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Valve actuator

A driver and valve technology, applied to valve details, valve devices, engine components, etc., can solve problems such as poor positioning accuracy, incapable of intelligent adjustment, complex adjustment, etc., and achieve the effect of improving control accuracy

Inactive Publication Date: 2015-04-15
BEIJING YUENENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In many industries (such as power plants, chemical plants, sewage treatment plants, etc.) valves are process-regulated, that is, the opening of the valve needs to be precisely adjusted. Due to the mechanical positioning of the existing valve drivers, the positioning accuracy is poor, and intelligent adjustment cannot be performed. , the adjustment is complicated, and it is no longer suitable for the automatic intelligent control required by modern factories

Method used

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Embodiment Construction

[0021] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0022] A kind of valve driver of the present invention is used for connecting PLC and valve, such as Figure 1-3 As shown, it includes the driver casing and the valve block 7 arranged in the driver casing, the quick switching solenoid valve 6, the feedback shaft 4, the transmission gear 5, the potentiometer 3 and the feedback circuit board 10; the driver casing and the valve block 7 are provided with The air holes that cooperate with each other, the quick switching solenoid valve 6 is integrated on the valve block 7, cooperates with the air hole of the valve block 7, and controls the opening of the valve under the control of PLC; The attachment is connected to trans...

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Abstract

The invention discloses a valve actuator for connecting a PLC (programmable logic controller) and a valve. The valve actuator comprises an actuator shell and a valve block arranged in the actuator shell, fast switch solenoid valves, a resetting shaft, transmission gears, potentiometers and a feedback circuit board, wherein the actuator shell and the valve block are both provided with air holes which are matched, the fast switch solenoid valves are integrated on the valve block and are matched with the air holes, and the fast switch solenoid valves can control the opening of the valve under the control of the PLC; one end of the resetting shaft stretches out the actuator shell and is used for connecting with a valve accessory so as to send the opening information of the valve, the other end of the resetting shaft is connected with the potentiometers through the transmission gears, and the potentiometers can feed back the opening information of the valve; and the potentiometers are connected with the feedback circuit board, the feedback circuit board converts a resistance value of the opening information of the valve fed back by the potentiometers into a current signal so as to send the PLC, and the PLC closed loop feedback control is realized. The valve actuator provided by the invention is utilized as a control device of a switch-type valve and can realize the process control of the valve with the PLC together, and the accurate positioning of the valve is performed.

Description

technical field [0001] The invention relates to a valve driver, which is an automatic device for adjusting the opening of a valve in the process control industry, and is an intelligent control device combining electronic technology with pneumatic or hydraulic technology. Background technique [0002] In many industries (such as power plants, chemical plants, sewage treatment plants, etc.) valves are process-regulated, that is, the opening of the valve needs to be precisely adjusted. Due to the mechanical positioning of the existing valve drivers, the positioning accuracy is poor, and intelligent adjustment cannot be performed. , the adjustment is complicated, and it is no longer suitable for the automatic intelligent control required by modern factories. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings and deficiencies of the above-mentioned prior art, and provide a valve driver that can realize precise adjustment of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/12F16K37/00
Inventor 赵子刚蒋全张海军王辉张丽丽王涛王艺璇
Owner BEIJING YUENENG TECH
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