Three-pressure efficient air cooled heat pump water heater suitable for high and low temperature environment
An air-cooled heat pump and water heater technology, applied in the field of air-conditioning heat pumps, can solve the problems of decreased heating capacity and energy efficiency ratio, high compression ratio of compressors, high exhaust temperature, etc., to achieve ingenious optimization of unit design, reduce throttling loss, and improve system efficiency. Effect of Thermal Coefficient
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Embodiment 1
[0027] Such as figure 1 As shown, the present invention provides a three-pressure high-efficiency air-cooled heat pump water heater suitable for high and low temperature environments. The water heater includes a main circuit compressor 1, a main circuit oil separator 2, a main circuit check valve 3, and a water-cooled condenser 4. Subcooler 5, dry filter 6, observation mirror 7, first expansion valve 8, medium pressure gas-liquid separator 9, second expansion valve 10, air-cooled evaporator 11, outdoor fan 12, low-pressure gas-liquid separation Device 13, evaporation pressure regulator 14, auxiliary circuit compressor 15, auxiliary circuit oil separator 16, auxiliary circuit check valve 17, circulating water pump 18 and connecting pipes. The specific connection relationship is as follows: the exhaust port of the main road compressor 1 passes through the main road oil separator 2 and the main road check valve 3 respectively to the inlet of the water-cooled condenser 4 and the o...
Embodiment 2
[0030] The main circuit compressor 1 and the auxiliary circuit compressor 15 described in the present invention are fixed-frequency rolling rotor compressors. The water-cooled condenser 4 is a sleeve condenser. The air-cooled evaporator 11 is a laminated heat exchanger. The outdoor fan 12 is a fixed frequency fan. The first expansion valve 8 and the second expansion valve 10 are choke expansion valves. The evaporating pressure regulator 14 is a proportional-integral regulator. The subcooler 5 is a casing heat exchanger. Other structures are the same as in Embodiment 1.
Embodiment 3
[0032] The main circuit compressor 1 and the auxiliary circuit compressor 15 described in the present invention are variable frequency scroll compressors. The water-cooled condenser 4 is a plate condenser. The air-cooled evaporator 11 is a parallel flow heat exchanger. The outdoor fan 12 is an adjustable fan. The first expansion valve 8 and the second expansion valve 10 are float type expansion valves. The evaporating pressure regulator 14 is a proportional differential regulator. The recooler 5 is a flasher. Other structures are the same as in Embodiment 1.
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