On-line fast balance correcting method of COG (coke oven gas) pressurizing fan
A technology of balance correction and pressurized fan, which is applied in the direction of static/dynamic balance test, machine/structural component test, measuring device, etc. It can solve problems such as incorrect calculation results and unusable single-plane balance
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[0019] The COG gas pressurized fan online rapid balance correction method of the present invention comprises the following steps:
[0020] Step one, such as figure 2 As shown, set the speed trigger cursor 7 on the fan shaft 2, use the laser tachometer to detect the fan speed through the speed trigger cursor 7, and use the waveform analyzer to measure the power frequency vibration amplitude and vibration amplitude of the bearing housings 6 at both ends of the two shafts. Select the effective value of the vibration velocity;
[0021] Step 2. The fan is filled with gas and started to run. Measure the vibration amplitude and phase of the bearing seats 6 at both ends of the two rotating shafts 2. Gradually open the damper and add load. Record the fan when the damper opening is 15%, 20% and 30%. Operating conditions, the operating time of each working condition is not less than 20 minutes, record the power frequency vibration amplitude and phase of each bearing seat 6 after 20 min...
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