Title:
Air volume control system and air volume control method
Document Type and Number:
Japanese Patent JP6310349
Kind Code:
B2
Abstract:
A flow rate controlling system includes: a flow rate balance determining portion that determines a supply flow rate, regulated by a supply air valve, and a common exhaust flow rate, regulated by a common exhaust air valve, so that a difference between the supply flow rate and an exhaust flow rate, regulated by the common exhaust air valve, matches a set point; a valve monitoring portion that monitors the supply air valve, the common exhaust air valve, and a local exhaust air valve; and a flow rate changing portion that issues a flow rate changing instruction to the flow rate balance determining portion. When there is a fault in the supply air valve and/or the common exhaust air valve, the flow rate balance determining portion, upon receipt of the flow rate changing instruction from the flow rate changing portion, changes neither the supply nor common exhaust flow rate.
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Inventors:
Nobuo Osawa
Application Number:
JP2014144740A
Publication Date:
April 11, 2018
Filing Date:
July 15, 2014
Export Citation:
Assignee:
Azbil Co., Ltd.
International Classes:
F24F7/007; F24F7/06; F24F7/08; F24F11/72; F24F11/74
Domestic Patent References:
| JP2012237527A | ||||
| JP2012251729A | ||||
| JP2012225624A |
Attorney, Agent or Firm:
Masaki Yamakawa
Shigeki Yamakawa
Shigeki Yamakawa