CN202599713U - Combined needle-shaped oil extraction valve for on-line monitoring of transformer oil - Google Patents
Combined needle-shaped oil extraction valve for on-line monitoring of transformer oil Download PDFInfo
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- CN202599713U CN202599713U CN 201220262333 CN201220262333U CN202599713U CN 202599713 U CN202599713 U CN 202599713U CN 201220262333 CN201220262333 CN 201220262333 CN 201220262333 U CN201220262333 U CN 201220262333U CN 202599713 U CN202599713 U CN 202599713U
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- aciculiform
- fuel tap
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- transformer oil
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Abstract
The utility model discloses a combined needle-shaped oil extraction valve for on-line monitoring of transformer oil. The combined needle-shaped oil extraction valve for the on-line monitoring of the transformer oil comprises an adapter, an offline analyzing needle-shaped oil extraction valve and an on-line apparatus needle-shaped oil extraction valve, and is characterized in that one end of the adapter is connected with an outer thread of the transformer body oil extraction valve through an inner thread, the offline analyzing needle-shaped oil extraction valve comprises a first valve body, an offline oil extraction channel and an oil extraction channel of the on-line apparatus needle-shaped oil extraction valve are arranged in the first valve body, and the on-line apparatus needle-shaped oil extraction valve is arranged at the exit of the oil extraction channel of the on-line apparatus needle-shaped oil extraction valve of the offline analyzing needle-shaped oil extraction valve; the on-line apparatus needle-shaped oil extraction valve comprises a second valve body, the second valve body and a solid valve core are plunger and barrel assemblies, and the solid valve core is provided with an outer thread, and is matched with the inner thread on the inner channel of the second valve body; and the front end of the solid valve core is a cone body, and the rear end of the solid valve core is a cylinder. According to the combined needle-shaped oil extraction valve for the on-line monitoring of transformer oil, the mutual noninterference of the offline analyzing oil extraction and on-line apparatus oil extraction can be realized.
Description
Technical field
The utility model relates to power equipment manufacturing technology field, the particularly on-Line Monitor Device of the oil-immersed type power equipment special service valve that draws oil sample.
Background technology
The component of transformer oil dissolved gas and content can reflect the degree of the apparatus insulated aging or fault of oil-immersed type power to a certain extent, can be used as the electric unusual characteristic quantity of reflection electrical equipment.Through the fault signature gas that dissolves in the on-line monitoring transformer oil; Can realize on-line monitoring, be convenient to the operation conditions of the more effective timely grasp oil-immersed type power equipment of operation department, find and follow the tracks of the latency fault that oil-immersed type power equipment exists oil-immersed type power device interior fault; For carrying out the status of electric power maintenance strong support is provided; Help improving the safety of electric power, promote the intelligent grid construction, bring huge economic and social benefit to society.
At present, State Grid Corporation of China is actively pushing forward and is implementing the intelligent grid construction, has issued serial relevant criterion such as comprising " transformer oil dissolved gas on-Line Monitor Device technical manual ".Current; Adopt transformer oil very many as the power equipment of insulating medium; Mainly comprise oil immersed type mutual inductor, transformer, isolating switch etc., when the said equipment being carried out the analysis of transformer oil chromatographic analysis and micro-water content, will inevitably draw oil sample from the hydraulic fluid port of getting of the said equipment.
And the supporting fuel tap of getting of power equipment is of all kinds at present, has following shortcoming: 1) when sampling, transformer oil can be along screw thread, and oil impregnate is not easy Control Flow outward.2) the supporting fuel tap structural design of getting that has is undesirable, gets in the oily process, and oil sample can contact with air.Transformer oil off-line stratographic analysis testing requirements sampling sealing, transformer oil can not contact with air, does not therefore meet sampling requirement.3) get in the oily process, dismounting causes the encapsulant oxidation repeatedly, reduces serviceable life.
The utility model content
The purpose of the utility model is to above-mentioned shortcoming; Sealing principle and structure to the valve that draws oil sample are improved; In transformer oil on-line monitoring process, but improve its sealing reliability, the difficult seepage free adjustment flow that takes place, promptly can be used for the off-line stratographic analysis and draw oil sample; Do not influence the transformer oil on-Line Monitor Device again and get oil, and easy to install, reliable.
In order to achieve the above object, the utility model has been taked following technical scheme:
A kind of transformer oil on-line monitoring combined type aciculiform is got fuel tap, comprises that X-over, off-line analysis aciculiform are got fuel tap and on-line equipment aciculiform is got fuel tap, it is characterized in that:
The external thread that said X-over one end is got fuel tap through internal thread and transformer body is connected, and the other end of X-over is connected with first valve body that off-line analysis aciculiform is got fuel tap through the sealing taper thread;
Said off-line analysis aciculiform is got fuel tap and is comprised first valve body, in first valve body, is provided with off-line and gets oily passage and on-line equipment aciculiform and get fuel tap and get oily passage, and hollow valve core is arranged at off-line and gets in the oily passage; First valve body and hollow valve core are plunger matching parts; Hollow valve core is provided with external thread, and said external thread matches with internal thread on first valve channel, and the hollow valve core front end is a cone; The rear end is a right cylinder; The conical surface of said cone and the first valve body surface of contact rear end are disposed radially a radial direction through hole, are provided with an axially extending bore in hollow valve core right cylinder inside, and said axially extending bore is connected with radial direction through hole;
Said on-line equipment aciculiform is got fuel tap and is arranged at off-line analysis aciculiform and gets the on-line equipment aciculiform of fuel tap and get the exit that fuel tap is got oily passage; On-line equipment aciculiform is got fuel tap and is comprised second valve body; Second valve body and solid spool are plunger matching parts, and solid spool is provided with external thread and matches with internal thread on the second valve inner passage; Solid spool front end is a cone, and the rear end is a right cylinder.
Aforesaid transformer oil on-line monitoring combined type aciculiform is got fuel tap, it is characterized in that: between the hollow valve core and first valve body, be provided with seal member one.
Aforesaid transformer oil on-line monitoring combined type aciculiform is got fuel tap, and it is characterized in that: said seal member one comprises metal washer and O-ring seal, and the alternate layout with O-ring seal of metal washer.
Aforesaid transformer oil on-line monitoring combined type aciculiform is got fuel tap, it is characterized in that: first set nut passes hollow valve core and matches with internal thread on the first valve inner passage through screw thread, and first set nut locking back fits with seal member one.
Aforesaid transformer oil on-line monitoring combined type aciculiform is got fuel tap, it is characterized in that: first head protector installs O-ring seal additional and links to each other with first valve body through internal thread.
Aforesaid transformer oil on-line monitoring combined type aciculiform is got fuel tap, it is characterized in that: between the solid spool and second valve body, be provided with seal member two.
Aforesaid transformer oil on-line monitoring combined type aciculiform is got fuel tap, and it is characterized in that: said seal member two comprises metal washer and O-ring seal, and the alternate layout with O-ring seal of metal washer.
Aforesaid transformer oil on-line monitoring combined type aciculiform is got fuel tap, it is characterized in that: second set nut passes solid spool and matches with internal thread on the second valve inner passage through screw thread, and second set nut locking back fits with seal member two.
Aforesaid transformer oil on-line monitoring combined type aciculiform is got fuel tap, it is characterized in that: second head protector installs O-ring seal additional and links to each other with second valve body through internal thread.
The beneficial effect that the utility model reached:
1) combined type both can be used for off-line stratographic analysis sampling, also can be used for the sampling of transformer oil on-Line Monitor Device simultaneously.
2) employing is multi-sealed, good sealing effect, and reliability is high, is difficult for taking place transformer oil and leaks.
3) scalable flow, easy and simple to handle, safety.
4) encapsulant adopts teflon, fluororubber, good sealing effect, oil resistant better effects if, longer service life.Be applicable to the extensive installation and the use of the transformer oil on-Line Monitor Device of oil-immersed type power equipment.
Description of drawings
Fig. 1 the utility model structural representation;
Fig. 2 X-over structural representation;
Fig. 3 off-line analysis aciculiform is got the fuel tap structural representation;
Fig. 4 on-line equipment aciculiform is got the fuel tap structural representation.
Embodiment
In conjunction with accompanying drawing the utility model is further described, shown in Fig. 1-4, the box-like aciculiform of a kind of transformer oil on-line monitoring dedicated set is got fuel tap, comprises that X-over, off-line analysis aciculiform are got fuel tap, on-line equipment aciculiform is got fuel tap.
Off-line analysis aciculiform is got fuel tap and is comprised first valve body 3, hollow valve core 4, metal washer 1, O-ring seal 1, first set nut 71 and first head protector 101; Off-line analysis aciculiform is got fuel tap first valve body 3 and is provided with off-line and gets oily passage and on-line equipment aciculiform and get fuel tap and get oily passage; First valve body 3 is a plunger matching parts with hollow valve core 4, and hollow valve core 4 is provided with external thread and can matches with the internal thread on first valve body, 3 passages; Hollow valve core 4 front ends are cone, and the rear end is a right cylinder, and hollow valve core 4 cones and first valve body, 3 surface of contact rear ends have been disposed radially radial direction through hole; Be provided with an axially extending bore 42 in hollow valve core right cylinder inside, said axially extending bore 42 is connected with radial direction through hole 41, and radial direction through hole 41 is got oilhole as off-line; The operator can realize that off-line gets open and close and the adjusting of flow of oil through rotation hollow valve core 4; When precession hollow valve core 4, oily flow diminishes gradually, until hollow valve core 4 conical surfaces with get oily passage and fit airtight fully; The oil flow is 0, and valve cuts out; Off-line analysis aciculiform is got fuel tap and is adopted multi-sealed; Metal washer 51 and O-ring seal 61 alternate repeated arrangement are on spool 4; Can according to the sealing increase in demand with reduce metal washer 51, O-ring seal 61 quantity, make wholely get the fuel tap good sealing effect, good reliability is difficult for leaking; First set nut 71 passes hollow valve core 4, and the external thread of set nut 7 matches with internal thread on first valve body, 3 inner passages, and exerting pressure to the O-ring seal parts through first set nut reaches sealing effectiveness; First head protector 10 installs O-ring seal additional and cooperates with first valve body 3 through internal thread, can effectively stop air to get into first valve body 3.To get the fuel tap aperture design is Φ 4, and Control Flow guarantees that the apparatus body transformer oil can not cause having mobile because of drawing oil sample and generation static easily.Sampling has realized airtight drawing oil sample, and satisfies the requirement of drawing oil sample.
On-line analysis aciculiform is got fuel tap and is comprised second valve body 8, solid spool 9, metal washer 2 52, O-ring seal 2 62, second set nut 7 and second head protector 102.On-line equipment aciculiform is got fuel tap second valve body 8 and is axially got fuel tap first valve body 3 with off-line analysis aciculiform and be connected through the sealing taper thread, and second valve body 8 radially is reserved in line apparatus and gets oilhole; Second valve body 8 and second spool 9 are plunger matching parts, and second spool 9 is provided with external thread and can matches with the internal thread on second valve body, 8 passages; Second spool, 9 front ends are taper, and the rear end is cylindrical.The operator can realize online open and close and the adjusting of flow of getting oil through rotating second spool 9, and when precession second spool 9, oily flow diminishes gradually, fits airtightly until second spool, 9 conical surfaces fully with getting oily passage, and oily flow is 0, and valve cuts out; On-line analysis aciculiform is got fuel tap and is adopted multi-sealed; Metal washer 2 52, O-ring seal 2 62 alternate repeated arrangement are on second spool 9; Can according to the sealing increase in demand with reduce metal washer 2 52, O-ring seal 2 62 quantity, make wholely get the fuel tap good sealing effect, good reliability is difficult for leaking; Second set nut 72 passes the external thread of second spool, 9, the second set nuts 72 and matches with internal thread on second valve body, 8 passages, and exerting pressure to O-ring seal through second set nut 7 reaches sealing effectiveness; Second head protector 10 installs O-ring seal additional and cooperates with second valve body 8 through internal thread, can effectively stop air to get into second valve body 8.To get the fuel tap aperture design is Φ 4, and Control Flow guarantees that the apparatus body transformer oil can not cause having mobile because of drawing oil sample and generation static easily.Sampling has realized airtight drawing oil sample, and satisfies the requirement of drawing oil sample.
Below disclose the utility model with preferred embodiment, so it is not in order to restriction the utility model, and all employings are equal to replacement or the technical scheme that obtained of equivalent transformation mode, all drop within the protection domain of the utility model.
Claims (9)
1. a transformer oil on-line monitoring combined type aciculiform is got fuel tap, comprises that X-over, off-line analysis aciculiform are got fuel tap and on-line equipment aciculiform is got fuel tap, it is characterized in that:
The external thread that said X-over (2) one ends are got fuel tap through internal thread and transformer body is connected, and the other end of X-over is connected with first valve body that off-line analysis aciculiform is got fuel tap through the sealing taper thread;
Said off-line analysis aciculiform is got fuel tap and is comprised first valve body (3), in first valve body (3), is provided with off-line and gets oily passage and on-line equipment aciculiform and get fuel tap and get oily passage, and hollow valve core (4) is arranged at off-line and gets in the oily passage; First valve body (3) and hollow valve core (4) are plunger matching parts; Hollow valve core (4) is provided with external thread, and said external thread matches with internal thread on first valve channel, and the hollow valve core front end is a cone; The rear end is a right cylinder; The conical surface of said cone and the first valve body surface of contact rear end are disposed radially a radial direction through hole (41), are provided with an axially extending bore (42) in hollow valve core right cylinder inside, and said axially extending bore (42) is connected with radial direction through hole (41);
Said on-line equipment aciculiform is got fuel tap and is arranged at off-line analysis aciculiform and gets the on-line equipment aciculiform of fuel tap and get the exit that fuel tap is got oily passage; On-line equipment aciculiform is got fuel tap and is comprised second valve body (8); Second valve body (8) and solid spool (9) are plunger matching parts, and solid spool (9) is provided with external thread and matches with internal thread on second valve body (8) inner passage; Solid spool 9 front ends are cone, and the rear end is a right cylinder.
2. transformer oil on-line monitoring combined type aciculiform according to claim 1 is got fuel tap, it is characterized in that: between hollow valve core and first valve body (3), be provided with seal member one.
3. transformer oil on-line monitoring combined type aciculiform according to claim 2 is got fuel tap, and it is characterized in that: said seal member one comprises metal washer and O-ring seal, and the alternate layout with O-ring seal of metal washer.
4. transformer oil on-line monitoring combined type aciculiform according to claim 2 is got fuel tap; It is characterized in that: first set nut (71) passes hollow valve core (4) and matches with internal thread on first valve body (3) inner passage through screw thread, the locking of first set nut afterwards and seal member one fits.
5. transformer oil on-line monitoring combined type aciculiform according to claim 1 is got fuel tap, it is characterized in that: first head protector (101) installs O-ring seal additional and links to each other with first valve body (3) through internal thread.
6. transformer oil on-line monitoring combined type aciculiform according to claim 1 is got fuel tap, it is characterized in that: between solid spool (9) and second valve body (8), be provided with seal member two.
7. transformer oil on-line monitoring combined type aciculiform according to claim 6 is got fuel tap, and it is characterized in that: said seal member two comprises metal washer and O-ring seal, and the alternate layout with O-ring seal of metal washer.
8. transformer oil on-line monitoring combined type aciculiform according to claim 6 is got fuel tap; It is characterized in that: second set nut (72) passes solid spool (9) and matches with internal thread on second valve body (8) inner passage through screw thread, the locking of second set nut afterwards and seal member two fits.
9. transformer oil on-line monitoring combined type aciculiform according to claim 1 is got fuel tap, it is characterized in that: second head protector (102) installs O-ring seal additional and links to each other with second valve body (8) through internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220262333 CN202599713U (en) | 2012-06-05 | 2012-06-05 | Combined needle-shaped oil extraction valve for on-line monitoring of transformer oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220262333 CN202599713U (en) | 2012-06-05 | 2012-06-05 | Combined needle-shaped oil extraction valve for on-line monitoring of transformer oil |
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| Publication Number | Publication Date |
|---|---|
| CN202599713U true CN202599713U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220262333 Expired - Lifetime CN202599713U (en) | 2012-06-05 | 2012-06-05 | Combined needle-shaped oil extraction valve for on-line monitoring of transformer oil |
Country Status (1)
| Country | Link |
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| CN (1) | CN202599713U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047423A (en) * | 2012-12-20 | 2013-04-17 | 南车株洲电机有限公司 | Sampling device of transformer |
| CN104329471A (en) * | 2014-11-25 | 2015-02-04 | 国家电网公司 | Multipurpose valve for main transformer sampling |
| 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 |
| CN114414302A (en) * | 2021-12-03 | 2022-04-29 | 国网山西省电力公司超高压变电分公司 | Transformer oil taking device with replaceable interface |
-
2012
- 2012-06-05 CN CN 201220262333 patent/CN202599713U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047423A (en) * | 2012-12-20 | 2013-04-17 | 南车株洲电机有限公司 | Sampling device of transformer |
| CN103047423B (en) * | 2012-12-20 | 2015-09-09 | 南车株洲电机有限公司 | Transformer sampler |
| CN104329471A (en) * | 2014-11-25 | 2015-02-04 | 国家电网公司 | Multipurpose valve for main transformer sampling |
| 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 |
| CN114414302A (en) * | 2021-12-03 | 2022-04-29 | 国网山西省电力公司超高压变电分公司 | Transformer oil taking device with replaceable interface |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
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| CX01 | Expiry of patent term |