Integrated Reliability Services Private Limited

In-Situ Dynamic Balancing

In-situ Dynamic balancing is one of the widely used expert service in industry. In-situ dynamic balancing is carried out in the site without dismantling Fan/Blower from its installation. This process minimise down time of Fan and also saves cost of transportation, time etc

IRS has experienced engineers for in-situ balancing services and carried out many critical balancing across industries Like Cement, Steel, Sugar, Paper, Power etc
Some typical applications include, but are not limited to:

Fans
Blowers
Generators
Shafts
Couplings
Belt pulley

Observation: Casing Vibration Measurements at Load condition.

VIBRATION READINGS: BEFORE BALANCING

OVERALL VIBRATION READINGS: The maximum overall vibration amplitude recorded was 5.20 mm/sec RMS in Horizontal direction at MOTOR DE bearing; 18.54 mm/sec RMS in Horizontal direction at FAN DE bearing.

The above vibration measuring Results & Spectrum conform that the fan has balancing problem.
Also, we get phase angle 90°at Fan DE bearing.
By the phase angle & Spectrum we confirm that the impeller has balancing issue & we did the balancing in single plane 2 runs method.
By side by adding trail weight of 600 grams at 0°& instruments gives the correction weight of 2100 grams at 284°.
After adding the correction weights, the vibration readings came to 2.22 mm/sec at FAN DE bearing & 1.1 mm/sec at FAN NDE bearing.

VIBRATION READINGS: AFTER BALANCING

OVERALL VIBRATION READINGS: The maximum overall vibration amplitude recorded was 1.8 mm/sec RMS in Horizontal direction at MOTOR NDE bearing; 2.22 mm/sec RMS in Horizontal direction at FAN DE bearing.

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Balancing

In-Situ Dynamic Balancing

VIBRATION READINGS: BEFORE BALANCING

VIBRATION READINGS: AFTER BALANCING

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