Precautions when the cooling tower is running

A cooling tower is a cooling device in which circulating cooling water is sprayed onto the packing in the tower so as to be in direct contact with the air, and the heat carried by the convection and convection is distributed to the atmosphere.
Its operation has the following need to pay attention to:
1, reducer should always check the oil level, lubricating oil recommended 22 ~ 28 hyperbolic gear oil or 90 ~ 120 industrial gear oil, the summer with a large viscosity of the oil. The first run after 20 days will be empty oil, new oil.
2, fan, motor, reducer before running according to the corresponding product manual inspection, especially the motor wiring, according to the wiring diagram provided by the motor factory wiring, and sometimes the parties that are inconsistent, easy to cause wiring error. Meet the requirements and then start, start the order, from low to high speed. Blade angle according to the provisions of the sample after the installation, such as high-speed running current exceeds the rated value, should immediately stop, speed and contact manufacturers. Adjust the fan blade angle to meet the requirements of the standard is: A, in the fan blades from the top of the fan 150mm at the upper and lower edge of the line to get the point and the next point of the height difference Δh value, each leaf Δh value of the maximum and minimum difference More than 2mm; B, from the windmill 150mm at the edge of the elevation value of the blade, the maximum and minimum value of each leaf elevation value should not be greater than 0.002R (R for the fan radius); C, the motor current is equal to the high-speed operation Value of 0.9 to 0.95.
3, Tianjin cooling tower packing such as circulating water, add water quality should be taken when the water quality and stability measures, set the filter, if necessary, to take sterilization measures.
4, glass fiber reinforced plastic body, so the cooling tower in the maintenance of the fire shall not be used, such as the use of fire must take the appropriate security measures, and must go through fire, security department approval, full-time firefighters, fire facilities presence.
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