CN109458491A - A kind of removable valve holder structure of high temperature Double-disc type check valve - Google Patents
A kind of removable valve holder structure of high temperature Double-disc type check valve Download PDFInfo
- Publication number
- CN109458491A CN109458491A CN201811653388.XA CN201811653388A CN109458491A CN 109458491 A CN109458491 A CN 109458491A CN 201811653388 A CN201811653388 A CN 201811653388A CN 109458491 A CN109458491 A CN 109458491A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- conical surface
- high temperature
- disc type
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The present invention relates to a kind of removable valve holder structures of high temperature Double-disc type check valve, it includes high temperature Double-disc type check valve valve body, the valve seat being arranged on the inside of valve body；Valve seat be it is detachable, rearward position is connected through a screw thread, forward position is provided with the conical surface between valve seat and valve body；The first metallic sealing section of front end built-up welding of the conical surface of valve seat；The second metallic sealing section of conical surface front end built-up welding of valve body；Hardness of the hardness of second metallic sealing section less than the first metallic sealing section；It is additionally provided with seal groove between the conical surface of valve seat and the conical surface of valve body, is provided with carbon seal ring in seal groove.A kind of removable valve holder structure of high temperature Double-disc type check valve of the invention, valve seat is detachable, valve seat is connect by screw thread with valve body, and metallic sealing section and flexible graphite sealing ring sealing are provided on the conical surface, metallic sealing section is wear-resisting, and sealing effect is good, structure is simple, sealing surface processes match grinding conveniently, easy to install, and high temperature.
Description
Technical field
The present invention relates to high temperature Double-disc type check valve fields, more particularly to a kind of the detachable of high temperature Double-disc type check valve
Valve seat construction.
Background technique
The monoblock type of traditional high temperature resistant operating condition seals Double-disc type check valve firmly, when there is processing valve body sealing surface, difficulty
It is larger, dedicated tooling and equipment are needed, inefficient, the disadvantages of first-time qualification rate is not high, and match grinding is inconvenient.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of removable valve holder structure of high temperature Double-disc type check valve,
Valve seat is detachable, and valve seat is connect by screw thread with valve body, and metallic sealing section and flexible graphite sealing ring are provided on the conical surface
Sealing, metallic sealing section is wear-resisting, and sealing effect is good, and structure is simple, and sealing surface processes match grinding conveniently, easy to install, and high temperature.
The technical solution adopted by the present invention to solve the technical problems is: a kind of removable valve of high temperature Double-disc type check valve
Holder structure, it includes high temperature Double-disc type check valve valve body, the valve seat being arranged on the inside of valve body；The valve seat is detachable, valve
Rearward position is connected through a screw thread, forward position is provided with the conical surface between seat and valve body；Before the conical surface of the valve seat
Hold the first metallic sealing section of built-up welding；The conical surface front end of the valve body is in the second gold medal of position corresponding with the first metallic sealing section built-up welding
Belong to sealing surface；Hardness of the hardness of second metallic sealing section less than the first metallic sealing section；The conical surface of valve seat and valve body
It is additionally provided with seal groove between the conical surface, is provided with carbon seal ring in the seal groove.
The front end built-up welding STL6 sealing surface of the conical surface of the valve seat；304 stainless steel of front end built-up welding of the conical surface of the valve body
Sealing surface；Difference of hardness is formed, prevents sealing surface from abrading, for improving sealing effect.
It is provided with card slot on the rear inside face of the valve seat, for tightening valve seat.
Prevent valve seat from loosening for installing holding screw with auger shell pit on the card slot.
Beneficial effects of the present invention: a kind of removable valve holder structure of high temperature Double-disc type check valve of the invention, valve seat can
Disassembly, valve seat are connect by screw thread with valve body, and metallic sealing section and flexible graphite sealing ring sealing, gold are provided on the conical surface
Category sealing surface is wear-resisting, and sealing effect is good, and structure is simple, and sealing surface processes match grinding conveniently, easy to install, and high temperature.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the removable valve holder structure of high temperature Double-disc type check valve of embodiment；
Fig. 2 is showing for the partial enlargement at a kind of A of the removable valve holder structure of high temperature Double-disc type check valve of embodiment
It is intended to；
Fig. 3 is a kind of schematic diagram of the valve seat of the removable valve holder structure of high temperature Double-disc type check valve of embodiment.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention is done below in conjunction with drawings and examples and is further retouched in detail
It states, the embodiment is only for explaining the present invention, does not constitute and limits to protection scope of the present invention.
Embodiment
As shown in Figure 1 to Figure 3, a kind of removable valve holder structure of high temperature Double-disc type check valve is present embodiments provided, it
Including high temperature Double-disc type check valve valve body 1, the valve seat 2 being arranged on the inside of valve body；The valve seat 2 is detachable, valve seat 2 and valve
Rearward position is connected through a screw thread, forward position is provided with the conical surface 8 between body 1；The front end of the conical surface 8 of the valve seat 2
The first metallic sealing section of built-up welding 4；8 front end of the conical surface of the valve body 1 is in position built-up welding second corresponding with the first metallic sealing section 4
Metallic sealing section 5；Hardness of the hardness of second metallic sealing section 5 less than the first metallic sealing section 4；The conical surface of valve seat 2 with
It is additionally provided with seal groove between the conical surface of valve body 1, carbon seal ring 3 is provided in the seal groove；The cone of the valve seat 2
The front end built-up welding STL6 sealing surface in face 8；The 304 stainless steel sealing surface of front end built-up welding of the conical surface 8 of the valve body 1；Difference of hardness is formed,
Prevent sealing surface from abrading, for improving sealing effect；It is provided with card slot 6 on the rear inside face of the valve seat 2, for tightening valve
Seat 2；Match auger shell pit on the card slot 6, for installing holding screw, prevents valve seat 2 from loosening.
In a kind of removable valve holder structure of high temperature Double-disc type check valve of the present embodiment, the wear-resisting resistance to height of metallic sealing section
Temperature is constituted and is sealed for the first time；Carbon seal ring high temperature resistant constitutes second and seals, and valve seat is detachable, to realize valve
Valve seat removably requires, and realizes that valve body sealing surface grinding simplifies, while meeting the needs of worst hot case again.
Above-described embodiment should not in any way limit the present invention, all to be obtained by the way of equivalent replacement or equivalency transform
Technical solution fall within the scope of protection of the present invention.
Claims (4)
1. a kind of removable valve holder structure of high temperature Double-disc type check valve, it is characterised in that: it includes high temperature Double-disc type check valve
Valve body, the valve seat being arranged on the inside of valve body；The valve seat be it is detachable, pass through spiral shell in rearward position between valve seat and valve body
Line connection, forward position are provided with the conical surface；The first metallic sealing section of front end built-up welding of the conical surface of the valve seat；The valve body
Conical surface front end is in the second metallic sealing section of position corresponding with the first metallic sealing section built-up welding；Second metallic sealing section it is hard
Spend the hardness less than the first metallic sealing section；Seal groove is additionally provided between the conical surface of valve seat and the conical surface of valve body, it is described close
Carbon seal ring is provided in seal slot.
2. a kind of removable valve holder structure of high temperature Double-disc type check valve according to claim 1, it is characterised in that: described
The front end built-up welding STL6 sealing surface of the conical surface of valve seat；The 304 stainless steel sealing surface of front end built-up welding of the conical surface of the valve body；It is formed hard
It is poor to spend, and prevents sealing surface from abrading, for improving sealing effect.
3. a kind of removable valve holder structure of high temperature Double-disc type check valve according to claim 1, it is characterised in that: described
It is provided with card slot on the rear inside face of valve seat, for tightening valve seat.
4. a kind of removable valve holder structure of high temperature Double-disc type check valve according to claim 3, it is characterised in that: described
Prevent valve seat from loosening for installing holding screw with auger shell pit on card slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811653388.XA CN109458491A (en) | 2018-12-29 | 2018-12-29 | A kind of removable valve holder structure of high temperature Double-disc type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811653388.XA CN109458491A (en) | 2018-12-29 | 2018-12-29 | A kind of removable valve holder structure of high temperature Double-disc type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109458491A true CN109458491A (en) | 2019-03-12 |
Family
ID=65615836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811653388.XA Pending CN109458491A (en) | 2018-12-29 | 2018-12-29 | A kind of removable valve holder structure of high temperature Double-disc type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109458491A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB938984A (en) * | 1959-01-06 | 1963-10-09 | Gummers Ltd | Improvements in fluid control valves |
| JP2005321061A (en) * | 2004-05-11 | 2005-11-17 | Kubota Corp | Valve for high temperature |
| CN202691171U (en) * | 2012-07-12 | 2013-01-23 | 苏州道森阀门有限公司 | High pound level forged steel full-open swing check valve |
| CN202708212U (en) * | 2012-07-02 | 2013-01-30 | 史成军 | Check valve with threaded valve seat |
| CN108105401A (en) * | 2017-12-19 | 2018-06-01 | 樊东升 | A kind of low torque, bi-direction zero-leakage all-metal sealing dish valve |
| CN209294554U (en) * | 2018-12-29 | 2019-08-23 | 苏州道森阀门有限公司 | A kind of removable valve holder structure of high temperature Double-disc type check valve |
-
2018
- 2018-12-29 CN CN201811653388.XA patent/CN109458491A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB938984A (en) * | 1959-01-06 | 1963-10-09 | Gummers Ltd | Improvements in fluid control valves |
| JP2005321061A (en) * | 2004-05-11 | 2005-11-17 | Kubota Corp | Valve for high temperature |
| CN202708212U (en) * | 2012-07-02 | 2013-01-30 | 史成军 | Check valve with threaded valve seat |
| CN202691171U (en) * | 2012-07-12 | 2013-01-23 | 苏州道森阀门有限公司 | High pound level forged steel full-open swing check valve |
| CN108105401A (en) * | 2017-12-19 | 2018-06-01 | 樊东升 | A kind of low torque, bi-direction zero-leakage all-metal sealing dish valve |
| CN209294554U (en) * | 2018-12-29 | 2019-08-23 | 苏州道森阀门有限公司 | A kind of removable valve holder structure of high temperature Double-disc type check valve |
Non-Patent Citations (1)
| Title |
|---|
| 高澍芃: "汽轮机设备检修技术问答", vol. 1, 中国电力出版社, pages: 297 * |
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