Heat pump water heater is a new hot water and heating heat pump products, is an alternative to the boiler heating equipment and hot water installations. Compared with traditional solar energy, heat pump water heaters can not only absorb the heat in the air, but also absorb solar energy. Heat pump water heater through the refrigerant temperature difference between the endothermic and compressor compression heating, heat exchange with water, greatly improving the thermal efficiency, make full use of new energy sources, is the perfect combination of electric water heater and solar water heater advantages of the new water heater. At present, the heat pump water heater air source heat pump water heater, water source heat pump and solar three series, is to develop and use of new energy, one of the best equipment. According to different heat source, heat pump can be divided into air source heat pump, water source heat pump and ground source heat pump. Air source (solar) heat pump is one of the most advanced products in the world. The refrigerant is used as a medium, and the refrigerant absorbs the energy in the air (or sunshine) in the fan coil (or the solar panel) Compressor heating system, through the heat transfer device will pass the heat to the water to produce hot water, hot water through the water circulation system into the user radiator for heating or direct use for hot water supply. Heat pump water heater working principle diagram Heat pump hot water unit follow the law of conservation of energy and the second law of thermodynamics, the principle of heat pump, only need to consume a small part of the mechanical work (electricity), will be in low temperature environment (atmospheric or groundwater, etc.) Transferred to the water heater under high temperature environment, to high temperature hot water system. Heat pump can be compared with the pump, the water can not spontaneously flow from high to low, to the low water delivery to a height, you must use a pump that consumes part of the power to the water to the top of the tank . Similarly, according to the second law of thermodynamics, heat can not be spontaneously transferred from a low-temperature environment to a high-temperature environment. To do this, a machine must consume a portion of mechanical work (such as electric energy) The heat is transferred to a high temperature environment. Such machines are called "heat pumps." The role of the heat pump is to remove the heat in the air or low temperature water, together with the heat energy converted into electricity used by itself, to the high temperature environment to apply.
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