CN102563190A - Pneumatic positioning actuator with intermittent gas supply - Google Patents
Pneumatic positioning actuator with intermittent gas supply Download PDFInfo
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- CN102563190A CN102563190A CN2012100237111A CN201210023711A CN102563190A CN 102563190 A CN102563190 A CN 102563190A CN 2012100237111 A CN2012100237111 A CN 2012100237111A CN 201210023711 A CN201210023711 A CN 201210023711A CN 102563190 A CN102563190 A CN 102563190A
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Abstract
A pneumatic positioning actuator with intermittent gas supply comprises an upper cover and a lower cover. An explosion-proof system comprises the upper cover, a sealing strip, the lower cover and hinges for the upper cover and the lower cover; the lower cover is provided with a gas inlet joint and a gas outlet joint; a compressed gas source control system comprises a self-preservation electromagnetic valve component, the gas inlet joint, the gas outlet joint and an exhaust port; the pneumatic positioning actuator is further provided with a positioner operating panel; and an electronic control system for a positioner comprises an internal positioner CPU (central processing unit) main board, an I/O (input/output) interface, a solar voltage stabilizing and wireless interface board, a wireless transmission module and the positioner operating panel. Direct energy is used as power supply for a control receiving unit, and an extremely small amount of delivered gas is used as control gas for driving the pneumatic positioner to control a regulating valve.
Description
Technical field
The present invention relates to instrument control automatic field, be specifically related to a kind of pneumatic location final controlling element of intermittent type air feed.
Background technique
Pneumatic positioner has obtained using extremely widely in the controlling component of modulating valve.The pneumatic actuator of existing modulating valve, the general pressure adjusting structure that all adopts nozzle baffle type is realized the delivery pressure of control gaseous and the control of incoming pressure difference.Some control gaseous is directly drained from relief opening when work, to guarantee certain control pressure reduction.So existing pneumatic positioner all has suitable control to use the pressurized gas consumption; The electrical signal of existing pneumatic actuator generally all adopts external input 4-20mA electrical signal to realize the positioning control to pneumatic actuator, on the circuit of input signal, produces the fault such as interference attenuation than being easier to; The feedback of existing pneumatic actuator adopts the spring lever device, and the structure relative complex is easy to generate various surface etchings, dust accretion etc. under the long-term work, make pneumatic actuator that various faults take place easily, causes operational failure.
In some specific occasion; Be difficult to adopt pneumatic positioner to come the regulating and controlling valve under the occasion that does not have corresponding control pressurized gas to originate; Therefore adopt the power supply of direct energy source as the control receiving element; Drive pneumatic positioner as control gaseous and come the regulating and controlling valve with the gas that is transferred of trace extremely, become the necessary means that realizes control flow rate and pressure in the open-air long distances of fluid pipe network.
Summary of the invention
In order to overcome the shortcoming of above-mentioned existing technology; The object of the present invention is to provide a kind of pneumatic location final controlling element of intermittent type air feed; Adopt the power supply of direct energy source, drive pneumatic positioner as control gaseous and come the regulating and controlling valve with the gas that is transferred of trace extremely as the control receiving element.
In order to achieve the above object, the technological scheme taked of the present invention is:
A kind of pneumatic location final controlling element of intermittent type air feed; Comprise positioning work piece explosion-resistant enclosure loam cake 1 and positioning work piece explosion-resistant enclosure lower cover 4; Be provided with positioning work piece explosion-resistant enclosure Stamping Steel Ribbon 2 between positioning work piece explosion-resistant enclosure loam cake 1 and the positioning work piece explosion-resistant enclosure lower cover 4; And through 3 connections of positioning work piece explosion-resistant enclosure covers hinge, positioning work piece explosion-resistant enclosure loam cake 1, positioning work piece explosion-resistant enclosure Stamping Steel Ribbon 2, positioning work piece explosion-resistant enclosure covers hinge 3, positioning work piece explosion-resistant enclosure lower cover 4 have been formed explosion protection system; The side of positioning work piece explosion-resistant enclosure lower cover 4 is provided with air inlet connections 7; The bottom is provided with air outlet joint 8; The part that is communicated with in housing between air inlet connections 7 and the air outlet joint 8 is provided with self-insurance type electromagnetic valve component 6; Self-insurance type electromagnetic valve component 6 is communicated with relief opening 5, and self-insurance type electromagnetic valve component 6, air inlet connections 7, air outlet joint 8, relief opening 5 have been formed control compressed gas source system; Pneumatic location final controlling element also is provided with positioning work piece operation panel 11, inside and also is provided with positioning work piece LCD module 12, positioning work piece cpu motherboard 13, chargeable lithium cell group 14, signaling line Explosion proof joint 15, I/O interface and solar energy voltage stabilizing and wireless interface oralia 16, wireless transport module 17, and positioning work piece cpu motherboard 13, I/O interface and solar energy voltage stabilizing and wireless interface oralia 16, wireless transport module 17, positioning work piece operation panel 11 have been formed the positioning work piece electronic control system.
Advantage of the present invention is for adopting the power supply of direct energy source as the control receiving element, drives pneumatic positioner as control gaseous and comes the regulating and controlling valve with the gas that is transferred of trace extremely.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is system applies figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
With reference to Fig. 1; A kind of pneumatic location final controlling element of intermittent type air feed; Comprise positioning work piece explosion-resistant enclosure loam cake 1 and positioning work piece explosion-resistant enclosure lower cover 4; Be provided with positioning work piece explosion-resistant enclosure Stamping Steel Ribbon 2 between positioning work piece explosion-resistant enclosure loam cake 1 and the positioning work piece explosion-resistant enclosure lower cover 4, and connect through positioning work piece explosion-resistant enclosure covers hinge 3, positioning work piece explosion-resistant enclosure loam cake 1, positioning work piece explosion-resistant enclosure Stamping Steel Ribbon 2, positioning work piece explosion-resistant enclosure covers hinge 3, positioning work piece explosion-resistant enclosure lower cover 4 have been formed explosion protection system; The side of positioning work piece explosion-resistant enclosure lower cover 4 is provided with air inlet connections 7; The bottom is provided with air outlet joint 8; The part that is communicated with in housing between air inlet connections 7 and the air outlet joint 8 is provided with self-insurance type electromagnetic valve component 6; Self-insurance type electromagnetic valve component 6 is communicated with relief opening 5, and self-insurance type electromagnetic valve component 6, air inlet connections 7, air outlet joint 8, relief opening 5 have been formed control compressed gas source system; Pneumatic location final controlling element also is provided with positioning work piece operation panel 11, inside and also is provided with positioning work piece LCD module 12, positioning work piece cpu motherboard 13, chargeable lithium cell group 14, signaling line Explosion proof joint 15, I/O interface and solar energy voltage stabilizing and wireless interface oralia 16, wireless transport module 17, and positioning work piece cpu motherboard 13, I/O interface and solar energy voltage stabilizing and wireless interface oralia 16, wireless transport module 17, positioning work piece operation panel 11 have been formed the positioning work piece electronic control system.
Working principle of the present invention is:
With reference to Fig. 2; Solar panel 18 usefulness independently tower bridge are located near the operational site; Introduce apparatus of the present invention through sun-generated electric power line and Explosion proof joint 20, for apparatus of the present invention provide power supply, solar panel tower bridge is located at from inflammable and explosive operational site 50M at a distance; Relief opening 19 is that the micro-exhaust that is produced when pneumatic control valve is regulated work enters atmosphere; When adopting by the inflammable gas in the control valve road as the Control work source of the gas, should outlet pipe be prolonged the place discharging that be placed on away from the operational site, be preferably in downwind.Flow transmitter signaling line and Explosion proof joint 21 and flow transmitter 27, pressure transmitter signaling line and Explosion proof joint 22 and pressure transmitter 26, temperature transmitter signaling line and Explosion proof joint 23 and temperature transmitter 25 are that the sensing transducer signal that the outside is imported is inserted apparatus of the present invention through approved cable or Explosion-proof host; For apparatus of the present invention provide input feedback signal, wherein the pressure inverting sensor can have two or more according to the control needs.The required control compressed gas source 10 of pneumatic control valve gets into self-insurance type electromagnetic valve component 6 suction ports of apparatus of the present invention with air inlet connections 7, regulates the necessary compressed gas source of control for pneumatic control valve provides.For the pipeline of conveying gas,, then need to connect again like air inlet connections 7 behind the filtration under diminished pressure if use the gas in the pipeline; Air outlet joint 8 is to begin to enter into diaphragm cylinder air-inlet cavity 29 through the compression control source of the gas after 6 controls of self-insurance type electromagnetic valve component in apparatus of the present invention; Diaphragm cylinder Returnning spring 31 is compressed when the pressure of diaphragm cylinder air-inlet cavity 29 raises, and control valve valve rod 33 begins to move up, and the valve port opening of modulating valve increases; When the signal of feedback elements reaches the setting value that needs; Air outlet joint 8 stops air feed, this moment diaphragm cylinder air-inlet cavity 29 the pressure and the compressive force balance of diaphragm cylinder Returnning spring 31, the location of having realized regulating valve rod 33; When needs reduce the valve port opening of modulating valve; Through self-insurance type electromagnetic valve component 6 and relief opening 5 diaphragm cylinder air-inlet cavity 29 and relief opening 5 are communicated, the pressure of diaphragm cylinder air-inlet cavity 29 descends at this moment, because the effect of diaphragm cylinder Returnning spring 31; Control valve valve rod 33 begins to descend; When the signal of feedback elements reached the setting value that needs, diaphragm cylinder air-inlet cavity 29 was cut off with relief opening 5, at this moment the pressure of diaphragm cylinder air-inlet cavity 29 and the compressive force balance of diaphragm cylinder Returnning spring 31.Realized the location of regulating valve rod 33.
Control valve valve core position sensor and limit switch assembly 9, temperature transmitter 25, pressure transmitter 26, flow transmitter 27 have been formed external feedback system; CPU module 13 is through preset working program on internal memory and external temperature transmitter 25, pressure transmitter 26, flow transmitter 27; Limit switch assembly 9 input signals and external remote control receive signal 17 and realize the solenoid controlled on the self-insurance type electromagnetic valve component 6; Air pressure in the realization air outlet 8 are controlled the air pressure control that realizes in the diaphragm cylinder air-inlet cavity 29; The balanced action of the Returnning spring 30 through diaphragm cylinder realizes the position adjustment of control valve rod 32, accomplishes the adjusting control procedure to control valve.
LCD show with the keyboard load module be used for showing parameter that system mode, running parameter, setup parameter, power status, the various feedback of CPU module 13 import, electromagnetic coil working state etc.Hermetic touch-switch, manually incoming pressure Control Parameter, flow control parameter, time control parameter, mode of operation, show state pattern etc. are adopted in the keyboard input.LCD shows and keyboard load module surface adopts PC film and PCB substrate that it all is sealed in inside.
The wireless receiving and dispatching modulation module be used for receiving and launch the outside wireless signal modulation that comes after be transferred to CPU module 13, generally adopt the corresponding standard standard, like bluetooth, Zi Feng, GPRS, CDMA etc.Be divided into the Local Area Network connection and be connected, to adapt to the needs of various control network with long haul network.
Solar power supply system is made up of the solar panel of outside and inner chargeable lithium cell group 14 and power supply processing circuit, and the solar panel that sets up through the outside is with in the power-supply system, through measures such as voltage stabilizing, current limliting, saturated protections.When completion has sunlight chargeable cell is realized charging.Guarantee that the whole system operation power supply is normal.
Input/output module comprises switching value I/O module, analog amount A/D modular converter, solenoid valve positive negative pulse stuffing signaling module, position transducer module, wire transmission module.Switching value I/O module mainly is to accomplish the port that is transferred to corresponding C PU module after the input of limit switch signal up and down and external switch signal on the regulating valve rod position transducer, the photoelectricity isolation.Analog amount A/D modular converter mainly is that the analog signal conversion of pressure transmitter that the outside is accepted, flow transmitter, temperature transmitter is digital signal and is transferred to CPU module 13 corresponding ports.Solenoid valve positive negative pulse stuffing signaling module mainly is can directly drive the electromagnetic coil work on the solenoid valve after being used for amplifying in a disguised form through shaping the electromagnetic valve wire size of CPU module 13 outputs.The position transducer module is that position signal with regulating valve rod is transferred to CPU module 13 corresponding ports after through conversion.Realize the feedback control of regulating valve rod position through CPU module 13 control corresponding.The wire transmission module is to realize and the both-way communication of external network through standards such as various cable network standards such as RS232, RS485, USB, CAN.
Claims (1)
1. the pneumatic location final controlling element of an intermittent type air feed; Comprise positioning work piece explosion-resistant enclosure loam cake (1) and positioning work piece explosion-resistant enclosure lower cover (4); It is characterized in that: be provided with positioning work piece explosion-resistant enclosure Stamping Steel Ribbon (2) between positioning work piece explosion-resistant enclosure loam cake (1) and the positioning work piece explosion-resistant enclosure lower cover (4); And through positioning work piece explosion-resistant enclosure covers hinge (3) connection, positioning work piece explosion-resistant enclosure loam cake (1), positioning work piece explosion-resistant enclosure Stamping Steel Ribbon (2), positioning work piece explosion-resistant enclosure covers hinge (3), positioning work piece explosion-resistant enclosure lower cover (4) have been formed explosion protection system; The side of positioning work piece explosion-resistant enclosure lower cover (4) is provided with air inlet connections (7); The bottom is provided with air outlet joint (8); The part that is communicated with in housing between air inlet connections (7) and the air outlet joint (8) is provided with self-insurance type electromagnetic valve component (6); Self-insurance type electromagnetic valve component (6) and relief opening (5) are communicated with, and self-insurance type electromagnetic valve component (6), air inlet connections (7), air outlet joint (8), relief opening (5) have been formed control compressed gas source system; Pneumatic location final controlling element also is provided with positioning work piece operation panel (11), inside and also is provided with positioning work piece LCD module (12), positioning work piece cpu motherboard (13), chargeable lithium cell group (14), signaling line Explosion proof joint (15), I/O interface and solar energy voltage stabilizing and wireless interface oralia (16), wireless transport module (17), and positioning work piece cpu motherboard (13), I/O interface and solar energy voltage stabilizing and wireless interface oralia (16), wireless transport module (17), positioning work piece operation panel (11) have been formed the positioning work piece electronic control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100237111A CN102563190A (en) | 2012-02-03 | 2012-02-03 | Pneumatic positioning actuator with intermittent gas supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100237111A CN102563190A (en) | 2012-02-03 | 2012-02-03 | Pneumatic positioning actuator with intermittent gas supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102563190A true CN102563190A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100237111A Pending CN102563190A (en) | 2012-02-03 | 2012-02-03 | Pneumatic positioning actuator with intermittent gas supply |
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| Country | Link |
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| CN (1) | CN102563190A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016460A (en) * | 2012-12-13 | 2013-04-03 | 浙江大学 | Photoelectric automatic exhaust valve for hydraulic system |
| CN111853303A (en) * | 2019-04-29 | 2020-10-30 | 比亚迪股份有限公司 | Explosion-proof valve, battery package and vehicle |
| CN111963749A (en) * | 2020-08-07 | 2020-11-20 | 宁波富仕达电力工程有限责任公司 | Novel box-type pneumatic actuating mechanism |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5251148A (en) * | 1990-06-01 | 1993-10-05 | Valtek, Inc. | Integrated process control valve |
| US5431182A (en) * | 1994-04-20 | 1995-07-11 | Rosemount, Inc. | Smart valve positioner |
| CN1271410A (en) * | 1997-09-22 | 2000-10-25 | 费希尔控制产品国际公司 | Diagnostic device and method for pressure regulator |
| CN2429673Y (en) * | 2000-01-09 | 2001-05-09 | 乐清市人民仪表厂 | Positioner for electric controlled valve |
| CN201007798Y (en) * | 2007-02-15 | 2008-01-16 | 张文成 | Electronic type electric controlled valve positioner |
| CN101858457A (en) * | 2010-03-26 | 2010-10-13 | 潘辉义 | Intelligent electropneumatic valve positioner and control system |
| CN201973349U (en) * | 2011-01-28 | 2011-09-14 | 陕西科技大学 | Intelligent valve locater |
| CN202531968U (en) * | 2012-02-03 | 2012-11-14 | 深圳乐满油气技术有限公司 | Pneumatic positioning actuator capable of supplying air intermittently |
-
2012
- 2012-02-03 CN CN2012100237111A patent/CN102563190A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5251148A (en) * | 1990-06-01 | 1993-10-05 | Valtek, Inc. | Integrated process control valve |
| US5431182A (en) * | 1994-04-20 | 1995-07-11 | Rosemount, Inc. | Smart valve positioner |
| CN1271410A (en) * | 1997-09-22 | 2000-10-25 | 费希尔控制产品国际公司 | Diagnostic device and method for pressure regulator |
| CN2429673Y (en) * | 2000-01-09 | 2001-05-09 | 乐清市人民仪表厂 | Positioner for electric controlled valve |
| CN201007798Y (en) * | 2007-02-15 | 2008-01-16 | 张文成 | Electronic type electric controlled valve positioner |
| CN101858457A (en) * | 2010-03-26 | 2010-10-13 | 潘辉义 | Intelligent electropneumatic valve positioner and control system |
| CN201973349U (en) * | 2011-01-28 | 2011-09-14 | 陕西科技大学 | Intelligent valve locater |
| CN202531968U (en) * | 2012-02-03 | 2012-11-14 | 深圳乐满油气技术有限公司 | Pneumatic positioning actuator capable of supplying air intermittently |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016460A (en) * | 2012-12-13 | 2013-04-03 | 浙江大学 | Photoelectric automatic exhaust valve for hydraulic system |
| CN103016460B (en) * | 2012-12-13 | 2015-05-13 | 浙江大学 | Photoelectric automatic exhaust valve for hydraulic system |
| CN111853303A (en) * | 2019-04-29 | 2020-10-30 | 比亚迪股份有限公司 | Explosion-proof valve, battery package and vehicle |
| CN111853303B (en) * | 2019-04-29 | 2021-12-07 | 比亚迪股份有限公司 | Explosion-proof valve, battery package and vehicle |
| CN111963749A (en) * | 2020-08-07 | 2020-11-20 | 宁波富仕达电力工程有限责任公司 | Novel box-type pneumatic actuating mechanism |
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Application publication date: 20120711 |