Title:
HEAT EXCHANGE TUBE FOR WASTE HEAT BOILER
Document Type and Number:
WIPO Patent Application WO/2021/073308
Kind Code:
A1
Abstract:
A heat exchange tube for a waste heat boiler, comprising a tube body (12) and a corrosion-resistant coating (11) on the surface of the tube body (12). The chemical constituents of the corrosion-resistant coating (11) comprise: Al2O3, CaAl2O4 and Ca3(PO4)2. The mass proportions of the Al2O3, CaAl2O4 and Ca3(PO4)2 are 80-90%, 5-10% and 5-10% respectively. The thickness of the corrosion-resistant coating (11) is 1-2mm. The corrosion-resistant coating (11) can effectively prevent the corrosion of HF to the interior of the coating and the heat exchange tube.
Inventors:
MA ZENGYI (CN)
LI WENHAN (CN)
ZHANG YIKE (CN)
YAN JIANHUA (CN)
GAO RUOFENG (CN)
CHEN ZHE (CN)
CAI YAMING (CN)
ZHONG PUCHENG (CN)
LI WENHAN (CN)
ZHANG YIKE (CN)
YAN JIANHUA (CN)
GAO RUOFENG (CN)
CHEN ZHE (CN)
CAI YAMING (CN)
ZHONG PUCHENG (CN)
Application Number:
PCT/CN2020/113594
Publication Date:
April 22, 2021
Filing Date:
September 04, 2020
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
F28F1/40; B05D1/02; B05D3/02; B05D3/12; C23F15/00; F28F19/02
Foreign References:
| CN110763066A | 2020-02-07 | |||
| CN108467974A | 2018-08-31 | |||
| CN109943106A | 2019-06-28 | |||
| CN1768245A | 2006-05-03 | |||
| CN107922270A | 2018-04-17 | |||
| CN109923367A | 2019-06-21 | |||
| JPS55106540A | 1980-08-15 | |||
| US6953608B2 | 2005-10-11 |
Attorney, Agent or Firm:
HEXIN INTELLECTUAL PROPERTY FIRM (CN)
Download PDF: