Three leaf Roots blower LGSR150

The Longgu LGSR150 three blade Roots blower has a flow rate of 11.15-29.61m3/min, a boost pressure of 9.8-98kpa, and a motor power of 5.5-55kw. It is a type of constant volume blower in the LGSR series, with good fan performance, a wide range of air volume, high boost pressure, and high-precision hard tooth synchronous gear precision machining manufacturing. It has reasonable meshing, low wear and tear, low leakage, high air volume conveying efficiency, and good quality. The Longgu LGSR Roots blower has been continuously developed and improved, and now has more than 20 types including 150 water-cooled, dense, dual oil tank, mechanical seal, piston ring seal, and expansion ring seal. It can be used in different industries and working environments such as pneumatic conveying, powder conveying, aquaculture, cement conveying, etc.

Introduction to Wind Turbine

The Longgu LGSR150 three blade Roots blower adopts a new type of line, which further improves the volumetric efficiency and provides excellent air volume and pressure characteristics. The blower has reduced heat generation and temperature, and the exhaust pressure of various models can reach 0.6Kg/cm2 in dry conditions;.

Fan characteristics

1. The Longgu LGSR150 three blade Roots blower adopts a fixed spiral method with an angle of over 20 degrees. The intake and exhaust shielding wires of the casing are cut into a spiral, forming a triangular intake and exhaust port with a smooth surface at the top of the rotor, which gradually opens through the rotation of the rotor.

2. The inlet and outlet of the fan do not open or close instantly like traditional Roots spiral fans, so it has the characteristics of low operating sound and low exhaust pulsation;

3. The fan adopts a three bladed linear rotor, which only needs to ensure the clearance between the rotor and the casing on the profile, with excellent performance and smooth and reliable operation.

4. Each rotor of the fan undergoes strict dynamic and static balance tests to eliminate unbalanced factors and ensure smooth and reliable operation.

5. The fan adopts a special shaped rotor, which is easy to maintain the mutual clearance between rotors and has high efficiency;

6. The fan casing does not require oil lubrication and adopts a structural design to prevent bearing and gear oil from mixing into the interior of the casing. The output air is clean and free of any oily dust.

7. The LGSR150 three blade Roots blower adopts advanced synchronous drive gears, with a wide service life and low noise

Working principle

1. The Longgu LGSR150 three blade Roots blower is a commonly used positive displacement fan, and the amount of air delivered is proportional to the number of fan revolutions. The three bladed impeller does not rotate once and is sucked and discharged three times by two impellers. Compared with the two blade Roots blower, the Longgu LGSR150 three blade Roots blower has lower gas pulsation effect, vibration, and noise.

2. The impellers on the two shafts of the Longgu LGSR150 three blade Roots blower and the holes in the elliptical housing, as well as between the impeller end faces and the front and rear end covers of the fan, and between the fan impellers, always maintain a small gap. Under the drive of the synchronous gear, the air is transported from the fan inlet along the inner wall of the housing to the exhaust side.

3. The internal cavity of the Longgu LGSR150 three blade Roots blower does not require lubricating oil, with a simple structure, smooth operation, and stable performance.

Structural characteristics

Technical Parameter