CN203772673U - Device for testing desorption rate of cigarette material - Google Patents
Device for testing desorption rate of cigarette material Download PDFInfo
- Publication number
- CN203772673U CN203772673U CN201420122950.7U CN201420122950U CN203772673U CN 203772673 U CN203772673 U CN 203772673U CN 201420122950 U CN201420122950 U CN 201420122950U CN 203772673 U CN203772673 U CN 203772673U
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- gas
- pipe
- desorption rate
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- material filling
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- Expired - Lifetime
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- 239000000463 material Substances 0.000 title claims abstract description 69
- 238000003795 desorption Methods 0.000 title claims abstract description 30
- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 235000019504 cigarettes Nutrition 0.000 title abstract description 28
- 230000000391 smoking effect Effects 0.000 claims abstract description 55
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000001816 cooling Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 18
- 230000008569 process Effects 0.000 abstract description 15
- 238000002485 combustion reaction Methods 0.000 abstract description 8
- 239000000779 smoke Substances 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 54
- 239000002671 adjuvant Substances 0.000 description 18
- 241000208125 Nicotiana Species 0.000 description 8
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 230000001007 puffing effect Effects 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000013538 functional additive Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000003094 microcapsule Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019506 cigar Nutrition 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 235000013355 food flavoring agent Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- -1 heating arrangement Substances 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229940041616 menthol Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a device for testing desorption rate of a cigarette material. The device comprises an air source, a heating device, a gas overflow device, a material filling pipe and an aspirator which are sequentially connected through a pipeline, wherein the aspirator is used for providing suction power to the air source, so that the gas passes through the heating device and the material filling pipe; the heating device is used for heating a gas; the material filling pipe is used for filling a to-be-tested sample; the gas overflow device is used for discharging an excessive gas inside the pipeline. The device is used for simulating a person to smoke, and metering an un-reacted sample to be tested and a reacted sample to be tested, so as to determine the storage stability of the additive in the cigarette and the transfer rate performance in the combustion and smoking process.
Description
Technical field
The utility model relates to the detection of tobacco additive agent, relates in particular to a kind of device of checking smoking material desorption rate.
Background technology
The primary raw material of cigarette comprises tobacco leaf and various functional additive, as essence and flavoring agent, the adjuvants such as humectant, and the adjuvant volatility of Partial Species is higher, as essence, menthol etc., the adjuvant that this volatility is higher if directly apply is on tobacco or filter stick, place after a period of time, along with volatilization, this adjuvant can run off, cause the miopragia of cigarette fragrance or adjuvant, for this reason, each tobacco productive corporation has adopted respectively different technologies, object is to deposit the loss in process for reducing adjuvant, as micro-capsule package technology, adsorbent adsorption technology, filter stick center line adsorption technology etc.
Adopt above-mentioned these technology, can reduce the loss of volatility additive in cigarette storing process, keep the consistance of the long-term local flavor of cigarette, but adopt these technology, also may suppress these components and burn and suck in process at cigarette, be transferred to the amount of main flume.
Cigarette has adopted above-mentioned technology storage adjuvant, and how it is present in effect in cigarette, and those skilled in the art tackle the stability that adjuvant deposits and burn and suck the rate of transform in process etc. various performances and detect, to guarantee the quality of cigarette.
Utility model content
The utility model embodiment provides a kind of device of checking smoking material desorption rate, simulation people smoking, unreacted testing sample and reacted testing sample are measured, thereby the stability that in mensuration cigarette, adjuvant is deposited and burn and suck the detection of shifting forthright energy in process, efficient quick, is conducive to improve the quality of cigarette.
For addressing the above problem, the device of the check smoking material desorption rate that the utility model provides, comprises the source of the gas, heating arrangement, gas overflow device, material filling pipe and the aspirator that by pipeline, connect successively;
Described aspirator, for providing suction power to source of the gas, so that gas is by described heating arrangement and described material filling pipe;
Described heating arrangement, for heated air;
Described material filling pipe, for loading testing sample;
Described gas overflow device, for unnecessary gas in discharge line.
Preferably, described heating arrangement comprises gas-heated chamber, controller and thermo detector, and described thermo detector is arranged at the outlet side of described gas-heated chamber, and described controller is controlled the heating-up temperature of described gas-heated chamber according to the feedback information of described thermo detector.
Preferably, the heating tube of described gas-heated chamber is coil pipe.
Preferably, described gas overflow device is included on pipeline and prolongs the first run-down pipe and the second run-down pipe that airflow direction sets gradually, described the first run-down pipe is connected with described aspirator with pipeline by electromagnetic switching valve, and described the second run-down pipe is connected with pipeline by T-valve.
Preferably, the exhaust end of the exhaust end of described the first run-down pipe and described the second run-down pipe is all installed one-way flow orifice valve.
Preferably, also comprise cooling pipe, described aspirator is smoking machine, and described cooling pipe is arranged between described material filling pipe and described smoking machine.
Preferably, also comprise flow control valve and flowmeter, described flow control valve and flowmeter are set in turn in the outlet side of described source of the gas.
As can be seen from the above technical solutions, the utility model embodiment has the following advantages: by the source of the gas arranging, heating arrangement, gas overflow device, material filling pipe and the virtual smoking process of smoking machine, testing sample is positioned in material filling pipe, smoking machine provides suction power by pipeline to source of the gas, gas is by heating arrangement and gas overflow mechanism, according to specified amount and assigned temperature, entering material filling pipe reacts with testing sample, by this device, can simulate people's smoking, unreacted testing sample and reacted testing sample are measured, thereby the stability that in mensuration cigarette, adjuvant is deposited and the Performance Detection that burns and sucks the rate of transform in process, efficient quick, be conducive to improve the quality of cigarette.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of checking the device of smoking material desorption rate of the utility model;
Fig. 2 is a kind of side perspective view of checking the device gas-heated chamber of smoking material desorption rate of the utility model;
Fig. 3 is a kind of front perspective view of checking the device gas-heated chamber of smoking material desorption rate of the utility model.
Wherein, in figure, mark is as follows:
1-source of the gas, 101-gas cylinder, 102-flow control valve, 103-flowmeter, 2-heating arrangement, 201-gas-heated chamber, 202-controller, 203-thermo detector, 3-gas overflow device, the 301-the first run-down pipe, 3011-electromagnetic switching valve, the 302-the second run-down pipe, 3021-T-valve, 303-one-way flow orifice valve, 4-material filling pipe, 5-aspirator, 6-cooling pipe.
Embodiment
The utility model embodiment provides a kind of device of checking smoking material desorption rate, simulation people smoking, unreacted testing sample and reacted testing sample are measured, thereby the stability that in mensuration cigarette, adjuvant is deposited and burn and suck the detection of shifting forthright energy in process, efficient quick, is conducive to improve the quality of cigarette.
It should be noted that, the alleged smoking material of the utility model can be tobacco or other smoking materials, and other smoking materials can be essence, functional additive etc.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is known and detailed description, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1～Fig. 3, Fig. 1 is a kind of apparatus structure schematic diagram of checking smoking material desorption rate of the utility model, Fig. 2 is a kind of side perspective view of checking the device gas-heated chamber of smoking material desorption rate of the utility model, and Fig. 3 is a kind of front perspective view of checking the device gas-heated chamber of smoking material desorption rate of the utility model.
A kind of device of checking smoking material desorption rate that the utility model provides, with an embodiment, describe below, the device of the check smoking material desorption rate of the present embodiment, comprises the source of the gas 1, heating arrangement 2, gas overflow device 3, material filling pipe 4 and the aspirator 5 that by pipeline, connect successively;
Aspirator 5, for providing suction power to source of the gas 1, so that gas is by heating arrangement 2 and material filling pipe 4;
Heating arrangement 2, for heated air;
Material filling pipe 4, for loading testing sample;
Gas overflow device 3, for unnecessary gas in discharge line.
Alleged source of the gas 1 can be for being equipped with the gas cylinder 101 of gas, and gas is the oxygen-nitrogen mixture body of oxygen level 0～21%, is preferably dry air, can be also the similar gas of air, as nitrogen or other inert gases, mix the mixed gas of 9% oxygen-nitrogen mixture body.This source of the gas 1 can also be air/nitrogen gas generator, compressed air pump, central pneumatics etc., and gas type can also arrange according to the needs of simulated flue gas.
In the present embodiment, heating arrangement 2 comprises gas-heated chamber 201, controller 202 and thermo detector 203, and thermo detector 203 is arranged at the outlet side of gas-heated chamber 201, and controller 202 is controlled the heating-up temperature of gas-heated chamber 201 by the feedback information of thermo detector 203.
Further, the heating tube of gas-heated chamber 201 is preferably coil pipe.
Alleged gas-heated chamber 201 parameters are controlled by controller 202, and controller 202 can be temperature programme controller 202, and it can set certain heating-up temperature, and sets certain heating rate.Gas-heated chamber 201 temperature regulating range in the present embodiment are: 0～1200 ℃, be preferably room temperature～1200 ℃, and alleged room temperature refers generally to 25 ℃.
Alleged aspirator 5, is mainly used in providing suction power.Wherein aspirator 5 is preferably smoking machine, and smoking machine can provide suction power, can also control and suck flow, especially control enter the airshed of material filling pipe 4, and set suction streams spirogram.The discharge diagrams such as that smoking machine can arrange is bell, rectangle and triangle, wherein bell discharge diagram can make the state that adjuvant purges in thermal current for a long time, is conducive to the low component of content to detect.
In addition, aspirator 5 also can adopt other negative-pressure sucking source to replace smoking machine suction power is provided, as adopted vacuum pump.
In the present embodiment, gas overflow device 3 comprises that the first run-down pipe 301 and the second run-down pipe 302, the first run-down pipes 301 that are successively set on pipeline pass through T-valve 3021 connecting tubes by electromagnetic switching valve connecting tube and aspirator 5, the second run-down pipes 302.
Preferably, the exhaust end of the exhaust end of the first run-down pipe 301 and described the second run-down pipe 302 is all installed one-way flow orifice valve 303.
Wherein, alleged electromagnetic switching valve is controlled by aspirator 5, when aspirator 5 is smoke extractor, smoke extractor sends suction action, smoke extractor syringe carries out the suction action of a 2s according to setting degree and the every 60s of parameter or 30s, valve will switch to air-flow guiding smoking machine direction, after suction action stops, valve will be switched to emptying direction, and air-flow emits the form to discard.When aspirator 5 is vacuum pump or other devices, can increase a current controling signal, for controlling better solenoid valve, switch.
Alleged three-way pipe is when guaranteeing that the air-flow being provided by source of the gas 1 is greater than smoking machine suction airstream, and unnecessary air-flow overflows through one-way flow orifice valve 303 thus.
When alleged one-way flow orifice valve 303 is mainly used in guaranteeing that air-flow that source of the gas 1 provides is greater than smoking machine suction airstream, unnecessary air flow energy overflows thus, and particularly, when the non-constant value of suction tolerance, this design is necessary more.One-way flow orifice valve 303 effectively guarantees, when smoking machine suction action stops, not have air-flow and flowed into by exhaust end, thereby is purged to the material in material filling pipe 4.
In the present embodiment, also comprise cooling pipe, aspirator 5 is smoking machine, and cooling pipe is arranged between described material filling pipe 4 and smoking machine.
Alleged cooling pipe 6 is in order to protect smoking machine, effectively thermal current is cooled to below 100 ℃.The length of cooling pipe 6 can have the needs of actual set to set, no matter the cooling pipe 6 of any length, its effect all should be consistent, and the length of tube of therefore lowering the temperature does not limit at this.
In the present embodiment, also comprise flow control valve 102 and flowmeter 103, flow control valve 102 and flowmeter 103 are set in turn in the outlet side of source of the gas 1.
The range of adjustment that alleged flow valve regulates is 0～3L/min, and the advantage of this scope has, and can cover: (1) Smoldering rate is no more than 1mL/min; (2) ISO puffing regimens, mean air flow speed 17.5mL/s, maximum instantaneous gas velocity is no more than 30mL/s; (3) Canadian puffing regimens (in degree of depth puffing regimens a kind of), mean air flow speed 27.5mL/s, it is 2.88L/min that maximum instantaneous gas velocity is no more than 48mL/s(); (4) other possible degree of depth puffing regimens.
This range of adjustment arranges, and is in order to simulate in cigarette aspiration procedure, various possible main flume gas velocities.For the needs that guarantee to detect, aggregate supply tolerance must be identical with actual institute air demand, or slightly large.And from angle easy and simple to handle, than the required airshed of reality, be more conducive to guarantee slightly greatly the stability of detection system and testing result.
It should be noted that, in the present embodiment, the testing sample being filled in material filling pipe 4 can have for absorption the testing sample of essence or functional additive, as: microcapsules, sorbing material, filter stick, filter stick center line etc.
Interior caliber and the cigarette filter stick of material filling pipe 4 approach.Can setting range be: diameter 3～25mm.It arranges and requires is less than the diameter of ramuscule cigarette (5.5mm), thicker than the diameter of cigar (20mm), to guarantee that various cigarettes all can put into material filling pipe 4 and detect.
By the source of the gas arranging, heating arrangement, gas overflow device, material filling pipe and the virtual smoking process of smoking machine, testing sample is positioned in material filling pipe, smoking machine provides suction power by pipeline to source of the gas, gas is by heating arrangement and gas overflow mechanism, according to specified amount and assigned temperature, entering material filling pipe reacts with testing sample, by this device, can simulate people's smoking, unreacted testing sample and reacted testing sample are measured, thereby the stability that in mensuration cigarette, adjuvant is deposited and the Performance Detection that burns and sucks the rate of transform in process, efficient quick, be conducive to improve the quality of cigarette.
The utility model be take the embodiment of method of check smoking material desorption rate and is described as example.
The method of the check smoking material desorption rate that the present embodiment provides, comprises the following steps:
A, in material filling pipe, load testing sample, to being filled with the material filling pipe of described testing sample, weigh.
Testing sample can be microcapsules, sorbing material, filter stick, filter stick center line etc.
B, gas enter material filling pipe, reaction.
C, reaction finish, and described material filling pipe is weighed.
Material filling pipe is together weighed together with remaining reacted testing sample in it.
D, according to the weighing results of steps A and step C, calculate desorption rate.
Alleged desorption rate, can draw by desorption rate, and the account form of desorption rate is: setting the weight that steps A weighs is m1, and the weight that after setting desorption and completing, step B weighs is m2, m1 and m2(" m1-m2 ") obtain after subtracting each other be desorption rate.
Wherein, also comprise: aspirator provides suction power to source of the gas, and gas heats by heating arrangement between steps A and step B, unnecessary gas is discharged by gas overflow device.
In the present embodiment, for simulation cigarette the best burns and sucks process, therefore designing heating arrangement heating rate is 0～10 ℃/ms, and temperature range is 0～1200 ℃;
Material filling pipe prolongs airflow direction temperature and controls and be: after 600～1200 ℃ of burning cones, combustion wire 2mm to 200～50 ℃ of filter sticks, 30～80 ℃ of filter sticks.
In general, cigarette is divided into two sections of burning zone and filter rod segments, in combustion process, the central point burning cone temperature of burning is the highest, form a combustion wire, so the present embodiment is when temperature after burning cone with the position for burning, for reaching optimum efficiency, unnecessary gas is discharged by gas overflow device, thereby this material filling pipe is not when being affected by ambient atmos, carries out the temperature of material filling pipe control with the best combustion temperature of tobacco.
Burning cone temperature is 600～1200 ℃, and burning cone is burning cone temperature～200 ℃ to the temperature of 2mm after combustion wire, after combustion wire 2mm to 200～50 ℃ of filter sticks, 30～80 ℃ of filter sticks.The range of adjustment of this temperature, to burn and suck in order to simulate cigarette the Different Effects that in process, material is subject to, as adjuvant is placed in filter stick, adjuvant is placed in pipe tobacco and in burning cone position, adjuvant be placed in pipe tobacco but after burning cone position, by different heated conditions, can guarantee that adjuvant can burn down at the temperature range internal combustion of appointment complete.
By the source of the gas arranging, heating arrangement, gas overflow device, material filling pipe and the virtual smoking process of smoking machine, testing sample is positioned in material filling pipe, smoking machine provides suction power by pipeline to source of the gas, gas is by heating arrangement and gas overflow mechanism, according to specified amount and assigned temperature, entering material filling pipe reacts with testing sample, by this device, can simulate people's smoking, unreacted testing sample and reacted testing sample are measured, thereby the stability that in mensuration cigarette, adjuvant is deposited and the Performance Detection that burns and sucks the rate of transform in process, efficient quick, be conducive to improve the quality of cigarette.
The above, above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (7)
1. a device of checking smoking material desorption rate, is characterized in that, comprises the source of the gas, heating arrangement, gas overflow device, material filling pipe and the aspirator that by pipeline, connect successively;
Described aspirator, for providing suction power to source of the gas, so that gas is by described heating arrangement and described material filling pipe;
Described heating arrangement, for heated air;
Described material filling pipe, for loading testing sample;
Described gas overflow device, for unnecessary gas in discharge line.
2. the device of check smoking material desorption rate according to claim 1, it is characterized in that, described heating arrangement comprises gas-heated chamber, controller and thermo detector, described thermo detector is arranged at the outlet side of described gas-heated chamber, and described controller is controlled the heating-up temperature of described gas-heated chamber according to the feedback information of described thermo detector.
3. the device of check smoking material desorption rate according to claim 2, is characterized in that, the heating tube of described gas-heated chamber is coil pipe.
4. the device of check smoking material desorption rate according to claim 1, it is characterized in that, described gas overflow device is included on pipeline and prolongs the first run-down pipe and the second run-down pipe that airflow direction sets gradually, described the first run-down pipe is connected with described aspirator with pipeline by electromagnetic switching valve, and described the second run-down pipe is connected with pipeline by T-valve.
5. the device of check smoking material desorption rate according to claim 4, is characterized in that, the exhaust end of the exhaust end of described the first run-down pipe and described the second run-down pipe is all installed one-way flow orifice valve.
6. the device of check smoking material desorption rate according to claim 1, is characterized in that, also comprises cooling pipe, and described aspirator is smoking machine, and described cooling pipe is arranged between described material filling pipe and described smoking machine.
7. the device of check smoking material desorption rate according to claim 1, is characterized in that, also comprises flow control valve and flowmeter, and described flow control valve and flowmeter are set in turn in the outlet side of described source of the gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122950.7U CN203772673U (en) | 2014-03-18 | 2014-03-18 | Device for testing desorption rate of cigarette material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122950.7U CN203772673U (en) | 2014-03-18 | 2014-03-18 | Device for testing desorption rate of cigarette material |
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| Publication Number | Publication Date |
|---|---|
| CN203772673U true CN203772673U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420122950.7U Expired - Lifetime CN203772673U (en) | 2014-03-18 | 2014-03-18 | Device for testing desorption rate of cigarette material |
Country Status (1)
| Country | Link |
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| CN (1) | CN203772673U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884621A (en) * | 2014-03-18 | 2014-06-25 | 广东中烟工业有限责任公司 | Device and method for detecting desorption rate of cigarette materials |
| CN110850010A (en) * | 2019-11-13 | 2020-02-28 | 云南中烟工业有限责任公司 | Simulation determination method for migration of benzene series substances in filter stick to cigarette smoke |
| CN110879265A (en) * | 2019-11-07 | 2020-03-13 | 云南中烟工业有限责任公司 | Method for simulating and measuring heat migration quantity of formaldehyde and acetaldehyde to smoke in cigarette blasting beads |
-
2014
- 2014-03-18 CN CN201420122950.7U patent/CN203772673U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884621A (en) * | 2014-03-18 | 2014-06-25 | 广东中烟工业有限责任公司 | Device and method for detecting desorption rate of cigarette materials |
| CN103884621B (en) * | 2014-03-18 | 2017-05-31 | 广东中烟工业有限责任公司 | A kind of device and method of inspection smoking material desorption rate |
| CN110879265A (en) * | 2019-11-07 | 2020-03-13 | 云南中烟工业有限责任公司 | Method for simulating and measuring heat migration quantity of formaldehyde and acetaldehyde to smoke in cigarette blasting beads |
| CN110850010A (en) * | 2019-11-13 | 2020-02-28 | 云南中烟工业有限责任公司 | Simulation determination method for migration of benzene series substances in filter stick to cigarette smoke |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |