Device and method for detecting air flow distribution in cigarette smoking process

Abstract

The invention discloses a device for detecting air flow distribution in the cigarette smoking process. The device comprises a cigarette paper section cavity and a filter tip section cavity which are coaxially and movably connected. The cigarette paper section cavity and the filter tip section cavity can stretch and retract in the axial direction, a through hole allowing a cigarette to pass through is formed in the axial center, and a through edge hole is vertically formed in the circumferential side wall. The end of the through hole is connected with the cigarette in a sealed mode to form an air chamber. The end of the edge hole is connected with a flow measuring part. The invention further discloses a method for detecting air flow distribution in the cigarette smoking process. The cigarette is sealed in the two section cavities of the detection device, and readings of the flow measuring part are read to obtain air flow of a cigarette paper section and air flow of a filter tip section; according to the flow balancing principle, the air flow of the combustion cone end of the cigarette is calculated. The air flow of each section in the cigarette smoking process can be accurately detected, and detection results provide basic data for further guiding cigarette material research, cigarette burning and smoking mechanism analysis and cigarette material design.

Description

technical field [0001] The invention relates to a detection device for air flow distribution during cigarette smoking, and also relates to a detection method for air flow distribution during cigarette smoking, belonging to the technical field of cigarette physical index detection devices. Background technique [0002] During the burning and smoking process of cigarettes, mainstream smoke mainly enters from three areas, namely the burning end of the cigarette, the cigarette paper section of the main body of the cigarette, and the filter section with filter ventilation. With the development of smoking and health and low-tar and low-hazard cigarettes, tobacco companies are looking for technologies for low-tar cigarettes. Up to now, changing the air permeability of cigarette paper and changing the ventilation of cigarette filters have been used to reduce smoke tar. In essence, by adjusting auxiliary materials and other factors, what is finally changed is the air intake of each s...

AI Technical Summary

Problems solved by technology

During the cigarette smoking process, according to the principle of flow balance, the 35mL gas can enter the mainstream smoke from three areas, namely the burning end of the cigarette, the cigarette paper section of the main body of the cigarette and the filter section with filter ventilation. The sum of the flow rates is 35mL, but the prior art does not have a specific detection method and detection device for each section of gas flow

Images