CN202708276U - High-rangeability regulating valve control system - Google Patents
High-rangeability regulating valve control system Download PDFInfo
- Publication number
- CN202708276U CN202708276U CN 201220257608 CN201220257608U CN202708276U CN 202708276 U CN202708276 U CN 202708276U CN 201220257608 CN201220257608 CN 201220257608 CN 201220257608 U CN201220257608 U CN 201220257608U CN 202708276 U CN202708276 U CN 202708276U
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- CN
- China
- Prior art keywords
- valve
- control system
- valve body
- pressure transmitter
- valve control
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- 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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- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses a high-rangeability regulating valve control system which comprises a valve mechanism which is used for closing and opening a valve body. The high-rangeability regulating valve control system is characterized by further comprising a pressure transmitter, a PAD regulator and an air filtering pressure reducing valve, wherein the pressure transmitter is installed at the position of a valve body outlet pipe and is connected with the valve body outlet pipe, the PAD regulator is in signal transmission with the pressure transmitter and transfers signals to a positioner, the air filtering pressure reducing valve is connected with the positioner through an air pipe, the positioner is connected with an actuating mechanism of the valve body through an air pipe, and the actuating mechanism controls a valve core to move up and down. The high-rangeability regulating valve control system has the advantages that a series of operation mechanisms are installed on the valve body, so that fluid pressure can be collected at the outlet of the valve body, signal transmission is conducted, various operating actions are achieved, and self-overflow control can be achieved according to requirements of site working conditions.
Description
Technical field
The utility model belongs to a kind of modulating valve control system, relates to concretely a kind ofly need use overflow controlling valve of voltage regulation control system device for hot rolling engineering rolling rhythm water.
Technical background
General automatic control and adjustment valve all is to come the complete shut-down of regulating and controlling valve to the whole stroke of standard-sized sheet by control system telecontrol positioning work piece, just can set and observe Lift and the uninterrupted of spool in the control room.But some indivedual occasion does not have the control system remote control, therefore be necessary to overlap independently control system device by field working conditions design one as required, the utility model is exactly the control system of satisfactory a kind of high regulating ratio modulating valve of relating to according to above requirement, thereby realizes field control valve closing and unlatching.
The model utility content
The purpose of this utility model just provides a kind of high regulating ratio modulating valve control system, satisfies and need use overflow controlling valve of voltage regulation control system device according to the hot rolling engineering rolling rhythm water of field working conditions.
Content of the present utility model is a kind of high regulating ratio modulating valve control system, comprises and closes and open the valve mechanism that arranges on the valve body, it is characterized in that; Described modulating valve control system also includes and is arranged on the pressure transmitter that valve outlet pipe place is attached thereto, and the PAD regulator that transmits by signal of heel pressure transmitter, and described regulator passes the signal along to positioning work piece; And the air-filtering reduction valve that is connected with positioning work piece by tracheae, described positioning work piece is connected by the actuator that control spool on tracheae and the valve body moves up and down.Be connected with all parts in the control system by directly arranging at the valve outlet place, require closing of valve in the control valve body thereby reach according to field working conditions.
Further, described pressure transmitter is connected by Guan Yuqi with the valve outlet pipe, and fluid can enter into pressure transmitter.Connecting by pipeline just can be the direction of flow pressure transmitter, thereby test fluid pressure is made signal according to hydrodynamic pressure and transmitted to the PAD regulator.
Further, described positioning work piece is provided with valve for the path between opening and closing air-filtering reduction valve and the control mechanism.The transmission of the signal by the PAD regulator, the operation that allows positioning work piece make whether to allow the air-filtering reduction valve communicate with valve body actuator.
Further, described actuator comprises within it the diaphragm that arranges and is arranged on the spring of device on the spool axle bed that is used for return under the diaphragm.Carry out the spool return by the spring that arranges, allow the valve body valve open.
Beneficial effect
The beneficial effects of the utility model are by a series of operating device is set at valve body, thereby gather the pressure of fluid at the valve outlet place, thereby carry out the signal transmission, carry out various act of operation, realized requiring just can realize self-powering type overflow adjusting according to field working conditions.
Description of drawings
Accompanying drawing is structural representation of the present utility model.
Embodiment
As shown in the figure, it is high regulating ratio modulating valve control system of the present utility model, comprise valve body parts 1 and be fixedly mounted on valve body upper outlet pipe, be provided with the connecting tube that communicates with pipeline in the upper end of outer pipe, described connecting tube is connected with pressure transmitter 2, the hydrodynamic pressure transformation that pressure transmitter is come fluid is a kind of electrical signal to the PAD regulator 3 that is attached thereto, the electrical signal that PAD regulator 3 can be regulated 4-20mA transmits to positioning work piece 4, and positioning work piece 4 is connected with air-filtering reduction valve 5 and valve body valve actuator 6 respectively.
Such as figure, described control mechanism comprises within it the diaphragm 7 that arranges and is arranged on the spring 8 of device on the spool axle bed that is used for return under the diaphragm.Carry out the spool return by the spring that arranges, allow the valve body valve open.
Described PAD regulator output 4～20mA electrical signal is to positioning work piece, when 20mA, open air pressure by the location and transmit pressure to valve control mechanism, overcoming spring 8 pressure valve cores moves down, valve is closed condition, during 4mA, air pressure is lower, the resilience of spring overcoming pressure, spool moves up, and is opening state thereby make valve.When downstream pressure is 0.1MPa, pressure transmitter changes the pressure signal of 0.1MPa into electrical signal to the PAD regulator, it is to input to positioning work piece behind the 20mA that the PAD regulator is regulated electrical signal, positioning work piece is opened, the source of the gas of coming through the air-filtering reduction valve leads to final controlling element membrane cover 7 epicoeles, makes valve closing (flow is zero).When downstream pressure during less than 0.1MPa, pressure transmitter will change electrical signal into to the PAD regulator less than the pressure signal of 0.1MPa, the PAD regulator is regulated electrical signal and is inputed to positioning work piece after less than 20mA, positioning work piece is pressed signalizing activity, final controlling element membrane cover epicoele bleed pressure reduces, by spring force with valve open (through-current capacity behind the valve).The flow direction of the indicated expression fluid of arrow among the figure.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. one kind high regulating ratio modulating valve control system, comprise and close and open the valve mechanism that arranges on the valve body, it is characterized in that: described modulating valve control system also includes and is arranged on the pressure transmitter that valve outlet pipe place is attached thereto, and the PAD regulator that transmits by signal of heel pressure transmitter, described regulator passes the signal along to positioning work piece; And the air-filtering reduction valve that is connected with positioning work piece by tracheae, described positioning work piece is connected by the actuator that control spool on tracheae and the valve body moves up and down.
2. high regulating ratio modulating valve control system according to claim 1, it is characterized in that: described pressure transmitter is connected by Guan Yuqi with the valve outlet pipe, and fluid can enter into pressure transmitter.
3. high regulating ratio modulating valve control system according to claim 2 is characterized in that: described positioning work piece is provided with valve and is used for path between opening and closing air-filtering reduction valve and the actuator.
4. high regulating ratio modulating valve control system according to claim 3 is characterized in that: described actuator comprises the diaphragm that arranges within it and is arranged on the spring of device on the spool axle bed that is used for return under the diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257608 CN202708276U (en) | 2012-05-27 | 2012-05-27 | High-rangeability regulating valve control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257608 CN202708276U (en) | 2012-05-27 | 2012-05-27 | High-rangeability regulating valve control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708276U true CN202708276U (en) | 2013-01-30 |
Family
ID=47588582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220257608 Expired - Fee Related CN202708276U (en) | 2012-05-27 | 2012-05-27 | High-rangeability regulating valve control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708276U (en) |
-
2012
- 2012-05-27 CN CN 201220257608 patent/CN202708276U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20190527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |