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Refrigeration Piping

Various materials were used for insulation purposes in the field of refrigeration. The equipment that the people most likely to call to repair or maintain. Therefore, it is necessary today repairperson get acquainted with older types of insulation, which may arise during the working day.

The success of any refrigeration equipment depends largely on the proper design of the refrigeration piping and a deep understanding of the necessary accessories and their function in the system. In the dimension lines of the refrigerant, it is necessary to consider the optimal size in relation to the Economics of friction losses, and oil return. It is desirable that the linear sizes as small as possible in terms of costs. On the other hand, the suction and discharge line pressure drops lead to lost productivity of the compressor, and the excessive liquid-line pressure drops can cause the screen liquid refrigerant followed by malfunction of the expansion valve operation.

Refrigerant system to operate successfully, must satisfy the following:

  • Proper supply of the refrigerant for evaporators, should be ensured.
  • Refrigerant lines should be of sufficient size to prevent excessive pressure drops.
  • An excessive amount of oil must be prevented from being trapped in any part of the system.
  • Liquid refrigerant should be allowed compressor at all times.

    Pressure-Drop Considerations
Pressure drop in liquid line is not as crucial as it is on the suction and discharge lines. It is important to remember that the pressure drop must not be so great as to cause gas formation in the liquid line and/or insufficient fluid pressure on the liquid-feeder device. System, as a rule, should be designed so that the pressure drop due to friction in the liquid line is not more than the corresponding 1-2 degrees change the saturation temperature. Friction pressure drops in liquid line include decreasing accessories, such as solenoid valve, filter-drier and hand valves, as well as in the actual pipe and fittings from the receiver to the wall outlet refrigerant feed device in the evaporator. 1234qwerzxcv

Friction pressure drop in the suction line means a loss in the power system, because it causes the compressor to operate on a smaller suction pressure to maintain the desired temperature boiling in the coil. This is usually standard practice the size of the suction line to have the pressure drop due to friction, not exceeding the equivalent of 1 to 2 degrees temperature change saturation...

 
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