Smoking machine with constant flow velocity

Abstract

The invention provides a smoking machine with a constant flow velocity. The smoking machine comprises a cigarette clamp holder, a total particulate matter catcher, a reversing valve, a gas flow detection control device, a vacuum pump and a mainstream smoke collecting opening, wherein the cigarette clamp holder is arranged on an upper panel; the total particulate matter catcher is connected onto a mainstream smoke pipeline at the back end of clamp holder; an organic glass cover used for collecting sidestream smoke is mounted on the upper panel; a sidestream smoke outlet is formed in the upper panel positioned in the glass cover; a sidestream smoke filter screen is additionally arranged at the sidestream smoke outlet, and the sidestream smoke outlet is communicated with a sidestream smoke blower and a sidestream smoke collecting opening; the total particulate matter catcher is mounted on the upper panel; the reversing valve, the gas flow detection control device and the vacuum pump are arranged on a bottom plate; a cleaning gas circuit interface is arranged on the reversing valve. The smoking machine with the constant flow velocity, provided by the invention, has the advantages that smoking flow quantity of a cigarette can be stabilized, the setting and control of the constant flow velocity can be achieved, a smoke passage can be cleaned timely, influences on experimental results are reduced greatly, the mainstream smoke and sidestream smoke can be collected in an expanded manner during cigarette burning, and analysis and detection to compositions of the mainstream smoke and the sidestream smoke can be achieved.

Description

technical field [0001] The invention belongs to the field of cigarette burning and smoking index detection instruments, and in particular relates to a constant flow rate smoking machine with controllable suction capacity. Background technique [0002] Various smoking machines are generally used in the detection of cigarette smoke components, combustion temperature and other indicators in the laboratory. In order to make the test data obtained between laboratories comparable, GB / T 16450-1996 "Definition and Standard Conditions of Smoking Machines for Routine Analysis" stipulates that the standard smoking method is a suction time of 2s and a suction interval of 58s. The mouth suction capacity is 35ml, and most smoking machines currently in use are designed around this standard. [0003] When conducting research on cigarette smoking indicators, especially cigarette combustion temperature and smoke component formation mechanism, due to the inflexible adjustable range of the smo...

AI Technical Summary

Problems solved by technology

Although the device solves the problem of continuous smoking, the degree of automation of the device is not high; the flue gas channel cannot be cleaned in time, which may cause poor repeatability of the experimental results; affected by the surrounding environment

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