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Title:
FLAME SPREADER AS WELL AS BURNER AND WATER HEATER USING SAME
Document Type and Number:
WIPO Patent Application WO/2019/140861
Kind Code:
A1
Abstract:
A flame spreader as well as a burner and a water heater using same. The flame spreader (500) comprises: at least three ejector tubes (510), each ejector tube (510) having a flow guide inclined surface (511A), and the flow guide inclined surface (511A) being formed by inclining an end surface of a gas outlet section (511) of the ejector tube (510) to two sides; a gas mixing chamber (12) separately communicated with each ejector tube (510); flow dividers (112) disposed at the gas outlet sections (511) of the ejector tubes (510) and recessed into the interior of the gas mixing chamber (12) so that gas is divided to two sides; and first through holes (14) disposed beside the ejector tubes (510), allowing a cold water tube (20) to pass through, and in close contact with the cold water tube (20). The structure of the flame spreader (500) can increase an ejection coefficient to achieve better complete gas burning and reduce the generation of nitrogen oxides.

Inventors:
CHEN, Wenfeng (East Road Wanchun, Wuhu Committee of Economic-Technological Development Zone East AreaWuhu, Anhui 9, 241009, CN)
MENG, Xianchao (East Road Wanchun, Wuhu Committee of Economic-Technological Development Zone East AreaWuhu, Anhui 9, 241009, CN)
LIANG, Guorong (East Road Wanchun, Wuhu Committee of Economic-Technological Development Zone East AreaWuhu, Anhui 9, 241009, CN)
Application Number:
CN2018/091100
Publication Date:
July 25, 2019
Filing Date:
June 13, 2018
Export Citation:
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Assignee:
WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. CO., LTD. (East Road Wanchun, Wuhu Committee of Economic-Technological Development Zone East AreaWuhu, Anhui 9, 241009, CN)
MIDEA GROUP CO., LTD. (B26-28F, Midea Headquarter Building No.6 Midea Avenue, Beijiao, Shund, Foshan Guangdong 1, 528311, CN)
International Classes:
F23D14/04
Foreign References:
CN106642109A2017-05-10
CN204227677U2015-03-25
CN206739297U2017-12-12
CN206582843U2017-10-24
CN202253640U2012-05-30
US20120225393A12012-09-06
CN201810039045A2018-01-16
CN201810461364A2018-05-15
Attorney, Agent or Firm:
CHANG TSI & PARTNERS (6-8th Floor, Tower A Hundred Island Park,Bei Zhan Bei Jie Street, Xicheng District, Beijing 4, 100044, CN)
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