Application method of negative pressure control system

Abstract

The invention discloses an application method of a negative pressure control system. The negative pressure control system and the application method thereof are included. The negative pressure controlsystem comprises a negative pressure sensor, an air valve, an air valve controller, a variable frequency fan and a controller. The negative pressure sensor is used for detecting the negative pressurevalue inside an air supply system pipe. The air valve is arranged in the pipe and plays a throttling role. The air valve controller is used for adjusting the open degree of the air valve. The variable frequency fan is arranged at one end of the pipe and used for forming the negative pressure in the pipe. A signal input end of the controller is connected with the negative pressure sensor, and a signal output end of the controller is connected with the variable frequency fan and the air valve controller. By means of the negative pressure control system, the negative pressure inside the system can maintain consistent basically, and thus consistency of product quality is guaranteed; high-frequency working duration of the fan is shortened; the service life of the fan is prolonged; and energy consumption is lowered.

Description

technical field [0001] The invention relates to the technical field of cigarette production equipment, in particular to a method for using a negative pressure control system. Background technique [0002] At present, the conveying of cut stems usually adopts the mode of wind conveying, and the sundries such as stem sticks and wet lumps in the cut stems are removed by using wind force. [0003] In the prior art, the cut-stem air delivery system is manually adjusted to adjust the negative pressure of the air delivery system based on experience. As the use time increases, the dust removal bag in the air delivery system gradually becomes clogged, and the negative pressure in the air delivery system gradually decreases. , resulting in differences in winnowing effects within batches and between batches of cut stems, the homogeneity of cut stem processing cannot be guaranteed, and material blockages in pipelines occur from time to time, and regardless of the size of production dema...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the cut-stem air delivery system is manually adjusted to adjust the negative pressure of the air delivery system based on experience. As the use time increases, the dust removal bag in the air delivery system gradually becomes clogged, and the negative pressure in the air delivery system gradually decreases. , resulting in differences in winnowing effects within batches and between batches of cut stems, the homogeneity of cut stem processing cannot be guaranteed, and material blockages in pipelines occur from time to time, and regardless of the size of production demand, the dust removal fan Always run at the maximum frequency value, which not only affects the service life, but also causes energy consumption

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