Throttling device for air conditioner refrigerating system

Abstract

The invention discloses a throttling device for an air conditioner refrigerating system, which mainly comprises a valve body, a valve seat, a large valve plug and a small valve plug, wherein the large valve plug, the valve seat and the valve body form a one-way throttling valve jointly, and the small valve plug and the large valve plug form a one-way throttling valve. The axial line of the large valve plug is provided with a step hole consisting of a large hole and a small hole, and the small valve plug is arranged in the large hole of the large valve plug. The two one-way throttling valves are combined ingeniously together to form a two-way throttling device to be used for the air conditioner refrigerating system, thus the throttling device can replace a main capillary tube and an auxiliary capillary tube, and can reduce the refrigerating energy consumption of an air conditioner and increase heating quantity.

Description

technical field [0001] The invention relates to a throttling device for an air-conditioning and refrigeration system, which is used for throttling and reducing pressure during the flow of refrigerant. Background technique [0002] The heat pump type split air conditioning refrigeration system is mainly composed of a compressor, an outdoor heat exchanger, a dry filter, a main capillary, an auxiliary capillary, an indoor heat exchanger, an electromagnetic four-way valve, a gas-liquid separator, etc. Agent) in this closed system cycle and state changes to realize the cooling or heating of the indoor environment by the air conditioner. [0003] The gas refrigerant is compressed into high-temperature and high-pressure steam by the compressor, and then sent to the heat exchanger (condenser) of the outdoor unit after being selectively guided by the electromagnetic four-way valve. is hot air). Then if figure 1 As shown, the liquid refrigerant enters the main capillary 1 through t...

AI Technical Summary

Problems solved by technology

[0006] In addition, when the air conditioner is heating, because the size of the capillary is fixed, the pressure of the air conditioner refrigeration system can only change passively with the change of the outdoor ambient temperature, and cannot make adaptive adjustments.

As a result, when the outdoor temperature is high, the pressure of the air conditioning and refrigeration system is high, and the energy consumption is high; when the outdoor temperature is low, the pressure of the air conditioning and refrigeration system is low, and the heating effect is poor.

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