CN203796222U - Fixed throttle valve used for oil extraction wellhead - Google Patents
Fixed throttle valve used for oil extraction wellhead Download PDFInfo
- Publication number
- CN203796222U CN203796222U CN201420152987.4U CN201420152987U CN203796222U CN 203796222 U CN203796222 U CN 203796222U CN 201420152987 U CN201420152987 U CN 201420152987U CN 203796222 U CN203796222 U CN 203796222U
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- China
- Prior art keywords
- oil nozzle
- valve
- described oil
- throttle valve
- external screw
- 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 - Lifetime
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- 238000000605 extraction Methods 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 claims description 35
- 125000006850 spacer group Chemical group 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 22
- 239000002131 composite material Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 20
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 235000019994 cava Nutrition 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 8
- 239000012530 fluid Substances 0.000 description 5
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Valve Housings (AREA)
Abstract
The utility model discloses a fixed throttle valve used for an oil extraction wellhead. The fixed throttle valve comprises a valve body and a bonnet. The fixed throttle valve is characterized by further comprising a high-pressure stop valve and an oil nozzle assembly; a valve cavity is arranged in the valve body, the bonnet extends into the top of the valve cavity, a flow channel communicated with the valve cavity is arranged inside the bonnet, the high-pressure stop valve is arranged at the top of the flow channel, a flange capable of being connected with the valve is arranged on the side face of the valve body, an inflow port connected with the valve cavity is arranged inside the flange, an inner thread is arranged in the inner wall of the valve cavity at the lower end of the inflow port, and the oil nozzle assembly is fittingly connected with the inner thread of the inner wall of the valve cavity through an outer thread. By the arrangement, the problems of high cost and troublesome maintenance of the replaced throttle valve due to the fact that when an oil nozzle is damaged after being washed out and the throttle valve fixedly connected with the oil nozzle assembly needs to be replaced resulting in delay of normal extraction of oil are solved, so that normal extraction of the oil is unaffected.
Description
Technical field
The utility model relates to a kind of choke valve, particularly relates to a kind of production wellhead fixation type throttle valve.
Background technology
Choke valve is by changing throttling cross section or chock length to control the valve of fluid flow.It is streamlined that the opening and closing element of choke valve is mostly circular cone, changes channel cross-sectional area reach adjust flux and pressure by it.Choke valve is for making to reduce pressure medium in the great situation of Pressure Drop.
Recovering the oil, in the work production process of gas production, owing to existing a large amount of impurity in fluid media (medium), as grains of sand etc., these impurity are under the effect of high-pressure fluid medium, flow velocity is fast, runner hole is produced to very strong souring, that particularly washes away in the entrance of adjust flux is more severe, therefore, adopt the oil nozzle life-span of common steel manufacturing very short, need to change frequently oil nozzle composite member, therefore consider that oil nozzle material adopts carbide alloy, its flexural strength is 1500MPa, hardness is HRA89, than the more resistance to erosion of oil nozzle through heat treatment manufacturing with common material, wear-resistant and corrosion-resistant, but Hardmetal materials density is very large, reach every cubic centimetre of 15g, price is high, if oil nozzle part is all manufactured with Hardmetal materials, the overall weight of meeting increase equipment, also waste material, increase greatly manufacturing cost.
Simultaneously because original oil nozzle composite member is fixedly connected with choke valve, cause so whole choke valve normally to use, need to change choke valve, delay the normal collection of fluid, affect picking rate, because oil nozzle composite member and choke valve are to be fixedly connected with, the choke valve maintenance changing also very bothers simultaneously, and maintenance cost is higher.
Utility model content
To be fixedly connected with in order to solve oil nozzle composite member in prior art with choke valve, when oil nozzle is washed after damage, need to change choke valve, delay the normal collection of fluid, the choke valve maintenance trouble simultaneously changing, the problem that cost is high, it is a kind of simple in structure that the utility model provides, can quick-replaceable oil nozzle composite member, do not affect the production wellhead fixation type throttle valve that normal collection is used.
In order to address the above problem, technical solution adopted in the utility model is:
A kind of production wellhead fixation type throttle valve, comprise valve body and valve gap, it is characterized in that: also comprise high-pressure stop valve and oil nozzle composite member, in valve body, be provided with valve pocket, valve gap has been stretched at top at valve pocket, in valve gap, be provided with the runner connecting with valve pocket, be provided with high-pressure stop valve at runner top, be provided with the flange that can be connected with valve in the side of valve body, in flange, be provided with the influent stream mouth being connected with valve pocket, on the valve pocket inwall of influent stream mouth lower end, be provided with internal thread, described oil nozzle composite member is connected with the screw-internal thread fit of valve pocket inwall by external screw thread.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: be also provided with one in the side of valve body and connect with valve pocket the exhaust pressure relief valve being connected.
Aforesaid a kind of production wellhead fixation type throttle valve, it is characterized in that: described oil nozzle composite member comprises oil nozzle seat, oil nozzle and sealing ring, in described oil nozzle seat, be provided with oil gas runner, described oil nozzle seat upper inside wall caves inward and forms oil nozzle placement section, described oil nozzle is fixing is connected to oil nozzle placement section by matched in clearance, on the cylindrical of oil nozzle seat middle part, be provided with external screw thread, described oil nozzle seat is connected with the screw-internal thread fit of valve pocket inwall by external screw thread, on the oil nozzle seat cylindrical below external screw thread, is arranged with the sealing ring sealing.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: described oil nozzle top embeds circlip for hole.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: described oil nozzle adopts Hardmetal materials to make, and described oil nozzle seat adopts 12Cr13 stainless steel material to make.
Aforesaid a kind of production wellhead fixation type throttle valve, it is characterized in that: described oil nozzle composite member comprises oil nozzle seat, oil nozzle, oil nozzle spacer shell and sealing ring, on oil nozzle spacer shell cylindrical, be provided with external screw thread, described oil nozzle spacer shell is connected with the screw-internal thread fit arranging on oil nozzle seat inwall by external screw thread, in oil nozzle spacer shell, be provided with oil gas runner, described oil nozzle is arranged on by interference fit on the inwall of oil gas runner, on the cylindrical of oil nozzle seat middle part, be provided with external screw thread, described oil nozzle seat is connected with the screw-internal thread fit of valve pocket inwall by external screw thread, on oil nozzle seat cylindrical below external screw thread, be arranged with the sealing ring sealing.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: the sealing ring that is provided with two seals oil nozzle spacer shell and oil nozzle seat annular space on the cylindrical of oil nozzle spacer shell lower end.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: described oil gas runner is designed to step-like, comprises interconnective large aperture runner and small-bore runner, and described oil nozzle is realized interference fit with large aperture runner and is connected.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: described oil nozzle adopts Hardmetal materials to make, and described oil nozzle seat and oil nozzle spacer shell adopt 12Cr13 stainless steel material to make.
Aforesaid a kind of production wellhead fixation type throttle valve, is characterized in that: described oil nozzle spacer shell top cylindrical adopts hexagonal design.
The beneficial effects of the utility model are: the utility model production wellhead fixation type throttle valve, on the valve pocket inwall of influent stream mouth lower end, be provided with internal thread, described oil nozzle is fixedly connected on oil nozzle placement section, on the cylindrical of oil nozzle seat middle part, be provided with external screw thread, described oil nozzle seat is connected with the screw-internal thread fit of valve pocket inwall by external screw thread, employing aforesaid way connects, oil nozzle seat can be taken out and change from choke valve quickly and easily, use convenient, do not delay picking rate, improve output, oil nozzle is designed to be with oil nozzle spacer shell simultaneously, do oil nozzle with little Hardmetal materials, save like this Hardmetal materials, solve carbide alloy crisp, the defect that impact resistance is poor, also saved greatly manufacturing cost.
Brief description of the drawings
Fig. 1 is the utility model production wellhead fixation type throttle valve arrangement schematic diagram.
Fig. 2 is a kind of oil nozzle assembling unit structure of the utility model schematic diagram.
Fig. 3 is the another kind of oil nozzle assembling unit structure of the utility model schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, a kind of production wellhead fixation type throttle valve, comprises valve body 1, valve gap 2, oil nozzle composite member 3, high-pressure stop valve 5, the tight cap 6 of screw thread and exhaust pressure relief valve 7, is provided with valve pocket 4 in valve body 1, stretch into valve gap 5 at the top of valve pocket 4, be arranged with the tight cap 6 of screw thread in valve gap 5 outsides.In valve gap 2, be provided with the runner 8 connecting with valve pocket 4, be provided with high-pressure stop valve 5 at runner 8 tops, be provided with the flange 9 that can be connected with valve in the side of valve body 1, in flange 9, be provided with the influent stream mouth 10 being connected with valve pocket 4, on valve pocket 4 inwalls of influent stream mouth 7 lower ends, be provided with internal thread, also be provided with one in the side of valve body 1 and connect with valve pocket 4 the exhaust pressure relief valve 7 being connected, described oil nozzle composite member 3 is connected with the screw-internal thread fit of valve pocket 4 inwalls by external screw thread.
When design, use for the ease of different inner diameters oil nozzle, oil nozzle composite member is designed to two kinds of moulding.
As shown in Figure 2, the oil nozzle composite member of being convenient to the use of heavy caliber oil nozzle comprises oil nozzle seat 11, oil nozzle 12 and sealing ring 14, in described oil nozzle seat 11, be provided with oil gas runner 15, described oil nozzle seat 11 upper inside wall cave inward and form oil nozzle placement section, described oil nozzle 12 is connected to oil nozzle placement section by matched in clearance, on oil nozzle seat 9 middle part cylindricals, be provided with external screw thread 16, described oil nozzle seat 11 is connected with the screw-internal thread fit of valve pocket 4 inwalls by external screw thread 16, on oil nozzle seat 11 cylindricals below external screw thread 16, be arranged with the sealing ring 14 sealing, can prevent that like this oil gas from being refluxed and being spilt by the external screw thread 16 of oil nozzle seat 11, affect the use of control valve.Embed and have circlip for hole 13 at oil nozzle 10 tops.Can prevent that like this oil nozzle 12 from upwards scurrying out and leave oil nozzle placement section due to reaction force, improve the security reliability that whole equipment uses.Described oil nozzle 12 is fixedly connected with and oil nozzle placement section by sealing ring 14.Described oil nozzle 12 adopts Hardmetal materials to make, and described oil nozzle seat 11 adopts 12Cr13 stainless steel material to make.
As shown in Figure 3, the oil nozzle composite member of being convenient to small-bore oil nozzle use comprises oil nozzle seat 17, oil nozzle 19, oil nozzle spacer shell 18 and sealing ring 24, on oil nozzle spacer shell 18 cylindricals, be provided with external screw thread, described oil nozzle spacer shell 18 is connected with the screw-internal thread fit arranging on oil nozzle seat 17 inwalls by external screw thread, is provided with the sealing ring 24 of two seals oil nozzle spacer shell 18 and oil nozzle seat 17 annular spaces on oil nozzle spacer shell 18 lower end cylindricals.
In oil nozzle spacer shell 18, be provided with oil gas runner 20, oil gas runner 20 is designed to step-like, comprises interconnective large aperture runner 22 and small-bore runner 23, and described oil nozzle 19 is realized interference fit with large aperture runner 22 and is connected.On oil nozzle seat 17 middle part cylindricals, be provided with external screw thread 21, described oil nozzle seat 17 is connected with the screw-internal thread fit of valve pocket 4 inwalls by external screw thread, on oil nozzle seat 17 cylindricals below external screw thread 21, be arranged with sealing ring 24, the effectively sealing of the annular space between sealed valve body 1 and oil nozzle seat 17, prevents dielectric leakage.
Described oil nozzle 19 adopts Hardmetal materials to make, described oil nozzle seat 17 and oil nozzle spacer shell 18 adopt 12Cr13 stainless steel material to make, and have saved like this Hardmetal materials, have solved carbide alloy crisp, the defect that impact resistance is poor, has also saved manufacturing cost greatly.Described oil nozzle spacer shell 18 top cylindricals adopt hexagonal design.Can mount and dismount with special spanner.
The oil nozzle resistance to erosion of the utility model oil nozzle composite member, corrosion-resistant, wear-resistant, long service life.Oil nozzle 10 is divided into some groups, and oil nozzle diameter is from ￠ 1.58～￠ 19.84, and increment is 0.79, totally 24; Diameter is from ￠ 20.64～￠ 39.68, and totally 16, diameter ￠ 20.64～￠ 25.4 increments are 0.79, and totally 7, diameter is 1.58 from ￠ 26.98～￠ 39.68 increments, totally 9; The 3rd group of oil nozzle diameter ￠ 41.27～￠ 50.8 increments are 1.58, totally 7, user can need to select corresponding oil nozzle according to different flow, meet production requirement, like this by changing different oil nozzle composite membeies, can change the diameter of oil nozzle, thereby change the flow of production wellhead fixation type throttle valve, easy to use.
In sum, on the valve pocket inwall of influent stream mouth lower end, be provided with internal thread, described oil nozzle is fixedly connected on oil nozzle placement section, on the cylindrical of oil nozzle seat middle part, be provided with external screw thread, described oil nozzle seat is connected with the screw-internal thread fit of valve pocket inwall by external screw thread, employing aforesaid way connects, oil nozzle seat can be taken out and change from choke valve quickly and easily, use convenient, do not delay picking rate, improve output, the utility model oil nozzle structure is reasonable in design, dismounting and change oil nozzle is convenient, particularly in the large sand amount shaft mouth operation process of oil field, choke pressure is stable, effective, application life especially common material oil nozzle 5-6 doubly.
More than show and described general principle of the present utility model, principal character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. a production wellhead fixation type throttle valve, comprise valve body and valve gap, it is characterized in that: also comprise high-pressure stop valve and oil nozzle composite member, in valve body, be provided with valve pocket, valve gap has been stretched at top at valve pocket, in valve gap, be provided with the runner connecting with valve pocket, be provided with high-pressure stop valve at runner top, be provided with the flange that can be connected with valve in the side of valve body, in flange, be provided with the influent stream mouth being connected with valve pocket, on the valve pocket inwall of influent stream mouth lower end, be provided with internal thread, described oil nozzle composite member is connected with the screw-internal thread fit of valve pocket inwall by external screw thread.
2. a kind of production wellhead fixation type throttle valve according to claim 1, is characterized in that: be also provided with one in the side of valve body and connect with valve pocket the exhaust pressure relief valve being connected.
3. a kind of production wellhead fixation type throttle valve according to claim 2, it is characterized in that: described oil nozzle composite member comprises oil nozzle seat, oil nozzle and sealing ring, in described oil nozzle seat, be provided with oil gas runner, described oil nozzle seat upper inside wall caves inward and forms oil nozzle placement section, described oil nozzle is fixing is connected to oil nozzle placement section by matched in clearance, on the cylindrical of oil nozzle seat middle part, be provided with external screw thread, described oil nozzle seat is connected with the screw-internal thread fit of valve pocket inwall by external screw thread, on the oil nozzle seat cylindrical below external screw thread, is arranged with the sealing ring sealing.
4. a kind of production wellhead fixation type throttle valve according to claim 3, is characterized in that: described oil nozzle top embeds circlip for hole.
5. a kind of production wellhead fixation type throttle valve according to claim 4, is characterized in that: described oil nozzle adopts Hardmetal materials to make, and described oil nozzle seat adopts 12Cr13 stainless steel material to make.
6. a kind of production wellhead fixation type throttle valve according to claim 2, it is characterized in that: described oil nozzle composite member comprises oil nozzle seat, oil nozzle, oil nozzle spacer shell and sealing ring, on oil nozzle spacer shell cylindrical, be provided with external screw thread, described oil nozzle spacer shell is connected with the screw-internal thread fit arranging on oil nozzle seat inwall by external screw thread, in oil nozzle spacer shell, be provided with oil gas runner, described oil nozzle is arranged on by interference fit on the inwall of oil gas runner, on the cylindrical of oil nozzle seat middle part, be provided with external screw thread, described oil nozzle seat is connected with the screw-internal thread fit of valve pocket inwall by external screw thread, on oil nozzle seat cylindrical below external screw thread, be arranged with the sealing ring sealing.
7. a kind of production wellhead fixation type throttle valve according to claim 2, is characterized in that: the sealing ring that is provided with two seals oil nozzle spacer shell and oil nozzle seat annular space on the cylindrical of oil nozzle spacer shell lower end.
8. a kind of production wellhead fixation type throttle valve according to claim 7, it is characterized in that: described oil gas runner is designed to step-like, comprise interconnective large aperture runner and small-bore runner, described oil nozzle is realized interference fit with large aperture runner and is connected.
9. a kind of production wellhead fixation type throttle valve according to claim 8, is characterized in that: described oil nozzle adopts Hardmetal materials to make, and described oil nozzle seat and oil nozzle spacer shell adopt 12Cr13 stainless steel material to make.
10. a kind of production wellhead fixation type throttle valve according to claim 9, is characterized in that: described oil nozzle spacer shell top cylindrical adopts hexagonal design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152987.4U CN203796222U (en) | 2014-03-31 | 2014-03-31 | Fixed throttle valve used for oil extraction wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152987.4U CN203796222U (en) | 2014-03-31 | 2014-03-31 | Fixed throttle valve used for oil extraction wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796222U true CN203796222U (en) | 2014-08-27 |
Family
ID=51378443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420152987.4U Expired - Lifetime CN203796222U (en) | 2014-03-31 | 2014-03-31 | Fixed throttle valve used for oil extraction wellhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939050A (en) * | 2014-03-31 | 2014-07-23 | 南京伟业机械有限公司 | Fixed throttling valve for oil production well mouth |
-
2014
- 2014-03-31 CN CN201420152987.4U patent/CN203796222U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939050A (en) * | 2014-03-31 | 2014-07-23 | 南京伟业机械有限公司 | Fixed throttling valve for oil production well mouth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |