CN104165882B - Raman spectrometer including gas input device - Google Patents
Raman spectrometer including gas input device Download PDFInfo
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- CN104165882B CN104165882B CN201410439281.0A CN201410439281A CN104165882B CN 104165882 B CN104165882 B CN 104165882B CN 201410439281 A CN201410439281 A CN 201410439281A CN 104165882 B CN104165882 B CN 104165882B
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Abstract
The present invention provides a kind of Raman spectrometer including gas input device, belong to field of optical equipment, including 4 input ports and the valve island being connected with 4 input ports, 4 input ports are that the valve island includes 4 solenoid valves for being passed through the C3H8 ports of purge gas, the SAMPLE ports for being passed through gas to be detected, the ZERO ports for being passed through Zero calibration gas and the span port for being passed through calibrating gas.This includes the Raman spectrometer of gas input device using the structure of 4 input ports, and the multiple gases that can be passed through at the same time including gas to be detected are easy to operate, effectively increase the efficiency that gas is passed through, and correspondingly improve the efficiency of gas detection.
Description
Technical field
The present invention relates to field of optical equipment, in particular to the Raman spectrometer including gas input device.
Background technology
The Raman spectrometer generally only input port for detection gas is, it is necessary to which frequent transitions are passed through currently on the market
Gas, it is troublesome in poeration, it is inefficient.
The content of the invention
It is an object of the invention to provide the Raman spectrometer including gas input device, to solve to be currently used for detection gas
Generally an only input terminal is, it is necessary to which frequent transitions are passed through gas to the Raman spectrometer of body, and troublesome in poeration, inefficient asks
Topic.
What the present invention was realized in：
This gas input device includes 4 input ports and the valve island being connected with 4 input ports, and 4 input ports are
For being passed through the C3H8 ports of purge gas, the SAMPLE ports for being passed through gas to be detected, for being passed through Zero calibration gas
The ZERO ports of body and the span port for being passed through calibrating gas, valve island include 4 solenoid valves.This gas input device is
The part of Raman spectrometer, during operation, is passed through purge gas to clean pipeline, then from ZERO ends from C3H8 ports first
Mouth is passed through Zero calibration gas, is finally passed through calibrating gas and gas to be detected from span port and SAMPLE ports.This is to be measured
Gas is mainly mud logging gas.
Further, purge gas is nitrogen, and Zero calibration gas is 99.99% high pure nitrogen, and calibrating gas is first
Alkane, ethane, propane or carbon monoxide.Nitrogen is a kind of inert gas, and property is stablized, is very suitable for making purge gas, is used for
Pipeline is cleaned, and the nitrogen of high-purity is also commonly used for calibration under test gas；And methane, ethane, propane or carbon monoxide etc. are marked
The spectral detection beneficial under test gas of quasi- gas.
Further, SAMPLE ports are provided with glass fiber filter and stainless steel sintering filtering.Both filters
It is powerful, 10 μm of dust granule can be more than with filter sizes, to purify gas to be detected, prevents the dust granule in gas
Interference detection results.
This gas input device can be passed through including gas to be detected at the same time using the structure of 4 input ports
Multiple gases, it is easy to operate, the efficiency that gas is passed through is effectively increased, correspondingly improves the efficiency of gas detection.
This Raman spectrometer for including above-mentioned gas input unit further includes spectrum maker, and spectrum maker is included along one
Laser, maker body and the spectrum acquisition head that straight line is set gradually, maker body interior are provided with optical fiber, optical fiber
Inside is provided with through hole, and the both ends of maker body are both provided with the sapphire sheet passed through for laser and gas-tpe fitting, two tracheaes
Connector is connected with through hole respectively, and the one end of one of gas-tpe fitting away from through hole is connected with valve island, and spectrum acquisition head is connected with
For showing the computer of gaseous spectrum.After calibrating gas and gas to be detected are flowed out from valve island, into the through hole of optical fiber,
Under the irradiation of laser, the Raman spectrum of under test gas is received by spectrum acquisition head passes to computer, then by computer
Generation is shown.
Further, compression ring is provided with sapphire sheet, makes sapphire sheet keep fixing, ensures spectrum projection.
Further, "O"-ring is provided between compression ring and sapphire sheet, to strengthen sealing effect, reduces light
Loss, ensures the projection of spectrum.
Further, maker body is made of aluminium alloy, and surface carries out aoxidizing black processing.Aluminium alloy density is small, plasticity
Good, processing is simple.The black processing of surface oxidation can effective antirust.
Further, it is connected with mass flow controller between gas-tpe fitting and valve island.Mass flow controller can be by gas
Body flow control is in 1.4-1.6L/min, so that gas detection result optimizes.
Further, selector valve is connected between mass flow controller and valve island, selector valve is connected with digital pressure gauge.
Digital pressure gauge can show access into the pressure of the gas before maker body, so that user is regulated and controled.
Further, Raman spectrometer is provided with outlet port, so that the exhaust gas inside equipment can discharge.
This Raman spectrometer for including above-mentioned gas input unit is additionally provided with spectrum maker, efficiently can detect and show
The Raman spectrum of surveyed gas to be detected is shown.
Brief description of the drawings
Fig. 1 is the connection diagram of gas input device provided in an embodiment of the present invention and spectrum maker；
Fig. 2 is the structure diagram of spectrum maker provided in an embodiment of the present invention；
Fig. 3 is the structure diagram of maker body provided in an embodiment of the present invention；
Fig. 4 is the assembling schematic diagram of maker body provided in an embodiment of the present invention.
Embodiment
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
Refering to Fig. 1-4, this gas input device includes 4 input ports and the valve island that is connected with 4 input ports, 4
Input port is for being passed through the C3H8 ports of purge gas, the SAMPLE ports for being passed through gas to be detected, for being passed through
The ZERO ports of Zero calibration gas and the span port for being passed through calibrating gas, valve island include 4 solenoid valves.This gas
Input unit is the part of Raman spectrometer, during operation, is passed through purge gas to clean pipeline, so from C3H8 ports first
Zero calibration gas is passed through from ZERO ports afterwards, is finally passed through calibrating gas and gas to be detected from span port and SAMPLE ports
Body.
Purge gas is nitrogen, and Zero calibration gas is 99.99% high pure nitrogen, and calibrating gas is methane, ethane, third
Alkane or carbon monoxide.Nitrogen is a kind of inert gas, and property is stablized, is very suitable for making purge gas, for cleaning pipeline, and
The nitrogen of high-purity is also commonly used for calibration under test gas；And the calibrating gas such as methane, ethane, propane or carbon monoxide is beneficial to
The spectral detection of under test gas.
SAMPLE ports are provided with glass fiber filter and stainless steel sintering filtering.Both filter functions are powerful,
10 μm of dust granule can be more than with filter sizes, to purify gas to be detected, prevent the dust granule Interference Detection in gas
As a result.
This gas input device can be passed through including gas to be detected at the same time using the structure of 4 input ports
Multiple gases, it is easy to operate, the efficiency that gas is passed through is effectively increased, correspondingly improves the efficiency of gas detection.
This Raman spectrometer for including above-mentioned gas input unit further includes spectrum maker, and spectrum maker is included along one
Laser 500, maker body 100 and the spectrum acquisition first 610 that straight line is set gradually, the inside of maker body 100 are set
There is optical fiber 400, the inside of optical fiber 400 is provided with through hole, and the both ends of maker body 100 are both provided with the sapphire passed through for laser
Piece 210 and gas-tpe fitting 300, two gas-tpe fittings 300 are connected with through hole respectively, and one of gas-tpe fitting 300 is away from through hole
One end be connected with valve island, spectrum acquisition first 610 is connected with the computer 600 for showing gaseous spectrum.Calibrating gas and treat
After detection gas are flowed out from valve island, into the through hole of optical fiber 400, under the irradiation of laser 500, the Raman of under test gas
Spectrum is received by spectrum acquisition first 610 and passes to computer 600, is then shown by the generation of computer 600.
Maker body 100 is straight square column, and square column includes left attached column 110 and right attached column 120, left attached column 110
It is bolted between right attached column 120.This connection mode makes the assembly or disassembly of maker body 100 become very square
Just it is quick.
100 both ends of maker body are both provided with optical fiber clamp 200, and optical fiber clamp 200 is provided with mounting hole, sapphire sheet
210 are arranged in mounting hole.This set make it that the installation of sapphire sheet 210 is more firm, while causes maker body 100
Structure more stablize.
Compression ring 230 is provided with sapphire sheet 210, makes sapphire sheet 210 keep fixing, ensures spectrum projection.
"O"-ring 220 is provided between compression ring 230 and sapphire sheet 210, to strengthen sealing effect, reduces light
Loss, ensures the projection of spectrum.
Maker body 100 is internally provided with two optical fiber compression bars 410 and two optical fiber clamping pads 420.This set
So that optical fiber 400 keeps straight tightening state, ensure the high efficiency of transmission of light and gas.
Maker body 100 is made of aluminium alloy, and surface carries out aoxidizing black processing.Aluminium alloy density is small, and plasticity is good, processing
Simply.The black processing of surface oxidation can effective antirust.
Mass flow controller is connected between gas-tpe fitting 300 and valve island.Mass flow controller can be by gas flow
Control is in 1.4-1.6L/min, so that gas detection result optimizes.
Selector valve is connected between mass flow controller and valve island, selector valve is connected with digital pressure gauge.Digital pressure
Table can show access into the pressure of the gas before maker body 100, so that user is regulated and controled.
Raman spectrometer is provided with outlet port, so that the exhaust gas inside equipment can discharge.
Gas-tpe fitting 300 for output gas is connected with BYPASS ports, so as to the discharge of under test gas.
This Raman spectrometer for including above-mentioned gas input unit is additionally provided with spectrum maker, efficiently can detect and show
The Raman spectrum of surveyed gas to be detected is shown.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of Raman spectrometer including gas input device, it is characterised in that generated including gas input device and spectrum
Device, the gas input device include 4 input ports and the valve island that be connected with 4 input ports, 4 input ports for for
It is passed through the C3H8 ports of purge gas, the SAMPLE ports for being passed through gas to be detected, for being passed through Zero calibration gas
ZERO ports and the span port for being passed through calibrating gas, the valve island include 4 solenoid valves, the spectrum maker bag
The laser set gradually along a straight line, maker body and spectrum acquisition head are included, the maker body interior is provided with
Optical fiber, the inside of the optical fiber are provided with through hole, and the both ends of the maker body are both provided with the sapphire sheet passed through for laser
And gas-tpe fitting, two gas-tpe fittings are connected with the through hole respectively, one of gas-tpe fitting one end and institute away from through hole
Shu Fa islands connect, and the spectrum acquisition head is connected with the computer for showing gaseous spectrum, and the maker body interior is set
Two optical fiber compression bars and two optical fiber clamping pads are equipped with, to ensure that the optical fiber keeps straight tightening state.
2. the Raman spectrometer according to claim 1 including gas input device, it is characterised in that the sapphire sheet
On be provided with compression ring.
3. the Raman spectrometer according to claim 2 including gas input device, it is characterised in that the compression ring and
"O"-ring is provided between the sapphire sheet.
4. the Raman spectrometer according to claim 1 including gas input device, it is characterised in that the maker sheet
Body is made of aluminium alloy, and surface carries out aoxidizing black processing.
5. the Raman spectrometer according to claim 1 including gas input device, it is characterised in that the gas-tpe fitting
Mass flow controller is connected between the valve island.
6. the Raman spectrometer according to claim 5 including gas input device, it is characterised in that the mass flow
Selector valve is connected between controller and the valve island, the selector valve is connected with digital pressure gauge.
7. the Raman spectrometer according to claim 1 including gas input device, it is characterised in that the Raman spectrum
Instrument is provided with outlet port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410439281.0A CN104165882B (en) | 2014-08-29 | 2014-08-29 | Raman spectrometer including gas input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410439281.0A CN104165882B (en) | 2014-08-29 | 2014-08-29 | Raman spectrometer including gas input device |
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| CN104165882A CN104165882A (en) | 2014-11-26 |
| CN104165882B true CN104165882B (en) | 2018-04-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AT522216A1 (en) * | 2019-02-21 | 2020-09-15 | Omicron Electronics Gmbh | Analyzing gas using Raman spectroscopy |
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| CN2862016Y (en) * | 2006-01-17 | 2007-01-24 | 杭州电子科技大学 | Gas concentration detecting instrument takes photon crystal optical fibre as air chamber |
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| JP2008164584A (en) * | 2006-12-08 | 2008-07-17 | Fujifilm Corp | Raman spectrometer and raman spectral method using same |
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| CN101927243A (en) * | 2009-06-18 | 2010-12-29 | 安徽蓝盾光电子股份有限公司 | Cleaning device of plug-in smoke gas on-line monitor probe |
| CN102096155B (en) * | 2011-01-14 | 2013-12-04 | 南开大学 | Mie scattering-based structural unit for optical fiber attenuator and application thereof |
| CN102183506B (en) * | 2011-02-21 | 2012-08-15 | 上海大学 | Trace material detection device based on surface enhanced Raman scattering optical fiber probe |
| CN102359955A (en) * | 2011-07-29 | 2012-02-22 | 北京航空航天大学 | Raman gas detection apparatus based on open microstructured optical fiber |
| CN102359995B (en) * | 2011-08-03 | 2014-10-15 | 东北制药集团股份有限公司 | Detection method for dextroisomer in levocarnitine |
| DE102012104721B4 (en) * | 2012-05-31 | 2021-06-10 | Endress+Hauser Conducta Gmbh+Co. Kg | Solid body, turbidity sensor and methods for adjusting, calibrating or for functional testing of a turbidity sensor |
| CN103100539B (en) * | 2013-01-31 | 2015-04-15 | 东南大学 | Device and method for decontaminating surface of optical element |
| CN103308515A (en) * | 2013-05-01 | 2013-09-18 | 安徽昊源化工集团有限公司 | Online analysis system and method for detection of CO gas at ammonia synthesis inlet |
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|---|---|---|---|---|
| CN1644539A (en) * | 2004-12-13 | 2005-07-27 | 天津大学 | Precasting method of optical fibre with microstructure |
| CN2862016Y (en) * | 2006-01-17 | 2007-01-24 | 杭州电子科技大学 | Gas concentration detecting instrument takes photon crystal optical fibre as air chamber |
| CN101105447A (en) * | 2007-05-18 | 2008-01-16 | 燕山大学 | Gas cell device for photon crystal optical fibre gas sensing |
| CN102279154A (en) * | 2011-06-23 | 2011-12-14 | 天津大学 | Hollow photon crystal optical fiber-based optical fiber-connected low-pressure gas chamber device |
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Inventor after: Yang Yangang Inventor after: Chen Da Inventor after: Song Limei Inventor before: Li Ping Inventor before: Wang Qiang Inventor before: Cheng Dikui |
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