CN106769871A - A kind of high performance gas absorption cell - Google Patents
A kind of high performance gas absorption cell Download PDFInfo
- Publication number
- CN106769871A CN106769871A CN201611259615.1A CN201611259615A CN106769871A CN 106769871 A CN106769871 A CN 106769871A CN 201611259615 A CN201611259615 A CN 201611259615A CN 106769871 A CN106769871 A CN 106769871A
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- Prior art keywords
- absorption cell
- air chamber
- high performance
- cell body
- transparent air
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- 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
- G01N21/03—Cuvette constructions
- G01N21/0303—Optical path conditioning in cuvettes, e.g. windows; adapted optical elements or systems; path modifying or adjustment
-
- 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
- G01N21/03—Cuvette constructions
- G01N21/0332—Cuvette constructions with temperature control
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- 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 invention discloses a kind of high performance gas absorption cell, including absorption cell body, absorption cell body is internally provided with transparent air chamber, one end of transparent air chamber is provided with heating ring, and the bottom of transparent air chamber is provided with protractor, and the two ends of transparent air chamber are provided with double-layer seal rings, temperature display port is provided with protractor, the bottom of temperature display port is provided with control flume, and one end of absorption cell body is provided with standby rotation circle, and what standby rotation was enclosed is internally provided with some aperture joints.The present invention is a kind of high performance gas absorption cell, the size of rational selection light path, detection platform can efficiently be built, tail optical fiber output can flexibly constitute the absorption cell of different light paths, double-layer seal can preferably prevent gas from leaking, it is ensured that the accuracy and safe operation of test, while can be carried out controlling at any time to temperature, pressure in test process, operating efficiency is effectively raised, it is very convenient.
Description
Technical field
The present invention relates to a kind of absorption cell, more particularly to a kind of high performance gas absorption cell.
Background technology
Gas absorption cell include polytype, have traditional White White pond, Herriott Maurice Herriotts pond, matrix type with
And the structure and principle of the absorption cell such as their modified, its development is swashed in tunable semiconductor based on optical gas absorbance pond
Answering in light device absorption spectroscopy techniques (Tunable DiodeLaser Absorption Spectroscopy, TDLAS) field
With and development, according to the growth requirement of TDLAS technologies, current gas absorption cell is provided with long light path, miniaturization, easy to operate, height
Stability and the simultaneously development trend of measurement multiple gases, hair of the bibliography optical gas absorbance pond in absorption spectroscopy techniques
Exhibition and application, TDLAS technologies were developed rapidly in recent years, and the gas detecting system based on the technique construction has highly sensitive
The advantages of degree, high accuracy, fast reaction, it is widely used to the necks such as gas detection, industrial stokehold, discharge of pollutant sources detection
Domain, is strongly releasing high performance gas absorption cell, particularly Herriott ponds, to comply with the hair in market both at home and abroad at present
Exhibition, long path cell be mainly used in AIR POLLUTION STUDY, environmental monitoring, gas purity analysis, industrial processes monitoring,
The field such as discharge gas analysis and oil exploration geological logging process monitoring, by Shockproof base, pond body, concave mirror, plane
Speculum, window, standard fiber optic connector, gas inlet and outlet, heating tape, temperature sensor and pressure sensor etc. are constituted, by pond
Body Shockproof base is arranged in instrument box, and under test gas enter gas cell by gas feed, is discharged by outlet, and light is by treating
Spectrometer analysis are entered by optical fiber after surveying gas, absorption spectrum is reduced compared to original background spectrum, according to Lambert-
Beer absorption laws measure the concentration of gas, and order of reflection of the light in pond body depends on pond body length, optical path length and phase
The optical design of pass.
Still there are many not enough places on the basis of the technical conditions of existing gas absorption cell, gas absorption cell is made
It is the core devices of infrared gas detection technology, suitable light path size can not be reasonably selected when using, causes the standard of test
True property declines, and the closure simultaneously for air chamber is not strong, and gas leakage is caused sometimes, there is certain potential safety hazard, tail
Fibre output does not adapt to different light path absorption cells, very inconvenience, while in the middle of the process in test, temperature and pressure are all
It is not easy to be controlled, causes the structure of test to be forbidden, need to repeatedly test, increase the working time, reduces operating efficiency.
The content of the invention
The technical problem to be solved in the present invention is the defect for overcoming prior art, there is provided a kind of high performance gas absorption cell.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
A kind of high performance gas absorption cell of the present invention, including absorption cell body, the absorption cell body are internally provided with
Transparent air chamber, one end of the transparent air chamber is provided with heating ring, and the bottom of the transparent air chamber is provided with protractor, described
The two ends of bright air chamber are provided with double-layer seal rings, and temperature display port, the temperature display end are provided with the protractor
The bottom of mouth is provided with control flume, and one end of the absorption cell body is provided with standby rotation circle, and it is interior that the standby rotation is enclosed
Portion is provided with some aperture joints, and what the standby rotation was enclosed is internally provided with rotary shaft, and the side of the standby rotation circle sets
It is equipped with inlet suction port.
Used as a preferred technical solution of the present invention, the bottom of the absorption cell body is provided with firm banking, described
The avris of absorption cell body is provided with some support columns.
As a preferred technical solution of the present invention, pressure device, the inlet suction port are provided with the inlet suction port
Side be provided with light source collimater.
Used as a preferred technical solution of the present invention, the standby rotation circle passes through rotary shaft activity with absorption cell body
Connection.
Used as a preferred technical solution of the present invention, the heating ring is electrically connected with protractor.
Compared with prior art, beneficial effects of the present invention are as follows：
The present invention is a kind of high performance gas absorption cell, the size of rational selection light path, can efficiently build detection flat
Platform, this product is formed using special collimation lens assembling, and tail optical fiber output can flexibly constitute the absorption cell of different light paths, double
Layer sealing can preferably prevent gas from leaking, it is ensured that the accuracy and safe operation of test, while in test process to temperature
Pressure can be carried out controlling at any time, while also replaceable different light path interface, effectively raises the accuracy rate of test, this
It is reasonable in design, it is simple to operate, it is convenient and practical, operating efficiency is effectively raised, it is very convenient.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, with reality of the invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is partial structural diagram of the invention；
Fig. 3 is internal structure schematic diagram of the invention；
In figure：1st, absorption cell body；2nd, transparent air chamber；3rd, support column；4th, standby rotation circle；5th, pressure device；6th, light source is accurate
Straight device；7th, inlet suction port；8th, mounting seat；9th, protractor；10th, heating ring；11st, aperture joint；12nd, rotary shaft；13rd, temperature shows
Show port；14th, control flume；15th, double-layer seal rings.
Specific embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment 1
As Figure 1-3, the present invention provides a kind of high performance gas absorption cell, including absorption cell body 1, absorption cell body
1 is internally provided with transparent air chamber 2, and one end of transparent air chamber 2 is provided with heating ring 10, the bottom of transparent air chamber 2 is provided with temperature
Degree device 9, the two ends of transparent air chamber 2 are provided with double-layer seal rings 15, temperature display port 13, temperature are provided with protractor 9
The bottom of display port 13 is provided with control flume 14, and one end of absorption cell body 1 is provided with standby rotation circle 4, standby rotation circle 4
Be internally provided with some aperture joints 11, standby rotation circle 4 is internally provided with rotary shaft 12, the side of standby rotation circle 4
It is provided with inlet suction port 7.
Further, the bottom of absorption cell body 1 is provided with firm banking 8, and the avris of absorption cell body 1 is provided with some
Support column 3, firm banking 8 and support column 3 can make whole test keep stabilization during test, it is ensured that test it is accurate
Property.
Pressure device 5 is provided with the inlet suction port 7, the side of inlet suction port 7 is provided with light source collimater 6, by pressure
Power device 5 understands the pressure in test process, and light source collimater 6 causes collimated light source light due to factors such as collimated light source manufacture installations
The initial position of axle is uncertain, needs collimation light source optical axis to point to positioning adjustment.
Standby rotation circle 4 is flexibly connected with absorption cell body 1 by rotary shaft 12, and standby rotation circle 4 passes through rotary shaft 12
The replaceable different aperture joint 11 of rotation is carried out to adapt to different light path absorption cells, it is practical for standby and replacing.
Heating ring 10 is electrically connected with protractor 9, heating control can be carried out to heating ring 10 by temperature 9, simple to operate
It is convenient, can control at any time.
Specifically, the present invention is during use, mounting seat 8 ensures the stabilization in test process with support column 3, can
Import gas in the connection of inlet suction port 7 carries out testing and debugging by pressure device 5, can be understood by pressure device 5 and protractor 9 and surveyed
Temperature and pressure during examination, while temperature adjusting can be carried out to heating ring 10 by the control flume 14 on protractor 9, carry
Test quality high and accuracy rate, can be sealed when test by double-layer seal rings 15, prevent gas leakage, in test
Aperture joint 11 in the middle of process on available backup rotation circle 4 carries out rotation and changes different aperture joints 11 by rotary shaft 12
It is very convenient to test different light paths.
The present invention is a kind of high performance gas absorption cell, the size of rational selection light path, can efficiently build detection flat
Platform, this product is formed using special collimation lens assembling, and tail optical fiber output can flexibly constitute the absorption cell of different light paths, double
Layer sealing can preferably prevent gas from leaking, it is ensured that the accuracy and safe operation of test, while in test process to temperature
Pressure can be carried out controlling at any time, while also replaceable different light path interface, effectively raises the accuracy rate of test, this
It is reasonable in design, it is simple to operate, it is convenient and practical, operating efficiency is effectively raised, it is very convenient.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, it still may be used
Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic.
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in of the invention
Within protection domain.
Claims (5)
1. a kind of high performance gas absorption cell, including absorption cell body (1), it is characterised in that the absorption cell body (1) it is interior
Portion is provided with transparent air chamber (2), and one end of the transparent air chamber (2) is provided with heating ring (10), the bottom of the transparent air chamber (2)
Portion is provided with protractor (9), and the two ends of the transparent air chamber (2) are provided with double-layer seal rings (15), on the protractor (9)
Temperature display port (13) is provided with, the bottom of the temperature display port (13) is provided with control flume (14), the absorption cell
One end of body (1) is provided with standby rotation circle (4), and standby rotation circle (4) is internally provided with some aperture joints
(11), standby rotation circle (4) is internally provided with rotary shaft (12), the side of standby rotation circle (4) be provided with into
Gas joint (7).
2. a kind of high performance gas absorption cell according to claim 1, it is characterised in that the absorption cell body (1)
Bottom is provided with firm banking (8), and the avris of the absorption cell body (1) is provided with some support columns (3).
3. a kind of high performance gas absorption cell according to claim 1, it is characterised in that set on the inlet suction port (7)
Pressure device (5) is equipped with, the side of the inlet suction port (7) is provided with light source collimater (6).
4. a kind of high performance gas absorption cell according to claim 1, it is characterised in that standby rotation circle (4) with
Absorption cell body (1) is flexibly connected by rotary shaft (12).
5. a kind of high performance gas absorption cell according to claim 1, it is characterised in that the heating ring (10) and temperature
Device (9) is electrically connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259615.1A CN106769871A (en) | 2016-12-30 | 2016-12-30 | A kind of high performance gas absorption cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259615.1A CN106769871A (en) | 2016-12-30 | 2016-12-30 | A kind of high performance gas absorption cell |
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| Publication Number | Publication Date |
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| CN106769871A true CN106769871A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611259615.1A Pending CN106769871A (en) | 2016-12-30 | 2016-12-30 | A kind of high performance gas absorption cell |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724928A (en) * | 2018-12-26 | 2019-05-07 | 中煤科工集团重庆研究院有限公司 | Self-calibrating reference gas cell |
| CN109946233A (en) * | 2019-04-17 | 2019-06-28 | 湖南五凌电力科技有限公司 | An oil-resistant sealed laser electronic nose combined detection air chamber |
| CN110736720A (en) * | 2019-11-29 | 2020-01-31 | 阿拓米柯(北京)科技有限公司 | online detector for detecting HF gas content and detection method |
| CN111855611A (en) * | 2020-06-30 | 2020-10-30 | 武汉六九传感科技有限公司 | Optical path adjustable gas absorption cell and gas detection device |
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| AU2012200272A1 (en) * | 2008-11-06 | 2012-02-09 | Li-Cor, Inc. | Gas analyzer |
| CN203551453U (en) * | 2013-07-06 | 2014-04-16 | 尉士民 | Integral heating constant-temperature gas absorption tank |
| CN103827721A (en) * | 2011-09-30 | 2014-05-28 | 富士胶片株式会社 | Lens device, and imaging device fitted with said lens device |
| CN104155241A (en) * | 2014-07-02 | 2014-11-19 | 合肥工业大学 | Long-path optical absorption cell adjustable in optical path |
| CN105403521A (en) * | 2014-09-07 | 2016-03-16 | 优胜光分联营公司 | Gas cell assembly for absorption spectroscopy |
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| CN105911021A (en) * | 2016-05-09 | 2016-08-31 | 上海镭芯微电子有限公司 | Methodand device for detecting various gases based on TDLAS (Tunable Diode Laser Absorption Spectroscopy) |
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Patent Citations (9)
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| CN201000423Y (en) * | 2007-01-29 | 2008-01-02 | 王健 | Optical path measurement adjustable measuring apparatus |
| AU2012200272A1 (en) * | 2008-11-06 | 2012-02-09 | Li-Cor, Inc. | Gas analyzer |
| CN103827721A (en) * | 2011-09-30 | 2014-05-28 | 富士胶片株式会社 | Lens device, and imaging device fitted with said lens device |
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| CN104155241A (en) * | 2014-07-02 | 2014-11-19 | 合肥工业大学 | Long-path optical absorption cell adjustable in optical path |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724928A (en) * | 2018-12-26 | 2019-05-07 | 中煤科工集团重庆研究院有限公司 | Self-calibrating reference gas cell |
| CN109946233A (en) * | 2019-04-17 | 2019-06-28 | 湖南五凌电力科技有限公司 | An oil-resistant sealed laser electronic nose combined detection air chamber |
| CN110736720A (en) * | 2019-11-29 | 2020-01-31 | 阿拓米柯(北京)科技有限公司 | online detector for detecting HF gas content and detection method |
| CN111855611A (en) * | 2020-06-30 | 2020-10-30 | 武汉六九传感科技有限公司 | Optical path adjustable gas absorption cell and gas detection device |
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Application publication date: 20170531 |
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