JPS56118595A - Variable-speed blower control device for prevention of surging - Google Patents

Variable-speed blower control device for prevention of surging

Info

Publication number
JPS56118595A
JPS56118595A JP1924080A JP1924080A JPS56118595A JP S56118595 A JPS56118595 A JP S56118595A JP 1924080 A JP1924080 A JP 1924080A JP 1924080 A JP1924080 A JP 1924080A JP S56118595 A JPS56118595 A JP S56118595A
Authority
JP
Japan
Prior art keywords
speed
suction valve
opening
blower
switches
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1924080A
Other languages
Japanese (ja)
Other versions
JPS641677B2 (en
Inventor
Shun Fukushima
Kunio Arishima
Takeya Fukumoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Nippon Steel Corp
Original Assignee
Fuji Electric Co Ltd
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd, Nippon Steel Corp filed Critical Fuji Electric Co Ltd
Priority to JP1924080A priority Critical patent/JPS56118595A/en
Publication of JPS56118595A publication Critical patent/JPS56118595A/en
Publication of JPS641677B2 publication Critical patent/JPS641677B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

PURPOSE: To reduce frequence of operating a suction valve and stabilize the work of a variable-speed blower by adjusting the opening of suction valve in steps in accordance with the blowing amount from the blower as well as by giving hysteresis with a certain width to the preset value of the blowing amount for the change-over point of opening of the suction valve.
CONSTITUTION: A speed sensing oscillator 21 senses off the revolving speed of a blower 11 and sends commands to two interlocked switches 17, 18 if the sensed speed is the No.1 speed, to let these switches make contact with a contact point (a), and changes over these to another contact point b if the sensed speed is the No.2 speed. The switches 17, 18 are thus arranged to be set to the terminal 11 if the sensed speed is the n'th speed. Combinations of the set comparators 16, 16... with an opening command device 14 are furnished in a number of n (S0WSn), and each combination is given a setting value of blowing amount for the change- over point of the opening of suction valve (damper) 12 provided with a hysteresis having a certain width. Accordingly, the frequence of operating the suction valve 12 decreases and its work is stabilized.
COPYRIGHT: (C)1981,JPO&Japio
JP1924080A 1980-02-20 1980-02-20 Variable-speed blower control device for prevention of surging Granted JPS56118595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1924080A JPS56118595A (en) 1980-02-20 1980-02-20 Variable-speed blower control device for prevention of surging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1924080A JPS56118595A (en) 1980-02-20 1980-02-20 Variable-speed blower control device for prevention of surging

Publications (2)

Publication Number Publication Date
JPS56118595A true JPS56118595A (en) 1981-09-17
JPS641677B2 JPS641677B2 (en) 1989-01-12

Family

ID=11993863

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1924080A Granted JPS56118595A (en) 1980-02-20 1980-02-20 Variable-speed blower control device for prevention of surging

Country Status (1)

Country Link
JP (1) JPS56118595A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134397A (en) * 1984-07-26 1986-02-18 Daido Steel Co Ltd Fan controlling device
WO2019147942A1 (en) * 2018-01-25 2019-08-01 Ohio State Innovation Foundation Method for supressing surge instabilities in turbomachine compressors

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200487706Y1 (en) * 2016-06-29 2018-10-24 주식회사 엘지생활건강 Mascara

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5499207A (en) * 1978-01-21 1979-08-04 Nippon Steel Corp Controlling system for prevention from surging in blower

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5499207A (en) * 1978-01-21 1979-08-04 Nippon Steel Corp Controlling system for prevention from surging in blower

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134397A (en) * 1984-07-26 1986-02-18 Daido Steel Co Ltd Fan controlling device
WO2019147942A1 (en) * 2018-01-25 2019-08-01 Ohio State Innovation Foundation Method for supressing surge instabilities in turbomachine compressors

Also Published As

Publication number Publication date
JPS641677B2 (en) 1989-01-12

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