CN201536044U - Special transformer oil sampling valve - Google Patents
Special transformer oil sampling valve Download PDFInfo
- Publication number
- CN201536044U CN201536044U CN2009202452099U CN200920245209U CN201536044U CN 201536044 U CN201536044 U CN 201536044U CN 2009202452099 U CN2009202452099 U CN 2009202452099U CN 200920245209 U CN200920245209 U CN 200920245209U CN 201536044 U CN201536044 U CN 201536044U
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- CN
- China
- Prior art keywords
- spool
- valve
- sealing
- oil
- nozzle cap
- 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.)
- Expired - Fee Related
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- Sampling And Sample Adjustment (AREA)
Abstract
A special transformer oil sampling valve consists of a protective cover, an oil nozzle cap and a valve spool. The oil nozzle cap is arranged at one end of the valve spool, the oil nozzle cap and the valve spool are both located inside the protective cover with one end provided with an opening, the other end of the valve spool is a spherical structure and contacts with a conical surface of a valve body so as to form rigid seal, and simultaneously, a sealing ring and a sealing groove are arranged on the valve spool. The special transformer oil sampling valve is reasonable in design and structure and reliable in sealing property, both has a main seal and an auxiliary seal under an opening state and a closing state, increases sealing reliability and repeatability, and resists oil pressure of 0.8MPa. In addition, sealing property of the valve is not affected by environmental temperature basically, each sealing surface and each sealing element can be protected, and then the special transformer oil sampling valve has long service life.
Description
Technical field
A kind of transformer oil that the utility model relates to electric manufacturing technology field, particularly mesohigh electric utility special service valve that draws oil sample.
Background technology
Transformer oil good insulation preformance, good heat conductivity and transformer oil price are low.Thereby current, adopt transformer oil very many as the power equipment of dielectric, mainly comprise oil immersed type instrument transformer, transformer, oil circuit breaker etc.The said equipment being carried out little water analysis of transformer oil and chromatography, must use all kinds of special service valves that draw oil sample.And at present, the supporting valve of power equipment is of all kinds, in addition have extract oil sample with syringe, but still below existing: 1) when sampling, transformer oil can be along screw thread, along the hole wall oil impregnate.And the current needs of transformer oil are done the chromatography test, and sampling requirement seals as far as possible, are not exposed in the air, therefore do not meet sampling requirement.2) only adopting its material is the potted component of nitrile rubber, and oxidation resistent susceptibility is low, and useful life is shorter, and its sealing reliability is to the ambient temperature sensitivity.
Summary of the invention
The purpose of this utility model is at the above-mentioned shortcoming of the valve that draws oil sample, sealing principle and structure at the valve that draws oil sample are carried out innovative design, a kind of transformer oil of the brand new special service valve that draws oil sample is provided, improving its sealing reliability, adaptive capacity to environment and life-span, and easy to install, reliable.
Design of the present utility model:
The utility model is innovated on sealing principle, that is: the valve body cone structure designs and reach the seal groove design on design of spool sphere and the spool, guarantees that its sealing property is not influenced by ambient temperature.Specifically, the transformer oil special service valve that draws oil sample, it is made of protecting cover, oil nozzle cap, spool, the oil nozzle cap is loaded on spool one end and is positioned at the protecting cover of an end opening jointly, the other end of spool is spherical structure and contacts with the conical surface of valve body, the sealing of formation rigidity, spool is provided with the seal groove of placing sealing ring simultaneously.
The utlity model has following advantage and effect:
1) project organization is reasonable, and sealing property is reliable, all has major-minor two seals under the opening and closing two states, has improved sealing reliability and repeatability, and its oil resistant is pressed 0.8MPa;
2) its sealing property is not subjected to the influence of ambient temperature substantially, and adaptive capacity to environment is strong, and each sealing surface and potted component all have safeguard measure, long working life.1. draw oil sample valve under the closed condition: utilize the valve body conical surface and spool sphere under the revolving force effect, forming a round wire seals and finishes sealing, do not need to adopt sealing intermediary, and has an automatic centering, so good reproducibility of sealing surface, two kinds of materials are close to identical temperature expansion coefficients, make not temperature influence of sealing property.2. draw oil sample valve under the opening: utilize on the spool " O " RunddichtringO reasonably realizing under the decrement, thereby guarantee at this state lower seal.3. the valve that draws oil sample is in to be closed, opens under the transition state: utilize on the valve body core " O " RunddichtringO and oil nozzle cap reasonably realizing under the decrement, thereby guarantee that transformer oil is non-leakage under this state.
3) volume of valve is little, in light weight, makes simple, convenient, and aesthetic in appearance.
Description of drawings
Figure is the utility model structural representation.
Embodiment
As shown in the figure, the special service valve that draws oil sample is made up of protecting cover 1, oil nozzle cap 2, spool 3, O RunddichtringO 4,5,6, valve body 7, O RunddichtringO 4 is contained in the seal groove of spool 3, and oil nozzle cap 2 is contained in spool 3 gets the hydraulic fluid port end, and spool 3 seal groove places are shaped on external screw thread, then spool 3 are screwed in the internal thread that matches of system in the valve body 7, and O RunddichtringO 5 is put into valve body 7 external screw threads bottom, protecting cover 1 screws on valve body 7 external screw threads, and last O RunddichtringO 6 is put into valve body 7 bottom seal grooves.
The operation principle of this special service valve that draws oil sample: be rotated counterclockwise protecting cover 1 earlier, and take off protecting cover 1, during another mistake hour hands rotary spool 3, opening of valves draws oil sample, O RunddichtringO 4 in the seal groove of spool 3 contacts with valve body 7 internal threads upper end inwall and is contained in the oil nozzle cap 2 that spool 3 is got the hydraulic fluid port end at this moment, form the sealing of conducting sealing surface, at this moment take off oil nozzle cap 2, transformer oil in the equipment can be put into sampling cup.Equipment is drained the oil and is finished, and during dextrorotation rotary plate 3, spool 3 bottom spheres contact with the bottom conical surface in the valve body 7, sealing surface is closed in formation, the rigidity sealing is contained in the O RunddichtringO 5 that spool 3 is got the oil nozzle cap 2 of hydraulic fluid port end and is contained in spool 7 external screw threads bottom in addition, constitutes auxiliary seal.
Claims (2)
1. the transformer oil special service valve that draws oil sample, it is characterized in that constituting by protecting cover (1), oil nozzle cap (2), spool (3), oil nozzle cap (2) is loaded on spool (3) one ends and is positioned at the protecting cover (1) of an end opening jointly, the other end of spool (3) is spherical structure and contacts with the conical surface of valve body (7), the sealing of formation rigidity, spool (3) is provided with the seal groove of placing sealing ring simultaneously.
2. the transformer oil according to claim 1 special service valve that draws oil sample, it is characterized in that sealing ring comprises O RunddichtringO (4,5,6), O RunddichtringO (4) is contained in the seal groove at spool (3) middle part, oil nozzle cap (2) is contained in spool (3) and gets the hydraulic fluid port end, and spool (3) seal groove place is shaped on external screw thread, spool (3) screws in the internal thread that matches of system in the valve body (7), O RunddichtringO (5) is put into valve body (7) external screw thread bottom, protecting cover (1) screws on valve body (7) external screw thread, and O RunddichtringO (6) is put into valve body (7) bottom seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202452099U CN201536044U (en) | 2009-10-30 | 2009-10-30 | Special transformer oil sampling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202452099U CN201536044U (en) | 2009-10-30 | 2009-10-30 | Special transformer oil sampling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201536044U true CN201536044U (en) | 2010-07-28 |
Family
ID=42535821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202452099U Expired - Fee Related CN201536044U (en) | 2009-10-30 | 2009-10-30 | Special transformer oil sampling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201536044U (en) |
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 |
| CN109058483A (en) * | 2018-09-06 | 2018-12-21 | 河南中托力合化学有限公司 | A kind of valve core structure of pipeline sampling apparatus and its application |
| 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 |
| CN111828755A (en) * | 2020-08-19 | 2020-10-27 | 常州同敏机械科技有限公司 | Oil discharge joint for oil storage device |
-
2009
- 2009-10-30 CN CN2009202452099U patent/CN201536044U/en not_active Expired - Fee Related
Cited By (5)
| 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 |
| CN109058483A (en) * | 2018-09-06 | 2018-12-21 | 河南中托力合化学有限公司 | A kind of valve core structure of pipeline sampling apparatus and its application |
| 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 |
| CN111828755A (en) * | 2020-08-19 | 2020-10-27 | 常州同敏机械科技有限公司 | Oil discharge joint for oil storage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20171030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |