CN2663751Y - On-line maintenance pipeline ball valve - Google Patents
On-line maintenance pipeline ball valve Download PDFInfo
- Publication number
- CN2663751Y CN2663751Y CN 200320107977 CN200320107977U CN2663751Y CN 2663751 Y CN2663751 Y CN 2663751Y CN 200320107977 CN200320107977 CN 200320107977 CN 200320107977 U CN200320107977 U CN 200320107977U CN 2663751 Y CN2663751 Y CN 2663751Y
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- China
- Prior art keywords
- valve
- ball
- seal
- rubber seal
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
An on-line maintenance pipeline ball valve comprises a valve body, an upper stationary shaft, a lower stationary shaft arranged on the valve body, a valve ball pivoted between the upper stationary shaft and the lower stationary shaft and a gland bush arranged on two sides of upstream and downstream of a valve chamber. The utility model is characterized in that the gland bush consists of a detachable rubber seal part arranged on the valve body and a floating metal rubber seal part laid in a valve seal base; the valve body is provided with a manhole with an aperture more than the rubber seal part and a manhead; centerlines of the manhole and the valve body flow passage are in the same plane and a cut angle between the centerlines is ninety degrees. The utility model can solve a technical problem of replacing and maintaining the seal parts in an on-line running state.
Description
Technical field:
The utility model is about valve, particularly about carrying out the valve of on-line maintenance.
Background technique:
Be arranged on ball valve on the pipeline in long-term using process, its Sealing can not damage unavoidably, so regular meeting produces and leaks.In a single day the current pipeline ball valve leaks, must make pipeline out of service, ball valve is disassembled from pipeline disintegrate, and has only so, the Sealing that damages could be changed.So, not only increase valve engineering time and expense, and for large-scale valve, this dismounting is disintegrated and ressembled is the work of a very tired lock and effort.The more important thing is the stoppage in transit of pipeline, will cause great economic loss.Though on some existing ball valves, be provided with urgent sealing system, when Sealing damages the appearance leakage,, realize promptly sealing can inject special sealing compound to sealing surface by this urgent sealing system.But the sealing that this sealing compound produces is a kind of measure of interim emergency, non-long-term plan.
Summary of the invention:
The purpose of this utility model is to provide a kind of on-line maintenance pipeline ball-valve, solves ball valve can carry out the Sealing repair and replacement under the on-line operation state technical problem.
The technological scheme that the utility model solves the problems of the technologies described above is as follows:
A kind of on-line maintenance pipeline ball-valve, comprise valve body, be arranged at last stationary axle and following stationary axle on the valve body, be articulated in the valve ball between stationary axle and following stationary axle and be positioned at the seal arrangement of body cavity upstream and downstream both sides, it is characterized in that: the sealing device is formed by being fixed on the valve ball demountable rubber Sealing and seat floating type metal seal two-part in the valve seal seat; This valve body is provided with access opening and the port lid of aperture greater than above-mentioned rubber seal, and this access opening center line and valve flowing channel centerline and are 90 ° of angles of cut in same horizontal plane.
Described on-line maintenance pipeline ball-valve is characterized in that: be provided with the spring of floating type metal seal being pressed to rubber seal and valve ball in the valve seal seat.
Described on-line maintenance pipeline ball-valve is characterized in that: this rubber seal can have the interior valve seat that is connected with valve ball with screw thread.
Described on-line maintenance pipeline ball-valve is characterized in that: this rubber seal and interior valve seat are inlayed with whole sulfuration and are bonded together.
The utility model is divided into flimsy rubber seal and non-damageable metal seal two-part with seal arrangement, and rubber seal is arranged on the valve ball, and valve body is provided with able to turn on or off access opening.When ball valve was opened, a rubber seal on the valve ball faced access opening.In case produce when leaking so rubber seal damages, it can be threaded to the access opening place, open port lid, just it can be disassembled place under repair or replacing from valve ball with specialist tools, and the normal conveying of pipeline is carried out as usual still, unaffected.In addition, ball valve only is to be positioned at the seal action that the sealing of upstream side is brought into normal play; So sealing that is generally upstream side that damages.The utility model all is arranged on the rapid wear rubber seal of upstream and downstream seal arrangement on the valve ball, when the rubber seal of upstream side damages the generation leakage, as long as easily with valve ball Rotate 180 ° on the spot, rubber seal position exchange with original upstream and downstream, just can recover sealability, this is the existing not available another characteristics of all kinds of ball valves.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model schematic diagram of sealing device.
Fig. 3 is inserted rubber seal structural representation.
Fig. 4 is the schematic representation of the utility model valve ball when being in opening state.
Embodiment:
See also shown in Figure 1ly, the utility model comprises valve body 3, goes up stationary axle 2, stationary axle 6, valve ball 8 and seal arrangement 5 down.Valve body 3 can be made up of main valve body 32 and two side valve bodies 31 that are fixed in its both sides.Side valve body 31 has the runner 311 of hollow, and runner 311 places that are positioned at main valve body 32 1 sides have sealing seat 312.Last stationary axle 2 and following stationary axle 6 are separately fixed on the main valve body 32, and valve ball 8 is articulated between the upper and lower stationary axle 2,6 and is fixed in the inner chamber of valve body 3.Running shaft 1 wore the central shaft hole of stationary axle 2, sealed with rubber seal therebetween; One end of running shaft 1 is connected with valve ball 8 with square body, and its other end that stretches out valve body 3 is connected with rotating actuator with key or square body.Valve ball 8 has a passage 81 that traverses its center, when the rotating actuator rotary driving axle 1 in the external world during around upper and lower stationary axle 2,6 shaft axiss rotation, can make the runner 311 of this passage 81 and two side valve bodies 31 be 90 ° or perforation (referring to Fig. 4) mutually mutually.This main valve body 32 has an access opening 321, and is provided with port lid 7 with these access opening 321 sealings.These access opening 321 center lines and runner 311 centerline and are 90 ° mutually on same horizontal plane.Seal arrangement 5 (referring to Fig. 2) is made up of rubber seal 52 and floating type metal seal 51 two-part.Metal seal 51 places in the sealing seat 312 of side valve body 31, and its periphery forms sealing with rubber seal and 312 of sealing seats.Also be provided with spring 4 in the sealing seat 312, in order to push metal seal 51 to valve ball 8.Rubber seal 52 is arranged on the sphere of valve ball 8, when the passage 81 of valve ball 8 and the runner 311 of valve body 3 are 90 ° when vertical, this rubber seal 52 faces metal seal 51, under the discharge pressure of spring 4 and fluid, the contact end face of this metal seal 51 is pressing corresponding rubber seal 52, forms sealing reliably.The simplest structural type of rubber seal 52 is O-ring seals, and this O-ring seals is embedded in the circular groove ad hoc on the valve ball 8; The interior valve seat of a metal also can be set, and this interior valve seat is connected with valve ball 8 with screw thread and O-ring seals is interposed between interior valve seat and the valve ball 8; Also can use inserted rubber seal 52 shown in Figure 3, it comprises interior valve seat 522 and the rubber ring 521 with screw thread, and rubber ring 521 adopts whole sulfuration to be embedded in the groove of interior valve seat 522, and its outer surface is a little more than the outer surface of valve seat in this 522.When the runner 311 of the passage 81 of valve ball 8 and valve body 3 connects, metal seal 51 is pushed to valve ball by spring 4 and hydrodynamic pressure, the sphere of its contact end face and valve ball 8 is combined closely and is reached sealing, and fluid can not flowed in the valve pocket of sealing between valve ball 8 and the valve body 3.
In case rubber seal 52 damages (what damage generally speaking is the rubber seal 52 that is in upstream side), it can be threaded to over against access opening 321, this moment, ball valve just in time was in the opening state (see figure 4), the sphere that the contact end face of two metal seals 51 of upstream and downstream side is corresponding with valve ball 8 respectively closely contacts, and runner 311 is not communicated with mutually with valve pocket in the valve body 3.Pull down port lid 7, can expose the access opening 321 on the valve body 3, because the aperture of this access opening 321 is greater than the diameter of rubber seal 52, therefore can with special tool the rubber seal 52 that damages be disassembled from valve ball 8 easily, place under repair or replacing, thereby to normal fluid delivery operation, do not produce any influence at all, reach the purpose of on-line maintenance.
Claims (5)
1, a kind of on-line maintenance pipeline ball-valve, comprise valve body, be arranged at last stationary axle and following stationary axle on the valve body, be articulated in the valve ball between stationary axle and following stationary axle and be positioned at the seal arrangement of body cavity upstream and downstream both sides, it is characterized in that: the sealing device is formed by being fixed on the valve ball demountable rubber Sealing and seat floating type metal seal two-part in the valve seal seat; This valve body is provided with access opening and the port lid of aperture greater than above-mentioned rubber seal, and this access opening center line and valve flowing channel centerline and are 90 ° of angles of cut in same horizontal plane.
2, on-line maintenance pipeline ball-valve according to claim 1 is characterized in that: be provided with the spring of floating type metal seal being pressed to rubber seal and valve ball in the valve seal seat.
3, on-line maintenance pipeline ball-valve according to claim 1 is characterized in that: this rubber seal can have the interior valve seat that is connected with valve ball with screw thread.
4, on-line maintenance pipeline ball-valve according to claim 2 is characterized in that: this rubber seal can have the interior valve seat that is connected with valve ball with screw thread.
5, according to claim 1,2,3 or 4 described on-line maintenance pipeline ball-valves, it is characterized in that: this rubber seal and interior valve seat are inlayed with whole sulfuration and are bonded together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320107977 CN2663751Y (en) | 2003-11-12 | 2003-11-12 | On-line maintenance pipeline ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320107977 CN2663751Y (en) | 2003-11-12 | 2003-11-12 | On-line maintenance pipeline ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2663751Y true CN2663751Y (en) | 2004-12-15 |
Family
ID=34342447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320107977 Expired - Fee Related CN2663751Y (en) | 2003-11-12 | 2003-11-12 | On-line maintenance pipeline ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2663751Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363143A (en) * | 2013-06-28 | 2013-10-23 | 联塑科技发展(贵阳)有限公司 | Valve element stationary type PE fuel gas plug valve |
| CN110805714A (en) * | 2019-11-16 | 2020-02-18 | 徐国华 | V-shaped ball valve |
| CN111173952A (en) * | 2020-01-18 | 2020-05-19 | 上海亚奥阀门有限公司 | Forged steel bidirectional hard sealing floating ultralow temperature ball valve |
-
2003
- 2003-11-12 CN CN 200320107977 patent/CN2663751Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363143A (en) * | 2013-06-28 | 2013-10-23 | 联塑科技发展(贵阳)有限公司 | Valve element stationary type PE fuel gas plug valve |
| CN110805714A (en) * | 2019-11-16 | 2020-02-18 | 徐国华 | V-shaped ball valve |
| CN111173952A (en) * | 2020-01-18 | 2020-05-19 | 上海亚奥阀门有限公司 | Forged steel bidirectional hard sealing floating ultralow temperature ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |