Vacuum Pumps

SR type Roots blower
Equipment used in the fields of electricity, chemical industry, mining, metallurgy, etc
The FR Roots blower is a versatile equipment utilized in various sectors such as power, chemical, mining, and metallurgy, primarily for conveying clean air and inert gases. Its core operational principle lies in achieving gas conveyance through volume changes, with flow rate being directly correlated to the blower’s volume and rotational speed.
The equipment adopts a double cycloid structure design, featuring simple structure, long maintenance cycle, and stable operation. Among the main components, the casing is made of high-strength gray cast iron HT200, which is resistant to high temperature and pressure; the rotor is made of ductile iron QT400 and undergoes dynamic balance correction to ensure friction-free operation. The transmission gears are processed with 5-level precision and hardened treatment, and are paired with high wear-resistant bearings to extend their service life. The equipment integrates a safety valve and a check valve, which are used for overpressure relief and prevention of gas backflow, respectively. The base adopts a steel frame to accommodate the motor drive. The elastic joint is made of rubber steel skeleton, which effectively reduces operational vibration, and the overall structure meets the requirements of high pressure and special gas transportation.

working principle
The gas undergoes no compression changes within the body. When it reaches the exhaust port, due to the equal work resistance between the exhaust port and the working environment, the exhaust gas must overcome the resistance before being expelled, thus generating gas pressure. Therefore, the flow rate of the fan is related to its volume and rotational speed.

Scope of application
It is widely used in various fields such as electricity, chemical industry, mining, metallurgy, environmental protection, light industry, building materials, flour, and aquaculture.

medium
Deliver clean air and various inert gases.

Performance Characteristics

1. Features of SR series double cycloid Roots blower
   The SR series double cycloid fan boasts a simple structure, easy manufacturing, convenient operation, and a long maintenance cycle. It exhibits stable working characteristics, requires fewer consumable parts, and offers a long service life. With a special cooling structure, the impeller adopts a novel line, ensuring excellent sealing, high efficiency, and energy saving. It is highly suitable for high-pressure and special gas conveyance.
2. Fan design and structure
   The main components of the SR series Roots blower have the following characteristics:
   2.1 Chassis
   The casing is made of high-strength gray cast iron HT200, which has sufficient strength to resist wear and deformation under high temperature and high pressure conditions.
   2.2 Rotor
   The rotor is made of high-strength ductile iron QT400, processed by advanced machining centers and CNC machines, and assembled through coaxial hot fitting. It has been calibrated by an advanced dynamic balancing machine, ensuring no contact or friction between the two rotors during operation and a long service life.
   2.3 Bearing
   The bearing features high precision and strong wear resistance.
   2.4 Transmission gear
   The gear adopts a manufacturing accuracy of Grade 5, and the tooth surface has undergone hardening treatment, ensuring a long service life.
   2.5 Base
   The blower units driven by electric motors are installed together on a steel frame base, providing information on the operational load for each group of blowers and the foundation anchor bolts required for the installation of each group of equipment
   2.6 Safety valve
   It is a safety device on the unit. When the system operates in an abnormal state and the resistance exceeds the rated working pressure of the fan, the safety valve automatically opens to vent the gas and relieve the load, preventing the fan and motor from being overloaded and providing automatic protection to the system.
   2.7 Check valve
   It is used to prevent the backflow of high-pressure gas in the system during fan shutdown, which could cause the rotor of the blower to rotate in reverse, leading to failures such as impeller collision.
   2.8 Elastic joint
   It is made of rubber and steel frame, and has good shock absorption effect.

Contact Us

TEL/WHATSAPP:+86 15053178716

EMAIL:thechin1989@outlook.com

ADRESS:ZHANGQIU,JINAN,SHANDONG,CHINA

LONGMECH MANCHINERY CO.,LTD.