Gas Heat Pump Water Heater

Abstract

The invention discloses a fuel heat pump type water heater and relates to the technology of the water heater. The water heater comprises a combustor and is characterized in that a first heat-exchange area and a second heat-exchange area are arranged outside the combustor and are provided with heat-exchange water pipes; the water outlet of the heat-exchange water pipe of the first heat-exchange area is connected with the water inlet of the heat-exchange water pipe of the second heat-exchange area; a semiconductor refrigerating unit is arranged in the first heat-exchange area, the cold end of the semiconductor refrigerating unit and the combustor form heat transfer connection, and the hot end of the semiconductor refrigerating unit and the heat-exchange water pipe form heat transfer connection; a semiconductor temperature difference power generating unit is arranged in the second heat-exchange area, the cold end of the semiconductor temperature difference power generating unit and the heat-exchange water pipe form heat transfer connection, and the hot end of the semiconductor temperature difference power generating unit and the combustor form heat transfer connection; the electric power output end of the semiconductor temperature difference power generating unit is connected to the semiconductor refrigerating unit. The efficiency of the water heater is greatly improved, the material consumption amount of a heat exchanger can be greatly reduced, the manufacturing cost and the transportation cost are reduced, meanwhile fuel is saved, and the aims of saving energy and reducing consumption are fulfilled.

Description

technical field [0001] The present invention relates to water heater technology. Background technique [0002] The heat exchange of existing gas-fired water heater generally adopts primary to secondary heat exchangers to make the heat energy of combustion heat the cold water through the method of radiation and convection of the high-temperature flue gas after combustion. The larger the heat exchange area of ​​the heat exchanger used, the lower the temperature of the exhausted flue gas, and the higher the thermal efficiency. However, the existing technology cannot reduce the exhaust gas temperature to the ambient temperature, and to reduce the exhaust gas temperature, it is necessary to increase the exchange rate. The thermal area is to increase the consumption of materials and increase the production cost. The exhaust gas temperature is higher than the ambient temperature, which means that the heat energy after combustion is not completely converted into heat energy for hea...

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Problems solved by technology

The larger the heat exchange area of ​​the heat exchanger used, the lower the temperature of the exhausted flue gas, and the higher the thermal efficiency. However, the existing technology cannot reduce the exhaust gas temperature to the ambient temperature, and to reduce the exhaust gas temperature, it is necessary to increase the exchange rate. Thermal area, that is, increasing the consumption of materials and increasing production costs

The exhaust gas temperature is higher than the ambient temperature, which means that the heat energy after combustion is not completely converted into heat energy for heating water, resulting in low thermal efficiency, and even lower if the manufacturing cost is considered

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