Title:
BLOWER CONTROL METHOD
Document Type and Number:
Japanese Patent JP2017113674
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a blower control method enabling power consumption of a blower to be reduced.SOLUTION: The blower control method is provided for controlling at least one blower that supplies air to a plurality of reaction tanks via a manifold in a sewage treatment plant. One admission pipe among a plurality of admission pipes each connecting a plurality of the reaction tanks to the manifold is selected as a reference admission pipe. An actual pressure loss of an air flow control valve provided in the reference admission pipe is calculated based on an opening of the air flow control valve and a measured air flow rate in the reference admission pipe. A set pressure of the manifold is determined by PID control so that the calculated actual pressure loss agrees with a target pressure loss. At least one blower is controlled by PID control so that the measured pressure of the manifold agrees with the set pressure.SELECTED DRAWING: Figure 1
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Inventors:
HASHIMOTO AKIO
FUJIMOTO YOSHIHISA
MORI KENICHIRO
NAGAI YUTARO
FUJIMOTO YOSHIHISA
MORI KENICHIRO
NAGAI YUTARO
Application Number:
JP2015249664A
Publication Date:
June 29, 2017
Filing Date:
December 22, 2015
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD
International Classes:
C02F3/12; G05D16/00
Domestic Patent References:
| JPS6198418A | 1986-05-16 | |||
| JPS55104697A | 1980-08-11 | |||
| JPS56129088A | 1981-10-08 | |||
| JPH0735000U | 1995-06-27 |
Attorney, Agent or Firm:
Patent business corporation Yuko patent office