CN204239770U - For the multipurpose valve of main transformer sampling - Google Patents
For the multipurpose valve of main transformer sampling Download PDFInfo
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- CN204239770U CN204239770U CN201420716028.0U CN201420716028U CN204239770U CN 204239770 U CN204239770 U CN 204239770U CN 201420716028 U CN201420716028 U CN 201420716028U CN 204239770 U CN204239770 U CN 204239770U
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- Prior art keywords
- valve
- main transformer
- oil
- way valve
- sampling
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- 238000005070 sampling Methods 0.000 title claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 238000004587 chromatography analysis Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Housings And Mounting Of Transformers (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of multipurpose valve for main transformer sampling, comprise forward end seal cover, three way valve, hoodle, oil-draining screw, back-end sealing cover; Forward end seal cover is fixedly installed on the right side of three way valve, and multipurpose valve is connected with the sampling cock of main transformer by forward end seal cover; Three way valve inside is provided with valve pocket, is provided with spring and hoodle in valve pocket; One end and the hoodle of spring abut against, and the other end and the oil-draining screw of spring abut against; The outer circumferential face of the left side of three way valve is provided with thread section, and the right groove of back-end sealing cover is provided with internal thread segment, and back-end sealing cover is matched by the thread section of its internal thread segment with three way valve left side, and oil-draining screw is arranged in back-end sealing cover inner chamber.Multipurpose valve for main transformer sampling of the present utility model, have can solve the leakage of oil of main transformer sampling cock problem, be adapted to on-line monitoring system and carry out fast sampling, greatly save the advantage such as recondition expense.
Description
Technical field
The utility model relates to a kind of multipurpose valve for main transformer sampling.
Background technique
Along with the fast development of State Grid Corporation of China's power grid construction, power transformer is one of very important operational outfit of electric power system, and whether very large on electric power netting safe running impact its normal operation is.From working experience in recent years, even cause disaster hidden-trouble, affect main transformer safe and stable operation.Serious threat safe, stable, the economical operation of electric power system.In traditional solution main transformer leakage of oil, Problems existing is needed badly and is effectively solved.Tradition solves in the process of leakage of oil exists three large problems:
1, old-fashioned main transformer oil sample valve is due to design problem, screw for sealing is too short, cannot accomplish effective shutoff, and processes such valve and must put insulating oil in main transformer after having a power failure, processing cost is very high, and affects power network safety operation.
2, the solution of process sampling cock leakage of oil is more original at present, and the way mainly by changing seal ring solves Leakage.And because the sealing ring materials such as rubber are under insulating oil effect, easy aging distortion, can not solve root problem, often process once and occur same problem again soon, cause the phenomenon occurring leakage of oil repeatedly and repeat to change seal ring, affect working efficiency, cause manpower and materials to waste.
3, because present electrical network is to intelligent, interactive development, chromatography online monitoring system for transformer oil, as one of intelligent grid application, can reflect monitoring equipment real time status in time.Main transformer oil sample sampling valve must consider there is similar interface.The similar design and old master disappears, transforms, must expend huge cost.
Model utility content
The utility model is for avoiding the deficiency that exists in above-mentioned prior art, provides a kind of multipurpose valve for main transformer sampling, with can solve the leakage of oil of main transformer sampling cock problem, be adapted to on-line monitoring system and carry out fast sampling.
The utility model be technical solution problem by the following technical solutions.
For the multipurpose valve of main transformer sampling, its structural feature is, comprises forward end seal cover, three way valve, hoodle, oil-draining screw, back-end sealing cover; Described forward end seal cover is fixedly installed on the right side of described three way valve, and multipurpose valve is connected with the sampling cock of main transformer by described forward end seal cover; Described three way valve inside is provided with valve pocket, is provided with spring and hoodle in described valve pocket; One end and the described hoodle of described spring abut against, and the other end and the described oil-draining screw of described spring abut against; The outer circumferential face of the left side of described three way valve is provided with thread section, the right groove of described back-end sealing cover is provided with internal thread segment, described back-end sealing cover is matched by the thread section of its internal thread segment with described three way valve left side, and described oil-draining screw is arranged in described back-end sealing cover inner chamber.
The structural feature of the multipurpose valve for main transformer sampling of the present utility model is also:
Described three way valve is also provided with an on-line checkingi interface; Described on-line checkingi interface is connected with between described valve pocket.
Described forward end seal cover is sleeve shape.
Described forward end seal cover, three way valve, hoodle, oil-draining screw, back-end sealing cover are stainless steel and make.
Compared with the prior art, the utility model beneficial effect is embodied in:
Multipurpose valve for main transformer sampling of the present utility model, comprises forward end seal cover, three way valve, hoodle, oil-draining screw, back-end sealing cover.Be connected with the sampling cock of main transformer by forward end seal cover.After being screwed out left by oil-draining screw, the insulating oil in main transformer flows out from described on-line checkingi interface after backing down hoodle, by externally connected pipe, insulating oil is introduced into chromatography online monitoring system for transformer oil and can realizes automatic sampling.Multipurpose valve for main transformer sampling of the present utility model, has double seal, can be used for the aspect multifunctional ports such as insulating oil chromatogram on-line checkingi, eliminate safe hidden trouble three zones.Adopt hoodle, screw and three way valve, be contained on main transformer sampling valve.Although so also screw by valve bonnet and push down seal ring.But, in the front of oil sample valve, also have one fuel outlet valve to check on, form twice defence line, play help seal action.Solve the hidden danger of main transformer possibility leakage of oil, reduce equipment oil mass, thus greatly save the cost of raw material, make main transformer can not cause unnecessary maintenance because of seepage, thus greatly save recondition expense.
Multipurpose valve for main transformer sampling of the present utility model, have can solve the leakage of oil of main transformer sampling cock problem, be adapted to on-line monitoring system and carry out fast sampling, greatly save the advantage such as recondition expense.
Accompanying drawing explanation
Fig. 1 is the structural representation of the multipurpose valve for main transformer sampling of the present utility model.
Label in Fig. 1 is: 1 forward end seal cover, 2 three way valvies, 3 hoodles, 4 oil-draining screws, 5 back-end sealing covers, 6 on-line checkingi interfaces, 7 springs.
Below by way of embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Embodiment
See Fig. 1, the multipurpose valve for main transformer sampling of the present utility model, comprises forward end seal cover 1, three way valve 2, hoodle 3, oil-draining screw 4, back-end sealing cover 5; Described forward end seal cover 1 is fixedly installed on the right side of described three way valve 2, and multipurpose valve is connected with the sampling cock of main transformer by described forward end seal cover 1; Described three way valve 2 inside is provided with valve pocket, is provided with spring 7 and hoodle 3 in described valve pocket; One end and the described hoodle 3 of described spring 7 abut against, and the other end and the described oil-draining screw 4 of described spring 7 abut against; The outer circumferential face of the left side of described three way valve 2 is provided with thread section, the right groove of described back-end sealing cover 5 is provided with internal thread segment, described back-end sealing cover 5 is matched by the thread section of its internal thread segment with described three way valve 2 left side, and described oil-draining screw 4 is arranged in described back-end sealing cover 5 inner chamber.
Described three way valve 2 is also provided with an on-line checkingi interface 6; Described on-line checkingi interface 6 is connected with between described valve pocket.
Described forward end seal cover 1 is in sleeve shape.
Described forward end seal cover 1, three way valve 2, hoodle 3, oil-draining screw 4, back-end sealing cover 5 are stainless steel and make.
As Fig. 1, the multipurpose valve for main transformer sampling of the present utility model, is applied to transformer sampling.Adopting the parts such as front end hoodle, screw and three way valve, by being with the front end valve bonnet of thread can directly be contained on main transformer sampling valve, with the intelligent apparatus interfaces such as oil chromatography on-line checkingi directly can be installed, on-line checkingi needs can be met.Can be stretched by control spring by the left-handed distance of oil-draining screw, thus hoodle can be controlled by displacement distance left, and then controlled liquefaction stream size.
Front end valve bonnet, with thread, can be directly installed on main transformer sampling valve.The on-line checkingi interface of three way valve, can directly install the intelligent apparatus interfaces such as oil chromatography on-line checkingi.
The utility model adopts hoodle, oil-draining screw and three way valve, is contained on old fuel outlet valve.Although so also screw by valve bonnet and push down seal ring.But, in the front of oil sample valve of the present utility model, also have one fuel outlet valve to check on, form twice defence line, play help seal action, have double seal, can be used for the aspect multifunctional ports such as insulating oil chromatogram on-line checkingi, eliminate safe hidden trouble three zones.
When running into main transformer sampling valve and having leakage of oil to need to process, only need to fall under originally sampling valve, open fuel outlet valve, then multipurpose sampling valve of the present utility model is directly loaded onto.Every sub-sampling, only needs to open the utility model back-end sealing cover, just easily can complete oil sample sampling work later.If need to install main transformer oil chromatography on-line detecting system additional, another exports only to need that in-line is accessed three way valve.
The utility model has following advantages and good effect:
1, the application of main transformer sampling multipurpose valve of the present utility model, modifiedly can remove the original replacing seal ring of process main transformer sampling valve leakage of oil, install the methods such as unsintered tape additional, solve the hidden danger of possibility leakage of oil, reduction equipment oil mass, thus greatly save the cost of raw material, make main transformer can not cause unnecessary maintenance because of seepage, thus greatly save recondition expense.
2, the application of main transformer of the present utility model sampling multipurpose valve, modifiedly can go the leakage of oil of process main transformer sampling valve to have a power failure and drain the oil, and easily can change at not power-off condition.A large amount of saving human cost
3, the application of main transformer sampling multipurpose valve of the present utility model, can take into account the purposes of the intelligent grid application such as chromatography online monitoring system for transformer oil, need not transform original sampling valve again, save Plant reconstruction plant modernization cost.
4, the application of main transformer sampling multipurpose valve of the present utility model, utilizes the front at oil sample valve, also has one fuel outlet valve to check on, form twice defence line, play help seal action, guarantee equipment can not cause disaster hidden-trouble because of oil sample seepage, strengthens safe operation of electric network.
The utility model can solve the hidden danger of main transformer possibility leakage of oil, reduces equipment oil mass, thus greatly saves the cost of raw material, make main transformer can not cause unnecessary maintenance because of seepage, thus greatly save recondition expense.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any reference character in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technological scheme in each embodiment also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (4)
1., for the multipurpose valve of main transformer sampling, it is characterized in that, comprise forward end seal cover (1), three way valve (2), hoodle (3), oil-draining screw (4), back-end sealing cover (5); Described forward end seal cover (1) is fixedly installed on the right side of described three way valve (2), and multipurpose valve is connected with the sampling cock of main transformer by described forward end seal cover (1); Described three way valve (2) inside is provided with valve pocket, is provided with spring (7) and hoodle (3) in described valve pocket; One end and the described hoodle (3) of described spring (7) abut against, and the other end and the described oil-draining screw (4) of described spring (7) abut against; The outer circumferential face of the left side of described three way valve (2) is provided with thread section, the right groove of described back-end sealing cover (5) is provided with internal thread segment, described back-end sealing cover (5) is matched by the thread section of its internal thread segment with described three way valve (2) left side, and described oil-draining screw (4) is arranged in described back-end sealing cover (5) inner chamber.
2. the multipurpose valve for main transformer sampling according to claim 1, is characterized in that, described three way valve (2) is also provided with an on-line checkingi interface (6); Described on-line checkingi interface (6) is connected with between described valve pocket.
3. the multipurpose valve for main transformer sampling according to claim 1, it is characterized in that, described forward end seal cover (1) is in sleeve shape.
4. the multipurpose valve for main transformer sampling according to claim 1, it is characterized in that, described forward end seal cover (1), three way valve (2), hoodle (3), oil-draining screw (4), back-end sealing cover (5) are stainless steel and make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716028.0U CN204239770U (en) | 2014-11-25 | 2014-11-25 | For the multipurpose valve of main transformer sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716028.0U CN204239770U (en) | 2014-11-25 | 2014-11-25 | For the multipurpose valve of main transformer sampling |
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| Publication Number | Publication Date |
|---|---|
| CN204239770U true CN204239770U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420716028.0U Active CN204239770U (en) | 2014-11-25 | 2014-11-25 | For the multipurpose valve of main transformer sampling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329471A (en) * | 2014-11-25 | 2015-02-04 | 国家电网公司 | Multipurpose valve for main transformer sampling |
| CN108194720A (en) * | 2018-03-01 | 2018-06-22 | 国网河南省电力公司电力科学研究院 | A kind of transformer or reactor are with taking oily transit joint |
-
2014
- 2014-11-25 CN CN201420716028.0U patent/CN204239770U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329471A (en) * | 2014-11-25 | 2015-02-04 | 国家电网公司 | Multipurpose valve for main transformer sampling |
| CN108194720A (en) * | 2018-03-01 | 2018-06-22 | 国网河南省电力公司电力科学研究院 | A kind of transformer or reactor are with taking oily transit joint |
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