CN201827394U - High-temperature and high-pressure metal hard sealing butterfly valve specially used for preparing propylene by synthesis gas - Google Patents
High-temperature and high-pressure metal hard sealing butterfly valve specially used for preparing propylene by synthesis gas Download PDFInfo
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- CN201827394U CN201827394U CN2010205352860U CN201020535286U CN201827394U CN 201827394 U CN201827394 U CN 201827394U CN 2010205352860 U CN2010205352860 U CN 2010205352860U CN 201020535286 U CN201020535286 U CN 201020535286U CN 201827394 U CN201827394 U CN 201827394U
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Abstract
The utility model relates to a high-temperature and high-pressure metal hard sealing butterfly valve specially used for preparing propylene by synthesis gas, which comprises a valve body, a valve rod and a butterfly plate, wherein the valve body is provided with a valve seat; the valve seat and the butterfly plate are provided with sealed curved surfaces which are matched with each other; and mostly, the sealed surface of the valve seat is a positive conical body obligue section, and a sealing ring of the butterfly plate is a metal circular arc curved surface provided with a U-shaped groove structure. The high-temperature and high-pressure metal hard sealing butterfly valve has the advantages of being easy in processing of the sealing ring of the butterfly plate, good in sealing performance, long in service life, light in opening and closing, flexible and the like, and is applicable to the working conditions of high temperature and high pressure for preparing the propylene by the synthesis gas, and the like.
Description
Technical field
The utility model relates to a kind of butterfly valve, particularly about a kind of metallic sealing butterfly valve that is used for high temperature and high pressure condition.
Background technique
Coal-based alkene synthetic gas system propylene is emerging in recent years new energy chemical project, and the project operating mode has characteristics such as High Temperature High Pressure, and to the seal request height of valve.In the prior art, the butterfly valve that is used for High Temperature High Pressure is a lot, as the patent No. is the bidirectional sealed high temperature butterfly valve of ZL96213189.X, the butterfly plate sealing surface has adopted the asymmetric circular arc camber of oblique off-centre, sealing pair static seal position to adopt steel band Expanded graphite wrap style packing ring, metal o-ring has unique sectional shape, and can with taper trim ring looping spring.Can realize having two way sealed, high temperature resistant, high-voltage performance by the elasticity of metal o-ring and the pressure of pipeline internal medium from motive sealing.But, its sealing surface processing difficulties of the butterfly valve of this structure, and when the worst hot case closed condition, it is stuck easily to expand between butterfly plate seal ring and the sealing surface of seat, opens dumb.
Summary of the invention
The purpose of this utility model is the shortcoming that exists at prior art, provide a kind of easy processing, sealing surface be difficult for stuck, open synthetic gas system propylene special-purpose high temperature high-pressure metal hard seal butterfly valve flexibly.
The technical solution of the utility model comprises valve body, valve rod, butterfly plate, and valve body is provided with valve seat, and valve seat and butterfly plate have the sealing curved surface that cooperatively interacts, and mainly is that sealing surface of seat is the right circular cone oblique section, and the butterfly plate seal ring is a round metal arc surface band U-groove bevel structure.
The utility model has the advantages that between valve seat and the butterfly plate is cooperatively interacted by right circular cone oblique section and round metal arc surface forms sealing pair.The pass is tight more more because the sealing surface of right circular cone oblique section has, and can produce bigger seal pressure.Only at switch moment contact sealing surface of seat, the friction stroke ratio of sealing pair relative movement is less for the seal ring of circular arc camber.And the U-groove bevel structure of butterfly plate seal ring increases the elasticity of seal ring, prevents that the high temperature expansion that is sealed and matched under the state of butterfly plate seal ring and sealing surface of seat is stuck.Its butterfly plate seal ring easy processing, good seal performance, long service life opens and closes light, flexible.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Fig. 2 is the partial structurtes enlarged view of sealing pair among the utility model Fig. 1.
Embodiment
Synthetic gas system propylene special-purpose high temperature high-pressure metal hard seal butterfly valve as shown in Figure 1, comprise valve body 1, valve rod 2, butterfly plate 3, valve body 1 is provided with valve seat, valve seat and butterfly plate 3 have the sealing curved surface that cooperatively interacts, sealing surface of seat is the right circular cone oblique section, and butterfly plate seal ring 9 is a round metal arc surface band U-groove bevel structure.This butterfly plate seal ring 9 is installed on the butterfly plate 3 by pressing plate 7, screw 8.Be provided with the radial location device between butterfly plate seal ring 9 and butterfly plate 3, this radial location device is cooperatively interacted by the locating slot on locating bump on the butterfly plate seal ring 9 10 and the butterfly plate 3 and forms, and prevents that butterfly plate seal ring 9 from moving radially.Valve body 1 upper end is connected with a cooling pipe 4 flange seals, is provided with radiating fin 5 on cooling pipe 4, is provided with stuffing box packing between cooling pipe 4 and the valve rod 2, and the sealing filler is press-fited by Gland 6.
Claims (2)
1. synthetic gas system propylene special-purpose high temperature high-pressure metal hard seal butterfly valve, comprise valve body (1), valve rod (2), butterfly plate (3), valve body (1) is provided with valve seat, valve seat and butterfly plate (3) have the sealing curved surface that cooperatively interacts, it is characterized in that sealing surface of seat is the right circular cone oblique section, butterfly plate seal ring (9) is a round metal arc surface band U-groove bevel structure.
2. synthetic gas system propylene special-purpose high temperature high-pressure metal hard seal butterfly valve according to claim 1, it is characterized in that being provided with the radial location device between butterfly plate seal ring (9) and butterfly plate (3), this radial location device is cooperatively interacted by the locating slot on locating bump (10) on the butterfly plate seal ring (9) and the butterfly plate (3) and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205352860U CN201827394U (en) | 2010-09-20 | 2010-09-20 | High-temperature and high-pressure metal hard sealing butterfly valve specially used for preparing propylene by synthesis gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205352860U CN201827394U (en) | 2010-09-20 | 2010-09-20 | High-temperature and high-pressure metal hard sealing butterfly valve specially used for preparing propylene by synthesis gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827394U true CN201827394U (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205352860U Expired - Fee Related CN201827394U (en) | 2010-09-20 | 2010-09-20 | High-temperature and high-pressure metal hard sealing butterfly valve specially used for preparing propylene by synthesis gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827394U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291939A (en) * | 2013-06-21 | 2013-09-11 | 天津富赛克流体控制设备有限公司 | High-pressure ultra-low-temperature type all-metal hard sealing butterfly valve |
| CN103591307A (en) * | 2013-11-18 | 2014-02-19 | 交城县鑫升机械有限公司 | Triple eccentric metal hard sealing butterfly valve |
| CN109519552A (en) * | 2018-12-24 | 2019-03-26 | 天津中阀科技有限公司 | Double eccentric sealing butterfly valve |
| CN110425293A (en) * | 2019-08-20 | 2019-11-08 | 科福龙阀门集团有限公司 | Novel three eccentric two-way hard seal butterfly valve |
| EP3726106A1 (en) * | 2019-04-17 | 2020-10-21 | Peter Skiba Kunststoff GmbH | Shut-off fitting |
-
2010
- 2010-09-20 CN CN2010205352860U patent/CN201827394U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291939A (en) * | 2013-06-21 | 2013-09-11 | 天津富赛克流体控制设备有限公司 | High-pressure ultra-low-temperature type all-metal hard sealing butterfly valve |
| CN103591307A (en) * | 2013-11-18 | 2014-02-19 | 交城县鑫升机械有限公司 | Triple eccentric metal hard sealing butterfly valve |
| CN109519552A (en) * | 2018-12-24 | 2019-03-26 | 天津中阀科技有限公司 | Double eccentric sealing butterfly valve |
| CN109519552B (en) * | 2018-12-24 | 2024-05-03 | 天津中阀科技有限公司 | Double eccentric sealing butterfly valve |
| EP3726106A1 (en) * | 2019-04-17 | 2020-10-21 | Peter Skiba Kunststoff GmbH | Shut-off fitting |
| CN110425293A (en) * | 2019-08-20 | 2019-11-08 | 科福龙阀门集团有限公司 | Novel three eccentric two-way hard seal butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20130920 |