Catalytic startup method for the main fan
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This post was last edited by Refiner on 2017-12-17 08:24. When starting up the catalytic unit, is the main fan driven by a motor or by an exhaust fan? Thank you!
This depends on the power of the main motor; if the power is sufficient, the motor can be started directly. If the power is insufficient, the backup fan must be turned on first. Once normal production is underway, the system can be switched to the main motor. Initially, the main motor is driven by the exhaust fan, and once its speed reaches the required level, the motor is connected to the power supply. After the main motor is operating properly, the backup motor is switched to take over.
1. In the catalytic units designed in the early days, there were backup units; during operation, the backup unit was started first, and once everything was functioning normally, the main unit would be switched in. To switch to the main unit, the exhaust fan was turned on first, and after its speed reached normal levels, the motor was connected. 2. Nowadays, many of these units are single-unit systems with only one main fan. The motor is started during operation, and the exhaust fan is turned on only after the unit is functioning properly (such motors come equipped with soft starters)
We use the smoke extractor to drive it, and then start the motor.
We use the smoke extractor to drive it, and then start the motor.
If there is a backup unit, start it first; once the backup unit is functioning properly, the device can operate normally – the smoke exhaust system’s pipes are warmed up and the speed is increased, after which the main fan is turned on. Finally, the backup unit is switched over to serve as the main unit. If only one main unit is in operation with the smoke extractor running, it’s better to turn on the main unit first and then the smoke extractor
It mainly depends on whether your upstream power grid can handle it, as the current during startup is very high. The catalytic system we have newly planned also comes with a backup fan
First, start the standby machine to drive the smoke extractor; once the speed of the smoke extractor reaches that of the main unit, then start the motor of the main unit
Haven’t you put your system into operation yet? Many systems these days are stand-alone; have you set up a backup unit for your smoke extraction system?