Title:
CONTROL METHOD, APPARATUS, AND DEVICE FOR PRIMARY AIR OF COAL-FIRED UNIT
Document Type and Number:
WIPO Patent Application WO/2020/191873
Kind Code:
A1
Abstract:
A control method, apparatus, and device for primary air of a coal-fired unit. The method comprises: acquiring the resistance of each running coal mill in the coal-fired unit under the control of a primary air system in real time; adjusting the hot air door of the coal mill having the maximum resistance to be completely opened; adjusting the pressure of the air blower of the primary air system until the air volume of the coal mill having the maximum resistance meets the corresponding set air volume requirement of the coal mill; and maintaining the pressure of the air blower, and adjusting the hot air doors of other coal mills, so that the air volumes of other coal mills meet respective corresponding set air volume requirements. Therefore, the control method solves the technical problem of unnecessary power consumption in the control mode of an existing primary air system.
Inventors:
SHEN YUELIANG (CN)
YAO SHUNCHUN (CN)
YAO SHUNCHUN (CN)
Application Number:
PCT/CN2019/086353
Publication Date:
October 01, 2020
Filing Date:
May 10, 2019
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
GUANGDONG DIANKEYUAN ENERGY TECH CO LTD (CN)
GUANGDONG DIANKEYUAN ENERGY TECH CO LTD (CN)
International Classes:
F23N3/00; B02C23/18; B02C25/00
Foreign References:
| CN107191964A | 2017-09-22 | |||
| CN102798140A | 2012-11-28 | |||
| CN103712235A | 2014-04-09 | |||
| CN104456614A | 2015-03-25 | |||
| CN104646167A | 2015-05-27 | |||
| JPH0796923B2 | 1995-10-18 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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