CN207832518U - A kind of hermetically sealed oil taking apparatus of bushing shell for transformer - Google Patents
A kind of hermetically sealed oil taking apparatus of bushing shell for transformer Download PDFInfo
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- CN207832518U CN207832518U CN201820319130.5U CN201820319130U CN207832518U CN 207832518 U CN207832518 U CN 207832518U CN 201820319130 U CN201820319130 U CN 201820319130U CN 207832518 U CN207832518 U CN 207832518U
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- transformer
- bushing shell
- hydraulic fluid
- oil
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Abstract
A kind of hermetically sealed oil taking apparatus of bushing shell for transformer provided by the present application, 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 stretches 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 with vacuum pump, nitrogen cylinder respectively；During drawing oil sample, it is filled with nitrogen into bushing shell for transformer, forms definitely normal pressure in casing, under positive pressure, oil sample automatically flows into sampler；During makeup oil, bushing shell for transformer is vacuumized, forms definitely negative pressure in casing, under negative pressure force effect, oil automatically flows 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 dresses for taking oil that electrical equipment takes oil tech field more particularly to a kind of bushing shell for transformer
It sets.
Background technology
Transformer is one of the 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, if casing, which goes wrong, to directly affect the stable operation of transformer, can cause transformer destructiveness accident, be when serious
The operation of guarantee transformer safety needs, to the transformer oil sampling in casing, by detecting the performance of transformer oil to judge
The operation conditions of transformer.The method that current existing bushing shell for transformer takes oil includes from taking fuel tap or repairing mouth 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
At 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 because the effect of oxygen and water generation is rotten, causes to represent true in casing
Real state, to influence the judgement to the normal operation of bushing shell for transformer.
Utility model content
This application provides a kind of hermetically sealed oil taking apparatus of bushing shell for transformer, and bushing shell for transformer is close when ensureing to take oil
Feng Xing, to ensure the quality of the initial character of crude oil and 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 of bushing shell for transformer provided by the present application, including device body and described device sheet
The connected centrum of body, wherein described device ontology is provided with the first hydraulic fluid port, first gas port；On described device ontology, with institute
It states the side that the first hydraulic fluid port communicates and is equipped with the second hydraulic fluid port；The first gas port is logical with second gas respectively by three-way pipe
Mouth, third gas port are connected.
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 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.
Preferably, the three-way pipe is Y-shaped three-way pipe, and the three-way pipe is straight tee.
A kind of bushing shell for transformer provided by the present application it is hermetically sealed take oil device, wherein bushing shell for transformer it is hermetically sealed
Oil taking apparatus includes device body, centrum, and centrum is provided with the first hydraulic fluid port, first gas port；The side communicated with the first hydraulic fluid port
Equipped with the second hydraulic fluid port；First gas port is connected with second gas port, third gas port respectively by three-way pipe；Its
In, the first hydraulic fluid port stretches into bushing shell for transformer, and the second hydraulic fluid port is connected with sampler；First gas port leads to bushing shell for transformer
Interior, second gas port, third gas port connect with vacuum pump, nitrogen cylinder respectively；During drawing oil sample；Taking oily process
In, nitrogen cylinder is opened, nitrogen is entered by third gas port in bushing shell for transformer, and definitely normal pressure is formed in casing,
Under positive pressure, oil sample automatically flows into sampler, avoids since oil level decline needs artificial destruction bobbin seal
Problem；During makeup oil, vacuum pump is opened, bushing shell for transformer is vacuumized, form definitely negative pressure in casing, negative
Under pressure effect, oil automatically flows into bushing shell for transformer；I.e. the device ensure that the leakproofness of entire sampling process, realize complete close
Envelope sampling, in sampling process, oxygen and water in air will not enter in bushing shell for transformer, both ensured crude oil in casing just
Beginning character, and the oil sample quality of acquisition is avoided to change, to ensure the normal operation of bushing shell for transformer.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not
The application can be limited.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets the utility model
Embodiment, and for explaining the principles 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,
Other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of hermetically sealed oil taking apparatus structural schematic 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 logical
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 implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The consistent example of some aspects be described in detail in the appended claims, the utility model.
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The consistent example of some aspects be described in detail in the appended claims, the utility model.
Current existing bushing shell for transformer takes the device of oil to destroy the leakproofness of casing, leads to the initial of crude oil in casing
Character is destroyed, and reliability of operation cannot be guaranteed in casing；And the oil sample of acquisition because the effect of oxygen and water occur it is rotten
And be distorted, lead to that the time of day in casing cannot be represented, to influence the judgement to the normal operation of bushing shell for transformer.Therefore
There is an urgent need for a kind of hermetically sealed oil taking apparatus of bushing shell for transformer.
In order to make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings to this
The technical solution of utility model is described in further detail.
A kind of hermetically sealed oil taking apparatus of bushing shell for transformer provided by the utility model, including device body 1 and device sheet
The connected centrum 2 of body 1, wherein device body 1 is provided with the first hydraulic fluid port 4, first gas port 5；One communicated with the first hydraulic fluid port 4
Side is equipped with 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.
In specific implementation process, centrum 2 is silicon rubber centrum；Connect with described device ontology 1 cross-sectional area of contravention of centrum 2 is more than
The other end cross-sectional area of the centrum 2；Centrum 2 is inserted into bushing shell for transformer, the elasticity of centrum itself can play centainly
Ground sealing function；When taking oil, oil sample is flowed into via the first hydraulic fluid port 4, the second hydraulic fluid port 3 in sampler；Oil in transformer set at this time
Position declines, and in order to avoid negative pressure in casing, needs toward supplement oil sample in casing, and when repairing, oil sample is via the second hydraulic fluid port 3, first
In 4 inflow transformer casing of hydraulic fluid port.
In the present embodiment, hangnail connector 8 is equipped at 4 port of the first hydraulic fluid port；In specific implementation process, the first hydraulic fluid port 4
Be connected with transformer oil injection device, transformer oil injection device can the oiling into bushing shell for transformer by hose, by hose
It stretches in bushing shell for transformer, while bushing shell for transformer is vacuumized, be at this time negative pressure, under negative pressure, oil sample in bushing shell for transformer
It is flowed into from trend bushing shell for transformer, when oil sample is supplemented to the oil level before sampling, completes the repairing in bushing shell for transformer, avoid
Oil level, which declines, generates negative pressure, and the setting of hangnail connector 8 can increase hose and the frictional force when contact of the first hydraulic fluid port 4, increase
Leakproofness between hose and the first hydraulic fluid port 4, the oxygen and moisture further avoided in air enter 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 repeat be connected and disconnected from gas passage, the first connector 10 can be connected with rubber tube, when needing to draw oil sample, by rubber tube with take
Sampling device is connected, and sampler can be syringe；Second connector 11, third connector 12 are connect with vacuum pump, nitrogen cylinder respectively；
In order to ensure that bushing shell for transformer is positive pressure when sampling, need to be filled with nitrogen in bushing shell for transformer；In order to ensure transformer when repairing
Casing is negative pressure, needs to vacuumize bushing shell for transformer；Therefore, nitrogen cylinder is opened when sampling, nitrogen is via third connector 12,
In one gas port, 5 inflow transformer casing；Vacuum pump is opened when 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.
In the present embodiment, three-way pipe 9 is Y-shaped three-way pipe, and three-way pipe 9 is straight tee；The setting of straight tee
The stabilization that can ensure gas flow and flow velocity, to realize that bushing shell for transformer takes the stability of oily process.
In the present embodiment, specific operate is：Centrum 2 is plugged in bushing shell for transformer, the second connector 11, third are fast
Quick coupling 12 connects with vacuum pump, nitrogen cylinder respectively；
Vacuum pump is opened, when vacuum degree reaches -0.1MPa, to terminate to vacuumize to vacuumizing in bushing shell for transformer
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 is connected with hose, the second hydraulic fluid port 3 is connected with rubber tube, rubber tube is connected with sampler,
Transformer oil at positive pressure, automatically flows into sampler, completes sampling operation；
Vacuum pump is opened to vacuumizing in bushing shell for transformer the first hydraulic fluid port 4 to be 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 under the action of negative pressure, is filled via repairing automatically
It sets in inflow transformer casing, until oil level restores to oily front position is taken, completes to mend sample operation；
Repetition vacuumizes, inflated with nitrogen operates, 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, a kind of bushing shell for transformer provided by the present application it is hermetically sealed take oil device, wherein bushing shell for transformer it is complete
It includes device body 1, centrum 2 to seal oil taking apparatus, and device body 1 is provided with the first hydraulic fluid port 4, first gas port 5；With the first oil
The side that mouth 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, third gas
Body port 7 is connected；Wherein, the first hydraulic fluid port 4 stretches 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 with vacuum pump, nitrogen cylinder respectively；It is taking
Nitrogen cylinder is opened during oil sample, nitrogen is entered by third gas port 7 in bushing shell for transformer, is formed definitely just in casing
Pressure, under positive pressure, oil sample automatically flows into sampler, avoids since oil level decline needs artificial destruction casing close
The problem of envelope property；During makeup oil, vacuum pump is opened, bushing shell for transformer is vacuumized, forms definitely negative pressure in casing
Power, under negative pressure force effect, oil automatically flows into bushing shell for transformer；I.e. the device ensure that the leakproofness of entire sampling process,
Realize hermetically sealed sampling, in sampling process, oxygen and water in air will not enter in bushing shell for transformer, both ensure in casing
The initial character of crude oil, and the oil sample quality of acquisition is avoided to change, 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 identical, similar part 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 actual relationship or sequences.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that article or equipment including a series of elements include not only those elements, but also
Further include other elements that are not explicitly listed, or further includes for 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 including the element article or
There is also other identical elements in person's equipment.
Those skilled in the art will readily occur to the application after considering specification and putting into practice the disclosure of utility model here
Other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these changes
Type, purposes or adaptive change follow the general principle of the application and include that the application is undocumented in the art
Common knowledge or conventional techniques.The description and examples are only to be considered as illustrative, the true scope and spirit of the application
It is pointed out by the content of claim.
Above-described the application embodiment does not constitute the restriction to the application protection domain.
Claims (5)
1. a kind of hermetically sealed oil taking apparatus 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 with second gas port (6), third gas port (7) respectively by three-way pipe (9)
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. hermetically sealed oil taking apparatus according to claim 1, which is characterized in that the three-way pipe (9) is Y-shaped three-way pipe,
The three-way pipe (9) is straight tee.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820319130.5U CN207832518U (en) | 2018-03-08 | 2018-03-08 | A kind of hermetically sealed oil taking apparatus of bushing shell for transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820319130.5U CN207832518U (en) | 2018-03-08 | 2018-03-08 | A kind of hermetically sealed oil taking apparatus of bushing shell for transformer |
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| CN207832518U true CN207832518U (en) | 2018-09-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195627A (en) * | 2018-03-08 | 2018-06-22 | 云南电网有限责任公司电力科学研究院 | The hermetically sealed oil taking apparatus and method of a kind of bushing shell for transformer |
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2018
- 2018-03-08 CN CN201820319130.5U patent/CN207832518U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195627A (en) * | 2018-03-08 | 2018-06-22 | 云南电网有限责任公司电力科学研究院 | The hermetically sealed oil taking apparatus and method of a kind of bushing shell for transformer |
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