Wear-resisting gate valve control method based on computer system

A technology of computer system and control method, applied in sliding valve, valve details, valve device and other directions, can solve the problems of poor wear resistance of valve seal, leakage of weld seam, perforation, etc., to improve service life and tightness, reduce gaps , the effect of small flow resistance

Active Publication Date: 2015-01-14
JIANG SU YAN DIAN FA MEN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a control valve for pipeline transportation, due to the solid particles in the medium, the first reason is that the valve seal has poor wear resistance, the sealing surface is easily damaged, and the weld seam of the valve body and seat is impenetrable, resulting in weld failure. perforation

Method used

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  • Wear-resisting gate valve control method based on computer system
  • Wear-resisting gate valve control method based on computer system
  • Wear-resisting gate valve control method based on computer system

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Embodiment Construction

[0116] The cryogenic ball valve of the present invention includes a valve body, a valve cover, a valve seat assembly, a ball, a valve stem, a spring, a fixed shaft, a long neck bracket, a top bracket, a driving device, and the like. The valve body and the valve cover each have flow passages, and the valve body and the valve cover are connected through gaskets, studs and nuts. The ball is placed in the valve body, and there is a valve seat assembly on both sides of the ball, which are respectively connected to the inside of the valve body and the valve cover. The driving device is connected to the upper part of the valve stem through a key, and the lower end of the valve stem is connected to the ball. The rotation makes the valve stem and the ball rotate around the axis to realize the opening and closing of the valve at 90°.

[0117] The bottom surface of the upper part of the sphere in contact with the valve stem adopts an arc surface, and the two sides are corresponding paral...

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Abstract

The invention discloses a wear-resisting gate valve control method based on a computer system. The wear-resisting gate valve control method comprises the followings steps: step 1: a main control module of a gate valve control system sends out a starting instruction; step 2: a temperature sensor enables a collected temperature signal to be respectively subjected to signal conversion and conduction of an A / D (Analogue / Digital) module and an I / O (Input / Output) module and reports the processed temperature signal to the main control module; step 3: a pressure sensor enables a collected pressure signal to be respectively subjected to the signal conversion and the conduction of the A / D module and the I / O module and reports the processed pressure signal to the main control module; and step 4: the main control module carries out moving average filtering. According to the method disclosed by the invention, the temperature sensor inputs the temperature signal. A display module has a gas-liquid valve state indication function. A gas-liquid valve state comprises a gas-liquid linking valve opening in-place instruction, a gas-liquid linking valve closing in-place instruction, a gas-liquid linking valve on-site / remote state and a control system explosion-proof door state.

Description

technical field [0001] The invention relates to the technical field of computer control methods, in particular to a computer system-based control method for wear-resistant gate valves. Background technique [0002] With the increasing production capacity of petroleum, petrochemical, electric power, metallurgy and other industries, there is an urgent need for a high-performance, high-parameter valve product to replace the original old product to ensure production and improve work efficiency. [0003] As a control valve for pipeline transportation, due to the solid particles in the medium, the first reason is that the valve seal has poor wear resistance, the sealing surface is easily damaged, and the weld seam of the valve body and seat is impenetrable, resulting in weld failure. Seam leakage or perforation. With the continuous improvement of valve technology and the emergence of high-performance materials and automation equipment, old products gradually withdraw from market ...

Claims

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Application Information

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IPC IPC(8): F16K31/02F16K3/00F16K3/30F16K27/10F16K5/06F16K37/00
Inventor 黄晓峰李昌跃李海伟顾世军马正平孙德林刘慎良
Owner JIANG SU YAN DIAN FA MEN CO LTD
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