CN1619096A - Antifreezing sampling valve used for oilfield well - Google Patents
Antifreezing sampling valve used for oilfield well Download PDFInfo
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- CN1619096A CN1619096A CN 200310113669 CN200310113669A CN1619096A CN 1619096 A CN1619096 A CN 1619096A CN 200310113669 CN200310113669 CN 200310113669 CN 200310113669 A CN200310113669 A CN 200310113669A CN 1619096 A CN1619096 A CN 1619096A
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- valve body
- valve
- screw thread
- sampling
- sample
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Abstract
The present invention relates to a freeze-proof sampling valve of wellhead for oil field. Said sampling valve includes valve body and valve stem mounted in the valve body. Said invention also provides the structure characteristics of said valve body and valve stem respectively, between the valve stem and valve body a sealing ring is mounted. On the external cylindrical surface of said valve body a sampling nozzle is mounted, and on said sampling nozzle and a sealing ring also is mounted.
Description
Technical field
The present invention relates to a kind of wellhead sampling special service valve, specifically, is a kind of antifreeze sample valve that is used for oil field shaft mouth.
Background technology
At present, the sampling work of oil field shaft mouth be take the end installation with the mouthpiece cover of carrying oil pipe to be connected have plug stop valve carry out.In winter, because temperature is low, frequent frozen obstruction of stop valve can not be taken a sample it smoothly, and its solution is can take out sample after adopting the vapor baking carburetion, brings great inconvenience to sampling every day.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, a kind of antifreeze sample valve that is used for oil field shaft mouth easy to use is provided.
The antifreeze sample valve that is used for oil field shaft mouth of the present invention comprises valve body and is installed in the interior valve rod of valve body.The endoporus of described valve body is divided into three different parts of diameter, and the diameter least part has screw thread, and the sampling mouth is installed on the valve body of diameter centering portions; Described valve rod is installed in the valve body by screw thread, and the one end has the nose cone that places valve body inner bore maximum gauge hole; Between valve rod and valve body, sealing ring is installed, between sampling mouth and the valve body sealing ring is installed.
Described valve body has external screw thread at endoporus maximum gauge end, and the hole that the sampling mouth is installed has internal thread, and an end of sampling mouth has external screw thread, by screw thread obstruction is installed on the valve body relative with the sampling mouth.
The connecting thread of described valve body and valve rod is a left hand thread.
The cone headed end of described valve rod has cylinder.
The mouthpiece that the antifreeze sample valve that is used for oil field shaft mouth of the present invention is directly installed on petroleum pipeline puts, under the effect of deep fat, this valve is frozen never, bring great convenience to sampling every day, can increase work efficiency, reduce cost, reduce labour intensity, increase economic benefit.
Description of drawings
Fig. 1 is the structure chart that is used for the antifreeze sample valve of oil field shaft mouth of the present invention.
The specific embodiment
Referring to Fig. 1, the antifreeze sample valve that is used for oil field shaft mouth of the present invention comprises valve body 1 and the valve rod 2 that is installed in the valve body 1.The endoporus of described valve body 1 is divided into three different parts of diameter, forms two steps, and the diameter least part has screw thread, and sampling mouth 6 is installed on the valve body of diameter centering portions.Described valve rod is installed in the valve body by screw thread, the one end has the nose cone that places valve body inner bore maximum gauge hole, it is flap, when rotary valve rod makes the cone headed conical surface and endoporus step, be valve seat when contact, if valve closing is when having the gap between the two, oil promptly flows out from this gap, can take out sample; The other end of valve rod is equipped with handle 4.For preventing to leak, sealing ring 8 is installed between valve rod and valve body, between sampling mouth 6 and the valve body sealing ring 7 is installed.
Described valve body has external screw thread at endoporus maximum gauge end, by this screw thread this valve is installed in the mouthpiece that is connected with petroleum pipeline and puts.One end of described sampling mouth 6 has external screw thread, be installed on the valve body by this screw thread, with the relative another side of sampling mouth, also be equipped with on the valve body and stop up 3, so that when installing, because the relation of rotation sampling mouth 6 when the top, can take off sampling mouth 6 and stop up the installation of 3 switches, sampling mouth 6 is remained towards the position of following direction, help sampling.
Because opening of valves when valve rod moves downward with respect to valve body is then closed on the contrary.In order to use and routine adapt, the connecting thread of described valve body and valve rod is a left hand thread.
The end of the conical head of described valve rod has cylinder, and this cylinder physical efficiency fully absorbs the heat of deep fat, even in the coldest period in winter, the heat that this cylinder is drawn is enough to also guarantee that sample valve can not tied by the winter.
The mouthpiece that sample valve of the present invention directly is connected petroleum pipeline puts, and the one end stretches in the mouthpiece cover, because the effect of deep fat, this valve is the temperature that keeps certain all the time, therefore can be because of blocked not the carrying out that influences sampling work of temperature reduction in winter.
Claims (5)
1, the antifreeze sample valve that is used for oil field shaft mouth, comprise valve body (1) and be installed in the interior valve rod (2) of valve body, the endoporus that it is characterized in that described valve body (1) is divided into three different parts of diameter, and the diameter least part has screw thread, and sampling mouth (6) is installed on the valve body of diameter centering portions; Described valve rod is installed in the valve body by screw thread, and the one end has the nose cone that places valve body inner bore maximum gauge hole; Sealing ring (8) is installed between valve rod and valve body, between sampling mouth (6) and the valve body sealing ring (7) is installed.
2. sample valve according to claim 1, it is characterized in that described valve body (1) has external screw thread at endoporus maximum gauge end, the hole that sampling mouth (6) is installed has internal thread, and an end of sampling mouth (6) has external screw thread, by screw thread obstruction (3) is installed on the valve body relative with the sampling mouth.
3. sample valve according to claim 1 and 2 is characterized in that the described valve body (1) and the connecting thread of valve rod (2) are left hand thread.
4. sample valve according to claim 1 and 2 is characterized in that the cone headed end of described valve rod (2) has cylinder.
5. sample valve according to claim 3 is characterized in that the cone headed end of described valve rod (2) has cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310113669 CN1619096A (en) | 2003-11-18 | 2003-11-18 | Antifreezing sampling valve used for oilfield well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310113669 CN1619096A (en) | 2003-11-18 | 2003-11-18 | Antifreezing sampling valve used for oilfield well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1619096A true CN1619096A (en) | 2005-05-25 |
Family
ID=34760011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310113669 Pending CN1619096A (en) | 2003-11-18 | 2003-11-18 | Antifreezing sampling valve used for oilfield well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1619096A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131071B (en) * | 2007-09-30 | 2011-04-13 | 许现西 | Liquid fill adapter for gas well |
| CN102401751A (en) * | 2010-09-10 | 2012-04-04 | 辽宁北方环境保护有限公司 | Novel sampling valve capable of blocking resistance and freezing resistance |
| CN103616463A (en) * | 2013-12-02 | 2014-03-05 | 国网甘肃省电力公司白银供电公司 | Full-sealed chromatography sampling device of insulating oil |
| CN106499828A (en) * | 2015-09-07 | 2017-03-15 | 中国石油天然气股份有限公司 | Sampling valve |
-
2003
- 2003-11-18 CN CN 200310113669 patent/CN1619096A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131071B (en) * | 2007-09-30 | 2011-04-13 | 许现西 | Liquid fill adapter for gas well |
| CN102401751A (en) * | 2010-09-10 | 2012-04-04 | 辽宁北方环境保护有限公司 | Novel sampling valve capable of blocking resistance and freezing resistance |
| CN103616463A (en) * | 2013-12-02 | 2014-03-05 | 国网甘肃省电力公司白银供电公司 | Full-sealed chromatography sampling device of insulating oil |
| CN106499828A (en) * | 2015-09-07 | 2017-03-15 | 中国石油天然气股份有限公司 | Sampling valve |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |