JPS56118595A - Variable-speed blower control device for prevention of surging - Google Patents
Variable-speed blower control device for prevention of surgingInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200487706Y1 (en) * | 2016-06-29 | 2018-10-24 | 주식회사 엘지생활건강 | Mascara |
Citations (1)
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 |
-
1980
- 1980-02-20 JP JP1924080A patent/JPS56118595A/en active Granted
Patent Citations (1)
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)
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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