Use and installation of hoisting countercurrent cooling tower

Release Time:2021-07-20


The use of hoisting type countercurrent cooling tower should pay attention to the problem.
1. regular the difference of countercurrent cooling tower.
The water density is as high as 16.5 m3/(m2 · h), while the water density of regular counter-current cooling tower is generally not more than 12 m3/(m2 · h). The larger water density not only reduces the cost of circulating water, but also makes the area occupied by the hoisting tower smaller under the same output.
The gas-water ratio is only 0.66 (the gas-water ratio of regular countercurrent cooling tower is mostly about 1.2), so the wind resistance is small. Low energy consumption.
2 should pay attention to the problem.
The distance between buildings.
"Petrochemical enterprise plant general layout design specification" on the distance between the cooling tower and other buildings have clear provisions, in the case of land tension, usually according to the small spacing arrangement. However, the hoisting countercurrent cooling tower should not be arranged at small intervals. This is because, if according to the provisions of the small spacing arrangement of the hoisting type counter-current cooling tower and its cooling tower and other buildings closer to the distance between the water vapor on the surrounding buildings.
① Pay attention to the detection of oil pollution indicators during operation.
If the oil content in the circulating water is> 10mg/L, it will cause great harm to the circulation system, so appropriate treatment measures must be taken.
Generally, the oil slick can be removed by overflow of the water collecting tank, and the water insoluble hydrocarbons should be emulsified with surfactant first, and then cleaned with 10% NaOH solution. If there is a large leakage of oil, it is difficult to clean it. Therefore, in the daily inspection, we should closely watch the changes of pollution indicators, and check the relevant parts as soon as possible to prevent unnecessary losses caused by a large amount of oil leakage.
③ Pay attention to check whether there is any foreign matter on the filter screen during system maintenance.
There are often plastic bags and other debris on the filter screen at the waterway, which should be removed at any time. It should be noted that before the filter screen is put out of the water surface, the debris at the lower part of the filter screen of the cooling tower should be stirred up with tools such as long sticks, and then gently lifted after it is attached to the filter screen, so as to prevent the debris (especially plastic products) from entering the system through the suction pool and blocking the heat exchanger or nozzle.


Installation should pay attention to what matters:
(1) Before making the concrete foundation of the tower, check whether the drawing size is consistent with the sample foundation size of the manufacturer and model of the equipment provided.
(2) When the cooling tower is installed on the roof, it is necessary to make the foundation before the construction of the waterproof layer.
(3) in the roof assembly, should pay attention to the protection of the waterproof layer has been completed.
(4) cooling tower installation should try to choose a well-ventilated and far away from the location of important buildings, and at the same time should try to choose a smaller operating noise manufacturers, generally should control the environmental noise within 55 ~ 60dB.
(5) The water pipeline in and out of the tower shall be provided with buttresses and supports.


Steel concrete structure cooling tower maintenance method introduction:
1. Cooling tower for the evaporator of the air cooler: always check the defrosting situation, whether the defrosting is timely and effective, it will affect the cooling effect and cause the liquid return of the refrigeration system.
2. Always observe the operating status of the compressor and check its exhaust temperature. When changing seasons, pay special attention to the operating status of the system, adjust the liquid supply and condensation temperature of the system in time, and pay special attention when adjusting, otherwise it is particularly prone to problems.
3. Listen carefully to the running sound of the compressor, cooling tower, water pump or condenser fan, and deal with any abnormalities in time. At the same time, check the vibration of the compressor, exhaust pipe and anchor.
4. Maintenance of the compressor: The internal cleanliness of the initial system is poor. After 30 days of operation, the frozen oil and dry filter should be replaced once, and then replaced after half a year of operation (depending on the actual situation). For the system with high cleanliness, the frozen oil and dry filter should be replaced after half a year of operation, depending on the situation.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong Province, the hometown of glass fiber reinforced plastic in China. The company has three-level qualification for construction mechanical and electrical installation engineering, three-level qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, an axial fan invention patent, a fan utility model patent, EIA, three at the same time waiting for complete procedures

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