CN203146875U - Super supercritical forged-steel gate valve - Google Patents
Super supercritical forged-steel gate valve Download PDFInfo
- Publication number
- CN203146875U CN203146875U CN 201320102367 CN201320102367U CN203146875U CN 203146875 U CN203146875 U CN 203146875U CN 201320102367 CN201320102367 CN 201320102367 CN 201320102367 U CN201320102367 U CN 201320102367U CN 203146875 U CN203146875 U CN 203146875U
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- valve
- gate
- valve body
- valve seat
- sealing
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Abstract
The utility model relates to a super supercritical forged-steel gate valve. The gate valve comprises a valve body, a valve seat, a gate plate, a valve rod, a valve cover, a hand wheel, sealing members and mounting members, wherein the valve body is a forged steel member, a sealing face of the gate plate is of a wedge-shaped structure, and the valve seat and the gate plate are provided with wedge-shaped sealing faces matched with each other. The gate valve is mainly characterized in that an elastic ring is arranged between the valve seat and the valve body. The elastic ring can absorb the high-temperature expansion between the gate plate and the valve seat, then, the gate plate and the valve seat are prevented from being jammed due to high-temperature expansion, and the opening torque of the gate valve is reduced, so that the gate valve has the advantages of convenience in operation and the like; and the gate valve is applicable to ultrahigh-temperature and high-pressure valves of generator sets of heat power stations.
Description
Technical field
The utility model relates to valve field, particularly about a kind of gate valve.The utility model is applicable to the superhigh temperature high pressure valve of heat power station generator set.
Background technique
In the heat power station generator set, operating mode is High Temperature High Pressure and abrasiveness medium, and valve part adopts the forged steel material, improves heatproof, withstand voltage properties.The gate valve that existing heat power station generator set uses generally is made up of valve body, valve seat, flashboard, valve rod, valve gap, handwheel, Sealing and assembling set, and valve body adopts forged steel pieces, superhigh temperature resistant, high pressure.The flashboard sealing surface adopts wedge-shaped structure, and valve seat and flashboard have the wedge-type seal face that cooperatively interacts, and reduces sealing pair and opens and closes frictional force.Its major defect is: in overcritical thermal power generation unit, high temperature expands flashboard and valve seat is expanded extremely, and unlatching moment is big.
Summary of the invention
The purpose of this utility model is the shortcoming that exists at prior art, and a kind of ultra supercritical forged steel gate valve that moment is little, operation is light of opening is provided.
The technical solution of the utility model comprises valve body, valve seat, flashboard, valve rod, valve gap, handwheel, Sealing and assembling set composition, valve body adopts forged steel pieces, the flashboard sealing surface adopts wedge-shaped structure, valve seat and flashboard have the wedge-type seal face that cooperatively interacts, and mainly are to be provided with elastic ring between valve seat and valve body.
In above technological scheme, valve gap adopts and adds the long cylinder forged steel pieces, is installed in the lumen of valve body by gland seal.
In above technological scheme, be provided with the metal self-sealing device between valve gap and the valve body, described metal self-sealing device is cooperatively interacted by an outer conical surface with the metal trim ring of internal conical surface and valve gap outside and forms.
The utility model has the advantages that between valve seat and valve body elastic ring is set, the high temperature between absorption flashboard and the valve seat expands, and it is dead to prevent that flashboard and valve seat high temperature from expanding, and reduces gate valve and opens moment, has the characteristics such as light of operating.
Description of drawings
Fig. 1 is structure sectional view of the present utility model.
Embodiment
Ultra supercritical forged steel gate valve as shown in Figure 1, comprise valve body 1, valve seat 3, flashboard 4, valve rod 5, valve gap 7, handwheel 16, Sealing and assembling set composition, valve body 1 adopts forged steel pieces, has stronger heat resisting and pressure resisting performance, flashboard 4 sealing surfaces adopt wedge-shaped structure, valve seat 3 has the wedge-type seal face that cooperatively interacts with flashboard 4, between valve seat 3 and valve body 1, be provided with elastic ring 2, elastic ring 2 can absorb the swell increment between valve seat 3 and the valve body 1 under the worst hot case, prevent both Yin Gaowen from expanding and stuck, open light.
Be provided with the metal self-sealing device between valve gap 7 and the valve body 1, described metal self-sealing device is cooperatively interacted by the outer conical surface in a metal trim ring 6 with internal conical surface and valve gap 7 outsides and forms, the thrust that pressure medium makes progress to valve gap 7, make metal trim ring 6 wedging selfsealings between valve gap 7 and valve body 1, improve the lumen sealability.
At valve gap 7 middle parts fixed installation pressed seat 9, evenly be shaped on screw in these pressed seat 9 circumferential plane, construction bolt in screw, bolt lower end surface hold out against on gland 8 in the plane, compress gland 8 and metal trim ring 6 is compressed are installed between valve gap 7 and the valve body 1 by regulating bolt.Gland 8 is fixedlyed connected with valve body 1 by screw.
Claims (3)
1. ultra supercritical forged steel gate valve, comprise valve body (1), valve seat (3), flashboard (4), valve rod (5), valve gap (7), handwheel (16), Sealing and assembling set composition, valve body (1) adopts forged steel pieces, flashboard (4) sealing surface adopts wedge-shaped structure, valve seat (3) has the wedge-type seal face that cooperatively interacts with flashboard (4), it is characterized in that being provided with elastic ring (2) between valve seat (3) and valve body (1).
2. ultra supercritical forged steel gate valve according to claim 1 is characterized in that valve gap (7) employing adds the long cylinder forged steel pieces, is installed in the lumen of valve body (1) by gland (8) sealing.
3. ultra supercritical forged steel gate valve according to claim 1 and 2, it is characterized in that being provided with the metal self-sealing device between valve gap (7) and the valve body (1), described metal self-sealing device is cooperatively interacted by the outer conical surface in a metal trim ring (6) with internal conical surface and valve gap (7) outside and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320102367 CN203146875U (en) | 2013-03-04 | 2013-03-04 | Super supercritical forged-steel gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320102367 CN203146875U (en) | 2013-03-04 | 2013-03-04 | Super supercritical forged-steel gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146875U true CN203146875U (en) | 2013-08-21 |
Family
ID=48974399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320102367 Expired - Lifetime CN203146875U (en) | 2013-03-04 | 2013-03-04 | Super supercritical forged-steel gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899780A (en) * | 2014-03-05 | 2014-07-02 | 大丰市奥凯流体机械有限公司 | Pressure self-sealing sluice valve |
-
2013
- 2013-03-04 CN CN 201320102367 patent/CN203146875U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899780A (en) * | 2014-03-05 | 2014-07-02 | 大丰市奥凯流体机械有限公司 | Pressure self-sealing sluice valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wei Yubin Inventor after: Chen Juandan Inventor after: Ye Qianmao Inventor after: Chen Shengcheng Inventor after: Jin Yan Inventor after: Ma Jingyong Inventor after: Wu Jiandong Inventor before: Wei Yubin Inventor before: Chen Juandan Inventor before: Ye Qianmao Inventor before: Chen Shengwu Inventor before: Jin Yan Inventor before: Ma Jingyong Inventor before: Wu Jiandong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WEI YUBIN CHEN JUANDAN YE QIANMAO CHEN SHENGWU JIN YAN MA JINGYONG WU JIANDONG TO: WEI YUBIN CHEN JUANDAN YE QIANMAO CHEN SHENGCHENG JIN YAN MA JINGYONG WU JIANDONG |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180911 Address after: 323006 3 Bi Zhong Road, Bi Hu Town, Liandu District, Lishui, Zhejiang. Patentee after: South Valve Technology Co.,Ltd. Address before: 325102 Zhejiang province Yongjia County Oubei Town East Industrial Zone Patentee before: Southern Valve Manufacture Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
|
| CX01 | Expiry of patent term |