Noise Suppression Device for Two-way Expansion Valve Mixed Steam Supercavitation Injection

Abstract

The invention relates to a two-way expansion valve steam-mixed supercavitation injection noise suppression device; it is a kind of refrigerant gas in the middle of the evaporator is introduced into the outlet of the expansion valve through a bypass capillary tube, so as to control the refrigerant coming out of the expansion valve and entering the evaporator. Steam mixing increases the local pressure in the steam mixing area, effectively reduces the cavitation number, significantly reduces the pressure when the cavitation bubbles collapse, forms a supercavitation phenomenon, greatly reduces the cavitation noise, and the mixed refrigerant flows into the The evaporator completes the cycle; the present invention is simpler in structure than the traditional muffler, easy to process and install, and has excellent characteristics such as low maintenance costs in the later stage; and the present invention is widely used, not only applicable to common refrigeration devices such as refrigerators, air conditioners, etc. This noise suppression device can be used in refrigeration systems in the fields of machinery, metallurgy, petroleum, chemical industry, food preservation, artificial environment, and biopharmaceuticals.

Description

Technical field [0001] The present invention is a novel design of a two-way mixed vapor expansion valve cavitation jet noise suppression device, in particular, the connecting tube is applied at the outlet of the bypass capillary tube electronic expansion valve, the refrigerant gas is introduced into the evaporator. If it is bi-directional electronic expansion valve, in different modes, changing the refrigerant flows, both ends of the electronic expansion valve as an outlet are likely to need bypass capillary tube were added at both ends of the electronic expansion valve. If the expansion valve is one-way, only need to add the bypass capillary tube at the outlet end, the mixed gas bypass pipe before the refrigerant flows back to the evaporator. Since the outlet of the electronic expansion valve will have a great noise injection, an electronic expansion valve in the mixed steam outlet, to achieve the super-cavitation effect vapor-doped, dopant vapor zone pressure can be increased to...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to solve the technical problems of the existing refrigeration system such as throttling injection noise is too large, the overall sound power is too large, etc., to design a simple and easy way to effectively reduce the expansion valve Muffling device for spraying noise, thereby improving the sound quality of the entire refrigeration system and reducing noise pollution

Images