CN102134980A - Device for sealing plate valve through pretightening - Google Patents
Device for sealing plate valve through pretightening Download PDFInfo
- Publication number
- CN102134980A CN102134980A CN2010101005574A CN201010100557A CN102134980A CN 102134980 A CN102134980 A CN 102134980A CN 2010101005574 A CN2010101005574 A CN 2010101005574A CN 201010100557 A CN201010100557 A CN 201010100557A CN 102134980 A CN102134980 A CN 102134980A
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- China
- Prior art keywords
- plate valve
- valve seat
- torsion spring
- pin
- seat
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- 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.)
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Abstract
The invention provides a device for sealing a plate valve through pretightening. The device comprises the plate valve, a plate valve seat, a torsion spring, a pin, an inner barrel, an outer barrel and a locating pin, wherein the plate valve seat is connected with the outer barrel by a thread; the axis of rotation of the plate valve coincides with the center line of the torsion spring; the plate valve is connected with the plate valve seat by the pin; the locating pin is arranged at one end of the pin; the torsion spring has double-side elasticity; the free ends at the two sides of the torsion spring are inserted into deep holes reserved on the plate valve seat; and the middle extension section of the torsion spring is contacted with the upper end face of the plate valve. The device has the following beneficial effects: before the plate valve closes, the elasticity acts on the upper end face of the plate valve to realize automatic closing of the plate valve; and after the plate valve closes, the lower end face of the plate valve is contacted with the narrow ring surface protruding from the middle of the plate valve seat, and as the contact area of the ring surface is small and the contact surface of the plate valve and the plate valve seat slants relative to the plate valve seat, the impact of the impurities on the contact surface is reduced and sealing is easier to realize, thus ensuring the self-tightness of the plate valve and improving the reliability of other operations.
Description
Technical field
The present invention relates to a kind of gas hydrates coring operation device, belong to the special operation of new forms of energy exploration and development.
Background technology
Carry out circular flap valve that coring operation uses at present and be to rely on torsion spring and self gravitation is closed and pretension.The taper seat of closing the back plate valve closely contacts with plate valve seat inwall under torsion spring elastic force, plate valve self gravitation and the effect of sealed compartment internal pressure, realizes sealing.But owing to contact for face, have foreign material such as mud to be clipped on the contact surface in the process of coring unavoidably between the two, make sealing effectiveness not good, the pressurize success rate is low, can not satisfy actual needs.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of plate valve and solves the pretension sealing problem, and when using the plate valve operation, plate valve places between urceolus and the heat-insulation pressure keeping tube under the stopping of heat-insulation pressure keeping tube.Finish coring, after carrying on the heat-insulation pressure keeping tube, plate valve cuts out under torsion spring and self gravitation effect, contact with the narrow anchor ring that protrudes in the middle of the plate valve seat, tilt, and realizes sealing.The purpose of this invention is to provide a kind of pretension sealing plate valve gear.
For addressing the above problem, a kind of pretension sealing plate valve gear of the present invention comprises plate valve, plate valve seat, button spring, pin, inner core, urceolus and alignment pin.Plate valve seat and urceolus are by being threaded, and plate valve rotation and button spring central lines are connected with the plate valve seat by pin, and pin one end is provided with alignment pin.Torsion spring is made as the bilateral elastic-type, makes plate valve evenly stressed, and torsion spring bilateral free end inserts in the deep hole of plate valve seat reservation, and middle extending segment contacts with the plate valve upper surface.Torsion spring produced elastic force when plate valve was opened, and when plate valve cut out, elastic force acted on the plate valve upper surface, realized closing automatically.After plate valve cuts out, the plate valve lower surface contacts with the narrow anchor ring of protrusion in the middle of the plate valve seat, because the anchor ring contact area is little, and plate valve becomes oblique with the plate contact surface of valve seat with the plate valve seat, making contact surface influenced by foreign material reduces, easier realization sealing, guaranteed plate valve from close property, improve the reliability of other operations.
Description of drawings
Fig. 1. a kind of pretension sealing plate valve gear schematic diagram
1. inner core 2. plate valves 3. torsion springs 4. alignment pins 5. pins 6. urceolus
7. plate valve seat
The specific embodiment
Now the invention will be further described in conjunction with Figure of description.
When adopting the present invention to carry out coring operation, plate valve seat 7 and urceolus 6 are by being threaded, and plate valve 2 rotations and button spring 3 central lines are connected with plate valve seat 7 by pin 5, and pin 5 one ends usefulness alignment pin 4 is fixed.Torsion spring 3 is made as the bilateral elastic-type, makes plate valve 2 evenly stressed, and torsion spring 3 bilateral free ends insert in the deep hole of plate valve seat 7 reservations, and middle extending segment contacts with plate valve 2 upper surfaces.Torsion spring 3 produced elastic force when plate valve 2 was opened, and when plate valve 2 cut out, elastic force acted on plate valve 2 upper surfaces, realized closing automatically.After plate valve 2 cut out, plate valve 2 lower surfaces contacted with the narrow anchor ring of protrusion in the middle of the plate valve seat 7, because the anchor ring contact area is little, and plate valve 2 is oblique with 7 one-tenth of plate valve seats with plate valve seat 7 contact surfaces, makes contact surface influenced by foreign material and reduces, easier realization sealing.Guaranteed plate valve 2 from close property, improve the reliability of other operations.
Claims (4)
1. a pretension sealing plate valve gear comprises plate valve (2), plate valve seat (7), button spring (3), pin (5), inner core (1), urceolus (6) and alignment pin (4), it is characterized in that: plate valve seat (7) and urceolus (6) are by being threaded, plate valve (2) rotation and button spring (3) central lines, be connected with plate valve seat (7) by pin (5), pin (5) one ends are provided with alignment pin (4), torsion spring (3) is made as the bilateral elastic-type, torsion spring (3) bilateral free end inserts in the deep hole of plate valve seat (7) reservation, middle extending segment contacts with plate valve (2) upper surface, and plate valve (2) becomes oblique with the contact surface of plate valve seat (7) with plate valve seat (7).
2. a kind of pretension sealing plate valve gear according to claim 1 is characterized in that being made as the bilateral elastic-type at torsion spring (3), and torsion spring (3) bilateral free end inserts in the deep hole of plate valve seat (7) reservation, and middle extending segment contacts with plate valve (2) upper surface.
3. a kind of pretension sealing plate valve gear according to claim 1, it is characterized in that plate valve (2) cuts out after, the narrow anchor ring that protrudes in the middle of plate valve (2) lower surface and the plate valve seat (7) contacts.
4. a kind of pretension sealing plate valve gear according to claim 1 it is characterized in that protruding narrow anchor ring in the middle of the plate valve seat (7), and plate valve (2) becomes oblique with the contact surface of plate valve seat (7) with plate valve seat (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010100557.4A CN102134980B (en) | 2010-01-25 | 2010-01-25 | Device for sealing plate valve through pretightening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010100557.4A CN102134980B (en) | 2010-01-25 | 2010-01-25 | Device for sealing plate valve through pretightening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102134980A true CN102134980A (en) | 2011-07-27 |
| CN102134980B CN102134980B (en) | 2014-07-16 |
Family
ID=44294888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010100557.4A Active CN102134980B (en) | 2010-01-25 | 2010-01-25 | Device for sealing plate valve through pretightening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102134980B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443061A (en) * | 2014-09-28 | 2016-03-30 | 中国石油化工集团公司 | Lower end pressure enclosing mechanism of coring tool with large drift diameter |
| CN107366540A (en) * | 2017-08-17 | 2017-11-21 | 北京探矿工程研究所 | Arc plate valve type sealing device |
| CN108895168A (en) * | 2018-08-13 | 2018-11-27 | 四川大学 | Pressure maintaining cylinder lower end sealing structure |
| CN108952608A (en) * | 2018-08-13 | 2018-12-07 | 四川大学 | The reverse turning bed structure that automatic trigger docking is opened |
| CN109113610A (en) * | 2018-08-13 | 2019-01-01 | 四川大学 | Core fidelity cabin |
| WO2020093415A1 (en) * | 2018-11-08 | 2020-05-14 | 深圳大学 | Core barrel sealing structure capable of increasing sealing-specific pressure |
| CN113738298A (en) * | 2021-09-10 | 2021-12-03 | 中国地质大学（北京） | Pressure-maintaining coring device |
| CN113982515A (en) * | 2021-10-28 | 2022-01-28 | 中国地质大学（北京） | Pressure-maintaining coring device |
Citations (4)
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|---|---|---|---|---|
| GB1536743A (en) * | 1975-04-10 | 1978-12-20 | Dresser Ind | Apparatus for providing a packaged core |
| US4142594A (en) * | 1977-07-06 | 1979-03-06 | American Coldset Corporation | Method and core barrel apparatus for obtaining and retrieving subterranean formation samples |
| CN102182454A (en) * | 2011-04-12 | 2011-09-14 | 吉林大学 | Mechanism for quickly forming ice valve and improving strength of same |
| CN102409998A (en) * | 2011-10-28 | 2012-04-11 | 中国海洋石油总公司 | Downhole safety valve |
-
2010
- 2010-01-25 CN CN201010100557.4A patent/CN102134980B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1536743A (en) * | 1975-04-10 | 1978-12-20 | Dresser Ind | Apparatus for providing a packaged core |
| US4142594A (en) * | 1977-07-06 | 1979-03-06 | American Coldset Corporation | Method and core barrel apparatus for obtaining and retrieving subterranean formation samples |
| CN102182454A (en) * | 2011-04-12 | 2011-09-14 | 吉林大学 | Mechanism for quickly forming ice valve and improving strength of same |
| CN102409998A (en) * | 2011-10-28 | 2012-04-11 | 中国海洋石油总公司 | Downhole safety valve |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443061A (en) * | 2014-09-28 | 2016-03-30 | 中国石油化工集团公司 | Lower end pressure enclosing mechanism of coring tool with large drift diameter |
| CN105443061B (en) * | 2014-09-28 | 2017-10-10 | 中国石油化工集团公司 | Big orifice coring tool lower end pressure seal mechanism |
| CN107366540A (en) * | 2017-08-17 | 2017-11-21 | 北京探矿工程研究所 | Arc plate valve type sealing device |
| CN107366540B (en) * | 2017-08-17 | 2024-06-04 | 北京探矿工程研究所 | Arc plate valve type sealing device |
| WO2020034367A1 (en) * | 2018-08-13 | 2020-02-20 | 四川大学 | Automatic triggered docking and opening flip board structure |
| CN109113610A (en) * | 2018-08-13 | 2019-01-01 | 四川大学 | Core fidelity cabin |
| CN108952608A (en) * | 2018-08-13 | 2018-12-07 | 四川大学 | The reverse turning bed structure that automatic trigger docking is opened |
| CN108895168B (en) * | 2018-08-13 | 2023-10-03 | 四川大学 | Lower end sealing structure of pressure maintaining cylinder |
| CN108895168A (en) * | 2018-08-13 | 2018-11-27 | 四川大学 | Pressure maintaining cylinder lower end sealing structure |
| WO2020093415A1 (en) * | 2018-11-08 | 2020-05-14 | 深圳大学 | Core barrel sealing structure capable of increasing sealing-specific pressure |
| US11761283B2 (en) | 2018-11-08 | 2023-09-19 | Shenzhen University | Core barrel sealing structure capable of increasing sealing-specific pressure |
| CN113738298A (en) * | 2021-09-10 | 2021-12-03 | 中国地质大学（北京） | Pressure-maintaining coring device |
| CN113982515A (en) * | 2021-10-28 | 2022-01-28 | 中国地质大学（北京） | Pressure-maintaining coring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102134980B (en) | 2014-07-16 |
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