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The commonly used air separator in commercial refrigeration
author: supermarket refrigerated showcase category: commercial refrigeration Views: 517Time: 2016-08-22
The commonly used air separator in commercial refrigeration
(1) horizontal commercial refrigeration air separator is formed by welding four seamless steel pipes with different diameters. Its first interlayer (that is, the outermost interlayer) communicates with the third interlayer, and the second interlayer communicates with the fourth interlayer. The ammonia liquid from the ammonia reservoir enters the inner pipe after being throttled by the throttle valve, and then enters the second interlayer. The mixed gas from the accumulator and the condenser enters the first interlayer and the third interlayer. The low-temperature ammonia liquid absorbs the heat of the mixed gas through the heat transfer tube wall to evaporate, and the evaporated gas is passed through the gas return tube to the ammonia liquid separator or low-pressure circulation barrel. The mixed gas is cooled at a higher condensation pressure and a lower evaporation temperature. The ammonia vapor in it is condensed into liquid and flows to the bottom of the air separator. After being throttled by the throttle valve, it is sent to the air separator. The fourth mezzanine is for use. Non-condensable gases such as air are released into the water through a nozzle. When installing the horizontal air separator, the end of the ammonia inlet should be slightly higher, 30-50mm, so that the separated ammonia can flow into the bypass pipe. The
(2) vertical commercial refrigeration air separator is a vertical air separator that is currently used in ammonia refrigeration systems. Its shell is made of seamless steel pipes, and there are a set of cooling coils in the shells sealed at both ends, the lower end is connected with the liquid inlet pipe, and the upper end is connected with the air return pipe. The coil becomes a small evaporator due to the evaporation of ammonia. The middle side surface and the upper side surface of the shell are respectively welded with a mixed gas inlet pipe joint and a vent joint. The mixed gas enters the shell and exchanges heat with the surface of the coil. The condensed refrigerant is led out from the lower head of the shell and connected to the liquid inlet pipe after passing through the throttle valve. The separated non-condensable gas is put into the bucket with water from the upper air vent. The top of the shell is provided with a thermometer sleeve. The outside of the entire air separator is insulated with heat insulating materials. Compared with horizontal air separators, vertical commercial refrigeration air separators have the advantage of simple operation and can realize automatic operation after installing automatic control components.
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