CN110108423A - A kind of oil tank of transformer Oil Leakage Detecting method - Google Patents
A kind of oil tank of transformer Oil Leakage Detecting method Download PDFInfo
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- CN110108423A CN110108423A CN201910493035.6A CN201910493035A CN110108423A CN 110108423 A CN110108423 A CN 110108423A CN 201910493035 A CN201910493035 A CN 201910493035A CN 110108423 A CN110108423 A CN 110108423A
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- 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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to fuel tank leakage check technology, especially a kind of oil tank of transformer Oil Leakage Detecting method, it is characterized in that: including at least transformer, static pressure cage, liquid level sensor, heater, pressure sensing cell, oil conservater；The oil conservater of transformer upper end connects the entrance of third hand-operated valve by filling neck, and the manual valve outlet of third connects static pressure cage；The pouring orifice of transformer lower end connects the port of first manual valve by pipe fitting valve, and first manual valve another port connects the second port of static pressure cage；The second hand-operated valve and the 4th hand-operated valve are connected at other two upper and lower liquid level end of static pressure cage；Second hand-operated valve and the 4th hand-operated valve other end connect liquid level sensor；Static pressure cage oil is injected by filling neck, the liquid level in regulating static cage.It is convenient that it provides a kind of operation, saves few manpower, and it is complicated for operation and need the problem of high-altitude sets up oil storage tank in workshop to can solve existing leakage testing system.
Description
Technical field
The present invention relates to fuel tank leakage check technology, especially a kind of oil tank of transformer Oil Leakage Detecting method.
Background technique
For the sealing performance of testing transformer, it usually needs carry out leak test to transformer；The leak test of transformer is mainly logical
It crosses and certain pressure is provided oil tank of transformer, to examine the leakproofness of oil tank of transformer.For the portion of oil tank of transformer connection
Part does leak test test, comprising: the flange connections of cooler and fuel tank, the flange connections of casing and fuel tank, oil conservater and oil
The flange connections of case, the flange connections and all valves being connect with fuel tank and pipeline etc. for increasing seat fuel tank.Commonly
Transformer leak test mode mainly has: air pressure leakage check and fuel tank static pressure leak test.Oil tank of transformer static pressure leak test becomes in oil-immersed type power
Compared with frequently with mainly adjusting leak test pressure by adjusting the fuel tank liquid level height of oil-immersed power transformer in depressor；Gas
Press leak test in distribution transformer compared with frequently with mainly observing pressure by adjusting the gas pressure that is filled in oil tank of transformer
Variation, to judge whether oil tank of transformer leaks.
The fuel tank leak test of transformer is mainly carried out when transformer general assembly is completed at present.
Summary of the invention
The object of the present invention is to provide a kind of operation is convenient, save few manpower, can solve existing leakage testing system it is complicated for operation and
Need the problem of high-altitude sets up oil storage tank in workshop.
The object of the present invention is achieved like this, a kind of oil tank of transformer Oil Leakage Detecting method, it is characterized in that: including at least
Transformer, static pressure cage, liquid level sensor, heater, pressure sensing cell, oil conservater；The oil conservater of transformer upper end passes through
Filling neck connects the entrance of third hand-operated valve, and the manual valve outlet of third connects static pressure cage；The pouring orifice of transformer lower end is logical
The port of pipe fitting valve connection first manual valve is crossed, first manual valve another port connects the second port of static pressure cage；Quiet
Other two upper and lower liquid level end of cage is pressed to connect the second hand-operated valve and the 4th hand-operated valve；Second hand-operated valve and the 4th hand-operated valve
The other end connects liquid level sensor；Static pressure cage oil is injected by filling neck, the liquid level in regulating static cage；
The static pressure information of transformer is obtained according to Pascal's law p=ρ * g*h, density p=0.895 of transformer oil in calculation formula
kg/m3, g=9.8N/kg, h=oil column height/m obtain transformer oil leak information.
The acquisition transformer oil leak information is to determine that transformer is by obtaining the image information at transformer interface end
No oil leak.
Described injects static pressure cage oil by filling neck, the liquid level in regulating static cage, liquid therein
Position variation is every time between 50-2000mm.
The transformer is fixed in vibration-damped table.
The vibration-damped table is the vibration-damped table of a controllable vibration frequency.
The pouring orifice of the transformer lower end connects the port of first manual valve, pipe fitting valve therein by pipe fitting valve
Door includes: the 5th hand-operated valve, the 6th hand-operated valve, the first pneumatic operated valve, the second pneumatic operated valve；Pouring orifice concatenate respectively the second pneumatic operated valve and
Pressure sensing cell, pressure sensing cell divide two-way, and the first via is connect through the first pneumatic operated valve with the port of first manual valve；Second
Six hand-operated valve of Lu Jing, heater and the 5th hand-operated valve form cascade by external tapping to external tapping.
The principle of the present invention and advantage are: filling neck is connected the first manual valve at the top of static pressure cage oil column by the present invention
Interface, the oil outlet of static pressure cage lower is connected to the oil conservater in the transformer upper left corner by hose, passes through oil pump oiling to needing
The position wanted, stops refueling to transformer, shows liquid level by liquid level sensor, and operator more can easily operate,
Transformer is realized in factory's leak test, it is complicated for operation and the high-altitude in workshop is needed to set up oil storage tank to solve existing leakage testing system
Problem.
Oil column device has liquid level display, and operator more can easily be operated by oil column leakage testing device, real
It is complicated for operation and the high-altitude in workshop is needed to set up asking for oil storage tank to solve existing leakage testing system in factory's leak test for existing transformer
Topic.
Detailed description of the invention
Below with reference to embodiment attached drawing, the invention will be further described:
Fig. 1 is the present embodiment structure principle chart.
In figure, 1, transformer；2, static pressure cage；3, liquid level sensor；4, first manual valve；5, the second hand-operated valve；6,
Three hand-operated valves；7, the 4th hand-operated valve；8, the 5th hand-operated valve；9, the 6th hand-operated valve；10, the first pneumatic operated valve；11, the second pneumatic operated valve；
12, heater；13, pressure sensing cell；14, oil conservater；15, filling neck；16, pouring orifice；17, external tapping.
Specific embodiment
As shown in Figure 1, a kind of oil tank of transformer Oil Leakage Detecting method, it is characterized in that: including at least transformer 1, static pressure is hung
Tank 2, liquid level sensor 3, heater 12, pressure sensing cell 13, oil conservater 14；The oil conservater 14 of 1 upper end of transformer passes through note
Oily hose 15 connects the entrance of third hand-operated valve 6, the outlet of third hand-operated valve 6 connection static pressure cage 2；The oiling of 1 lower end of transformer
Mouth 16 connects the port of first manual valve 4 by pipe fitting valve, and 4 another port of first manual valve connects the second of static pressure cage 2
Port；The second hand-operated valve 5 and the 4th hand-operated valve 7 are connected at other two upper and lower liquid level end of static pressure cage 2；Second hand-operated valve 5
Liquid level sensor 3 is connected with 7 other end of the 4th hand-operated valve；2 oil of static pressure cage is injected by filling neck 15, is adjusted quiet
Press the liquid level in cage 2；
The static pressure information of transformer is obtained according to Pascal's law p=ρ * g*h, density p=0.895 of transformer oil in calculation formula
kg/m3, g=9.8N/kg, h=oil column height/m obtain 1 oil leak information of transformer.
The 1 oil leak information of acquisition transformer is to determine transformer 1 by obtaining the image information of 1 interface end of transformer
Whether oil leak.There is camera unit in the side of transformer 1.
Described injects 2 oil of static pressure cage by filling neck 15, the liquid level in regulating static cage 2, wherein
Liquid level variation every time between 50-2000mm.This way makes detection become a kind of standard.
The transformer 1 is fixed in vibration-damped table.This is because caused oil leak can shadow under vibration environment for transformer 1
Ring the authenticity of detection.
The vibration-damped table is the vibration-damped table of a controllable vibration frequency, to reach the dual function of the vibration of damping.
The pouring orifice 16 of 1 lower end of transformer connects the port of first manual valve 4, pipe therein by pipe fitting valve
Part valve includes: the 5th hand-operated valve 8, the 6th hand-operated valve 9, the first pneumatic operated valve 10, the second pneumatic operated valve 11；Pouring orifice 16 concatenates respectively
Second pneumatic operated valve 11 and pressure sensing cell 13, pressure sensing cell 13 divide two-way, and the first via is through the first pneumatic operated valve 10 and first
The port of hand-operated valve 4 connects；The 6th hand-operated valve 9 of second tunnel, heater 12 and the 5th hand-operated valve 8 arrive external tapping 17, by outer
Interface 17 forms cascade.
Filling neck 15 is connected the interface of the first manual valve 4 at the top of 2 oil column of static pressure cage, static pressure cage 2 by the present invention
The oil outlet of lower is connected to the oil conservater 14 in 1 upper left corner of transformer by hose, by oil pump oiling to the position needed, stops
It refuels to transformer, liquid level is shown by liquid level sensor 3, operator more can easily operate, and realize that transformer exists
Factory's leak test solves the problems, such as that existing leakage testing system is complicated for operation and the high-altitude in workshop is needed to set up oil storage tank.
For the requirement of different voltages grade and technique, oil leak is detected using fuel tank static pressure, according to the oil column of certain liquid level
Filling neck 15 is connected static pressure for the requirement of different voltages grade and technique by the working principle that can produce corresponding pressure
The oil outlet of the oil column bottom of cage 2,2 eminence of static pressure cage is connected to transformer oil box top oil conservater 14 by hose 15, infuses
Oil stops refueling to transformer to the position needed.
Claims (6)
1. a kind of oil tank of transformer Oil Leakage Detecting method, it is characterized in that: including at least transformer (1), static pressure cage (2), liquid level
Sensor (3), heater (12), pressure sensing cell (13), oil conservater (14)；The oil conservater (14) of transformer (1) upper end is logical
Cross the entrance of filling neck (15) connection third hand-operated valve (6), third hand-operated valve (6) outlet connection static pressure cage (2)；Transformer
(1) port of the pouring orifice (16) of lower end by pipe fitting valve connection first manual valve (4), first manual valve (4) another port
Connect the second port of static pressure cage (2)；In other two upper and lower liquid level end connection the second hand-operated valve (5) of static pressure cage (2)
With the 4th hand-operated valve (7)；Second hand-operated valve (5) connects liquid level sensor (3) with the 4th hand-operated valve (7) other end；Pass through oiling
Hose (15) injects static pressure cage (2) oil, the liquid level in regulating static cage (2)；
The static pressure information of transformer is obtained according to Pascal's law p=ρ * g*h, density p=0.895 of transformer oil in calculation formula
kg/m3, g=9.8N/kg, h=oil column height/m obtain transformer (1) oil leak information.
2. a kind of oil tank of transformer Oil Leakage Detecting method according to claim 1, it is characterized in that: the acquisition transformer
(1) oil leak information be by obtain transformer (1) interface end image information determine transformer (1) whether oil leak.
3. a kind of oil tank of transformer Oil Leakage Detecting method according to claim 1, it is characterized in that: described soft by oiling
Pipe (15) injects static pressure cage (2) oil, the liquid level in regulating static cage (2), and liquid level variation therein is every time in 50-
Between 2000mm.
4. a kind of oil tank of transformer Oil Leakage Detecting method according to claim 1, it is characterized in that: the transformer (1)
It is fixed in vibration-damped table.
5. a kind of oil tank of transformer Oil Leakage Detecting method according to claim 4, it is characterized in that: the vibration-damped table is one
The vibration-damped table of a controllable vibration frequency.
6. a kind of oil tank of transformer Oil Leakage Detecting method according to claim 1, it is characterized in that: the transformer (1)
For the pouring orifice (16) of lower end by the port of pipe fitting valve connection first manual valve (4), pipe fitting valve therein includes: the 5th hand
Dynamic valve (8), the 6th hand-operated valve (9), the first pneumatic operated valve (10), the second pneumatic operated valve (11)；Pouring orifice (16) concatenates the second gas respectively
Dynamic valve (11) and pressure sensing cell (13), pressure sensing cell (13) divide two-way, and the first via is through the first pneumatic operated valve (10) and the
The port of one hand-operated valve (4) connects；The 6th hand-operated valve (9) of second tunnel, heater (12) and the 5th hand-operated valve (8) arrive external tapping
(17), cascade is formed by external tapping (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493035.6A CN110108423A (en) | 2019-06-06 | 2019-06-06 | A kind of oil tank of transformer Oil Leakage Detecting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493035.6A CN110108423A (en) | 2019-06-06 | 2019-06-06 | A kind of oil tank of transformer Oil Leakage Detecting method |
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| Publication Number | Publication Date |
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| CN110108423A true CN110108423A (en) | 2019-08-09 |
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| CN201910493035.6A Pending CN110108423A (en) | 2019-06-06 | 2019-06-06 | A kind of oil tank of transformer Oil Leakage Detecting method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113932992A (en) * | 2020-07-13 | 2022-01-14 | 特变电工智能电气有限责任公司 | Transformer oil static pressure device and transformer system |
| CN114394389A (en) * | 2021-12-31 | 2022-04-26 | 中国启源工程设计研究院有限公司 | A transport system suitable for hierarchically arranged hazardous waste sorting process |
| CN117553998A (en) * | 2024-01-11 | 2024-02-13 | 南京立业电力变压器有限公司 | Static pressure constant voltage device and method for transformer |
| CN119381122A (en) * | 2024-12-27 | 2025-01-28 | 西安西电变压器有限责任公司 | A transformer and a liquid level detection method thereof |
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| JPH05283240A (en) * | 1992-04-01 | 1993-10-29 | Toshiba Corp | Oil-filled transformer |
| CN201594031U (en) * | 2009-12-04 | 2010-09-29 | 卧龙电气集团股份有限公司 | Leak test device for transformer oil tank |
| CN102760557A (en) * | 2012-07-31 | 2012-10-31 | 山东电力集团公司济南供电公司 | Online oil replenishing and draining device for transformer oil conservator |
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| KR101635370B1 (en) * | 2016-02-16 | 2016-07-01 | 부림자동화(주) | Hydraulic cylinder inside oil leakage measuring equipment and the measuring methods |
| CN108594874A (en) * | 2018-06-13 | 2018-09-28 | 卧龙电气银川变压器有限公司 | A kind of transformer static pressure tank automatic oil recharging device |
| CN210073570U (en) * | 2019-06-06 | 2020-02-14 | 中国启源工程设计研究院有限公司 | Transformer oil-purifying circulation system |
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2019
- 2019-06-06 CN CN201910493035.6A patent/CN110108423A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05283240A (en) * | 1992-04-01 | 1993-10-29 | Toshiba Corp | Oil-filled transformer |
| CN201594031U (en) * | 2009-12-04 | 2010-09-29 | 卧龙电气集团股份有限公司 | Leak test device for transformer oil tank |
| CN102760557A (en) * | 2012-07-31 | 2012-10-31 | 山东电力集团公司济南供电公司 | Online oil replenishing and draining device for transformer oil conservator |
| CN103398830A (en) * | 2013-08-12 | 2013-11-20 | 贵州长征电力设备有限公司 | Oil chamber sealing leak detection device and method of on-load tap-changer |
| CN103528769A (en) * | 2013-10-24 | 2014-01-22 | 中电电气(江苏)股份有限公司 | Sealing leakage test device for oil-immersed transformer |
| CN103578699A (en) * | 2013-11-05 | 2014-02-12 | 国家电网公司 | High-oil-level differential type leak detection device for oil tank |
| KR101635370B1 (en) * | 2016-02-16 | 2016-07-01 | 부림자동화(주) | Hydraulic cylinder inside oil leakage measuring equipment and the measuring methods |
| CN108594874A (en) * | 2018-06-13 | 2018-09-28 | 卧龙电气银川变压器有限公司 | A kind of transformer static pressure tank automatic oil recharging device |
| CN210073570U (en) * | 2019-06-06 | 2020-02-14 | 中国启源工程设计研究院有限公司 | Transformer oil-purifying circulation system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113932992A (en) * | 2020-07-13 | 2022-01-14 | 特变电工智能电气有限责任公司 | Transformer oil static pressure device and transformer system |
| CN114394389A (en) * | 2021-12-31 | 2022-04-26 | 中国启源工程设计研究院有限公司 | A transport system suitable for hierarchically arranged hazardous waste sorting process |
| CN117553998A (en) * | 2024-01-11 | 2024-02-13 | 南京立业电力变压器有限公司 | Static pressure constant voltage device and method for transformer |
| CN117553998B (en) * | 2024-01-11 | 2024-03-26 | 南京立业电力变压器有限公司 | Static pressure constant voltage device and method for transformer |
| CN119381122A (en) * | 2024-12-27 | 2025-01-28 | 西安西电变压器有限责任公司 | A transformer and a liquid level detection method thereof |
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