Cross flow
advantage:
1. Simple structure, convenient loading and unloading
2, low head pressure (energy saving)
3. Convenient maintenance, low failure rate and easy maintenance (no rotary water distribution device inside).
4, the heat sink fins are not easy to scale algae, the heat sink fins are easy to clean.
5. When the external gas environment is higher than the design environment, other emergency cooling measures can be taken (direct spray of tap water, increase the dispersion)
Hot fan, etc.).
6, the use of low cost, wide range of dosing, equipment is not easy to produce corrosion, the head pressure required by the motor can be reduced.
Disadvantages:
1. The efficiency is relatively low relative to the counterflow, and the same refrigeration cold tonnage requires a larger cabinet and floor space.
2. The water consumption is slightly more.
Countercurrent
advantage:
1. The floor space is small, and the same volumetric efficiency is slightly higher than that of the cross flow type (the water is more evenly dispersed by the mechanical movement in the heat dissipation fin
On-chip improves the unit heat dissipation efficiency of the heat sink fins).
2. It can produce a larger water temperature difference than the cross flow type.
Disadvantages:
1. The internal mechanism is complicated, the internal rotating water distributor is prone to failure, and the maintenance is inconvenient after the failure.
2. It is easier to produce algae and silt, which is easy to cause blockage of the water distributor and higher requirements for sterilization and algae removal.
3. The requirements for dosing are high. The internal rotation mechanism except the pipeline is metal.
4. The water head pressure requirement is high and the pump configuration requirements are high.
5. The efficiency decays quickly, and the subsequent cooling rate decays faster.
Another: Counterflow cooling towers are mostly used for circular cooling towers, and cross-flow cooling towers are mostly used for square cooling towers!
There are no advantages or disadvantages to the two cooling towers, which can be considered according to the actual situation. According to the experience of the factory, the cross flow type is more stable than the counter flow type, the failure rate is lower, and the cost of use and the cost of maintenance of the human equipment are also low.