CN108072610B - Detection device in tobacco pipe - Google Patents
Detection device in tobacco pipe Download PDFInfo
- Publication number
- CN108072610B CN108072610B CN201810046108.2A CN201810046108A CN108072610B CN 108072610 B CN108072610 B CN 108072610B CN 201810046108 A CN201810046108 A CN 201810046108A CN 108072610 B CN108072610 B CN 108072610B
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- CN
- China
- Prior art keywords
- sampling
- condenser
- airtight chamber
- ultraviolet light
- optical fiber
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- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 241000208125 Nicotiana Species 0.000 title claims abstract description 12
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 12
- 238000005070 sampling Methods 0.000 claims abstract description 52
- 239000000779 smoke Substances 0.000 claims abstract description 9
- 239000013307 optical fiber Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 230000003595 spectral effect Effects 0.000 abstract description 3
- 210000003437 trachea Anatomy 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 6
- 238000007689 inspection Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000002211 ultraviolet spectrum Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model provides a detection device in tobacco pipe, includes tobacco pipe sampling device and detection and analysis device, tobacco pipe sampling device including solid fixed ring, solid fixed ring on dismantle and be connected with the sampling rifle, the sampling rifle through the sampling trachea with detection and analysis device's airtight chamber is connected, the one end of airtight chamber is provided with ultraviolet emitter, and the other end is provided with sampling optic fibre, sampling optic fibre is connected with spectral detection appearance. The invention realizes an accurate smoke tube internal detection device which can be used for field detection by reasonably designing the ultraviolet lens group.
Description
Technical Field
The invention relates to the technical field of smoke tube detection devices, in particular to a smoke tube internal detection device.
Background
Flue gas detection in the tobacco pipe is an indispensable link in the environmental protection detection work, and present tobacco pipe detects mainly to adopt the ultraviolet spectrum detection method, but present ultraviolet spectrum detection device's structure is too huge, is unsuitable simple outdoor witnessed inspections, and flue gas detection in the tobacco pipe is different from other detections again, and its witnessed inspections ' degree of accuracy can be higher than the laboratory far away, and present witnessed inspections equipment's testing result is not accurate enough, and it is too poor that the scattering leads to detecting in the time of the ultraviolet light-emitting.
Disclosure of Invention
The invention aims to provide a smoke tube internal detection device, which can be used for on-site detection and is accurate through reasonably designing an ultraviolet lens set.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a detection device in tobacco pipe, includes tobacco pipe sampling device and detection and analysis device, tobacco pipe sampling device including solid fixed ring, solid fixed ring on dismantle and be connected with the sampling rifle, the sampling rifle through the sampling trachea with detection and analysis device's airtight chamber is connected, the one end of airtight chamber is provided with ultraviolet emitter, and the other end is provided with sampling optic fibre, sampling optic fibre is connected with spectral detection appearance.
Preferably, the ultraviolet light emitter comprises an ultraviolet light source vertically arranged at the end of the airtight chamber, an emission lens group is arranged in front of the light emitting direction of the ultraviolet light source, and the edge of each lens in the emission lens group is fixedly connected with the inner side wall of the airtight chamber in a sealing manner.
Preferably, the emission lens includes a first condenser lens for condensing incident laser light, a second condenser lens for condensing the laser light emitted from the first condenser lens into parallel light, and a collimator lens for correcting the parallel light, which are sequentially disposed from one end of the ultraviolet light source to the other end.
Preferably, the first condenser lens and the second condenser lens are both provided with a reflective bowl-shaped concave portion on one side facing the laser incidence end, and the bowl mouth diameter of the reflective bowl-shaped concave portion on the first condenser lens is larger than that of the reflective bowl-shaped concave portion on the second condenser lens. The reflecting bowl-shaped depressed part is arranged on one side of the first collecting lens towards the laser incidence end, and the light transmission hole penetrating through the first collecting lens is formed in the center of the reflecting bowl-shaped depressed part.
Preferably, a condenser lens group whose edge is fixedly connected with the airtight chamber in a sealing manner is arranged in front of the incident end of the sampling optical fiber.
Preferably, the condenser lens group comprises a filter lens for filtering stray light, a parallel light collimating lens for collimating scattered ultraviolet light into parallel light, and a condenser lens for converging ultraviolet light to the sampling end of the sampling optical fiber in sequence from one end of the inner cavity of the airtight chamber to one end of the sampling optical fiber, wherein a connecting hole is formed in the center of the condenser lens, and the sampling end of the sampling optical fiber is fixedly connected with the connecting hole.
Preferably, the airtight chamber is internally provided with a steam-type heating pipe.
Preferably, the upper part of the airtight chamber is provided with an air inlet for connecting a sampling air pipe, the lower part of the airtight chamber is provided with an air outlet, and the air outlet is connected with an air pump.
In conclusion, the invention has the following beneficial effects:
the invention has the advantage of high detection precision.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
in the figure:
1-a fixed ring; 2-a sampling gun; 3-sampling the trachea; 4-an airtight chamber; 5-an ultraviolet light emitter; 6-sampling optical fiber; 7-a spectral detector; 5-1-ultraviolet light source; 5-2-an emission lens group; 5-2-1-a first condenser; 5-2-2-second condenser; 5-2-3-collimating mirror; 8-a reflective bowl-shaped recess; 9-light hole; 10-a condenser lens group; 10-1-optical filter; 10-2-parallel light collimating mirror; a 10-3-condenser; 11-a connection hole; 12-steam type heating tube; 13-air outlet; 14-an air inlet; 15-air pump.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the embodiment of the invention includes a smoke tube sampling device and a detection and analysis device, the smoke tube sampling device includes a fixing ring 1 for being clamped in a smoke tube, the fixing ring 1 is detachably connected with a sampling gun 2, the sampling gun 2 is connected with an airtight chamber 4 of the detection and analysis device through a sampling air tube 3, one end of the airtight chamber 4 is provided with an ultraviolet light emitter 5, the other end is provided with a sampling optical fiber 6, and the sampling optical fiber 6 is connected with a spectrum detector 7.
The ultraviolet light emitter 5 comprises an ultraviolet light source 5-1 vertically arranged at the end part of the airtight chamber 4, the ultraviolet light source 5-1 is ultraviolet L ED, an emission lens group 5-2 is arranged in front of the light emitting direction of the ultraviolet light source 5-1, the edge of each lens in the emission lens group 5-2 is fixedly connected with the inner side wall of the airtight chamber 4 in a sealing manner, the emission lens comprises a first condenser 5-2-1 which is arranged from one end of the ultraviolet light source 5-1 to the other end in sequence and used for gathering incident laser, a second condenser 5-2-2 used for re-converging laser emitted from the first condenser 5-2-1 into parallel light, a collimator 5-2-3 used for correcting the parallel light, a first condenser 5-2-1 and a second condenser 5-2-3, a bowl-shaped concave part 8 is arranged on one side of the laser incidence end of the first condenser 5-2-2 towards the laser, the bowl-shaped concave part 8 on the first condenser 5-2-1 is larger in diameter than the bowl-shaped concave part 8 on the bowl-shaped concave part of the bowl-shaped concave part 8 on the first condenser 5-2-1, a bowl-shaped concave part 8 is arranged on one end of the bowl-shaped reflector 5-2-1 and a bowl-shaped optical fiber-optical fiber collection lens 6 used for filtering and a sampling optical fiber-sampling optical fiber, a bowl-sampling optical fiber-sampling optical filter 6 used for filtering and a bowl-sampling optical fiber-sampling optical filter 6 is arranged on the.
The reason why the steam type heating pipe 12 is provided inside the airtight chamber 4 and the resistance type and thermal infrared type heating pipes are not used is to prevent the infrared ray generated by the excessive electric heat from interfering with the detection result. The upper part of the airtight chamber 4 is provided with an air inlet 14 for connecting the sampling air pipe 3, the lower part of the airtight chamber 4 is provided with an air outlet 13, and the air outlet 13 is connected with an air pump 15.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a detection device in tobacco pipe which characterized in that: the device comprises a smoke tube sampling device and a detection and analysis device, wherein the smoke tube sampling device comprises a fixing ring (1), the fixing ring (1) is detachably connected with a sampling gun (2), the sampling gun (2) is connected with an airtight chamber (4) of the detection and analysis device through a sampling air tube (3), one end of the airtight chamber (4) is provided with an ultraviolet light emitter (5), the other end of the airtight chamber is provided with a sampling optical fiber (6), and the sampling optical fiber (6) is connected with a spectrum detector (7); the ultraviolet light emitter (5) comprises an ultraviolet light source (5-1) vertically arranged at the end part of the airtight chamber (4), an emission lens group (5-2) is arranged in front of the light emitting direction of the ultraviolet light source (5-1), and the edge of each lens in the emission lens group (5-2) is fixedly connected with the inner side wall of the airtight chamber (4) in a sealing manner; the transmitting lens comprises a first condenser (5-2-1) for condensing incident laser, a second condenser (5-2-2) for re-converging the laser emitted from the first condenser (5-2-1) into parallel light and a collimator (5-2-3) for correcting the parallel light, wherein the first condenser (5-2-1) for condensing the incident laser, the second condenser (5-2-2) for re-converging the laser emitted from the first condenser (5-2-1) into the parallel light are sequentially arranged from one end to the other end of the ultraviolet light source (5-1); the first condenser (5-2-1) and the second condenser (5-2-2) are both provided with a reflecting bowl-shaped sunken part (8) towards one side of the laser incidence end, and the bowl mouth diameter of the reflecting bowl-shaped sunken part (8) on the first condenser (5-2-1) is larger than that of the reflecting bowl-shaped sunken part (8) on the second condenser (5-2-2); the reflecting bowl-shaped sunken part (8) is formed in one side, facing the laser incidence end, of the first condenser (5-2-1), and a light hole (9) penetrating through the first condenser (5-2-1) is formed in the center of the reflecting bowl-shaped sunken part (8).
2. The apparatus of claim 1, wherein: and a condenser lens group (10) with the edge hermetically and fixedly connected with the airtight chamber (4) is arranged in front of the incident end of the sampling optical fiber (6).
3. The apparatus of claim 2, wherein: the condenser lens group (10) comprises a filter (10-1) for filtering stray light, a parallel light collimating lens (10-2) for collimating scattered ultraviolet light into parallel light and a condenser lens (10-3) for gathering the ultraviolet light to the sampling end of the sampling optical fiber (6) from one end of an inner cavity of the airtight chamber (4) to one end of the sampling optical fiber (6) in sequence, a connecting hole (11) is formed in the center of the condenser lens (10-3), and the sampling end of the sampling optical fiber (6) is fixedly connected with the connecting hole (11).
4. The apparatus of claim 1, wherein: and a steam type heating pipe (12) is arranged in the airtight chamber (4).
5. The apparatus of claim 1, wherein: the upper part of the airtight chamber (4) is provided with an air inlet (14) used for being connected with the sampling air pipe (3), the lower part of the airtight chamber (4) is provided with an air outlet (13), and the air outlet (13) is connected with an air suction pump (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046108.2A CN108072610B (en) | 2018-01-17 | 2018-01-17 | Detection device in tobacco pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046108.2A CN108072610B (en) | 2018-01-17 | 2018-01-17 | Detection device in tobacco pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108072610A CN108072610A (en) | 2018-05-25 |
| CN108072610B true CN108072610B (en) | 2020-07-14 |
Family
ID=62156631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810046108.2A Active CN108072610B (en) | 2018-01-17 | 2018-01-17 | Detection device in tobacco pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108072610B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044492A (en) * | 2019-11-29 | 2020-04-21 | 泸州北方化学工业有限公司 | Device and method for testing concentration of smoke emitted by small-caliber bullet |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202676583U (en) * | 2012-05-31 | 2013-01-16 | 重庆同博测控仪器有限公司 | Light source system of light interference gas detection device |
| CN205317661U (en) * | 2016-01-07 | 2016-06-15 | 杭州禾风环境科技有限公司 | Integration flue gas measuring chamber |
| CN105424635A (en) * | 2016-01-12 | 2016-03-23 | 中绿环保科技股份有限公司 | Ultraviolet spectrum flue gas analyzer |
| CN107044958B (en) * | 2017-03-17 | 2019-05-14 | 哈尔滨工业大学 | A kind of measured oxygen concentration method of the measured oxygen concentration system based on ultraviolet broadband second level absorption spectrum |
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2018
- 2018-01-17 CN CN201810046108.2A patent/CN108072610B/en active Active
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| Publication number | Publication date |
|---|---|
| CN108072610A (en) | 2018-05-25 |
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