Automatic correction method for water adding quantity of humidifying equipment

Abstract

The invention discloses an automatic correction method for water adding quantity of humidifying equipment. The automatic correction method comprises: firstly, measuring an inlet material flow measured value and an inlet material moisture measured value of the humidifying equipment respectively, and setting an outlet material moisture setting value of the humidifying equipment; then calculating theoretical water adding quantity of the humidifying equipment, and measuring an outlet material moisture measured value of the humidifying equipment by utilizing a moisture meter; taking the outlet material moisture setting value and the outlet material moisture measured value as forward feed input variables and taking a measured value of the water adding quantity of the humidifying equipment and the outlet material moisture measured value as disturbance quantities; forming two grades of PID (Proportion Integration Differentiation) control systems through outlet moisture feedback adjusting PID and a water adding valve PID to realize a double-pole serial connection PID control system, thereby controlling actual water adding quantity of the humidifying equipment. The deviation generated by an outlet moisture index of the humidifying equipment, at an initial phase of the equipment and caused by changes of the external environment, can be eliminated; the control level of calculation amount of the humidifying equipment is effectively improved and the working efficiency of the equipment is improved.

Description

technical field [0001] The invention relates to the field of water addition control of humidification equipment in the tobacco industry, in particular to a method for automatically correcting the water addition amount of humidification equipment. Background technique [0002] According to the technical requirements of the tobacco thread making process, many processes need to humidify and add water to the tobacco raw materials, and the amount of water added has a direct impact on the quality of the product. With the continuous improvement of the technical indicators of the tobacco industry, the humidification equipment in the head material stage, because the inlet moisture always has a process of rising from a small value to the actual value, in this process, the amount of water added by the program is far more than normal The amount of water added during production causes a large deviation of the outlet moisture at the head material stage; at the same time, when the moisture...

AI Technical Summary

Problems solved by technology

With the continuous improvement of the technical indicators of the tobacco industry, the humidification equipment in the head material stage, because the inlet moisture always has a process of rising from a small value to the actual value, in this process, the amount of water added by the program is far more than normal The amount of water added during production causes a la

Images