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Adjusting type electric execution method and mechanism based on flow control

An electric actuator and flow control technology, applied in the direction of electric controllers, controllers with specific characteristics, etc., can solve problems such as system delays, achieve the effects of reducing system delays, avoiding adjustment oscillations, and speeding up response speed

Pending Publication Date: 2022-03-11
江苏海博流体控制有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to solve the system delay problem existing when the existing DCS control system sends the valve opening instruction to the electric actuator

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  • Adjusting type electric execution method and mechanism based on flow control
  • Adjusting type electric execution method and mechanism based on flow control
  • Adjusting type electric execution method and mechanism based on flow control

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Embodiment Construction

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] The flow control of DCS is based on valve opening control, which belongs to indirect control. There is system delay, and some oscillations exist. In extreme cases, it may even lead to the occurrence of tripping accidents. Type electric actuator method and mechanism.

[0034] The first embodiment of the present invention relates to an adjustable electric actuator method based ...

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Abstract

The invention belongs to the technical field of flow control, and particularly relates to an adjusting type electric execution method and mechanism based on flow control. The method comprises the following steps: acquiring a flow regulation signal sent by a DCS (Distributed Control System); the flow adjusting signal is obtained by the DCS according to the actual detection flow of the pipeline and the required flow of the pipeline; obtaining the valve adjusting direction according to the flow adjusting signal, and calculating the valve adjusting speed according to the valve adjusting time; and the valve opening and closing angle of the electric actuating mechanism is adjusted according to the valve adjusting direction, the valve adjusting time and the valve adjusting speed. According to the invention, the response speed of the electric actuating mechanism is accelerated, and the situation of system delay is reduced; meanwhile, the electric executing mechanism has a PID fuzzy algorithm, the opening degree of the valve is automatically controlled according to a flow control adjusting instruction and the actual flow amount of the pipeline, the conditions of adjusting oscillation, overshoot and the like can be effectively avoided, the adjusting speed is high, and the adjusting precision is high.

Description

technical field [0001] The invention belongs to the technical field of flow control, and in particular relates to an adjustable electric execution method and mechanism based on flow control. Background technique [0002] The flow control based on the DCS control system on the market today compares the actual demand flow with the actual flow of the pipeline obtained by the flowmeter, and the valve opening control is realized by sending the valve opening instruction to the electric actuator through the DCS control system, but The flow control of the DCS control system is based on the valve opening control, which is an indirect control. There is a system delay and due to the corresponding lag, there are control oscillations of the electronic control actuator in some occasions, which may even cause a trip accident. Contents of the invention [0003] The technical problem to be solved by the invention is to solve the system delay problem existing when the existing DCS control s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 高越王红明
Owner 江苏海博流体控制有限公司
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