发明名称 |
HEATING ELEMENT FOR WATER HEATERS WITH SCALE CONTROL |
摘要 |
An improvement in electrical elements for a water heater includes a mass attached to the element for reducing the deposition of hard water scale on element surfaces, particularly in the return bend areas. In one embodiment, a flow accelerator tube encloses the element. The flow accelerator tube has an inlet at one end and an outlet at a higher elevation at the opposite end. Water is induced to flow through the tube because of temperature change. In another embodiment, a solid mass with high surface area encloses the return bend areas to increase heat transfer at a lower temperature to reduce scaling and increase element life.
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申请公布号 |
CA2209369(C) |
申请公布日期 |
2000.04.18 |
申请号 |
CA19972209369 |
申请日期 |
1997.07.03 |
申请人 |
WATER HEATER INNOVATIONS, INC. |
发明人 |
JACKSON, BARRY N. |
分类号 |
H05B3/78;F24H1/20;F24H9/18;(IPC1-7):H05B3/78;H05B3/40 |
主分类号 |
H05B3/78 |
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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