Title:
ANTI-BLOCKING PURGING SYSTEM FOR ACOUSTIC TEMPERATURE MEASUREMENT DEVICE OF COAL-FIRED BOILER, AND METHOD FOR USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/236701
Kind Code:
A1
Abstract:
An anti-blocking purging system for an acoustic temperature measurement device of a coal-fired boiler, and a method for using same. The anti-blocking purging system comprises an automatic drainage pressure stabilization tank, which maintains the pressure of a downstream purging gas; and a purging main pipeline (4), wherein a micro-pressure purging branch (5) and a periodic purging branch (6) are provided between the purging main pipeline (4) and each acoustic temperature measurement element, and the purging pressure and gas amount of the periodic purging branch (6) are both greater than those of the micro-pressure purging branch (5). A pressure regulating valve regulation branch and a manual valve regulation branch are installed on the micro-pressure purging branch (5), wherein the pressure regulating valve regulation branch is provided with a micro-pressure purging branch pressure regulating valve (14), and the manual valve regulation branch is provided with a micro-pressure purging branch manual valve (13); and the periodic purging branch (6) is provided with a periodic purging branch manual valve (12) and a periodic purging branch electromagnetic valve (11). By means of the turning on-off of manual valves and electromagnetic valves, the anti-blocking purging system can realize periodic and quantitative purging to blow away accumulated dust in acoustic waveguides (7) in a timely manner, can determine, according to a pressure falling speed after purging, whether the interiors of measurement holes are unblocked, so as to adjust the periodic purging time of acoustic temperature measurement elements in a timely manner, and has a high intelligence level and a good anti-blocking purging effect.
Inventors:
TANG RONGFU (CN)
YU CHANGKAI (CN)
WU XUN (CN)
ZHOU XIANCHUN (CN)
LIANG YANXUAN (CN)
CHEN FEIYUN (CN)
WANG LIANG (CN)
CHENG HUANYANG (CN)
ZHANG DANPING (CN)
LI CHAO (CN)
WANG JUN (CN)
PENG WENQIAN (CN)
LIANG HAO (CN)
YU CHANGKAI (CN)
WU XUN (CN)
ZHOU XIANCHUN (CN)
LIANG YANXUAN (CN)
CHEN FEIYUN (CN)
WANG LIANG (CN)
CHENG HUANYANG (CN)
ZHANG DANPING (CN)
LI CHAO (CN)
WANG JUN (CN)
PENG WENQIAN (CN)
LIANG HAO (CN)
Application Number:
PCT/CN2023/092668
Publication Date:
December 14, 2023
Filing Date:
May 08, 2023
Export Citation:
Assignee:
HUANENG CHONGQING LUOHUANG POWER GENERATION CO LTD (CN)
XIAN THERMAL POWER RES INST CO (CN)
XIAN THERMAL POWER RES INST CO (CN)
International Classes:
B08B9/032
Foreign References:
| CN115069693A | 2022-09-20 | |||
| CN112657960A | 2021-04-16 | |||
| CN201041522Y | 2008-03-26 | |||
| CN209311153U | 2019-08-27 | |||
| CN214441530U | 2021-10-22 | |||
| JP2000087813A | 2000-03-28 | |||
| US20030136318A1 | 2003-07-24 | |||
| US20160369713A1 | 2016-12-22 |
Attorney, Agent or Firm:
BEIJING RAINBOW XINGYUAN INTELLECTUAL PROPERTY LAW FIRM (CN)
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