High air volume Roots blower is a type of gas conveying equipment widely used in various industries, such as sewage treatment, mining, chemical, food, factory ventilation, underground garage ventilation, building smoke exhaust, automobile exhaust treatment, and waste gas treatment. The following is a detailed introduction to high air volume Roots blowers:
1、 Working principle
The working principle of a high air volume Roots blower is based on the relative motion of two blade rotors in the cylinder, thereby achieving gas compression and transportation. This blower has a compact structure and is easy to manufacture, making it very suitable for gas transportation and pressurization tasks under low pressure conditions, and can also be used as a vacuum pump. Two rotors rotate in relative positions, forming the suction and transportation of gas. The gap between the rotors is designed very precisely, which can effectively prevent gas leakage and ensure the operation of the fan. When the rotor rotates, gas is sucked in and compressed, and finally discharged through the air outlet.
2、 Characteristics
1. Simple structure: Roots blower has a compact structure and is easy to maintain.
2. High pressure: The single-stage pressure can reach 98KPa, which can meet the high pressure requirements.
3. Constant air volume: It has the characteristic of forced air supply, stable air volume, and is not affected by pressure changes.
4. Wear resistant and durable: Roots blowers are usually made of wear-resistant materials with a long service life.
5. Loud noise: Due to the sudden compression of air passing through the outlet of the fan, the noise is relatively loud. But noise can be reduced by installing mufflers and soundproof covers.
3、 Selection parameters
The key parameters for selecting a high air volume Roots blower mainly involve air volume, static pressure, power, speed, and noise. Here are some common models and their parameters:
Model Air Volume (m3/h) Static Pressure (Pa) Power (kW) Speed (rpm) Noise (dB)
CSR100 150-270 500-2000 5.5-18 2900-3400 64
CSR250 200-470 1000-4000 7.5-37 2900-3400 68
CSR150 400-1100 2000-9000 15-75 1450-2900 72
CSR200 1600-3000 5000-14000 75-280 590-1450 76
CSR300 270-4300 10000-25000 75-315 590-1450 80
4、 Application Fields
1. Wastewater treatment: Roots blowers provide a stable gas supply for aeration during the wastewater treatment process, improving treatment efficiency.
2. Factory ventilation: By circulating air through Roots blowers, the internal temperature of the factory is effectively reduced and the working environment is improved.
3. Underground garage ventilation: Roots blower can force air circulation, quickly exhaust polluted air in the garage, and ensure the replenishment of fresh air.
4. Building smoke exhaust: When a fire occurs inside a building, Roots blowers can quickly exhaust smoke and provide a good evacuation route.
5. Waste gas treatment: Industrial production processes generate a large amount of waste gas, and Roots blowers can send the waste gas into treatment equipment for filtration and purification.
5、 Advantages and disadvantages
advantage:
1. Simple structure and easy maintenance.
2. High pressure, stable airflow.
3. Wear resistant and durable, with a long service life.
4. Relatively low price, suitable for small and medium-sized enterprises.
Disadvantages:
1. The noise is loud and noise reduction measures need to be taken.
2. Ordinary Roots blowers cannot adjust the air volume, resulting in significant energy waste. But after matching with frequency conversion, the air volume can be adjusted according to the system's needs, and the energy-saving effect is significant.
In summary, high air volume Roots blowers have a wide range of application fields and significant characteristics. When selecting, it is necessary to comprehensively consider parameters such as air volume, static pressure, power, speed, and noise based on actual needs. At the same time, attention should also be paid to its advantages and disadvantages in order to take corresponding measures to optimize performance and reduce energy consumption during use.
