Lu fan is an indispensable machinery industry equipment in sewage treatment industry, electroplating and mixing industry, and paper equipment industry. What is the principle and structural characteristics of Lu fan? I will explain them one by one.

Principle:

Lu's blower is different from the traditional blower. It uses two blade shaped rotors to make relative movement in the cylinder to compress and transport gas. The compressor keeps the two rotors in mesh by the synchronous gear at the end of the rotor shaft. Each concave curved surface part on the rotor forms the working volume with the inner wall of the cylinder. During the rotation of the rotor, the gas is taken from the suction port. When the rotor moves to the exhaust port near the exhaust port and connects with the exhaust port, the pressure in the working volume rises suddenly because of the high pressure gas reflux, and then the gas is transported to the exhaust channel.

characteristic:

1. Lu fan consists of impeller and casing. The impeller is embedded in two impeller shafts, one driven shaft and one driving shaft. Each shaft has an impeller, and each impeller has three blades connected, so it is called three leaves. The driving shaft and driven shaft rely on the fixing of the bearing and the engagement of the gear so as to rotate and compress. The impeller is processed by precision CNC planer. There is a certain distance between the two impellers, but they are complementary to each other. Relatively speaking, there is a certain distance between the impeller and the casing, so as to rotate and compress to produce clean air. Generally, the unit of air volume of Lu fan is represented by cubic meter per minute (m3 / min). Even though the exhaust volume per minute of the fan is expressed, the letter of air volume is QS. The pressure unit of the fan is kPa, which can also be said to be kilogram per square meter. In sewage treatment, it is generally said that the pressure is several meters. If you know the two values of the air volume and pressure of the fan, you can choose the type of fan and the power of the motor.

2. Lu fan has a large impeller. When the pressure is adjusted within the allowable range, the flow rate changes little, and the pressure selection range is wide, so it has the characteristics of forced gas transmission. The medium does not contain oil during transportation. It has the advantages of simple structure, convenient maintenance, long service life and small vibration.

3. This kind of blower is simple in structure and convenient in manufacture. It is suitable for gas transportation and pressurization in low pressure situation and can also be used as vacuum pump. Due to the periodic suction, exhaust and instantaneous constant volume compression, the velocity and pressure pulsation of the gas flow will be produced, which will cause larger aerodynamic noise.

4. Roots blower uses two 8-shaped blades, and the gap between them is very small. By the extrusion of two blades, the gas is squeezed to the air outlet.

5. The precision of Roots blower is very high, and the assembly requirements are also very strict.