Cooling tower, which is also known as the equivalent of cooling tower in Farsi, is a type of cooling system through which the heat and heat of water used in cooling systems is reduced and the water is cooled again. Cooling tower has different types in terms of function and construction, and its application is also very diverse. Nowadays, cooling towers are used in most industries. in such a way that it can be considered a part of the essential equipment of the industry.
Application of cooling tower
As you know, many machines and industrial devices, as a result of high activity and energy expenditure, get hot over time and emit a lot of heat. This increase in temperature is completely normal. But if it is not controlled and adjusted, it may disrupt the performance of the above machines and even damage them. As a result, in most factories and industrial centers, systems are considered to cool these types of equipment. But the problem here is that with the passage of time, the water receives the heat of the equipment and its temperature increases. As a result, it is necessary to think of measures for periodic cooling of water. This is where different types of cooling towers can be used.
This cooling system is very common and widely used; In such a way that more than 95% of production and industrial centers in all countries use it to maintain the proper functioning of their equipment. It is also interesting to know that cooling towers control the environmental damage of industrial activities as much as possible by reducing water consumption and saving in this field. It should also be noted that different types of cooling towers are also used in refineries, power plants, etc.
How the cooling tower works
The detailed examination of this matter is related to the type of cooling tower; But in general, cooling towers establish a direct or indirect connection and contact between the flow of water and the outside air by directing water in certain paths.
By doing this process, the cool air takes the excess heat from the water and causes the water temperature to reach equilibrium. Cooling towers can change the water temperature to the level of the ambient temperature and in some cases, several degrees lower or higher than it.
Of course, the way of transferring water and the way of contact with the outside air varies under the influence of the building and the type of cooling tower. But all examples of cooling towers use the general process mentioned to reduce water consumption and increase efficiency.
Why should the cooling tower be balanced?
- Pressure to shift the gears in unbalanced cooling towers where power is transmitted by the gearbox and transmission shaft.
- Stress on belt and pulley systems in unbalanced cooling towers where power is transmitted by belts and pulleys.
- Failure of the electric motor driving the axial fan in the cooling tower. Axial.
- Breakage of blades in severe imbalances.
- Vibration of the entire structure and system laxity and occurrence of other defects.
- Damage to fiberglass bodies, especially at the connection point over time.
How is the balance done?
The cooling tower has an axial fan with long blades, the type of these blades is different depending on the type of cooling tower. According to the general shape and free diagram, the cooling tower balance is placed under the low speed single plate balance. Depending on the weather and the type of fan, different balance weights are used for this equipment. The balance device must be equipped with movement sensors, which can be done using this cooling tower balance equipment if needed.
What are the differences between cooling tower balance and fan balance?
▪️ Cooling towers often have low rotation speeds, which reduces the sensitivity of the equipment to the speed of vibrations. Therefore, the difference between the cooling tower balance and the fan and other low-speed rotating equipment and the flexibility of the vibration analyzer to use speed and displacement sensors for troubleshooting and equipment balance is one of the essentials of an optimal balance. The analyzer device must have a suitable IP level because it is not clear in what season the employer orders the balance. The employer's six-month or annual repairs may be in the middle of winter under snow and rain.
▪️Sensors that are used for balance must have a suitable cable length because the safety officer of the employer may not allow you to be on the cooling tower during its installation. Although, in most cases, this issue does not involve any particular danger. Unless the person in charge of the balance uses an inappropriate test weight for the balance.
▪️ Due to the high length of the spokes and sometimes the specific type of the spokes, when balancing using the experience of the balance expert, if possible, remove the old weights for balance. In this way, the blades will not bear extra weight.
▪️ Due to the low speed of the rotating part, the balance expert should use the appropriate weighting policy for the cooling tower balance. The adoption of this policy also depends on the type and gender of the blades. If the weights are installed in a smaller diameter, heavier weights should be used, and if they are installed in a larger diameter, care should be taken to minimize damage to the blades.
Falah Centrifuge Fan Balance is active in the field of balance services for rotating equipment, axial fan, rotor, poly, cooling tower, propeller, dynamic, vibration analysis in Tehran, Alborz and Zanjan provinces.