Maintenance Manual of 2BV water ring vacuum pump

2BV water ring vacuum pump and equipment installation: 1 Pump installation: when the vacuum pump and compressor are installed, the installation surface must be horizontal and firmly installed with bolts through the holes at the bottom corner In order to prevent welding slag from entering the vacuum pump during installation, a filter screen shall be installed on the suction pipe during installation 2 Installation of gas water separator the gas water separator can be directly installed on the exhaust port of vacuum pump and fixed firmly with bolts The gas-water separator has a pipeline connected with the pump to supply the working water demand of the pump, and the rest of the working water is supplied by the water supply pipe, and the size of the water supply is regulated by the valve on the pipeline Check valve shall be installed on the intake pipe of the vacuum pump or compressor to prevent the water in the vacuum pump or compressor from returning to the system under the pressure of the exhaust pipe when stopping Start and stop of 2BV water ring vacuum pump: 1 Before starting a long-term stop pump, turn it several times by hand to confirm that there is no jamming or other damage in the pump Start in the following order (see Figure 5) (1) open the exhaust valve (2) Start the motor (pay attention to the forward and reverse rotation of the motor) (3) quickly open the water supply pipe 2 in Figure 5 Gradually increase the water supply until the water supply meets the specified requirements (pay attention not to run the vacuum pump dry) 2 Stop and stop in the following order: (1) (if there is a valve in the air inlet pipe), close the valve on the air inlet pipe (2) Close the water supply pipe 2 and shut down the vacuum pump quickly (3) After shutdown, the water in the pump cavity shall be drained to prevent the blade and pump shaft from breaking when starting again 2BV water ring vacuum pump maintenance: 1 In order to avoid wearing the impeller, pump body or jamming the impeller, dust particles entering the pump cavity with gas and working fluid can be washed away through the flushing port at the bottom of the pump 2 If hard water is used as working fluid, it shall be softened or the pump shall be cleaned with solution within a certain period 3 The normal working bearing of the motor is 15 ℃ ~ 20 ℃ higher than the surrounding temperature, and the Zui is not allowed to be higher than 55 ℃ ~ 60 ℃ The normal working bearing shall be filled with oil 1-2 times a year, cleaned at least once a year, and all lubricating oil shall be replaced 4 In case of leakage of the adopted mechanical seal, check whether the dynamic and static rings of the mechanical seal have been damaged or the sealing rings have aged If the above situations occur, replace the new parts 2BV water ring vacuum pump failure and elimination methods: troubleshooting methods for possible causes of failure motor does not start; no sound two power lines break check wiring motor does not start; there is a buzz one wiring break, motor rotor locked rotor impeller failure motor bearing failure empty cleaning pump, correct impeller clearance change impeller When the bearing changing motor starts, the current breaker trips the winding, the short circuit motor is overloaded, the exhaust pressure is too high, the working fluid is too much Check the motor winding, reduce the flow of working fluid, reduce the exhaust pressure, reduce the power consumption of working fluid, produce precipitation, clean, remove the precipitation pump, no vacuum, no working fluid system leakage, serious rotation direction error Check the working fluid, repair the leakage Replace two wires, change the direction of rotation, the vacuum is too low, the pump is too small, the flow rate of working fluid is too small, the temperature of working fluid is too high (< 15 ℃), the abrasion system leaks slightly, the seal leaks, use a larger pump to increase the flow rate of working fluid, cool the working fluid, increase the flow rate, replace parts, repair leaks, check the sealing, sharp noise, produce cavitation, the flow rate of working fluid is too high, and connect the gas corrosion protection parts Check the working fluid and reduce the leakage of the flow pump Check all sealing surfaces for damage