CN202056338U - Abrasion-resistant ball valve - Google Patents
Abrasion-resistant ball valve Download PDFInfo
- Publication number
- CN202056338U CN202056338U CN2011201077619U CN201120107761U CN202056338U CN 202056338 U CN202056338 U CN 202056338U CN 2011201077619 U CN2011201077619 U CN 2011201077619U CN 201120107761 U CN201120107761 U CN 201120107761U CN 202056338 U CN202056338 U CN 202056338U
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- valve
- valve body
- valve seat
- step hole
- ball
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Abstract
The utility model discloses an abrasion-resistant ball valve, which comprises a valve body. A fluid channel is correspondingly arranged at the front portion and the rear portion of the valve body, a valve cavity which is communicated with the fluid channels at the front portion and the rear portion of the valve body is arranged at the lower portion of the valve body, and a ball body which serves as a valve core is arranged in the valve cavity. A valve seat which is correspondingly matched with the ball body in sealed mode is respectively arranged between the valve cavity and the fluid channels at the front portion and the rear portion of the valve body, and a metal sealing body is fixedly arranged on the valve seat at a position where the valve seat and the valve body are contacted. The metal sealing body on the valve seat comprises a sealing surface in sealed contact with the ball body and a side surface facing the valve cavity, a circular groove is arranged on the side surface facing the valve cavity of metal sealing body on the valve seat, and the groove edge of the circular groove is intersected with the sealing surface of the metal sealing body to form a scraping edge structure. Due to the fact that the circular groove is arranged on the side surface of metal sealing body, and the groove edge of the circular groove is intersected with the sealing surface to form the scraping edge structure, solid powder particles enter into the circular groove with the opening and closing of the ball valve under the guidance of the scraping edge structure, thereby preventing the powder from entering the sealing surface to scrape the sealing surface.
Description
Technical field
The utility model belongs to the ball valve technical field, relates to a kind of wear resistance ball valve.
Background technique
Along with expanding economy, commercial plant constantly develops to high parameter, maximization direction, the working condition of commercial plant also becomes increasingly complex, under many circumstances, the working condition that ball valve is used even have high temperature, high pressure simultaneously, contain a large amount of hard solid particle situations also requires ball valve itself to have higher sealing under the condition of High Temperature High Pressure as employed ball valve in the catalyst desulfurizing device.
A kind of high-temperature wearable ball valve is disclosed in notification number is the Chinese utility model patent specification of CN201636374U, ball valve body and downstream integration valve seat are formed shell, front and rear part at shell is provided with the fluid passage, be provided with the valve pocket that is communicated with the fluid passage, front and rear part in valve body lower portion, in valve pocket, be provided with spheroid as spool, the spheroid middle part is provided with the connecting passage that is used to be communicated with the fluid passage, front and rear part, in the mesopore on valve body top, be provided with valve rod, the valve rod upper end connects with drive unit, its lower end connects with spheroid, spheroid can rotate around the central axis of valve rod under the valve rod effect, on valve body, be embedded with upstream valve seat and flexible graphite packing in spheroid one side, and at the upstream valve seat, downstream integration valve seat and spheroid form metalizing sealing on the sealing pair, to improve the sealing pair surface hardness, prolong the working life of ball valve.
Above-mentioned wear resistance ball valve is provided with metal sealer with the contacted position of the outer circumferential face of spheroid on valve seat; on spheroid, be provided with metal sealer equally; metal sealer on valve seat and the spheroid is formed metal-seated to improve the sealing effect of ball valve; metal sealer on the valve seat comprises on the sealing surface that contacts with ball seal and the metal sealer side towards valve pocket; in above-mentioned wear resistance ball valve, be the plane towards the side of valve pocket on the metal sealer of valve seat; because a large amount of solid powder particles that contain in the catalyst desulfurizing device can or close in the closed procedure in the each unlatching of ball valve and enter valve pocket; solid powder particle in the valve pocket enters in the sealing surface and the sealing surface of scratch valve seat and spheroid along spheroid; and because the side of metal sealer is the plane on the valve seat; this makes powder particle to assemble herein and causes more powder particle to enter in the sealing surface, thereby influences the sealing of ball valve and the working life of reducing ball valve.
The model utility content
The purpose of this utility model is to provide a kind of wear resistance ball valve, and the solid powder particle in the ball valve valve pocket enters between the two and the technical problem of scratch sealing surface along the surface of contact of spheroid and valve seat easily in the prior art to solve.
For achieving the above object, the utility model adopts following technological scheme: a kind of wear resistance ball valve, comprise valve body, the front and rear part correspondence of valve body be provided with the fluid passage, be provided with the valve pocket that is communicated with fluid passage, valve body front and rear part in valve body lower portion, in valve pocket, be provided with spheroid as spool, respectively be provided with between the fluid passage of described valve pocket and valve body front and rear part one with the corresponding valve seat that is sealed and matched of spheroid, on valve seat, be installed with metal sealer with ball seal position contacting place, metal sealer on the valve seat comprises the sealing surface that contacts with ball seal and towards the side of valve pocket, be provided with annular groove towards the side of valve pocket on the metal sealer of described valve seat, the groove of annular groove is along the sword structure is scraped in formation with the sealing surface of metal sealer is crossing.
Described valve body comprises main valve body and is connected in side valve body on the main valve body by bolt that what fluid passage, described front and rear part was corresponding respectively is arranged on main valve body and the side valve body.
The valve seat that is provided with between the anterior fluid passage on described valve pocket and the main valve body is movable valve seat, on the inwall of main valve body, be provided with the first step hole of extending along anterior fluid passage bearing of trend with movable valve seat opposite position place, be provided with by bottom, first step hole to the second step hole of extending in bottom, first step hole away from the spheroid direction, in the first step hole that is slidedly assemblied in main valve body of movable valve seat correspondence, be provided with the first annular table terrace movable valve seat with opposite position place, first step main valve body hole, roof pressure is equipped with the butterfly spring between the first annular table terrace of the first step hole of main valve body and movable valve seat, leave first cavity volume between the first annular table terrace of the second step hole of main valve body and movable valve seat, in first cavity volume, be provided with first seal ring and first pad, one side roof pressure of first pad is on first seal ring, opposite side cooperates with the corresponding end roof pressure of butterfly spring, side in the close spheroid of the first annular table terrace on movable valve seat is provided with the second annular table terrace, leave second cavity volume between the second annular table terrace of movable valve seat and the first step hole of main valve body, be provided with second seal ring and second pad in second cavity volume, a side roof pressure of second pad is in second seal ring, its opposite side cooperates with the corresponding end roof pressure of butterfly spring.
The beneficial effects of the utility model are: on the side of the metal sealer in the wear resistance ball valve provided by the utility model on the valve seat annular groove is set, and the groove of annular groove is along the sword structure is scraped in formation with the sealing surface of metal sealer is crossing, like this along with the unlatching of ball valve or close and the solid powder particle that flows to along the spheroid outer circumferential face between the sealing surface of spheroid and valve seat will enter in the annular groove under the guiding of scraping the sword structure, thereby avoid assembling a large amount of solid powder particles at the sealing surface place of spheroid and valve seat, reduce solid powder particle and enter sealing surface and the influence of scratch metallic sealing section, thereby guarantee the ball valve sealing effect, prolong the working life of ball valve simultaneously.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model a structural representation;
Fig. 2 is an A place enlarged view among Fig. 1;
Fig. 3 is a B place enlarged view among Fig. 1.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, a kind of wear resistance ball valve, comprise valve body, this valve body is made of the main valve body 1 of front side and the side valve body 2 of rear side, side valve body 2 is bolted to connection on main valve body 1, the side correspondence is provided with the fluid passage, front and rear part in the front and back of valve body, on the main valve body that is arranged on the front side 1 of fluid passage, front and rear part correspondence and the side valve body 2 of rear side, be provided with the valve pocket 7 that is communicated with the fluid passage, front and rear part in the bottom of valve body, in valve pocket, be provided with spheroid 3 as spool, spheroid 3 is provided with the connecting passage that is used to be communicated with the fluid passage, front and rear part, respectively be provided with a valve seat that cooperates with ball seal between the fluid passage of valve pocket 7 and valve body front and rear part, the valve seat that is provided with between valve pocket 7 and the anterior fluid passage is movable valve seat 4, the valve seat that is provided with between valve pocket 7 and the rear portion connecting passage is the fixed valve base that is wholely set with side valve body 2, on valve seat, be installed with metal sealer 6 with ball seal position contacting place, metal sealer 6 on the valve seat comprises the sealing surface 61 that contacts with ball seal and towards the side 62 of valve pocket 7, the side 62 towards valve pocket of the metal sealer 6 of valve seat is provided with annular groove 620, and the groove of annular groove 620 intersects and forms and scrape the sword structure along the sealing surface 61 with metal sealer 6; On the inwall of main valve body 1, be provided with the first step hole 14 of extending along anterior fluid passage bearing of trend with movable valve seat 4 opposite position places, be provided with by bottom, first step hole to the second step hole 15 of extending in 14 bottoms, first step hole away from the spheroid direction, being slidedly assemblied in the first step hole 14 of movable valve seat 4 correspondences, opposite position place with the first step hole 14 of main valve body 1 on movable valve seat 4 is provided with the first annular table terrace 18, roof pressure is equipped with butterfly spring 8 between the first annular table terrace 18 of the first step hole 14 of main valve body 1 and movable valve seat 4, one end roof pressure of butterfly spring 8 is in 14 bottoms, first step hole of main valve body 1, its the other end roof pressure is on the first annular table terrace 18 of movable valve seat 4, leave first cavity volume between the first annular table terrace 18 of the second step hole 15 of main valve body 1 and movable valve seat 4, in first cavity volume, be provided with first seal ring 16 and first pad 17, one side roof pressure of first pad 17 is on first seal ring 16, opposite side cooperates with the corresponding end roof pressure of butterfly spring 8, side in the close spheroid of the first annular table terrace 18 on the outer circumferential face of movable valve seat 4 is provided with the second annular table terrace 11, leave second cavity volume between the second annular table terrace 11 of movable valve seat 4 and the first step hole 14 of main valve body 1, in second cavity volume, be provided with second seal ring 12 and second pad 13, one side roof pressure of second pad 13 is on second seal ring 12, its opposite side cooperates with the corresponding end roof pressure of butterfly spring 8, and two seal rings in the present embodiment are the seal ring for being made of flexible graphite packing all.
As shown in Figure 2, wear resistance ball valve provided by the utility model is provided with butterfly spring 8 between main valve body 1 and movable valve seat 4, ought normally close the sealing of having guaranteed spheroid and valve seat under the situation like this contacts, at high temperature can effectively compensate spheroid and valve seat high temperature and expand, thus the jam of avoiding Yin Gaowen to expand into bringing.Be provided with first cavity volume and second cavity volume in the both sides of butterfly spring, set first pad 17 and first seal ring 16 can be avoided powder particle in the fluid passage to enter the first step hole of main valve body and influence the proper functioning of butterfly spring in first cavity volume, second pad 13 and second seal ring 12 set in second cavity volume can prevent effectively that powder particle from entering in the sealing area at the valve seat back side, to prolong the working life of ball valve.
As shown in Figure 3, when the wear resistance ball valve in the utility model is worked, because be provided with annular groove 620 towards the side 62 of valve pocket on the metal sealer of valve seat 6, and the groove of annular groove intersects and forms and scrape the sword structure along the sealing surface 61 with metal sealer 6, solid powder particle in the valve pocket will enter in the annular groove under the guiding of scraping the sword structure like this, thereby avoid the powder in the valve pocket to enter metallic sealing section between spheroid and the valve seat.
Claims (3)
1. wear resistance ball valve, comprise valve body, the front and rear part correspondence of valve body be provided with the fluid passage, be provided with the valve pocket that is communicated with fluid passage, valve body front and rear part in valve body lower portion, in valve pocket, be provided with spheroid as spool, respectively be provided with between the fluid passage of described valve pocket and valve body front and rear part one with the corresponding valve seat that is sealed and matched of spheroid, on valve seat, be installed with metal sealer with ball seal position contacting place, metal sealer on the valve seat comprises the sealing surface that contacts with ball seal and towards the side of valve pocket, it is characterized in that: be provided with annular groove towards the side of valve pocket on the metal sealer of described valve seat, the groove of annular groove is along the sword structure is scraped in formation with the sealing surface of metal sealer is crossing.
2. wear resistance ball valve according to claim 1 is characterized in that: described valve body comprises main valve body and is connected in side valve body on the main valve body by bolt that what fluid passage, described front and rear part was corresponding respectively is arranged on main valve body and the side valve body.
3. wear resistance ball valve according to claim 2, it is characterized in that: the valve seat that is provided with between the anterior fluid passage on described valve pocket and the main valve body is movable valve seat, on the inwall of main valve body, be provided with the first step hole of extending along anterior fluid passage bearing of trend with movable valve seat opposite position place, be provided with by bottom, first step hole to the second step hole of extending in bottom, first step hole away from the spheroid direction, in the first step hole that is slidedly assemblied in main valve body of movable valve seat correspondence, be provided with the first annular table terrace movable valve seat with opposite position place, first step main valve body hole, roof pressure is equipped with the butterfly spring between the first annular table terrace of the first step hole of main valve body and movable valve seat, leave first cavity volume between the first annular table terrace of the second step hole of main valve body and movable valve seat, in first cavity volume, be provided with first seal ring and first pad, one side roof pressure of first pad is on first seal ring, opposite side cooperates with the corresponding end roof pressure of butterfly spring, side in the close spheroid of the first annular table terrace on movable valve seat is provided with the second annular table terrace, leave second cavity volume between the second annular table terrace of movable valve seat and the first step hole of main valve body, be provided with second seal ring and second pad in second cavity volume, a side roof pressure of second pad is in second seal ring, its opposite side cooperates with the corresponding end roof pressure of butterfly spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201077619U CN202056338U (en) | 2011-04-13 | 2011-04-13 | Abrasion-resistant ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201077619U CN202056338U (en) | 2011-04-13 | 2011-04-13 | Abrasion-resistant ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202056338U true CN202056338U (en) | 2011-11-30 |
Family
ID=45016310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201077619U Expired - Fee Related CN202056338U (en) | 2011-04-13 | 2011-04-13 | Abrasion-resistant ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202056338U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900863A (en) * | 2012-10-26 | 2013-01-30 | 南通龙源电站阀门有限公司 | Quick assembly and disassembly ball valve |
| CN103775674A (en) * | 2014-01-21 | 2014-05-07 | 张家港富瑞特种装备股份有限公司 | Low-temperature spherical valve |
| CN111287673A (en) * | 2020-03-13 | 2020-06-16 | 北京中煤矿山工程有限公司 | Raise boring machine guide hole nipple joint with mud return-proof device |
-
2011
- 2011-04-13 CN CN2011201077619U patent/CN202056338U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900863A (en) * | 2012-10-26 | 2013-01-30 | 南通龙源电站阀门有限公司 | Quick assembly and disassembly ball valve |
| CN103775674A (en) * | 2014-01-21 | 2014-05-07 | 张家港富瑞特种装备股份有限公司 | Low-temperature spherical valve |
| CN111287673A (en) * | 2020-03-13 | 2020-06-16 | 北京中煤矿山工程有限公司 | Raise boring machine guide hole nipple joint with mud return-proof device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20150413 |
|
| EXPY | Termination of patent right or utility model |