Circular blower, also known as high-pressure fan, is a universal air source mechanical device that can blow or suck air. It has high mechanical precision and the operating parts undergo extremely precise balance design, testing, and calibration of component strength and critical shaft speed. It is widely used in the fields of industry and agriculture, covering infrastructure construction, environmental protection industry, automobile industry, electroplating industry, aquaculture industry, industrial dust collection, packaging machinery industry, printing machinery industry, plastic industry, chemical industry, food, pharmaceutical, medical, electrical and electronic, light industry and textile, shipbuilding and railway, aerospace engineering.

Machine selection matters:

1. Before selecting the blower. The variety, specifications, and special uses of various ventilation fans produced, as well as the research and promotion of new products in the market, should also fully consider environmental requirements in order to select the best fan. Choose ventilation fans for different purposes. Explosion proof ventilation fans should be selected for transporting explosives and gases; Dust or coal powder ventilation fans should be selected for dust removal or coal powder transportation; For the transportation of corrosive gases, anti-corrosion ventilation fans should be selected; High temperature ventilation fans should be selected for working or transporting high-temperature gases in high-temperature environments.

2. According to the different physical and chemical properties of the gas transported by the ventilation fan. Priority should be given to selecting the one with higher efficiency, smaller machine number, and larger adjustment range.

3. When there are two or more types of ventilation fans available for selection on the performance chart. Of course, comparisons should also be made to weigh the pros and cons before making a decision. In order to utilize the existing motor shaft, bearings, and supports.

4. If the selected fan impeller diameter is much larger than the original fan impeller diameter. It is necessary to calculate the starting time of the electric motor, the strength of the original components of the fan, and the critical speed of the shaft. When the motor power used is less than or equal to 75KW.

5. When choosing a centrifugal fan. Do not install valves solely for startup purposes. When using a centrifugal boiler induced draft fan to discharge high-temperature flue gas or air, a starting valve should be installed to prevent overload during cold operation. The first priority should be to choose a ventilation fan with high efficiency and low impeller circumferential velocity.

6. Ventilation systems with noise reduction requirements. And make it work at the highest rate point; Corresponding noise reduction and vibration reduction measures should also be taken based on the propagation mode of noise and vibration generated by the ventilation system. The vibration reduction measures for ventilation fans and electric motors can generally be based on vibration reduction foundations, such as spring dampers or rubber dampers. Ventilation fans should be avoided from working in parallel or series as much as possible. When unavoidable.

7. When choosing a ventilation fan. Ventilation fans of the same model and energy should be selected for joint operation. When using series connection, there should be a certain pipeline connection between the first level ventilation fan and the second level ventilation fan.