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Title:
GAS WATER HEATER AND SECURITY CONTROL SYSTEM AND METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/040446
Kind Code:
A1
Abstract:
A gas water heater and a security control system and method therefor. The system comprises: an exhaust blower (10), used for discharging exhaust gas generated when a gas water heater is ignited; a rotation speed detection unit (20), used for detecting the rotation speed of the exhaust blower (10); a power acquisition unit (30), used for acquiring a given output power value of the exhaust blower (10); a rotation speed difference value acquisition unit (40), used for acquiring an actual rotation speed value and a reference rotation speed value of the exhaust blower (10) according to the given output power value, and calculating a difference value therebetween; and a wind discharging control unit (50), respectively connected to the exhaust blower (10), the rotation speed detection unit (20), the rotation speed difference value acquisition unit (40) and the power acquisition unit (30), and used for correcting the rotation speed of the exhaust blower (10) according to the difference value, determining the wind pressure condition of an air outlet of the exhaust blower (10) according to the corrected rotation speed of the exhaust blower (10) and the given output power value, and thus adjusting the given output power value of the exhaust blower (10) according to the wind pressure condition of the air outlet of the exhaust blower (10). The system can ensure that a gas water heater has good ignition conditions, ensures the secure and reliable operation thereof, and improves the control precision.

Inventors:
XUE, Chengzhi (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)
DAI, Xianfeng (East Road Wanchun, Wuhu Committee of Economic-Technological Development Zone East AreaWuhu, Anhui 9, 241009, CN)
LIANG, Zefeng (East Road Wanchun, Wuhu Committee of Economic-Technological Development Zone East AreaWuhu, Anhui 9, 241009, CN)
Application Number:
CN2016/113788
Publication Date:
March 08, 2018
Filing Date:
December 30, 2016
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)
International Classes:
F24H9/20; F04D27/00
Foreign References:
CN102080878A2011-06-01
CN1752523A2006-03-29
CN101303161A2008-11-12
CN201561578U2010-08-25
CN103727676A2014-04-16
CN202813802U2013-03-20
CN102192808A2011-09-21
JPH10220741A1998-08-21
JPH09261988A1997-10-03
JPH08152131A1996-06-11
JPH08320116A1996-12-03
Other References:
See also references of EP 3309473A4
None
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (Room 301 Trade Building, Zhaolanyuan Tsinghua University, Qinghuayuan,Haidian District, Beijing 4, 100084, CN)
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