CN106596196B - A kind of lift cigarette side flow smoke aerosol Quick Acquisition cover and its detection method - Google Patents
A kind of lift cigarette side flow smoke aerosol Quick Acquisition cover and its detection method Download PDFInfo
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- CN106596196B CN106596196B CN201611162431.3A CN201611162431A CN106596196B CN 106596196 B CN106596196 B CN 106596196B CN 201611162431 A CN201611162431 A CN 201611162431A CN 106596196 B CN106596196 B CN 106596196B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N2001/2264—Sampling from a flowing stream of gas with dilution
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Abstract
A kind of lift cigarette side flow smoke aerosol Quick Acquisition cover of the present invention and its detection method, including sequentially connected acquisition cover, electric lifting platform and base support from top to bottom；Acquisition cover includes the cylinder cover that air inlet is arranged and the funnel cover for being sealedly connected on cylinder cover upper end；Funnel cover exhaust pipe is arranged in funnel cover upper end, and pre-dilution casing is arranged on the outside of funnel cover exhaust pipe, and pre-dilution casing shoe and the sealing of funnel cover outer surface are fixed, and pre-dilution gas air inlet is arranged in bottom；The smoking pipeline with acquisition cover coaxial arrangement is fixed on base support；Smoking pipeline extends through electric lifting platform and cylinder cover bottom head covers centre bore, and connects smoking machine；Cigarette is fixed and coaxial vertically-mounted by cigarette clamper and pipeline of smoking；For electric lifting platform for driving acquisition cover integrally to move down, decrease speed is equal to cigarette Smoldering rate, guarantees that the import distance of cigarette combustion cone and funnel cover exhaust pipe is 15-20mm.
Description
Technical field
The present invention relates to cigarette studying technological domain, specially a kind of lift cigarette side flow smoke aerosol Quick Acquisition
Cover and its detection method.
Background technique
Cigarette burning includes two kinds of combustion states, i.e. suction fuel process and smoldering process.Suction fuel process can be from cigarette end shape
At main flume aerosol, and smoldering process can then generate a large amount of side-stream smoke aerosol near cigarette combustion cone, the mistake
The columnar materials smoldering process such as journey and Buddhist perfume, santal, fragrant incense are similar.
Main flume and side-stream smoke by it is a series of the processes such as mix, be aged after will form environment flue gas, cause interior
Quality of air environment decline.In addition, smoking influence caused by human health is always the hot spot of medical domain research.To cigarette
For production industry, Reasonable Regulation And Control cigarette harmfulness ingredient realizes that reducing tar and reducing harm is also one of the target that cigarette industry is pursued.
Existing research shows continuity of the side-stream smoke due to generating process, is the significant contributor that environment flue gas is formed.
Side-stream smoke aerosol sub-micron, micron level particle size are smaller, but to components such as polycyclic aromatic hydrocarbon (PAHs), heavy metals
With stronger enrichment, load, carrying capacity, toxicity is stronger, and negatively affecting caused by human health can not be ignored.It can be seen that
Trapping analysis is carried out to cigarette side flow smoke aerosol, there is important reference value to medicine, environmental protection, tobacco business.
At present for the research of cigarette side flow smoke aerosol particulate matter be concentrated mainly on its concentration components detection and it is old
Change behavior etc..Generation, acquisition, enriching apparatus of the fish tail cover as side-stream smoke are mostly used, " YC/T 185-2004 cigarette
The measurement of tar and nicotine in side-stream smoke " tar and nicotine detection method, step etc. in side-stream smoke have been made it is detailed
Regulation, the also over-borrowing method in standard in view of this of side-stream smoke particle concentration detection at present.Chinese invention patent prospectus
101923035 A of CN discloses a kind of detection method of side-stream smoke aerosol particle object concentration, and CN102854041 A is disclosed
A kind of capture method of side-stream smoke aerosol particle object concentration.Above-mentioned two patent is all made of fish tail cover as side-stream smoke gas
The acquisition cover of colloidal sol.Especially 101923035 A of patent CN, fish tail cover and particulate matter dilution system is coupled together, opposite side
Flowing flue gas aerosol Concentration Testing has important reference value.
But due to fish tail cover common-size are as follows: bottom oblong openings size 100mm × 20mm, after variable diameter,
Elongated cylinder exhaust pipe internal diameter 30mm, this structure interior surface product is bigger, increases particulate matter and fish tail cover wall face
Making contact probability.In addition, being placed in since cigarette is horizontal at the position about 15-20mm of fish tail cover bottom, the side-stream smoke of formation
Streamline direction of travel is that straight up, and the horizontal direction of cigarette is orthogonal intersects, and side-stream smoke aerosol is caused easily to touch
It hits and causes damages on wall surface.
Following problem: 1, environment must be noted that using this fish tail cover structure and cigarette arrangement in actually detected process
Air will have higher flow stability, be not allow for biggish flow perturbation, the side-stream smoke streamline that otherwise horizontal cigarette generates
Disorder, and easily escape from fish tail cover bottom；2, further, since fish tail cover lower part uses unenclosed construction, then must assure that
Surrounding air has higher cleanliness when test, prevents the particulate matter in surrounding air from interfering to testing result；3, due to
Nearby flow rate of ambient air presses standard requirements general control in 200 ± 30mm/s, fish tail cover bottom oblong openings area to cigarette
100mm × 20mm=2000mm2, then in cover air mass flow be then it is certain, according to flow=cross sectional flow rate × cross section
For product it is found that flow is 24L/min, air mass flow is larger, and control difficulty is big.And the elongated exhaust pipe length of fish tail cover is about
400mm, internal diameter are about 20mm, then flowing time=exhaust pipe length/flow velocity of the particulate matter in fish tail cover, flowing time is about
For 1.25s, the time is relatively long, easily causes particulate matter adherency, ageing, causes detection error；4, in addition, fish tail cover wall face temperature
It spends lower, side-stream smoke particulate matter is caused easily to be condensate on wall surface；5, due to the limitation of the design of current commercial smoking machine,
The horizontal mode of cigarette is generallyd use in actual test, since cigarette length is gradually shortened, is needed by the way of mobile fish tail cover
The side-stream smoke aerosol streamline generated is enabled by fish tail cover central axis, otherwise easily particulate matter to be caused to strike in time
On fish tail cover wall face, detection error is caused；6, since side-stream smoke aerosol particle object concentration is higher, directly progress high concentration inspection
It is more serious that survey may result in condensation agglomeration of the particulate matter in pipeline, particulate matter detecting instrument overload etc., cause compared with
Big detection error.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of lift cigarette side flow smoke aerosol and quickly adopts
Collection cover and its detection method, cost is relatively low, easy to operate, practical function, and environment resistant interference performance is strong.
The present invention is to be achieved through the following technical solutions:
A kind of lift cigarette side flow smoke aerosol Quick Acquisition cover, including sequentially connected acquisition cover from top to bottom
Body, electric lifting platform and base support；The acquisition cover includes that the cylinder cover of air inlet is arranged and is sealedly connected on cylinder
The funnel cover of cover upper end；Funnel cover exhaust pipe is arranged in funnel cover upper end, and the outer sheath of funnel cover exhaust pipe is equipped with
Pre-dilution casing, pre-dilution casing shoe and the sealing of funnel cover outer surface are fixed, and bottom is provided with pre-dilution gas air inlet；Institute
The smoking pipeline with acquisition cover coaxial arrangement is fixed on the base support stated；Smoking pipeline one end extends through electric up-down
Platform and cylinder cover bottom head covers centre bore, the other end connect smoking machine；Cigarette is fixed by cigarette clamper and smoking pipeline
And it is coaxial vertically-mounted；For the electric lifting platform for driving acquisition cover integrally to move down, decrease speed is equal to cigarette
Smoldering rate guarantees that the distance between import of cigarette combustion cone and funnel cover exhaust pipe is 15-20mm.
Preferably, the air inlet on cylinder cover is the symmetrically arranged multiple tangential swirl air inlets of sidewall bottom, cylinder
Porous cowling panel is fixed in the middle part of cover；The inserting end of smoking pipeline runs through the center for being placed in porous cowling panel.
Preferably, pre-dilution casing includes the cylinder casing being set in outside funnel cover exhaust pipe, and is connected to cylindrical sleeve
Pre-dilution casing hopper vertebral body structure on pipe；The outlet end of funnel cover exhaust pipe is located at pre-dilution casing hopper vertebral body structure
It is interior；Two symmetrical pre-dilution gas air inlets, the outlet setting of pre-dilution casing hopper vertebral body structure is arranged in cylinder casing bottom
There is pre-dilution cannula exit threeway.
Further, pre-dilution casing is made of antistatic glass, and outside is covered with insulating layer, and pre-dilution gas air inlet connects
Enter 150-200 DEG C of pure air.
Preferably, the electric lifting platform lower end surface is bolted on the platform of base support, upper surface and circle
Barrel cover body bottom head covers are fixed by the bolt on flange.
Preferably, the lifting speed of electric lifting platform is adjusted by controller, and elevating mechanism is using double hinged scissor-type machines
Structure.
Preferably, cylinder cover and funnel cover are all made of antistatic glass and are made.
Preferably, groove, groove embedded seal ring, sealing ring and smoking are equipped on the inside of cylinder cover bottom head covers centre bore
Pipeline outer wall face is in sealing contact；Smoking pipeline is fixed on base support by fixed cutting ferrule.
A kind of lift cigarette side flow smoke aerosol rapid detection method is covered based on acquisition of the present invention, including
Following steps,
Step 1, cigarette Smoldering rate is measured, obtains cigarette Smoldering rate v；
Step 2, funnel cover is opened, the cigarette lighted is inserted vertically into cigarette clamper, cigarette clamper is fixed on
Smoking pipe road, with hose connection smoking machine smoking pipeline；
Step 3, funnel cover is installed, adjusting distance between the import of funnel cover exhaust pipe and cigarette combustion cone is 15-
20mm；
Step 4, cylinder cover inlet charge flow is controlled, so that cigarette combustion cone surface velocity meets 200 ± 30mm/
The standard flow rate requirement of s；
Step 5, pre-dilution casing flow is controlled, so that pre-dilution cannula exit flow is cylindrical cap after dilution mixing
N times of body inlet charge flow, positive real number n are required extension rate；
Step 6, electric lifting platform controller parameter is adjusted, the movement velocity for declining it is equal to cigarette Smoldering rate v；
Step 7, the sample flow in pre-dilution cannula exit is connected into jet stream diluter air inlet pipeline, realizes the dilution of setting
Multiple, and quickly detected by aerosol detector.
Preferably, in step 5, pre-dilution casing air inlet is 150-200 DEG C of pure air.
Compared with prior art, the invention has the following beneficial technical effects:
By the way that cigarette to be clamped to placement vertically in the present invention, the side-stream smoke aerosol streamline formed it into is more stable,
Compared with the horizontal scheme of cigarette, cover bottom area on the one hand can be reduced, on the other hand straight up due to streamline, with volume
Cigarette constantly burns, and side-stream smoke aerosol streamline, laterally there is no displacement, is more convenient for collecting aerosol in cigarette.By electronic
Lifting platform realize function of auto-lift guarantee acquisition cover in funnel cover exhaust pipe import and cigarette combustion cone between it is constant away from
From, so that residence time of the side-stream smoke aerosol inside cover is reduced, by tracking the sampling of cigarette combustion cone position in time,
Reach quickly flowing in turn, weak wall surface adheres to, the good sample effect of weak coalescence and weak ageing effect.In addition, by effluent
Flue gas carries out pre-dilution, also can satisfy the requirement of subsequent dilution equipment, improves cigarette side flow smoke aerosol particulate matter
And the columnar materials such as Buddhist perfume (or spice) glow the accuracy of granular material discharged detection.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the test connection of acquisition cover described in present example.
Fig. 2 is that present invention acquisition covers A-A ' to swirling inlet sectional top view.
Fig. 3 is that present invention acquisition covers B-B ' to porous cowling panel sectional top view.
In figure: 1, pre-dilution casing；2, pre-dilution gas feed；3, funnel cover；4, porous cowling panel；5, tangential swirl
Air inlet；6, electric lifting platform；7, sealing ring；8, base support；9, double hinged scissor-type mechanisms；10, smoking pipeline；11, solid
Determine cutting ferrule；12, bolt；13, cylinder cover；14, cigarette clamper；15, funnel cover exhaust pipe；16, pre-dilution casing hopper
Vertebral body structure；17, pre-dilution cannula exit threeway.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
A kind of lift cigarette side flow smoke aerosol Quick Acquisition cover of the present invention, as shown in Figure 1 comprising top acquisition
Cover, lower part electric lifting platform 6 and base support 8.6 lower end surface of electric lifting platform is bolted on base support 8
Platform on, 6 upper surface of electric lifting platform is fixed together with 13 bottom head covers of cylinder cover by flange bolt；The acquisition
Cover is made of lower part cylinder cover 13 and upper funnel cover 3, cylinder cover 13 and funnel cover 3 between pass through flange and connect
It connects, cigarette is vertically arranged to fix position, the suction inside the funnel cover 3 by cigarette clamper 14 and smoking pipeline 10
Smoke pipe road 10 extends through porous cowling panel 4 and bottom head covers centre bore in the cylinder cover 13, and is fixed cutting ferrule 11
It is fixed on the platform of base support 8.There are pre-dilution casing 1, the pre-dilution casing 1 on the outside of the funnel cover exhaust pipe 15
Bottom and 3 outer surface tight bond of funnel cover, there are two symmetrical pre-dilution gas air inlets 2 for bottom.
As shown in Fig. 2, 13 sidewall bottom of cylinder cover, there are four symmetrically arranged tangential swirl air inlet 5, cover uses
The antistatic glass material of weak adsorbent makes；Porous cowling panel 4 is fixed among the cylinder cover 13, as shown in Figure 3.
Fluted, groove embedded seal ring 7 on the inside of the bottom head covers centre bore of cylinder cover 13,7 size of sealing ring and suction
10 caliber of smoke pipe road is related, and sealing ring 7 and smoking 10 outside wall surface of pipeline are in close contact.
Distance is kept constant between 15 import of cigarette combustion cone and funnel cover exhaust pipe；The peace of cigarette and its pipeline 10 of smoking
Dress axis is overlapped with acquisition cover central axis.And by cigarette combustion cone close to the import 15-20mm of funnel cover exhaust pipe 15
At position, aerosol stabilization is kept to rapidly enter in funnel cover exhaust pipe.
Pre-dilution casing 1 is made of the glass material of high temperature resistant, antistatic, and hot-air, jacket exterior are passed through in casing
It is covered with insulating layer, cannula exit is provided with pre-dilution cannula exit threeway.
The lifting speed of electric lifting platform 6 is adjusted by controller, drives acquisition cover integrally to move down, lower reduction of speed
Degree is related with cigarette Smoldering rate, and elevating mechanism therein is using double hinged scissor-type mechanisms 9.
The present invention before testing, is measured cigarette Smoldering rate, controls 6 descending motion speed of electric lifting platform, makes
It drives funnel cover 3 as cigarette burning is declined with constant speed, to guarantee the import and combustion of funnel cover exhaust pipe 15
Burning distance between cone is 15-20mm, to meet the requirement of cigarette testing standard.
Funnel cover 3 uses weakly stable glass material, funnel cover 3 big mouthfuls of bore 100mm, depth 100mm, exhaust pipe pipe
Diameter 10mm, exhaust pipe length are about 50mm.Diameter 100mm in cylindrical cap body, height 50mm, using the antistatic glass of weak adsorbent
Material.Cylinder cover 13 uses weakly stable glass material, and there are four tangential swirl air inlet 5, air inlets to pass through for bottom symmetrical distribution
After porous cowling panel 4, air velocity distribution can be made to stablize, air inlet uniformity and be sufficiently mixed, air inlet total flow 1L/min.It flows herein
Under amount, and under above-mentioned acquisition cover structural condition, cigarette combustion cone airflow on surface flow velocity=flow/cross-sectional area, flow velocity is
212.3mm/s, meets the standard flow rate requirement of 200 ± 30mm/s, and conical cover body exhaust velocity in pipes can achieve 28cm/s, flow
Dynamic time 0.14s, it is seen that flow velocity has increased slightly, and for flowing time much smaller than the 1.25s in fish tail cover exhaust pipe, which can be more
Inhibit the ageing reunion behavior of aerosol well, realizes quickly detection.The outlet of funnel cover exhaust pipe 15 can export continuously
Stable 1L/min sample flow, into carrying out pre-dilution in pre-dilution casing hopper vertebral body structure 16.
Pre-dilution casing 1 is made of cylinder casing and 16 two parts of pre-dilution casing hopper vertebral body structure, total height
100mm, wherein cylindrical sleeve pipe range 60mm, internal diameter 20mm；The pre-dilution casing hopper vertebral body structure 16 connected in cylinder casing is high
Spend 40mm.Pre-dilution casing air inlet is 150-200 DEG C of pure air, can preferably avoid side-stream smoke aerosol at a temperature of this
It is condensed on wall surface.
Flow can require to change according to pre-dilution multiple in pre-dilution casing 1.The DI-1000 series 8 produced with Dekati
For times jet stream diluter, which is about 5L/min.Therefore adjustment pre-dilution casing hot air flowrate is 9L/
Min is sufficiently mixed in pre-dilution casing hopper cone structure 16 with the 1L/min sample flow of funnel cover exhaust pipe discharge, real
Now pre- 10 times of dilutions, the aerosol after dilution pass through pre-dilution cannula exit threeway 17, and a part is entered with 5L/min flow penetrates
Enter aerosol detector after stream thinner, remainder is emptied and disposed by exhaust gas absorption device absorption.Passing through
After Dekati diluter sufficiently dilutes, up to the detection effect for reaching 80 times of dilution, on this basis, the dilution of series multistage jet stream
Higher extension rate then can be achieved in device.
13 bottom swirling inlet of cylinder cover is after the porous cowling panel 4 in top, it is ensured that flow field near cigarette combustion cone
Stability with higher guarantees that side-stream smoke aerosol can be stablized and rapidly enters funnel cover exhaust pipe 15.
Specifically, please referring to Fig. 1, Fig. 2 and Fig. 3, in conjunction with attached drawing, the present invention is to realize side-stream smoke aerosol dilution 100
It is again embodiment.
(1) before testing, cigarette Smoldering rate is measured, cigarette Smoldering rate v is obtained, transported as electric lifting platform 6
The important referential data of dynamic speed；
(2) control 5 charge flow rate of tangential swirl air inlet is 1L/min, gases used that steel cylinder air can be used, or is used
The pure air after drying, oil removing, dust removal and filtration that air compressor machine is sent out, the side-stream smoke aerosol generated as cigarette are taken
Band gas.Under 3 structural condition of funnel cover that the present invention uses, cigarette combustion cone surface velocity is 212.3mm/s, meets 200
The standard flow rate requirement of ± 30mm/s.
(3) 1 flow 11.5L/min of control pre-dilution casing, it is gases used that steel cylinder air can be used, or given using air compressor machine
The pure air after drying, oil removing, dust removal and filtration out first passes through air preheater in advance and is heated to 150 DEG C or so；So
Pre-dilution cannula exit flow is 12.5L/min after dilution mixing, realizes 12.5 times of dilutions.
(4) bolt between conical cover body is unloaded, funnel cover 3 is opened, the cigarette lighted is inserted vertically into cigarette folder
In holder 14, cigarette clamper 14 is fixed on smoking pipeline 10, and smoking pipeline 10 sequentially passes through porous 4 center of cowling panel vertically
After hole, 13 bottom head covers centre bore sealing ring 7 of cylinder cover, the upper and lower end-face central hole of electric lifting platform 6, with fixed cutting ferrule 11
It is fixed on 8 Platform center hole location of base support, with hose connection smoking machine smoking pipeline, market is can be used in smoking machine used
Upper common commercial smoking machine, can also be used stepper motor guide rail piston type electricity smoking machine, electronic suction pump type smoking machine etc., drop
Low testing cost；
(5) rubber seal can be used in 13 bottom head covers centre bore sealing ring 7 of cylinder cover, and outer rim passes through the side such as bonding
Formula is fixed in the port recess of center, and inner edge and smoking pipeline 10 are in close contact, can be by applying vaseline on smoking 10 surface of pipeline
Etc. modes realize the free to slide of cover；
(6) funnel cover 3 is installed, adjusting distance between the 3 exhaust pipe import of funnel cover and cigarette combustion cone is 15-
20mm, cross sectional flow rate meets the standard flow rate requirement of 200 ± 30mm/s at this；
(7) 6 controller parameter of electric lifting platform is adjusted, its movement velocity v '=cigarette Smoldering rate v is made；
(8) the serial 8 times of diluter air inlet pipe of DI-1000 for accessing Dekati production in pre-dilution cannula exit threeway 17
Road then may be implemented the effect of 100 times of dilution, both meet diluter charge flow rate requirement, sufficient pre-dilution also may be implemented,
In order to quickly detect.Present invention may also apply to the detections of the columnar materials smoldering process aerosol discharge such as Buddhist perfume, santal, fragrant incense
Deng.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of lift cigarette side flow smoke aerosol Quick Acquisition cover, which is characterized in that including being sequentially connected from top to bottom
Acquisition cover, electric lifting platform (6) and base support (8)；
The acquisition cover includes the cylinder cover (13) that air inlet is arranged and the leakage for being sealedly connected on cylinder cover (13) upper end
Bucket cover body (3)；Funnel cover exhaust pipe (15) are arranged in funnel cover (3) upper end, are arranged on the outside of funnel cover exhaust pipe (15)
Have pre-dilution casing (1), pre-dilution casing (1) bottom end and the sealing of funnel cover (3) outer surface are fixed, pre-dilution casing (1) bottom
Portion is provided with pre-dilution gas air inlet (2)；
The smoking pipeline (10) with acquisition cover coaxial arrangement is fixed on the base support (8)；Smoking pipeline (10) one
End extends through electric lifting platform (6) and cylinder cover (13) bottom head covers centre bore, and the other end connects smoking machine；Cigarette passes through
Cigarette clamper (14) is fixed and coaxial vertically-mounted with smoking pipeline (10)；
For the electric lifting platform (6) for driving acquisition cover integrally to move down, decrease speed is equal to cigarette Smoldering rate,
Guarantee that the distance between import of cigarette combustion cone and funnel cover exhaust pipe (15) is 15-20mm.
2. a kind of lift cigarette side flow smoke aerosol Quick Acquisition cover according to claim 1, which is characterized in that circle
Air inlet on barrel cover body (13) is the symmetrically arranged multiple tangential swirl air inlets (5) of sidewall bottom, in cylinder cover (13)
Portion is fixed with porous cowling panel (4)；The inserting end of smoking pipeline (10) runs through the center for being placed in porous cowling panel (4).
3. a kind of lift cigarette side flow smoke aerosol Quick Acquisition cover according to claim 1, which is characterized in that pre-
Dilution casing (1) includes being set in the cylinder casing of funnel cover exhaust pipe (15) outside, and be connected to pre- dilute in cylinder casing
Release casing hopper vertebral body structure (16)；The outlet end of funnel cover exhaust pipe (15) is located at pre-dilution casing hopper vertebral body structure
(16) in；Two symmetrical pre-dilution gas air inlets (2), pre-dilution casing hopper vertebral body structure (16) is arranged in cylinder casing bottom
Outlet be provided with pre-dilution cannula exit threeway (17).
4. a kind of lift cigarette side flow smoke aerosol Quick Acquisition cover according to claim 3, which is characterized in that pre-
Dilution casing (1) is made of antistatic glass, and outside is covered with insulating layer, and pre-dilution gas air inlet (2) accesses 150-200 DEG C
Pure air.
5. a kind of lift cigarette side flow smoke aerosol Quick Acquisition cover according to claim 1, which is characterized in that institute
It states electric lifting platform (6) lower end surface to be fixed on the platform of base support (8) by bolt (12), upper surface and cylinder cover
(13) bottom head covers are fixed by the bolt (12) on flange.
6. a kind of lift cigarette side flow smoke aerosol Quick Acquisition cover according to claim 1, which is characterized in that electricity
The lifting speed of dynamic lifting platform (6) is adjusted by controller, and elevating mechanism is using double hinged scissor-type mechanisms (9).
7. a kind of lift cigarette side flow smoke aerosol Quick Acquisition cover according to claim 1, which is characterized in that circle
Barrel cover body (13) and funnel cover (3) are all made of antistatic glass and are made.
8. a kind of lift cigarette side flow smoke aerosol Quick Acquisition cover according to claim 1, which is characterized in that circle
Groove, groove embedded seal ring (7), sealing ring (7) and smoking pipeline are equipped on the inside of barrel cover body (13) bottom head covers centre bore
(10) outside wall surface is in sealing contact；Smoking pipeline (10) passes through fixed cutting ferrule (11) and is fixed on base support (8).
9. a kind of lift cigarette side flow smoke aerosol rapid detection method, which is characterized in that based on described in claim 1
Acquisition cover, includes the following steps,
Step 1, cigarette Smoldering rate is measured, obtains cigarette Smoldering rate v；
Step 2, funnel cover (3) are opened, the cigarette lighted is inserted vertically into cigarette clamper (14), cigarette clamper (14)
It is fixed in smoking pipeline (10), with hose connection smoking machine smoking pipeline；
Step 3, funnel cover (3) are installed, adjusting distance between funnel cover (3) exhaust pipe import and cigarette combustion cone is 15-
20mm；
Step 4, cylinder cover inlet charge flow is controlled, so that cigarette combustion cone surface velocity meets 200 ± 30mm/s's
Standard flow rate requirement；
Step 5, pre-dilution casing (1) flow is controlled, so that pre-dilution cannula exit flow is cylindrical cap after dilution mixing
N times of body inlet charge flow, positive real number n are required extension rate；
Step 6, electric lifting platform (6) controller parameter is adjusted, the movement velocity for declining it is equal to cigarette Smoldering rate v；
Step 7, the sample flow in pre-dilution cannula exit is connected into jet stream diluter air inlet pipeline, realizes the dilution times of setting
Number, and quickly detected by aerosol detector.
10. a kind of lift cigarette side flow smoke aerosol rapid detection method according to claim 9, feature exist
In in step 5, pre-dilution casing air inlet is 150-200 DEG C of pure air.
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| CN109374362B (en) * | 2018-12-19 | 2021-03-19 | 杭州人安检测科技有限公司 | Detection equipment and detection method for indoor volatile pollutants |
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