CN103806866A - Well mouth remote control adjustment and urgent switching-off protection device - Google Patents
Well mouth remote control adjustment and urgent switching-off protection device Download PDFInfo
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- CN103806866A CN103806866A CN201210441087.7A CN201210441087A CN103806866A CN 103806866 A CN103806866 A CN 103806866A CN 201210441087 A CN201210441087 A CN 201210441087A CN 103806866 A CN103806866 A CN 103806866A
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- well head
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Abstract
The invention relates to a well mouth remote control adjustment and urgent switching-off protection device. The device comprises a valve, a first pressure sensor arranged in a valve front pipeline and a controller connected with the first pressure sensor. A drive motor is further connected to the controller and is connected with a valve rod of the valve. The pressure sensor, the controller and the drive motor are connected with a power supply device. A pressure switch is further connected to the pipeline. The device has the advantages that after a valve opening instruction is received by the device, the valve opening of the valve is automatically adjusted through an adjustment signal sent by a pressure transmitter of the valve, and peripheral control equipment and center control instructions are not needed. The device is simple in control structure, safe and reliable, and solves the problem that downstream pipelines and equipment are impacted and damaged by direct and fast opening in the prior art, and well opening efficiency and accuracy are improved. Overpressure protection and underpressure protection are completed through the mechanical balancing principle of the device, external energy sources are not needed, and the device is safe and reliable.
Description
Technical field
The present invention relates to Oil/gas Well valve control field, be specifically related to a kind of well head and far control adjusting emergency cut-off protective device.
Background technology
China's oil-gas field development is in Rapid development stage at present, and safe, reliable, efficient, intelligent management is the important development direction in gas field.In order to reach these requirements, need install in natural gas well head christmas tree downstream a collection intelligence regulate drive a well, a kind of device of long-range closing well, ultra under-pressure protection.And in use there is following problem in the like product of existing market:
1. existing like product valve used is stop valve pattern, and flow resistance coefficient is large, and pipeline is had to throttling, and frozen block easily occurs.And pressure directly acts on flap, in the time driving a well, must manually first open bypass valve to scene and carry out equilibrium pressure, complex operation, cannot realize Long-distance Control.
2. while driving valve, cannot regulate aperture, in the time opening, can make downstream pressure increase suddenly, easily upstream device be impacted and damaged.
Because gas field is mostly in remote desert region, wind energy or solar powered can only be leaned in scene.The power consumption of executing agency that existing like product uses is very large, and on-the-spot power supply cannot meet the demands, and service behaviour is very unstable, is difficult to management.
Summary of the invention
For the deficiencies in the prior art part, the invention provides a kind of ball valve pattern valve that adopts, its advantage is to adopt upper-mounting type ball valve, and sets up out valve regulation function.By automatic control system, the pressure after to valve automatically adjusts the voltage signal of first being exported by pressure sensor in the time driving valve, in the time that upstream pressure is down to setting value, drives valve to open completely.Without peripheral control unit.Regulatory function completes automatically.The present invention also adopts the Vidacare corp of two groups of explosion-proof small-sized DC micro machines and programmable logic controller composition, directly drives this device to carry out reliable switch valve, have power consumption little, set convenient, reliability is high.
Technical scheme of the present invention is as follows: a kind of well head is far controlled and regulated emergency cut-off protective device; comprise valve; be arranged on the first pressure sensor in valve preceding pipeline; the controller being connected with the first pressure sensor; described controller is also connected with drive motors; drive motors is connected with valve rod, and described pressure sensor, controller, drive motors are connected with respectively supply unit.On described pipeline, be also connected with pressure switch.
Further improvement of the present invention comprises:
Described valve is two way seal ball valve.
Described supply unit comprises battery, and the solar panel and the wind electricity generating system that are connected with battery respectively.
Described drive motors is connected with driving leading screw by gear, drives leading screw end to be connected with pull bar, and described pull bar is connected with valve rod through driving rack, travelling gear, shaft joint successively.
The other end of described driving rack is also connected with back-moving spring, in described gear, is provided with clutch.
Between described drive motors and valve rod, be also provided with mechanical adjusting mechanism.
Described governor motion comprises governor motion casing, in described casing, be provided with balancing pole, described balancing pole is connected with the second pressure sensor by spring, the second described pressure sensor is connected with pressure transmitter, described pressure transmitter is also connected with the first pressure sensor, in described governor motion casing, be also provided with the balance weight coordinating with balancing pole, described balance weight is connected to back-moving spring by hook connecting.
In described mechanical adjusting mechanism casing, be also provided with a balancing pole being connected with hook motor, described balancing pole and balance weight are suitable.
Described drive motors and hook motor are explosion-proof small-sized DC micro machine.
The invention has the beneficial effects as follows: open after valve instruction when device receives, valve provides conditioning signal controlling opening of valve automatically by the pressure transmitter of self, without peripheral control unit and middle control instruction, control structure is simple, safe and reliable, solve prior art and directly opened fast impact and the destruction to downstream line and equipment, improved the efficiency and the accuracy rate that drive a well.Superpressure, under-voltage protection complete by the mechanical balance principle of self, without extra power, safe and reliable.This device valve adopts ball-valve structure form, two way seal, and sealing is reliable, and full-bore circulation after opening, without the pressure loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiment of the present invention.
1, valve, 2, junction box, 3, supply unit, 4, hook motor, 5, pressure switch, 6, drive motors, 7, clutch, 8, handwheel, 9, gear, 10, pressure transmitter, 11, drive leading screw, 12, the second pressure sensor, 13, governor motion casing, 14, shifting block, 15, pull bar, 16, balancing pole, 17, balance weight, 18, driving rack, 19, travelling gear, 20, back-moving spring.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
A kind of well head is far controlled and is regulated emergency cut-off protective device as shown in Figure 1; comprise valve 1; be arranged on the first pressure sensor in valve preceding pipeline; the controller being connected with the first pressure sensor; described controller is also connected with drive motors 6; drive motors 6 is connected with valve 1 valve rod, and described pressure sensor, controller, drive motors 6 are connected with respectively supply unit 3, and described supply unit 3 is also connected with junction box 2.On described pipeline, be also connected with pressure switch 5.Further comprising of this enforcement: the preferred two way seal ball valve of described valve 1; Described supply unit 3 comprises battery, and the solar panel and the wind electricity generating system that are connected with battery respectively; Described drive motors 6 is connected with and is driven leading screw 11 by gear 9, drives leading screw 11 ends to be connected with pull bar 15, and described pull bar 15 is connected with valve 1 valve rod through driving rack 18, travelling gear 19, shaft joint successively; The other end of described driving rack 18 is also connected with back-moving spring 20, in described gear 9, is provided with clutch 7; Between described drive motors 6 and valve rod, be also provided with mechanical adjusting mechanism.Described driving leading screw 11 is also connected with handwheel 8 for manual operation.
Described governor motion comprises governor motion casing 13, in described casing, be provided with balancing pole 16, described balancing pole 16 is connected with the second pressure sensor 12 by spring, the second described pressure sensor 12 is connected with pressure transmitter 10, described pressure transmitter 10 is also connected with the first pressure sensor, in described governor motion casing 13, be also provided with the balance weight 17 coordinating with balancing pole 16, described balance weight 17 is connected to back-moving spring 20 by hook connecting.In described mechanical adjusting mechanism casing 13, be also provided with one with hook motor 4, described hook motor 4 can driven equilibrium bar 16, described balancing pole 16 is suitable with balance weight 17.Described drive motors 6 and the preferred explosion-proof small-sized DC micro machine of hook motor 4.
Operating principle of the present invention is as follows:
(1) automatically regulate and drive valve
Controller is to drive motors 6 control signals, and now drive motors 6 starts, and receives the voltage signal that pressure transmitter 10 exports simultaneously it is controlled.Drive motors 6 drives main driving leading screw 11 to rotarily drive pull bar 15 through gear 9 and moves up and down, pull bar 15 drives driving rack 18 to move up and down, driving rack 18 drives travelling gear 19 to rotate through the 1 valve rod rotation of shaft joint band movable valve, automatically regulate direction of rotation and aperture according to downstream pressure, guarantee that downstream pressure is in predetermined scope, in the time that upstream pressure is down to setting value, provides signal controlling drive motors 6 by upstream pressure switch 5 and directly valve 1 is opened.In the time that valve 1 is opened completely (now balance weight 17 is in level), through approach switch, signal is passed to robot control system(RCS), now robot control system(RCS) control hook motor 4 starts, driving shift fork to move up turns clockwise shifting block 14, in the time that driving lever snaps in balance weight 17, by approach switch, signal is passed to robot control system(RCS), robot control system(RCS) control drive motors 6 and 4 reverse rotations of hook motor put in place, and whole device breakdown action completes.
(2) manual adjustments is driven valve
If when chance failure appears in robot control system(RCS), operating personnel can regulate and drive valve by manual function at the scene.Opening power device 3 blanking covers, push OFF position by switch, then by clutch 7 pull-ups, handwheel 8 is turned clockwise, valve 1 is opened to the pressure showing on some observation self pressure transmitter 10, if hypertonia, rotation hand wheel 8 turns down valve to regulate counterclockwise.In the time that upstream pressure is down to system pressure, handwheel 8 is turned clockwise until press manual hook depression bar (now balance weight 17 is in level) while turning motionless, while snapping in balance weight 17 from observation port observation driving lever, be then rotated counterclockwise handwheel 8 till turn motionless.(note: after manual operation completes, switch should be pushed to ON position, depress clutch 7.)
(3) valve-closing
Ultra under-pressure valve-closing, this design is in mechanical type governor motion casing 13, to have two springs, be arranged on the balance weight 17 with draw-in groove in casing, and with suitable balancing pole 16 and the rotating arm of balance weight 17, on described rotating arm, be fixed with swingle, described swingle can snap in the draw-in groove of balance weight 17 after rotation, described balancing pole 16 can keep balance weight 17 stable in the time of level, described balancing pole 16 is connected with respectively high pressure adjusting spring, low pressure adjusting spring, described high pressure adjusting spring, low pressure adjusting spring connects respectively the second pressure sensor 12.On described casing, be also provided with and connect square block and lower manual pass valve depression bar.The second pressure sensor 12 acts on balancing pole 1616 by high pressure adjusting spring, low pressure adjusting spring, when pressure is in setting range, these balancing pole 16 levels, when pressure exceeds or during lower than setting pressure, pressure sensor 12 drives push rod to move balancing pole 16 is tilted, balancing pole 16 is with dynamic balance weight 17 to tilt, and hook is thrown off, and driving rack 18 is moved down rapidly, drive Spool rotating and fast shut-off pipeline through back-moving spring 20 effects.
Valve-closing under normal pressure, in use according to need of work Shuttoff Valve, controller provides drive motors 4 and closes valve signal, now links up with motor 4 and starts and press the balancing pole 16 band dynamic balance weights 17 that tilt and tilt, thereby hook is thrown off, and valve 1 is closed.
(4) manually close valve
Press manual pass valve depression bar, now press balance weight 17 and tilt to make hook to throw off, valve 1 is closed.
The above is only preferred implementation of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a well head is far controlled and is regulated emergency cut-off protective device; it is characterized in that: comprise valve; be arranged on the first pressure sensor in valve preceding pipeline; the controller being connected with the first pressure sensor; described controller is also connected with drive motors; drive motors is connected with valve rod, and described pressure sensor, controller, drive motors are connected with respectively supply unit.
2. a kind of well head according to claim 1 is far controlled and is regulated emergency cut-off protective device, it is characterized in that: described valve is two way seal ball valve.
3. a kind of well head according to claim 1 is far controlled and is regulated emergency cut-off protective device, it is characterized in that: described supply unit comprises battery, and the solar panel and the wind electricity generating system that are connected with battery respectively.
4. a kind of well head according to claim 1 is far controlled and is regulated emergency cut-off protective device; it is characterized in that: described drive motors is connected with driving leading screw by gear; drive leading screw end to be connected with pull bar, described pull bar is connected with valve rod through driving rack, travelling gear, shaft joint successively.
5. a kind of well head according to claim 4 is far controlled and is regulated emergency cut-off protective device, it is characterized in that: the other end of described driving rack is also connected with back-moving spring, in described gear, is provided with clutch.
6. far control and regulate emergency cut-off protective device according to a kind of well head described in claim 1-4 any one, it is characterized in that: between described drive motors and valve rod, be also provided with mechanical adjusting mechanism.
7. a kind of well head according to claim 6 is far controlled and is regulated emergency cut-off protective device; it is characterized in that: described governor motion comprises governor motion casing; in described casing, be provided with balancing pole; described balancing pole is connected with the second pressure sensor by spring; the second described pressure sensor is connected with pressure transmitter; described pressure transmitter is also connected with the first pressure sensor; in described governor motion casing, be also provided with the balance weight coordinating with balancing pole, described balance weight is connected to back-moving spring by hook connecting.
8. a kind of well head according to claim 7 is far controlled and is regulated emergency cut-off protective device; it is characterized in that: in described mechanical adjusting mechanism casing, be also provided with one and hook motor; described drive motors can press balancing pole, and described balancing pole and balance weight are suitable.
9. a kind of well head according to claim 8 is far controlled and is regulated emergency cut-off protective device, it is characterized in that: described drive motors and hook motor are explosion-proof small-sized DC micro machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210441087.7A CN103806866B (en) | 2012-11-08 | 2012-11-08 | A kind of well head far controls regulation emergency cut-off protection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210441087.7A CN103806866B (en) | 2012-11-08 | 2012-11-08 | A kind of well head far controls regulation emergency cut-off protection device |
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| CN103806866A true CN103806866A (en) | 2014-05-21 |
| CN103806866B CN103806866B (en) | 2016-12-21 |
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| CN201210441087.7A Active CN103806866B (en) | 2012-11-08 | 2012-11-08 | A kind of well head far controls regulation emergency cut-off protection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695900A (en) * | 2015-03-18 | 2015-06-10 | 中国石油大学(北京) | Intelligent explosion-proof solenoid valve |
| CN110905444A (en) * | 2019-11-22 | 2020-03-24 | 中国石油天然气股份有限公司 | Gas well remote pressure control and adjustment quick-break device and application method thereof |
| CN111042764A (en) * | 2019-12-09 | 2020-04-21 | 陕西航天泵阀科技集团有限公司 | Emergency breaking device for natural gas wellhead adjustment |
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| CN1748072A (en) * | 2003-01-10 | 2006-03-15 | 伍德沃德调控器公司 | Actuator for well-head valve or other similar applications and system incorporating same |
| CN201202436Y (en) * | 2008-04-28 | 2009-03-04 | 上海工业自动化仪表研究所 | Natural gas well head emergent cut-off valve and automatic control device thereof |
| US20090101338A1 (en) * | 2007-10-23 | 2009-04-23 | Saudi Arabian Oil Company | Wellhead flowline protection and testing system with ESP speed controller and emergency isolation valve |
| CN101586737A (en) * | 2009-06-11 | 2009-11-25 | 刘子良 | Self-operated emergency cutting method of fluid pipe and self-operated flat-plate emergency cut-off valve |
| CN201661273U (en) * | 2010-01-29 | 2010-12-01 | 西南石油大学 | Solar electric control pneumatic safety cut-off system |
| CN202031536U (en) * | 2011-02-25 | 2011-11-09 | 中国石油集团川庆钻探工程有限公司 | Novel control system for well head safety valve |
| CN202954782U (en) * | 2012-11-08 | 2013-05-29 | 西安希佛隆阀门有限公司 | Well mouth remote-controlled regulation emergency switching off protective device |
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2012
- 2012-11-08 CN CN201210441087.7A patent/CN103806866B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1748072A (en) * | 2003-01-10 | 2006-03-15 | 伍德沃德调控器公司 | Actuator for well-head valve or other similar applications and system incorporating same |
| US20090101338A1 (en) * | 2007-10-23 | 2009-04-23 | Saudi Arabian Oil Company | Wellhead flowline protection and testing system with ESP speed controller and emergency isolation valve |
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| CN101586737A (en) * | 2009-06-11 | 2009-11-25 | 刘子良 | Self-operated emergency cutting method of fluid pipe and self-operated flat-plate emergency cut-off valve |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695900A (en) * | 2015-03-18 | 2015-06-10 | 中国石油大学(北京) | Intelligent explosion-proof solenoid valve |
| CN104695900B (en) * | 2015-03-18 | 2017-09-01 | 中国石油大学(北京) | Intelligently realizing explosion-proof magnetic valve |
| CN110905444A (en) * | 2019-11-22 | 2020-03-24 | 中国石油天然气股份有限公司 | Gas well remote pressure control and adjustment quick-break device and application method thereof |
| CN110905444B (en) * | 2019-11-22 | 2023-07-25 | 中国石油天然气股份有限公司 | Remote control pressure regulating emergency breaking device for gas well and application method thereof |
| CN111042764A (en) * | 2019-12-09 | 2020-04-21 | 陕西航天泵阀科技集团有限公司 | Emergency breaking device for natural gas wellhead adjustment |
| CN111042764B (en) * | 2019-12-09 | 2021-10-01 | 陕西航天泵阀科技集团有限公司 | Emergency breaking device for natural gas wellhead adjustment |
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| Publication number | Publication date |
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| CN103806866B (en) | 2016-12-21 |
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