CN205371745U - Valve gap that sealing performance is good - Google Patents
Valve gap that sealing performance is good Download PDFInfo
- Publication number
- CN205371745U CN205371745U CN201521020316.3U CN201521020316U CN205371745U CN 205371745 U CN205371745 U CN 205371745U CN 201521020316 U CN201521020316 U CN 201521020316U CN 205371745 U CN205371745 U CN 205371745U
- Authority
- CN
- China
- Prior art keywords
- valve gap
- wedge
- type seal
- bolt
- 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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- Lift Valve (AREA)
Abstract
The utility model discloses a valve gap that sealing performance is good, including valve gap, valve body top, wedge -type seal pad, tie bolt, four close ring, support ring and preloaded bolt, lay four in the valve body and close the ring, the wedge -type seal pad is placed between valve gap and valve body top, tie bolt embolias four and closes the ring and set up and to stack up in the wedge -type seal, the endways preloaded bolt that is equipped with in valve gap upper end, preloaded bolt top position department on the lower side is equipped with the support ring. The utility model discloses a to establish preloaded bolt in the valve gap upper end, if before stepping up, the preloaded bolt that screws earlier makes the valve gap rise, make between valve gap and wedge -type seal pads and form initial sealed condition between valve body and wedge -type seal pads, and contacting area such as valve gap has the coating, are the hardness of the sealed face of increase, improve sealed anti -corrosion, scouring resistance ability, its good contact surface and differential seat angle of formation easily and between the wedge pad to improve sealed effect, corrosion resistance and resistant operating temperature will be selected to the wedge pad.
Description
[technical field]
This utility model relates to the technical field in valve manufacture field, particularly the technical field of the valve gap of a kind of good seal performance.
[background technology]
Valve gap is equipped with the valve part of valve rod sealing member, it is usually used in connecting or supporting actuator, valve gap and valve body can be an entirety, it is also possible to separating, valve gap is exactly top cover, it is the removable part of valve body molectron interarea, its conventional bolt is connected with valve body, and it is subject to the part of pressure, is therefore the same with the design condition of valve housing, on existing market, the valve gap of a kind of good seal performance is required for masses.
[utility model content]
The purpose of this utility model solves the problems of the prior art exactly, it is proposed to the valve gap of a kind of good seal performance, manufactures simple in construction, and easy to use, cost performance is higher.
For achieving the above object, the utility model proposes the valve gap of a kind of good seal performance, including valve gap, body top, wedge-type seal pad, turnbuckle, four cyclizations, pushing out ring and pretension bolt, described valve body is laid four cyclizations, described wedge-type seal pad is placed between valve gap and body top, described turnbuckle is inserted in four cyclizations and is arranged on wedge-type seal pad, described valve gap upper end the is endways pretension bolt that is provided with, and position on the lower side, described pretension bolt top is provided with a pushing out ring.
As preferably, described turnbuckle and pretension bolt are provided with slipmat.
As preferably, described valve gap, valve body and wedge-type seal pad contact site i.e. sealing surface weld deposit coating, coating thickness is about 2mm.
As preferably, described wedge-type seal pad is corrosion resistance and resistance to and resistance to operating temperature.
The beneficial effects of the utility model: this utility model will be by setting pretension bolt in valve gap upper end, before boosting, first screw pretension bolt, valve gap is made to increase, make between valve gap and wedge-type seal pad and between valve body and wedge-type seal pad, form initial sealing condition, and there is coating the contacts site such as valve gap, it is the hardness increasing sealing surface, improve anti-corrosion, the flushing resistance of sealing surface, it easily and forms good contact surface and differential seat angle between wedge piece, thus improving sealing effectiveness, wedge piece to select corrosion resistance and resistance to operating temperature.
Feature of the present utility model and advantage will be described in detail in conjunction with accompanying drawing by embodiment.
[accompanying drawing explanation]
Fig. 1 is the sectional structure schematic diagram of the valve gap of a kind of good seal performance of this utility model.
In figure: 1-valve gap, 2-body top, 3-wedge-type seal pad, 4-turnbuckle, 5-tetra-cyclization, 6-prop up pushing out ring, 7-pretension bolt.
[detailed description of the invention]
Consult Fig. 1, the valve gap of a kind of good seal performance of this utility model, including valve gap 1, body top 2, wedge-type seal pad 3, turnbuckle 4, four cyclizations 5, prop up pushing out ring 6 and pretension bolt 7, described valve body is laid four cyclizations 5, described wedge-type seal pad 3 is placed between valve gap 1 and body top 2, described turnbuckle 4 is inserted in four cyclizations 5 and is arranged on wedge-type seal pad 3, described valve gap 1 upper end is endways is provided with pretension bolt 7, position on the lower side, described pretension bolt 7 top is provided with a pushing out ring 6, described turnbuckle 4 and pretension bolt 7 are provided with slipmat, described valve gap 1, with wedge-type seal pad 3 contact site i.e. sealing surface weld deposit coating, coating thickness is about 2mm, described wedge-type seal pad 3 is corrosion resistance and resistance to and resistance to operating temperature.
Utility model works process:
The valve gap of a kind of good seal performance of this utility model is in the course of the work, pretension bolt 7 will be set in valve gap 1 upper end, before boosting, first screw pretension bolt 7, valve gap 1 is made to increase, make between valve gap 1 and wedge-type seal pad 4 and between valve body and wedge-type seal pad 3, form initial sealing condition, and there is coating the contacts site such as valve gap 1, it is the hardness increasing sealing surface, improve anti-corrosion, the flushing resistance of sealing surface, it easily and forms good contact surface and differential seat angle between wedge piece, thus improving sealing effectiveness, wedge piece to select corrosion resistance and resistance to operating temperature.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, any scheme after this utility model simple transformation is belonged to protection domain of the present utility model.
Claims (4)
1. the valve gap of a good seal performance, it is characterized in that: include valve gap (1), body top (2), wedge-type seal pad (3), turnbuckle (4), four cyclizations (5), prop up pushing out ring (6) and pretension bolt (7), described valve body is laid four cyclizations (5), described wedge-type seal pad (3) is placed between valve gap (1) and body top (2), described turnbuckle (4) is inserted in four cyclizations (5) and is arranged on wedge-type seal pad (3), described valve gap (1) upper end is endways is provided with pretension bolt (7), position on the lower side, described pretension bolt (7) top is provided with a pushing out ring (6).
2. the valve gap of a kind of good seal performance as claimed in claim 1, it is characterised in that: described turnbuckle (4) and pretension bolt (7) are provided with slipmat.
3. the valve gap of a kind of good seal performance as claimed in claim 1, it is characterised in that: described valve gap (1) and wedge-type seal pad (3) contact site i.e. sealing surface weld deposit coating, coating thickness is about 2mm.
4. the valve gap of a kind of good seal performance as claimed any one in claims 1 to 3, it is characterised in that: described wedge-type seal pad (3) is corrosion resistance and resistance to and resistance to operating temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020316.3U CN205371745U (en) | 2015-12-10 | 2015-12-10 | Valve gap that sealing performance is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020316.3U CN205371745U (en) | 2015-12-10 | 2015-12-10 | Valve gap that sealing performance is good |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205371745U true CN205371745U (en) | 2016-07-06 |
Family
ID=56279293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521020316.3U Expired - Fee Related CN205371745U (en) | 2015-12-10 | 2015-12-10 | Valve gap that sealing performance is good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205371745U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131353A (en) * | 2017-04-25 | 2017-09-05 | 中国船舶重工集团公司第七二五研究所 | A kind of two-way low operational torque high-pressure stop valve |
| CN112610742A (en) * | 2020-12-02 | 2021-04-06 | 山东齐鲁电机制造有限公司 | High-pressure main steam valve of steam turbine |
-
2015
- 2015-12-10 CN CN201521020316.3U patent/CN205371745U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131353A (en) * | 2017-04-25 | 2017-09-05 | 中国船舶重工集团公司第七二五研究所 | A kind of two-way low operational torque high-pressure stop valve |
| CN112610742A (en) * | 2020-12-02 | 2021-04-06 | 山东齐鲁电机制造有限公司 | High-pressure main steam valve of steam turbine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20161210 |