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Control system for valves

A control system and valve technology, applied in the direction of valve operation/release devices, valve details, valve devices, etc., can solve problems with high complexity and achieve the effect of reducing complexity

Active Publication Date: 2019-01-08
WUHAN NANHUA IND EQUIP ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention solves the technical problem of high complexity in the prior art by providing a control system for valves

Method used

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  • Control system for valves
  • Control system for valves
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Embodiment Construction

[0028] The embodiment of the present invention solves the technical problem of high complexity in the prior art by providing a control system for a valve.

[0029] The technical solution in the embodiment of the present invention is to solve the above-mentioned problems, and the general idea is as follows:

[0030] In the embodiment of the present invention, the first parameter monitoring component, the second parameter monitoring component, the controller, the input device and the electric valve form a closed-loop negative feedback system, and the controller passes the feedback signal of the first parameter monitoring component and the second parameter monitoring component Select, so as to properly revise the given value input by the input device, and then output the control opening signal to the electric valve, and so on, and finally make the pressure, flow or temperature in the pipeline meet the requirements of the given value, ensuring Each electric valve has an independen...

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Abstract

The invention discloses a control system for valves. The control system comprises a first parameter monitoring component, a second parameter monitoring component, a controller and an input device; thefirst parameter monitoring component and the second parameter monitoring component are arranged inside a pipeline; the output end of the first parameter monitoring component and the output end of thesecond parameter monitoring component are connected with the signal input end of the controller; the output end of the controller is connected with the signal input end of each to-be-controlled valve; and the signal output end of the input device is connected with the input end of the controller. According to the control system, the parameter monitoring components, the controller, the input device and each electric valve form a closed-loop negative feedback system, feedback signals of the two parameter monitoring components are selected by the controller, a set value is revised, then controlopening degree signals is output to the electric valves, the pressure, the flow or the temperature inside the pipeline reaches the set value, each electric valve has the independent closed-loop negative feedback system, traditional electric valve control is transferred downwards, and the control complexity is reduced.

Description

technical field [0001] The invention relates to the technical field of control systems, in particular to a control system for valves. Background technique [0002] At present, electric valves are widely used in shipbuilding, metallurgy, petrochemical and other fields, and are installed in various corrosive media such as water, air, steam, mud and oil pipeline systems, and are composed of pressure sensors and flow sensors. a tiny system. The new electric regulating butterfly valve has quasi-equal percentage regulating characteristics, and the three-dimensional CFD technology can be fully applied to the actual work. [0003] At present, the method of monitoring electric valves at the field level is the centralized control of the upper-level equipment. The defect of this control method is that it is highly complex. Contents of the invention [0004] The present invention solves the technical problem of high complexity in the prior art by providing a control system for a val...

Claims

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Application Information

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IPC IPC(8): F16K31/02
CPCF16K31/02
Inventor 何季平徐应年张诚卢思思
Owner WUHAN NANHUA IND EQUIP ENG