When you truly understand the major components used in making cooling towers for chemical industry, you can easily make the unit more water efficient. In this post, you will learn the best tricks to do the same.
Cooling towers are important units used in many refrigerating systems, offering comfort or process cooling throughout the range of applications. They are the point in the system where heat is released to the environment via evaporation. Cooling towers are widely installed and used by oil refineries, chemical processing, power plants, steel mills, and other manufacturing processing units where cooling is needed.
The reason to intend a cooling tower is to provide comfort cooling for big industrial buildings including airports, conference centers, hotels, hospitals, etc. These structures vary greatly in design and sizes, but the basic function of all of them is same.
Cooling towers are used to reject heat via evaporation process. In this process, warm re-circulating water is sent to the cooling tower where a certain amount of water is evaporated into the air passing across the tower.
You can categorize cooling towers into two models – open circuit and closed circuit systems. In open circuit model, re-circulating water returns to the tower after collecting heat. This water is later distributed throughout the tower where the water directly contacts the environment. The closed circuit model is bit different.
Which factors limit concentration cycles?
Increasing concentration cycles saves water since water is re-circulated longer through the system prior being blown down. Higher amount of minerals dissolved in the water elevate with number of cycles, and along with this scaling and corrosion risk also increase. All dissolved minerals have a saturation limit that will lead to scale formation if exceeded.
What are the major concerns of cooling tower?
Since cooling towers are dynamic systems due to its operation and the environment they function inside. The structure attracts bugs and birds because of its warm and wet environment. There are some concerns of cooling tower listed below-
- Corrosion – Corrosion is an electro chemical or chemical process that results in destruction of the system metallurgy. There are different types of corrosion encountered in the cooling tower systems, including galvanic, pitting, erosion, microbiologically influenced, etc.
- Fouling – Foulants like organic matter, silt, process oils are responsible for fouling cooling tower.
- Microbe growth – Micro-organisms grow inside the cooling tower and cooling system if not disinfected.
If you want cooling towers for chemical industry, you should know about its proper maintenance and care.
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