What are the causes and solutions for closed cooling tower leakage?

Leakage is one of the common faults of closed cooling towers. According to our normal thinking, closed cooling towers are mostly made of stainless steel or galvanized steel plates, and the cooling water is also circulating in the closed coil, so there should be no leakage. Let's analyze in detail why closed cooling towers leak and how to deal with closed cooling tower leakage. Even if the cooling tower leaks, there is no need to panic; just find the cause and deal with it specifically.

Closed cooling tower leakage is mostly a phenomenon that will only appear after the service life is too long, and aging. If the cooling tower that has just been installed leaks during the first commissioning or shortly after commissioning, it means that the cooling tower has deviations during production, and some parts are unqualified.

So, what are the common reasons for closed cooling tower leakage? We have sorted out and summarized the reasons for closed cooling tower leakage, mainly the following points:

1. Corrosion and leakage of the water collecting tank. This is mainly due to long-term use. It may also be that the environment and water quality caused by the high pH of the local water quality have corroded the materials of the water collecting tank. The thickness of the box is uneven, and there will be damage and leakage in the thinner places. Leakage will increase water consumption, aggravate environmental pollution, and then accelerate the corrosion of other parts, a vicious cycle. If it is a FRP closed cooling tower, we can choose to clean the surface, polish it clean, degrease it with a detergent, and use epoxy repair agent plus glass fiber tape for reinforcement. If it is a material of a galvanized steel plate, consider replacing some galvanized steel plates.

2. The water basin joint of the tower body leaks. When assembling the closed cooling tower, the galvanized steel plates are rubbed with glue for compaction and sealing. Long-term operation, the impact of the spray water, the deformation of the basin, the fall of the sealant, etc., will cause leakage at the joint. Since the spray water is concentrated in the pool at the bottom, leakage requires continuous replenishment of spray water. The closed cooling tower panels are all galvanized aluminum plates, and sealants can be filled in the internal gaps of the closed cooling tower to plug leaks.

3. Water pump leakage is rare. You should contact the water pump manufacturer as soon as possible. Pump leakage will cause pressure instability and affect water circulation.

4. Pipeline leakage. When laying pipes, some flanges and elbows will be connected. When connecting, sealing rings will be added between the two joints. Most of the reasons for pipeline leakage are that the pipeline connection is not tight, the sealing ring is damaged, or the position is displaced, which will cause the seal to be loose and cause leakage.

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