CN203146851U - Super supercritical forged-steel stop valve - Google Patents
Super supercritical forged-steel stop valve Download PDFInfo
- Publication number
- CN203146851U CN203146851U CN 201320102383 CN201320102383U CN203146851U CN 203146851 U CN203146851 U CN 203146851U CN 201320102383 CN201320102383 CN 201320102383 CN 201320102383 U CN201320102383 U CN 201320102383U CN 203146851 U CN203146851 U CN 203146851U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- centerline
- sealing
- conical surface
- 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 - Lifetime
Links
Landscapes
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to a super supercritical forged-steel stop valve. The stop valve comprises a valve body, a valve clack, a valve seat, a valve rod, a valve cover, a hand wheel, sealing members and mounting members, wherein the valve body is a forged steel member. The stop valve is mainly characterized in that the valve body is of an upper-inlet lower-outlet structure, the centerline of an inlet passage of the valve body is located above the centerline of a pipeline, an included angle is formed by the centerline of the inlet passage of the valve body and the centerline of the pipeline, the centerline of an outlet passage of the valve body is located below the centerline of the pipeline, an included angle is formed by the centerline of the outlet passage of the valve body and the centerline of the pipeline, the lower part of the valve clack is formed by two conical faces of different conicities, a lower conical face of the valve clack has the conicity matched with a conical face of the valve seat, the valve cover is of a lengthened cylindrical structure and is mounted in the middle cavity of the valve body in a sealing and pressing manner by a pressing cover, and heat dissipating fins are arranged at the middle part of the pressing cover. During the closing of the valve clack, foreign matters on sealing faces of the valve clack and the valve seat are flushed automatically, so as to reduce the abrasion to the sealing faces; meanwhile, the temperature of sealing filler of the valve rod is reduced, so as to improve sealing performance; and the stop valve has the advantages of good sealing performance, long product service life and the like and 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 stop 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 stop valve that existing heat power station generator set uses is made up of valve body, flap, valve seat, valve rod, valve gap, handwheel, Sealing and assembling set, flap and valve seat have the sealing surface that cooperatively interacts, go out structure on advancing under the general employing of valve body, adopt the stuffing box packing sealing between valve rod and the valve gap.Its major defect is: medium is bigger to washing away of flap sealing surface, and the stuffing box packing temperature rise is big, and poor sealing performance, working life lack.
Summary of the invention
The purpose of this utility model is the shortcoming that exists at prior art, and the ultra supercritical forged steel stop valve of a kind of good seal performance, long product lifecycle is provided.
The technical solution of the utility model comprises valve body, flap, valve seat, valve rod, valve gap, handwheel, Sealing and assembling set, valve body adopts forged steel pieces, mainly be that valve body adopts and to go out structure under enterprising, its inlet passage center line forms angle above pipe centerline, the outlet passage center line forms angle below pipe centerline, the flap bottom adopts two sections different conical surfaces of tapering to form, conical surface has the tapering that cooperatively interacts with the valve seat conical surface under it, valve gap adopts and lengthens cylindrical structural, be fitted in the valve body lumen by gland seal, the gland middle part is provided with radiating fin.
In above technological scheme, the fitted seal conical surface of flap and valve seat is formed by hard alloy overlay welding respectively.
In above technological scheme, gland cooperates with valve body valve gap compressed by screw thread and is installed in the valve body lumen, 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 the valve body employing goes out structure under enterprising, the flap bottom adopts two sections different conical surfaces of tapering to form, its hypomere conical surface has and the sealing that cooperatively interacts of valve seat conical surface, medium washes away little to the flap sealing surface, close in the closed procedure at flap, along with reducing of circulation area, velocity of medium strengthens, foreign material on automatic flush valve lobe and the sealing surface of seat reduce the wearing and tearing of sealing surface; Valve gap adopts and lengthens cylindrical structural, is fitted in the valve body lumen by gland seal, and the gland middle part is provided with radiating fin, reduces the temperature of valve stem packing, improves sealability.Have advantages such as good seal performance, long product lifecycle.
Description of drawings
Fig. 1 is structure sectional view of the present utility model.
Embodiment
Ultra supercritical forged steel stop valve as shown in Figure 1 comprises valve body 1, flap 2, valve seat 16, valve rod 3, valve gap 6, handwheel 14, Sealing and assembling set, and valve body 1 adopts forged steel pieces, improves the heat resisting and pressure resisting performance.Go out structure under valve body 1 employing is enterprising, be that inlet passage is positioned at valve seat 16 tops, outlet passage is positioned at valve seat 16 belows, its inlet passage center line forms angle above pipe centerline, the outlet passage center line forms angle below pipe centerline, reduce medium washing away flap 2 and valve seat 16, flap 2 bottoms adopt two sections different conical surfaces of tapering to form, conical surface 15 has the tapering that cooperatively interacts with valve seat 16 conical surfaces under it, closes in the closed procedures, along with reducing of circulation area at flap 2, velocity of medium strengthens, foreign material on automatic flush valve lobe 2 and valve seat 16 sealing surfaces reduce the wearing and tearing of sealing surface, improve sealability and product working life.Valve gap 6 adopts and lengthens cylindrical structural, is fitted in valve body 1 lumen by gland 7 sealings, and gland 7 middle parts are provided with radiating fin 5, reduce the temperature of stuffing box packing 9, improve sealability.
The fitted seal conical surface of flap 2 and valve seat 16 is formed by hard alloy overlay welding respectively, improves the wear-resisting property of sealing pair.
Gland 7 cooperates with valve body 1 valve gap 6 compressed by screw thread and is installed in valve body 1 lumen, is provided with the metal self-sealing device between valve gap 6 and the valve body 1.Described metal self-sealing device is cooperatively interacted by the outer conical surface in a metal trim ring 4 with internal conical surface and valve gap 6 outsides and forms, and pressure medium makes valve gap 6 and metal trim ring 4 compress selfsealings to the thrust that valve gap 6 makes progress.
Stuffing box packing 9 is installed in the packing cavity between valve gap 6 and the valve rod 3 by bolt by filler pressing 17 and Gland 11.The bolt lower end is connected with gland fitting seat 10 on being fixedly mounted on valve gap 6 by screw thread.A bracket 8 is welded in gland 7 upper ends, and support 13 is installed on the bracket 8 by bolt, and Stem Mut 12 is established at support 13 centers.
Claims (3)
1. ultra supercritical forged steel stop valve, comprise valve body (1), flap (2), valve seat (16), valve rod (3), valve gap (6), handwheel (14), Sealing and assembling set, valve body (1) adopts forged steel pieces, it is characterized in that valve body (1) employing goes out structure under enterprising, its inlet passage center line forms angle above pipe centerline, the outlet passage center line forms angle below pipe centerline, flap (2) bottom adopts two sections different conical surfaces of tapering to form, conical surface (15) has the tapering that cooperatively interacts with valve seat (16) conical surface under it, valve gap (6) adopts and lengthens cylindrical structural, be fitted in valve body (1) lumen by gland (7) sealing, gland (7) middle part is provided with radiating fin (5).
2. ultra supercritical forged steel stop valve according to claim 1 is characterized in that the fitted seal conical surface of flap (2) and valve seat (16) is formed by hard alloy overlay welding respectively.
3. ultra supercritical forged steel stop valve according to claim 1 and 2, it is characterized in that gland (7) cooperates with valve body (1) valve gap (6) compressed by screw thread is installed in valve body (1) lumen, be provided with the metal self-sealing device between valve gap (6) and the valve body (1), described metal self-sealing device is cooperatively interacted by the outer conical surface in a metal trim ring (4) with internal conical surface and valve gap (6) outside and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320102383 CN203146851U (en) | 2013-03-04 | 2013-03-04 | Super supercritical forged-steel stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320102383 CN203146851U (en) | 2013-03-04 | 2013-03-04 | Super supercritical forged-steel stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146851U true CN203146851U (en) | 2013-08-21 |
Family
ID=48974375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320102383 Expired - Lifetime CN203146851U (en) | 2013-03-04 | 2013-03-04 | Super supercritical forged-steel stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146851U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615555A (en) * | 2013-12-17 | 2014-03-05 | 哈尔滨工程大学 | Pneumatic constant flux steam adjusting valve |
| CN103791104A (en) * | 2014-02-18 | 2014-05-14 | 张周卫 | LNG stop valve |
| CN106567954A (en) * | 2016-11-08 | 2017-04-19 | 上海发电设备成套设计研究院 | Split type self-tightening sealing regulating valve cover with cooling fins |
| CN111810648A (en) * | 2020-07-15 | 2020-10-23 | 哈电集团哈尔滨电站阀门有限公司 | Self-cooling fused salt stop valve |
-
2013
- 2013-03-04 CN CN 201320102383 patent/CN203146851U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615555A (en) * | 2013-12-17 | 2014-03-05 | 哈尔滨工程大学 | Pneumatic constant flux steam adjusting valve |
| CN103791104A (en) * | 2014-02-18 | 2014-05-14 | 张周卫 | LNG stop valve |
| CN106567954A (en) * | 2016-11-08 | 2017-04-19 | 上海发电设备成套设计研究院 | Split type self-tightening sealing regulating valve cover with cooling fins |
| CN106567954B (en) * | 2016-11-08 | 2019-09-20 | 上海发电设备成套设计研究院有限责任公司 | A kind of flange-cooled split type self-tightening sealing regulating valve valve deck |
| CN111810648A (en) * | 2020-07-15 | 2020-10-23 | 哈电集团哈尔滨电站阀门有限公司 | Self-cooling fused salt stop valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203146851U (en) | Super supercritical forged-steel stop valve | |
| CN102734486A (en) | Valve assembly sealing device of low temperature ball valve | |
| CN201259012Y (en) | Automatic seal stop valve | |
| CN207093807U (en) | A kind of novel manual flat gate valve | |
| CN103672009A (en) | Forged high-differential-pressure noise-reduction V-shaped regulating ball valve | |
| CN204477357U (en) | Smithwelding is from pressure-relief type gate valve | |
| CN103398201B (en) | Y shape valve body screw thread connects high temperature and high pressure cut-off valve | |
| CN203189750U (en) | Washing-resisting universal sealing strop valve | |
| CN205190883U (en) | High pressure plate valve | |
| CN202510724U (en) | Stop valve for corrugated valve | |
| CN202561087U (en) | High-intensity gate valve | |
| CN202510738U (en) | Bellows gate valve | |
| CN104373606A (en) | Elastic stop valve and operation method thereof | |
| CN201731162U (en) | Blow off valve of corrugated pipe | |
| CN204344939U (en) | A kind of high-pressure stop valve | |
| CN202708142U (en) | Hard-sealing gate vale | |
| CN206958286U (en) | A kind of plugging holes Wedge Gate Valves | |
| CN203131074U (en) | Wedge gate valve | |
| CN102913632B (en) | A kind of valve body and valve seat double-body bike balanced valve | |
| CN201723746U (en) | High-temperature and high-pressure stop valve of T-type power station | |
| CN205479402U8 (en) | A kind of high life high-pressure stop valve | |
| CN203348564U (en) | Large-diameter double-valve-flap pressure relief throttling valve | |
| CN201502730U (en) | Cock-type mud valve | |
| CN206958329U (en) | The high-pressure stop check-valves that a kind of Y-valve bar is oriented to | |
| CN101672376B (en) | Plug cock type mud valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |