JPS60117434U

JPS60117434U - Exhaust gas desulfurization equipment

Info

Publication number: JPS60117434U
Application number: JP429884U
Authority: JP
Inventors: 岸川　忠弘
Original assignee: 三菱重工業株式会社
Priority date: 1984-01-17
Filing date: 1984-01-17
Publication date: 1985-08-08

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図は従来例を示す排ガス脱硫装置の系統図、第２図
は本考案の一実施例を示す排ガス脱硫装置の系統図であ
る。１・・・ボイラ、ｌ・・・排ガス脱硫装置、６・・・脱
硫装置、７・・・脱硫ファン、８・・・バイパスダクト
、１０・・・空気流量検出器、２１・・・入口側圧力検
出器、２２・・・出口側圧力検出器、２４・・・比較器
、２６・・・演算制御回路。　　・FIG. 1 is a system diagram of an exhaust gas desulfurization device showing a conventional example, and FIG. 2 is a system diagram of an exhaust gas desulfurization device showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Boiler, l... Exhaust gas desulfurization device, 6... Desulfurization device, 7... Desulfurization fan, 8... Bypass duct, 10... Air flow rate detector, 21... Inlet side Pressure detector, 22... Outlet side pressure detector, 24... Comparator, 26... Arithmetic control circuit.・

Claims

[Scope of utility model registration request]

a desulfurization fan that sends exhaust gas from the combustion device to the desulfurization device; a bypass duct installed in parallel with the desulfurization fan and the desulfurization device; an air flow rate detector that detects the flow rate of air supplied to the combustion device; and the bypass. an inlet side pressure detector that detects the pressure on the inlet side of the duct; an outlet side pressure detector that detects the pressure on the outlet side of the bypass duct;
A comparator that compares the difference between the detection signal from the outlet side pressure detector and the detection signal from the inlet side pressure detector with a preset differential pressure signal, and the signal from the comparator and the air flow rate detection. An exhaust gas desulfurization device comprising: an arithmetic control circuit that controls the desulfurization fan so as to maintain a constant pressure difference between the inlet side and the outlet side of the bypass duct based on a signal from the bypass duct.