When debugging Roots blower, the following safety matters should be noted:

Prevent mechanical injury

During the operation of the fan, the rotating parts such as impeller and coupling are in high-speed motion. It is forbidden for any part of the body to touch these rotating parts to prevent being involved and causing serious personal injury. Before commissioning, ensure that the protective devices around the fan (such as belt cover, coupling cover, etc.) are installed in place and fixed firmly.

When checking the flexibility of manual impeller, the power supply must be cut off first, and a warning sign "No closing" should be hung. At the same time, make sure that your hands are clean and dry, and avoid accidental rotation caused by greasy hands. When moving the impeller, it should be operated slowly to prevent the impeller from suddenly rotating and causing injury.

Electrical safety

Roots blower motor involves electrical system. Before debugging, make sure that the motor is correctly wired and well grounded. Check whether the insulation resistance of the motor meets the requirements, and measure it with an insulation resistance meter. Generally, the insulation resistance value should be greater than 0.5 megohm to avoid electric shock accidents caused by motor leakage.

When starting and stopping the motor, a special starter or control cabinet must be used, and the operator should stand in a well-insulated position. If it is necessary to detect electrical parameters (such as current and voltage) during operation, use calibrated electrical detection tools that meet safety standards and operate in strict accordance with operating procedures to prevent electric shock.

Pressure and flow safety

During the load debugging of roots blower, the pressure and flow rate will gradually increase. Pay close attention to the pressure gauge and flow meter of the fan to ensure that the pressure and flow rate do not exceed the rated value of the equipment. If the pressure or flow rate rises abnormally, it may lead to pipeline rupture, equipment damage and even safety accidents.

When the fan stops running, slowly open the vent valve to gradually reduce the system pressure to zero, and then turn off the fan power supply. This can avoid the impact of sudden depressurization on the pipeline system and the fan itself.

Prevent gas leakage

During debugging, pay attention to check the sealing condition of the fan and pipeline system. If there is gas leakage, especially when transporting toxic, harmful or flammable and explosive gases, it will pose a serious threat to the health and safety of personnel.

Use appropriate leak detection methods, such as smearing soapy water, to check whether there are bubbles at flange joints and valve seals. For the fan conveying special gas, it may be necessary to equip with professional gas detection equipment to monitor the gas concentration in the surrounding environment in real time. If gas leakage is found, stop debugging immediately, take measures to repair the leakage point, and continue debugging after the leakage problem is solved.

High temperature protection

During the operation of roots blower, the motor and some parts may get hot. During debugging, attention should be paid to monitoring the temperature of equipment, especially the temperature of bearings and oil tanks. As mentioned above, the bearing temperature generally does not exceed 80℃, and the oil tank temperature does not exceed 70℃.

Avoid placing inflammable and explosive articles near the high temperature parts of the equipment. If it is necessary to contact with high-temperature parts for inspection or maintenance, the equipment must be stopped first, and the parts must be cooled to a safe temperature before using appropriate protective gloves and other tools for operation.

Noise protection

Roots blower will produce noise during operation, and long-term exposure to high-noise environment may cause hearing damage. Debuggers should wear appropriate hearing protection equipment, such as earplugs or earmuffs.

Warning signs should be set around the debugging site to remind people of noise protection if there are people who may be affected by noise. At the same time, try to arrange debugging at a reasonable time to avoid excessive noise interference to surrounding residents.