CN103364153A - Air pressure leakage check method for transformer oil tank - Google Patents
Air pressure leakage check method for transformer oil tank Download PDFInfo
- Publication number
- CN103364153A CN103364153A CN2013103308819A CN201310330881A CN103364153A CN 103364153 A CN103364153 A CN 103364153A CN 2013103308819 A CN2013103308819 A CN 2013103308819A CN 201310330881 A CN201310330881 A CN 201310330881A CN 103364153 A CN103364153 A CN 103364153A
- Authority
- CN
- China
- Prior art keywords
- oil tank
- leakage
- air pressure
- transformer oil
- sealing
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
- G01M3/14—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/146—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
Abstract
The invention relates to the technical field of leakage check of transformer oil tanks, and specifically relates to an air pressure leakage check method for a transformer oil tank. The method comprises the following steps of: (1) utilizing a flange hole or a screw hole formed in a tank cover to connect an air pressure meter and a breather pipe joint; (2) sealing the whole transformer oil tank, opening an inflation valve and filling oil-free and water-free compressed air in the oil tank till the air pressure reaches 10-15kPa; (3) brushing a leaking stoppage solution on sealing bonding wires from top to bottom when the pressure reached in the step (2) is changed in 8-10min, and making a to-be welded marker with chalk at each checked place where bubbles come out; and (4) if a sealing test shows that no place has leakage, proving that the transformer oil tank is qualified; otherwise, welding and repairing the transformer oil tank after pressure is released. According to the method provided by the invention, the oil tank is filled with compressed air for checking whether the oil tank has a leakage phenomenon. The method has the characteristics of simple technology, simple operation, short testing time and the like, an oil leaking phenomenon is avoided, and the normal and reliable operation of a product is guaranteed.
Description
Technical field
The present invention relates to oil tank of transformer leak test technical field, be specifically related to oil tank of transformer air pressure leakage check method.
Background technology
At present, the fuel tank leakage of oil of oil-immersed power transformer is its manufacturing and operating FAQs.Therefore, before product export, its seepage thin spot all to be got rid of, so that safety, reliability service during the product linked network.But there are the shortcomings such as complex process, complex operation and test period are long in the leak testing process of prior art.
Summary of the invention
The purpose of this invention is to provide the oil tank of transformer air pressure leakage check method that a kind of technique is simple, easy and simple to handle, test period short, can avoid the oil seepage phenomenon occurring, guarantee the normal operation of product.
In order to solve the existing problem of background technology, the present invention is by the following technical solutions: oil tank of transformer air pressure leakage check method may further comprise the steps:
(1), utilize flange hole or screw on the case lid to connect rain glass and connection for breather pipe;
(2), all after sealing, open charging valve and in fuel tank, fill with nothing oil, anhydrous pressurized air to 10～15Kpa;
(3) if the pressure in the described step (two) changes in 8～10min, with brush degree of dipping in leakage brush sealing bonding wire from top to bottom one by one, there is Bubble formation at every brush one place or every inspection one place, make mark to be welded with chalk;
(4) if, that the leakage test ne-leakage is is qualified; If seepage is arranged, then after pressure relief, carry out immediately repair welding.
The present invention has following beneficial effect: oil tank of transformer air pressure leakage check method of the present invention, employing is filled with pressurized air in fuel tank, thereby judge that fuel tank has or not Seepage, have the characteristics such as technique is simple, easy and simple to handle, test period is short, can avoid occurring the oil seepage phenomenon, guarantee the operation of product normal reliable.In addition, mainly to be applicable to electric pressure be that 10KV, capacity are the air pressure leakage check of 1600Kva and following three-phase oil immersion oil tank of transformer in the present invention.
Embodiment
Below the present invention will be further described in detail.
Embodiment one:
Oil tank of transformer air pressure leakage check method may further comprise the steps:
(1), utilize flange hole or screw on the case lid to connect rain glass and connection for breather pipe; Need to prove gas leakage to be arranged herein;
(2), all after sealing, open charging valve and in fuel tank, fill with nothing oil, anhydrous pressurized air to 10Kpa;
(3) if the pressure in the described step (two) changes in 8min, with brush degree of dipping in leakage brush sealing bonding wire from top to bottom one by one, there is Bubble formation at every brush one place or every inspection one place, make mark to be welded with chalk;
(4) if, that the leakage test ne-leakage is is qualified; If seepage is arranged, then after pressure relief, carry out immediately repair welding.
Embodiment two:
Oil tank of transformer air pressure leakage check method may further comprise the steps:
(1), utilize flange hole or screw on the case lid to connect rain glass and connection for breather pipe;
(2), all after sealing, open charging valve and in fuel tank, fill with nothing oil, anhydrous pressurized air to 13Kpa;
(3) if the pressure in the described step (two) changes in 9min, with brush degree of dipping in leakage brush sealing bonding wire from top to bottom one by one, there is Bubble formation at every brush one place or every inspection one place, make mark to be welded with chalk;
(4) if, that the leakage test ne-leakage is is qualified; If seepage is arranged, then after pressure relief, carry out immediately repair welding.
Embodiment three:
Oil tank of transformer air pressure leakage check method may further comprise the steps:
(1), utilize flange hole or screw on the case lid to connect rain glass and connection for breather pipe;
(2), all after sealing, open charging valve and in fuel tank, fill with nothing oil, anhydrous pressurized air to 15Kpa;
(3) if the pressure in the described step (two) changes in 10min, with brush degree of dipping in leakage brush sealing bonding wire from top to bottom one by one, there is Bubble formation at every brush one place or every inspection one place, make mark to be welded with chalk;
(4) if, that the leakage test ne-leakage is is qualified; If seepage is arranged, then after pressure relief, carry out immediately repair welding.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (1)
1. oil tank of transformer air pressure leakage check method is characterized in that, may further comprise the steps:
(1), utilize flange hole or screw on the case lid to connect rain glass and connection for breather pipe;
(2), all after sealing, open charging valve and in fuel tank, fill with nothing oil, anhydrous pressurized air to 10～15Kpa;
(3) if the pressure in the described step (two) changes in 8～10min, with brush degree of dipping in leakage brush sealing bonding wire from top to bottom one by one, there is Bubble formation at every brush one place or every inspection one place, make mark to be welded with chalk;
(4) if, that the leakage test ne-leakage is is qualified; If seepage is arranged, then after pressure relief, carry out immediately repair welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103308819A CN103364153A (en) | 2013-08-01 | 2013-08-01 | Air pressure leakage check method for transformer oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103308819A CN103364153A (en) | 2013-08-01 | 2013-08-01 | Air pressure leakage check method for transformer oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103364153A true CN103364153A (en) | 2013-10-23 |
Family
ID=49366009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103308819A Pending CN103364153A (en) | 2013-08-01 | 2013-08-01 | Air pressure leakage check method for transformer oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103364153A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323806A (en) * | 2018-11-20 | 2019-02-12 | 芜湖国睿兆伏电子有限公司 | A kind of oil-immersed transformer leakage test method |
| CN111751056A (en) * | 2020-07-08 | 2020-10-09 | 江苏华辰变压器股份有限公司 | Detection process for leakage test of transformer oil tank |
| CN112268665A (en) * | 2020-11-12 | 2021-01-26 | 一重集团天津重工有限公司 | Method for detecting leakage of welding seam of structural member cavity |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3381524A (en) * | 1966-02-23 | 1968-05-07 | Mc Graw Edison Co | Method and apparatus for testing hermetically sealed transformers |
| CN202533235U (en) * | 2012-05-02 | 2012-11-14 | 四川省南充晶塔变压器有限公司 | Leakage-testing device for oil tank of transformer |
| CN102967426A (en) * | 2012-12-13 | 2013-03-13 | 常州博朗低温设备有限公司 | Pressurizing and leakage detection device for vacuum clamping sleeve of tank |
| CN202869762U (en) * | 2012-10-29 | 2013-04-10 | 株洲联诚集团有限责任公司 | Pressure testing device of transformer fuel tank for locomotive |
-
2013
- 2013-08-01 CN CN2013103308819A patent/CN103364153A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3381524A (en) * | 1966-02-23 | 1968-05-07 | Mc Graw Edison Co | Method and apparatus for testing hermetically sealed transformers |
| CN202533235U (en) * | 2012-05-02 | 2012-11-14 | 四川省南充晶塔变压器有限公司 | Leakage-testing device for oil tank of transformer |
| CN202869762U (en) * | 2012-10-29 | 2013-04-10 | 株洲联诚集团有限责任公司 | Pressure testing device of transformer fuel tank for locomotive |
| CN102967426A (en) * | 2012-12-13 | 2013-03-13 | 常州博朗低温设备有限公司 | Pressurizing and leakage detection device for vacuum clamping sleeve of tank |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323806A (en) * | 2018-11-20 | 2019-02-12 | 芜湖国睿兆伏电子有限公司 | A kind of oil-immersed transformer leakage test method |
| CN111751056A (en) * | 2020-07-08 | 2020-10-09 | 江苏华辰变压器股份有限公司 | Detection process for leakage test of transformer oil tank |
| CN112268665A (en) * | 2020-11-12 | 2021-01-26 | 一重集团天津重工有限公司 | Method for detecting leakage of welding seam of structural member cavity |
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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: 20131023 |