Title:
COLLECTIVE GAP-TYPE GAS STEAM BOILER
Document Type and Number:
WIPO Patent Application WO/2022/205695
Kind Code:
A1
Abstract:
Disclosed is a collective gap-type gas steam boiler, which comprises heat exchange tubes, an upper header, a lower header, a smoke housing, a burner, a condenser, a chimney, and a controller; a plurality of heat exchange tubes form a vertically arranged annular tube bank, a space enclosed by the annular tube bank is a boiler furnace, axial gap channels that are uniformly distributed circumferentially are collectively formed between adjacent heat exchange tubes, the width of each axial gap channel is 0.1-4 mm, the length is 50-300 mm, and the height of each axial gap channel is the same as the height of a heat exchange tube. A laminar flow strengthening effect is produced, a central high temperature region is eliminated, high temperature flue gas from the boiler furnace is lowered to 300 °C or below, boiler flue gas resistance is less than 1000 Pa, and thermal loads are evenly allocated for all heat exchange tubes, thereby preventing a local thermal load of a heat exchange tube from being excessively high and causing vigorous evaporation of water and
precipitation of a soluble salt, and consequently reducing the risk of scaling caused by a precipitated soluble salt, and steam ton steel consumption, water volume, and fan electricity consumption of the collective gap-type gas steam boiler are also reduced. A collective gap-type condenser of the present invention is suitable for a thermal oil boiler, a collective gap-type coiled pipe condenser is suitable for a coiled pipe steam generator, and a laminar flow-strengthening design is introduced to these two traditional boiler types, further extending the application of laminar flow strengthening.
Inventors:
DENG SHIFENG (CN)
ZHAO QINXIN (CN)
SHAO HUAISHUANG (CN)
WANG YUNGANG (CN)
LIANG ZHIYUAN (CN)
ZHAO QINXIN (CN)
SHAO HUAISHUANG (CN)
WANG YUNGANG (CN)
LIANG ZHIYUAN (CN)
Application Number:
PCT/CN2021/107905
Publication Date:
October 06, 2022
Filing Date:
July 22, 2021
Export Citation:
Assignee:
UNIV XI AN JIAOTONG (CN)
International Classes:
F22B1/22; F22B31/08; F22B37/10
Foreign References:
| CN113091031A | 2021-07-09 | |||
| CN112460567A | 2021-03-09 | |||
| CN202057228U | 2011-11-30 | |||
| CN104501639A | 2015-04-08 | |||
| CN202521859U | 2012-11-07 | |||
| CN111141028A | 2020-05-12 | |||
| US4751913A | 1988-06-21 | |||
| CN102635945A | 2012-08-15 |
Attorney, Agent or Firm:
WAYNE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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