Throttling short pipe and air conditioner

Abstract

The invention discloses a throttling short pipe and an air conditioner, and relates to the technical field of air conditioners. The throttling short pipe and the air conditioner are used for reducinga liquid flow noise of the throttling short pipe in the throttling process. The throttling short pipe is used for an air conditioning refrigeration system, and comprises a pipe body in which a refrigerant flows; a refrigerating valve body and a heating valve body are fixed in the pipe body, wherein the refrigerating valve body is used for throttling the refrigerant when the air conditioner carriesout refrigeration, and the heating valve body is used for throttling the refrigerant when the air conditioner carries out heating; and noise reduction cavities are formed in the pipe body, wherein the inner diameters of the noise reduction cavities are larger than the inner diameter of the pipe body, and the noise reduction cavities are located at an outlet of the refrigerating valve body when the refrigerating valve body is used for throttling the refrigerant, and / or located at an outlet of the heating valve body when the heating valve body is used for throttling the refrigerant. The throttling short pipe and the air conditioner are used for throttling the refrigerant of the refrigeration system.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a short throttle tube and an air conditioner. Background technique [0002] Nowadays, refrigeration equipment such as air conditioners are widely used because they can store items at low temperature. In the refrigeration system of these refrigeration equipment, the throttling component is a very important part of the system, and there are generally three kinds of throttling components, namely capillary tube, short throttle tube and electronic expansion valve. Among them, due to the simple structure of the short throttle tube, the production efficiency of the air conditioner is obviously improved. In air conditioners, most of them use short throttle tubes to throttle the flow to improve the production efficiency of the whole machine. [0003] The prior art provides a short throttle pipe, such as figure 1 As shown, including the pipe body 01, the pipe body 01 is provide...

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Problems solved by technology

[0006] However, refer to figure 1 and Figure 4 , the inner diameter of the pipe body 01 of the short throttle tube in the prior art is basically the same before and after throttling, especially in the process of throttling the short throttle tube in the air-conditioning refrigeration mode, the refrigerant is a mixture of high temperature and high pressure gas-liquid The body is throttled into a low-temperature and low-pressure gas-liquid mixture and enters the evaporator. Due to the rapid change of refrigerant temperature, pressure, and flow rate during the throttling process, throttling noise will be generated after throttling, which will be transmitted to the inside of the air-conditioning room, and then indoors. Clear flow noise can be heard on the side

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