Explosion-proof Roots blower When operating two rotary blowers in alternating fashion, avoid frequently switching the blowers on and off within a short period. The safe operation and service life of Roots blowers depend on proper and regular maintenance and upkeep. Attention should be paid to any potential issues. In addition to following general maintenance procedures, special attention should be given to the following points: There should be no oil leakage inside the explosion-proof Roots blower housing. There must be no scaling, rusting, or flaking inside the explosion-proof Roots blower housing. Monitor whether lubrication and cooling are functioning properly; pay close attention to the quality of the lubricating oil. Regularly listen for unusual noises during blower operation, ensure that the unit is not running under conditions that deviate from specified parameters, and remember to add grease at regular intervals. Overloading of a Roots blower may not always be immediately apparent. Therefore, it is crucial to monitor trends in inlet and outlet pressures, bearing temperatures, and motor currents to determine whether the machine is operating normally. For new blowers or blowers after major overhauls, the oil tank should be thoroughly cleaned before starting up according to the prescribed operating procedures. It is recommended to replace all the lubricating oil after running the blower for about 8 hours.

　　Patents widely used in industries such as power, steel, cement, and papermaking. Explosion-proof Roots blower Due to the presence of a large number of hard particulate dust and acidic gases in the gas medium being conveyed, the flow components of the explosion-proof Roots blower are subjected to intense erosive corrosion. In particular, the impeller—whose blade tips reach an operating linear velocity of 160 meters per second—experiences wear at a rate significantly higher than other parts. According to statistics, impellers made from ordinary carbon steel or common wear-resistant steel 16Mn typically have a service life of only about six months, with some lasting as little as tens of days. Even after employing various surface wear-resistant treatments such as surfacing welding, spraying, flame spraying, and coating with polymer-based wear-resistant materials, it remains difficult to achieve a substantial improvement in service life.

　　 Explosion-proof Roots blower There should be a certain clearance between the two impellers, between the impellers and the wall plates, and between the impellers and the casing to ensure the proper operation of the Roots blower. If the clearance is too small, the blower may experience vibration, overheating, and unusual noises. The cause of such excessively small clearances often lies in the maintenance phase of explosion-proof Roots blowers: maintenance personnel fail to adjust the locating pins between the gear ring and the gear hub according to the specified tolerances for gear meshing, center distance tolerances, and deviations in the center distance of the gear box shaft holes. This results in inaccurate positioning dimensions of the locating pins, thereby affecting both the tooth-side clearance of the gears and the clearance between the impellers.

　　Assuming the positioning dimensions of the locating pins for the explosion-proof Roots blower are accurate, the issue arises because the clearances between the impellers, between the impellers and the wall plates, and between the impellers and the casing were not adjusted in accordance with the prescribed method for adjusting Roots blower clearances. Explosion-proof Roots blower The clearance between impellers, between the impeller and the wall plates, and between the impeller and the casing is too small, causing vibration, overheating, and abnormal noises in the fan. These issues severely affect the stable operation of the fan. The volume flow rate of a fan is defined as the product of the air velocity V and the cross-sectional area F of the duct. For large-scale fans, since the air velocity can be accurately measured using an anemometer, calculating the volume flow rate is quite straightforward—simply use the formula Q = VF to determine the volume flow rate.

　　About Explosion-proof Roots blower Particular attention should be paid to the area where the main shaft passes through the shaft-end seal located on the side panel of the intake casing. Due to the condensation of small amounts of air that may leak in, this area is highly susceptible to corrosion. If the fan has been operating in an unbalanced condition for an extended period, the main shaft should be checked for straightness as early as possible. The coupling must be kept clean, and its connection tightness should be regularly inspected. For the maintenance of the bearings in explosion-proof Roots blowers, frequently check the lubrication oil supply situation. When changing the lubricating oil, always use the specified grade of oil, and only after thoroughly cleaning the oil tank can new oil be added. To clean the bearings, first remove the anti-rust oil from the new bearings using clean diesel or kerosene free of water. For rough cleaning: Use a brush or other tools to remove grease or adhering substances while the bearing is immersed in oil. At this stage, if you rotate the bearing in the oil, be careful not to damage the raceway surface due to foreign objects. For fine cleaning: Slowly rotate the bearing in the oil, carefully washing it clean. For hot-fitting bearings, place the bearing in oil at an appropriate temperature for heating. During heating, ensure that the bearing does not come into contact with the bottom of the heating container, and avoid overheating the oil to prevent annealing of the bearing steel.

　　When selecting an explosion-proof Roots blower, the primary considerations are flow rate and pressure, while also ensuring that other requirements—such as installation conditions and noise levels—are met. Before making the final selection, it’s essential to analyze the process’s specific air supply needs: Does the process require constant flow or constant pressure? How stringent are the process’s requirements for these parameters? And once the model parameters of the Roots blower are compromised, what will be the severity of the resulting consequences? Explosion-proof Roots blower This is a constant-flow fan, where the primary operating parameter is airflow. The output pressure varies depending on changes in the ductwork and load, but the airflow itself remains relatively stable. The airflow parameter is the key specification for explosion-proof Roots blowers; it’s absolutely essential to have this airflow value when selecting a Roots blower. Without this parameter, proper selection becomes impossible. Many customers in the aquaculture industry, when choosing Roots blowers, tend to focus only on motor power, while disregarding airflow and pressure. Nevertheless, we strongly recommend that everyone take the time to provide the correct airflow parameter for their explosion-proof Roots blower. As for the pressure parameter, it’s one of the most critical specifications for Roots blowers—and indeed, it’s extremely important.