Title:
SELF-CLEANING AIR PREHEATER
Document Type and Number:
WIPO Patent Application WO/2021/179928
Kind Code:
A1
Abstract:
A self-cleaning air preheater, comprising: a heat exchange chamber (1); a flue gas inlet (2) provided at the top end of the heat exchange chamber (1); a flue gas exhaust port (3) provided at the bottom end of the heat exchange chamber (1); a plurality of heat exchange tubes (4) arranged in the horizontal direction inside the heat exchange chamber (1); and a partition plate (5) arranged at both ends of the heat exchange tubes (4). The heat exchange tubes (4) comprise upper-layer heat exchange tubes (41) and lower-layer heat exchange tubes (42); one end of the lower-layer heat exchange tubes (42) is provided with an air inlet (6), and the same end of the upper-layer heat exchange tubes (41) is provided with an air exhaust port (7); the other end is provided with an air transfer chamber (8). The self-cleaning air preheater further comprises an ash removal apparatus (10). The ash removal apparatus (10) comprises a first drive plate (101), a second drive plate (102), ash removal rings (103), and a power mechanism (104). The first drive plate (101) and the second drive plate (102) are each provided with a plurality of through holes (105); the heat exchange tubes (4) are slotted into the through holes (105); and the ash removal rings (103) are movably sleeved on the heat exchange tubes (4). Providing the ash removal apparatus (10) allows for a reduction of residue accumulation on the heat exchange tubes (4), further increasing the heat exchange efficiency of the air preheater.
Inventors:
WAN PENG (CN)
LAI RIDONG (CN)
TANG ZHUANQING (CN)
YANG PEIZHONG (CN)
SONG XU (CN)
WU DEFU (CN)
LAI RIDONG (CN)
TANG ZHUANQING (CN)
YANG PEIZHONG (CN)
SONG XU (CN)
WU DEFU (CN)
Application Number:
PCT/CN2021/078465
Publication Date:
September 16, 2021
Filing Date:
March 01, 2021
Export Citation:
Assignee:
GUANGDONG JUMPER THERMAL TECH CO LTD (CN)
International Classes:
F23L15/04; F28D7/16; F28G1/08
Domestic Patent References:
| WO2015052364A1 | 2015-04-16 |
Foreign References:
| CN111237801A | 2020-06-05 | |||
| CN103267302A | 2013-08-28 | |||
| CN206846778U | 2018-01-05 | |||
| CN205279117U | 2016-06-01 | |||
| CN103644573A | 2014-03-19 | |||
| CN203518717U | 2014-04-02 | |||
| CN203964688U | 2014-11-26 | |||
| CN207035205U | 2018-02-23 | |||
| CN2133769Y | 1993-05-19 |
Attorney, Agent or Firm:
GUANGZHOU YUEXIU JILY PATENT & TRADEMARK LAW OFFICE (CN)
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