Roots blower in the procurement place, the first problem encountered is the determination of the model, some large-scale projects, there will be technical personnel to determine the parameters, the technical personnel will hand over these parameters to us, and then purchase, for customers who have no experience in fan procurement, we can purchase according to the following knowledge.
1. Determine the exact model.
To purchase a roots blower, you first need to determine the pressure and conveying capacity required for the work, as well as the temperature, air pressure, corrosion resistance and so on. The model of the roots blower can generally only indicate its caliber and the volume of the roots blower. However, each manufacturer is different, so it is not realistic to buy by model.
2. Fan pressure.
The pressure of roots blower is also very different because the roots blower manufacturers have different control capabilities for the machining accuracy of impellers, casings and wall panels.
The main reason for the large difference in the air volume of the same fan is the size of the volume of the roots blower, the speed of the set roots blower, and the leakage under high pressure and pressure. The pressure resistance of the traditional roots blower can be 1The pressure of 0 used to be almost mythical. However, with the application of new technologies such as numerical control, some manufacturers have begun to make breakthroughs, and Hua Dongfeng is the real value embodiment of roots fans.
The volume of a roots blower multiplied by its rotational speed is its conveying capacity. As the pressure increases, the leakage increases until it all forms a circulating current, i.e. the light consumption current. So for a good roots blower, pressure is a hard indicator.
3. Fan comparison.
So how to choose a good roots blower? This depends on the same speed, the same pressure, choose the roots blower with smooth operation, dull sound and low temperature rise.
4. Low price**.
Buying a matching roots blower is not as simple as looking at the model and low **. Be sure to explain to a sales professional how much volume and pressure you need to achieve. Find out if the selected product can meet the requirements and whether the configured power is appropriate. Then the roots blower manufacturer will complete the pre-factory commissioning according to your requirements.
5. Performance adaptation.
The ultimate goal of selection is adaptation, that is, the wind turbine we purchase must be adapted to our engineering system, if it cannot be adapted to the engineering system, the trouble caused may be unimaginable. For example, roots gas compressors will be used in the gas transmission system, if the fans we purchase are not explosion-proof and poorly sealed, it is likely to cause major engineering accidents. Another example: where we select the fan, there is an error in the selection of the fan, and the fan cannot meet the needs of the working conditions, which is likely to cause damage to the fan equipment, which not only affects the progress of the project, but also causes the loss of money. As procurement, we will face pressure and accusations from all sides.