Why does a closed cooling tower need an expansion tank?-Wuxi Ark Fluid Technology Co., Ltd

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Why does a closed cooling tower need an expansion tank?

Release time：

2022-11-30

Generally, only the chilled water system can have it. The open system with the cooling tower still has an expansion tank, which is still needed at this time. That is to say, this system is an open cooling tower in summer, so the schematic diagram you see is actually for winter operation. What expansion tank is set? Even if the cold water of the closed cooling tower has much expansion? Open cooling tower should be able to use atmospheric constant pressure. The sump of your closed cooling tower is actually more powerful than the expansion tank. Open systems are certainly not required. But I have a project, ground source heat pump. The water of buried pipes is a closed system. Considering the heat balance in winter and summer (Jiangsu and Zhejiang regions). The ground source heat pump is equipped with a cooling tower. However, the cooling water system is a mixture of closed and open type. When the closed cooling tower is not used, there is no problem. The inlet and outlet solenoid valves can be turned off. However, when using a closed cooling tower, I was worried about what would happen to the constant pressure expansion tank in front of the water pump. To put it simply, the cooling tower is open at atmospheric pressure, but there is a constant pressure tank in front of the water pump. Is there any problem. I think the statement of "May 6" is reasonable. Closed cooling tower is unnecessary.

Generally, only the chilled water system can have it. The open system with the cooling tower still has an expansion tank, which is still needed at this time. That is to say, this system is an open cooling tower in summer, so the schematic diagram you see is actually for winter operation. What expansion tank is set? Even if the cold water of the closed cooling tower has much expansion? Open cooling tower should be able to use atmospheric constant pressure.
The sump of your closed cooling tower is actually more powerful than the expansion tank. Open systems are certainly not required. But I have a project, ground source heat pump. The water of buried pipes is a closed system. Considering the heat balance in winter and summer (Jiangsu and Zhejiang regions). The ground source heat pump is equipped with a cooling tower. However, the cooling water system is a mixture of closed and open type.
When the closed cooling tower is not used, there is no problem. The inlet and outlet solenoid valves can be turned off. However, when using a closed cooling tower, I was worried about what would happen to the constant pressure expansion tank in front of the water pump. To put it simply, the cooling tower is open at atmospheric pressure, but there is a constant pressure tank in front of the water pump. Is there any problem. I think the statement of "May 6" is reasonable. Closed cooling tower is unnecessary.

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