FAQ

What is a cooling tower? What are the functions of cooling towers?

Author：Trlon Views: Time:2021-12-21

　　You may have noticed that there are some large boxes on the roofs of most high-rise commercial buildings and even around industrial or power stations. These big boxes are cooling towers, used to remove heat from the building. We collected some information about what a cooling tower is, how it works, how many types there are, and what specifications each cooling tower has. In this short article, we will answer what is the purpose of a cooling tower?

　　this problem. In this article, we want to clarify the reasons for using cooling towers in commercial buildings or industrial sites.

　　1. What are the cooling towers used for?

　　First, let us look at what needs the cooling tower is designed for. Cooling towers are designed to remove unwanted heat from any heat dissipation process in buildings, facilities, or power stations or nuclear power plants. Heat removal is accomplished in two ways: the cooling tower is called an open or wet cooling tower.

　　In this type of cooling tower, heat rejection is achieved by spraying water into the tower to soak the tower to cause evaporation and eventually heat loss. Another type of cooling tower is a closed or dry cooling tower. In this type, the water of the condenser does not spray out, but stays in the sealed pipe. Unlike the wet or open type, it cannot leave the system, so it is called the closed type.

　　The heat of the warm water received from the condenser is approximately 32 to 35°C. The temperature of the water should be around 27 – 25°C so that it can return to the cooler to get more heat from the system. This is just a simplified definition of the cooling tower function. But the main question is "What's the use of a cooling tower?"

　　What is the use of a cooling tower?

　　Maybe you think that cooling towers can only be found on urban buildings, but they can be seen everywhere on the roof of any building, even next to the building, as a non-integrated unit of a huge cooling system. Basically, cooling towers are used to lower the water temperature. It is a huge heat exchanger that receives warm water from the condenser of the cooler. The cooler is usually located in a lower location, such as a basement, which takes heat away from it and discharges it to the atmosphere, and returns the colder water to cooling. To absorb more heat from the entire system.

　　More precisely, when warm water enters the cooling tower, it passes through some nozzles. These nozzles spray water into small droplets on the filling. Through this process, the increased water surface area allows for better heat dissipation through greater evaporation. But what is the fan on top of the cooling tower? The function of these fans is to bring ambient air into the tower and create an airflow in the opposite direction to the warm water of the condenser at the top of the device. The air flow transfers heat to the atmosphere through the evaporated water in the cooling tower. The heat removed from the water and discharged into the atmosphere is all the unnecessary heat in the building.

　　So, now you almost know "What is the cooling tower used for?" Part of the heat dissipation is done by the water in the cooler. But what if the water in the condenser also becomes hot? This is where the cooling tower starts to work to remove heat from the substance (condensate) that should remove heat from the refrigerant.

　　In the cooling process of the cooling tower, a large amount of water is consumed. The more water is consumed, the more money the whole process will cost. In order to reduce costs and water consumption, water eliminators are used in cooling towers. These eliminators are located on the top of the packing and nozzles under the fan. Some of the moisture pushed into the air by the water remover flows back to the packing for further cooling, and will eventually collect in the pool of the cooling tower and return to the cooler. Once it returns to the cooler, it will absorb heat and the cycle will start again.

　　What you read in this article is the answer to the question "What's the use of a cooling tower?" By reading this article and the other articles we provide you on the homepage, you can decide "Do you need a cooling tower?" If so, which one meets your needs at best. It is important to understand the purpose and purpose of cooling towers. We hope you know that if you still have some questions about this topic, you can share your questions with our experts.

　　2. Why should the cooling tower be cleaned?

　　Most of the cooling water contains calcium and magnesium ions. When the cooling water flows over the metal surface, carbonates are produced. Oxygen dissolved in the cooling water can cause metal corrosion and rust. Due to the generation of rust, the heat exchange effect of the cooling tower is reduced. In severe cases, cooling water has to be sprayed outside the shell, which will block the tube due to fouling and prevent the heat exchange effect.

　　Scale deposits will affect heat transfer, and increased deposits will increase energy costs. Very thin scale will increase the operating cost of the equipment by more than 40%. Keeping in the cooling channel can improve efficiency, extend the service life of the equipment, and save production time and costs. Cleaning methods include mechanical methods, high-pressure water, chemical cleaning, etc.

　　The relevant knowledge about what the cooling tower is used for and why the cooling tower should be cleaned is introduced here, and I hope it will be helpful to everyone. If you want to learn more about the relevant knowledge, please continue with the cooling tower manufacturer China trlon air conditioner, and we will present you with more exciting content in the follow-up.

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