Title:
工業用プロセス効率化方法及びシステム
Document Type and Number:
Japanese Patent JP5384117
Kind Code:
B2
Abstract:
An industrial fluid circulation system and method has at least one fluid circulation circuit in an industrial process, such as an HVAC system. The at least one fluid circulation circuit includes a plurality of pumps, at least two of the pumps connected in parallel to circulate a fluid through the at least one fluid circulation circuit. A separate motor drives each pump and a speed control is used to vary the speed of each motor to thereby vary the pumping capacity of each parallel connected pump. A load detector is provided to sense operating loads on the system, and each operating pump runs at one of: a predetermined equal reduced speed, a predetermined almost equal reduced speed, and a predetermined similar reduced speed, relative to a maximum speed to thereby optimize pump motor power usage in accordance with system operating loads.
Inventors:
DAVID MAN CHU LAU
KA LIM SHEK
KA LIM SHEK
Application Number:
JP2008555566A
Publication Date:
January 08, 2014
Filing Date:
February 22, 2007
Export Citation:
Assignee:
DAVID MAN CHU LAU
KA LIM SHEK
KA LIM SHEK
International Classes:
F24F11/02; F24D3/00; F24F5/00
Domestic Patent References:
| JP2001241735A | ||||
| JP4198647A | ||||
| JP2002162087A | ||||
| JP58153052A | ||||
| JP2003106731A | ||||
| JP56000940A | ||||
| JP8075224A | ||||
| JP2002089935A | ||||
| JP59021933A | ||||
| JP60104648U | ||||
| JP2000121128A | ||||
| JP2002195628A | ||||
| JP4327738A | ||||
| JP64051111U |
Foreign References:
| US20040000155 |
Attorney, Agent or Firm:
Kenji Yoshitake
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Jie Yamanoi
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Jie Yamanoi