CN202118277U - Double-action isolating valve - Google Patents
Double-action isolating valve Download PDFInfo
- Publication number
- CN202118277U CN202118277U CN2011202329636U CN201120232963U CN202118277U CN 202118277 U CN202118277 U CN 202118277U CN 2011202329636 U CN2011202329636 U CN 2011202329636U CN 201120232963 U CN201120232963 U CN 201120232963U CN 202118277 U CN202118277 U CN 202118277U
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- CN
- China
- Prior art keywords
- ring
- valve
- seal ring
- metal ring
- seal
- 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 - Fee Related
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Abstract
The utility model provides a double-action isolating valve, which comprises a valve body, a valve seat, a seal ring, a disc, a press plate, an upper valve shaft and a lower valve shaft. The valve seat is arranged in the valve body in a surfacing welding manner, the seal ring is fixed onto the disc via the press plate, the seal ring and the valve seat form a seal set, the disc is fixed in the valve body via the upper valve shaft and the lower valve shaft, the seal ring is a metal spring seal ring provided with an outer ring with an opening, a main metal ring and an auxiliary metal ring are mounted in the outer ring, a supporting spring I is mounted in the main metal ring, and a supporting spring II is mounted in the auxiliary metal ring. Besides, the outer ring of the seal ring is made of copper, and both the main metal ring and the auxiliary metal ring are made of stainless steel. The double-action isolating valve has the advantages that the seal ring is in the structure with the main metal ring and the auxiliary metal ring, and the supporting springs mounted in the main metal ring and the auxiliary metal ring have excellent elasticity and rigidity and are capable of compensating abrasion of the seal ring, thereby the double-action isolating valve is fine in bidirectional sealing effect and long in service life.
Description
Technical field
The utility model relates to a kind of valving, particularly relates to a kind of double-acting separating valve of the back translation of rotation earlier.
Background technique
The isolation butterfly valve that on metallurgical, nuclear power field gas pipeline, uses at present also has and adopts the metal elastic-sealed structure of double-acting.During valve opening, the motion of butterfly plate can be decomposed into two continuous stages, and the phase I, valve shaft drive butterfly plate revolves and turn 90 degrees, but the seal ring on the butterfly plate does not contact with valve seat; Second stage, valve shaft continues rotation, and butterfly plate is swung around the hole that is positioned at lower valve shaft and butterfly plate below, makes that the seal ring on the butterfly plate is pressed to valve seat, reaches sealing effect.Its seal ring mostly adopts L shaped metal o-ring or metallic O ring, relies on the resiliently deformable of metal o-ring to realize sealing function, but ring wear post-compensation weak effect; Working life is short; And generally can only bear positive pressure, the reverse pressure-bearing ability is oppositely held to requiring in case system's medium has; Then be prone to cause the leakage of valve, influence environment and personnel's safety.
Summary of the invention
Short working life in order to overcome existing double-acting separating valve seal ring, and can only bear positive pressure, the deficiency of reverse pressure-bearing ability, the utility model provides a kind of double-acting separating valve.
It is a kind of double-acting separating valve that the utility model solves the technological scheme that its technical problem adopted, and comprises valve body, valve seat, seal ring, butterfly plate, pressing plate, goes up valve shaft, lower valve shaft, and the valve seat built-up welding is in valve body; Seal ring is fixed on the butterfly plate through pressing plate; Seal ring and valve seat form sealing pair, and butterfly plate is fixed in the valve body through last valve shaft, lower valve shaft, and seal ring is the spring metal seal ring; The spring metal seal ring has the outer ring of opening; Main metal ring and secondary metal ring are housed in the outer ring, support spring I is housed in the main metal ring, support spring II is housed in the secondary metal ring.
The outer ring material of seal ring is a copper, and the material of main metal ring and secondary metal ring is a stainless steel.
The beneficial effect of the utility model is that seal ring adopts major and minor metallic seal ring structure, and in the major and minor seal ring support spring is housed, and has better elastic and rigidity, the wearing and tearing of ability compensation sealing circle, and two way sealed is effective, long service life.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the tectonic maps of present embodiment
Fig. 2 is the enlarged view of seal ring among Fig. 1
Among the figure: 1. go up valve shaft; 2. valve body; 3. valve seat; 4. seal ring; 5. pressing plate; 6. butterfly plate; 7. lower valve shaft; 8. outer ring; 9. main metal ring; 10. support spring I; 11. secondary metal ring; 12. support spring II.
Embodiment
As illustrated in fig. 1 and 2, a kind of double-acting separating valve comprises valve body 2, valve seat 3, seal ring 4, butterfly plate 6, pressing plate 5, goes up valve shaft 1, lower valve shaft 7; Valve seat 3 built-up welding are in valve body 2, and seal ring 4 is fixed on the butterfly plate 6 through pressing plate 5, and seal ring 4 forms sealing pair with valve seat 3; Butterfly plate 6 is fixed in the valve body 2 through last valve shaft 1, lower valve shaft 7; Its seal ring 4 is the spring metal seal ring, and the spring metal seal ring has the outer ring 8 of opening, and main metal ring 9 and secondary metal ring 11 are housed in the outer ring 8; In the main metal ring 9 support spring I 10 is housed, in the secondary metal ring 11 support spring II 12 is housed.Outer ring 8 materials of seal ring 4 are copper, and main metal ring 9 is a stainless steel with the material of secondary metal ring 11.
In use, through the elastic deformation level that the screw on the pressing plate 5 is regulated main metal ring 9 and secondary metal ring 11, realize the two way sealed function of valve.Main metal ring 9 has guaranteed the sealing between seal ring 4 and the valve seat 3, and secondary metal ring 11 has guaranteed the sealing between seal ring 4 and the butterfly plate 6.Outer ring 8 materials are copper, have guaranteed the elasticity of seal ring 4, and main metal ring 9 is a stainless steel with the material of secondary metal ring 11, has guaranteed the rigidity of seal ring 4, good sealing effect.
Claims (2)
1. a double-acting separating valve comprises valve body, valve seat, seal ring, butterfly plate, pressing plate, goes up valve shaft, lower valve shaft, and the valve seat built-up welding is in valve body; Seal ring is fixed on the butterfly plate through pressing plate; Seal ring and valve seat form sealing pair, and butterfly plate is fixed in the valve body through last valve shaft, lower valve shaft, it is characterized in that: described seal ring is the spring metal seal ring; The spring metal seal ring has the outer ring of opening; Main metal ring and secondary metal ring are housed in the outer ring, support spring I is housed in the main metal ring, support spring II is housed in the secondary metal ring.
2. double-acting separating valve according to claim 1 is characterized in that: described outer ring material is a copper, and the material of main metal ring and secondary metal ring is a stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202329636U CN202118277U (en) | 2011-06-30 | 2011-06-30 | Double-action isolating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202329636U CN202118277U (en) | 2011-06-30 | 2011-06-30 | Double-action isolating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118277U true CN202118277U (en) | 2012-01-18 |
Family
ID=45459344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202329636U Expired - Fee Related CN202118277U (en) | 2011-06-30 | 2011-06-30 | Double-action isolating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118277U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853093A (en) * | 2011-06-30 | 2013-01-02 | 江苏神通阀门股份有限公司 | Double-acting type isolating valve |
| CN108916398A (en) * | 2018-09-20 | 2018-11-30 | 江苏神通阀门股份有限公司 | A kind of double-acting friction-free butterfly valve |
-
2011
- 2011-06-30 CN CN2011202329636U patent/CN202118277U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853093A (en) * | 2011-06-30 | 2013-01-02 | 江苏神通阀门股份有限公司 | Double-acting type isolating valve |
| CN108916398A (en) * | 2018-09-20 | 2018-11-30 | 江苏神通阀门股份有限公司 | A kind of double-acting friction-free butterfly 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 |
Granted publication date: 20120118 Termination date: 20200630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |