Annular high-pressure fan, also known as air pump, is through a high-speed rotating impeller. The air between the impeller blades is acted by centrifugal force, moving towards the edge of the impeller, where the air enters the annular cavity of the body, then returns to the impeller, and recycles again in the same way from the beginning of the blade, because the air is uniform. With ground acceleration, the circulating air generated by high-speed rotating impeller passes through in the form of helix and leaves the fan with extremely high energy for use.
RB-type pressure is proportional to current. In order to reduce faults and save power, increase the cross-section area of the air inlet and outlet as much as possible, or use air flow control valve. The air inlet should be large filters.
1. The total cross-sectional area of the outlet hole should be larger than 1/2 of the blower outlet cross-sectional area.
2. If it is used for air supply in water, the water depth should be below 70% of the maximum static pressure value indicated in the catalogue.
3. When pressurized air supply is used, the outlet temperature is normal because the relationship between air friction and normal temperature is greater than 10 degrees, so the iron pipe should be used more than 1M.
4. Suction - muffler can be installed at the entrance. The total cross-sectional area of the suction hole should be larger than 1/2 of the entrance cross-sectional area of the blower.
TB, HTB, PF, CS, MS, FMS - the pressure is inversely proportional to the current, so when the resistance is very short or very small;
1. Use air flow control valve.
2. The total cross-sectional area of the inlet and outlet should be less than 70% of the cross-sectional area of the inlet and outlet of the blower.
