Ultrasonic wave dry fog dust-fall device and multi-loop cascade stage PID control method thereof

• Main Authors: XU XINMIN, SUN TINGTING
• Format: Patent
• Language: English
• Published: 13.05.2015
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; NOZZLES; PERFORMING OPERATIONS; PHYSICS; REGULATING; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

The invention discloses an ultrasonic wave dry fog dust-fall device and a multi-loop cascade stage PID control method thereof. The ultrasonic wave dry fog dust-fall device comprises a dry fog quality control system. The dry fog quality control system comprises a first signal collection unit, a second signal collection unit, a third signal collection unit, a master controller, an air pressure regulator and a water pressure regulator, wherein the first signal collection unit is used for collecting fog-drop quality parameter information; the second signal collection unit is used for detecting an air pressure value in an air inlet pipe; the third signal collection unit is used for detecting a water pressure value in a water inlet pipe; the master controller is used for receiving the fog-drop quality parameter information, making comparison between the fog-drop quality parameter information and a preset value, and determining whether to output a given air pressure value and a given water pressure value according to a comparison result; the air pressure regulator is used for receiving the air pressure value and the given air pressure value, making comparison between the two, and adjusting power of an air pump according to the comparison result; the water pressure regulator is used for receiving the water pressure value and the given water pressure value, making comparison between the two, and adjusting an opening degree of a solenoid valve according to the comparison result. By means of the dry fog quality control system, it is guaranteed that the device is capable of generating effective dry fog continuously and equipment life is prolonged.