Air-cooled heat pump air conditioner
An air-cooled heat pump and air-conditioning technology, applied in subcoolers, refrigerators, refrigeration components, etc., can solve the problems of heating attenuation, heat loss compressors, and high exhaust temperature, so as to improve cooling capacity and heating capacity, prevent Frost or freezing, return air resistance avoidance effect
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no. 1 example
[0036] figure 1 The first embodiment of the air-cooled heat pump air conditioner according to the present invention is shown, which includes a compressor 1, an outdoor coil 3, a use-side heat exchanger 4, a main liquid pipeline and a supercooling device, wherein the outdoor coil 3 It is used as an evaporator in the heating operation of the air conditioner and a condenser in the cooling operation of the air conditioner; the use side heat exchanger 4 is used as an evaporator in the cooling operation of the air conditioner and a condenser in the heating operation of the air conditioner; the main liquid The pipeline connects the compressor 1, the outdoor coil 3 and the use-side heat exchanger 4 in fluid communication, and the liquid refrigerant circulates in the main liquid pipeline; the subcooling device is arranged on the main liquid pipeline and circulates in the main liquid pipeline The liquid refrigerant can achieve multiple subcooling through the subcooling device.
[0037]...
no. 2 example
[0068] image 3 It is a schematic diagram of the principle of the second embodiment of the air-cooled heat pump air conditioner according to the present invention. From image 3 It can be seen from the figure that the difference between the second embodiment of the air-cooled heat pump air conditioner according to the present invention and the first embodiment is that in the second embodiment, one of the first embodiment is replaced by three parallel throttling mechanism assemblies Electronic expansion valve 9. The main throttling mechanism of the second embodiment is composed of three throttling mechanisms connected in parallel: the first throttling mechanism is an external balance thermal expansion valve, and its external balance pipe is connected to the compressor suction pipeline (that is, at point S); The temperature sensing package is close to the point S on the suction pipeline; the second throttling mechanism is composed of a solenoid valve 30 and a capillary tube 32...
no. 3 example
[0073] Figure 4 It is a schematic diagram of the principle of the third embodiment of the air-cooled heat pump air conditioner according to the present invention. From Figure 4 It can be seen from the figure that the difference between the third embodiment and the first embodiment and the second embodiment is that in the third embodiment, the cooling and heating operations use their respective main throttling mechanisms independently, and the first throttling mechanism is omitted. The one-way valve assembly in the embodiment and the second embodiment. Such as Figure 4 As shown, when the cooling is running, the main throttling mechanism is the cooling electronic expansion valve 91, which is set between the point K2 and the point R1, and as close as possible to the point K2; when the heating is running, the main throttling mechanism is the heating electronic The expansion valve 92 is arranged between the point H1 and the point G1, and is as close to the point H1 as possibl...
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