Capillary steam-doped super-cavitation jet noise suppression device

Abstract

The invention relates to a capillary steam-doped super-cavitation jet noise suppression device. According to the device, refrigerant gas in the middle of an evaporator is introduced into an outlet ofa capillary tube through a bypass capillary tube, so that steam doping is performed on a refrigerant which comes out of the capillary tube and enters the evaporator, the local pressure of a steam doping area is increased, the cavitation number is effectively reduced, the pressure during cavitation collapse is remarkably reduced, the super-cavitation phenomenon is formed, and cavitation erosion andcavitation noise is greatly reduced; and the mixed refrigerant flows into the evaporator to complete circulation. Compared with a traditional silencer, the noise suppression device has the advantagesof being simple in structure, convenient to machine and install, low in later maintenance cost and the like; and the noise suppression device is very wide in application, not only is suitable for common refrigeration devices such as refrigerators and air conditioners, but also can be adopted for refrigeration systems in the fields of machinery, metallurgy, petroleum, chemical industry, food preservation, artificial environment, biological pharmacy and the like.

Description

Technical field [0001] The present invention relates to a new type of injection noise reduction and suppression device, specifically, a refrigerant gas in the middle of an evaporator is introduced into the outlet of the capillary through a bypass capillary tube, thereby mixing the refrigerant out of the capillary tube into the evaporator , Increase the local pressure of the steam mixing zone, effectively reduce the number of cavitation, significantly reduce the pressure when the cavitation collapses, form a supercavitation phenomenon, and greatly reduce the cavitation noise. The mixed refrigerant flows into the evaporator to complete the cycle. Background technique [0002] The noise research of the refrigeration system shows that, in addition to the mechanical noise and electromagnetic noise of the compressor itself, the flow noise of the system itself directly affects the noise level of the refrigeration system and the sound quality parameters of the refrigeration system, and t...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to design a simple and effective cooling system that does not affect its cooling effect and aims at the technical problems of excessive fluctuation of flow noise and large overall sound power in the circulation device of the existing small-scale refrigeration system. A muffler that reduces jet noise at the outlet of the throttling device, thereby improving the sound quality of the entire refrigeration system and reducing noise pollution

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