Keltech KRAD M Series, Инструкция по эксплуатации, Страница: 7 / 62

Page 7
B)
The condensates are collected after centrifugal separation and drained out through the automatic trap.
C)
As long as the compressed air temperature does not drop below dew point, there will be no
condensation in the air circuit.
5) Refrigerant compressor
Increases the pressure and temperature of refrigerant. There are two type of compressors commonly used
according to refrigerant capacity on this application:
- Piston type
- Scroll type
6) Condenser
Dissipates the heat provided by evaporator and compressor.
There are two type of condensers used on the application:
1) Air Cooled Type (standard)
These condensers are designed to dissipate the heat to the ambient air.
The fans are used to force the air flow through the fins to enhance the heat transfer.
2) Water Cooled Type (optional)
These condensers are designed to dissipate the heat to a water flow.
A shell and tube heat exchanger is used for this purpose.
2.1. Points to Condenser in the Protection of Water Cooled Condenser
• The most common problem is the clogging problem. Undesirable/unexpected change in the amount of incoming
water will affect the dryer performance.
• Clogging is caused by calcification, solid particles, microorganisms.
• Calcareous substances in the cooling water should not be tried to be removed with a water softener.
• Filtration technique with the help of semi-permeable membrane can be used for lime cleaning.
• After the analysis of the solid particles, the solids can be filtered with the appropriate filtration equipment.
(100µm strainer filter can be used.)
Compressed Wet Air Inlet
Compressed Dry Air Outlet
A
B
C D
E
F
Refrigerant Gas High Pressure Line
Refrigerant Gas Low Pressure Line
Refrigerant Compressor - A
Condenser - B
Filter dryer - C
Expansion Valve - D
Heat Exchanger -
E
Hot Gas Bypass Valve - F
Drain - G
G
Compressed Air Dryer Working Principle