part (821) of the sealing strip is extruded downwards to achieve the sealing effect;
the bottom end of the inside of the shaft seat (7) is provided with a shaft seat circular arc bottom surface (71) which is in contact connection with the lower end of the connecting rod (3);
the outside of the shaft seat (7) is provided with a notch (72) which is in contact connection with the upper end of the reinforcing rib plate (6).
2. The bag-type dust removal offline valve according to claim 1, characterized in that,
the notches (72) are uniformly distributed outside the shaft seat (7).
3. The bag-type dust removal offline valve according to claim 1, characterized in that,
the lower end of the connecting rod (3) is provided with an arc-shaped spherical surface (31) which is contacted with the arc bottom surface (71) of the shaft seat.
4. The bag-type dust removal offline valve according to claim 1, characterized in that,
the anti-corrosion gasket (81) is arranged at the edge of the valve cover (4), and the sealing strip (82) is arranged on the valve seat (5) through the sealing strip fixing piece (83).
5. The bag-type dust removal offline valve according to claim 4, wherein,
the sealing strip fixing piece (83) is sleeved outside the sealing strip (82) and is fixed on the valve seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710530814.XA CN107143688B (en) | 2017-07-03 | 2017-07-03 | Cloth bag dust removal off-line valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710530814.XA CN107143688B (en) | 2017-07-03 | 2017-07-03 | Cloth bag dust removal off-line valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107143688A CN107143688A (en) | 2017-09-08 |
| CN107143688B true CN107143688B (en) | 2024-03-15 |
Family
ID=59784721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710530814.XA Active CN107143688B (en) | 2017-07-03 | 2017-07-03 | Cloth bag dust removal off-line valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107143688B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4399837A (en) * | 1981-07-27 | 1983-08-23 | Joy Manufacturing Company | Baghouse valve construction |
| CN201586454U (en) * | 2010-01-29 | 2010-09-22 | 迁安市津唐球墨铸管有限公司 | Cloth bag dedusting bell type valve of blast furnace smelting |
| CN201588949U (en) * | 2009-12-28 | 2010-09-22 | 汪东方 | Valve plate for dust collector |
| CN205118289U (en) * | 2015-07-29 | 2016-03-30 | 盐城市成功机械制造有限公司 | Self sealss sheet metal bypass valve |
| CN205699842U (en) * | 2016-03-14 | 2016-11-23 | 四平市中亚环保科技有限公司 | A kind of sack cleaner Off-line valve sealing device |
| CN206943556U (en) * | 2017-07-03 | 2018-01-30 | 沈阳化建通用设备有限公司 | Bag-type dust Off-line valve |
-
2017
- 2017-07-03 CN CN201710530814.XA patent/CN107143688B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4399837A (en) * | 1981-07-27 | 1983-08-23 | Joy Manufacturing Company | Baghouse valve construction |
| CN201588949U (en) * | 2009-12-28 | 2010-09-22 | 汪东方 | Valve plate for dust collector |
| CN201586454U (en) * | 2010-01-29 | 2010-09-22 | 迁安市津唐球墨铸管有限公司 | Cloth bag dedusting bell type valve of blast furnace smelting |
| CN205118289U (en) * | 2015-07-29 | 2016-03-30 | 盐城市成功机械制造有限公司 | Self sealss sheet metal bypass valve |
| CN205699842U (en) * | 2016-03-14 | 2016-11-23 | 四平市中亚环保科技有限公司 | A kind of sack cleaner Off-line valve sealing device |
| CN206943556U (en) * | 2017-07-03 | 2018-01-30 | 沈阳化建通用设备有限公司 | Bag-type dust Off-line valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107143688A (en) | 2017-09-08 |
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