CN203082228U - High temperature-resistant and corrosion-resistant sealing structure of stop valve - Google Patents
High temperature-resistant and corrosion-resistant sealing structure of stop valve Download PDFInfo
- Publication number
- CN203082228U CN203082228U CN 201320072911 CN201320072911U CN203082228U CN 203082228 U CN203082228 U CN 203082228U CN 201320072911 CN201320072911 CN 201320072911 CN 201320072911 U CN201320072911 U CN 201320072911U CN 203082228 U CN203082228 U CN 203082228U
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- resistant
- valve
- corrosion
- sealing surface
- high temperature
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Abstract
The utility model discloses a high temperature-resistant and corrosion-resistant sealing structure of a stop valve. The structure is arranged between a valve clack and a valve seat of the stop valve; the valve clack is connected at the lower end of a valve rod; the valve seat is embedded in the valve body; a convex spherical sealing surface of the valve clack is in close fit with a concave spherical sealing surface of the valve seat so as to form a spherical sealing surface seal; a corrosion-resistant composite layer is arranged on the convex spherical sealing surface of the valve clack; and an alloy metal layer is arranged on the concave spherical sealing surface of the valve seat. With a reasonable sealing structure, the structure disclosed by the utility model is resistant to corrosion and high temperature and is particularly applicable to a stop valve for conveying a high-temperature corrosive medium.
Description
Technical field
The utility model relates to a kind of stop valve sealing configuration that is used for.
Background technique
The open-shut device of existing stop valve is the flap of stopper, and sealing surface is the plane or the conical surface, and sealing surface is identical with valve body material.This stop valve good airproof performance, friction is little between sealing surface, therefore, is widely used in the various industrial pipe networks in ground.But the sealing configuration of existing stop valve is in the pipeline that is applied to the high temperature corrosion medium time, and the high temperature corrosion medium can corrode sealing surface, makes to produce stop valve sealing variation and leak, and influences the normal use of stop valve.
Summary of the invention
The utility model proposes high temperature resistant, the corrosion-resistant sealing configuration of a kind of high temperature resistant, corrosion resistant stop valve at the deficiencies in the prior art.
The utility model is achieved through the following technical solutions technical goal.
Stop valve is high temperature resistant, corrosion-resistant sealing configuration, and it is arranged between stop valve flap, the valve seat; Described flap is connected on the lower end of valve rod, and valve seat is inlaid in the valve body; Its improvements are: spherical sealing surface of described flap convex and the spherical sealing surface of valve seat spill closely cooperate, and form spherical sealing surface sealing; The spherical sealing surface of described flap convex is provided with corrosion-resistant composite bed; The spherical sealing surface of described valve seat spill is provided with the alloying metal layer.
Further improve as the utility model, described corrosion-resistant composite bed is the teflon composite bed.
Further improve as the utility model, described alloying metal layer is the hard alloy metal layer.
The utility model compared with prior art has following good effect:
1, adopt spherical sealing surface sealing, sealing area is big, good sealing effect.
2, the spherical sealing surface of flap convex is provided with corrosion-resistant composite bed, and the spherical sealing surface of valve seat spill is provided with the alloying metal layer, makes sealing configuration not only corrosion-resistant, and high temperature resistant, and medium temperature can reach 600 ℃.
3, the spherical sealing surface of valve seat spill is provided with the hard alloy metal layer, significantly improves the wear resistance of sealing surface of seat.
Description of drawings
Fig. 1 is the utility model concrete structure schematic representation.
Fig. 2 is an I part partial enlarged drawing among Fig. 1.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments below.
Stop valve shown in the accompanying drawing is high temperature resistant, corrosion-resistant sealing configuration, and it is arranged between stop valve flap 3, the valve seat 2; Flap 3 is connected the lower end of valve rod 4, and valve seat 2 is inlaid in the valve body 1; Spherical sealing surface of flap 3 convexs and the spherical sealing surface of valve seat 2 spills closely cooperate, and form spherical sealing surface sealing; The spherical sealing surface of flap 3 convexs is provided with corrosion-resistant composite bed 6, and in the present embodiment, corrosion-resistant composite bed 6 is the teflon composite bed; The spherical sealing surface of valve seat 2 spills is provided with alloying metal layer 5, and in the present embodiment, alloying metal layer 5 is the hard alloy metal layer, is welded on the valve seat 2.
Claims (3)
1. high temperature resistant, corrosion-resistant sealing configuration of stop valve, it is arranged between stop valve flap (3), the valve seat (2); Described flap (3) is connected the lower end of valve rod (4), and valve seat (2) is inlaid in the valve body (1); It is characterized in that: spherical sealing surface of described flap (3) convex and the spherical sealing surface of valve seat (2) spill closely cooperate, and form spherical sealing surface sealing; The spherical sealing surface of described flap (3) convex is provided with corrosion-resistant composite bed (6); The spherical sealing surface of described valve seat (2) spill is provided with alloying metal layer (5).
2. high temperature resistant, the corrosion-resistant sealing configuration of stop valve according to claim 1 is characterized in that: described corrosion-resistant composite bed (6) is the teflon composite bed.
3. high temperature resistant, the corrosion-resistant sealing configuration of stop valve according to claim 1 and 2 is characterized in that: described alloying metal layer (5) is the hard alloy metal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072911 CN203082228U (en) | 2013-02-16 | 2013-02-16 | High temperature-resistant and corrosion-resistant sealing structure of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072911 CN203082228U (en) | 2013-02-16 | 2013-02-16 | High temperature-resistant and corrosion-resistant sealing structure of stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082228U true CN203082228U (en) | 2013-07-24 |
Family
ID=48828068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320072911 Expired - Fee Related CN203082228U (en) | 2013-02-16 | 2013-02-16 | High temperature-resistant and corrosion-resistant sealing structure of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082228U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641418A (en) * | 2015-11-02 | 2017-05-10 | 江苏中昊船用阀门制造有限公司 | High-temperature-resistant rapid switching-off type stop valve |
| CN107965580A (en) * | 2017-12-11 | 2018-04-27 | 洛阳名力科技开发有限公司 | Shut-off valve |
| CN108050284A (en) * | 2017-12-11 | 2018-05-18 | 洛阳名力科技开发有限公司 | Shut-off valve |
-
2013
- 2013-02-16 CN CN 201320072911 patent/CN203082228U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641418A (en) * | 2015-11-02 | 2017-05-10 | 江苏中昊船用阀门制造有限公司 | High-temperature-resistant rapid switching-off type stop valve |
| CN107965580A (en) * | 2017-12-11 | 2018-04-27 | 洛阳名力科技开发有限公司 | Shut-off valve |
| CN108050284A (en) * | 2017-12-11 | 2018-05-18 | 洛阳名力科技开发有限公司 | Shut-off valve |
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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: 20130724 Termination date: 20170216 |