1.Principle

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Counter flow cooling tower-The air is vertically upwards, counter current with the hot water falling downwards.The coldest water comes in contact with the coolest and most dry air,optimizing the heat transfer and obtaining the maximum performance.

Cross flow cooling tower-The air flows horizontally and the water falling downwards meets the air at different temperatures. Therefore the heat transfer is not always optimized.

2.Area

Counter flow cooling tower-The tower area required is comparatively much smaller. The air water contact is more due to the efficiency and arrangement of the fill pack. The plenum chamber area for hot air in this tower is smaller.

Cross flow cooling tower-The area required is larger due to its constructional features like larger plenum chamber. Also the arrangement and material of the pack is different and requires a higher area. 

3.Air Flow

Counter flow cooling tower-Since the air-water contact time is higher, the quantity of air required is lesser.

Cross flow cooling tower-Since the air-water contact time is lesser, more air is required to effect heat transfer.

4.Distribution System 

Counter flow cooling tower-The distribution is done through channel with lateral pipes, fitted with splash cum spray nozzles. Growth of algae is highly restricted as the lateral pipes are a closed unit and not located in direct sunlight.

Cross flow cooling tower-The distribution is done through open trough systems on the fan deck, fitted with nozzles. Distribution may not be as uniform as the counter flow type and is easily attacked by algae, causing problems like scaling and clogging of openings.

5.Recirculation

Counter flow cooling tower-The problem of recirculation is much less in this case as the air intake is at the bottom of the tower and the discharge is at a much higher level. Further the side walls of the tower are closed till the top of the air intake area. 

Cross flow cooling tower-Since the air intake area extends from the bottom to the deck level, the flume discharge is very close to the air intake area at the top. This creates the effect of recirculation wherein the discharged air re-enters the tower through the air intake at the top. This creates a significant reduction in performance. 

6.Fill Pack 

Counter flow cooling tower-The fill pack can be splash type plastic fill for very bad quality of water and film fill for better quality of water.

Cross flow cooling tower-Only splash type fill used in cross flow cooling towers. Usually splash fill will be V bar or timber laths. 

7.Power Consumption&Pumping Head

Counter flow cooling tower-The fan Power consumption is low as the required air quantities comparatively lower. The pumping head is also lower as the inlet header is located below the fan deck area. 

Cross flow cooling tower-The fan power consumption is higher as the airflow required is higher. The pumping head is also higher since the distribution is located at the fan deck level. 

8.Maintenance

Counter flow cooling tower-Maintenance for counter flow towers is much easier than cross flow towers. The simplicity of structure and comfortable sizing allow for quick and exhaustive maintenance.

Cross flow cooling tower-Maintenance for cross flow towers is time consuming and usually requires more skilled technicians on the job as the movement of material is more difficult.

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What are the differences and characteristics of cross-flow and counter-flow cooling towers

　　Cross-flow cooling towers and counter-flow cooling towers are basically a type of closed cooling towers, so why is it necessary to distinguish between cross-flow and counter-flow in the case of model selection? The larger root cause is the heat removal efficiency of the two The difference phenomenon. We have to figure out: Under normal circumstances, when the heat rejection temperature difference is relatively large, or the heat rejection environment temperature is relatively high, the cross-flow cooling tower is basically selected; the heat rejection environment temperature is relatively low Or when the temperature difference is relatively small, it is recommended to use a counter-flow cooling tower.Us7Cooling tower noise reduction treatment manufacturer

　　Why do we need to distinguish between these two? Firstly, because the two structural designs are different, the cross-flow type is basically one-side suction, and the cooling tower filler is added at the bottom of the cooler, so that the overall air inlet speed and The high efficiency of heat transfer is extremely fast. If it is a counter-flow cooling tower, then we are all sucking air around the bottom end, and the wind speed is immediately dissipated from the top according to the cooler. The structure design at the bottom end of the cooler lacks filler, so the heat dissipation and wind speed will be higher than that of cross flow. The cooling tower is slightly weaker.Us7Cooling tower noise reduction treatment manufacturer

　　The total area of ​​the control system, according to the design of the cooling tower, only needs to be the same amount of heat, so that the cross flow and counter flow are basically reachable. It's just that the volume control is different. With the same heat rejection effect, the cross-flow cooling tower may occupy less total area than the counter-flow cooling tower. But if it is to be said, the counter-flow type cannot achieve the cross-flow type of heat removal effect. As a result, it is undoubtedly possible. As long as you increase a large number of heat extraction coils, the heat dissipation can still achieve the same effect. However, the total land area will definitely be large, and it is relatively difficult to control whether it is useful or not.Us7Cooling tower noise reduction treatment manufacturer

　　Cross flow cooling tower advantages:

　　1. Simple structural features, convenient and quick loading and unloadingUs7Cooling tower noise reduction treatment manufacturer

　　2, low nozzle pressure (energy saving)Us7Cooling tower noise reduction treatment manufacturer

　　3, maintenance is convenient and quick, equipment failure rate is low, easy to maintain (there is no rotating water distribution system inside).Us7Cooling tower noise reduction treatment manufacturer

　　4. The heat exhaust fins are not easy to scale and grow algae, and the heat exhaust fins are easy to clean.Us7Cooling tower noise reduction treatment manufacturer

　　5. When the outside air environment is higher than the structural design environment, other emergency cooling measures can be adopted (the tap water is sprayed immediately, the cooling fan is increased, etc.).Us7Cooling tower noise reduction treatment manufacturer

　　6. ​​It adopts low cost, wide range of dosing, and the installation is not easy to cause corrosion, and the pressure of the nozzle required by the motor can be reduced.Us7Cooling tower noise reduction treatment manufacturer

　　Disadvantages of cross-flow cooling tower:

　　1. The high efficiency is relatively low and the counterflow type is relatively low. The same refrigeration capacity must have a large box and a total area.Us7Cooling tower noise reduction treatment manufacturer

　　2. Slightly more water demand.Us7Cooling tower noise reduction treatment manufacturer

　　Application of counterflow cooling towerUs7Cooling tower noise reduction treatment manufacturer

Us7Cooling tower noise reduction treatment manufacturer

　　Counter-flow cooling tower advantages:

　　1. It occupies a small total area, and has a high efficiency of the same volume. It is slightly higher than the cross-flow type (water is more evenly distributed on the heat extraction fins according to mechanical movement to enhance the unit heat extraction rate of the heat extraction fins).Us7Cooling tower noise reduction treatment manufacturer

　　2. It can cause a larger water temperature difference than the cross-flow type.Us7Cooling tower noise reduction treatment manufacturer

　　Disadvantages of counterflow cooling tower:

　　1. The inside structure is complex, and the rotating water distributor inside is very prone to problems, and after-sales maintenance is inconvenient after problems occur. 2. It is very easy to cause algae and sludge, and it is very easy to cause blockage of the water distributor, and it must be higher for sterilization and algae removal. 3. It must be higher for dosing. In addition to the metal pipe, the rotating structure is also metal. 4. The nozzle pressure must be high, and the water pump must be high. 5. High efficiency is fast, and the loss of cooling capacity in the later period is high and efficient.Us7Cooling tower noise reduction treatment manufacturer

　　Another: the counter-flow type is mostly suitable for round cooling towers, and the cross-flow type is mostly suitable for square cooling towers!Us7Cooling tower noise reduction treatment manufacturer

　　The two types of cooling towers don’t care about the pros and cons, just take full consideration of the actual situation. If you have any questions about cooling towers, please call us.Us7Cooling tower noise reduction treatment manufacturer

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