What to do if the water temperature in the circulating water cooling tower doesn’t drop?

Is the cooling tower not powerful enough? The design capability was sufficient back then. Obviously, you’ve been deceived by the manufacturers who design these products. That’s how all manufacturers in this field behave these days; there’s no other solution but to increase the size

First, check whether there are issues with the assembly inside, such as the packing collapsing, etc.; only after that consider the possibility of design problems. Since cooling towers are such simple devices, it’s unlikely that there would be design issues in this case

Do you use natural ventilation or mechanical ventilation? If it’s the former, consider making some modifications; if it’s the latter, you can think about the solution suggested by the poster on the 3rd floor.

The main reasons why the water temperature in a circulating water cooling tower cannot be reduced are as follows: 1. The design capacity is insufficient, the calculations are inaccurate or incorrect; it is necessary to increase the size of the cooling tower. 2. The angle of the fan blades is incorrect; increase the angle appropriately. 3. The fan does not generate enough airflow; replace the fan or repair it to ensure optimal performance. 4. Insufficient circulation volume due to fouling in the heat exchanger; clean the heat exchanger. 5. If the quality of the circulating water is poor, increase the frequency of wastewater discharge, extend the duration of wastewater discharge, raise the dosage of chemicals used, and check compliance with procedural guidelines (to ensure that operators add fresh water). I hope this helps: handshake

Here, in the summer, the high temperatures prevent the water temperature from dropping. When autumn arrives and the weather cools down, things get better; in winter, it’s not necessary to open the vents fully.

Please provide the specific data for the cooling tower, including local wet and dry bulb temperatures, atmospheric pressure, design temperatures at the inlet and outlet of the tower, the area occupied by the cooling tower, fan diameter, motor power, filler height, etc. I will then analyze whether there are any issues with the design.

There could be several reasons: 1. The cooling tower is small in size. 2. The filler height is low; check the drawings for details. 3. The fan’s air volume is insufficient; the angle of the fan blades can be checked. 4. The high temperature causes the filler to soften, preventing it from performing its intended function. 5. If there are problems with the heat exchanger in the circulation system, it can be checked.

We have also encountered similar problems. Firstly, competition is fierce at present; the parameters for cooling towers specified by manufacturers refer only to the most ideal conditions. Moreover, some unscrupulous manufacturers reduce the diameter of the cooling towers, as well as the height of the packing or its specific surface area, in order to cut costs, which results in insufficient heat exchange capacity； Secondly, the tilt angle of the fan blades in the cooling tower is adjustable; by changing this angle, the cooling efficiency can be adjusted as needed. However, this method has a drawback: although the cooling effect may improve at times, the problem of water accumulation becomes more severe, and it is usually necessary to readjust the water collector ； Third, the water quality is poor; check for foaming. Foaming in the circulating water occurs when there are many impurities in the water, especially when surfactants or similar substances are present, and such foaming will affect the heat exchange and cooling capacity of the filler. Furthermore, you claim that the effects in summer and winter are basically the same, which is absolutely impossible. A cooling tower is able to provide cooling because of the differences in the humidity of the ambient air, as well as between the dry-bulb temperature and the wet-bulb temperature. Under the same heat load, the temperature of the circulating water must be lower in winter than in summer; many manufacturers even stop using fans or use them less in winter, yet still manage to keep the temperature of the circulating water at a relatively low level.

It’s not clear; it’s probably a design issue! :)

Coal washing water has a simple structure, resulting in poor heat dissipation; blocked pipe nozzles lead to uneven water distribution, which certainly affects performance； If it is mechanical ventilation, check whether there is a problem with the angle of the blades

If it runs for a long time, the coal washing water tends to become viscous, resulting in poor heat dissipation; in such cases, the method of raising it to upper floors can be employed； If the operating time is not long, it indicates a problem with the equipment selection – the equipment chosen is too small; it needs to be replaced. :lol

1. The selected model is too small. 2. The manufacturer sabotages you. 3. The water quality is too poor. 4. Severe moss growth on the packing material. 5. Moss grows on the fans, reducing airflow. 6. The tower is not placed in an appropriate location, resulting in a high proportion of closed-loop air flow. 7. The environmental conditions exceed the design specifications

It may be due to an excessive amount of fly ash, which sticks to the fillers; as a result, the water flow is slow, and heat exchange between cold air and hot water is insufficient. Additionally, the presence of fly ash in the heat exchanger contributes to an increase in temperature.

I think the main reasons are: 1. The design manufacturer deceived you; their design capabilities are insufficient, resulting in inadequate fan airflow, so the fan needs to be replaced or repaired to achieve the required performance efficiency. 2. The angle of the fan blades is incorrect; increase the angle appropriately and contact the manufacturer responsible for the design to make the necessary adjustments

To resolve everyone’s doubts, it would be helpful if the original poster could provide information such as the local wet bulb and dry bulb temperatures, atmospheric pressure, the designed inlet and outlet temperatures of the tower, the area occupied by the cooling tower, the diameter of the fans, the blade angle, the motor power, and the height of the packing. This will allow us to determine whether the issue lies in the design. Is there a problem with something else? Thank you, please upload it as soon as possible.

High-temperature cooling towers are generally used for the circulating water in gas washing, with a relatively high inlet water temperature; the required cooling temperature difference is usually greater than 15 degrees. It’s certain that the owner undersized the cooling tower capacity! When choosing a cooling tower, don’t rely solely on the flow rate and price suggested by the salesperson; instead, you must examine the performance curve of that tower based on the local climate and your process requirements – it must be capable of meeting those demands before it can be used! :@ I despise the most those who have only a superficial understanding of the subject and collude with salespeople, blaming others whenever something goes wrong!

If there is a problem with the tower itself, then technical modifications are required. If it’s due to other reasons, first increase the amount of wastewater discharged and water added to alleviate the issue, and then investigate other possible causes!

It’s best to take a look at the original design conditions and verify them.

It must be that the load is insufficient; there was an error in the calculations during design.