Cigarette dynamic suction resistance detection instrument and method thereof

Abstract

The invention relates to a cigarette dynamic suction resistance detection instrument and a method thereof, the cigarette dynamic suction resistance detection instrument comprises a turntable, a smokecirculating pipe, a first differential pressure sensor, a suction mechanism and a control processing system, the turntable is internally provided with X independent air passages, X is greater than orequal to 2, and the X independent air passages are arranged in an annular array along the circumferential direction of the turntable, one end opening of the air channel is a cigarette receiving opening used for being connected with a cigarette, the other end opening of the air channel is a butt joint opening formed in the lower end face of the rotary disc, the butt joint opening is used for beingin butt joint communication with the front end opening of the smoke circulation pipe, the front end opening of the smoke circulation pipe is provided with a sealing assembly in sealing contact with the lower end face of the rotary disc, the rear end of the flue gas circulation pipe is connected with the suction mechanism, and the first differential pressure sensor is used for detecting the differential pressure between the interior of the flue gas circulation pipe and the atmospheric pressure in real time; and the first differential pressure sensor and the suction mechanism are connected withthe control processing system. The cigarette dynamic suction resistance detection instrument can simultaneously detect the dynamic suction resistance of a plurality of cigarettes, and greatly accelerates the dynamic suction resistance detection process.

Description

technical field [0001] The invention relates to the field of tobacco detection, in particular to an instrument and method for detecting dynamic draw resistance of cigarettes. Background technique [0002] The tobacco industry usually uses static draw resistance to quickly characterize the draw resistance of cigarettes. Static draw resistance refers to the draw resistance of a cigarette when the draw flow rate is constant in the unlit state, but because the draw flow rate changes when consumers smoke Therefore, the static suction resistance cannot be directly compared with the consumer's burning and suction resistance. Therefore, it is necessary to establish a detection and characterization method for dynamic draw resistance to characterize the direct feelings of consumers. Dynamic draw resistance refers to the draw resistance under the condition of changing puff flow rate. , where the dynamic draw resistance of a cigarette in the ignited state is called the dynamic draw res...

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Problems solved by technology

[0003] At present, single-channel smoking machines have been used to measure the dynamic draw resistance of cigarettes, but the existing single-channel smoking machines can only measure one cigarette at a time. In the work of resistance detection, especially in the detection process of the dynamic resistance of burning and smoking, since the dynamic resistance of burning and smoking is detected in the burning and smoking stage, and a cigarette will have a smoldering stage as a transition between different burning and smoking stages, the smoldering Alternate phases and burning phases, long waiting time in the smoldering phase, and low work efficiency

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