CN103776591B - The test unit of cryogenic valve - Google Patents
The test unit of cryogenic valve Download PDFInfo
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- CN103776591B CN103776591B CN201410025585.2A CN201410025585A CN103776591B CN 103776591 B CN103776591 B CN 103776591B CN 201410025585 A CN201410025585 A CN 201410025585A CN 103776591 B CN103776591 B CN 103776591B
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- web joint
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Abstract
The invention discloses a kind of test unit of cryogenic valve, comprise the first sealing back up pad, the second sealing back up pad, the first web joint and the second web joint, outlet stop component and entrance stop component, the first sealing back up pad.During use, first web joint and the second web joint are sleeved on the endpiece periphery of cryogenic valve and inlet end periphery and by exporting stop component and entrance stop component blocks support, first web joint and first seals between back up pad, and the second web joint and second is sealed between back up pad and fixed by securing member.Described first web joint and first seals between back up pad, and the second web joint and second is sealed between back up pad and fixed by securing member.This experimental provision solves the problem that current proving installation is easily revealed, and decreases moment of torsion by shortening stud length, makes the good airproof performance of cryogenic valve and sealing back up pad, and what ensure that cryogenic valve tests normally carries out.
Description
Technical field
The present invention relates to a kind of test unit of cryogenic valve, this cryogenic valve is applied to liquid oxygen, liquid argon, in the pipeline of the cryogenic medias such as liquid nitrogen and liquefied natural gas (LNG) (LNG), cryogenic media gas is played to the effect of Trimmed sums connection.
Background technology
The sealing property of cryogenic valve is one of leading indicator of examination valve mass quality, therefore needs to carry out sealing test to it before dispatching from the factory.The structure for pressure test of Conventional cryogenic valve imports and exports at ball valve to add two pieces of flanges, flange is provided with caulking groove and sealing gasket, inlet end and the endpiece of cryogenic valve to be against in caulking groove and to contact with sealing gasket and seal, by stud, two Flange joint are made bad student's pressure between the inlet end of flange and cryogenic valve and endpiece, realize sealing; Do usual stud so longer, packing washer is difficult to even compression, easily produces leakage.Stud length is longer, and the moment that therefore the easy generation to cryogenic valve is additional, cause decline serviceable life, and sealing effectiveness ensures very much.
Summary of the invention
Technical matters to be solved by this invention is: the test unit providing a kind of cryogenic valve, this experimental provision solves the problem that current proving installation is easily revealed, moment of torsion is decreased by shortening stud length, make the good airproof performance of cryogenic valve and sealing back up pad, what ensure that cryogenic valve tests normally carries out.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of test unit of cryogenic valve, comprise the first sealing back up pad, the second sealing back up pad, also comprise the first web joint and the second web joint, outlet stop component and entrance stop component, first sealing back up pad, the second sealing back up pad are provided with tested media through hole, this tested media through hole is provided with connector; The plate face of the first sealing back up pad is provided with the outlet caulking groove coordinated with the outlet edge of cryogenic valve, in this outlet caulking groove, is provided with O-ring seal; The plate face of the second sealing back up pad is provided with cryogenic valve enter the entrance caulking groove that opening's edge coordinates, be provided with O-ring seal in this entrance caulking groove; Outlet stop component comprises at least two outlet blocks, and entrance stop component comprises at least two entrance blocks, outlet block and entrance block discrete endpiece periphery and the inlet end periphery being fixedly installed in cryogenic valve respectively; Described first web joint comprises outlet trepanning and the outlet block trepanning of the endpiece periphery being set in cryogenic valve, this outlet block trepanning and the position and the equal one_to_one corresponding of number that export block, and this outlet block trepanning is communicated with outlet trepanning; Described second web joint comprises entrance trepanning and the entrance block trepanning of the inlet end periphery being set in cryogenic valve, the position of this entrance block trepanning and entrance block is with the equal one_to_one corresponding of number and be communicated with entrance trepanning, described first web joint is set in the endpiece periphery of cryogenic valve and outlet block misplaces with outlet block trepanning, second web joint is set in the inlet end periphery of cryogenic valve and entrance block and entrance block trepanning misplace, described first web joint and first seals between back up pad, and the second web joint and second is sealed between back up pad and fixed by securing member.
As the preferred scheme of one, the entrance block number that described entrance stop component comprises is three, this block circumference uniform distribution.
As the preferred scheme of one, the outlet block number that described outlet stop component comprises is three, this block circumference uniform distribution.
As the preferred scheme of one, described outlet block and entrance block are block arc and measure-alike.
As the preferred scheme of one, described securing member is bolt fastener.
After have employed technique scheme, effect of the present invention is: by block trepanning alignment stops corresponding on the first web joint and the second web joint when this experimental provision uses, thus endpiece and the inlet end of cryogenic valve can be enclosed within, at rotation first web joint and the second web joint, block is misplaced with outlet block trepanning and entrance block trepanning, like this, first web joint and the first sealing back up pad, spacing between second web joint and the second sealing back up pad just reduces, reduce the length of securing member, reduce the moment of torsion between securing member, avoid producing additional moment between the valve body of cryogenic valve, so just can ensure that entering opening's edge and exporting along being sealed and matched closely with corresponding O-ring seal of cryogenic valve, what ensure that cryogenic valve tests normally carries out, and the size of block size for cryogenic valve is less, does not affect the assembling of cryogenic valve, also just without the need to being removed by block.
The entrance block number comprised due to described entrance stop component is again three, this block circumference uniform distribution.The outlet block number that described outlet stop component comprises is three, this block circumference uniform distribution.Like this, the anchorage force that block produces the first web joint and the second web joint is just more balanced, and ensure that the first web joint and first seals back up pad, the second web joint and second seals the depth of parallelism of back up pad.
Again because described outlet block and entrance block are block arc and measure-alike, therefore, the first web joint can be identical with the size of the second web joint, thus conveniently install, also reusable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structure cut-open view of the embodiment of the present invention;
Fig. 2 is the side schematic view after suit first web joint;
In accompanying drawing: 1. the first sealing back up pad; 2. export block; 3. the first web joint; 4. the second sealing back up pad; 5. entrance block trepanning; 6. the second web joint; 7. bolt; 8. connector; 9. O-ring seal; 10. export caulking groove; 11. cryogenic valves; 12. outlet block trepannings; 13. entrance caulking grooves.
Embodiment
Below by specific embodiment, the present invention is described in further detail.
As shown in Figure 1, 2, a kind of test unit of cryogenic valve 11, comprise the first sealing back up pad 1, second and seal back up pad 4, also comprise the first web joint 3 and the second web joint 6, outlet stop component and entrance block cover aperture member, first sealing back up pad 1, second seals back up pad 4 and selects ring flange, it is provided with tested media through hole, this tested media through hole is provided with connector 8, and tested media through hole is communicated with the inner chamber of cryogenic valve 11; The plate face of the first sealing back up pad 1 is provided with the outlet caulking groove 13 coordinated with the outlet edge of cryogenic valve 11, in this outlet caulking groove 10, is provided with O-ring seal 9; The plate face of the second sealing back up pad 4 is provided with cryogenic valve 11 enter the entrance caulking groove 13 that opening's edge coordinates, be provided with O-ring seal 9 in this entrance caulking groove 13; Outlet stop component comprises at least two outlet blocks 2, and entrance stop component comprises at least two entrance blocks, and in the present embodiment, the entrance block cover number of perforations that described entrance block cover aperture member comprises is three, this block circumference uniform distribution.Outlet block 2 number that described outlet stop component comprises is three, this block circumference uniform distribution.Described outlet block 2 and entrance block trepanning are block arc and measure-alike.
Outlet block 2 and entrance block trepanning discrete endpiece periphery and the inlet end periphery being fixedly installed in cryogenic valve 11 respectively, described first web joint 3 comprises outlet trepanning and the outlet block trepanning 12 of the endpiece periphery being set in cryogenic valve 11, this outlet block trepanning 12 and the position and the equal one_to_one corresponding of number that export block 2, and this outlet block trepanning 12 is communicated with outlet trepanning, described second web joint 6 comprises entrance trepanning and the entrance block trepanning trepanning of the inlet end periphery being set in cryogenic valve 11, the position of this entrance block trepanning trepanning and entrance block trepanning is with the equal one_to_one corresponding of number and be communicated with entrance trepanning, described first web joint 3 is set in the endpiece periphery of cryogenic valve 11 and outlet block 2 misplaces with outlet block trepanning 12, second web joint 6 is set in the inlet end periphery of cryogenic valve 11 and entrance block trepanning and entrance block trepanning trepanning misplace, described first web joint 3 and first seals between back up pad 1, second web joint 6 and second seals between back up pad 4 to be fixed by securing member, described securing member is bolt 7 securing member.
Principle of work of the present invention is: first by the endpiece periphery and the inlet end periphery that export block 2, entrance block trepanning is welded on cryogenic valve 11; Then after being aimed at outlet block 2 by the outlet block trepanning 12 of the first web joint 3, the first web joint 3 can be enclosed within the endpiece periphery of cryogenic valve 11; Then rotating the first web joint 3 makes outlet block trepanning 12 misplace with outlet block 2, and such first web joint 3 is just blocked support by outlet block 2; Second web joint 6 is arranged on the inlet end periphery of cryogenic valve 11 in the same way; Then cryogenic valve 11 outlet edge and enter opening's edge and embed in outlet caulking groove 10 in the first sealing back up pad 1 and the second sealing back up pad 4 and entrance caulking groove 13 and coordinate with corresponding O-ring seal 9, then by the first web joint 3 and the first sealing back up pad 1, bolt 7 and fastening nuts between second web joint 6 and the second sealing back up pad 4, the number of its bolt 7 is preferably four.Like this, it is less that the first web joint 3 and first seals spacing between back up pad 1, bolt 7 contraction in length, and the depth of parallelism is guaranteed, and then can reduce the moment to cryogenic valve 11 valve body, ensures sealing.
Claims (5)
1. the test unit of a cryogenic valve, comprise the first sealing back up pad, the second sealing back up pad, it is characterized in that: also comprise the first web joint and the second web joint, outlet stop component and entrance stop component, first sealing back up pad, the second sealing back up pad are provided with tested media through hole, this tested media through hole is provided with connector; The plate face of the first sealing back up pad is provided with the outlet caulking groove coordinated with the outlet edge of cryogenic valve, in this outlet caulking groove, is provided with O-ring seal; The plate face of the second sealing back up pad is provided with cryogenic valve enter the entrance caulking groove that opening's edge coordinates, be provided with O-ring seal in this entrance caulking groove; Outlet stop component comprises at least two outlet blocks, and entrance stop component comprises at least two entrance blocks, outlet block and entrance block discrete endpiece periphery and the inlet end periphery being fixedly installed in cryogenic valve respectively; Described first web joint comprises outlet trepanning and the outlet block trepanning of the endpiece periphery being set in cryogenic valve, this outlet block trepanning and the position and the equal one_to_one corresponding of number that export block, and this outlet block trepanning is communicated with outlet trepanning; Described second web joint comprises entrance trepanning and the entrance block trepanning of the inlet end periphery being set in cryogenic valve, the position of this entrance block trepanning and entrance block is with the equal one_to_one corresponding of number and be communicated with entrance trepanning, described first web joint is set in the endpiece periphery of cryogenic valve and outlet block misplaces with outlet block trepanning, second web joint is set in the inlet end periphery of cryogenic valve and entrance block and entrance block trepanning misplace, described first web joint and first seals between back up pad, and the second web joint and second is sealed between back up pad and fixed by securing member.
2. the test unit of a kind of cryogenic valve as claimed in claim 1, is characterized in that: the entrance block number that described entrance stop component comprises is three, this block circumference uniform distribution.
3. the test unit of a kind of cryogenic valve as claimed in claim 2, is characterized in that: the outlet block number that described outlet stop component comprises is three, this block circumference uniform distribution.
4. the test unit of a kind of cryogenic valve as claimed in claim 3, is characterized in that: described outlet block and entrance block are block arc and measure-alike.
5. the test unit of a kind of cryogenic valve as claimed in claim 4, is characterized in that: described securing member is bolt fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025585.2A CN103776591B (en) | 2014-01-21 | 2014-01-21 | The test unit of cryogenic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025585.2A CN103776591B (en) | 2014-01-21 | 2014-01-21 | The test unit of cryogenic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103776591A CN103776591A (en) | 2014-05-07 |
| CN103776591B true CN103776591B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410025585.2A Active CN103776591B (en) | 2014-01-21 | 2014-01-21 | The test unit of cryogenic valve |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568318A (en) * | 2014-12-26 | 2015-04-29 | 圣博莱阀门有限公司 | Low-temperature valve welding end detection device |
| CN109490062B (en) * | 2018-11-05 | 2021-02-23 | 成都成高阀门有限公司 | Application method of pressure test sealing tool for valve weld opening end |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100024133A (en) * | 2008-08-25 | 2010-03-05 | 현대중공업 주식회사 | Blind flange and apparatus for leakage check of water in submersible vehicle using the same |
| CN202521154U (en) * | 2012-04-09 | 2012-11-07 | 中国十七冶集团有限公司 | Baffle for pipeline water/gas pressure testing |
| CN202547870U (en) * | 2012-04-10 | 2012-11-21 | 江苏金石阀业有限公司 | Valve pressure test clamp |
| CN103090153A (en) * | 2011-10-28 | 2013-05-08 | 张旭久 | Compensative pipeline repair device |
| CN203719831U (en) * | 2014-01-21 | 2014-07-16 | 张家港富瑞特种装备股份有限公司 | Low-temperature valve testing device |
| CN204439334U (en) * | 2015-01-30 | 2015-07-01 | 江苏同天机械有限公司 | A kind of welded type adds long pipe ball valve structure for pressure test |
-
2014
- 2014-01-21 CN CN201410025585.2A patent/CN103776591B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100024133A (en) * | 2008-08-25 | 2010-03-05 | 현대중공업 주식회사 | Blind flange and apparatus for leakage check of water in submersible vehicle using the same |
| CN103090153A (en) * | 2011-10-28 | 2013-05-08 | 张旭久 | Compensative pipeline repair device |
| CN202521154U (en) * | 2012-04-09 | 2012-11-07 | 中国十七冶集团有限公司 | Baffle for pipeline water/gas pressure testing |
| CN202547870U (en) * | 2012-04-10 | 2012-11-21 | 江苏金石阀业有限公司 | Valve pressure test clamp |
| CN203719831U (en) * | 2014-01-21 | 2014-07-16 | 张家港富瑞特种装备股份有限公司 | Low-temperature valve testing device |
| CN204439334U (en) * | 2015-01-30 | 2015-07-01 | 江苏同天机械有限公司 | A kind of welded type adds long pipe ball valve structure for pressure test |
Non-Patent Citations (1)
| Title |
|---|
| 《低温阀门的结构设计及管道连接》;范光荣;《深冷技术》;19810831(第4期);第14－16页 * |
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| CN103776591A (en) | 2014-05-07 |
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