CN103727320A - Metal bellows assembly used for valves, and hybrid welding structure - Google Patents
Metal bellows assembly used for valves, and hybrid welding structure Download PDFInfo
- Publication number
- CN103727320A CN103727320A CN201310602369.5A CN201310602369A CN103727320A CN 103727320 A CN103727320 A CN 103727320A CN 201310602369 A CN201310602369 A CN 201310602369A CN 103727320 A CN103727320 A CN 103727320A
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- CN
- China
- Prior art keywords
- metal bellows
- flange
- connecting ring
- bellows
- welding structure
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- 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.)
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Classifications
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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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
- F16K41/103—Spindle sealings with diaphragm, e.g. shaped as bellows or tube the diaphragm and the closure member being integrated in one member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The invention aims at providing a welding structure of a metal bellows assembly used for valves. The welding structure is composed of a metal bellows, connecting rings, a valve cylinder and a flange, wherein the metal bellows is composed of one to more thin walled tubes, the two ends of the metal bellows are made into cylindrical ports, and the outer diameter of the metal bellows is matched with the hole diameter of the connecting ring. The connecting rings are welded to the valve cylinder and the flange in a matched mode after welding faces are flush with each other and are welded together, and therefore the requirements of the bellows for the thin wall, the multiple layers, the good elasticity, the pressure resistance, the temperature resistance, the anti-fatigue performance and the long service life can be met.
Description
Technical field
The present invention relates to Bellows valve design and manufacture, 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 (two), by metal bellows, connecting ring, spool, flange, formed, it is characterized in that: described metal bellows is comprised of one to multiple layer thin walled tube, port is made at its two ends, mouth end face and central vertical, its external diameter coordinates with the aperture of connecting ring, make face of weld concordant and weld together after, then connecting ring is coordinated respectively to welding with spool and flange.
2, the port internal diameter at described metal bellows two ends is more than or equal to the internal diameter of itself.
When 3, described metal bellows need to be compared with big-length, position increases a support ring therebetween, and support ring external diameter is slightly larger than metal bellows external diameter.
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 guaranteed intensity and the reliability of weld seam, are specially adapted to high temperature, high-pressure bellows valve.
Accompanying drawing explanation
Fig. 1 is the welded structure figure of valve-use metal bellows component;
Fig. 2 is A portion welded structure enlarged view in Fig. 1.
In figure: 1, the weld seam that coordinates of the weld seam 6 between metal bellows 2, connecting ring 3, spool 4, flange 5, metal bellows and connecting ring, connecting ring and flange and spool.
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 (two), by metal bellows (1), connecting ring (2), spool (3), flange (4), formed, it is characterized in that: described metal bellows (1) is comprised of one to multiple layer thin walled tube, port is made at its two ends, mouth end face and central vertical, its external diameter coordinates with the aperture of connecting ring (2), make face of weld concordant and weld together after, then connecting ring (2) is coordinated respectively to welding with spool (3) and flange (4).
2, the port internal diameter at described metal bellows (1) two ends is more than or equal to the internal diameter of itself.
When 3, described metal bellows (1) need to be compared with big-length, position increases a support ring (7) therebetween, and support ring (7) external diameter is slightly larger than metal bellows (1) external diameter.
Claims (3)
1. the welded structure of a valve-use metal bellows component (two), by metal bellows (1), connecting ring (2), spool (3), flange (4), formed, it is characterized in that: described metal bellows (1) is comprised of one to multiple layer thin walled tube, port is made at its two ends, mouth end face and central vertical, its external diameter coordinates with the aperture of connecting ring (2), make face of weld concordant and weld together after, then connecting ring (2) is coordinated respectively to welding with spool (3) and flange (4).
2. according to the welded structure (two) of a kind of valve-use metal bellows component described in claim 1, it is characterized in that: the port internal diameter at described metal bellows (1) two ends is more than or equal to the internal diameter of itself.
3. when metal bellows described in (1) need to be compared with big-length, position increases a support ring (7) therebetween, and support ring (7) external diameter is slightly larger than metal bellows (1) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602369.5A CN103727320A (en) | 2013-11-25 | 2013-11-25 | Metal bellows assembly used for valves, and hybrid welding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602369.5A CN103727320A (en) | 2013-11-25 | 2013-11-25 | Metal bellows assembly used for valves, and hybrid welding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103727320A true CN103727320A (en) | 2014-04-16 |
Family
ID=50451533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310602369.5A Pending CN103727320A (en) | 2013-11-25 | 2013-11-25 | Metal bellows assembly used for valves, and hybrid welding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103727320A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413031A (en) * | 2018-03-23 | 2018-08-17 | 湖北大禹汉光真空电器有限公司 | A kind of sealing technology of bellows |
| CN112658599A (en) * | 2020-11-20 | 2021-04-16 | 西部宝德科技股份有限公司 | Method for manufacturing powder porous metal film filter tube |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1289935A (en) * | 1970-04-20 | 1972-09-20 | ||
| US3787023A (en) * | 1971-08-05 | 1974-01-22 | Nupro Co | Bellows valve |
| GB1501936A (en) * | 1975-06-18 | 1978-02-22 | Pegler Hattersley Ltd | Valves |
| CN101319736A (en) * | 2008-07-11 | 2008-12-10 | 江苏星河集团有限公司 | High temperature high pressure bellows instrument block valve |
| CN203628056U (en) * | 2013-11-25 | 2014-06-04 | 江苏星河阀门有限公司 | Welding structure of metal bellows assembly for valve |
-
2013
- 2013-11-25 CN CN201310602369.5A patent/CN103727320A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1289935A (en) * | 1970-04-20 | 1972-09-20 | ||
| US3787023A (en) * | 1971-08-05 | 1974-01-22 | Nupro Co | Bellows valve |
| GB1501936A (en) * | 1975-06-18 | 1978-02-22 | Pegler Hattersley Ltd | Valves |
| CN101319736A (en) * | 2008-07-11 | 2008-12-10 | 江苏星河集团有限公司 | High temperature high pressure bellows instrument block valve |
| CN203628056U (en) * | 2013-11-25 | 2014-06-04 | 江苏星河阀门有限公司 | Welding structure of metal bellows assembly for valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413031A (en) * | 2018-03-23 | 2018-08-17 | 湖北大禹汉光真空电器有限公司 | A kind of sealing technology of bellows |
| CN112658599A (en) * | 2020-11-20 | 2021-04-16 | 西部宝德科技股份有限公司 | Method for manufacturing powder porous metal film filter tube |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |