JPS5920078U

JPS5920078U - control valve

Info

Publication number: JPS5920078U
Application number: JP11474682U
Authority: JP
Inventors: 中原　崇文; 藤本　哲郎; 村上　武文; 上田　三男
Original assignee: 三菱重工業株式会社
Priority date: 1982-07-30
Filing date: 1982-07-30
Publication date: 1984-02-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の代表的な空気圧駆動制御弁の説明図、第
２図は空気圧の駆動部の詳細図、第３図は空気圧が低下
すると弁が閉じる説明図、第４図は空気圧制御弁の代表
的な空気配管構成図、第５図は本考案の制御弁の一実施
例の制御システム構成図、第６図は従来の制御弁の開度
と閉時間の関係図、第７図は本考案の制御弁の弁の開度
と閉時間の関係図を示す。１・・・・−・弁本体、２・・・・・・弁ステム、３・
・・・・・ダイヤフラムケース、４・・・・・・ヨーク
、５・・・・・・弁棒、６・・・・・・空気入口ノズル
、７・・・・・・ダイヤフラム、８・・・・・・面積板
、９・・・・・・ばね、１０・・・・・・ポジショナ、
１１゜１２．１３・・・・・・空気圧配管（内径４ｍｍ
程度）、１４・・・・・・開度設定器、１５・・・・・
・二方口電磁弁、１６．１７・・・・・・空気圧配管（
大口径内径１５７７１７７１程度）。片４１￥１第５図Fig. 1 is an explanatory diagram of a typical conventional pneumatically driven control valve, Fig. 2 is a detailed diagram of the pneumatic drive section, Fig. 3 is an explanatory diagram of the valve closing when air pressure decreases, and Fig. 4 is an explanatory diagram of the pneumatic control valve. FIG. 5 is a control system configuration diagram of an embodiment of the control valve of the present invention, FIG. 6 is a diagram showing the relationship between the opening degree and closing time of a conventional control valve, and FIG. FIG. 2 is a diagram showing the relationship between the opening degree and the closing time of the control valve of the present invention. 1... Valve body, 2... Valve stem, 3...
...Diaphragm case, 4...Yoke, 5...Valve stem, 6...Air inlet nozzle, 7...Diaphragm, 8... ... Area plate, 9 ... Spring, 10 ... Positioner,
11゜12.13...Pneumatic piping (inner diameter 4mm
degree), 14...Opening degree setting device, 15...
・Two-way solenoid valve, 16.17...Pneumatic piping (
Large diameter inner diameter approximately 15771771). 41 yen per piece Figure 5

Claims

[Scope of utility model registration request]

The air pressure signal from the opening setting device is connected to the positioner via piping, and the positioner compares the opening signal from the opening setting device with the current opening of the valve and applies air pressure according to the difference to the diaphragm via piping. 1. A pneumatic drive control valve with a positioner attached to a case, characterized in that a valve for supplying or exhausting compressed air is provided between the positioner and the pneumatic drive section.