Determination method for speed of smoke of cut tobacco near end of filter tip in cigarette smoking process

Abstract

The invention discloses a determination method for a speed of smoke of a cut tobacco near end of a filter tip in a cigarette smoking process. In a process of simulating the cigarette smoking process in a smoke experiment machine, pressure P of a suction end of the filter tip of a cigarette and pressure P1 of the cut tobacco near end of the filter tip are measured under different smoking frequencies f by utilizing a pressure gauge; a linear regression equation is obtained by linearly fitting the smoking frequencies f and the pressure P of the suction end of the filter tip through Origin software; smoking frequency f1 under the pressure P1 corresponding to the cut tobacco near end of the filter tip is solved through the linear regression equation; and finally, the filter tip of the cigaretteis removed and a smoke flow value of the smoking frequency f1 is correspondingly solved through a flow meter, so that the speed of smoke of the cut tobacco near end of the filter tip in the cigarettesmoking process is solved. By adopting the method, the difficulty of measuring the speed of the smoke at a connection part of cut tobaccos of the cigarette and the filter tip can be solved; and the determination method is simple and effective, has good repetitiveness and can be applicable to determination of smoke speeds of various cigarette products under different smoking pressure.

Description

technical field [0001] The invention relates to the technical field of measuring the smoke velocity of cigarettes, in particular to a method for measuring the smoke velocity of a filter tip near the shredded tobacco end during cigarette smoking. Background technique [0002] In recent years, the methods for measuring the velocity of the flue gas flow field include: (1) Velocimeter tube measurement method, which can observe and understand the trajectory of the airflow and the range of the jet, etc., and can obtain the velocity field direction map of the airflow and measure the airflow everywhere. speed value. Velocity tubes for airflow and burner jet measurement often include Pitot tubes, Prandtl tubes, etc.; (2) Hot wire (hot film) velocity measurement method, using the principle of heat balance to measure the average velocity and direction of the flow field , has the advantages of small size, wide frequency response, high sensitivity, and little interference to the flow fi...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, propose a method for measuring the smoke velocity at the end of the filter near the shredded tobacco in the cigarette smoking process, and solve the problem of measuring the smoke velocity at the junction of the shredded tobacco and the filter tip of the cigarette question

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