CN2387331Y - Horizontal V-shape elastic seal base suitable for flexible sealing butterfly damper - Google Patents
Horizontal V-shape elastic seal base suitable for flexible sealing butterfly damper Download PDFInfo
- Publication number
- CN2387331Y CN2387331Y CN 99229482 CN99229482U CN2387331Y CN 2387331 Y CN2387331 Y CN 2387331Y CN 99229482 CN99229482 CN 99229482 CN 99229482 U CN99229482 U CN 99229482U CN 2387331 Y CN2387331 Y CN 2387331Y
- Authority
- CN
- China
- Prior art keywords
- seat
- sealing seat
- elastic packing
- butterfly
- valve
- 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
The utility model relates to a horizontal V-shaped elastic sealing seat for single-eccentric and double-eccentric soft sealing butterfly valves which can adjust and cut off in transmission pipelines of media, such as oil, water, gas, etc. The utility model is composed of a valve body 1, a valve cap 2, an elastic sealing seat 3 and a butterfly plate 4. The included angle of both sides of the elastic sealing seat 3 is an acute angle. One or two centering rings 7 are arranged on the side surfaces of the elastic sealing seat. Sealing lips which are in contact with the butterfly plate 4 are circular arc double lips 6. The symmetric axis of the elastic sealing seat 3 is intersected with the ball core of a ball body in which the butterfly plate 4 is positioned. The structure enables the butterfly valve to have good sealing effects. The utility model can automatically compensate for the abrasion of the sealing seat and the reduction of resilience force. The utility model has the advantages of high safety and long service life.
Description
The utility model relates to a kind of single off-centre of regulating and damming, the V font elastic packing for sleeping in of two eccentric soft sealing butterfly valves in medium transport pipelines such as water, oil, gas.
Butterfly valve is widely used in fields such as plumbing, sewage treatment, building, air-conditioning, petrochemical industry, chemical industry, food, medicine, light textile, papermaking, water power, boats and ships, metallurgy, energy system as the cut-off device in the fluid line.No matter existing soft sealing butterfly valve, its sealing seat are full encapsulate or inserted, are fixing with combining of valve body or butterfly plate, and the shortcoming of this structure is:
One, the elastic packing seat is because of wearing and tearing or ratio drops tired, that the rebound elasticity that wears out tends to become weak the back sealing pair, and seepage, leakage can't be avoided, the function that final forfeiture is dammed.
Two, in order to dam under specified pressure, sealed cover ratio pressure must the corresponding certain value that reaches, and promptly the magnitude of interference between the sealing pair must reach the amount that contends with specified pressure medium, so the open and close torque of valve is quite big, the open and close effort.
Three, butterfly valve can only be suitable for unidirectional damming.If oppositely water inlet, then butterfly plate can be made a concession by pressurized, and seal pressure sharply descends, and is cause forfeiture, so be only limited to unidirectional damming.
The purpose of this utility model is that a kind of sealing of searching is reliable, light, can the two-way soft sealing structure that dams.
The technological scheme that realizes above-mentioned purpose is that elastic packing seat 3 is the V font that crouches, be loaded in the triangular groove 8 of valve body 1 and valve gap 2 formations, elastic packing seat 3 bi-side angles are acute angle, on have one the circle or two the circle fixed core rings 7, the sealing lip that contacts with butterfly plate 4 is circular arc lips 6, and its axis of symmetry is by the centre of sphere 5 of dish plate 4.
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing is a structural representation of the present utility model.
One, butterfly plate 4 is the part of spheroid, the centre of sphere 5 of the lips axis of symmetry of elastic packing seat 3 by butterfly plate 4, so the sealing load sensing centre of sphere 5, and with the perpendicular positive pressure of butterfly plate sphere, good sealing effect.
Two, v font elastic packing seat 3 bi-side angles for sleeping in are acute angle, and the sealing lip that contacts with butterfly plate 4 is circular arc lips 6.One or two circle fixed core rings 7 are established in sealing seat 3 sides, so that valve body 1 butterfly plate 4 keeps with one heart.Elastic packing seat 3 is installed in the triangular groove 8 of valve body 1 and valve gap 2 formations, and the gap of moving about arranged, if can import self pressure of medium in the sealing seat, form back pressure, force the V font elastic packing seat that crouches to produce resiliently deformable, form enough seal pressures, and pressure medium and seal pressure are in direct ratio, can keep normal sealing, can play automatic compensation to the wearing and tearing of sealing seat and the decline of spring-back force again, so safe in utilization and the life-span is long.
Three, sealing seat 3 is in the shape of the letter V, and it and sealing seat trench geometry are coincide, and after pressure medium imported the sealing seat chamber, bi-side were subjected to the component effect simultaneously, and fixed core ring 7 location are arranged in addition, avoids pressure medium that sealing seat 3 is gone out Seal cage when valve opening.
Claims (3)
1, a kind of V-shape elastic packing seat for sleeping in that is used for soft sealing butterfly valve is characterized in that elastic packing seat 3 bi-side angles are acute angle, establishes a circle or two circle fixed core rings 7 on the side, and the sealing lip that contacts with butterfly plate 4 is circular arc lips 6.
2,, it is characterized in that the centre of sphere 5 of the spheroid at the axis of symmetry of elastic packing seat 3 and butterfly plate 4 places intersects according to the claim 1 described V font elastic packing seat for sleeping in that is used for soft seal dish valve.
3, the V font elastic packing seat for sleeping in that is used for soft sealing butterfly valve according to claim 1 is characterized in that the circular arc lips 6 of elastic packing seat 3 have certain magnitude of interference with butterfly plate 4.Between sealing seat groove 8 that valve body 1 and valve gap 2 constitute and the V font spring support 3 for sleeping in suitable gap is arranged, make sealing seat 3 that an amount of space of moving about be arranged in groove 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229482 CN2387331Y (en) | 1999-09-27 | 1999-09-27 | Horizontal V-shape elastic seal base suitable for flexible sealing butterfly damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229482 CN2387331Y (en) | 1999-09-27 | 1999-09-27 | Horizontal V-shape elastic seal base suitable for flexible sealing butterfly damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2387331Y true CN2387331Y (en) | 2000-07-12 |
Family
ID=34018719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99229482 Expired - Fee Related CN2387331Y (en) | 1999-09-27 | 1999-09-27 | Horizontal V-shape elastic seal base suitable for flexible sealing butterfly damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2387331Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886703A (en) * | 2010-08-18 | 2010-11-17 | 上海开维喜阀门集团有限公司 | Combined circular groove for butterfly valve seat of molecular sieve |
| CN102808957A (en) * | 2012-08-20 | 2012-12-05 | 中阀科技(长沙)阀门有限公司 | Butterfly valve |
| CN107013688A (en) * | 2017-06-13 | 2017-08-04 | 石家庄三环阀门股份有限公司 | The hollow butterfly valve plate of biconvex |
| CN111720567A (en) * | 2020-06-10 | 2020-09-29 | 肯卓自控工程(江苏)有限公司 | Pressure balance type sleeve regulating valve core seat sealing structure |
-
1999
- 1999-09-27 CN CN 99229482 patent/CN2387331Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886703A (en) * | 2010-08-18 | 2010-11-17 | 上海开维喜阀门集团有限公司 | Combined circular groove for butterfly valve seat of molecular sieve |
| CN101886703B (en) * | 2010-08-18 | 2012-08-29 | 上海开维喜阀门集团有限公司 | Combined circular groove for butterfly valve seat of molecular sieve |
| CN102808957A (en) * | 2012-08-20 | 2012-12-05 | 中阀科技(长沙)阀门有限公司 | Butterfly valve |
| CN102808957B (en) * | 2012-08-20 | 2014-11-05 | 中阀科技(长沙)阀门有限公司 | Butterfly valve |
| CN107013688A (en) * | 2017-06-13 | 2017-08-04 | 石家庄三环阀门股份有限公司 | The hollow butterfly valve plate of biconvex |
| CN107013688B (en) * | 2017-06-13 | 2023-03-10 | 石家庄三环阀门股份有限公司 | Double convex surface hollow butterfly valve plate |
| CN111720567A (en) * | 2020-06-10 | 2020-09-29 | 肯卓自控工程(江苏)有限公司 | Pressure balance type sleeve regulating valve core seat sealing structure |
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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 |