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Roots blower 3L10, 11 (caliber 25, 32)

Classification:Roots blower

3L10~11 roots blower, flow from 0.5 ~ 1m 3/min, pressure 10 ~ 60kpa. Motor power 0.37~2.2kw. Greatly reduce the difficulty of processing. Reference price: 2500 yuan
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Roots blower 3L10, 11 (caliber 25, 32)

Product Details

3L10~12 flow from 0.5 ~ 1m 3/min, pressure 10 ~ 60kpa. Motor power 0.37~2.2kw.

Fan selection parameter table


The two impellers rotate towards each other. Because the gaps between the impeller and the impeller, the impeller and the casing, and the impeller and the wall plate are extremely small, the air inlet forms a vacuum state. The air enters the air inlet cavity under the action of atmospheric pressure. Then, two blades of each impeller, the wall plate and the casing form a sealed cavity. The air in the air inlet cavity is in the process of impeller rotation, the sealed cavity formed by the two blades is continuously brought to the exhaust cavity, and because the impellers in the exhaust cavity are meshed with each other, the air between the two blades is squeezed out, so that the air is continuously running. It is continuously transported from the air inlet to the air outlet, which is the entire working process of the Roots fan. Roots fan is a kind of volumetric fan, there are two three-blade impeller in the space sealed by the casing and wall plate relative rotation, because each impeller is the use of involute, or epicoidal envelope, each impeller of the three blades are exactly the same, while the two impellers are exactly the same, thus greatly reducing the processing difficulty. Impeller in the processing of the use of numerical control equipment, the two impeller in the center of the same case, regardless of the two impeller rotation to what position, can maintain a certain minimum gap, so that the gas leakage within the allowable range.

The wind pressure of Roots blower is not limited by the speed of the fan, and the wind pressure can remain unchanged regardless of the speed change. The air volume is proportional to the fan speed, that is, Q = KN

Q: represents air volume n: represents fan speed k: is the coefficient

It can be seen from the formula that the air volume adjustment is completely changed by the frequency converter to achieve stepless speed change, which has the effect of adjusting the air volume. According to the lowest frequency of the field application process fan 15HZ, usually around 35HZ, there are individual moments of 50HZ full air volume operation, because the shaft kiln process is basically the same, so in different shaft kiln air volume adjustment is basically the same, all shaft kiln application frequency conversion technology can obtain about 40% energy saving effect. Roots blower has a constant torque load, and its power saving rate is proportional to the speed drop, that is, N%= △N%. Although it is different from the general fan and water pump, the power saving rate is higher, but because of its large power, and as long as the furnace wall is not bad, it works continuously for 24 hours, and the start-up time is also very long. Therefore, the potential for power saving is large and the cost of power saving is high.

Keywords：Roots blower 3L10, 11 (caliber 25, 32)

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