Water Cooled Condenser
Many large commercial refrigeration units use water-cooled condenser. This capacitor is built in three styles:
- Shell-and-tube.
- Shell and coil.
- Pipe-in-pipe.
In the first type of refrigerant vapour goes directly from the compressor into the tank, or the shell. At the same time, the water passes through a tank, or the shell of straight pipe. The second type uses shell. However, the water passes through the shell in rolls tubing.
The third type uses two pipes and tubesone inside the other. Refrigerant passes one-way through the outer pipe. Condenser water flows in the opposite direction through the inner tube. The speed of the water should be 7-10 fps (2.13-3.04 m/sec). If the flow is too fast, the water can remove the oxide coating, causing pitting. If the water speed drops to 3 frames per second (0.3 m/s), the scaling will be.
Water cooled sometimes used compressors with water-cooled condensers. The flow of water, with some exceptions, through the condenser of the first. Then it flows through the cylinder head, and, finally, into the sewer. Water consumption is controlled by the automatic water valve.
..
|
Industrial