Positive displacement central water heater
The utility model provides a positive displacement central water heater, comprising a body case, a heat exchanger, a burner, a water inlet, a water outlet, and at least one outflow pump, wherein the body case is composed of an upper part which is a water storage tank and a lower part which is an ope...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The utility model provides a positive displacement central water heater, comprising a body case, a heat exchanger, a burner, a water inlet, a water outlet, and at least one outflow pump, wherein the body case is composed of an upper part which is a water storage tank and a lower part which is an operating room. The heat exchanger and the outflow pump are fixed in the operating room. The burner is arranged on the lower part of the heat exchanger. At least one straight-way type gas flue arranged on the upper part of the heat exchanger is extended outside the body case through the water storage tank. The water inlet is communicated with the water outlet through the pipeline. Two electromagnetic valves are orderly arranged on the tube. The water inlet tube of the heat exchanger is communicated with the pipeline between the two electromagnetic valves, and the water outlet tube of the heat exchanger is communicated with the water storage tank. The water inlet of the outflow pump is communicated with the water storage tank through the pipeline, and the outlet of the outflow pump is communicated with the pipeline between the electromagnetic valve and the water outlet through the pipeline. The utility model has the advantages of low cost and easy installation and use and can be used to intensively supply hot water. |
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