Ammonia refrigeration gas-liquid separator

Abstract

The invention discloses a novel ammonia refrigeration gas-liquid separator. The novel ammonia refrigeration gas-liquid separator is characterized in that an evaporator pipe is penetrated into a gas-liquid separator tank body through a guiding pipe, a pipe hole is provided with an air outlet sieve cage, the outer wall of the guiding pipe is welded with blades with dip angles, a gap is arranged between the blades with the dip angles, and the blades with the dip angles are welded with a pipe-shaped outer cylinder; the gas-liquid separator tank body is internally provided with an isolating plate and a flow-blocking plate, the isolating plate is used for dividing the tank body, ammonia vapour only rises along the gap arranged among the blades with the dip angles, and the flow-blocking plate is used for blocking the ammonia vapour, and the ammonia vapour only rises in a baffling manner; the isolating plate is provided with a liquid flow pipe with a downward opening, and the upper part of the gas-liquid separator tank body is provided with an exhaust pipe removing compressor. The novel ammonia refrigeration gas-liquid separator provided by the invention has the characteristics that the liquid ammonia is subjected to retracing and separation multiple times, liquid ammonia carried in the ammonia vapour is thoroughly removed, so that the work efficiency and a working property of the compressor are improved, the electric power is saved, the service life of the compressor is prolonged, the structure is simple, and the practicability is strong.

Description

technical field [0001] The invention relates to a separator used for gas-liquid separation before ammonia vapor enters a compressor from an evaporator in an ammonia refrigeration device. Background technique [0002] Ammonia has excellent thermodynamic properties, and ammonia is generally used as a refrigerant in larger refrigeration systems. In the four-step cycle of compression, condensation, throttling, and evaporation in refrigeration, compression is one of the four-step cycles. Ammonia compressors generally consume a lot of power. They consume low-pressure saturated steam from the evaporator through power consumption and output it through compression. For superheated, high-temperature, high-pressure gas, it must be saturated ammonia vapor that enters the ammonia compressor. If the inhaled ammonia vapor carries a liquid phase, it will not only increase the power consumption of the ammonia compressor, but also damage the compressor. Therefore, it must be ensured that it e...

AI Technical Summary

Problems solved by technology

In the four-step cycle of compression, condensation, throttling, and evaporation in refrigeration, compression is one of the four-step cycles. Ammonia compressors generally consume a lot of power. They consume low-pressure saturated steam from the evaporator through power consumption and output it through compression. For superheated, high-temperature, high-pressure gas, it must be saturated ammonia vapor that enters the ammonia compressor. If the inhaled ammonia vapor carries a liquid phase, it will not only increase the power consumption of the ammonia compressor, but also damage the compressor. Therefore, it must be ensured that it enters the compressor. The saturated ammonia vapor of the machine cannot carry the liquid phase

[0003] Because liquid ammonia is incompressible or difficult to compress, if liquid ammonia enters the compressor, it will cause a "tidal car", and the compressor will have a serious cylinder knocking sound, which is particularly easy to damage the compressor. Therefore, it must be ensured that the compressor does not carry liquid. phase saturated ammonia vapor

[0004] Therefore, before the saturated ammonia vapor enters the compressor, the ammonia vapor from the evaporator passes through the gas-liquid separator to separate the liquid ammonia. However, the existing gas-liquid separator has limited separation effect and cannot completely remove the saturated ammonia vapor. The liquid ammonia carried, the treatment effect is far from meeting people's expectations

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