Cooling Tower Fan Blade Angle Measurement

The method is easy tools required in this videos to measure and adjust the pitch angle of the cooling tower fan blades ar.

Cooling tower fan blade angle measurement.

A t 25 t 250. Blades set at a 20 degree angle meet too much resistance which may cause the motor to burn out. Cooling tower fan blade angle measurement. No overall vibration level standards are offered by cti.

Finally it was found that the cooling tower can operate under all the given approaches 5 c 6 c 7 c and 8 c at the blade angle of 67 by maintaining the cooling range of 5 c wet bulb temperature of 26 c and water flow rate of 3 9 m3 h. Generally the pitch angle of a cooling tower turbine is very from 6 degree to 15 degree depending on the operational speed and discharge. Duty requirements are 1 1 million actual cfm 0 477 in. This paper is a brief case history of how cracked blades on a cooling tower fan were detected and a fan failure likely avoided by the use of vibration analysis.

Reduce fan blade pitch by 1 5 degrees and re measure. Considered will be a 26 ft 28ft or 30 ft diameter fan. From 0 139 to 0 510 ipspk at one measurement point used for. How to adjust it.

Let s look at a typical case of fan selection for a new tower design. If the tower has a fixed pitch fan reduce the fan speed by adjusting the sheave ratio. First of all technically it is called the pitch angle of a turbine blade. The cooling tower blades move large volumes of air quietly and efficiently.

Blade angles performance of a small cooling tower. Made of aluminum alloy the blades are freely adjustable by the pitch angle scale of the fan hub. Fans key to optimum cooling tower design cooling tower fan blade at best cooling fan blade cooling tower fan blade at best effect of wind turbine on the. Fan speed motor speed blade pass frequency.

Made of reinforced plastic material the blades are coupled to the fan hub by bolts and glue. By saum hadi posted on february 16 2020. Blades that are set at a lower angle will slice the air but not create proper air circulation. Try either a smaller motor sheave or larger fan sheave.

Frequencies present at cooling towers. B t 260 and above. What is cooling tower fan blade angle quora. The pitch angle of 50 tonne unit was around 12 degree as per my observation.

For a ceiling fan to move the correct amount of air and achieve good circulation you should set the blades at a 14 degree angle.