CN108591585A - Opening and closing device is moved in a kind of digitlization for Fluid valve - Google Patents
Opening and closing device is moved in a kind of digitlization for Fluid valve Download PDFInfo
- Publication number
- CN108591585A CN108591585A CN201810630206.0A CN201810630206A CN108591585A CN 108591585 A CN108591585 A CN 108591585A CN 201810630206 A CN201810630206 A CN 201810630206A CN 108591585 A CN108591585 A CN 108591585A
- Authority
- CN
- China
- Prior art keywords
- valve
- head
- opening
- closing device
- fluid
- 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
- 239000012530 fluid Substances 0.000 title claims abstract description 40
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 230000003993 interaction Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 16
- 230000006378 damage Effects 0.000 description 4
- 230000013011 mating Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006424 Flood reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002341 toxic gas Substances 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/46—Mechanical actuating means for remote operation
-
- 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
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a kind of digitlizations for Fluid valve to move opening and closing device, including fluid dynamic station, pressure regulator valve, hand-held rotation equipment and controller, fluid dynamic station oil revolving end have force (forcing) pump by piping connection；The force (forcing) pump is connect with the pressure regulator valve；Described pressure regulator valve one end is equipped with overflow passage, is connect with fluid dynamic station oil inlet end；The hand-held rotation equipment includes equipment ontology, equipment ontology front end is respectively equipped with head and drives the hydraulic motor of head rotating, the head can meet deeper operating position farther out by the long joint element for bar of insertion, and the head is equipped with disk with the hydraulic motor junction, the disc surfaces are equipped with one or more sense contacts.Compared with prior art, work efficiency is high for opening/shutting valve of the present invention, and speed is fast, and operating mechanism is light-weight, can directly apply on valve at the scene, significantly reduce the labor intensity and operating risk of worker.
Description
Technical field
The present invention relates to field of new energy technologies, and in particular to a kind of digitlization movement for Fluid valve, which opens and closes, to be set
It is standby.
Background technology
The fast development of China's economic technology has pushed people's life that the variation of essence has occurred, and population is not
Disconnected concentration, rapid urbanization process, are just pushing the development and formation of super-large city one by one, the continuous expansion of city size
It is improved with function, more stringent requirements are proposed is ensured to city management and city pipeline network.Quickly disposition burst fire-disaster, guarantee
The routine safety in city has corresponding high requirement.Usual city tap-water pipeline, fuel gas pipeline make in engineering construction
Large size valve is more, encounters and needs quickly to open or close under the state of emergency, needs more manpowers, long-time, inefficient behaviour
Make；Due to excessively relying on manpower, prolonged to operate, valve is in opening procedure, it may occur that damage；Municipal administration or work order
In the whole process, the manpower and materials and equipment cost of calling are higher for position；Since pipe valve is generally in the inspection shaft of underground, underground
Air and environment in inspection shaft is more severe, and worker increases insecurity in operation；Since required time is grown, to urgent
State lower valve opens and closes operation and directly influences reduction secondary disaster and disaster assistance opportunity.
Invention content
To solve drawbacks described above, opens and closes and set the purpose of the present invention is to provide a kind of digitlization movement for Fluid valve
It is standby, large size valve can be quickly opened in emergency situations, can not only reduce secondary disaster, obtain disaster assistance opportunity as early as possible,
And greatly reduce the labor intensity and operating risk of worker.
To achieve the above object, the technical solution adopted by the present invention is：A kind of digitlization movement for Fluid valve is opened
Hull closure, including fluid dynamic station, pressure regulator valve, hand-held rotation equipment and controller, fluid dynamic station oil revolving end pass through pipe
Road is connected with force (forcing) pump；The force (forcing) pump is connect with the pressure regulator valve；Described pressure regulator valve one end is connected with overflow passage, described to overflow
Flow tube road is connect with fluid dynamic station oil inlet end；The hand-held rotation equipment includes equipment ontology, before the equipment ontology
End be respectively equipped with head and drive head rotating actuating unit, the head can by the long joint element for bar of insertion come meet compared with
Remote deeper operating position, and the head is equipped with disk with the actuating unit junction, there are one the disc surfaces are set
Or multiple sense contacts, the actuating unit outside, which is equipped with, can receive the sensor for countering that the sense contact sends out signal,
The actuating unit side be respectively equipped with the oil inlet pipe being connect with the pressure regulator valve other end and with fluid dynamic station oil inlet end
The oil return line of connection, the oil inlet pipe are equipped with solenoid valve；The controller control respectively fluid dynamic station, force (forcing) pump and
The operation of solenoid valve, the controller also have the human-computer interaction screen for setting the head rotating number of turns and torque force value；Work
When, pressurize pump startup, and solenoid valve is in open state, and actuating unit drives head rotating, is touched when sensor for countering receives induction
When the signal that point is sent out reaches the setting number of turns, signal is transferred to controller, and controller controls solenoid valve and closes, in oil inlet pipe
Disconnected, actuating unit and head are stopped, and hydraulic oil is back to fluid dynamic station from overflow passage at this time.
Further, the fluid dynamic station uses hydraulic pressure or pneumatics as power.
The hydraulic motor is round-trip piston motor.
When multiple sense contacts are arranged in the disc surfaces, multiple sense contacts are uniformly arranged in disc surfaces.
The equipment ontology is additionally provided with the display screen that can show the head rotating number of turns, which senses with the counting
Device connects.
The equipment ontology is being additionally provided with assist handle at the hydraulic motor.
The head center is equipped with the embedded hole for the insertion of long joint element for bar, and outside is equipped with the pin communicated with embedded hole
Hole, the long joint element for bar with the matched axis pin of pin hole with head by fixing.
The stock is equipped with plurality of specifications, and the use under various working environments is met after embedded head.
Equipment ontology rear end is equipped with handle, and the hand valve of the control hydraulic motor speed of service is equipped at the handle.
The present invention is a kind of equipment special of mating city rescue and relief work support vehicles, it using wrecking truck mobile unit or
Alternating current provides power, is transferred energy on the device using pipeline, is converted into torque, will by mating stock connector
Torque, which is transmitted to, to be needed to open（It closes）Valve handle axis on rotate, realize quickly being turned on and off for valve, improve emergent
Disposal efficiency mitigates casualty loss.
In the use of the present invention, the rotating cycle that hydraulic motor drives head is set by controller, to ensure to large size
The protection of valve avoids the rotation that continues of head after unscrewing valve from being damaged caused by valve；It is set on the equipment ontology
The display screen set can show rotating cycle, and corresponding and calibration function can be realized with the human-computer interaction screen on controller；This hair
It is bright light-weight, one can a hand-held handle, another hand-held assist handle moves easy manipulation；Valve in underground can pass through
For stock connector in terrestrial operation, solving valve may be because of floods（Or leakage）Flood in water cannot be introduced into, valve pit-hole it is narrow
The problems such as small personnel are inconvenient, the pernicious gas even in pit-hole jeopardizes operating personnel's life security.
The present invention carries out revolution according to the torque capability that the specification size of wanted Open valve is born and torsional forces is set, control
Revolution and rotating speed processed and output torque prevent excess revolutions number, super torque damage valve rod and valve, realize rapid, digitlization
Control mode opening/shutting valve, prevents valve opening and closing from excessively damaging；The power-equipment of use is round-trip piston motor,
With high-frequency percussion power, reaction torque is not present, both hands operation counter to operating personnel's generation will not push away unexpected injury；Valve
Door is opened and closed in terrestrial operation, and personnel is avoided to enter inspection shaft melt pit operating difficulties and injured by accidental scalding or poison gas；It is quickly high
Effect, speed can greatly save labour's input more than pervious 50 times or more, and especially large size valve is more obvious, originally
It needs 2-4 people to promote the work rotated 2 hours, only needs 1-2 people to spend 2-4 minutes can quickly dispose pipe using the New Product
Net accident valve opening and closing, utmostly reduces casualty loss.
This mobile type digital control valve headstock gear is exactly the efficient city Support Equipment researched and developed under this demand, this dress
It is standby to have filled up the blank that China city pipeline network valve fast and safely opens and closes equipment.
Compared with prior art, work efficiency is high for opening/shutting valve of the present invention, and speed is fast, and opening and closing speed can freely adjust, and drive
Ovable valve stem turnning circle viewable numbersization are set, and are rotated the enough required number of turns, that is, autostops, are avoided damage to valve；According to valve rod
（Hand wheel pole diameter）Suitable power output is set, control mode is not increased in hydraulic motor rotary speed, improve pressure and
Torque, very fast Open valve ensure valve safety；Operating mechanism is light-weight, can directly apply on valve, greatly drop at the scene
The low labor intensity and operating risk of worker.
Description of the drawings
With reference to the accompanying drawings and embodiments, the structure and features of the present invention is further described.
Fig. 1 is the operation principle schematic diagram of the present invention.
Fig. 2 is the structural schematic diagram of heretofore described hand-held rotation equipment.
In attached drawing 2,1. long joint element for bar, 2. axis pins, 3. heads, 4. disks, 5. sensor for countering, 6. equipment ontologies, 7.
Hand valve, 8. handles, 9. assist handles, 10. oil inlet pipes, 11. oil return lines, 12. hydraulic motors, 13. display screens.
Specific implementation mode
Referring to a kind of embodiment that attached drawing 1- Fig. 2 is the present invention, a kind of digitlization movement for Fluid valve is disclosed
Opening and closing device, including fluid dynamic station, pressure regulator valve, hand-held rotation equipment and controller, fluid dynamic station oil revolving end pass through
Piping connection has force (forcing) pump；The force (forcing) pump is connect with the pressure regulator valve；Described pressure regulator valve one end is equipped with overflow passage, described to overflow
Flow tube road is connect with fluid dynamic station oil inlet end；The hand-held rotation equipment includes equipment ontology 6, the equipment ontology 6
The hydraulic motor 12 that front end is respectively equipped with head 3 and head 3 is driven to rotate, the head 3 can pass through the long joint element for bar of insertion 1
Meet deeper operating position farther out, and the head 3 is equipped with disk 4, the disk 4 with 12 junction of the hydraulic motor
Surface is equipped with one or more sense contacts, and the sense contact can be received by, which being equipped with outside the hydraulic motor 12, sends out signal
Sensor for countering 5,12 side of the hydraulic motor be respectively equipped with the oil inlet pipe being connect with the pressure regulator valve other end and with it is described
The oil return line of fluid dynamic station oil inlet end connection, 6 rear end of equipment ontology are equipped with handle 8, control are equipped at the handle 8
The hand valve 7 of 12 speed of service of hydraulic motor；The controller controls the operation of fluid dynamic station and force (forcing) pump, the control respectively
Also there is device solenoid valve and human-computer interaction screen, the solenoid valve to be set on oil inlet pipe, and the human-computer interaction screen can set machine
Head rotating cycle and torque force value；When work, pressurize pump startup, and solenoid valve is in open state, and hydraulic motor 12 drives head 3
Rotation, when sensor for countering 5, which receives the signal that sense contact is sent out, reaches the setting number of turns, signal is transferred to controller, control
Device controls solenoid valve and closes, and oil inlet pipe interrupts, and hydraulic motor 12 and head 3 be stopped, and hydraulic oil is from overflow passage at this time
It is back to fluid dynamic station.
Further, the fluid dynamic station uses hydraulic pressure or pneumatics as power.
The hydraulic motor 12 is round-trip piston motor.
When multiple sense contacts are arranged in 4 surface of the disk, multiple sense contacts are uniformly arranged on 4 surface of disk, setting
Sense contact it is more, the corresponding rotating cycle sensed is more accurate, and precision is higher.
The equipment ontology 6 is additionally provided with the display screen that can show the head rotating number of turns, which passes with the counting
Sensor 5 connects.
The equipment ontology 6 is being additionally provided with assist handle 9 at the hydraulic motor 12.
3 center of the head is equipped with the embedded hole being embedded in for long joint element for bar 1, and outside is equipped with the pin communicated with embedded hole
Hole, the long joint element for bar 1 with the matched axis pin 2 of pin hole with head 3 by fixing.
The long joint element for bar 1 is equipped with plurality of specifications, and the use under various working environments is met after embedded head.
In the use of the present invention, the rotating cycle that hydraulic motor drives head is set by controller, to ensure to large size
The protection of valve avoids the rotation that continues of head after unscrewing valve from being damaged caused by valve；It is set on the equipment ontology
The display screen set can show rotating cycle, and corresponding and calibration function can be realized with the human-computer interaction screen on controller；This hair
It is bright light-weight, one can a hand-held handle, another hand-held assist handle moves easy manipulation；Valve in underground can pass through
For stock connector in terrestrial operation, solving valve may be because of floods（Or leakage）Flood in water cannot be introduced into, valve pit-hole it is narrow
The problems such as small personnel are inconvenient, the pernicious gas even in pit-hole jeopardizes operating personnel's life security.
The present invention is a kind of equipment special of mating city rescue and relief work support vehicles, it using wrecking truck mobile unit or
Alternating current provides power, is transferred energy on the device using pipeline, is converted into torque, will by mating stock connector
Torque, which is transmitted to, to be needed to open（It closes）Valve handle axis on rotate, realize quickly being turned on and off for valve, improve emergent
Disposal efficiency mitigates casualty loss.
Described above is only presently preferred embodiments of the present invention, and above-mentioned specific embodiment is not limitation of the present invention,
Retouching, modification or the equivalent replacement that all those skilled in the art are made as described above belong to the guarantor of the present invention
Protect range.
Claims (9)
1. opening and closing device is moved in a kind of digitlization for Fluid valve, it is characterised in that：Including fluid dynamic station, pressure regulator valve,
Hand-held rotation equipment and controller, fluid dynamic station oil revolving end have force (forcing) pump by piping connection；The force (forcing) pump and institute
State pressure regulator valve connection；Described pressure regulator valve one end is connected with overflow passage, the overflow passage and fluid dynamic station oil inlet end
Connection；The hand-held rotation equipment includes equipment ontology, and equipment ontology front end is respectively equipped with head and drives head rotating
Actuating unit, the head can meet deeper operating position farther out, and the head by the long joint element for bar of insertion
It is equipped with disk with the actuating unit junction, the disc surfaces are equipped with one or more sense contacts, the actuating unit
Outside, which is equipped with, can receive the sensor for countering that the sense contact sends out signal, and actuating unit side is respectively equipped with and adjusts
The oil inlet pipe of pressure valve other end connection and the oil return line that is connect with fluid dynamic station oil inlet end, on the oil inlet pipe
Equipped with solenoid valve；The controller controls the operation of fluid dynamic station, force (forcing) pump and solenoid valve respectively, and the controller also has
Human-computer interaction screen for setting the head rotating number of turns and torque force value；When work, pressurize pump startup, and solenoid valve is in opening state
State, actuating unit drive head rotating, when sensor for countering, which receives the signal that sense contact is sent out, reaches the setting number of turns, signal
It is transferred to controller, controller controls solenoid valve and closes, and oil inlet pipe interrupts, and actuating unit and head are stopped, at this time liquid
Pressure oil is back to fluid dynamic station from overflow passage.
2. opening and closing device is moved in the digitlization according to claim 1 for Fluid valve, it is characterised in that：The fluid
Power station is using hydraulic pressure or pneumatics as power.
3. opening and closing device is moved in the digitlization according to claim 1 for Fluid valve, it is characterised in that：The hydraulic pressure
Motor is round-trip piston motor.
4. opening and closing device is moved in the digitlization according to claim 1 for Fluid valve, it is characterised in that：The disk
When multiple sense contacts are arranged in surface, multiple sense contacts are uniformly arranged in disc surfaces.
5. opening and closing device is moved in the digitlization according to claim 1 for Fluid valve, it is characterised in that：The equipment
Ontology is additionally provided with the display screen that can show the head rotating number of turns, which connect with the sensor for countering.
6. opening and closing device is moved in the digitlization according to claim 1 for Fluid valve, it is characterised in that：The equipment
Ontology is being additionally provided with assist handle at the hydraulic motor.
7. opening and closing device is moved in the digitlization according to claim 1 for Fluid valve, it is characterised in that：The head
Center is equipped with the embedded hole for the insertion of long joint element for bar, and outside is equipped with the pin hole communicated with embedded hole, the long joint element for bar
By being fixed with head with the matched axis pin of pin hole.
8. opening and closing device is moved in the digitlization according to claim 1 for Fluid valve, it is characterised in that：The stock
Connector is equipped with plurality of specifications, and the use under various working environments is met after embedded head.
9. opening and closing device is moved in the digitlization according to claim 1 for Fluid valve, it is characterised in that：The equipment
Ontology rear end is equipped with handle, and the hand valve of the control hydraulic motor speed of service is equipped at the handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630206.0A CN108591585A (en) | 2018-06-19 | 2018-06-19 | Opening and closing device is moved in a kind of digitlization for Fluid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810630206.0A CN108591585A (en) | 2018-06-19 | 2018-06-19 | Opening and closing device is moved in a kind of digitlization for Fluid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108591585A true CN108591585A (en) | 2018-09-28 |
Family
ID=63628668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810630206.0A Pending CN108591585A (en) | 2018-06-19 | 2018-06-19 | Opening and closing device is moved in a kind of digitlization for Fluid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108591585A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060159569A1 (en) * | 2003-07-17 | 2006-07-20 | Cooper Cameron Corporation | Pump device for the hydraulic actuation of a valve |
| CN201196287Y (en) * | 2008-05-16 | 2009-02-18 | 中国石油兰州石油化工公司 | Automatic control system of valve |
| CN102620036A (en) * | 2012-03-23 | 2012-08-01 | 云南兴长江实业有限公司 | Hydraulic actuating device used for swing on-off valve |
| CN104482270A (en) * | 2014-12-31 | 2015-04-01 | 上海凯研机械设备有限公司 | Movable digital display type valve operator |
| CN205298775U (en) * | 2015-12-23 | 2016-06-08 | 合肥英腾嘉科技发展有限责任公司 | Ware is opened and close to valve |
| CN208886097U (en) * | 2018-06-19 | 2019-05-21 | 河南宜和城保装备科技实业有限公司 | A kind of mobile opening and closing device of digitlization for Fluid valve |
-
2018
- 2018-06-19 CN CN201810630206.0A patent/CN108591585A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060159569A1 (en) * | 2003-07-17 | 2006-07-20 | Cooper Cameron Corporation | Pump device for the hydraulic actuation of a valve |
| CN201196287Y (en) * | 2008-05-16 | 2009-02-18 | 中国石油兰州石油化工公司 | Automatic control system of valve |
| CN102620036A (en) * | 2012-03-23 | 2012-08-01 | 云南兴长江实业有限公司 | Hydraulic actuating device used for swing on-off valve |
| CN104482270A (en) * | 2014-12-31 | 2015-04-01 | 上海凯研机械设备有限公司 | Movable digital display type valve operator |
| CN205298775U (en) * | 2015-12-23 | 2016-06-08 | 合肥英腾嘉科技发展有限责任公司 | Ware is opened and close to valve |
| CN208886097U (en) * | 2018-06-19 | 2019-05-21 | 河南宜和城保装备科技实业有限公司 | A kind of mobile opening and closing device of digitlization for Fluid valve |
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