CN104677683A - Oil-immersed transformer type oil taking valve - Google Patents
Oil-immersed transformer type oil taking valve Download PDFInfo
- Publication number
- CN104677683A CN104677683A CN201510077718.5A CN201510077718A CN104677683A CN 104677683 A CN104677683 A CN 104677683A CN 201510077718 A CN201510077718 A CN 201510077718A CN 104677683 A CN104677683 A CN 104677683A
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- valve body
- oil
- valve
- spool
- sealing
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Abstract
The invention discloses an oil-immersed transformer type oil taking valve. The oil taking valve comprises a valve body and a valve core, and is characterized in that the valve body is provided with an oil feeding channel, internal threads and a round platform; the valve core is provided with external threads, an oil taking channel and a limiting step; the external threads of the valve core are rotatably connected with the internal threads of the valve body to form a closed inner cavity which is communicated with the oil taking channel and the oil feeding channel; a sealing gasket is arranged at the combined part of the oil taking channel of the valve body and the inner cavity; when the valve core is screwed with the valve body, the inner cavity and the oil feeding channel are separated by the sealing gasket; the limiting step tightly supports the valve body. The oil taking valve also comprises a pressing plate, wherein the valve body is provided with the round platform which is tightly and fixedly connected with a fixed ring by bolts through the pressing plate. The oil taking valve disclosed by the invention has the advantages that the structure of the valve body and the fixed ring is changed, the pressing plate is added, and the device is tightly fixed by using the plurality of bolts through the pressing plate, so that the easy looseness in the oil-taking process is avoided; the limiting and sealing structure is added onto the valve core, so that the wear of a sealing ring is relieved, the sealing also can not be damaged even though the operation is frequent, and the sealing performance of the valve is greatly improved.
Description
Technical field
The present invention relates to electric system oil immersion type mutual-inductor class oil sealed sampling device, particularly a kind of oil immersion type mutual-inductor gets fuel tap.
Background technology
Mutual inductor is one of indispensable visual plant in electric system power transmission and distribution project, according to the difference of heat eliminating medium, is divided into oil immersion type mutual-inductor, dry type mutual inductor and sulfur hexafluoride (SF
6) gas is the gas-insulated transformer of major insulation.Oil immersion type mutual-inductor adopts oil-paper combination insulation, transformer oil is as insulating medium, need to carry out regular oil sample detection in equipment use process, the short form test of oil, water trace analysis, electrical test, oil dissolved gas stratographic analysis, as source book data.
Tradition is got fuel tap and is generally adopted singe screw connecting mode and equipment to be assembled together, and getting, easy generation in oily process is loosening, there is leakage of oil hidden danger; When valve body is connected with spool, excessively causes sealed ring deformation, damage because of stressed, reduce the reliability of hermetically-sealed construction, easily occur causing leaking oil condition.
Summary of the invention
The object of the invention is to the shortcoming for above-mentioned prior art, and provide a kind of sealing reliability higher, not easily there is seepage, and install and use oil immersion type mutual-inductor easily and get fuel tap.
Object of the present invention is realized by following technical scheme:
A kind of oil immersion type mutual-inductor gets fuel tap, comprises valve body and spool, unlike the prior art:
Valve body is provided with oil inlet passage, internal thread and round platform;
Spool is provided with external thread, gets oily passage and limited step;
The sealed internal chamber formed after the external thread of spool spins with valve body internal thread with get oily passage, oil inlet passage communicates, the joint portion of valve body oil inlet passage and inner chamber is provided with sealing gasket, when spool and valve body screw, sealing gasket cuts off inner chamber and oil inlet passage, and limited step holds out against valve body.
Also comprise bonnet, bonnet and valve body spin, and spool is positioned at bonnet.
Also comprise pressing plate, valve body is provided with round platform, and round platform is fastenedly connected by pressing plate bolt and set collar.
The described hydraulic fluid port of getting getting oily passage is provided with sealing cap.
By controlling the duty of the severity control spool end sealing pad that spool screws in, thus application valve body oil inlet passage and spool get the logical resistance of oily passage, play valve function.During sampling, oil sample enters by set collar, oil inlet passage the hydraulic fluid port of getting getting oily passage and flows out, be connected with outer sampler by connecing oil nozzle again, do not contact with air in the whole process that draws oil sample, ensure that the oil sample taken out is consistent with the inner oil sample of mutual inductor, carry out the major insulation situation of stratographic analysis energy actual response mutual inductor.When spool is tightened, the sealing gasket power that is squeezed cuts off oil inlet passage and inner chamber, and spool limited step is just spacing to sealing gasket, is unlikely to extrude sealing gasket transition.
Originally advantage or the beneficial effect of fuel tap is got:
1. change the structure of valve body and set collar, add pressing plate, by pressing plate more than one piece bolt clamp device, avoid loosening getting in oily process easily to produce;
2. spool adds limit sealing structure, slow down the wearing and tearing of O-ring seal, even if frequent operation also can not destroy sealing, drastically increases the sealing property of equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment;
Fig. 2 is the structural representation of spool in Fig. 1;
Fig. 3 is the structural representation of valve body in Fig. 1.
In figure, 1. bonnet 2. spool 2-1. hexagonal (hexagon)nut 2-2. limited step 2-3. external thread 2-4. gets oily passage 2-5. plug 3. valve body 3-1. internal thread 3-2. oil inlet passage 3-3. round platform 4. pressing plate 5. set collar 6. sealing cap 7. first O-ring seal 8. second O-ring seal 9. sealing gasket 10. bolt 11. the 3rd O-ring seal 12. inner chamber.
Embodiment
Below in conjunction with drawings and Examples, content of the present invention is further elaborated, but is not limitation of the invention.
Embodiment:
With reference to Fig. 1-Fig. 3, a kind of oil immersion type mutual-inductor gets fuel tap, comprises valve body 3 and spool 2,
Valve body 3 is provided with oil inlet passage 3-2, internal thread 3-1 and round platform 3-3;
Spool 2 is provided with external thread 2-3, gets oily passage 2-4 and limited step 2-2;
The sealed internal chamber 12 formed after the external thread 2-3 of spool 2 spins with valve body 3 internal thread 3-1 with get oily passage 2-4, oil inlet passage 3-2 communicates, the joint portion of valve body oil inlet passage 3-2 and inner chamber 12 is provided with sealing gasket 9, when spool 2 and valve body 3 screw, sealing gasket 9 cuts off inner chamber 12 and oil inlet passage 3-2, and limited step 2-2 holds out against valve body 3.
Also comprise bonnet 1, bonnet 1 and valve body 3 spin, and spool 2 is positioned at bonnet 1, for the protection of spool 2.
Also comprise pressing plate 4, valve body 3 is provided with round platform 3-3, and round platform 3-3 is fastenedly connected by pressing plate 4 bolt 10 and set collar 5.
The described hydraulic fluid port of getting getting oily passage 2-4 is provided with sealing cap 6.
Particularly, the front end of spool 2 is provided with plug 2-5 corresponding with the oil-out of oil inlet passage 3-2, sealing gasket 9 is set in plug 2-5 periphery, spool 2 is provided with hexagonal (hexagon)nut 2-1 near limited step 2-2 place, so that turn rotary spool 2, by controlling the location status of the severity control spool 2 end sealing pad 9 that spool 2 screws in, thus controlling the logical resistance of oil inlet passage 3-2 and inner chamber 12, playing and opening or closing valve function.
For obtaining better sealing effectiveness, be provided with the first O-ring seal 7 near valve body 3, spool 2 screw-on place, to make inner chamber 12 in sealing state; Being provided with the second O-ring seal 8 with valve body 3 place of being abutted against inside bonnet 1, is sealing state to make the inner chamber of bonnet 1; Being provided with the 3rd O-ring seal 11 between valve body 3 and set collar 5, is state of isolation to make oil inlet passage and external environment condition.
Bonnet 1 is turned on when oil immersion type mutual-inductor samples, take off sealing cap 6, be inserted in and get oil pipe, spool 2 is unscrewed by turning hexagonal (hexagon)nut 2-1, sealing gasket 9 unclamps, inner chamber 12 communicates with oil inlet passage 3-2, the oily passage 2-4 that gets that oil sample is entered in spool by set collar 5, valve body oil inlet passage 3-2 flows out, be connected with outer sampler by connecing oil nozzle again, do not contact with air in the whole process that draws oil sample, ensure that the oil sample taken out is consistent with the inner oil sample of mutual inductor, carry out the major insulation situation of stratographic analysis energy actual response mutual inductor.Sample complete when tightening spool 2, sealing gasket 9 power that is squeezed cuts off oil inlet passage 3-2 and inner chamber 12, and spool limited step 2-2 is just spacing to sealing gasket 9, is unlikely to extrude sealing gasket 9 transition.
Claims (4)
1. oil immersion type mutual-inductor gets a fuel tap, comprises valve body and spool, it is characterized in that:
Valve body is provided with oil inlet passage, internal thread and round platform;
Spool is provided with external thread, gets oily passage and limited step;
The sealed internal chamber formed after the external thread of spool spins with valve body internal thread with get oily passage, oil inlet passage communicates, the joint portion of valve body oil inlet passage and inner chamber is provided with sealing gasket, when spool and valve body screw, sealing gasket cuts off inner chamber and oil inlet passage, and limited step holds out against valve body.
2. oil immersion type mutual-inductor according to claim 1 gets fuel tap, it is characterized in that: also comprise bonnet, and bonnet and valve body spin, and spool is positioned at bonnet.
3. oil immersion type mutual-inductor according to claim 1 gets fuel tap, it is characterized in that: also comprise pressing plate, and valve body is provided with round platform, and round platform is fastenedly connected by pressing plate bolt and set collar.
4. oil immersion type mutual-inductor according to claim 1 gets fuel tap, it is characterized in that: described in get oily passage hydraulic fluid port of getting be provided with sealing cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510077718.5A CN104677683A (en) | 2015-02-13 | 2015-02-13 | Oil-immersed transformer type oil taking valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510077718.5A CN104677683A (en) | 2015-02-13 | 2015-02-13 | Oil-immersed transformer type oil taking valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104677683A true CN104677683A (en) | 2015-06-03 |
Family
ID=53313035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510077718.5A Withdrawn CN104677683A (en) | 2015-02-13 | 2015-02-13 | Oil-immersed transformer type oil taking valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104677683A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091331A (en) * | 2017-05-27 | 2017-08-25 | 桂林电力电容器有限责任公司 | A kind of oil-filled power equipment takes fuel tap |
| CN110530672A (en) * | 2019-08-30 | 2019-12-03 | 湖南华电云通电力技术有限公司 | General oil sealed sampling device |
| CN110530673A (en) * | 2019-08-30 | 2019-12-03 | 湖南华电云通电力技术有限公司 | Mutual inductor takes oily tooling and the transformer with it |
-
2015
- 2015-02-13 CN CN201510077718.5A patent/CN104677683A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091331A (en) * | 2017-05-27 | 2017-08-25 | 桂林电力电容器有限责任公司 | A kind of oil-filled power equipment takes fuel tap |
| CN110530672A (en) * | 2019-08-30 | 2019-12-03 | 湖南华电云通电力技术有限公司 | General oil sealed sampling device |
| CN110530673A (en) * | 2019-08-30 | 2019-12-03 | 湖南华电云通电力技术有限公司 | Mutual inductor takes oily tooling and the transformer with it |
| CN110530673B (en) * | 2019-08-30 | 2024-01-30 | 湖南华电云通电力技术有限公司 | Transformer oil extraction tool and transformer with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150603 |