CN104198125B - A kind of sealing monitoring method of analogue transformer bobbin seal situation - Google Patents
A kind of sealing monitoring method of analogue transformer bobbin seal situation Download PDFInfo
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- CN104198125B CN104198125B CN201410457546.XA CN201410457546A CN104198125B CN 104198125 B CN104198125 B CN 104198125B CN 201410457546 A CN201410457546 A CN 201410457546A CN 104198125 B CN104198125 B CN 104198125B
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- 238000007789 sealing Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 239000000741 silica gel Substances 0.000 claims abstract description 31
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000008859 change Effects 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 6
- 230000002706 hydrostatic effect Effects 0.000 claims description 53
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 238000011160 research Methods 0.000 abstract description 3
- 238000005538 encapsulation Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
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Abstract
The present invention relates to the sealing monitoring method of a kind of analogue transformer bobbin seal situation, comprise the following steps: the device of an analogue transformer bobbin seal situation is provided；Oiling also seals；SF is installed6Air density meter and silica gel tank；SF is installed6Gas on-line testing sensor；Connect vavuum pump and SF6Gas injection equipment, first vacuumizes device with vavuum pump, then by SF6In gas injection apparatus, and good seal；Utilize SF6Air density meter monitoring SF6The change of gas density, by monitoring SF6Gas density carrys out the sealing situation of judgment means.The present invention is by the bad and inner inlet situation to the encapsulation process at pouring orifice and analogue transformer bobbin seal of dripping inside device, and by the exterior measures adjusting means temperature, carry out the change of internal oil temperature in analogue transformer sleeve pipe running, obtain bushing shell for transformer when poor sealing, SF6Gaseous state amount and the change of silica gel, the research that prevention sleeve pipe fault occurs serves positive role.
Description
Technical field
The present invention relates to the sealing monitoring method of a kind of analogue transformer bobbin seal situation, belong to field of power.
Background technology
As the important accessory of transformer, bushing shell for transformer in the safe operation of power system in occupation of a particularly important ring.Sleeve pipe fault often causes large-area power-cuts, and brings direct economic loss.Research finds: making moist after the beginning of sleeve pipe fault poor sealing often or intaking causes, and is therefore badly in need of that the sealing of bushing shell for transformer is monitored trouble saving and occurs.In view of bushing shell for transformer is bulky, once seal break-off processes that to carry out sealing monitoring test workload bigger again, and be difficult to be adjusted its internal temperature controlling, therefore a kind of method being necessary to design analogue transformer bobbin seal situation and its sealing is monitored.
Summary of the invention
It is an object of the invention to provide the sealing monitoring method of a kind of analogue transformer bobbin seal situation, facilitate analogue transformer sleeve pipe in the case of good seal, poor sealing and inner inlet, observe SF6The color change of the density of gas, pressure, humidity, temperature and silica gel.
To achieve these goals, the technical scheme is that the sealing monitoring method of a kind of analogue transformer bobbin seal situation, comprise the following steps:
(1) device of an analogue transformer bobbin seal situation is provided, this device is hydrostatic column, the top end face of described hydrostatic column is provided with six hickeys, described six hickeys comprise two external screw joints and four box thread interfaces, and said two external screw joint is all as pouring orifice；
(2) injecting hydrostatic column from two pouring orifices by transformer oil, till filling, i.e. hydrostatic column inner top leaves segment space, is then sealed by pouring orifice with sealing ring and nut, it is ensured that sealing is reliable；
(3) by adapter by two SF with triple valve6Air density meter is separately mounted to two of which box thread interface, equipped with the silica gel tank box thread interface installed therein being dried intact silica gel；
(4) by adapter by SF6Gas on-line testing sensor is arranged on last box thread interface；
(5) by vavuum pump and SF6Gas injection equipment is connected respectively to two SF6On the triple valve of air density meter, first with vavuum pump, hydrostatic column is vacuumized, also the air of gas injecting pipe is released simultaneously；When the gas pressure in hydrostatic column is close to vacuum, stop vacuumizing and by SF6In gas injection apparatus；As the SF in hydrostatic column6When gas pressure reaches 0.5 atmospheric pressure, stop gas injection, by vavuum pump and SF6The pipeline of gas injection equipment separates from triple valve, and the two of triple valve imports is sealed；
(6) SF is utilized6Air density meter monitoring SF6The change of gas density, by monitoring SF6Gas density carrys out the sealing situation of judgment means, observes hydrostatic column SF in the case of good seal6The color change of gas density, pressure, humidity, temperature and silica gel.
Further, the method also includes step (7), does not tighten, by destroying its sealing ring or nut at the pouring orifice of hydrostatic column, poor sealing situation of simulating, observes hydrostatic column SF in the case of poor sealing6The color change of gas density, pressure, humidity, temperature and silica gel.
Further, the method also includes step (8), carrys out simulated interior flooded condition by instilling the moisture of scheduled volume in hydrostatic column, when in oil containing moisture, silica gel color in silica gel tank can produce change, observes hydrostatic column SF in the case of inner inlet6The color change of gas density, pressure, humidity, temperature and silica gel.
Further, hydrostatic column is positioned in baking oven by the method, utilizes baking oven to make hydrostatic column be under different temperatures, the change of the internal oil temperature of simulation actual moving process middle sleeve.
Further, in step (5), when the gas pressure in hydrostatic column reaches 200Pa, stop vacuumizing.
Further, described box thread interface comprises three G1/4 box thread interfaces and a G1 box thread interface, two SF6The triple valve of air density meter is respectively by adapter two G1/4 box thread interfaces installed therein, and described silica gel tank is arranged on another G1/4 box thread interface, described SF6Gas on-line testing sensor is arranged on G1 box thread interface by adapter.
Further, described SF6Gas on-line testing sensor is GDHT-20 sensor.
Further, described external screw joint is M27 × 1.5 external screw joint.
Further, a diameter of 320mm of described hydrostatic column, height is 300mm.
Further, described hydrostatic column bilateral symmetry is provided with handle.
The method have the advantages that the device volume that the sealing monitoring method of this analogue transformer bobbin seal situation is used is little, table meter interface is many, introduce SF6Gas and silica gel, the sealing situation within monitoring device is carried out by density meter, sensor and silica gel tank, it is easy to by the bad and inner inlet situation to the encapsulation process at pouring orifice and analogue transformer bobbin seal of dripping inside device, and the exterior measures adjusting means temperature can be passed through, carry out the change of internal oil temperature in analogue transformer sleeve pipe running, obtain bushing shell for transformer when poor sealing, SF6Gaseous state amount and the change of silica gel, the research that prevention sleeve pipe fault occurs serves positive role.
The present invention will be further described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the schematic top plan view of hydrostatic column.
In figure: 1-hydrostatic column, 2-external screw joint, 3-G1/4 box thread interface, 4-G1 box thread interface, 5-SF6Air density meter, 6-silica gel tank, 7-SF6Gas on-line testing sensor, 8-handle.
Detailed description of the invention
As shown in Figure 1 and 2, the sealing monitoring method of a kind of analogue transformer bobbin seal situation, comprise the following steps:
(1) device of an analogue transformer bobbin seal situation is provided, this device is hydrostatic column 1, the top end face of described hydrostatic column 1 is provided with six hickeys, described six hickeys comprise two external screw joints 2 and four box thread interfaces, and said two external screw joint 2 is all as pouring orifice；
(2) injecting hydrostatic column 1 from two pouring orifices by transformer oil, till filling, i.e. hydrostatic column 1 inner top leaves segment space, is then sealed by pouring orifice with sealing ring and nut, it is ensured that sealing is reliable；
(3) by adapter by two SF with triple valve6Air density meter 5 is separately mounted to two of which box thread interface, equipped with the silica gel tank 6 box thread interface installed therein being dried intact silica gel；
(4) by adapter by SF6Gas on-line testing sensor 7 is arranged on last box thread interface；
(5) by vavuum pump and SF6Gas injection equipment is connected respectively to two SF6On the triple valve of air density meter 5, first with vavuum pump, hydrostatic column 1 is vacuumized, also the air of gas injecting pipe is released simultaneously；When the gas pressure in hydrostatic column 1 is close to vacuum, stop vacuumizing and by SF6In gas injection apparatus；SF in hydrostatic column 16When gas pressure reaches 0.5 atmospheric pressure, stop gas injection, by vavuum pump and SF6The pipeline of gas injection equipment separates from triple valve, and the two of triple valve imports is sealed；
(6) SF is utilized6Air density meter 5 monitors SF6The change of gas density, by monitoring SF6Gas density carrys out the sealing situation of judgment means, observes the hydrostatic column 1 SF in the case of good seal6The color change of gas density, pressure, humidity, temperature and silica gel.
In the present embodiment, the method can also include step (7), does not tighten, by destroying its sealing ring or nut at the pouring orifice of hydrostatic column 1, poor sealing situation of simulating, observes the hydrostatic column 1 SF in the case of poor sealing6The color change of gas density, pressure, humidity, temperature and silica gel.
In the present embodiment, the method can also include step (8) again, carrys out simulated interior flooded condition by instilling the moisture of scheduled volume in hydrostatic column 1, when in oil containing moisture, silica gel color in silica gel tank 6 can produce change, observes the hydrostatic column 1 SF in the case of inner inlet6The color change of gas density, pressure, humidity, temperature and silica gel.
In the present embodiment, hydrostatic column 1 can also be positioned in baking oven by the method, utilizes baking oven to make hydrostatic column 1 be under different temperatures, the change of the internal oil temperature of simulation actual moving process middle sleeve.
In the present embodiment, in step (5), when the gas pressure in hydrostatic column 1 reaches 200Pa, stop vacuumizing.
In the present embodiment, described external screw joint 2 is M27 × 1.5 external screw joint, and described box thread interface comprises three G1/4 box thread interfaces 3 and a G1 box thread interface 4, two SF6The triple valve of air density meter 5 is respectively by adapter two G1/4 box thread interfaces 3 installed therein, and described silica gel tank 6 is arranged on another G1/4 box thread interface 3, described SF6Gas on-line testing sensor 7 is arranged on G1 box thread interface 4 by adapter.Wherein, described G1 box thread interface 4 is positioned in the middle of the top end face of hydrostatic column 1, and described G1/4 box thread interface 3 and external screw joint 2 are annularly-distributed in all sides of G1 box thread interface 4.
In the present embodiment, described SF6Gas on-line testing sensor 7 is GDHT-20 sensor, to monitor SF in real time6The density of gas, pressure, humidity and temperature, but be not limited thereto.Moving for convenience, described hydrostatic column 1 bilateral symmetry is provided with handle 8, a diameter of 320mm of described hydrostatic column 1, and height is 300mm.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent and modification, all should belong to the covering scope of the present invention.
Claims (10)
1. the sealing monitoring method of an analogue transformer bobbin seal situation, it is characterised in that comprise the following steps:
(1) device of an analogue transformer bobbin seal situation is provided, this device is hydrostatic column, the top end face of described hydrostatic column is provided with six hickeys, described six hickeys comprise two external screw joints and four box thread interfaces, and said two external screw joint is all as pouring orifice；
(2) injecting hydrostatic column from two pouring orifices by transformer oil, till filling, i.e. hydrostatic column inner top leaves segment space, is then sealed by pouring orifice with sealing ring and nut, it is ensured that sealing is reliable；
(3) by adapter by two SF with triple valve6Air density meter is separately mounted to two of which box thread interface, equipped with the silica gel tank box thread interface installed therein being dried intact silica gel；
(4) by adapter by SF6Gas on-line testing sensor is arranged on last box thread interface；
(5) by vavuum pump and SF6Gas injection equipment is connected respectively to two SF6On the triple valve of air density meter, first with vavuum pump, hydrostatic column is vacuumized, also the air of gas injecting pipe is released simultaneously；When the gas pressure in hydrostatic column is close to vacuum, stop vacuumizing and by SF6In gas injection apparatus；As the SF in hydrostatic column6When gas pressure reaches 0.5 atmospheric pressure, stop gas injection, by vavuum pump and SF6The pipeline of gas injection equipment separates from triple valve, and the two of triple valve imports is sealed；
(6) SF is utilized6Air density meter monitoring SF6The change of gas density, by monitoring SF6Gas density carrys out the sealing situation of judgment means, observes hydrostatic column SF in the case of good seal6The color change of gas density, pressure, humidity, temperature and silica gel.
The sealing monitoring method of analogue transformer bobbin seal situation the most according to claim 1, it is characterized in that: also include step (7), do not tighten, by destroying its sealing ring or nut at the pouring orifice of hydrostatic column, poor sealing situation of simulating, observe hydrostatic column SF in the case of poor sealing6The color change of gas density, pressure, humidity, temperature and silica gel.
The sealing monitoring method of analogue transformer bobbin seal situation the most according to claim 1 and 2, it is characterized in that: also include step (8), simulated interior flooded condition is carried out by instilling the moisture of scheduled volume in hydrostatic column, when in oil containing moisture, silica gel color in silica gel tank can produce change, observes hydrostatic column SF in the case of inner inlet6The color change of gas density, pressure, humidity, temperature and silica gel.
The sealing monitoring method of analogue transformer bobbin seal situation the most according to claim 1, it is characterized in that: hydrostatic column is positioned in baking oven, baking oven is utilized to make hydrostatic column be under different temperatures, the change of the internal oil temperature of simulation actual moving process middle sleeve.
The sealing monitoring method of analogue transformer bobbin seal situation the most according to claim 1, it is characterised in that: in step (5), when the gas pressure in hydrostatic column reaches 200Pa, stop vacuumizing.
The sealing monitoring method of analogue transformer bobbin seal situation the most according to claim 1, it is characterised in that: described box thread interface comprises three G1/4 box thread interfaces and a G1 box thread interface, two SF6The triple valve of air density meter is respectively by adapter two G1/4 box thread interfaces installed therein, and described silica gel tank is arranged on another G1/4 box thread interface, described SF6Gas on-line testing sensor is arranged on G1 box thread interface by adapter.
The sealing monitoring method of analogue transformer bobbin seal situation the most according to claim 1, it is characterised in that: described SF6Gas on-line testing sensor is GDHT-20 sensor.
The sealing monitoring method of analogue transformer bobbin seal situation the most according to claim 1, it is characterised in that: described external screw joint is M27 × 1.5 external screw joint.
The sealing monitoring method of analogue transformer bobbin seal situation the most according to claim 1, it is characterised in that: a diameter of 320mm of described hydrostatic column, height is 300mm.
The sealing monitoring method of analogue transformer bobbin seal situation the most according to claim 1, it is characterised in that: described hydrostatic column bilateral symmetry is provided with handle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410457546.XA CN104198125B (en) | 2014-09-10 | 2014-09-10 | A kind of sealing monitoring method of analogue transformer bobbin seal situation |
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| CN201410457546.XA CN104198125B (en) | 2014-09-10 | 2014-09-10 | A kind of sealing monitoring method of analogue transformer bobbin seal situation |
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| CN104198125A CN104198125A (en) | 2014-12-10 |
| CN104198125B true CN104198125B (en) | 2016-09-07 |
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| CN104748917A (en) * | 2015-04-20 | 2015-07-01 | 江苏宝亨新电气有限公司 | Device for remotely monitoring sealing property of casing pipe of transformer |
| CN106124135B (en) * | 2016-08-31 | 2019-05-03 | 国家电网公司 | A kind of device and method sealing tiny leakage for detecting high-power transformer cannula tip |
| CN110296795B (en) * | 2018-03-22 | 2020-10-23 | 武汉智能装备工业技术研究院有限公司 | Oil flow overflow fault detection method for oil-filled high-voltage bushing and sampler |
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| CN112305013B (en) * | 2020-10-22 | 2023-05-02 | 广东康德威电气股份有限公司 | Big data type transformer safety monitoring early warning management system |
| CN112816140B (en) * | 2020-12-31 | 2023-08-15 | 国网湖南省电力有限公司 | Device and method for on-site detection of oil seepage performance of high-voltage bushing of transformer |
| CN114323421B (en) * | 2021-12-08 | 2023-07-21 | 兰州空间技术物理研究所 | Device and method for protecting IE514 separating gauge from humidity |
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| IT1240112B (en) * | 1990-02-22 | 1993-11-27 | Fiat Auto Spa | PROCEDURE AND APPARATUS FOR THE INSPECTION OF SEALS IN A FUEL-EXHAUST COMPLEX OF AN INTERNAL COMBUSTION ENGINE WITH FUEL INJECTION FOR MOTOR VEHICLES. |
| UA78607C2 (en) * | 2005-04-25 | 2007-04-10 | M K Yangel State Design Office | Method for testing tightness of an article |
| KR100766521B1 (en) * | 2007-06-18 | 2007-10-15 | 공준식 | Testing apparatus of seal ring for hydrogen gas preventing leakage |
| CN100592068C (en) * | 2007-09-11 | 2010-02-24 | 上海哈德电气技术有限公司 | SF6 gas density and micro-water integrated on-line monitor |
| CN201207027Y (en) * | 2008-08-28 | 2009-03-11 | 铁道部运输局 | Pressure testing and temperature testing device for high voltage bushing and low pressure terminal plate of transformer |
| CN201449388U (en) * | 2009-05-12 | 2010-05-05 | 常州海立普电力科技有限公司 | SF6 gas on-line micro-water density detection device |
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| CN203422100U (en) * | 2013-06-28 | 2014-02-05 | 山西省电力公司太原供电分公司 | Leading-out device used for optical fiber sensor and capable of being applied to transformer |
| CN203431383U (en) * | 2013-08-30 | 2014-02-12 | 国家电网公司 | Gas pressure meter tee-joint connector assembly for electrical power system |
| CN203488991U (en) * | 2013-09-25 | 2014-03-19 | 内蒙古电力（集团）有限责任公司薛家湾供电局 | Manual inflation vacuumizing device of sulfur hexafluoride electrical device |
| CN203690755U (en) * | 2013-11-28 | 2014-07-02 | 国家电网公司 | Changing hoisting device for silica gel pot of transformer |
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