Gas-liquid separator

Abstract

The invention discloses a gas-liquid separator which comprises a shell with an upper cover and a U-shaped tube arranged in the shell. An outlet communicated with an exhaust port of the U-shaped tube is formed at the top of the upper cover, and a medium inlet is formed on the lateral surface of the upper cover, wherein a barrel is arranged inside the upper cover; a medium passage is formed betweenthe outer wall of the barrel and the inner wall of the upper cover, and the center line of the medium inlet is deviated from the center line of the barrel; a bending degree of a coronary part of the U-shaped tube is relatively large, and an included angle alpha between the center lines of two straight tubes of the U-shaped tube is greater than 0 degree and smaller than 90 degrees. According to theinvention, by the design of the barrel and the medium passage, a refrigerant can rotate around the outer wall of the barrel to form a fall flow plane so as to complete primary gas-liquid separation,and then the inner wall of the shell is struck to complete secondary gas-liquid separation, thereby improving gas-liquid separation efficiency.

Description

technical field [0001] The invention belongs to the mechanical equipment industry, and more specifically relates to a gas-liquid separator for separating gas and liquid (solid) media, thereby realizing functions such as avoiding liquid shock, gas dust removal, and oil-water separation. Background technique [0002] As an important refrigeration equipment, the gas-liquid separator is arranged near the suction port of the compressor. It is mainly used to separate the gas and liquid (a small amount of impurities) in the medium at the outlet of the evaporator, so that the refrigerant sucked into the compressor is in a gaseous state and prevents the compressor from occurring. Liquid hammer phenomenon, and then cause damage to the compressor. [0003] The main functional principle of the common gas-liquid separator on the market is: after the mixed medium enters the gas-liquid separator, due to the difference in specific gravity between gas and liquid, the liquid directly falls in...

AI Technical Summary

Problems solved by technology

[0005] 1. The gas-liquid separator relies on the mixed medium to impact the inner wall of the shell, and then utilizes the difference in specific gravity between gas and liquid to realize the separation of gas and liquid; this method will cause a large loss of kinetic energy, and the greater the speed, the more obvious the pressure loss will be , the gas-liquid separation efficiency is low; in the refrigeration system, the pressure loss in the low-pressure section will cause the evaporation pressure to be forced to rise, reducing the heat transfer temperature difference, thereby reducing the heat transfer capacity, which should be avoided in the design process of the refrigeration system

[0006] 2. During the separation process of the gas-liquid separator, a large number of small-sized droplets will be sucked into the gas-liquid separator along with the gas after sputtering, which will force the compressor to install superheating between the suction and the outlet of the gas-liquid separator. device, increasing equipment cost and complexity

[0007] 3. When the standard U-shaped pipeline is used inside the gas-liquid separator, due to technological reasons, the size of the U-shaped pipe will be too large, so the volume of the gas-liquid separator is relatively large, resulting in waste of resources, while the U-shaped pipeline and shell The distance between the walls of the body is too small. When the refrigeration system is running at high frequency, the U-shaped tube will frequently collide with the inner wall of the shell, resulting in increased noise. There may also be cracks at the welded part of the U-shaped tube, resulting in air leakage.

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