CN104329471A - Multipurpose valve for main transformer sampling - Google Patents
Multipurpose valve for main transformer sampling Download PDFInfo
- Publication number
- CN104329471A CN104329471A CN201410685427.XA CN201410685427A CN104329471A CN 104329471 A CN104329471 A CN 104329471A CN 201410685427 A CN201410685427 A CN 201410685427A CN 104329471 A CN104329471 A CN 104329471A
- Authority
- CN
- China
- Prior art keywords
- valve
- main transformer
- oil
- sealing cover
- end sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a multipurpose valve for main transformer sampling. The multipurpose valve comprises a front-end sealing cover, a tee-joint valve body, a ball, an oil-draining screw and a rear-end sealing cover, wherein the front-end sealing cover is fixedly arranged on the right side of the tee-joint valve body; the multipurpose valve is connected with a sampling valve of a main transformer through the front-end sealing cover; a valve cavity is arranged in the tee-joint valve body; a spring and the ball are arranged in the valve cavity; one end of the spring is resisted against the ball; the other end of the spring is resisted against the oil-draining screw; a threaded section is arranged on the peripheral surface of the left-side part of the tee-joint valve body; an inner threaded section is arranged on a right-side groove of the rear-end sealing cover; the rear-end sealing cover is matched with the threaded section of the left-side part of the tee-joint valve body by virtue of the inner threaded section of the rear-end sealing cover; the oil-draining screw is located in the inner cavity of the rear-end sealing cover. The multipurpose valve for main transformer sampling provided by the invention has the advantages that the problem of oil leakage of a main transformer sampling valve is solved, the multipurpose valve is fit for quick sampling of an on-line monitoring system and the overhauling cost is greatly saved.
Description
Technical field
The present invention 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.
Summary of the invention
The present invention 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 present invention 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 invention 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, beneficial effect of the present invention is embodied in:
Multipurpose valve for main transformer sampling of the present invention, 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 invention, 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 invention, 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 invention.
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 invention will be further described by reference to the accompanying drawings.
Embodiment
See Fig. 1, the multipurpose valve for main transformer sampling of the present invention, 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 invention, 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 present invention 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 invention, 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 invention is directly loaded onto.Every sub-sampling, only needs to open back-end sealing cover of the present invention, 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 present invention has following advantages and good effect:
1, the application of main transformer sampling multipurpose valve of the present invention, 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 invention 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 invention, 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 invention, 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 present invention 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, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention 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 present invention.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 and 2, it is characterized in that, described front shroud (1) is in sleeve shape.
4. the multipurpose valve for main transformer sampling according to claim 1,2 and 3, it is characterized in that, described front end shield (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 |
|---|---|---|---|
| CN201410685427.XA CN104329471A (en) | 2014-11-25 | 2014-11-25 | Multipurpose valve for main transformer sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410685427.XA CN104329471A (en) | 2014-11-25 | 2014-11-25 | Multipurpose valve for main transformer sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104329471A true CN104329471A (en) | 2015-02-04 |
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ID=52404245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410685427.XA Pending CN104329471A (en) | 2014-11-25 | 2014-11-25 | Multipurpose valve for main transformer sampling |
Country Status (1)
| Country | Link |
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| CN (1) | CN104329471A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484482A (en) * | 1982-12-16 | 1984-11-27 | Aeroquip Corporation | Fluid sampling valve |
| CN201464220U (en) * | 2009-06-30 | 2010-05-12 | 河南省中分仪器有限公司 | Insulating oil-sampling valve with multiple sampling ports |
| CN201522388U (en) * | 2009-11-04 | 2010-07-07 | 李军 | Eccentric anti-theft sampling valve |
| CN202166551U (en) * | 2011-07-30 | 2012-03-14 | 昌乐县供电公司 | Clean sampling valve for transformer oil |
| CN202599713U (en) * | 2012-06-05 | 2012-12-12 | 国电南京自动化股份有限公司 | Combined needle-shaped oil extraction valve for on-line monitoring of transformer oil |
| CN102879228A (en) * | 2012-10-29 | 2013-01-16 | 宁波电业局 | Method for sampling oil |
| CN204239770U (en) * | 2014-11-25 | 2015-04-01 | 国家电网公司 | For the multipurpose valve of main transformer sampling |
-
2014
- 2014-11-25 CN CN201410685427.XA patent/CN104329471A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484482A (en) * | 1982-12-16 | 1984-11-27 | Aeroquip Corporation | Fluid sampling valve |
| CN201464220U (en) * | 2009-06-30 | 2010-05-12 | 河南省中分仪器有限公司 | Insulating oil-sampling valve with multiple sampling ports |
| CN201522388U (en) * | 2009-11-04 | 2010-07-07 | 李军 | Eccentric anti-theft sampling valve |
| CN202166551U (en) * | 2011-07-30 | 2012-03-14 | 昌乐县供电公司 | Clean sampling valve for transformer oil |
| CN202599713U (en) * | 2012-06-05 | 2012-12-12 | 国电南京自动化股份有限公司 | Combined needle-shaped oil extraction valve for on-line monitoring of transformer oil |
| CN102879228A (en) * | 2012-10-29 | 2013-01-16 | 宁波电业局 | Method for sampling oil |
| CN204239770U (en) * | 2014-11-25 | 2015-04-01 | 国家电网公司 | For the multipurpose valve of main transformer sampling |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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Application publication date: 20150204 |
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| RJ01 | Rejection of invention patent application after publication |