CN101408096A - Visual dark rod flat plate gate valve - Google Patents
Visual dark rod flat plate gate valve Download PDFInfo
- Publication number
- CN101408096A CN101408096A CNA2007101756622A CN200710175662A CN101408096A CN 101408096 A CN101408096 A CN 101408096A CN A2007101756622 A CNA2007101756622 A CN A2007101756622A CN 200710175662 A CN200710175662 A CN 200710175662A CN 101408096 A CN101408096 A CN 101408096A
- Authority
- CN
- China
- Prior art keywords
- valve
- indicating
- gate valve
- vernier
- rod
- 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.)
- Pending
Links
Images
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention relates to a visual inside stem flat gate valve, belongs to the technical field of petroleum drilling and production wellhead equipment and comprises a valve body (17), a valve seat (16), a gate board (15), a valve rod (14), a valve cover (12), a pressure cap (11), an indicating vernier (6), a hand wheel (5) and the like. The visual inside stem flat gate valve is characterized in that the upper end and the lower end of the valve rod (14) are provided with two sections of screw threads with the same direction of rotation and different screw pitches; the screw thread of the lower end is a trapezoidal screw thread and is connected with a hoisting nut (13) which is arranged on the gate board (15); the screw thread of the upper end is a triangular screw thread and the indicating vernier (6) is sleeved on the valve rod (14) through the triangular screw thread; an indicating sleeve (7) is a metal cylinder, a vertical opening is arranged at one side of the indicating sleeve (7) and two sides of the opening are marked with measuring calibration of openness; the indicating sleeve (7) is sleeved at the outside of the indicating vernier (6) and fixed on the pressure cap (11); the outer part of the indicating sleeve (7) is respectively provided with a transparent cover (3) and a protection cover (1). The flat gate valve has the characteristics of good bearing performance of the valve body, small torque of the switch, being capable of indicating the switch state, strong environmental suitability, safety and reliability.
Description
Technical field:
The present invention relates to a kind of visual dark rod flat plate gate valve, belong to petroleum engineering wellhead equipment technical field.
Background technology:
(gas) wellhead assembly that recovers the oil is oil (gas) field a kind of mechanical bearing device commonly used, is used to control and guiding gas stream, hangs between oil pipe, sealing production casing and the oil pipe annular space and creates operating condition under the testing well.Gate valve is being undertaken and is being opened or block pipeline medium and control high-pressure medium flows to assigned address according to artificial needs task as the core component of (gas) wellhead assembly that recovers the oil.Its structure, operability, security reliability etc. directly affect the safety and the reliability of whole wellhead assembly.
In (gas) wellhead assembly that recovers the oil, normally used is flat gate valve.Flat gate valve is divided into rising stem (RS.) formula and blind rod type two big classes.Rising stem (RS.) formula flat gate valve can be judged whether open and close of gate valve from appearance, and is very directly perceived, but its general structure complexity, cost is very high.The blind rod type flat gate valve is littler, in light weight than rising stem (RS.) formula flat gate valve volume, and cost is low.But the shortcoming of blind rod type flat gate valve maximum is not see whether open and close of gate valve from appearance, makes the operator be difficult to adapt to, and this has just restricted the popularization and the use of blind rod type flat gate valve.
At this significant disadvantages of blind rod type flat gate valve, have the people openly to propose some improvement projects, but all there is the deficiency of following three aspects in these improvement projects: one, display device structure complexity, processing and assembling difficulty.The aperture size that two, can not quantitatively show valve.Three, can not adapt to the on-the-spot abominable working environment of oil recovery (gas), be subjected to the destruction of corrosive gas and dust storm easily.
Summary of the invention:
In order to overcome the deficiencies in the prior art part, the object of the present invention is to provide a kind of visual dark rod flat plate gate valve, it is good to make it to have the valve body load performance, and switching torque is little, accurately indicator cock state, characteristics that environmental suitability is strong, safe and reliable.
The present invention realizes above-mentioned purpose by following technical solution.
In the structure of visual dark rod flat plate gate valve, be provided with valve body (17), valve seat (16), flashboard (15), valve rod (14), valve gap (12), pressure cap (11), thrust ball bearing (10), indication vernier (6), handwheel (5) etc.Be provided with two sections screw threads that rotation direction is identical, pitch is different at the two ends up and down of valve rod (14).The screw thread of lower end is a trapezoidal thread, is connected with hoisting nut (13), and pitch is bigger.The screw thread of upper end is a triangle thread, is connected with indication vernier (6), and pitch is less.The top of valve rod (14) is a hexagonal structure, is connected to a fixed with handwheel (5).Hoisting nut (13) is installed in the upper end of flashboard (15), and valve rod (14) is connected with flashboard (15) by hoisting nut (13).The inner ring of indication vernier (6) also is provided with triangle thread, and indication vernier (6) is enclosed within on the valve rod (14) by triangle thread.Indication sleeve (7) is a metallic cylinder, has a vertical opening in the one side, indicates aperture tolerance scale in the both sides of opening.Indication sleeve (7) is enclosed within outside the indication vernier (6) and is fixed on the pressure cap (11).Outside at indication sleeve (7) is separately installed with translucent cover (3) and protective cover (1).
The present invention compared with prior art has following beneficial effect:
1, valve body processes with the forged steel blank, has improved high pressure and the corrosion resistant ability of bearing.
2, terminal with compact integral structure, processing and easy to assembly, switching torque is little, has saved cost, has improved reliability.
3, the on off state of gate valve and aperture can directly read, and have increased protector, and environmental suitability is strong, has improved operability.
Description of drawings:
Fig. 1 is the general structure schematic diagram of visual dark rod flat plate gate valve.
Fig. 2 is the structural representation of the valve stem part of visual dark rod flat plate gate valve.
Fig. 3 is the installation site schematic diagram of the indication sleeve part of visual dark rod flat plate gate valve.
Fig. 4 is the structural representation of the indication vernier part of visual dark rod flat plate gate valve.
Fig. 5 is the structural representation of the indication sleeve part of visual dark rod flat plate gate valve.
In the drawings: 1. protective cover, 2. hex screw, 3. translucent cover, 4. asbestos gasket, 5. handwheel, 6. indication vernier, 7. indication sleeve, 8. rubber seal, 9. hex screw, 10. thrust ball bearing, 11. pressure caps, 12. valve gaps, 13. hoisting nut, 14. valve rods, 15. flashboards, 16. valve seats, 17. valve bodies.
The specific embodiment:
Visual dark rod flat plate gate valve of the present invention is made up of valve body (17), valve seat (16), flashboard (15), valve rod (14), hoisting nut (13), valve gap (12), pressure cap (11), thrust ball bearing (10), indication vernier (6), handwheel (5) etc.Valve body (17) processes with the forged steel blank, and the bottom of flashboard (15) has pod apertures, and its aperture is slightly larger than the inside nominal diameter of gate valve.Valve rod (14) adopts monolithic construction, is provided with two sections screw threads that rotation direction is identical, pitch is different at the two ends up and down of valve rod (14).The screw thread of lower end is a trapezoidal thread, is connected with hoisting nut (13), and pitch is bigger.The screw thread of upper end is a triangle thread, is connected with indication vernier (6), and pitch is less.The top of valve rod (14) is a hexagonal structure, is connected to a fixed with handwheel (5).Hoisting nut (13) is installed in the upper end of flashboard (15), and valve rod (14) is connected with flashboard (15) by hoisting nut (13).The inner ring of indication vernier (6) also is provided with triangle thread, and indication vernier (6) is enclosed within on the valve rod (14) by triangle thread, forms a rotary motion pair.Because the trapezoidal thread at the two ends up and down of valve rod (14) is identical with the rotation direction of triangle thread, when driving valve rod (14) rotation by handwheel (5), just can guarantee flashboard (15) and the motion of indication vernier (6) synchronization lifting, reach the purpose of accurate indication gate valve aperture.Indication sleeve (7) be a metallic cylinder, has a vertical opening in the one side, indicates aperture in the both sides of opening and measures scale, is convenient to that the observer observes and record.The opening restriction indication vernier (6) of indication sleeve (7) is done definitely and is rotatablely moved, thereby realizes indicating vernier (6) to do rectilinear motion up and down.Indication sleeve (7) is enclosed within outside the indication vernier (6), is fixed on the pressure cap (11) by 4 hex screws (2) uniform on the circumference.Translucent cover (3) adopts transparent glass fiber material to make, be installed in the outside of indication sleeve (7), protective cover (1) adopts etch-proof steel material to make, have peep hole in the one side, be installed in the outside of translucent cover (3), and assemble by matched in clearance between the pressure cap (11), and be positioned on the pressure cap (11) with 3 hex screws (9) uniform on the circumference.
Claims (4)
1, a kind of visual dark rod flat plate gate valve, form by valve body (17), valve seat (16), flashboard (15), valve rod (14), valve gap (12), pressure cap (11), thrust ball bearing (10), indication vernier (6), handwheel (5) etc., it is characterized in that being provided with two sections screw threads that rotation direction is identical, pitch is different at the two ends up and down of valve rod (14); The screw thread of lower end is a trapezoidal thread, is connected with hoisting nut (13), and pitch is bigger; The screw thread of upper end is a triangle thread, is connected with indication vernier (6), and pitch is less; The top of valve rod (14) is a hexagonal structure, is connected to a fixed with handwheel (5); Indication sleeve (7) is enclosed within outside the indication vernier (6) and is fixed on the pressure cap (11).
2, visual dark rod flat plate gate valve according to claim 1 is characterized in that hoisting nut (13) is installed in the upper end of flashboard (15), and valve rod (14) is connected with flashboard (15) by hoisting nut (13).
3, visual dark rod flat plate gate valve according to claim 2 is characterized in that indicating the inner ring of vernier (6) also to be provided with triangle thread, and indication vernier (6) is enclosed within on the valve rod (14) by triangle thread.
4, visual dark rod flat plate gate valve according to claim 3, it is characterized in that indicating sleeve (7) to be metallic cylinder, have a vertical opening in the one side, indicate aperture tolerance scale in the both sides of opening, be separately installed with translucent cover (3) and protective cover (1) in the outside of indication sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101756622A CN101408096A (en) | 2007-10-10 | 2007-10-10 | Visual dark rod flat plate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101756622A CN101408096A (en) | 2007-10-10 | 2007-10-10 | Visual dark rod flat plate gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101408096A true CN101408096A (en) | 2009-04-15 |
Family
ID=40571278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101756622A Pending CN101408096A (en) | 2007-10-10 | 2007-10-10 | Visual dark rod flat plate gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101408096A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947778A (en) * | 2010-09-22 | 2011-01-19 | 上海交通大学 | Wheel-type obstacle detouring mechanism for wall climbing robot with adjustable magnetic adsorption force |
| CN102031944A (en) * | 2009-09-24 | 2011-04-27 | 江苏宏泰石化机械有限公司 | Two-section nonrising stem flat valve with switch indicator |
| CN103015949A (en) * | 2012-12-18 | 2013-04-03 | 陕西航天泵阀科技集团有限公司 | Gas well gas production tree |
| CN103016162A (en) * | 2012-11-12 | 2013-04-03 | 浙江博力机电制造有限公司 | Constant-pressure automobile exhaust auxiliary brake device |
| CN103277528A (en) * | 2013-06-05 | 2013-09-04 | 温州市捷宇阀门制造有限公司 | Low-torque quick-opening gate valve stem structure |
| CN103411025A (en) * | 2013-08-23 | 2013-11-27 | 中国海洋石油总公司 | Visual position indicator for hydraulic actuating mechanism of deep water gate valve |
| CN104265991A (en) * | 2014-09-16 | 2015-01-07 | 西南石油大学 | Visual device convenient for observing opening and closing states of hand-operated flat valve |
| CN104344002A (en) * | 2013-08-02 | 2015-02-11 | 中国石油天然气股份有限公司 | Closed waterproof thermal recovery gate valve |
-
2007
- 2007-10-10 CN CNA2007101756622A patent/CN101408096A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031944A (en) * | 2009-09-24 | 2011-04-27 | 江苏宏泰石化机械有限公司 | Two-section nonrising stem flat valve with switch indicator |
| CN101947778A (en) * | 2010-09-22 | 2011-01-19 | 上海交通大学 | Wheel-type obstacle detouring mechanism for wall climbing robot with adjustable magnetic adsorption force |
| CN103016162A (en) * | 2012-11-12 | 2013-04-03 | 浙江博力机电制造有限公司 | Constant-pressure automobile exhaust auxiliary brake device |
| CN103015949A (en) * | 2012-12-18 | 2013-04-03 | 陕西航天泵阀科技集团有限公司 | Gas well gas production tree |
| CN103277528A (en) * | 2013-06-05 | 2013-09-04 | 温州市捷宇阀门制造有限公司 | Low-torque quick-opening gate valve stem structure |
| CN104344002A (en) * | 2013-08-02 | 2015-02-11 | 中国石油天然气股份有限公司 | Closed waterproof thermal recovery gate valve |
| CN103411025A (en) * | 2013-08-23 | 2013-11-27 | 中国海洋石油总公司 | Visual position indicator for hydraulic actuating mechanism of deep water gate valve |
| CN103411025B (en) * | 2013-08-23 | 2016-01-20 | 中国海洋石油总公司 | A kind of virtualized location indicator for deep water gate valve hydraulic actuator |
| CN104265991A (en) * | 2014-09-16 | 2015-01-07 | 西南石油大学 | Visual device convenient for observing opening and closing states of hand-operated flat valve |
| CN104265991B (en) * | 2014-09-16 | 2016-06-15 | 西南石油大学 | A kind of visualization device being easy to observe manual flat valve open/close states |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101408096A (en) | Visual dark rod flat plate gate valve | |
| US11339809B2 (en) | Linear actuator with rotary positional output | |
| CN201121508Y (en) | Visible hidden lever flat gate valve | |
| CN203175532U (en) | Movable type underground corrosion monitoring device for acid gas well | |
| WO2024082656A1 (en) | Fireproof remotely operating mechanism | |
| CN202928755U (en) | Device for testing seepage of non-return valve | |
| CN105650258A (en) | Oil level display device for rail vehicle gear case | |
| CN200971768Y (en) | Stop valve capable of measuring pressure | |
| CN201487267U (en) | Copper gate valve | |
| CN204459401U (en) | A kind of freedom from repairs full waterproof type turning valve drive unit | |
| CN201241991Y (en) | Jaw opening indicator of non-rising stem valve | |
| CN206891537U (en) | A kind of water-depth measurement device | |
| CN107084271B (en) | Ammonia leakage intelligent control valve | |
| CN211117905U (en) | Economical and practical hydraulic driving mechanism for plug valve | |
| CN111289027B (en) | Multifunctional protection device for instrument | |
| CN211693752U (en) | Bellows valve with leakage detection function | |
| CN110375111B (en) | Valve opening indicating device | |
| CN205578691U (en) | Rail vehicle is oil level display device for gear box | |
| CN215891345U (en) | Oil cap structure suitable for quick installation of oxygen valve | |
| CN101839792A (en) | Novel pneumatic hydraulic system for detection | |
| CN108590632B (en) | Downhole sucker rod string parameter tester | |
| CN202579965U (en) | Screw-plug type transparent oil pointer | |
| CN203585527U (en) | FC flat valve with indicating mechanism | |
| CN112824840A (en) | Oil level indicator | |
| CN201031807Y (en) | Testing apparatus for testing shielding electric pump rotate direction |
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 |
Open date: 20090415 |