Title:
AUTOMATIC CONTROL METHOD AND SYSTEM FOR AIR COOLING CONDENSER FAN
Document Type and Number:
WIPO Patent Application WO/2021/223387
Kind Code:
A1
Abstract:
The present invention relates to an automatic control method and system for an air cooling condenser fan. The method comprises: obtaining a feature parameter of a working state of an air cooling condenser, wherein the feature parameter is a temperature transition interface position or a temperature transition interface position deviation; and using the feature parameter as an input signal, and processing the input signal and converting same to a fan frequency signal, a fan voltage signal, or a fan current signal to execute closed-loop control of the fan until the feature parameter is consistent with a target feature parameter. The system comprises an air cooling condenser temperature transition interface capturing device, a signal conversion device, and a control device, wherein the air cooling condenser temperature transition interface capturing device comprises a temperature measurement element, a data collection device, and a data processing device. According to the present invention, the feature parameter or a temperature parameter of the working state of the air cooling condenser is used as the input signal of the control system, so that the closed-loop control of the air cooling condenser fan is implemented, the purposes of optimizing operation of a cold end, saving power consumption of the fan, and preventing the air cooling condenser from freezing are achieved, and the control system is simplified.
Inventors:
WAN KUIFANG (CN)
QIU GUIZHI (CN)
WANG WEI (CN)
WANG RAN (CN)
GUO TINGTING (CN)
SONG YIN (CN)
QIU GUIZHI (CN)
WANG WEI (CN)
WANG RAN (CN)
GUO TINGTING (CN)
SONG YIN (CN)
Application Number:
PCT/CN2020/126613
Publication Date:
November 11, 2021
Filing Date:
November 05, 2020
Export Citation:
Assignee:
THERMAL POWER TECH RESEARCH INSTITUTE OF CHINA DATANG CORPORATION SCIENCE AND TECH RESEARCH INSTITUT (CN)
International Classes:
F28B11/00
Foreign References:
| CN111637762A | 2020-09-08 | |||
| CN105157444A | 2015-12-16 | |||
| CN107543427A | 2018-01-05 | |||
| CN107062936A | 2017-08-18 | |||
| CN104848708A | 2015-08-19 | |||
| CN102322749A | 2012-01-18 | |||
| CN106855365A | 2017-06-16 | |||
| JPH0914890A | 1997-01-17 | |||
| CN108645523A | 2018-10-12 |
Attorney, Agent or Firm:
CN-ZHONGNAN CHAF INTELLECTUAL PROPTY AGENT OFFICE. (CN)
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