JPS60100596U

JPS60100596U - blower control device

Info

Publication number: JPS60100596U
Application number: JP19295383U
Authority: JP
Inventors: 徹小野寺
Original assignee: 株式会社日立製作所
Priority date: 1983-12-16
Filing date: 1983-12-16
Publication date: 1985-07-09

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 the drawing]

第１図は本考案のブロワの吐出風量制御の一例を示す側
御ブロック図、第２図は本考案のブロワ。制御装置の一例を示すシステム概略図、第３図は本考案
のサージング線図、第４図は本考案の吸込ベーン開度と
ブロワの吐出風量の関係を示す特性図、第５図は吸込ベ
ーンの開度指令信号と開度との関係を示す特性図、第６
図は補正後の吸込ベーン開度指令信号とブロアの吐出風
量との関係を示す線図である。１・・・・・・上位コンピュータ、２・・・・・・マイ
クロコンビ゛ユータ、３・・・・・・ブロワ、４・・・
・・・吸込ベーン、５・・・・・・放風弁、６・・・・
・・吐出弁、７・・・・・・吐出温度発信器、８・・・
・・・吸込温度発信器、９・・・・・・吐出圧力発信器
、１０・・・・・・吐出差圧発信器、１１・・・・・・
放風差圧発信機、１２・・・・・・設定吐出風量、１３
・・・・・・吐出風量演算器、１４・・・・・・サージ
ング限界関数発生器、１５・・・・・・放風風量演算器
、１６・・・・・・サージング判定回路、１７・・・・
・・吸込ベーン制御回路、１８・・・・・・補正回路、
１９・・・・・・放風弁制御回路、２０・・・・・・補
正回路。 −第２虐−゛・　−゛■川用− ８Ｘ１FIG. 1 is a side control block diagram showing an example of discharge air volume control of the blower of the present invention, and FIG. 2 is the blower of the present invention. A system schematic diagram showing an example of a control device, Fig. 3 is a surging diagram of the present invention, Fig. 4 is a characteristic diagram showing the relationship between the suction vane opening degree of the present invention and the discharge air volume of the blower, and Fig. 5 is a diagram of the suction vane. Characteristic diagram showing the relationship between the opening degree command signal and the opening degree, No. 6
The figure is a diagram showing the relationship between the suction vane opening degree command signal after correction and the discharge air volume of the blower. 1... Upper computer, 2... Microcomputer, 3... Blower, 4...
... Suction vane, 5... Air discharge valve, 6...
...Discharge valve, 7...Discharge temperature transmitter, 8...
...Suction temperature transmitter, 9...Discharge pressure transmitter, 10...Discharge differential pressure transmitter, 11...
Air discharge differential pressure transmitter, 12... Setting discharge air volume, 13
...Discharge air volume calculator, 14... Surging limit function generator, 15... Discharge air volume calculator, 16... Surging determination circuit, 17. ...
... Suction vane control circuit, 18... Correction circuit,
19... Air discharge valve control circuit, 20... Correction circuit. -Second Massage-゛・ -゛■Kawayo- 8X 1

Claims

[Scope of utility model registration request]

In a device that uses a suction vane and a blowoff valve to control the discharge air volume of a blower, a function is generated that corrects the surging curve determined by the blower with the suction temperature and outputs a limit discharge air volume at the surging limit according to the discharge pressure. outputting the difference between the limit discharge air volume and the set discharge air volume;
a surging determination circuit that determines whether the set discharge air volume is within a surging region; a suction vane opening control circuit;
a correction circuit for linearizing the change in the total discharge air volume of the blower with respect to the opening degree of the suction valve; A blower control device characterized by comprising a correction circuit that