CN107246500A - A kind of angular displacement type valve anti-theft device and warning system - Google Patents
A kind of angular displacement type valve anti-theft device and warning system Download PDFInfo
- Publication number
- CN107246500A CN107246500A CN201710344404.6A CN201710344404A CN107246500A CN 107246500 A CN107246500 A CN 107246500A CN 201710344404 A CN201710344404 A CN 201710344404A CN 107246500 A CN107246500 A CN 107246500A
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- China
- Prior art keywords
- angular displacement
- motor
- type valve
- control device
- displacement sensor
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- Granted
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 66
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000004891 communication Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/02—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action
- F16K35/022—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by a separate actuating element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses a kind of angular displacement type valve anti-theft device and warning system, including a kind of angular displacement type valve anti-theft device, including housing, power transmission shaft, motor base, angular displacement sensor, support and control device, the angular displacement sensor is fixed on support by upper fixing screws, the signal wire of angular displacement sensor passes through the centre bore for the upper lid being connected with housing threaded upper ends, the upper end grafting of pedestal lower end center-pole and adapter sleeve, it is power transmission shaft below center-pole, the power transmission shaft is connected by motor shaft sleeve with the motor shaft set on the motor, the upper end of the motor shaft is fixed with adapter sleeve, present invention also offers a kind of warning system, when valve is stolen, complete mechanical caging and remote alarms.Device is set using angular displacement sensor and machinery and is calculated as one, angular displacement signal is produced, teletransmission alarm, position positioning, mechanical caging, good anti-theft effect is realized.
Description
Technical field
The present invention relates to oilfield head valve anti-theft technique, specifically a kind of angular displacement type valve anti-theft device
And warning system.
Background technology
In oilfield production, criminal gives often in the live stolen of well head, robber's gas and theft oil wells in field producer goods
Huge economic loss, heavy damage and the normal production order for disturbing oil field are caused in oil field, cause serious environmental pollution,
Trigger major accident or bury accident potential, threaten the life security of oil field worker and law enforcement personnel on duty, oilfield safety production
Situation is also further severe.Therefore, reliable, economic, applicable well-mouth theft-prevention valve is developed, antitheft, tamper-proof ability is improved, keeps away
Exempt from serious accident, reduce economic loss, reduce management cost, it is ensured that safety in production, safety in production and management to oil field have
Significance.
The content of the invention
The purpose of the present invention is filled aiming at the drawbacks described above that prior art is present there is provided a kind of angular displacement type safety valve
Put and warning system.
The technical solution used in the present invention is：
A kind of angular displacement type valve anti-theft device, including housing, power transmission shaft, motor base, angular displacement sensor, support and control
Device processed, the angular displacement sensor is fixed on support by upper fixing screws, and support is arranged on the guide rail of housing central bore
Interior, the upper end of guide rail is provided with guide rail fixed seat, and the signal wire of angular displacement sensor passes through the upper lid being connected with housing threaded upper ends
Centre bore, the upper end grafting of pedestal lower end center-pole and adapter sleeve fixed by middle fixing screws, is to pass below center-pole
Moving axis, the power transmission shaft is connected by motor shaft sleeve with the motor shaft set on the motor, the upper end of the motor shaft and connection
Set is fixed, and handwheel is provided with the outside of motor shaft, the handwheel is welded and fixed with motor base, and it is internally provided with liner and fixed
Set, is provided with magnetic switch in one end of the liner fixed cover, magnetic switch reed is provided with the magnetic switch, with magnetic
Property switch correspondence side bottom be provided with motor, the motor is fixed on the side of motor, the motor and is provided with magnetic
Switch spring, the other end of the liner fixed cover is provided with leading screw fixed seat, and leading screw is provided with the leading screw fixed seat, described
Connecting rod is fixed with leading screw, the connecting rod matches with being arranged on the neck of motor shaft；The bottom of the motor is provided with UPS
Power supply, the bottom of the ups power is provided with control device.
Further, controller, data acquisition device, memory, positioner, communication are provided with the control device
Device, processor and action actuating mechanism, the controller respectively with data acquisition device, memory, positioner, communication
Device, processor connection, the processor connection data acquisition device and action actuating mechanism, the data acquisition device point
It is not connected with motor, angular displacement sensor, motor and leading screw.
Further, lid is provided with above the housing, connection of lid and housing is intersegmental on this is provided with sealing valve.
Further, the adapter sleeve is not isometrical cylinder overlaying structure, and upper and lower unilateral barrel is radially respectively provided with one and led to
Hole.
Further, the housing is cylindrical structure, and centre bore upper end is provided with internal thread, and centre bore lower end is provided with convex annular
Platform, is again provided with internal thread.
A kind of warning system, applied to described angular displacement type valve anti-theft device, the warning device includes host computer,
The control device being connected with host computer and the mobile terminal being connected with host computer, the host computer pass through communicator and control
Device is connected, and after angular displacement type valve anti-theft device is installed, passes through PC control control device angular displacement sensor
Opening and closing, when angular displacement sensor and control device are in connection status, during rotation handwheel, power transmission shaft is not rotated, with handwheel one
Act the relative center-pole being connected with power transmission shaft of the angular displacement sensor rotated to rotate, produce relative displacement, data acquisition device
Acquisition angle displacement transducer signal, is sent to processor after the signal is amplified through amplifier, processor is by the number of input
According to being sent after being handled to controller and action actuating mechanism, the action actuating mechanism connects motor so that motor action,
The rotation distance that motor is set according to controller is rotated, and the rotation of motor drives magnetic switch spring and upper magnetic switch
Switch jaw contact, now, leading screw promote connecting rod to travel forward so that connecting rod is inserted into neck and completes mechanical caging, simultaneously number
According to processor connection communication device, the positional information that the communicator collects alarm signal and data acquisition device is transmitted
To host computer, on the one hand host computer sends alarm, is on the one hand sent by being provided with SMS transmission module in it to mobile terminal,
Send secondary alarm；When angular displacement sensor is off with control device, rotates handwheel, angular displacement type safety valve
Device is opened, and does not send alarm, when angular displacement type valve anti-theft device is opened, rotates handwheel, while controlling host computer and control
Device is communicated so that controller is rotated by action actuating mechanism and motor connection, motor, and power transmission shaft is moved downward, with
Adapter sleeve is separated.
It is using the beneficial effect produced by above-mentioned technical proposal：It is antitheft suitable for oilfield head valve, use
Angular displacement sensor sets device with machinery and is calculated as one, produces angular displacement signal, realizes teletransmission alarm, position positioning, mechanical lock
Fixed, good anti-theft effect, it is to avoid serious accident occurs reduces economic loss, reduces management cost, it is ensured that oilfield safety is produced.
Brief description of the drawings
Fig. 1 is main view full section structural representation of the present invention；
Fig. 2 is the control principle drawing of the warning system of the present invention.
1. on cover, 2. guide rail fixed seats, 3. angular displacement sensors, 4. supports, fixed screw on 5., 6. center-poles, in 7.
Fixing screws, 8. times fixing screws, 9. adapter sleeves, 10. housings；11. power transmission shaft, 12. handwheels, 13. liner fixed covers, 14. electricity
Machine base, 15. control devices, 16.UPS power supplys, 17. motors, 18. leading screw fixed seats, 19. leading screws, 20. connecting rods, 21. horses
Reach, 22. motor shafts, 23. magnetic switch springs, magnetic switch reed on 24., 25. magnetic switch, 26. motor shaft sleeves, 27.
Neck, 28. sealing valves, B. handling holes, D. guide rails.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Referring to figs. 1 to Fig. 2, the invention provides a kind of angular displacement type valve anti-theft device, including housing 10, power transmission shaft
11st, motor base 14, angular displacement sensor 3, support 4 and control device 15, the angular displacement sensor 3 pass through upper fixed spiral shell
Nail 5 is fixed on support 4, and support 4 is arranged in the guide rail D of the centre bore of housing 10, and guide rail D upper end is provided with guide rail fixed seat 2,
The signal wire of angular displacement sensor 3 passes through the centre bore for the upper lid 1 being connected with the threaded upper ends of housing 10, the lower end center-pole 6 of support 4
With the upper end grafting of adapter sleeve 9, fixed by middle fixing screws 7, the adapter sleeve 9 is not isometrical cylinder overlaying structure, upper and lower
Unilateral barrel is radially respectively provided with a through hole.The top of the housing 10 is provided with lid 1, the connection of lid 1 and housing 10 on this
Intersegmental be provided with sealing valve 28, upper lid 1 is provided with handling hole B.The housing 10 is cylindrical structure, and centre bore upper end is provided with interior
Screw thread, centre bore lower end is provided with annular boss, is again provided with internal thread.The lower section of the center-pole 6 is power transmission shaft 11, the transmission
Axle 11 is connected by motor shaft sleeve 26 with the motor shaft 22 set on the motor 17, the upper end of the motor shaft 22 and adapter sleeve
9 fix, and the outside of motor shaft 22 are provided with handwheel 12, the handwheel 12 is welded and fixed with motor base 14, and it is internally provided with
Liner fixed cover 13, magnetic switch 25 is provided with one end of the liner fixed cover 13, is provided with the magnetic switch 25
Magnetic switch reed 24, is provided with motor 21, the motor 21 is fixed on motor 17 with the bottom of the corresponding side of magnetic switch 25
Magnetic switch spring 23 is provided with side, the motor 21, the other end of the liner fixed cover 13 is provided with leading screw and consolidated
It is provided with reservation 18, the leading screw fixed seat 18 on leading screw 19, the leading screw 19 and is fixed with connecting rod 20, the connecting rod 20 is with setting
The neck 27 put in motor shaft 22 matches；The bottom of the motor 17 is provided with ups power 16, the bottom of the ups power 16
It is provided with control device 15.Controller is provided with the control device 15, it is data acquisition device, memory, positioner, logical
Interrogate device, processor and action actuating mechanism, the controller respectively with data acquisition device, memory, positioner, logical
Interrogate device, processor connection, the processor connection data acquisition device and action actuating mechanism, the data acquisition device
It is connected respectively with motor, angular displacement sensor, motor and leading screw.
A kind of warning system, applied to described angular displacement type valve anti-theft device, the warning device includes host computer,
The control device 15 being connected with host computer and the mobile terminal being connected with host computer, the host computer pass through communicator and control
Device connection processed, after angular displacement type valve anti-theft device is installed, passes through PC control control device angular displacement sensor 3
Opening and closing, when angular displacement sensor 3 and control device 15 are in connection status, rotate handwheel 12, power transmission shaft 11 is not rotated,
The relative center-pole 6 being connected with power transmission shaft 11 of angular displacement sensor 3 rotated together with handwheel 12 rotates, and produces relative position
Move, the data acquisition device collection signal of angular displacement sensor 3 is sent to processor after the signal is amplified through amplifier,
Processor is sent to controller and action actuating mechanism after the data of input are handled, and the action actuating mechanism connects horse
Up to 21 so that motor 21 is acted, the rotation distance that motor 21 is set according to controller is rotated, under the rotation of motor 21 drives
Magnetic switch reed 24 is contacted with upper magnetic switch reed 23, now, and leading screw 19 promotes connecting rod 20 to travel forward so that connection
Bar 20 is inserted into neck 27 and completes mechanical caging, while data processor connection communication device, and the communicator is by alarm signal
And the positional information that data acquisition device is collected passes to host computer, on the one hand host computer sends alarm, on the one hand passes through
SMS transmission module is provided with it to send to mobile terminal, sends secondary alarm；When angular displacement sensor 3 and control device 15
It is off, when rotating handwheel 12, angular displacement type valve anti-theft device is opened, does not send alarm, angular displacement type valve is prevented
When stealing device unlatching, handwheel 12 is rotated, while controlling host computer to be communicated with control device 15 so that controller passes through action executing
Mechanism is connected with motor 17, and motor 17 is rotated, and power transmission shaft 11 is moved downward, and is separated with adapter sleeve 9.
The invention provides a kind of valve anti-theft device for having mechanical caging and remote alarms concurrently, meanwhile, will manually it open
Open and be changed into mechanical unlatching.Its basic principle is：After valve is installed, motor 17 is turned into original position, the original position is card
Groove 27 and the Corresponding matching of connecting rod 20, neck 27 are arranged on motor shaft 22, and its width is 1/3rd of motor shaft 22, by upper
Angular displacement sensor 3 is connected by position machine control with control device 15, when stealing, and when rotating handwheel 12, power transmission shaft 11 is simultaneously
Do not rotate, the relative center-pole 6 being connected with power transmission shaft 11 of the angular displacement sensor 3 rotated together with handwheel 12 rotates, and produces
Relative displacement, the data acquisition device collection signal of angular displacement sensor 3, is sent to after the signal is amplified through amplifier
Processor, processor is sent after the data of input are handled to controller and action actuating mechanism, and now, the action is held
Row mechanism connects motor 21 so that motor 21 is acted, and the rotation distance that motor 21 is set according to controller is rotated, motor 21
Rotation drive magnetic switch spring 24 to be contacted with upper magnetic switch reed 23, now, the promotion of leading screw 19 connecting rod 20 is forward
Motion so that connecting rod 20 is inserted into neck 27 and completes mechanical caging, while data processor connection communication device, communication dress
Put the positional information for collecting alarm signal and data acquisition device and pass to host computer, on the one hand host computer sends police
Report, is on the one hand sent to mobile terminal by being provided with SMS transmission module in it, sends secondary alarm.
The present invention will realize that teletransmission alarm, position positioning, mechanical caging are integrated, and greatly improve antitheft.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (6)
1. a kind of angular displacement type valve anti-theft device, it is characterised in that including housing, power transmission shaft, motor base, angle displacement transducer
Device, support and control device, the angular displacement sensor are fixed on support by upper fixing screws, and support is arranged on housing
In the guide rail of centre bore, the upper end of guide rail is provided with guide rail fixed seat, and the signal wire of angular displacement sensor is passed through and housing upper end spiral shell
The centre bore of the upper lid of line connection, the upper end grafting of pedestal lower end center-pole and adapter sleeve is fixed, center by middle fixing screws
It is power transmission shaft below bar, the power transmission shaft is connected by motor shaft sleeve with the motor shaft set on the motor, the motor shaft
Upper end fixed with adapter sleeve, handwheel is provided with the outside of motor shaft, the handwheel is welded and fixed with motor base, set inside it
Liner fixed cover is equipped with, one end of the liner fixed cover is provided with magnetic switch, magnetic is provided with the magnetic switch
Switch spring, the bottom of side corresponding with magnetic switch is provided with motor, and the motor is fixed on the side of motor, the motor
Magnetic switch spring is provided with, the other end of the liner fixed cover is provided with leading screw fixed seat, is set in the leading screw fixed seat
It is equipped with leading screw, the leading screw and is fixed with connecting rod, the connecting rod matches with being arranged on the neck of motor shaft；The motor
Bottom is provided with ups power, and the bottom of the ups power is provided with control device.
2. angular displacement type valve anti-theft device according to claim 1, it is characterised in that be provided with the control device
Controller, data acquisition device, memory, positioner, communication device, processor and action actuating mechanism, the control
Device is connected with data acquisition device, memory, positioner, communication device, processor respectively, and the processor connection data are adopted
Acquisition means and action actuating mechanism, the data acquisition device connect with motor, angular displacement sensor, motor and leading screw respectively
Connect.
3. angular displacement type valve anti-theft device according to claim 1, it is characterised in that be provided with above the housing
Upper lid, connection of lid and housing is intersegmental on this is provided with sealing valve.
4. angular displacement type valve anti-theft device according to claim 1, it is characterised in that the adapter sleeve is not isometrical circle
Cylinder overlaying structure, upper and lower unilateral barrel is radially respectively provided with a through hole.
5. angular displacement type valve anti-theft device according to claim 1, it is characterized in that：The housing is cylindrical structure, in
Heart hole upper end is provided with internal thread, and centre bore lower end is provided with annular boss, is again provided with internal thread.
6. a kind of warning system, applied to the angular displacement type valve anti-theft device described in claim 1 to 5, it is characterised in that institute
Warning device is stated including host computer, the control device being connected with host computer and the mobile terminal being connected with host computer, it is described on
Position machine is connected by communicator with control device, after angular displacement type valve anti-theft device is installed, passes through PC control
The opening and closing of control device angular displacement sensor, when angular displacement sensor and control device are in connection status, during rotation handwheel, is passed
Moving axis is not rotated, and the relative center-pole being connected with power transmission shaft of the angular displacement sensor rotated together with handwheel rotates, and produces
Relative displacement, data acquisition device acquisition angle displacement transducer signal, is sent to place after the signal is amplified through amplifier
Device is managed, processor is sent to controller and action actuating mechanism after the data of input are handled, the action actuating mechanism
Connect motor so that motor action, the rotation distance that motor is set according to controller is rotated, the rotation of motor drives lower magnetic
Property switch spring and upper magnetic switch switch jaw contact, now, leading screw promotes connecting rod to travel forward so that connecting rod is inserted into card
Groove completes mechanical caging, while data processor connection communication device, the communicator fills alarm signal and data acquisition
Put the positional information collected and pass to host computer, on the one hand host computer sends alarm, on the one hand by being provided with short message in it
Sending module is sent to mobile terminal, sends secondary alarm；When angular displacement sensor is off with control device, rotate
During handwheel, angular displacement type valve anti-theft device is opened, and does not send alarm, when angular displacement type valve anti-theft device is opened, rotates hand
Wheel, while controlling host computer to be communicated with control device so that controller is carried out by action actuating mechanism and motor connection, motor
Rotate, power transmission shaft is moved downward, separated with adapter sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710344404.6A CN107246500B (en) | 2017-05-16 | 2017-05-16 | A kind of angular displacement type valve anti-theft device and alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710344404.6A CN107246500B (en) | 2017-05-16 | 2017-05-16 | A kind of angular displacement type valve anti-theft device and alarm system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107246500A true CN107246500A (en) | 2017-10-13 |
| CN107246500B CN107246500B (en) | 2018-10-23 |
Family
ID=60016995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710344404.6A Expired - Fee Related CN107246500B (en) | 2017-05-16 | 2017-05-16 | A kind of angular displacement type valve anti-theft device and alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107246500B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445880A (en) * | 2019-09-16 | 2019-11-12 | 牛海峰 | A kind of thief-proof thermal of remote alarms |
| CN112984204A (en) * | 2021-04-13 | 2021-06-18 | 西安郑铁施封锁有限责任公司 | Intelligent hand wheel device for remote opening and closing of wellhead valve |
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| JP2001012633A (en) * | 1999-06-29 | 2001-01-16 | Fuji Koki Corp | Device for detecting valve opening of motor-driven valve and device for controlling opening of motor-driven valve |
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| CN201891920U (en) * | 2010-11-05 | 2011-07-06 | 常州电站辅机总厂有限公司 | Mechanical transmission of rotary motion valve electric actuator |
| CN202300313U (en) * | 2011-09-27 | 2012-07-04 | 扈秀霞 | Anti-theft device of oil well sampling valve |
| CN102900888A (en) * | 2012-10-09 | 2013-01-30 | 中国石油化工股份有限公司安徽石油分公司 | Anti-theft digital control electronic lock of oil tank truck |
| US9267609B2 (en) * | 2010-12-17 | 2016-02-23 | Continental Automotive Gmbh | Valve having a sensor to determine an angle of rotation of a valve flap |
| CN205298798U (en) * | 2015-12-31 | 2016-06-08 | 天津西帝尔科技发展有限公司 | Novel valve system based on wireless anti -theft warning structure |
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2017
- 2017-05-16 CN CN201710344404.6A patent/CN107246500B/en not_active Expired - Fee Related
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| JP2001012633A (en) * | 1999-06-29 | 2001-01-16 | Fuji Koki Corp | Device for detecting valve opening of motor-driven valve and device for controlling opening of motor-driven valve |
| CN200964818Y (en) * | 2006-11-08 | 2007-10-24 | 盐城市三正机械有限公司 | Oil production wellport anti-theft device |
| CN201891920U (en) * | 2010-11-05 | 2011-07-06 | 常州电站辅机总厂有限公司 | Mechanical transmission of rotary motion valve electric actuator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445880A (en) * | 2019-09-16 | 2019-11-12 | 牛海峰 | A kind of thief-proof thermal of remote alarms |
| CN112984204A (en) * | 2021-04-13 | 2021-06-18 | 西安郑铁施封锁有限责任公司 | Intelligent hand wheel device for remote opening and closing of wellhead valve |
| CN112984204B (en) * | 2021-04-13 | 2021-08-06 | 西安郑铁施封锁有限责任公司 | Intelligent hand wheel device for remote opening and closing of wellhead valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107246500B (en) | 2018-10-23 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20180910 Address after: 100728 22 North Street, Chaoyangmen, Chaoyang District, Beijing. Applicant after: Sinopec Corp. Applicant after: Zhuangxi Oil Production Plant of SINOPEC Shengli Oilfield Company Address before: 257000 Qian Tang River Road, Xianhe Town, Hekou District, Dongying, Shandong 4 Applicant before: Bi Xinzhong |
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