Components of a cold room condensing unit in Kenya
Condensing unit (also called compressor unit) is the most important part of whole cold room system.
It is an assembly of compressor, condenser, fan motor, controls and a mounting plate. It has the function of a heat exchanger to cool down and condense the incoming refrigerant vapor into liquid and a fan for blowing outside air through the heat exchanger section to cool the refrigerant inside
Functions of Cold Room Condensing Unit Parts
Compressor
It plays the role of compressing and driving the refrigerant in the refrigerant circuit. The compressor extracts the refrigerant from the low-pressure area and compresses it. Then delivers to the high-pressure area for cooling and condensation.
It emits heat into the air through the air-cooling fins, meanwhile, the refrigerant also changes from gaseous to liquid state, and finally the pressure rises.
Condenser
It’s one of the main heat exchange equipment in the Refrigeration System of the cold storage, used to cool the high-temperature refrigerant vapor discharged from the compressor of the cold storage, or condense it into a high-pressure liquid.
Electromagnetic Valve
Prevent the high-pressure refrigerant liquid from entering the evaporator when the compressor is shut down. Avoid the low pressure from being too high when the compressor is running next time, meanwhile prevent the compressor from liquid strike
Expansion Valve
Also called “throttle valve”, which can make the high and low pressure of the system form a huge pressure difference, so that the high-pressure refrigerant liquid at the outlet of the expansion valve quickly expands and evaporates, absorbs the heat in the air through the tube wall, and exchanges cold and heat.
Oil Separator
Separating the lubricating oil in the high-pressure steam (discharged from the refrigeration compressor) to ensure the safe and efficient operation of the device.
According to the principle of oil separation by reducing the airflow speed and changing the airflow direction, the oil particles in the high-pressure steam are separated under the action of gravity.
Evaporator Pressure Regulating Valve
Prevent the evaporator pressure (and evaporation temperature) from falling below the specified value. Sometimes adjust the evaporator pressure to adapt the load change.
Gas-liquid Separator
To separate the refrigerant in the vapor-liquid mixed state (returned by the evaporator), thereby preventing the compressor liquid strike.
Sight Glass
To observe the flow of the refrigerant. When the refrigerant is in an appropriate amount, only liquid will flow without producing white bubbles; if the system is dry, the sight core is green, otherwise it may become yellow or other colors.
Filter Drier
Filtration of impurities and moisture in the system.
Cold Room Condensing Unit is a very important type of commercial refrigeration equipment, and it’s closely related to our lives. Whether vegetables, fruits, ice cream, seafood, or special-purpose places, such as medical cold storage, cold chain transportation, etc
Conclusion: cold room condensing unit
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