CN203627833U - Welding structure of metal bellows assembly for valve - Google Patents
Welding structure of metal bellows assembly for valve Download PDFInfo
- Publication number
- CN203627833U CN203627833U CN201320743452.XU CN201320743452U CN203627833U CN 203627833 U CN203627833 U CN 203627833U CN 201320743452 U CN201320743452 U CN 201320743452U CN 203627833 U CN203627833 U CN 203627833U
- Authority
- CN
- China
- Prior art keywords
- metal bellows
- flange
- valve
- spool
- outer diameter
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 35
- 238000003466 welding Methods 0.000 title claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
- 239000002365 multiple layer Substances 0.000 claims description 3
- 239000002360 explosive Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Diaphragms And Bellows (AREA)
Abstract
The utility model aims to provide a welding structure of a metal bellows assembly for a valve. The welding structure is composed of a metal bellows, a valve element and a flange. The two ends of the metal bellows are made into a cylindrical opening shape, wherein the end face of each opening inclines outwards at the angle of about 30 degrees, and the inner diameter of each opening is matched with the valve element and the flange. A welding step groove of the valve element and the flange is about 30 degrees, and a weld joint is formed by the welding step groove and each end opening of the metal bellows at the angle of about 60 degrees. As a result, the requirements that the metal bellows has a thin wall and multiple layers, and is excellent in elasticity, resistant to pressure, temperature and fatigue and long in service life are met.
Description
Technical field
The utility model relates to Bellows valve design and manufactures, be widely used in the higher pipeline of seal request, particularly poisonous, be harmful to, have keying and control gear in radioactivity and inflammable and explosive liquid or gas medium pipeline.
Background technique
The valve mechanism of extensive use is all realized anti-external leakage sealing by upper filler, because filler is rubbed, vibrations, the impact of the factor such as pressure and environment, in structure, exist the possibility of leakage, and it is poisonous, inflammable, explosive, there is radioactivity etc. to safety, environment and the healthy medium working the mischief have not allowed to leak outside, Bellows valve is exactly a kind of very safe and reliable product, wherein bellows is kernel component crucial in this product, owing to being subject to the impact of different pressures and temperature, particularly high temperature, in the situation of high pressure, bellows thin-walled, multilayer and whippy characteristic are most important to its welded structure.
Summary of the invention
The object of the present invention is to provide a kind of welded structure of valve-use metal bellows component, to meet bellows thin-walled, multilayer, elasticity excellence, withstand voltage, heatproof, antifatigue, long requirement of life-span.
Solving the technological scheme that above technical problem takes is:
1, a kind of welded structure of valve-use metal bellows component, formed by metal bellows, spool, flange, it is characterized in that: metal bellows determines according to pressure, temperature, flow that respectively the technical parameters such as the number of plies, stroke, wall thickness, length, the pitch of waves, wave number and inner and outer diameter design, by one deck to multiple-layer stacked, the metal tube of every layer of wall thickness 0.08mm to 0.25mm is made through mold pressing, its two ends respectively with spool, flange welding.
2, the uncovered shape of cylinder is made at the two ends of described metal bellows, mouth left and right, 30 °, outside oblique angle of end face, its internal diameter coordinates with spool and flange respectively, and fit dimension d is less than or equal to the outer diameter D 1-2b of bellows, and the welding step outer diameter D 2 of spool and flange is more than or equal to D1-2b.
3, the welding step groove of described spool and flange is 30 ° of left and right, with the weld seam of 60 ° of left and right of wavy metal tube opening formation.
Advantage of the present invention and beneficial effect are:
1, valve in use metal bellows to draw high compression movement consistent with pressurized direction, the no matter inside and outside pressurized of metal bellows, the influence power of butt welded seam is less.
2, withstand voltage, the heatproof of weld seam and endurance life are greater than the intensity of metal bellows, have ensured the reliability of weld seam, are specially adapted to high temperature, high-pressure bellows valve.
Brief description of the drawings
Fig. 1 is valve-use metal bellows component welded structure figure;
Fig. 2 is A portion welding line structure enlarged view in Fig. 1.
In figure: 1, spool 2, flange 3, metal bellows 4, weld seam D1, outside diameter of bel D2, welding step outside diameter d, cooperation external diameter b, multiply bellows total thickness
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
1, a kind of welded structure of valve-use metal bellows component, formed by metal bellows (3), spool (1), flange (2), it is characterized in that: metal bellows (3) determines according to pressure, temperature, flow that respectively the technical parameters such as the number of plies, stroke, wall thickness, length, the pitch of waves, wave number and inner and outer diameter design, by one deck to multiple-layer stacked, the metal tube of every layer of wall thickness 0.08mm to 0.25mm is made through mold pressing, and weld with spool (1), flange (2) respectively at its two ends.
2, the uncovered shape of cylinder is made at the two ends of described metal bellows (3), mouth left and right, 30 °, outside oblique angle of end face, its internal diameter coordinates with spool (1) and flange (2) respectively, fit dimension (d) is less than or equal to the outer diameter D 1-2b of metal bellows (3), and the welding outer diameter of step (D2) of spool (1) and flange (2) is more than or equal to D1-2b.
3, the welding step groove of described spool (1) and flange (2) is 30 ° of left and right, with the weld seam of 60 ° of left and right of metal bellows (3) port formation.
Claims (3)
1. the welded structure of a valve-use metal bellows component, formed by metal bellows (3), spool (1), flange (2), it is characterized in that: metal bellows (3) determines according to pressure, temperature, flow that respectively the technical parameters such as the number of plies, stroke, wall thickness, length, the pitch of waves, wave number and inner and outer diameter design, by one deck to multiple-layer stacked, the metal tube of every layer of wall thickness 0.08mm to 0.25mm is made through mold pressing, and weld with spool (1), flange (2) respectively at its two ends.
2. according to the welded structure of a kind of valve-use metal bellows component described in claim 1, it is characterized in that: the uncovered shape of cylinder is made at the two ends of metal bellows (3), mouth left and right, 30 °, outside oblique angle of end face, its internal diameter coordinates with spool (1) and flange (2) respectively, fit dimension (d) is less than or equal to the outer diameter D 1-2b of metal bellows (3), and the welding outer diameter of step (D2) of spool (1) and flange (2) is more than or equal to D1-2b.
3. according to the welded structure of a kind of valve-use metal bellows component described in claim 2, it is characterized in that: the welding step groove of described spool (1) and flange (2) is 30 ° of left and right, with the weld seam of 60 ° of left and right of metal bellows (3) port formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743452.XU CN203627833U (en) | 2013-11-23 | 2013-11-23 | Welding structure of metal bellows assembly for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743452.XU CN203627833U (en) | 2013-11-23 | 2013-11-23 | Welding structure of metal bellows assembly for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627833U true CN203627833U (en) | 2014-06-04 |
Family
ID=50814314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320743452.XU Expired - Lifetime CN203627833U (en) | 2013-11-23 | 2013-11-23 | Welding structure of metal bellows assembly for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627833U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867733A (en) * | 2013-11-23 | 2014-06-18 | 江苏星河阀门有限公司 | Welding structure of metal corrugated pipe component for valve |
| CN106838454A (en) * | 2017-03-28 | 2017-06-13 | 江苏星河阀门有限公司 | High temperature high pressure valve bellows and its component |
-
2013
- 2013-11-23 CN CN201320743452.XU patent/CN203627833U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867733A (en) * | 2013-11-23 | 2014-06-18 | 江苏星河阀门有限公司 | Welding structure of metal corrugated pipe component for valve |
| CN106838454A (en) * | 2017-03-28 | 2017-06-13 | 江苏星河阀门有限公司 | High temperature high pressure valve bellows and its component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |