CN2795579Y - Wedge type high temperature gate valve - Google Patents
Wedge type high temperature gate valve Download PDFInfo
- Publication number
- CN2795579Y CN2795579Y CN 200520071957 CN200520071957U CN2795579Y CN 2795579 Y CN2795579 Y CN 2795579Y CN 200520071957 CN200520071957 CN 200520071957 CN 200520071957 U CN200520071957 U CN 200520071957U CN 2795579 Y CN2795579 Y CN 2795579Y
- Authority
- CN
- China
- Prior art keywords
- valve
- high temperature
- wedge
- utility
- model
- 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
Links
Abstract
The utility model relates to a wedge-shaped high temperature gate valve which comprises a valve body, a valve seat, a valve cap, a valve rod, a gate plate, a handwheel, a sealing member and an installation member, wherein the gate plate is a wedge-shaped structure, and the gate plate and the valve seat form a wedge-shaped sealing pair. The upper end part of the valve rod is provided with a spacer device. When the utility model is closed under high temperature operating conditions, the valve is not tightly closed. The phenomenon occurrence of excessive expansion of the gate plate and the valve seat under the condition of the fluctuation of medium temperature is prevented. The utility model has the advantage that the utility model is flexibly opened under high temperature operating conditions, and is suitable for operating conditions of media, such as high temperature fume, catalysts, etc.
Description
Technical field
The utility model relates to a kind of gate valve.
Background technique
The structure of Wedge gate valve mainly contains formations such as valve body, valve seat, valve gap, valve rod, flashboard, handwheel, and its flashboard is a wedge-shaped structure, and constitutes the wedge-type seal pair between the valve seat.Existing Wedge gate valve is when closing, generally making handwheel change motionless to flashboard and valve seat tight seal just stops, the shortcoming of this structure is: under worst hot case, because the material deliquescing of metal flashboard and valve seat, make the dead excessively of valve pass, when medium temperature fluctuateed, it is dead that flashboard and valve seat are expanded, and valve is not opened.
Summary of the invention
The purpose of this utility model is the shortcoming that exists at prior art, provides and opens wedge-type high temperature cut-off valve flexibly under a kind of worst hot case.
The technological scheme that realizes the utility model purpose comprises valve body, valve seat, valve gap, valve rod, flashboard, handwheel and Sealing and assembling set, and flashboard is a wedge-shaped structure, and constitutes the wedge-type seal pair between the valve seat, mainly is to be provided with limit stoper in the upper end portion of valve rod.
The utility model beneficial effect compared with prior art is: when the worst hot case lower valve is closed, because the upper end portion of valve rod is provided with limit stoper, can not make valve close deadly excessively, the generation of flashboard and the bloated dead phenomenon of valve seat has and open advantage flexibly under worst hot case when having prevented the medium temperature fluctuation.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Now further describe the technical solution of the utility model in conjunction with the accompanying drawings and embodiments.
Wedge-type high temperature cut-off valve as shown in Figure 1, comprise valve body 1, valve seat 2, valve gap 4, valve rod 5, flashboard 3, handwheel 9 and Sealing and assembling set, flashboard 3 is a wedge-shaped structure, and constitute the wedge-type seal pair between the valve seat 2, be provided with limit stoper 10 in the upper end portion of valve rod 5, prevent to close between flashboard 3 and the valve seat 2 tension, flashboard 3 adopts high chromium nickel high temperature stainless steel material with valve seat 2.Described limit stoper 10 constitutes for the nut that is fixed in valve rod 5 upper end portions.Between valve gap 4 and the valve rod 5 stuffing box packing 7 is set, stuffing box packing 7 compresses installation by metallic stuffing pad 6 and Gland 8.
Claims (2)
1, a kind of wedge-type high temperature cut-off valve, comprise valve body (1), valve seat (2), valve gap (4), valve rod (5), flashboard (3), handwheel (9) and Sealing and assembling set, flashboard (3) is a wedge-shaped structure, and constitute the wedge-type seal pair between the valve seat (2), it is characterized in that being provided with limit stoper (10) in the upper end portion of valve rod (5).
2, wedge-type high temperature cut-off valve according to claim 1 is characterized in that limit stoper (10) constitutes for the nut that is fixed in valve rod (5) upper end portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071957 CN2795579Y (en) | 2005-05-25 | 2005-05-25 | Wedge type high temperature gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071957 CN2795579Y (en) | 2005-05-25 | 2005-05-25 | Wedge type high temperature gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2795579Y true CN2795579Y (en) | 2006-07-12 |
Family
ID=36813334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520071957 Expired - Fee Related CN2795579Y (en) | 2005-05-25 | 2005-05-25 | Wedge type high temperature gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2795579Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410993A (en) * | 2013-07-31 | 2013-11-27 | 中科华核电技术研究院有限公司 | Gate valve of nuclear fuel transfer device |
| CN104373616A (en) * | 2014-10-22 | 2015-02-25 | 盐城法尔机械有限公司 | Dustproof seal gate valve and operation method thereof |
| CN104405946A (en) * | 2014-11-28 | 2015-03-11 | 苏州市吴中区大陆电子设备厂 | Valve rod limit structure |
-
2005
- 2005-05-25 CN CN 200520071957 patent/CN2795579Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410993A (en) * | 2013-07-31 | 2013-11-27 | 中科华核电技术研究院有限公司 | Gate valve of nuclear fuel transfer device |
| CN103410993B (en) * | 2013-07-31 | 2016-01-20 | 中科华核电技术研究院有限公司 | Gate valve of nuclear fuel transfer device |
| CN104373616A (en) * | 2014-10-22 | 2015-02-25 | 盐城法尔机械有限公司 | Dustproof seal gate valve and operation method thereof |
| CN104405946A (en) * | 2014-11-28 | 2015-03-11 | 苏州市吴中区大陆电子设备厂 | Valve rod limit structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Ying Jianzhong Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060712 Termination date: 20090625 |