What should be paid attention to when operating the closed cooling tower of Wuxi Deep Sea Heat Transfer Technology Co., Ltd.?

The closed cooling tower is a cooling device that sprays the circulating cooling water on the packing in the tower, makes it directly contact with the air, and dissipates the carried heat into the atmosphere through evaporation and convection.

The following points should be paid attention to when operating the closed cooling tower:

1. The oil level of the reducer should be checked frequently. It is recommended to use 22 ~ 28 hyperbolic gear oil or 90 ~ 120 industrial gear oil as lubricating oil, and use high viscosity oil in summer. 20 days after operation, drain the oil and replace with new oil.

2. Before running, check the fan, motor and reducer according to the corresponding product specifications. In particular, the motor wiring should be connected according to the wiring diagram provided by the motor manufacturer. Sometimes all parties express inconsistencies, which can easily lead to wiring errors. Start after meeting the requirements, starting sequence, from low speed to high speed. After the blade angle is installed according to the specified value of the sample, if the high-speed running current exceeds the rated value, it should be stopped immediately, and the closed cooling tower manufacturer should be contacted quickly.

The requirements for adjusting the angle of the fan blades are as follows: a. Mark the upper and lower edges of each fan blade at a distance of 150mm from the air duct, and obtain the difference δ H between the upper and lower points. The difference between the large value and the small value δ H of each fan blade must not be More than 2mm; b. The elevation value of the upper edge of the blade is 150mm away from the air duct, and the difference between the large and small elevation values ​​of each blade should not be greater than 0.002R (R is the radius of the fan); c. The current of the motor is equal to 0.9 ~ 0.9 of the rated value at high speed 0.95.

3. If the circulating water and make-up water of the closed cooling tower are of poor quality, measures should be taken to stabilize the water quality and a bypass filter should be set up. If necessary, steps should be taken to kill bacteria and algae.

4. FRP is a burning body, and closed cooling tower maintenance shall not use open flames. If open flames are used, corresponding comprehensive measures must be taken and approved by all fire departments, with full-time firefighters and firefighting facilities present. Wuxi Deep Sea Heat Transfer Technology Co., Ltd.