An electromagnetic clutch rotary packed bed with online cleaning and its control method

Abstract

The invention discloses a double-electromagnetic clutch rotary packed bed which runs in a long cycle based on ultrasonic cleaning. According to the packed bed, connection and cut-off of a rotating shaft are controlled according to the electromagnetic induction principle; the control strategy of utilizing the double-electromagnetic clutch rotary packed bed based on ultrasonic cleaning to clean rotors "without stop" is realized through a process control system, rotary packed bed online replacement time is determined through a gas outlet pressure monitoring instrument, and operating state switching of the rotary packed bed in the production process is realized through the process control system in cooperation with a double-electromagnetic clutch device; and through combination of an ultrasonic probe and the process control system, ultrasonic cleaning of rotor packing is realized. Through the structure and strategy, the rotary packed bed can remotely switch operating states and perform equipment ultrasonic cleaning under the condition of not influencing production, the problem that a bearing and a seal are damaged because an intermediate product adheres to the rotor packing is solved,and long-cycle stable operation of the rotary packed bed is guaranteed.

Description

technical field [0001] The invention relates to an on-line cleaning of a rotating packed bed using ultrasonic waves and a control method thereof, belonging to the field of chemical equipment. Background technique [0002] The existing rotating packed bed works in the way that the motor drives the rotor loaded with packing to rotate, that is, the centrifugal effect of the fluid and the cutting effect of the rotating packing on the reaction feed liquid are used to increase the gas-liquid contact area and realize the function of enhancing mass transfer. For example, the Chinese invention patent with the publication number CN106040159A discloses "a high-gravity rotating packed bed device", which drives the rotor to rotate and centrifuge through the motor shaft. This method of generating a centrifugal field by rotating the rotor and increasing the contact area of ​​the gas-liquid in the filler of the rotor to enhance the mass transfer has problems in actual operation, because the...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of uneven distribution of rotor mass that often occurs in the prior art, resulting in imbalance of rotor mass, causing rotor vibration, resulting in damage to bearings and seals, and the inability to replace and clean the rotor on-line, the present invention provides an on-line cleaning electromagnetic The clutch-type rotating packed bed and its control method are characterized in that: the rotating packed bed has two rotors, a main rotor and a backup rotor, the main rotor is connected with the main electromagnetic clutch through the central axis of the main rotor, and the main electromagnetic clutch is closed , the main electromagnetic clutch is connected to the main auxiliary gear through the center shaft of the main auxiliary gear; the backup rotor is connected to the backup electromagnetic clutch through the backup rotor center shaft, the backup electromagnetic clutch is cut off, and the backup electromagnetic clutch is connected to the backup backup gear through the backup backup gear center shaft ; Both the main auxiliary gear and the backup auxiliary gear are meshed with the main gear, and the main gear is connected to the motor through the central shaft of the main gear; the main rotor has the main rotor feeding and discharging circuit and the main rotor ultrasonic cleaning unit, and the backup rotor Spare rotor feed and discharge circuits and spare rotor ultrasonic cleaning unit; the rotating packed bed also has a control unit and a rotor mass imbalance monitoring unit

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