Defrosting system of heat pump water heater and control method of defrosting system
A technology of a heat pump water heater and a control method, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of low defrosting efficiency, long defrosting time, inaccurate judgment, etc., and achieve high defrosting efficiency and defrosting The effect of shortening the time and speeding up the defrosting process
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[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0022] Such as figure 1 As shown, a defrosting system of a heat pump water heater in the present invention includes a compressor 1, a condenser 2, a throttling element 3, a liquid reservoir 4, an evaporator 5, and a gas-liquid separator 6 connected in sequence, and the gas-liquid separator 6 It is also connected to the compressor 1; the first electric heating tube 8 is welded in the liquid reservoir 4, and the first electric heating tube 8 and the first thermostat 9 placed in the liquid reservoir 4 are connected in series with the controller 7 connected, the gas-liquid separator 6 is welded with a second electric heating tube 10, and the second electric heating tube 10 and the second temperature controller 11 placed in the gas-liquid separator 6 are connected in series with the controller 7, so that A compressor discharge temperature...
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