发明名称 |
WATER HEATER UNIT |
摘要 |
There is provided a water heater unit realizing antifreezing of a water tube and the like of a heat exchanger without providing a backwind stopper on an exhaust tube. The water heater unit comprises a heat exchanger for heating water by a combustion heat of combustion means, water temperature sensors for detecting the temperatures of the water tube connected to the heat exchanger and an air supply fan for supplying air to a combustion chamber in which the combustion means is installed. When temperatures detected by the temperature sensors reach a temperature at which freezing of the heat exchanger is expected, the air supply fan is driven to supply air to the combustion chamber and the air is exhausted toward an exhaust port, thereby effecting heat exchange and antifreezing of the water tube.
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申请公布号 |
US2003131804(A1) |
申请公布日期 |
2003.07.17 |
申请号 |
US20020214260 |
申请日期 |
2002.08.08 |
申请人 |
TAKAGI INDUSTRIAL CO., LTD |
发明人 |
IWAMA KAZUSHI;YAMASHITA AKIHITO |
分类号 |
F23N3/08;F24H1/10;F24H9/20;(IPC1-7):F24H1/12 |
主分类号 |
F23N3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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