CN108195627A - The hermetically sealed oil taking apparatus and method of a kind of bushing shell for transformer - Google Patents
The hermetically sealed oil taking apparatus and method of a kind of bushing shell for transformer Download PDFInfo
- Publication number
- CN108195627A CN108195627A CN201810189132.1A CN201810189132A CN108195627A CN 108195627 A CN108195627 A CN 108195627A CN 201810189132 A CN201810189132 A CN 201810189132A CN 108195627 A CN108195627 A CN 108195627A
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- transformer
- bushing shell
- hydraulic fluid
- oil
- fluid port
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1445—Overpressure, pressurisation at sampling point
- G01N2001/1463—Injector; Air-lift
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The hermetically sealed oil taking apparatus and method for a kind of bushing shell for transformer that the application provides, wherein, the hermetically sealed oil taking apparatus of bushing shell for transformer includes device body, centrum, device body is provided with the first hydraulic fluid port, the second hydraulic fluid port, first gas port, second gas port, third gas port, wherein, first hydraulic fluid port is stretched into bushing shell for transformer, and the second hydraulic fluid port is connected with sampler；First gas port leads in bushing shell for transformer, and second gas port, third gas port connect respectively with vacuum pump, nitrogen cylinder；During drawing oil sample, nitrogen is filled with into bushing shell for transformer, forms definitely normal pressure in casing, under positive pressure, oil sample is automatically flowed into sampler；During makeup oil, bushing shell for transformer is vacuumized, definitely negative pressure is formed in casing, under negative pressure effect, oil is automatically flowed into bushing shell for transformer；I.e. the device ensure that the leakproofness of entire sampling process, realize hermetically sealed sampling.
Description
Technical field
This application involves the hermetically sealed oil taking apparatus that electrical equipment takes oil tech field more particularly to a kind of bushing shell for transformer
And method.
Background technology
Transformer is one of important equipment in electric system, and transformer is to change alternating current using electromagnetic induction principle
The device of pressure, main member include iron core, winding, casing etc..
Casing plays an important role as one of transformer accessory, and set intraductal wire cable is impregnated by transformer oil to be protected
Shield, the stable operation that will directly affect transformer if casing goes wrong can cause transformer destructiveness accident, be when serious
The operation of guarantee transformer safety is needed to sample the transformer oil in casing, be judged by detecting the performance of transformer oil
The operation conditions of transformer.The method that current existing bushing shell for transformer takes oil is included from fuel tap or repairing mouth is taken to sample；From taking
Fuel tap sampling method be：Opening takes fuel tap lid, unclamps fuel tap and blocks, and transformer oil is flowed out along taking the endoporus of oil nozzle；From benefit
Hydraulic fluid port sampling method be：It opens repairing mouth and blocks screw, with sampling hose out of repairing mouth plug-in-sleeve, using the side of extraction
Insulating oil is extracted into sampling container by formula.
But using from when fuel tap or repairing mouth being taken to take out a part of oil sample, in casing due to oil level decline to be formed it is negative
Pressure, transformer oil cannot naturally be flowed out out of sampling valve or repairing mouth under negative pressure, need the sealing of artificial destruction casing can be complete
Into the follow-up process that draws oil sample, at this time inside the oxygen gas and water sleeve pipe in air, transformer oil is sent out under the action of oxygen and water
The chemical reactions such as raw oxidation, cracking, thus, the initial character of crude oil is destroyed in casing, reliability of operation in casing
It cannot be guaranteed；And the oil sample of acquisition is distorted due to the effect of oxygen and water occurs rotten, causes to represent true in casing
Real state, so as to influence the judgement to the normal operation of bushing shell for transformer.
Invention content
This application provides the hermetically sealed oil taking apparatus and method of a kind of bushing shell for transformer, transformer set when taking oil with guarantee
The leakproofness of pipe, so as to ensure the initial character of crude oil and the quality of acquisition oil sample in casing.
In order to solve the above-mentioned technical problem, the embodiment of the present application discloses following technical solution：
A kind of hermetically sealed oil taking apparatus for bushing shell for transformer that the application provides includes device body and described device ontology
Connected centrum, wherein,
Described device ontology is provided with the first hydraulic fluid port, first gas port；
On described device ontology, the side communicated with first hydraulic fluid port is equipped with the second hydraulic fluid port；
The first gas port is connected by three-way pipe with second gas port, third gas port respectively.
Preferably, the centrum is silicon rubber centrum；The centrum connects the cross-sectional area of contravention with described device ontology
More than the other end cross-sectional area of the centrum.
Preferably, hangnail connector is equipped at the first hydraulic fluid port port.
Preferably, second hydraulic fluid port is equipped with the first connector；The second gas port is equipped with the second connector；The third
Gas port is equipped with third connector.
The application also provides a kind of hermetically sealed method for extracting oil of bushing shell for transformer, the method includes：
Centrum is plugged in bushing shell for transformer, second gas port, third gas port respectively with vacuum pump, nitrogen cylinder
Connect；
Vacuum pump is opened, to vacuumizing in bushing shell for transformer, when vacuum degree reaches -0.1MPa, terminates to vacuumize
Operation；
Nitrogen cylinder is opened, reaches 0.11~0.15MPa in being filled with pressure in nitrogen to bushing shell for transformer in bushing shell for transformer
Terminate；
First hydraulic fluid port with hose is connected, the second hydraulic fluid port with rubber tube is connected, rubber tube is connected with sampler, is become
Depressor oil at positive pressure, is automatically flowed into sampler；
Vacuum pump is opened, to being vacuumized in bushing shell for transformer, the first hydraulic fluid port is connected with hose at this time, by the second oil
Mouth is connected with rubber tube, rubber tube is connected with recharging oil device, transformer oil is under suction function, automatically via recharging oil device stream
Enter in bushing shell for transformer, until oil level restores to taking oily front position；
Repetition vacuumizes, inflated with nitrogen operation, and the air in bushing shell for transformer is replaced as High Purity Nitrogen, ensures bushing shell for transformer
Interior no air.
The application provide a kind of bushing shell for transformer hermetically sealed oil taking apparatus and method, wherein, bushing shell for transformer it is complete
It seals oil taking apparatus and includes device body, centrum, device body is provided with the first hydraulic fluid port, first gas port；With the first hydraulic fluid port phase
Logical side is equipped with the second hydraulic fluid port；First gas port by three-way pipe respectively with second gas port, third gas port phase
Connection；Wherein, centrum is plugged in the first hydraulic fluid port in bushing shell for transformer to stretch into bushing shell for transformer, the second hydraulic fluid port and sampler
It is connected；First gas port leads in bushing shell for transformer, second gas port, third gas port respectively with vacuum pump, nitrogen
Bottle connects；Nitrogen cylinder is opened during drawing oil sample, nitrogen is entered by third gas port in bushing shell for transformer, shape in casing
Into definitely normal pressure, under positive pressure, oil sample is automatically flowed into via the second hydraulic fluid port in sampler, is avoided due to oil
The problem of position decline needs artificial destruction bobbin seal；During makeup oil, vacuum pump is opened, bushing shell for transformer is taken out true
Sky, casing is interior to form definitely negative pressure, and under negative pressure effect, oil sample automatically flows into bushing shell for transformer via the first hydraulic fluid port
It is interior；I.e. the device ensure that the leakproofness of entire sampling process, realize hermetically sealed sampling, in sampling process, the oxygen in air
Gas and water will not enter in bushing shell for transformer, not only ensure the initial character of crude oil in casing, but also the oil sample quality of acquisition is avoided to change
Become, so as to ensure the normal operation of bushing shell for transformer.
It should be understood that above general description and following detailed description are only exemplary and explanatory, not
The application can be limited.
Description of the drawings
Attached drawing herein is incorporated into specification and forms the part of this specification, shows the implementation for meeting the present invention
Example, and be used to explain the principle of the present invention together with specification.
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of hermetically sealed oil taking apparatus structure diagram of bushing shell for transformer provided by the embodiments of the present application；
Reference sign：
1- device bodies, 2- centrums, the second hydraulic fluid ports of 3-, the first hydraulic fluid ports of 4-, 5- first gas ports, 6- second gas are led to
Mouthful, 7- third gas ports, 8- hangnail connectors, 9- three-way pipes, the first connectors of 10-, the second connectors of 11-, 12- third connectors.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The consistent example of some aspects being described in detail in claims, of the invention.
Current existing bushing shell for transformer takes the device and method of oil to destroy the leakproofness of casing, leads to crude oil in casing
Initial character be destroyed, reliability of operation cannot be guaranteed in casing；And the oil sample of acquisition is because of the effect hair of oxygen and water
The matter that changes and be distorted, lead to that the time of day in casing cannot be represented, so as to influence sentencing to the normal operation of bushing shell for transformer
It is disconnected.Therefore there is an urgent need for the hermetically sealed oil taking apparatus and method of a kind of bushing shell for transformer.
In order that those skilled in the art will better understand the technical solution of the present invention, below in conjunction with the accompanying drawings to the present invention
Technical solution be described in further detail.
The hermetically sealed oil taking apparatus of a kind of bushing shell for transformer provided by the invention, including device body 1 and device body 1
Connected centrum 2, wherein, device body 1 is provided with the first hydraulic fluid port 4, first gas port 5；The side communicated with the first hydraulic fluid port 4 is set
There is the second hydraulic fluid port 3；First gas port 5 is connected by three-way pipe 9 with second gas port 6, third gas port 7.Having
In body implementation process, centrum 2 is silicon rubber centrum；Centrum 2 connect with described device ontology 1 contravention cross-sectional area be more than it is described
The other end cross-sectional area of centrum 2；Centrum 2 is inserted into bushing shell for transformer, the elasticity of centrum itself can play definitely close
Envelope acts on；When taking oil, oil sample is flowed into via the first hydraulic fluid port 4, the second hydraulic fluid port 3 in sampler；At this time in transformer set under oil level
Drop in order to avoid negative pressure in casing, needs to supplement oil sample toward in casing, and during repairing, oil sample is via the second hydraulic fluid port 3, the first hydraulic fluid port 4
In inflow transformer casing.
Further, hangnail connector 8 is equipped at 4 port of the first hydraulic fluid port；In specific implementation process, the first hydraulic fluid port 4 and transformation
Device oil injection apparatus is connected, transformer oil injection device can the oiling into bushing shell for transformer by hose, hose is stretched into change
In depressor casing, while bushing shell for transformer is vacuumized, be at this time negative pressure in bushing shell for transformer, under negative pressure, oil sample is from trend
It is flowed into bushing shell for transformer, when the oil level before oil sample is supplemented to sampling, completes the repairing in bushing shell for transformer, avoid under oil level
Drop generates negative pressure, and the setting of hangnail connector 8 can increase frictional force during contact of the hose with the first hydraulic fluid port 4, increase hose and
Leakproofness between first hydraulic fluid port 4 further avoids oxygen and moisture in air from entering in bushing shell for transformer.
In order to advanced optimize above-mentioned technical proposal, the second hydraulic fluid port 3 is equipped with the first connector 10；Second gas port 6 is equipped with
Second connector 11；Third gas port 7 is equipped with third connector 12.In specific implementation process, the first connector 10, the second connector 11
Third connector 12 is self-styled fast socket, in the case of can relying on any tool using self-styled fast socket, quick, simple, insurance
Ground repeats to be connected and disconnected from gas passage, and the first connector 10 can be connected with rubber tube, when needing to draw oil sample, by rubber tube with taking
Sampling device is connected, and sampler can be syringe；Second connector 11, third connector 12 are connect respectively with vacuum pump, nitrogen cylinder；
In order to ensure bushing shell for transformer as positive pressure during sampling, need to be filled with nitrogen in bushing shell for transformer；In order to ensure transformer during repairing
Casing is negative pressure, needs to vacuumize bushing shell for transformer；Therefore, nitrogen cylinder is opened during sampling, nitrogen is via third connector 12,
In one gas port, 5 inflow transformer casing；Vacuum pump is opened during repairing, via first gas port 5, the second connector 11 to set
Pipe is vacuumized；Second connector 11, third connector 12 setting can be to avoid vacuum pump or nitrogen cylinder be plugged repeatedly, in reality
In operation, the activity duration can be saved.
Specifically, in the present embodiment, operating method is：Centrum 2 is plugged in bushing shell for transformer, the second connector 11,
Third connector 12 connects respectively with vacuum pump, nitrogen cylinder；
Vacuum pump is opened, to vacuumizing in bushing shell for transformer, when vacuum degree reaches -0.1MPa, terminates to vacuumize
Operation；
Nitrogen cylinder is opened, reaches 0.11~0.15MPa in being filled with pressure in nitrogen to bushing shell for transformer in bushing shell for transformer
Terminate；
First hydraulic fluid port 4 with hose is connected, the second hydraulic fluid port 3 is connected with rubber tube, rubber tube is connected with sampler,
Transformer oil at positive pressure, is automatically flowed into sampler, completes sampling operation；
Vacuum pump is opened, to being vacuumized in bushing shell for transformer, the first hydraulic fluid port 4 is connected with hose at this time, by second
Hydraulic fluid port 3 is connected with rubber tube, rubber tube is connected with recharging oil device, transformer oil fills under suction function via repairing automatically
It puts in inflow transformer casing, until oil level restores to oily front position is taken, completes to mend sample operation；
Repetition vacuumizes, inflated with nitrogen operation, and the air in bushing shell for transformer is replaced as High Purity Nitrogen, ensures bushing shell for transformer
Interior no air.
In this way, the hermetically sealed oil taking apparatus and method of a kind of bushing shell for transformer that the application provides, wherein, bushing shell for transformer
Hermetically sealed oil taking apparatus include device body 1, centrum 2, device body 1 is provided with the first hydraulic fluid port 4, first gas port 5；With
The side that one hydraulic fluid port communicates is equipped with the second hydraulic fluid port 3；First gas port 5 by three-way pipe 9 respectively with second gas port 6,
Three gas ports 7 are connected；Wherein, the first hydraulic fluid port 4 is stretched into bushing shell for transformer, and the second hydraulic fluid port 3 is connected with sampler；First
Gas port 5 leads in bushing shell for transformer, and second gas port 6, third gas port 7 connect respectively with vacuum pump, nitrogen cylinder；
Nitrogen cylinder is opened during drawing oil sample, nitrogen is entered by third gas port 7 in bushing shell for transformer, is formed in casing certain
Ground normal pressure, under positive pressure, oil sample is automatically flowed into sampler, is avoided since oil level decline needs artificial destruction set
The problem of composite pipe tightness；During makeup oil, vacuum pump is opened, bushing shell for transformer is vacuumized, formed definitely in casing
Negative pressure, under negative pressure effect, oil is automatically flowed into bushing shell for transformer；I.e. the device ensure that the sealing of entire sampling process
Property, realize hermetically sealed sampling, in sampling process, oxygen and water in air will not enter in bushing shell for transformer, both ensure to cover
The initial character of crude oil in pipe, and the oil sample quality of acquisition is avoided to change, so as to ensure the normal operation of bushing shell for transformer.
Since embodiment of above is that reference combination illustrates on other modes, have between different embodiments
There is an identical part, just to refer each other for part identical, similar between each embodiment in this specification.Herein no longer in detail
It illustrates.
It should be noted that in the present specification, the relational terms of such as " first " and " second " or the like are used merely to
It distinguishes one entity or operation from another entity or operation, and not necessarily requires or imply these entities or operation
Between there are any this practical relationships or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Cover non-exclusive inclusion, so that article or equipment including a series of elements not only include those elements, but also
It further includes other elements that are not explicitly listed or further includes as article or the intrinsic element of equipment.Do not having more
In the case of more limitations, there is the element that sentence "including a ..." limits, it is not excluded that in the article including the element or
Also there are other identical elements in person's equipment.
Those skilled in the art will readily occur to the application its after considering specification and putting into practice the disclosure invented here
His embodiment.This application is intended to cover the present invention any variations, uses, or adaptations, these modifications, purposes or
Person's adaptive change follows the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.Description and embodiments are considered only as illustratively, and the true scope and spirit of the application will by right
The content asked is pointed out.
Above-described the application embodiment does not form the restriction to the application protection domain.
Claims (5)
1. the hermetically sealed oil taking apparatus of a kind of bushing shell for transformer, which is characterized in that including device body (1) and described device sheet
The connected centrum (2) of body (1), wherein,
Described device ontology (1) is provided with the first hydraulic fluid port (4), first gas port (5)；
On described device ontology (1), the side communicated with first hydraulic fluid port (4) is equipped with the second hydraulic fluid port (3)；
The first gas port (5) is connected by three-way pipe (9) with second gas port (6), third gas port (7) respectively
It is logical.
2. hermetically sealed oil taking apparatus according to claim 1, which is characterized in that the centrum (2) is silicon rubber centrum；
The centrum (2) connect with described device ontology (1) contravention cross-sectional area be more than the centrum (2) the other end it is transversal
Area.
3. hermetically sealed oil taking apparatus according to claim 1, which is characterized in that be equipped at the first hydraulic fluid port (4) port
Hangnail connector (8).
4. hermetically sealed oil taking apparatus according to claim 1, which is characterized in that second hydraulic fluid port (3) connects equipped with first
Head (10)；
The second gas port (6) is equipped with the second connector (11)；
The third gas port (7) is equipped with third connector (12).
5. the hermetically sealed method for extracting oil of a kind of bushing shell for transformer, which is characterized in that utilize bushing shell for transformer described in claim 1
Hermetically sealed oil taking apparatus, which is characterized in that the method includes：
Centrum is plugged in bushing shell for transformer, second gas port, third gas port respectively with vacuum pump, nitrogen cylinder phase
It connects；
Vacuum pump is opened, to being vacuumized in bushing shell for transformer, when vacuum degree reaches -0.1MPa, terminates vacuum pumping；
Nitrogen cylinder is opened, is terminated in being filled with pressure in nitrogen to bushing shell for transformer in bushing shell for transformer and reaching 0.11~0.15MPa；
First hydraulic fluid port with hose is connected, the second hydraulic fluid port with rubber tube is connected, rubber tube is connected with sampler, transformer
Oil at positive pressure, is automatically flowed into sampler；
Open vacuum pump, to being vacuumized in bushing shell for transformer, the first hydraulic fluid port be connected with hose at this time, by the second hydraulic fluid port and
Rubber tube is connected, and rubber tube is connected with recharging oil device, and transformer oil is flowed into via recharging oil device and become under suction function automatically
In depressor casing, until oil level restores to taking oily front position；
Repetition vacuumizes, inflated with nitrogen operation, and the air in bushing shell for transformer is replaced as High Purity Nitrogen, ensures nothing in bushing shell for transformer
Air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189132.1A CN108195627A (en) | 2018-03-08 | 2018-03-08 | The hermetically sealed oil taking apparatus and method of a kind of bushing shell for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189132.1A CN108195627A (en) | 2018-03-08 | 2018-03-08 | The hermetically sealed oil taking apparatus and method of a kind of bushing shell for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108195627A true CN108195627A (en) | 2018-06-22 |
Family
ID=62595181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810189132.1A Pending CN108195627A (en) | 2018-03-08 | 2018-03-08 | The hermetically sealed oil taking apparatus and method of a kind of bushing shell for transformer |
Country Status (1)
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|---|---|
| CN (1) | CN108195627A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273209A (en) * | 2018-09-26 | 2019-01-25 | 云南电网有限责任公司电力科学研究院 | A kind of bushing shell for transformer is hermetically sealed to be filled oil taking apparatus and fills method for extracting oil |
| CN110211805A (en) * | 2019-06-27 | 2019-09-06 | 国网河北省电力有限公司沧州供电分公司 | Bushing shell for transformer oiling tool |
| CN112837914A (en) * | 2020-12-31 | 2021-05-25 | 国网湖南省电力有限公司 | Device and method for on-site oil and gas supplement of high-voltage bushing of transformer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273209A (en) * | 2018-09-26 | 2019-01-25 | 云南电网有限责任公司电力科学研究院 | A kind of bushing shell for transformer is hermetically sealed to be filled oil taking apparatus and fills method for extracting oil |
| CN110211805A (en) * | 2019-06-27 | 2019-09-06 | 国网河北省电力有限公司沧州供电分公司 | Bushing shell for transformer oiling tool |
| CN110211805B (en) * | 2019-06-27 | 2022-03-01 | 国网河北省电力有限公司沧州供电分公司 | Oiling tool for transformer bushing |
| CN112837914A (en) * | 2020-12-31 | 2021-05-25 | 国网湖南省电力有限公司 | Device and method for on-site oil and gas supplement of high-voltage bushing of transformer |
| CN112837914B (en) * | 2020-12-31 | 2022-06-21 | 国网湖南省电力有限公司 | Device and method for on-site oil and gas supplement of high-voltage bushing of transformer |
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