CN208107277U - A kind of electropneumatic valve positioner - Google Patents
A kind of electropneumatic valve positioner Download PDFInfo
- Publication number
- CN208107277U CN208107277U CN201820277333.2U CN201820277333U CN208107277U CN 208107277 U CN208107277 U CN 208107277U CN 201820277333 U CN201820277333 U CN 201820277333U CN 208107277 U CN208107277 U CN 208107277U
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- CN
- China
- Prior art keywords
- nozzle
- shell
- torque
- motor
- valve positioner
- 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.)
- Expired - Fee Related
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- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Servomotors (AREA)
Abstract
The utility model discloses a kind of electropneumatic valve positioners, including：Shell, control circuit, driving circuit, torque-motor, nozzle flapper, pneumatic amplifier and regulating valve；It is respectively equipped with input channel and output channel on the shell, throttling set and nozzle are installed on the input channel, the regulating valve bottom end is equipped with feedback rod, and described feedback rod one end is equipped with feedback transducer；The control circuit, the driving circuit and the torque-motor are sequentially connected, and are equipped with electromagnetic coil and nozzle flapper in the torque-motor.Through the above way, a kind of electropneumatic valve positioner of the utility model, the valve positioner uses the instrument current signal of 4-20mA standard, input current signal makes electromagnetic coil generate magnetic force, the spacing between nozzle flapper is adjusted by magnetic drive torque-motor to control pneumatic amplifier, and the aperture of control valve is carried out by the variation of pneumatic amplifier output pressure.
Description
Technical field
The utility model relates to field of optical, more particularly, to a kind of electropneumatic valve positioner.
Background technique
With the fast development of microelectronics information, the automatic controlling level of industrial process is also evolving raising, valve
The control of door will also develop towards digitlization, intelligentized control method direction.
Valve positioner is the main accessories of regulating valve, is usually matched with pneumatic control valve, it receives adjuster
Then output signal removes control pneumatic control valve with its output signal, after adjusting valve events, the displacement of valve rod is further through machine
For tool device feedback to valve positioner, valve position situation is transmitted to Upper system by electric signal.
Utility model content
The utility model can pass through the change of pressure mainly solving the technical problems that provide a kind of electropneumatic valve positioner
Change the aperture for carrying out control valve.
In order to solve the above technical problems, the technical solution that the utility model uses is：A kind of electropneumatic valve positioner,
Including：Shell, control circuit, driving circuit, torque-motor, pneumatic amplifier and regulating valve, the control circuit, the driving
Circuit, the torque-motor and the pneumatic amplifier are installed in the shell；
Input channel and output channel are respectively equipped on the shell, the input channel is connected with the pneumatic amplifier
Connect, throttling set and nozzle be installed on the input channel, the output channel respectively with the regulating valve and described pneumatic
Amplifier is connected, and the regulating valve bottom end is equipped with feedback rod, and described feedback rod one end is equipped with feedback transducer, described anti-
Infeed sensor device is located in the shell；
The control circuit, the driving circuit and the torque-motor are sequentially connected, and are equipped in the torque-motor
Electromagnetic coil and nozzle flapper, the nozzle flapper are located at the electromagnetic coil lower end, and the nozzle is located at the nozzle flapper
Lower end.
In one preferred embodiment of the utility model, the input channel be divided into behind two root canal roads in the shell with
The pneumatic amplifier is connected.
In one preferred embodiment of the utility model, the throttling set and the nozzle are located at the input channel
Between two root canal roads.
In one preferred embodiment of the utility model, the throttling set is located on the right side of the nozzle.
In one preferred embodiment of the utility model, input is installed on the input channel outside the shell
Pressure gauge.
In one preferred embodiment of the utility model, output is installed on the output channel outside the shell
Pressure gauge.
In one preferred embodiment of the utility model, the control circuit is believed using the instrument electric current of 4-20mA standard
Number.
In one preferred embodiment of the utility model, the nozzle flapper is in contact with the nozzle.
The utility model has the beneficial effects that：A kind of electropneumatic valve positioner of the utility model, the valve positioner use
The instrument current signal of 4-20mA standard, input current signal make electromagnetic coil generate magnetic force, pass through magnetic drive torque-motor
The spacing between nozzle flapper is adjusted to control pneumatic amplifier, by the variation of pneumatic amplifier output pressure thus to control
The aperture of valve.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of electropneumatic valve positioner.
The components in the drawings are labeled as follows：1, shell；2, control circuit；3, driving circuit；4, torque-motor；5, pneumatic
Amplifier；6, regulating valve；7, input channel；8, output channel；9, nozzle flapper；10, nozzle；11, input pressure table；12, defeated
Pressure gauge out；13, throttling set；14, electromagnetic coil；15, feedback rod；16, feedback transducer.
Specific embodiment
The preferred embodiment of the utility model is described in detail below, so that the advantages of the utility model and feature energy
It is easier to be readily appreciated by one skilled in the art, to be more clearly defined the protection scope of the utility model.
According to Fig. 1, a kind of electropneumatic valve positioner, including：Shell 1, control circuit 2, driving circuit 3, torque-motor 4,
Pneumatic amplifier 5 and regulating valve 6, the control circuit 2, the driving circuit 3, the torque-motor 4 and the pneumatic amplification
Device 5 is installed in the shell 1, and the shell 1 plays the role of the installation to all components.
Input channel 7 and output channel 8 are respectively equipped on the shell 1, the input channel 7 is transferred to institute for air pressure
It states in pneumatic amplifier 5 and the nozzle 10, input pressure will be installed on the input channel 7 being located at outside the shell 1
Table 11,11 table of input pressure are used to monitor the air pressure in the input channel 7.
The input channel 7 is connected after being divided into two root canal roads in the shell 1 with the pneumatic amplifier 5, described
Throttling set 13 and nozzle 10 are installed, the throttling set 13 and the nozzle 10 are located at the input pipe on input channel 7
Between the two root canal roads in road 8, the throttling set 13 is located at 10 right side of nozzle, and the throttling set 13 is used for air pressure shape
At local contraction, so that flow velocity be made to increase.
The output channel 8 is connected with the regulating valve 6 and the pneumatic amplifier 5 respectively, and the output channel 8 is used
In will be transported in the regulating valve 6 through the amplified air pressure of the pneumatic amplifier 5.
Delivery gauge 12 is installed on the output channel 8 outside the shell 1, the delivery gauge 12 is used
Air pressure in the monitoring output channel 8.
6 bottom end of regulating valve is equipped with feedback rod 15, and described 15 one end of feedback rod is equipped with feedback transducer 16, described
Feedback transducer 16 is located in the shell 1, and the feedback transducer 16 is used to measure valve and executes the stroke after operation.
The control circuit 2, the driving circuit 3 and the torque-motor 4 are sequentially connected, and the control circuit 2 uses
The instrument current signal of 4-20mA standard.
Electromagnetic coil 14 and nozzle flapper 9 are installed, the driving circuit 3 passes through the control in the torque-motor 4
The input current signal that circuit 2 transmits makes the electromagnetic coil 14 generate magnetic force.
The nozzle flapper 9 is located at 14 lower end of electromagnetic coil, and the nozzle 10 is located at 9 lower end of nozzle flapper,
The nozzle flapper 9 is in contact with the nozzle 10, and torque-motor 4 described in the magnetic drive that the electromagnetic coil 14 generates is adjusted
Spacing between the nozzle flapper 9 and the nozzle 10 controls the pneumatic amplifier 5, passes through the pneumatic amplifier 5
The variation of output pressure is to carry out the aperture of control valve.
In use, being input in the control circuit 2 using the instrument current signal of 4-20mA standard, the control cable
The 2 control driving circuits 3, the driving circuit 3 make the electromagnetism by the input current signal that the control circuit 2 transmits
Coil 14 generates magnetic force, and torque-motor 4 described in the magnetic drive that the electromagnetic coil 14 generates adjusts the nozzle flapper 9 and institute
The spacing between nozzle 10 is stated to control the pneumatic amplifier 5, by the variation of 5 output pressure of pneumatic amplifier to
Carry out the aperture of control valve.
Compared with prior art, a kind of electropneumatic valve positioner of the utility model, the valve positioner are marked using 4-20mA
Quasi- instrument current signal, input current signal make electromagnetic coil generate magnetic force, adjust nozzle by magnetic drive torque-motor
Spacing between baffle controls pneumatic amplifier, passes through the variation of pneumatic amplifier output pressure to carry out opening for control valve
Degree.
In the description of the present invention, it should be noted that term " on ", "lower", "left", "right", "inner", "outside" etc.
The orientation or positional relationship of instruction be based on the orientation or positional relationship shown in the drawings or the utility model product use when
The orientation or positional relationship usually put, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
The limitation of the utility model.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (8)
1. a kind of electropneumatic valve positioner, which is characterized in that including：It is shell, control circuit, driving circuit, torque-motor, pneumatic
Amplifier and regulating valve, the control circuit, the driving circuit, the torque-motor and the pneumatic amplifier are installed in
In the shell；
Input channel and output channel are respectively equipped on the shell, the input channel is connected with the pneumatic amplifier,
Throttling set and nozzle be installed on the input channel, the output channel respectively with the regulating valve and the pneumatic amplification
Device is connected, and the regulating valve bottom end is equipped with feedback rod, and described feedback rod one end is equipped with feedback transducer, and the feedback passes
Sensor is located in the shell；
The control circuit, the driving circuit and the torque-motor are sequentially connected, and are equipped with electromagnetism in the torque-motor
Coil and nozzle flapper, the nozzle flapper are located at the electromagnetic coil lower end, and the nozzle is located at the nozzle flapper lower end.
2. a kind of electropneumatic valve positioner according to claim 1, which is characterized in that the input channel is in the shell
It is connected after being divided into two root canal roads with the pneumatic amplifier.
3. a kind of electropneumatic valve positioner according to claim 2, which is characterized in that the throttling set and the nozzle position
Between two root canal roads of the input channel.
4. a kind of electropneumatic valve positioner according to claim 3, which is characterized in that the throttling set is located at the nozzle
Right side.
5. a kind of electropneumatic valve positioner according to claim 1, which is characterized in that the input outside the shell
Input pressure table is installed on pipeline.
6. a kind of electropneumatic valve positioner according to claim 1, which is characterized in that the output outside the shell
Delivery gauge is installed on pipeline.
7. a kind of electropneumatic valve positioner according to claim 1, which is characterized in that the control circuit is marked using 4-20mA
Quasi- instrument current signal.
8. a kind of electropneumatic valve positioner according to claim 1, which is characterized in that the nozzle flapper and the nozzle phase
Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820277333.2U CN208107277U (en) | 2018-02-27 | 2018-02-27 | A kind of electropneumatic valve positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820277333.2U CN208107277U (en) | 2018-02-27 | 2018-02-27 | A kind of electropneumatic valve positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208107277U true CN208107277U (en) | 2018-11-16 |
Family
ID=64125435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820277333.2U Expired - Fee Related CN208107277U (en) | 2018-02-27 | 2018-02-27 | A kind of electropneumatic valve positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208107277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551075A (en) * | 2020-04-25 | 2021-10-26 | 上海梅山钢铁股份有限公司 | Anti-jamming control device and control method for air outlet check valve of blast furnace blower |
-
2018
- 2018-02-27 CN CN201820277333.2U patent/CN208107277U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551075A (en) * | 2020-04-25 | 2021-10-26 | 上海梅山钢铁股份有限公司 | Anti-jamming control device and control method for air outlet check valve of blast furnace blower |
| CN113551075B (en) * | 2020-04-25 | 2023-05-09 | 上海梅山钢铁股份有限公司 | Anti-jamming control device and control method for air outlet check valve of blast furnace blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181116 Termination date: 20200227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |