Method for detecting temperature distribution in cigarette smoking process

Abstract

A method for detecting temperature distribution in a cigarette smoking process includes following steps: (1) determining temperature distribution detecting points: equally dividing a cigarette into a plurality of depth gradients along the radius, and setting at least 8 detecting points in the axial direction of each depth so as to uniformly distribute a plurality of grid nodes on the longitudinal section of the cigarette; (2) determining a smoking reference: using the detection data of the cigarette at a certain axial position and different depths of the plurality of grid nodes,at a certain time and in static combustion, and starting a smoking machine to begin to smoke after the temperature is reached when detection is carried out at a specific depth; and (3) translating and averaging temperature data constant-value: performing repeated experiments at the same depth, and realizing constant-value translating and averaging of original data of the repeated experiments so as to guarantee consistency of smoking moments. The method has the advantages that the method can meet requirements of researchers and quality detection personnel on detection of combustion mechanism, smoke generation and temperature distribution in the cigarette smoking process, and provides a relevant basic data support for cigarette smoke research.

Description

Technical field: [0001] The invention relates to a method for detecting the combustion temperature of cigarettes, in particular to a method for detecting temperature distribution in the process of smoking cigarettes. Background technique: [0002] The cigarette itself is regarded as a complex reactor, in which a series of chemical reactions such as combustion and cracking occur. The temperature distribution inside the cigarette combustion cone is an important factor affecting the formation of smoke components. The formation and transfer of smoke aerosols and the composition of the final smoke are of great significance. This kind of work has been carried out earlier in foreign countries. R.R.Baker of British American Tobacco Company detected and mapped the temperature distribution of cigarettes during smoldering and smoking. In China, Zheng Saijing of Shanghai Tobacco Company and Li Bin of Zhengzhou Tobacco Research Institute used micro-thermocouples to detect and obtain T...

AI Technical Summary

Problems solved by technology

[0007] In summary, various detection devices developed by predecessors have gradually matured, but the corresponding detection methods still need to be improved, and the following key problems exist: 1. Determination of temperature distribution detection points, including axial position and radial depth gradient; 2. In traditional work, the combustion line is used to determine the suction time. Since the combustion line advances slowly and is not uniform and irregular, it is necessary to observe the combustion with naked eyes Whether the line reaches the marking line makes the method of using the combustion line to determine the suction time in traditional work less sensitive; 3. The original temperature data cannot be directly used for interpolation calculations, and preprocessing is required to ensure the consistency of the suction time; 4. Obtaining only the temperature field information of cigarettes is not enough for studying the combustion mechanism of cigarettes and the mechanism of smoke generation.

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