What are the measures for freezing in cooling towers by location? 【Basic Knowledge】
Piping, valves, flow meters... An explanation of freeze prevention measures around cooling towers by location.
■Why are measures different depending on the location? The freezing prevention measures for cooling towers change depending on whether the water is moving or stagnant. Generally, water is less likely to freeze as long as it continues to circulate, while stagnant water has a higher risk of freezing. The measures can be divided into three patterns: continue circulating, drain the water, or insulate. ■What are the specific measures for each location? Insulation material is wrapped around the piping on the supply water side. For closed cooling towers, either keep the circulation pump running or drain the closed side cooling water. The backup circulation pump, which is currently stopped, should either have the water drained or be wrapped in insulation material. Insulation material is also wrapped around cast iron valves and glass flow meters. For faucets where the water flow has stopped, either leave it slightly open or wrap it in insulation material. ■What is the common approach? The commonality among the six locations is the idea of either "keeping it moving," "draining," or "insulating," which prevents the conditions for water to freeze (stagnation and low temperature). Equipment that is stopped is often overlooked, so caution is necessary. ■Summary The state of water around cooling towers varies by location, and uniform measures are insufficient. Taking measures while checking the condition of each piece of equipment is key to preventing freezing damage. Please feel free to consult us first.
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