CN203453496U - Sampling valve for oil conveying pipeline - Google Patents
Sampling valve for oil conveying pipeline Download PDFInfo
- Publication number
- CN203453496U CN203453496U CN201320544531.8U CN201320544531U CN203453496U CN 203453496 U CN203453496 U CN 203453496U CN 201320544531 U CN201320544531 U CN 201320544531U CN 203453496 U CN203453496 U CN 203453496U
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- Prior art keywords
- valve
- valve body
- valve rod
- sampling
- plug
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- Expired - Fee Related
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Abstract
A sampling valve for an oil conveying pipeline comprises a plug, a pipeline body, a welded pipe, a valve body, a pressing cap and a valve rod. The welded pipe is installed in the pipeline body, the valve body is connected with the welded pipe in a threaded mode, the valve rod is installed in the valve body, the outer threads of the valve rod are connected with the inner threads of the valve body, and the pressing cap is connected with the outer threads of the valve body. A communication groove is formed in the lower end surface of the valve body. The right end of the plug is hung at the left end of the valve rod, the contact surface of the plug and the valve rod is a spherical surface, and the circular conical surface at the left end of the plug makes contact with the inner circular conical surface at the left end of the valve body. A volume space is almost not preserved between the sampling valve and the front end of a sampling pipe, a crude oil sample can be directly taken, emptying is not needed, and therefore the crude oil waste and the environmental pollution are avoided, and the sampling work is convenient and fast. Alignment can be carried out between the plug and the valve rod, and therefore the sealing surface between the plug and the valve body can be a continuous surface, and the sampling valve can be sealed.
Description
Technical field
The utility model is the detection device on a kind of petroleum pipeline, is a kind of sampling valve for oil pipeline.
Background technique
Petroleum pipeline is when conveying crude oil, will be at any time to the crude oil sampling chemical examination in pipeline, between current sample cock and probe tube front end, there is certain volume space, for improving sampling quality, guarantee the accuracy of chemical examination, during sampling, to first bleed off after the crude oil in this part space sample examination again, cause crude oil waste and environmental pollution, sampling work trouble.The purpose of design of Chinese patent 200620009725.8 < < sampling valve for oil pipeline > > is direct sample, avoid causing crude oil waste and environmental pollution, but its valve rod with valve body for being threaded, valve rod left end conical surface contacts and will reach seal request with the left inside end conical surface of valve body, must require the axis of thread and conical surface axis height coaxial, this is difficult to realize in processing, so its sealing effect is bad.
Summary of the invention
The purpose of this utility model is a kind of sampling valve for oil pipeline of design, makes its direct sample, can not cause crude oil waste and environmental pollution, and sampling work is convenient, fast, and guarantees sealing.
The purpose of this utility model is achieved in that and comprises obstruction, pipeline, welded tube, valve body, pressure cap, valve rod, welded tube is arranged in pipeline, valve body is threaded with welded tube, valve rod is arranged in valve body, and the outside thread of valve rod is connected with the internal thread of valve body, and pressure cap is connected with the outside thread of valve body, valve body downside has UNICOM's groove, the right-hand member stopping up hangs over the left end of valve rod, and stopping up with the surface of contact of valve rod is spherical, and the conical surface that stops up left end contacts with the internal conical surface of valve body left end.
The beneficial effects of the utility model are: between sample cock and probe tube front end, almost there is no volume space, can directly get crude oil sample, do not need emptying, can not cause crude oil waste and environmental pollution, sampling work is convenient, fast, stop up and valve rod between can aligning, can guarantee that the sealing surface between obstruction and valve body is continuous surface, guarantee that the utility model seals.
Accompanying drawing explanation
Accompanying drawing is the utility model embodiment's erection drawing.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described.
As seen from the figure, embodiment of the present utility model comprises obstruction 1, pipeline 2, welded tube 3, valve body 4, pressure cap 5, valve rod 6, welded tube 3 is arranged on 2 li of pipelines (welded tube 3 pipelines 2 are integrally welded), valve body 4 is threaded with welded tube 3, valve rod 6 is arranged in valve body 4, the outside thread of valve rod 6 is connected with the internal thread of valve body 4, pressure cap 5 is connected with the outside thread of valve body 4, valve body 4 downsides have UNICOM's groove, the right-hand member of obstruction 1 hangs over the left end of valve rod 5, obstruction 1 is spherical with the surface of contact of valve rod 5, the conical surface that stops up 1 left end contacts with the internal conical surface of valve body 4 left ends, surface of contact is sealing surface.Stopping up 1 can aligning with valve rod 5, guarantee to stop up 1 with the surface of contact of valve rod 5 be continuous surface.
During sampling, rotary valve rod 6, drive obstruction 1 to move, stop up 1 with valve body 4 between conical surface do not contact, the crude oil in pipeline 2 goes out from UNICOM's concentrated flow of valve body 4 downsides, because the volume of UNICOM's groove of valve body 4 downsides is very little, so can directly get crude oil sample, do not need emptying, can not cause crude oil waste and environmental pollution, sampling work is convenient, fast.Valve rod 6 backways are spacing by pressure cap 5.
Valve rod 5 left ends process fluting and just can be suspended on together stopping up 1.
Claims (1)
1. a sampling valve for oil pipeline, comprise obstruction (1), pipeline (2), welded tube (3), valve body (4), pressure cap (5), valve rod (6), it is inner that welded tube (3) is arranged on pipeline (2), valve body (4) is threaded with welded tube (3), valve rod (6) is arranged in valve body (4), the outside thread of valve rod (6) is connected with the internal thread of valve body (4), pressure cap (5) is connected with the outside thread of valve body (4), valve body (4) downside has UNICOM's groove, it is characterized in that: the right-hand member that stops up (1) hangs over the left end of valve rod (5), stopping up (1) is spherical with the surface of contact of valve rod (5), the conical surface that stops up (1) left end contacts with the internal conical surface of valve body (4) left end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320544531.8U CN203453496U (en) | 2013-08-30 | 2013-08-30 | Sampling valve for oil conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320544531.8U CN203453496U (en) | 2013-08-30 | 2013-08-30 | Sampling valve for oil conveying pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203453496U true CN203453496U (en) | 2014-02-26 |
Family
ID=50133372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320544531.8U Expired - Fee Related CN203453496U (en) | 2013-08-30 | 2013-08-30 | Sampling valve for oil conveying pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203453496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105516A (en) * | 2016-11-19 | 2018-06-01 | 天津欧津汇溢市场调查有限公司 | A kind of technological service pipe heating devices |
-
2013
- 2013-08-30 CN CN201320544531.8U patent/CN203453496U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105516A (en) * | 2016-11-19 | 2018-06-01 | 天津欧津汇溢市场调查有限公司 | A kind of technological service pipe heating devices |
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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: 20140226 Termination date: 20140830 |
|
| EXPY | Termination of patent right or utility model |