What is a direct heated air heater?
2) operating conditionsWhen the inlet water temperature is less than 45 degrees, direct heating and circulating heat pumps have similar operating conditions and energy efficiency.When the inlet water temperature is higher than 45 DEG C, the working conditions of the two are not identical:Direct heating type: load stable compressor, can run for a long time; the refrigerant can be fully cooled, high pressure compressor system to reduce the system pressure, overcome the consumption of electricity is relatively small, thus prolonging the service life of the compressor.Circulation type: compressor operating temperature and pressure increasing, the compressor working conditions with temperature increasing and then became bad, too high exhaust temperature of the compressor, the compressor lubricating oil heating power, facing more easier carbonation, pump efficiency, safety and service life also decreased.
Difference analysis of direct heat pump and circulating heat pump:1) structural differencesDirect heating: the use of tap water has the pressure to direct cold water into the main engine, so there is no need for pumps.The circulating water tank: hot water circulation, the rate of large water pump; in order to ensure a stable water temperature, should be added to the auxiliary water tank, water tank and a set of main and auxiliary direct link pump, complex system of electricity.
The utility model relates to a direct heated air energy water heater, which is an air energy water heater made by using a straight heating type heat pump, and the working mode of the direct heat type heat pump is that after the water is injected, the setting target temperature can be reached once the cycle is completed.The air heater is the main type of direct heating and circulating two working modes, the main difference is the use of heat pump and circulating pump; heat pump, refers to the injection water cycle once heated to the set temperature; circulating pump, refers to the heated water repeatedly repeatedly can be heated to the set temperature.
