Compared with open cooling towers, closed cooling towers have a greater impact on water. Due to the closed design of the closed cooling tower, the closed cooling tower is divided into inner circulating water and outer ring water. The infiltration of the closed cooling tower and water will only affect the spray of the outer cooling coil, and the water quality is relatively easy to lose. The integrated circulating water of the open cooling tower will enter the cooling cycle process after entering the water, which will seriously affect the water quality of the cooling tower, cause the water quality to acidify, and cause acidic corrosion in a high temperature environment, and the corrosion rate is very fast.
When the closed cooling tower is out of service, pay attention to the protection of the cooling tower and winter protection measures, especially in the northern areas, where the temperature is relatively low. If the cooling water of the spray water is not drained, it will cause severe freezing damage and even become unusable.
When draining water, first stop the machine and cut off the power supply. If there is an electric heating device in the cooling tower, cut off the power supply. When draining water, the pH value of the water should be tested first. If the water quality is not good, it will affect the environment. The discharged water should be treated. If the conditions are good, it can be treated with water treatment equipment, and then discharged while being treated. If conditions do not permit, we can drain the water into a catch basin, add chemicals to neutralize the water quality, and then discharge it.
The pool design of the open cooling tower is at the bottom, which is an open design. The water surface of the pool is directly exposed to the environment. When used, it will not only cause the water flow rate to be too high, but also add a lot of impurities, increase the corrosion rate of the open cooling tower, and shorten its service life. At first, the cooling tower was mainly made of FRP, with a service life of 4-5 years. The internal environment of the cooling tower is high temperature and heat, and the corrosion of the cooling tower body is relatively large.
Compared with the closed cooling tower, the water consumption of the open cooling tower can be several times different. Compared with the service life, it is relatively short. At first, the cooling tower relied on fillers to dissipate heat, instead of internally circulating cooling coils, it relied on cooling water circulation. The scale is very fast. One is that there are more magazines in the water, and the other is that the temperature is high and there are more dry spots. There is a lot of water in southern my country, and a large amount of water enters the cooling tower water cycle, which will seriously affect the water quality. After mixing with water and air, there are relatively more sulfide impurities in the water. When entering an open cooling tower, the circulation will affect the entire circulation pipeline. In addition, there will be a large amount of suspended sludge in the water, which will precipitate and accumulate during shutdown or slow operation, resulting in poor circulation management of the cooling tower, which will affect the circulation of cooling water and thus affect the cooling efficiency.
Closed cooling towers can avoid this situation well and are used in areas where rainwater is concentrated. If the deep water volume is relatively large, we can empty the water in the pool so that it is relatively small and will not affect the internal circulating water system in the cooling coil. Easier to clean.
Guangdong Trlon Energy-saving Air Conditioning Equipment Co., Ltd.
Company Address： 1916A, Block A, David Donglong Business Building, Longhua, Longhua District, Shenzhen