CN2341140Y - Sampling valve for oil filled electric power equipment - Google Patents
Sampling valve for oil filled electric power equipment Download PDFInfo
- Publication number
- CN2341140Y CN2341140Y CN 98206402 CN98206402U CN2341140Y CN 2341140 Y CN2341140 Y CN 2341140Y CN 98206402 CN98206402 CN 98206402 CN 98206402 U CN98206402 U CN 98206402U CN 2341140 Y CN2341140 Y CN 2341140Y
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- oil
- valve
- valve body
- spool
- electric power
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Abstract
The utility model relates to a sampling valve for an oil filled electric power equipment, comprising a valve body, a valve cap, a valve core and a sealing piece. The utility model is characterized in that the inner screw thread at one end of the valve body is connected with the valve core, the outer screw thread is connected with the valve cap, and the connecting parts of the screw threads are provided with sealing rings; the other end of the valve body is provided with a sealing ring, small holes in the middle of the valve body are in the chamfer angle from 30 DEG to 60 DEG and are tangent with the cambered surface on the top of the valve core; the valve core is provided with a radial oil inlet and a central oil outlet. The problems that oil leaks from the oil outlet valve of the oil filled equipment easily and the oil can not be sampled easily on site are solved; the utility model has reliable sealing performance, can regulate the oil flow with fixed quantity and is operated simply and safely; the utility model is used and arranged in the oil filled electrical equipment of the power system widely.
Description
The utility model relates to a kind of electric power oil-filled equipment sample valve that the oil-filled electric equipment of electric system carries out hermetically sealed sampling that is used for.
At present, the Domestic Electric system needs oil-filled electric equipment (transformer, mutual inductor, sleeve pipe etc.), when drawing oil sample, utilize equipment and fuel outlet valve to take a sample, the following problem of ubiquity: the one, can not satisfy GB GB7252-87 " dissolved gas analysis and judgement guide rule in the transformer " regulation, to the hermetically sealed requirement of getting the chromatogram oil sample of electric power oil-filled equipment; The 2nd, can not get and how much put how many quantitative samplings, making drains the oil too much causes equipment repairings in a large number, has increased labour intensity; The 3rd, operate very inconveniently, in sampling process, easily cause too much seepage grunge pollution equipment of stream oil; The 4th, be difficult for charged scene and draw oil sample, influence work efficiency.
The purpose of this utility model is to address the above problem and a kind of easy and simple to handle, safety is provided, and adopts copper core ball face sealing and rubber ring auxiliary seal structure, good seal performance, the electric power oil-filled equipment sample valve of convenient charged on-site sampling.
The purpose of this utility model is achieved by the following technical solution:
A kind of electric power oil-filled equipment sample valve, comprise valve body, bonnet, spool, seal, the female connection that it is characterized in that valve body one end has spool, external thread is linked with bonnet, the spiral marking connection position is provided with O-ring seal, the valve body other end is equiped with O-ring seal, and central small hole is 30-60 ° of chamfering in the valve body, and is tangent with spool top cambered surface; Spool is provided with radially oil supply hole and center oil outlet.
Oil supply hole is a through hole, and connects with oil outlet.
Valve body, bonnet and spool external diameter part all are the hexagonal nut shape.
Spool is got oil, and to chew external diameter tapered step-like.
The utlity model has following advantage:
1, valve seal adopts copper core ball face sealing, and is furnished with sealing rubber ring and makes auxiliary seal, and reasonable in design, sealing property is reliable, has avoided oil seepage phenomena.
2, meet GB GB7252-87 regulation and carry out hermetically sealed sampling, and adjustable fuel-economizing flow, get and how much what are put, when having solved sampling, because the more equipment problem of repairings in a large number that causes of draining the oil, after the sampling, equipment cleaning, oil stains-less.
3, overcome the charged difficulty that draws oil sample, made scene easy to operate, the safety that draws oil sample, alleviated labour intensity, improved work efficiency.
4, simple in structure being easy to of the utility model made, and be easy for installation, need not transform one-step installation, the permanent use to equipment.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is an A-A view among Fig. 1;
Fig. 3 is 1 enlarged drawing among Fig. 1.
The utility model is described in further detail below in conjunction with drawings and Examples: consult shown in Figure 1, electric power oil-filled equipment sample valve mainly is made of valve body 1, bonnet 2, spool 3, O- ring seal 4,5,7 etc., the external diameter suitable position of its valve body 1, bonnet 2, spool 3 all is local hexagonal nut shape, is convenient to screw installation.One end of valve body 1 is provided with internal and external screw thread, interior spiral shell connects spool 3, external thread connects bonnet 2, the spiral marking connection position is provided with O- ring seal 4,5, the other end of valve body 1 is provided with internal thread and O-ring seal 7, be convenient to equipment on fuel outlet valve connect and sealing the O RunddichtringO that all O-ring seals adopt oil resistant rubber to make.Spool 3 one end tops are circular-arc, radially are provided with oil supply hole 6, and the other end chews 9 for getting oil, and its external diameter is tapered step-like, is convenient to install flexible pipe or T-valve, and spool 3 centers are provided with oil outlet 8, and oil supply hole 6 is a through hole, connect mutually with oil outlet 8.
Consult Fig. 2, shown in Figure 3 simultaneously, the central small hole in the valve body 1 is 45 ° of chamferings, and tangent with spool 3 top cambered surfaces, oil circuit is opened and closed when being convenient to draw oil sample.
Installation of the present utility model and use: during installation, remove the sealing cap of fuel outlet valve on the oil-filled electric equipment, unclamp sealed screw, when pine formed little oil column to stream is oily, rapid screw thread with valve body 1 one end internal threads of the present utility model and O-ring seal 7 and fuel outlet valve was installed and is screwed.During sampling, screw off bonnet 2, chew 9 type conical bench position and install φ 5-6 flexible pipe or T-valve getting oil, connect syringe or sampling jar, spool 3 is revolved the 2-3 circle in the counterclockwise direction, make top cambered surface and valve body 1 chamfering form the gap, can draw oil sample, get the flow of oil mass, be to regulate by the rotary gap of spool 3, get oil mass what can pass through syringe, the metering of sampling jar scale, get and how much put what, can be owing to the more equipment palpus phenomenon of repairings in a large number that causes of draining the oil.It is to flow into oil supply hole 6 from the gap that the oil circuit that draws oil sample flows to, and flows in syringe or the sampling jar through oil outlet 8, and sampling process is carried out under whole sealing status, meets the requirement of drawing oil sample of GB GB7252-87 fully, ne-leakage oil phenomenon.After having got oil sample, spool 3 and bonnet 2 are screwed and can seal fully.
The tandem product of the different size that the utility model can match with it according to the size production of fuel outlet valve on the electric power oil-filled equipment, model, size.
Claims (4)
1. electric power oil-filled equipment sample valve, comprise valve body, bonnet, spool, seal, the female connection that it is characterized in that valve body (1) one end has spool (3), external thread is linked with bonnet (2), the spiral marking connection position is provided with O-ring seal (4), (5), valve body (1) other end is equiped with O-ring seal (7), and the interior central small hole of valve body (1) is 30-60 ° of chamfering, and is tangent with spool (3) top cambered surface; Spool (3) is provided with radially oil supply hole (6) and center oil outlet (8).
2. electric power oil-filled equipment sample valve according to claim 1 is characterized in that oil supply hole (6) is a through hole, and connects with oil outlet (8).
3. electric power oil-filled equipment sample valve according to claim 1 is characterized in that valve body (1), bonnet (2) and spool (3) external diameter part all are the hexagonal nut shape.
4. according to claim 1 or 2 or 3 described electric power oil-filled equipment sample valves, it is characterized in that getting oil by spool (3), to chew (9) external diameter tapered step-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98206402 CN2341140Y (en) | 1998-07-02 | 1998-07-02 | Sampling valve for oil filled electric power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98206402 CN2341140Y (en) | 1998-07-02 | 1998-07-02 | Sampling valve for oil filled electric power equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2341140Y true CN2341140Y (en) | 1999-09-29 |
Family
ID=33962580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98206402 Revoked CN2341140Y (en) | 1998-07-02 | 1998-07-02 | Sampling valve for oil filled electric power equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2341140Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208255A (en) * | 2011-03-19 | 2011-10-05 | 辽宁省电力有限公司葫芦岛供电公司 | Current transformer oil drain valve with control valve |
| CN101592566B (en) * | 2009-06-30 | 2012-05-30 | 河南省中分仪器有限公司 | Multi-sampling-port insulating oil sampling valve |
| CN104990764A (en) * | 2015-06-30 | 2015-10-21 | 国家电网公司 | Sealed sampling device for oil filled bushing of power transformer |
| CN105675345A (en) * | 2014-11-19 | 2016-06-15 | 国家电网公司 | Anti-electrostatic induction oil sampling head |
| 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 |
| CN112461591A (en) * | 2020-10-14 | 2021-03-09 | 刘春全 | Transformer single quantitative oil drain valve convenient for sampling detection |
-
1998
- 1998-07-02 CN CN 98206402 patent/CN2341140Y/en not_active Revoked
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592566B (en) * | 2009-06-30 | 2012-05-30 | 河南省中分仪器有限公司 | Multi-sampling-port insulating oil sampling valve |
| CN102208255A (en) * | 2011-03-19 | 2011-10-05 | 辽宁省电力有限公司葫芦岛供电公司 | Current transformer oil drain valve with control valve |
| CN102208255B (en) * | 2011-03-19 | 2013-07-17 | 辽宁省电力有限公司葫芦岛供电公司 | Current transformer oil drain valve with control valve |
| CN105675345A (en) * | 2014-11-19 | 2016-06-15 | 国家电网公司 | Anti-electrostatic induction oil sampling head |
| CN104990764A (en) * | 2015-06-30 | 2015-10-21 | 国家电网公司 | Sealed sampling device for oil filled bushing of power transformer |
| 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 |
| CN112461591A (en) * | 2020-10-14 | 2021-03-09 | 刘春全 | Transformer single quantitative oil drain valve convenient for sampling detection |
| CN112461591B (en) * | 2020-10-14 | 2023-12-15 | 营口众成电力设备制造有限公司 | Transformer single quantitative oil drain valve convenient for sampling detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C28 | Revocation of patent right or utility model | ||
| RW01 | Full revocation of patent right |
Decision date of revocation: 20020816 |