What are the methods and precautions for the selection of side channel blower?
This is the related problem we are going to explain to you in this issue. The detailed description of this problem is in the following paragraph:
1. Before choosing high-pressure fans, we should know the production and product quality of high-pressure fans in China, such as the varieties, specifications of high-pressure fans and the special uses of various products, the development and promotion of new products, etc. We should also fully consider the requirements of environmental protection in order to select the best fans.
2. When more than two types of high-pressure fans are found to be available in the selective performance chart of high-pressure fans, the higher efficiency and smaller number of fans should be selected first: one with larger adjustment range, of course, should be compared and decided by weighing the advantages and disadvantages.
3. If the impeller diameter of the selected fan is much larger than the impeller diameter of the original high-pressure fan, in order to make use of the original motor shaft, bearings and bearings, it is necessary to calculate the starting time of the motor, the strength of the original components of the side channel blower and the critical speed of the shaft.
4. When choosing centrifugal high-pressure fan, when the power of the motor is less than or equal to 75KW, it can not install valves only for start-up. When high temperature flue gas or air is discharged and the centrifugal boiler induced draft fan is selected, the starting valve should be set up to prevent overload caused by cold operation.
5. For the ventilation system with the requirement of noise elimination, the high-pressure fan with high efficiency and low impeller circumferential velocity should be selected to work at the high efficiency point, and the corresponding measures of noise reduction and vibration reduction should be taken according to the transmission mode of noise and vibration generated by the ventilation system. Vibration reduction measures for high-pressure fan and motor can generally be based on vibration reduction, such as spring damper or rubber damper.
6. When choosing high-pressure fans, the parallel or series operation of side channel blower should be avoided as far as possible. When unavoidable, the same type of high-pressure fan with the same performance should be selected to work together. When series connection is adopted, there should be a certain pipeline connection between the first and second high-pressure fans.
7. The selected new side channel blower should consider making full use of the original equipment, making and installing suitable for the site and safe operation.
