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Smoking machine-mainstream flue gas cold trap integrated device and using method thereof

A mainstream smoke and smoking machine technology, applied in the field of cigarette manufacturing, can solve problems such as air leakage, poor heat exchange efficiency, and difficulty in ensuring the airtightness of the device, and achieve improved capture efficiency, sufficient condensation process, and improved repeatability Effect

Active Publication Date: 2009-10-28
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some researchers used polytetrafluoroethylene materials to make cold traps to capture and analyze harmful elements in mainstream smoke, but the heat exchange efficiency of this cold trap is relatively poor, and it is difficult to ensure the airtightness of the device under low temperature conditions. Leakage phenomenon

Method used

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  • Smoking machine-mainstream flue gas cold trap integrated device and using method thereof
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  • Smoking machine-mainstream flue gas cold trap integrated device and using method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] according to figure 1 The shown schematic diagram of the device is connected to the smoking machine-mainstream smoke cold trap trapping device, (the single-channel smoking machine of the present invention is a SP1-C1 type precision injection pump) and the single-port suction capacity is set to 35ml by the background software, and the suction The flow-time curve is a bell-shaped curve. Connect a soap foam flowmeter to the cigarette holder, and test the actual single-port suction capacity of the device at different cold trap temperatures. , -115°C, -196°C), the single-port suction capacity was tested, and the results are shown in Table 1 below:

[0023] Table 1

[0024] Cold trap temperature (℃)

[0025] It can be seen from the data in Table 1 that when the temperature of the cold trap is above -115°C, the single-port suction capacity of the device is basically consistent with that at room temperature, both within the standard range of 35±0.2ml / port. When the...

Embodiment 2

[0027] Smoking the temperature and humidity balanced and screened cigarettes according to the standard conditions, firstly use the Cambridge filter to capture the mainstream smoke of a cigarette, put the filter into a 1000ml round bottom flask, then add 350ml of pure water and about 100g of NaCl , shake well and put it into a voltage-controllable electric heating mantle for heating. At the same time, the other end of the distillation extraction device was connected to a 100ml flat-bottomed flask filled with 60ml of dichloromethane, and the flat-bottomed flask was placed in a water bath for heating, and the temperature of the water bath was adjustable. Heating both sides at the same time, timing after boiling, and distilling and extracting for 2 hours at the same time to obtain 60ml of dichloromethane extract. After the distillation and extraction are completed, add an appropriate amount of anhydrous sodium sulfate to the dichloromethane extract, add phenethyl acetate internal ...

Embodiment 3

[0029]Smoking the temperature and humidity balanced and screened cigarettes according to the standard conditions, smoking 5 cigarettes each time, using the Cambridge filter to capture the particulate matter in the mainstream smoke, putting the filter into a 1000ml round bottom flask, adding 350ml pure Water and about 100g of NaCl are shaken well and put into a voltage-controllable electric heating mantle for heating. At the same time, the other end of the distillation extraction device was connected to a 100ml flat-bottomed flask filled with 60ml of dichloromethane, and the flat-bottomed flask was placed in a water bath for heating, and the temperature of the water bath was adjustable. Heating both sides at the same time, timing after boiling, and distilling and extracting for 2 hours at the same time to obtain 60ml of dichloromethane extract. Add an appropriate amount of anhydrous sodium sulfate to the dichloromethane extract, add phenethyl acetate internal standard solution,...

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Abstract

The invention discloses a smoking machine-mainstream flue gas cold trap integrated device and a using method thereof. The integrated device comprises a smoke holder, a cold trap device, a cambridge filter and a single-passage smoking machine that are sequentially connected by pipelines; the cold trap device comprises a mainstream flue gas trap pipe and is internally provided with a refrigerant; the mainstream flue gas trap pipe is dipped in the refrigerant; and the mainstream flue gas trap pipe is a quartz pipe of a spiral shape. After the sucking of a cigarette is completed, an organic solvent is added in the mainstream flue gas trap pipe and the mainstream flue gas trap pipe is vibrated sufficiently; the mainstream flue gas condensate is extracted repeatedly; subsequently, the extract is combined; and then the mainstream flue gas sample is analyzed. The method has higher and safer trap efficiency on the aroma-active components in the mainstream flue gas, effectively avoids the generation of various side effects during the flue gas sample treatment process, simplifies the treatment process, shortens time and has higher repeatability. The method has important application prospect in the fields of analyzing cigarette quality and researching flue gas fingerprints.

Description

technical field [0001] The invention belongs to the field of cigarette manufacturing research, and relates to a smoking machine-mainstream smoke cold trap collection integrated device and a use method thereof. Background technique [0002] The mainstream smoke aerosol formed during cigarette smoking is a three-phase coexistence system of gas, liquid and solid, which is divided into two parts: the gas phase and the particle phase. Most of the aroma components in the smoke components exist in the particle phase components, but still a small part exists in the gas phase components. For the collection of mainstream smoke produced by smoking machines under standard conditions, an ideal smoke collection device should meet the following requirements: simple structure; high collection efficiency, quantitative collection; easy to clean; good weight Reproducibility and high reliability; the collected substances should conform to the composition of natural smoke aerosol as much as pos...

Claims

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Application Information

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IPC IPC(8): G01N1/24G01N1/42B01D8/00B01D5/00
Inventor 文建辉钟科军王志国毛友安
Owner CHINA TOBACCO HUNAN INDAL CORP
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