CN204405260U - A kind of leakage test pressue device - Google Patents
A kind of leakage test pressue device Download PDFInfo
- Publication number
- CN204405260U CN204405260U CN201520128978.6U CN201520128978U CN204405260U CN 204405260 U CN204405260 U CN 204405260U CN 201520128978 U CN201520128978 U CN 201520128978U CN 204405260 U CN204405260 U CN 204405260U
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- Prior art keywords
- pressue device
- supervisor
- test
- valve
- arm
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 238000003466 welding Methods 0.000 claims abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 14
- 238000007789 sealing Methods 0.000 description 8
- 239000002828 fuel tank Substances 0.000 description 7
- 238000010079 rubber tapping Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a kind of leakage test pressue device, it is characterized in that, described pressue device comprises supervisor, described supervisor is provided with arm, described arm is provided with tensimeter, the upper welding ball valve of described supervisor, the top of described ball valve is provided with valve, the bottom welding screw thread obturating plug of described supervisor.The beneficial effects of the utility model are as follows: 1) whole Technical Design is ingenious, rational in infrastructure, and detachable maintaining is convenient; 2) this technical scheme utilizes this base, is screwed down by pressure relief valve before the test, changes seal test device and tests, change pressure relief valve again after off-test, and whole operating process is simple, and good airproof performance; 3) this technical scheme cost is lower, is convenient to apply on a large scale.
Description
Technical field
The utility model relates to a kind of pressue device, especially relates to a kind of leakage test pressue device, belongs to oil-filled transformer structure member technical field.
Background technology
At present, the hermetically sealed product of oil-filled transformer many employings corrugated tank, after general assembly injection transformer oil, due to tank wall, the welding capacity such as corrugate fin are large, weld seam is many, particularly corrugate fin is the book plate bending being less than 1.5mm and is welded, breakthrough is formed than being easier to, the sealing surface of oil-filled transformer is also more in addition, also easily breakthrough is formed when coordinating bad, this just requires that the completed transformer after to oiling carries out leakage test, generally positive pressure test is carried out according to relevant regulations, after pressurization, product surface is checked, and keep pressure a period of time, again product surface is checked, as ne-leakage point and fuel tank internal still keep under pressure, then stand the test can be judged to be.Substantially, the phenomenon of assembling reason generation leakage of oil because of welding or seal is there is after oil-filled transformer product export after leakage test.This just decreases greatly the after sale service of oil-filled transformer product and returns the expense of repair in shop reason.Therefore, above-mentioned technical matters is solved in the urgent need to a kind of new technical scheme.
Summary of the invention
The utility model is just for the technical matters existed in prior art, and provide a kind of leakage test pressue device, this structural design is compact, ingenious, and the practicality simple to operate of this technical scheme, economy, test findings are accurate.
To achieve these goals, the technical solution adopted in the utility model is, a kind of leakage test pressue device, it is characterized in that, described pressue device comprises supervisor, and described supervisor is provided with arm, described arm is provided with tensimeter, the upper welding ball valve of described supervisor, the top of described ball valve is provided with valve, the bottom welding screw thread obturating plug of described supervisor.
Improve as one of the present utility model, described pressue device comprises O-ring seal, and described O-ring seal is arranged on the bottom of screw thread obturating plug, strengthens its sealing further.
Improve as one of the present utility model, the arm of described pressue device is arranged on supervisor 2/3 height and position, occur during to avoid position too low that transformer oil recoils in tensimeter, the diameter of supervisor coordinates to be beneficial to screw thread obturating plug and is welded to connect, and arm diameter matches with pressure tapping and is beneficial to making interface.
Improve as one of the present utility model, described valve is provided with the anti-skidding chamfering of multiple tracks.The ball valve of described pressue device requires can seal completely when closing, and air tight, the structure of valve is convenient to the insertion of flexible pipe, and makes anti-skidding multiple tracks chamfering on surface, and the sealing surface that screw thread obturating plug contacts with O-ring seal enough reaches seal request.
Relative to prior art, the beneficial effects of the utility model are as follows: 1) whole Technical Design is ingenious, rational in infrastructure, and detachable maintaining is convenient; 2) this technical scheme utilizes this base, is screwed down by pressure relief valve before the test, changes seal test device and tests, change pressure relief valve again after off-test, and whole operating process is simple, and good airproof performance; 3) this technical scheme cost is lower, is convenient to apply on a large scale.
Accompanying drawing explanation
Fig. 1 is the utility model one-piece construction schematic diagram;
In figure: 1. valve, 2. ball valve, 3. tensimeter, 4. arm, be 5. responsible for, 6. screw thread obturating plug, 7. O-ring seal.
Embodiment
In order to deepen understanding and cognition of the present utility model, below in conjunction with accompanying drawing the utility model be further described and introduce.
embodiment 1:see Fig. 1, a kind of leakage test pressue device, described pressue device comprises supervisor 5, described supervisor 5 is provided with arm 4, described arm 4 is provided with tensimeter 3, welding ball valve 2 on described supervisor 5, the top of described ball valve 2 is provided with valve 1, the bottom welding screw thread obturating plug 6 of described supervisor 5.Described pressue device comprises O-ring seal 7, and described O-ring seal is arranged on the bottom of screw thread obturating plug, strengthens its sealing further.The screw thread of the earth pressure release valve seat that screw thread obturating plug and the transformer tank of this pressue device cover matches, do not need the interface that configuration is independent in addition, the diameter of supervisor coordinates to be beneficial to screw thread obturating plug and is welded to connect, arm diameter matches with pressure tapping and is beneficial to making interface, occurs that transformer oil recoils in tensimeter during to avoid position too low.
embodiment 2:see Fig. 1, improve as one of the present utility model, the arm 4 of described pressue device is arranged on 2/3 height and position of supervisor 5, occur during to avoid position too low that transformer oil recoils in tensimeter, the diameter of supervisor coordinates to be beneficial to screw thread obturating plug and is welded to connect, and arm diameter matches with pressure tapping and is beneficial to making interface.All the other structures are identical with embodiment 1 with advantage.
embodiment 3:see Fig. 1, improve as one of the present utility model, described valve 1 is provided with the anti-skidding chamfering of multiple tracks.The ball valve of described pressue device requires can seal completely when closing, and air tight, the structure of valve is convenient to the insertion of flexible pipe, and makes anti-skidding multiple tracks chamfering on surface, and the sealing surface that screw thread obturating plug contacts with O-ring seal enough reaches seal request.All the other structures are identical with embodiment 1 with advantage.
Principle of work: use the process of this pressue device: oil-filled transformer finished product general assembly completed moves on to pilot region, pressure relief valve is laid down with special spanner, in inspection box, oil level should close to case lid, this device being prepared O-ring seal installs on former earth pressure release valve base, screw with special spanner, then pneumatic hose to be received on valve and to have blocked clip, valve can not be leaked gas, now pressure gauge reading is " 0 ", slowly open ball valve again, start to pressurize to fuel tank, observe gauge hand simultaneously, when gauge hand points to the force value of testing requirements, quick closedown ball valve, after closing completely, during the permissible variation scope that the Pass Test of gauge hand indication force value requires, otherwise should adjust (continue pressurization or bleed off portion of air).After pressurization finally completes, start all weld seams and the sealing surface that check transformer, oil seepage phenomena must not be had, pressurize is carried out to the fuel tank after pressurization, dwell time, again check the weld seam of fuel tank and sealing surface at the end of the dwell time, ne-leakage oil phenomenon showed off-test by the relevant regulations of testing requirements, otherwise need carry out repairing etc. suitably process to breakthrough, repeat with Back seal test step.After off-test, open ball valve and bleed off air, tensimeter makes zero, and lays down this device, again loads onto pressure relief valve, complete leakage test work.
During use, device is connected with base oil-filled transformer case lid being laid down pressure relief valve and screws, compressed-air actuated flexible pipe is inserted on valve, logical upward pressure contracting air, then open ball valve, now clean pressurized air can enter fuel tank internal, tensimeter is observed during aerating, close ball valve when pointer arrives testing requirements value, pull out pneumatic hose, reaffirm that pressure gauge reading should meet the requirements.To all surface of transformer, particularly weld seam and sealing surface check, there is no the abnormal rear pressure continuing to keep fuel tank internal, until the dwell time of test determination, again product is checked before the end, open the air that ball valve bleeds off fuel tank internal after not sending out seepage, gauge hand should make zero, device of dismantling, and pressure relief valve of again screwing on, complete test.
At least one in technical characteristic described in embodiment 2,3 and embodiment 1 can also combine by the utility model, form new embodiment.
It should be noted that above-described embodiment, be not used for limiting protection domain of the present utility model, equivalents done on the basis of technique scheme or the alternative scope all falling into the utility model claim and protect.
Claims (4)
1. a leakage test pressue device, is characterized in that, described pressue device comprises supervisor, described supervisor is provided with arm, described arm is provided with tensimeter, the upper welding ball valve of described supervisor, the top of described ball valve is provided with valve, the bottom welding screw thread obturating plug of described supervisor.
2. leakage test pressue device according to claim 1, is characterized in that, described pressue device comprises O-ring seal, and described O-ring seal is arranged on the bottom of screw thread obturating plug.
3. leakage test pressue device according to claim 2, is characterized in that, described arm is arranged on the position of supervisor 2/3 height.
4. leakage test pressue device according to claim 3, is characterized in that, described valve is provided with the anti-skidding chamfering of multiple tracks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520128978.6U CN204405260U (en) | 2015-03-06 | 2015-03-06 | A kind of leakage test pressue device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520128978.6U CN204405260U (en) | 2015-03-06 | 2015-03-06 | A kind of leakage test pressue device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204405260U true CN204405260U (en) | 2015-06-17 |
Family
ID=53429110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520128978.6U Expired - Fee Related CN204405260U (en) | 2015-03-06 | 2015-03-06 | A kind of leakage test pressue device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204405260U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748042A (en) * | 2017-11-30 | 2018-03-02 | 贝兹维仪器(苏州)有限公司 | A kind of positive seal system safety testing device |
| CN107976291A (en) * | 2017-12-15 | 2018-05-01 | 大唐河北发电有限公司马头热电分公司 | A kind of airtight test instrument of generator outlet casing |
| CN109000858A (en) * | 2018-06-20 | 2018-12-14 | 国家电网公司 | The complete detection system of Multifunction transformer |
| CN110044540A (en) * | 2019-05-31 | 2019-07-23 | 中国空气动力研究与发展中心高速空气动力研究所 | The pressurizer of model surface pressure tap and its application in a kind of test of wind tunnel pressure measuring |
-
2015
- 2015-03-06 CN CN201520128978.6U patent/CN204405260U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748042A (en) * | 2017-11-30 | 2018-03-02 | 贝兹维仪器(苏州)有限公司 | A kind of positive seal system safety testing device |
| CN107976291A (en) * | 2017-12-15 | 2018-05-01 | 大唐河北发电有限公司马头热电分公司 | A kind of airtight test instrument of generator outlet casing |
| CN109000858A (en) * | 2018-06-20 | 2018-12-14 | 国家电网公司 | The complete detection system of Multifunction transformer |
| CN110044540A (en) * | 2019-05-31 | 2019-07-23 | 中国空气动力研究与发展中心高速空气动力研究所 | The pressurizer of model surface pressure tap and its application in a kind of test of wind tunnel pressure measuring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 224051 No. 21, glorious road, Ting Lake District, Jiangsu, Yancheng City (18) Patentee after: ZTT TRANSFORMER Co.,Ltd. Address before: 224051 No. 21, glorious road, Ting Lake District, Jiangsu, Yancheng City (18) Patentee before: Jiangsu Boleda Transformer Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 |