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Dome valve control system and control method.

A technology of control system and control method, which is applied in the direction of valve operation/release device, valve details, valve device, etc., can solve the problem of unable to monitor the opening or closing state of the dome valve, and achieve the effect of improving the service life

Pending Publication Date: 2020-03-27
NORTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the existing local control box cannot monitor the opening or closing state of the dome valve, the present invention provides a control system and control method for the dome valve, which realizes the closed-loop control of the switching state of the dome valve, Real-time monitoring of the switch state of the dome valve improves the service life of the dome valve and effectively ensures the stable operation of the material conveying system

Method used

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  • Dome valve control system and control method.
  • Dome valve control system and control method.
  • Dome valve control system and control method.

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Embodiment Construction

[0053] The present invention will be further described in detail below in conjunction with the accompanying drawings, which are explanations rather than limitations of the present invention.

[0054] refer to Figure 1-4 , a dome valve control system, including a control device and a synchronous shaft 5, one end of the synchronous shaft 5 is connected to the control device, the other end is connected to one end of the rotating shaft of the cylinder 13, and the other end of the rotating shaft of the cylinder 13 is connected to the valve body 14 , the cylinder 13 is used to drive the valve body 14 to open and close, the synchronous shaft 5 and the rotating shaft of the cylinder 13 rotate synchronously, and the control device is installed on the cylinder 13 through the bracket 12 .

[0055] The control device includes a main control unit, a pneumatic unit and a signal acquisition unit; the main control unit is respectively connected with the signal acquisition unit and the pneuma...

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PUM

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Abstract

The invention provides a dome valve control system and control method, which are used in an electric control part of a dome valve in a material conveying system. When the valve is opened or closed, opening and closing feedback signals and sealing ring pressure signals on a synchronizing shaft are collected first, and then, a main control unit performs analysis, logic calculation, statistics and time delay on the signals and outputs a control instruction to conduct opening and closing, sealing ring inflation and deflation and other actions on the valve. Meanwhile, a fault display LED indicatorlamp is integrated on a circuit board and can remind a user of the fault type quickly, and the actual state of the valve is monitored in real time through an operation display unit on the side face.

Description

technical field [0001] The invention relates to a material conveying system of a power plant, in particular to a dome valve control system and a control method thereof. Background technique [0002] The dome valve has technical advantages such as good air tightness, no jamming, high temperature resistance, and soft sealing. At present, the charging valve (ash valve) and discharge valve in the domestic material conveying system generally use the dome valve, and are installed on site. The local control box is arranged, and its pneumatic part is often placed outside the local control box. [0003] Due to the harsh actual working conditions on site (high temperature, dust, etc.), the pneumatic part is easily corroded by fly ash because there is no airtight protection. Normal operation of the dome valve. In addition, there is generally only one feedback signal in the local control box, that is, the inflation pressure signal of the sealing ring of the dome valve, and there is no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K37/00F16K31/12
CPCF16K31/12F16K37/0091
Inventor 毕宁王浩康爱军李鹏贾晓慧陈钢杨洋
Owner NORTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP
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