JPH03120539U

JPH03120539U -

Info

Publication number: JPH03120539U
Application number: JP2620790U
Authority: JP
Priority date: 1990-03-16
Filing date: 1990-03-16
Publication date: 1991-12-11

Description

[Brief explanation of drawings]

第１図は本考案の第１実施例の構成ブロツク線
図、第２図は従来のガス化炉の燃料、空気供給系
統図、第３図は同従来のガス化炉の燃料・空気制
御ブロツク線図である。１ｓ……コンバスタガス温度設定信号、２ｓ…
…コンバスタガス温度信号、２２ａ……減算器、
３４……不感帯型非線形素子、５ａ……ＰＩコン
トローラ、６……加算器。 Fig. 1 is a configuration block diagram of the first embodiment of the present invention, Fig. 2 is a fuel and air supply system diagram of a conventional gasifier, and Fig. 3 is a fuel/air control block of the conventional gasifier. It is a line diagram. 1s...combustor gas temperature setting signal, 2s...
...Combustor gas temperature signal, 22a...Subtractor,
34... Dead band type nonlinear element, 5a... PI controller, 6... Adder.

Claims

[Scope of utility model registration request]

In a coal gasifier having a combustor and a reductor, a first function generator receives a gasifier request load signal and calculates a total coal amount demand signal, and inputs the output of the function generator and a reductor coal rate setting signal. an integrator, a first subtractor that inputs the combustor gas temperature setting signal and the combustor gas temperature signal and outputs the deviation thereof; a dead band type nonlinear element that receives the output of the subtracter; The first PI that outputs the received bias signal
a controller, an adder receiving the output of the PI controller and the output of the integrator, a second subtracter having the output of the adder as the addition input and the reductor coal input amount signal as the subtraction input; a second PI controller that receives the output and outputs a reductor table feeder speed command signal; and a third subtracter that uses the output of the first function generator as an addition input and the output of the adder as a subtraction input. , a fourth subtracter that uses the output of the subtracter as an addition input and subtracts the combustor coal input amount signal, and a third PI controller that receives the output of the subtracter and outputs a combustor table feeder speed command signal; A second function generator receives the gasifier request load signal and outputs a total air amount demand signal; 5 subtractor,
a sixth subtractor that inputs the output of the subtracter as addition input and subtracts the secondary air flow signal; and a fourth PI controller that receives the output of the subtracter and outputs a secondary air flow control valve opening command signal. A combustor temperature control device comprising: