CN209513585U - A kind of detection of gas with multiple constituents device - Google Patents
A kind of detection of gas with multiple constituents device Download PDFInfo
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- CN209513585U CN209513585U CN201822136609.8U CN201822136609U CN209513585U CN 209513585 U CN209513585 U CN 209513585U CN 201822136609 U CN201822136609 U CN 201822136609U CN 209513585 U CN209513585 U CN 209513585U
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Abstract
The utility model discloses a kind of detection of gas with multiple constituents devices, comprising: gas absorption cell, light path coupling system, heat-insulation system and crust of the device, the gas absorption cell includes that absorption tank main body, cover board, the first beam path alignment element, the second beam path alignment element and air inlet pipe, the light path coupling system include fiber array, PLC splitter, optical fiber interface and optical path connector.The device by various types of light sources by light path coupling system coupling into single optical fiber, by light to the absorbing state of gas, complete the measurement to multiple gases concentration, the detection of all spectral absorption gases can be applicable in, concentration determination accuracy is high.
Description
Technical field
The utility model relates to gas detection technology fields, and in particular to a kind of detection of gas with multiple constituents device.
Background technique
When carrying out gas detection, gas gas absorption cell is generally used, however in existing TDLAS technology, it can only
A kind of gas of real-time detection, therefore that there are detection efficiencies is low, mixed gas detection is difficult, the narrow problem of usage scenario.
Utility model content
The purpose of this utility model is to provide a kind of detection of gas with multiple constituents device for above-mentioned status, above-mentioned to solve
Problem.
The technical solution adopted in the utility model are as follows: a kind of detection of gas with multiple constituents device, including gas absorption cell, optical path
Coupled system, heat-insulation system and crust of the device, the gas absorption cell, the light path coupling system, heat-insulation system setting
In described device shell, the gas absorption cell connect with the light path coupling system and is arranged on the heat-insulation system,
The gas absorption cell includes absorbing tank main body, cover board, the first beam path alignment element, the second beam path alignment element and air inlet pipe,
A groove is opened up on the absorption tank main body to splice as gas uptake zone, the cover board and the absorption tank main body, is made described
Gas uptake zone forms an enclosure space, and the first beam path alignment element and the second beam path alignment element are embedded described
On the inner wall for absorbing tank main body, and the first beam path alignment element and the second beam path alignment element are located at a straight line
On, the air inlet pipe is arranged in the cover board and protrudes into the gas uptake zone, and the light path coupling system includes optical fiber array
Column, PLC splitter, optical fiber interface and optical path connector, the fiber array are coupled with the PLC splitter, the PLC branch
Device is connect with the first beam path alignment element, the optical fiber interface be arranged on described device shell and with the fiber array
Connection, the optical path connector are arranged on described device shell and connect with the second beam path alignment element.
The effect of the utility model is: the device by various types of light sources by light path coupling system coupling into single optical fiber, lead to
Light is crossed to the absorbing state of gas, the measurement to multiple gases concentration is completed, the detection of all spectral absorption gases can be applicable in,
Concentration determination accuracy is high.
Detailed description of the invention
Fig. 1 show the structural schematic diagram of detection of gas with multiple constituents device provided by the utility model；
Fig. 2 show the structural schematic diagram of gas absorption cell in Fig. 1.
Specific embodiment
The detection of gas with multiple constituents device of the utility model is introduced with reference to the accompanying drawing:
It as shown in Figure 1 and Figure 2, is a kind of detection of gas with multiple constituents device provided by the utility model comprising gas absorbs
Pond 1, light path coupling system 2, heat-insulation system 3 and crust of the device 4, it is the gas absorption cell 1, the light path coupling system 2, described
Heat-insulation system 3 is arranged in described device shell 4, and the gas absorption cell 1 connect and is arranged in the light path coupling system 2
On the heat-insulation system 3.
The gas absorption cell 1 includes absorbing tank main body 11, cover board 12, the first beam path alignment element 13, the second optical path standard
Straight element 14 and air inlet pipe 15, a groove are opened up on the absorptions tank main body 11 as gas uptake zone 111, the cover board 12 and
The absorption tank main body 11 splices, and the gas uptake zone 111 is made to form an enclosure space, the first beam path alignment element 13
And the second beam path alignment element 14 is embedded on the inner wall for absorbing tank main body 11, and the first beam path alignment element
13 and the second beam path alignment element 14 be located at on a straight line, the air inlet pipe 15 is arranged in the cover board 12 and protrudes into institute
It states in gas uptake zone 111.
In this present embodiment, the inner wall for absorbing tank main body 11 is stepped, the cover board 12 and the absorption cell master
The part that body 11 abuts is arranged to, and the absorption tank main body 11 and the lid matched ladder-like with the absorptions tank main body 11
Sealing rubber ring 112 is equipped between plate 12.
The absorption tank main body 11 is provided with fixing screwed hole 113.
The light path coupling system 2 includes fiber array 21, PLC splitter 22, optical fiber interface 23 and optical path connector 24,
The fiber array 21 is coupled with the PLC splitter 22, and the PLC splitter 22 connects with the first beam path alignment element 13
It connects, the optical fiber interface 23 is arranged on described device shell 4 and connect with the fiber array 21, the optical path connector 24
It is arranged on described device shell 4 and is connect with the second beam path alignment element 14.
The heat-insulation system 3 includes temperature sensor 31, semiconductor cooler 32, refrigerator driving mechanism and central processing
Device, the semiconductor cooler 32 are arranged between the absorption tank main body 11 and described device shell 4, the temperature sensor
31 are arranged on the semiconductor cooler 32, the temperature sensor 31, the refrigerator driving mechanism and the centre
Device connection is managed, the semiconductor cooler 32 is connect with the refrigerator driving mechanism.
In this present embodiment, the semiconductor cooler 32 and the contact surface and and described device for absorbing tank main body 11
Heat-conducting silicone grease is coated on the contact surface of shell 4.
Described device shell 4 is made of metal material.
Working principle: mixed gas corresponds to multiple gases wavelength, and light array 21 can realize multichannel light simultaneous transmission, pass through
Multichannel is coupled into single optical fiber by the coupling of light array 21 and PLC splitter 22, i.e., the light of multiple wavelength is in an optical fiber
Transmission；As long as the light wave inputted simultaneously is more than enough, corresponding gas concentration can be measured, that is, realize and examined while multicomponent gas
It surveys.
The device by various types of light sources by light path coupling system coupling into single optical fiber, by light to the absorption feelings of gas
Condition completes the measurement to multiple gases concentration, can be applicable in the detection of all spectral absorption gases, and concentration determination accuracy is high.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. a kind of detection of gas with multiple constituents device, characterized in that it comprises: gas absorption cell, light path coupling system, heat preservation system
System and crust of the device, the gas absorption cell, the light path coupling system, the heat-insulation system are arranged in described device shell
Interior, the gas absorption cell connect with the light path coupling system and is arranged on the heat-insulation system, the gas absorption cell
Including absorbing tank main body, cover board, the first beam path alignment element, the second beam path alignment element and air inlet pipe, the absorption tank main body
On open up a groove as gas uptake zone, the cover board and absorptions tank main body splicing form the gas uptake zone
One enclosure space, the first beam path alignment element and the second beam path alignment element are embedded in the absorption tank main body
On wall, and the first beam path alignment element and the second beam path alignment element are located at on a straight line, and the air inlet pipe is worn
It set on the cover board and protrudes into the gas uptake zone, the light path coupling system includes fiber array, PLC splitter, light
Fine interface and optical path connector, the fiber array are coupled with the PLC splitter, the PLC splitter and first light
The connection of road collimating element, the optical fiber interface are arranged on described device shell and connect with the fiber array, the optical path
Connector is arranged on described device shell and connect with the second beam path alignment element.
2. detection of gas with multiple constituents device according to claim 1, which is characterized in that the fiber array can realize multichannel
Multichannel is coupled into single optical fiber by the coupling of the fiber array and the PLC splitter by light simultaneous transmission, i.e., multiple
The light of wavelength transmits in an optical fiber.
3. detection of gas with multiple constituents device according to claim 2, which is characterized in that the heat-insulation system includes that temperature passes
Sensor, semiconductor cooler, refrigerator driving mechanism, the semiconductor cooler are arranged in the absorption tank main body and the dress
It sets between shell, the temperature sensor is arranged on the semiconductor cooler.
4. detection of gas with multiple constituents device according to claim 3, which is characterized in that it is described absorb tank main body inner wall be in
It is ladder-like, the cover board be arranged to the part that abuts of absorption tank main body it is matched ladder-like with the absorption tank main body,
And sealing rubber ring is set between the absorption tank main body and the cover board.
5. detection of gas with multiple constituents device according to claim 4, which is characterized in that the semiconductor cooler with it is described
Absorb tank main body contact surface and on the contact surface of described device shell be coated with heat-conducting silicone grease.
6. detection of gas with multiple constituents device according to claim 5, which is characterized in that described device shell uses metal material
Matter is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822136609.8U CN209513585U (en) | 2018-12-19 | 2018-12-19 | A kind of detection of gas with multiple constituents device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822136609.8U CN209513585U (en) | 2018-12-19 | 2018-12-19 | A kind of detection of gas with multiple constituents device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209513585U true CN209513585U (en) | 2019-10-18 |
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ID=68195642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822136609.8U Active CN209513585U (en) | 2018-12-19 | 2018-12-19 | A kind of detection of gas with multiple constituents device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209513585U (en) |
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2018
- 2018-12-19 CN CN201822136609.8U patent/CN209513585U/en active Active
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