CN201787094U - Adjustable throttle valve - Google Patents
Adjustable throttle valve Download PDFInfo
- Publication number
- CN201787094U CN201787094U CN2010202894010U CN201020289401U CN201787094U CN 201787094 U CN201787094 U CN 201787094U CN 2010202894010 U CN2010202894010 U CN 2010202894010U CN 201020289401 U CN201020289401 U CN 201020289401U CN 201787094 U CN201787094 U CN 201787094U
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- China
- Prior art keywords
- valve
- cone
- cylindrical surface
- rod
- adjustable
- 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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Abstract
The utility model discloses an adjustable throttle valve, which comprises a valve body, a valve seat, an adjustable valve stem, a pressure relief valve, a valve cover and an adjusting hand wheel. The valve seat is provided with a fluid inlet and a fluid outlet, and the fluid inlet and the fluid outlet are arranged vertical mutually; the adjustable valve stem is contacted with the valve cover through a sealing ring in a sealing way; an opening display sleeve is arranged between the valve cover and the adjustable hand wheel; the valve body and the valve cover are connected through a wing-shaped nut; and the adjustable valve stem comprises a rod body and a cone body, the outer cylindrical surface of the lower end of the rod body and the inner cylindrical surface of the cone body are provided with three inner annular slots and one vertical slot matched mutually, and the outer cylindrical surface of the rod body and the inner cylindrical surface of the cone body are connected through brazing. The weld ports of the cone body and the rod body are arranged in the cone body, thus the fluid erosion and ensuring the reliability of use can be prevented.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of throttle valve of can regulate flow.
Background technique
Adjustable throttle valve is used in the every fluid operation in oil field and is extensively, and the Flow-rate adjustment or the pressure that are mainly used in fluid are regulated, and particularly the adjusting of high pressure, big flow fluid is a requisite fluid control elements in drilling well, test, the underground work.Regulating valve stem is the position of most critical in the adjustable throttle valve, usually be that the cone and the material of cemented carbide is that the stainless body of rod is welded by material, but the regulating valve stem that utilizes method commonly used at present to make, the weld bond of its cone and the body of rod is exposed, in use contact with fluid unavoidably, wash away down at the long-term sand high-pressure liquid that contains, weld bond is usually washed away, thereby the cone of making and the body of rod break away from and the regulating action of forfeiture convection cell, cause serious accident.Therefore, the reliability of adjustable throttle valve is in urgent need to be improved.
The model utility content
The purpose of this utility model provides a kind of adjustable throttle valve, has safe and reliable characteristics.
For achieving the above object, by the following technical solutions:
A kind of adjustable throttle valve comprises valve body, valve seat, regulating valve stem, Decompression valves, valve gap and adjusting handle, and wherein, described valve seat is provided with orthogonal fluid inlet and fluid output; Described regulating valve stem contacts with valve bonnet seal by seal ring; Be provided with aperture between described valve gap and the adjusting handle and show cover; Described valve body is connected by wing nut with valve gap; Described regulating valve stem comprises the body of rod and cone, and the external cylindrical surface of described body of rod lower end and the inner cylindrical surface of cone are processed with three interior circular grooves and cannelure that coincide mutually, and the external cylindrical surface of the described body of rod is connected by brazing with the inner cylindrical surface of cone.
Preferably, described Decompression valves is a needle-valve.
The utility model is by processing three interior circular grooves and cannelure that coincide mutually at the external cylindrical surface of regulating valve stem body of rod lower end and the inner cylindrical surface of cone, the external cylindrical surface of the body of rod and the inner cylindrical surface of cone are welded by brazing, during welding, earlier brazing water is placed in the cone cylindrical hole, insert in the cone back of then cannelure of the body of rod being alignd with the cannelure of cone, insert in the process of cone at the body of rod, weldering water is when filling circular groove, unnecessary weldering water longitudinally concentrated flow goes out cone, till the end face of the body of rod and cone is fitted fully, at this moment, at inner three copper rings and the vertical copper post of forming of cone, the body of rod and cone are firmly welded together, wherein, three copper rings play the effect of the axial freedom of restriction cone, vertically the copper post plays the effect of the rotary freedom of restriction cone, and because copper ring and copper post have certain toughness, in the process of the regulating valve stem vibration that fluid scouring causes, can play certain buffer function, thereby reduced the possibility that the utility model is in use damaged, prolonged its working life; In addition,, do not contact, thereby avoided weld bond to be damaged by fluid scouring for a long time, improved the reliability that the utility model uses greatly with fluid because weld bond is positioned at cone inside.
Description of drawings
According to embodiment and accompanying drawing the utility model is described in further detail below.
Fig. 1 is the cross-sectional view of the described adjustable throttle valve of the utility model embodiment;
Fig. 2 is the regulating valve stem body of rod Facad structure schematic representation and the lateral plan of the described adjustable throttle valve of the utility model embodiment;
Fig. 3 is positive cross-sectional view of the regulating valve stem cone of the described adjustable throttle valve of the utility model embodiment and lateral plan;
Fig. 4 is the regulating valve stem body of rod of the described adjustable throttle valve of the utility model embodiment and the cross-sectional view of cone junction.
Among the figure:
1, valve body; 2, valve seat; 3, regulating valve stem; 4, Decompression valves; 5, seal ring; 6, wing nut; 7, valve gap; 8, aperture shows cover; 9, adjusting handle; 10, fluid inlet; 11, fluid output; 12, the body of rod; 13, cone; 14, interior circular groove; 15, cannelure.
Embodiment
Below in conjunction with accompanying drawing, further specify the utility model by embodiment.
Shown in Fig. 1-4, adjustable throttle valve described in the utility model comprises valve body 1, valve seat 2, regulating valve stem 3, Decompression valves 4, valve gap 7 and adjusting handle 9, and wherein, described valve seat 2 is provided with orthogonal fluid inlet 10 and fluid output 11; Described regulating valve stem 3 contacts with valve gap 7 sealings by seal ring 5; Be provided with aperture between described valve gap 7 and the adjusting handle 9 and show cover 8; Described valve body 1 is connected by wing nut 6 with valve gap 7; Described regulating valve stem 3 comprises the body of rod 12 and cone 13, the external cylindrical surface of the described body of rod 12 lower ends and the inner cylindrical surface of cone 13 are processed with three interior circular grooves 14 and cannelure 15 that coincide mutually, the external cylindrical surface of the described body of rod 12 is connected by brazing with the inner cylindrical surface of cone 13, and described reduction valve 4 is a needle-valve.
After the body of rod 12 and cone 13 welding, the inside of cone 13 forms three copper rings and a vertical copper post, the body of rod 12 and cone 13 are firmly welded together, wherein, the axial freedom of three copper ring restriction cones 13, vertically the copper post limits the rotary freedom of cone 13, and because copper ring and copper post have certain toughness, in the process of regulating valve stem 3 vibrations that fluid scouring causes, can play certain buffer function, thereby reduced the possibility that the utility model is in use damaged, prolonged its working life; In addition,, do not contact, thereby avoided weld bond to be damaged by fluid scouring for a long time, improved the reliability that the utility model uses greatly with fluid because weld bond is positioned at cone 13 inside.
Claims (2)
1. an adjustable throttle valve comprises valve body, valve seat, regulating valve stem, Decompression valves, valve gap and adjusting handle, and wherein, described valve seat is provided with orthogonal fluid inlet and fluid output; Described regulating valve stem contacts with valve bonnet seal by seal ring; Be provided with aperture between described valve gap and the adjusting handle and show cover; Described valve body is connected by wing nut with valve gap; Described regulating valve stem comprises the body of rod and cone, it is characterized in that, the external cylindrical surface of described body of rod lower end and the inner cylindrical surface of cone are processed with three interior circular grooves and cannelure that coincide mutually, and the external cylindrical surface of the described body of rod is connected by brazing with the inner cylindrical surface of cone.
2. adjustable throttle valve according to claim 1 is characterized in that, described Decompression valves is a needle-valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202894010U CN201787094U (en) | 2010-08-12 | 2010-08-12 | Adjustable throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202894010U CN201787094U (en) | 2010-08-12 | 2010-08-12 | Adjustable throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787094U true CN201787094U (en) | 2011-04-06 |
Family
ID=43819057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202894010U Expired - Fee Related CN201787094U (en) | 2010-08-12 | 2010-08-12 | Adjustable throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201787094U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132968A (en) * | 2011-12-01 | 2013-06-05 | 中国海洋石油总公司 | Pressure control device of perforation fracturing test system |
| CN106662262A (en) * | 2014-05-19 | 2017-05-10 | 史密斯国际有限公司 | Pressure pumping valves and methods of making such valves |
| CN108679244A (en) * | 2018-08-07 | 2018-10-19 | 阜宁县石油机械有限公司 | A kind of novel adjustable throttle valve |
| WO2022159946A1 (en) * | 2021-01-25 | 2022-07-28 | Schlumberger Technology Corporation | Needle for a choke valve assembly |
-
2010
- 2010-08-12 CN CN2010202894010U patent/CN201787094U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132968A (en) * | 2011-12-01 | 2013-06-05 | 中国海洋石油总公司 | Pressure control device of perforation fracturing test system |
| CN103132968B (en) * | 2011-12-01 | 2016-03-16 | 中国海洋石油总公司 | The pressure control device of perforating and fracturing test macro |
| CN106662262A (en) * | 2014-05-19 | 2017-05-10 | 史密斯国际有限公司 | Pressure pumping valves and methods of making such valves |
| EP3146246A4 (en) * | 2014-05-19 | 2018-03-21 | Smith International, Inc. | Pressure pumping valves and methods of making such valves |
| US10670153B2 (en) | 2014-05-19 | 2020-06-02 | Smith International, Inc. | Pressure pumping valves and methods of making such valves |
| CN108679244A (en) * | 2018-08-07 | 2018-10-19 | 阜宁县石油机械有限公司 | A kind of novel adjustable throttle valve |
| WO2022159946A1 (en) * | 2021-01-25 | 2022-07-28 | Schlumberger Technology Corporation | Needle for a choke valve assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20130812 |