CN112761550A - Hydraulic elevator control mechanism with function of sensing entering of tubular column - Google Patents
Hydraulic elevator control mechanism with function of sensing entering of tubular column Download PDFInfo
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- CN112761550A CN112761550A CN201910998082.6A CN201910998082A CN112761550A CN 112761550 A CN112761550 A CN 112761550A CN 201910998082 A CN201910998082 A CN 201910998082A CN 112761550 A CN112761550 A CN 112761550A
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- hydraulic
- hydraulic elevator
- trigger pin
- control mechanism
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- 230000006698 induction Effects 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
- E21B19/06—Elevators, i.e. rod- or tube-gripping devices
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a hydraulic elevator control mechanism with a function of sensing entry of a pipe column, which comprises: the hydraulic reversing valve comprises a trigger pin, a guide pin, a hydraulic reversing valve and a valve block, wherein the trigger pin is horizontally arranged at the lower part of the valve block; a groove is formed in the trigger pin; the guide pin is vertically arranged in the valve block, and the lower end of the guide sheath is abutted against the trigger pin. The hydraulic elevator system effectively solves the problems of well mouth explosion-proof safety, wire breakage and the like caused by the fact that the existing hydraulic elevator has no pipe column entering judging function, more control pipelines or proximity switches are adopted. The hydraulic elevator control mechanism provided by the invention is simple in structure, compact in structure, good in applicability, and safer and more convenient.
Description
Technical Field
The invention belongs to the technical field of oil exploitation equipment, relates to a hydraulic elevator control mechanism with a function of sensing entry of a pipe column, and particularly relates to application of a novel hydraulic elevator control system in oil field drilling and workover operation.
Background
In the process of oil drilling, an elevator is a tool for hoisting pipes such as drill pipes, oil pipes and casing pipes. Currently, the hydraulic elevator applied to the oil field mostly has no induction pipe column entering function, the hydraulic elevator with the pipe column entering induction function in the prior art mostly adopts a proximity switch induction mode, a proximity switch needs to be connected with a power supply, the explosion-proof level requirement is high in the oil-gas field application, once leakage occurs, a great potential safety hazard exists, and the proximity switch is easily influenced by the external environment and is extremely unstable.
Disclosure of Invention
The invention aims to provide a hydraulic elevator control mechanism with a function of sensing entry of a pipe column, aiming at overcoming the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hydraulic elevator control mechanism with induction string entry, comprising: the hydraulic reversing valve comprises a trigger pin, a guide pin, a hydraulic reversing valve and a valve block, wherein the trigger pin is horizontally arranged at the lower part of the valve block; the trigger pin can move in the horizontal direction in the valve block; a groove is formed in the trigger pin; the guide pin is vertically arranged in the valve block, the guide pin can move in the valve block along the vertical direction, and the lower end of the guide sheath is abutted against the trigger pin.
One end of the trigger pin is connected with a spring.
The upper end of the guide pin is connected with the hydraulic reversing valve.
The hydraulic reversing valve is arranged in the valve block.
And a valve core is arranged in the hydraulic reversing valve.
The working principle of the hydraulic elevator control mechanism with the function of sensing the entering of the pipe column provided by the invention is as follows: when the hydraulic elevator needs to be closed, a pipe column firstly enters the elevator, when the pipe column touches a trigger pin, the trigger pin pushes the pipe column inwards to move by means of the pushing force of the pipe column, a groove mechanism is arranged on the trigger pin, when the trigger pin moves for a corresponding distance, the guide pin is driven to enable a contact of the guide pin to be in contact with a high point (a non-groove mechanism) of the trigger pin, the trigger pin relatively moves upwards to guide a valve core of a reversing valve to move upwards, the reversing valve reverses, and therefore a hydraulic oil path is controlled to be communicated, and the hydraulic oil path is transmitted to a corresponding pressure sensor and fed back to a related operating system. When the hydraulic elevator releases the pipe column, the spring can reset the trigger pin, so that the guide pin returns to the position of the groove mechanism of the trigger pin, the valve core of the hydraulic reversing valve is reset simultaneously, the oil way is cut off, the pressure of the corresponding pressure sensor is lost, and the feedback signal correspondingly disappears.
The invention has the following beneficial effects:
the mechanism provided by the invention is part of controlling the hydraulic elevator, but the mechanism determines that the hydraulic elevator can realize the function of sensing the entering of a pipe column. Compared with the prior art, the hydraulic elevator system effectively solves the problems of well head explosion-proof safety, wire breakage and the like caused by the fact that the existing hydraulic elevator has no induction pipe column entering judging function or the approach switch is adopted to judge when the pipe column enters in the prior art; the system provided by the invention has good applicability and is safer and more convenient.
Drawings
FIG. 1 is a schematic diagram of a hydraulic elevator control mechanism having a function of sensing entry of a pipe string in an example embodiment of the invention.
FIG. 2 is a schematic illustration of the sensing string not entering the hydraulic elevator in an example embodiment of the invention.
FIG. 3 is a schematic view of a sensing pipe string entering a hydraulic elevator in an example embodiment of the invention.
Reference numerals:
1. a trigger pin, 2, a guide pin,
3. a hydraulic reversing valve, 4, a valve block,
5. a spring, 6 and a pipe column,
7. an elevator, 8, a valve core,
11. a groove mechanism.
Detailed Description
The invention will be further illustrated with reference to the following specific examples.
A hydraulic elevator control mechanism with a function of sensing entry of a pipe string as shown in fig. 1 comprises: the hydraulic reversing valve comprises a trigger pin 1, a guide pin 2, a hydraulic reversing valve 3 and a valve block 4, wherein the trigger pin 1 is horizontally arranged at the lower part of the valve block 4; the trigger pin 1 is movable in the horizontal direction inside the valve block 4; a groove is arranged on the trigger pin 1; the guide pin 2 is vertically arranged in the valve block 4, the guide pin 2 can move in the valve block along the vertical direction, and the lower end of the guide sheath 2 is abutted against the trigger pin 1.
In a preferred embodiment of the invention, a spring 5 is attached to one end of the trigger pin 1.
In a preferred embodiment of the invention, the upper end of the guide pin 2 is connected to a hydraulic directional valve 3.
In a preferred embodiment of the invention, the hydraulic directional control valve 3 is disposed in a valve block 4.
In a preferred embodiment of the invention, the hydraulic directional control valve 3 is internally provided with a valve core 8.
The working principle of the hydraulic elevator control mechanism with the function of sensing the entering of the pipe column provided by the invention is as follows: as shown in fig. 2, when the hydraulic elevator needs to be closed, the pipe string 6 firstly enters the elevator 7, when the pipe string 6 touches the trigger pin 1, the trigger pin 1 pushes the pipe string 6 inwards to move by means of the pushing force of the pipe string 1, a groove mechanism 11 is designed on the trigger pin 1, when the trigger pin 1 moves for a corresponding distance, the guide pin 2 is driven, the contact point of the guide pin 2 is moved out of the groove mechanism 11 and is contacted with the high point of the trigger pin 1 (as shown in fig. 3), the trigger pin 2 relatively moves upwards to guide the valve core 8 of the reversing valve 3 to move upwards, and the reversing valve 3 reverses, so that the hydraulic oil path is controlled to be communicated, and the hydraulic oil path is transmitted to a corresponding pressure sensor and fed back to a related operating system. When the hydraulic elevator releases the pipe column 6, the spring 5 resets the trigger pin 1, so that the guide pin 2 returns to the position of the groove mechanism 11 of the trigger pin 1, the valve core 8 of the hydraulic reversing valve 3 is reset at the same time, the oil path is cut off, the pressure of the corresponding pressure sensor is lost, and the feedback signal correspondingly disappears.
The embodiments described above are intended to facilitate one of ordinary skill in the art in understanding and using the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art should make modifications and alterations without departing from the scope of the present invention.
Claims (5)
1. A hydraulic elevator control mechanism with induction string entry, comprising: trigger pin (1), guide pin (2), hydraulic pressure switching-over valve (3) and valve block (4), its characterized in that: the trigger pin (1) is horizontally arranged at the lower part of the valve block (4); a groove (11) is arranged on the trigger pin (1); the guide pin (2) is vertically arranged in the valve block (4), and the lower end of the guide sheath (2) is abutted against the trigger pin (1).
2. The hydraulic elevator control mechanism having a function of sensing pipe string entry as claimed in claim 1, wherein: one end of the trigger pin (1) is connected with a spring (5).
3. The hydraulic elevator control mechanism having a function of sensing pipe string entry as claimed in claim 1, wherein: the upper end of the guide pin (2) is connected with the hydraulic reversing valve (3).
4. The hydraulic elevator control mechanism having a function of sensing pipe string entry as claimed in claim 1, wherein: the hydraulic reversing valve (3) is arranged in the valve block (4).
5. The hydraulic elevator control mechanism having a function of sensing pipe string entry as claimed in claim 1, wherein: and a valve core (8) is arranged in the hydraulic reversing valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910998082.6A CN112761550A (en) | 2019-10-21 | 2019-10-21 | Hydraulic elevator control mechanism with function of sensing entering of tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910998082.6A CN112761550A (en) | 2019-10-21 | 2019-10-21 | Hydraulic elevator control mechanism with function of sensing entering of tubular column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112761550A true CN112761550A (en) | 2021-05-07 |
Family
ID=75691640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910998082.6A Pending CN112761550A (en) | 2019-10-21 | 2019-10-21 | Hydraulic elevator control mechanism with function of sensing entering of tubular column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112761550A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020153045A1 (en) * | 2001-04-23 | 2002-10-24 | Yakov Beyrak | Hydraulic valve with a position sensor |
| US20070228753A1 (en) * | 2006-03-30 | 2007-10-04 | Robert Dugal | Remotely operated elevator and method |
| US20120261528A1 (en) * | 2009-11-23 | 2012-10-18 | Blohm + Voss Repair Gmbh | Device for securing pipes having various diameters |
| CN104074482A (en) * | 2014-06-13 | 2014-10-01 | 江苏如通石油机械股份有限公司 | Elevator spider |
| US9303470B1 (en) * | 2014-02-25 | 2016-04-05 | Larry G. Keast | Drilling rig with top drive with dual opening elevator |
| CN106761479A (en) * | 2017-01-13 | 2017-05-31 | 黄山市汇润机械有限公司 | A kind of hydraulic elevator proximity switch triggering pin protection device |
| US20180340379A1 (en) * | 2017-05-25 | 2018-11-29 | Forum Us, Inc. | Elevator system for supporting a tubular member |
| CN209011775U (en) * | 2018-09-21 | 2019-06-21 | 兰州兰石石油装备工程股份有限公司 | The trigger mechanism of hydraulic elevator system |
-
2019
- 2019-10-21 CN CN201910998082.6A patent/CN112761550A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020153045A1 (en) * | 2001-04-23 | 2002-10-24 | Yakov Beyrak | Hydraulic valve with a position sensor |
| US20070228753A1 (en) * | 2006-03-30 | 2007-10-04 | Robert Dugal | Remotely operated elevator and method |
| US20120261528A1 (en) * | 2009-11-23 | 2012-10-18 | Blohm + Voss Repair Gmbh | Device for securing pipes having various diameters |
| US9303470B1 (en) * | 2014-02-25 | 2016-04-05 | Larry G. Keast | Drilling rig with top drive with dual opening elevator |
| CN104074482A (en) * | 2014-06-13 | 2014-10-01 | 江苏如通石油机械股份有限公司 | Elevator spider |
| CN106761479A (en) * | 2017-01-13 | 2017-05-31 | 黄山市汇润机械有限公司 | A kind of hydraulic elevator proximity switch triggering pin protection device |
| US20180340379A1 (en) * | 2017-05-25 | 2018-11-29 | Forum Us, Inc. | Elevator system for supporting a tubular member |
| CN209011775U (en) * | 2018-09-21 | 2019-06-21 | 兰州兰石石油装备工程股份有限公司 | The trigger mechanism of hydraulic elevator system |
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