CN207300877U - A kind of laser on-line gas analysis instrument device - Google Patents
A kind of laser on-line gas analysis instrument device Download PDFInfo
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- CN207300877U CN207300877U CN201721180105.5U CN201721180105U CN207300877U CN 207300877 U CN207300877 U CN 207300877U CN 201721180105 U CN201721180105 U CN 201721180105U CN 207300877 U CN207300877 U CN 207300877U
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Abstract
The utility model discloses a kind of laser on-line gas analysis instrument device, including transmitter unit, receiving unit, backflush unit and process gas, the transmitter unit mainly includes laser module, circuit board module, display unit, focus on convex lens A, lantern ring A and user's flange A, the delivery outlet of the transmitter unit is connected by conduit with receiving unit input port, the receiving unit includes detector module, pressure monitor module, focus on convex lens B, lantern ring B and user's flange B, the transmitter unit and receiving unit are connected by conduit with backflush unit, the backflush unit includes instrument gas entrance, vacuum filter, needle-valve and flowmeter, respectively by isolation window A after laser line focus convex lens A collimations caused by the laser module, received after process gas and isolation window B by detector module.The features such as the utility model can measure multiple gases, also have installation in situ, and measuring speed is fast and is disturbed from background gas.
Description
Technical field
Gas measurement technique field is the utility model is related to, is specially a kind of laser on-line gas analysis instrument device.
Background technology
Laser on-line gas analysis instrument uses tunable diode laser absorption spectroscopy technology (Tunable DiodeLaser
Absorption Spectroscopy, abbreviation TDLAS), obtain gas by analyzing laser by the selective absorbing of gas
Concentration.The difference of it and traditional infrared spectral absorption technology is that lasing spectrum of semiconductor lasers width is absorbed much smaller than gas
The broadening of spectral line.
TDLAS technologies are a kind of high-resolution spectral absorption technologies, and semiconductor laser passes through the light intensity of tested gas to decline
Subtract available Lambert-Beer (Lambert-Beer) law to express：
Iv=Iv,0T (v)=Iv,0exp[-S(T)g(v-v0)PXL]
In formula, Iv,0And IvRespectively represent frequency be v laser light incident when and the light after excess pressure P, concentration X and light path L
By force；S (T) represents the intensity of gas absorption spectrum line；Linear function g (v-v0) characterizes the shape of the absorption line.
Laser gas in-line analyzer is suitable for severe work commonly used to carry out continuous industry process and gas discharge measuring
The various burners of industry environmental applications, such as steel, Aluminum and non-ferrous metal, chemical industry, petrochemical industry, cement, power generation and waste incineration.But
It is that laser on-line gas analysis instrument of the prior art is usually there are measuring speed slowly and the defects of be easy to be disturbed by background gas.
The content of the invention
The technical problems to be solved in the utility model is the defects of overcoming the prior art, there is provided a kind of online gas of laser point
Analyzer device.
In order to solve the above-mentioned technical problem, the utility model provides following technical solution：
A kind of laser on-line gas analysis instrument device of the utility model, including transmitter unit, receiving unit, backflush unit and
Process gas, the transmitter unit mainly include laser module, circuit board module, display unit, focus on convex lens A, lantern ring A and
User's flange A, the side of the laser module are equipped with circuit board module, and the side of the circuit board module is equipped with display list
Member, the opposite side of the laser module are connected equipped with focusing convex lens A, the focusing convex lens A by lantern ring A with user's flange A
Connect, isolation window A is equipped with the lantern ring A, the delivery outlet of the transmitter unit is connected by conduit with receiving unit input port
Connect, the receiving unit includes detector module, pressure monitor module, focuses on convex lens B, lantern ring B and user's flange B, the spy
The top for surveying device module is equipped with pressure monitor module, and the side of the detector module, which is equipped with, focuses on convex lens B, the focusing convex lens
B is connected by lantern ring B with user's flange B, and isolation window B, the transmitter unit and receiving unit are provided with the lantern ring B
It is connected by conduit with backflush unit, the backflush unit includes instrument gas entrance, vacuum filter, needle-valve, flow
Meter, blowback air A, blowback air B and positive pressure gas, the blowback air A are connected with lantern ring B, and the blowback air B is connected with lantern ring A,
The positive pressure gas is connected with transmitter unit, is passed through respectively after laser line focus convex lens A collimations caused by the laser module
Received after crossing isolation window A, process gas and isolation window B by detector module.
Preferably, the laser module can also can be without TEC with TEC using TO encapsulated lasers and laser.
Preferably, the diameter of the focusing convex lens A and focusing convex lens B are all higher than or equal to 30mm.
Preferably, the shape of the side of the isolation window A and isolation window B is set to the folder between wedge shape and two planes
Angle is greater than or equal to 1 °, and the isolation window A and the positive shape for isolating window B are set to circular and diameter is greater than or equal to
30mm。
Preferably, the gas in the backflush unit is divided into three tunnels after vacuum filter, and two-way passes through flowmeter tune
It is used for blowback after section, is used for the explosion-proof positive pressure gas of instrument after needle-valve is adjusted all the way.
Preferably, the instrument of the backflush unit is set to 0.3 ~ 0.8MPa with the pressure of gas entrance.
Preferably, the adjustable range of the flowmeter is set to 0 ~ 1000L/min.
Preferably, the receiving unit further includes positive-pressure explosion-proof controller.
The beneficial effect that the utility model is reached is：The utility model can measure multiple gases, including HF, HCL,
H2O、CO、CO2、NH3Deng also there is the features such as installation in situ, measuring speed is fast and disturb from background gas, pushed away so as to have
Wide application value.
Brief description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form the limitation to the utility model.In the accompanying drawings：
Fig. 1 is the structure diagram of the utility model.
In figure：1- transmitter units, 11- laser modules, 12- circuit board modules, 13- display units, 14- focus on convex lens A,
15- lantern ring A, 16- user's flange A, 17- isolation window A, 2- receiving unit, 21- detector modules, 22- pressure monitor modules,
23- focusing convex lens B, 24- lantern ring B, 25- user's flange B, 26- isolation window B, 3- backflush unit, 31- instrument gas entrance,
32- vacuum filters, 33- needle-valves, 34- flowmeters, 35- blowback airs A, 36- blowback air B, 37- positive pressure gas, 4- process gas.
Embodiment
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it will be appreciated that described herein excellent
Select embodiment to be only used for describing and explaining the present invention, be not used to limit the utility model.
Embodiment
As shown in Figure 1, the utility model provides a kind of laser on-line gas analysis instrument device technique scheme：A kind of laser exists
Line gas analyzer device, including transmitter unit 1, receiving unit 2, backflush unit 3 and process gas 4, the transmitter unit 1 are led
To include laser module 11, circuit board module 12, display unit 13, focusing convex lens A14, lantern ring A15 and user flange A16,
The side of the laser module 11 is equipped with circuit board module 12, and the side of the circuit board module 12 is equipped with display unit 13,
The opposite side of the laser module 11 is equipped with focusing convex lens A14, the focusing convex lens A14 and passes through lantern ring A15 and user's flange
A16 is connected, and isolation window A17 is equipped with the lantern ring A15, and the delivery outlet of the transmitter unit 1 is single with receiving by conduit
First 2 input ports are connected, and the receiving unit 2 includes detector module 21, pressure monitor module 22, focuses on convex lens B23, the lantern ring
B24 and user's flange B25, the top of the detector module 21 are equipped with pressure monitor module 22, the detector module 21
Side is connected equipped with focusing convex lens B23, the focusing convex lens B23 by lantern ring B24 with user's flange B25, the lantern ring B24
Isolation window B26 is inside installed, the transmitter unit 1 and receiving unit 2 are connected by conduit with backflush unit 3, described
Backflush unit 3 includes instrument gas entrance 31, vacuum filter 32, needle-valve 33, flowmeter 34, blowback air A35, blowback air B36
With positive pressure gas 37, the blowback air A35 is connected with lantern ring B24, and the blowback air B36 is connected with lantern ring A15, the positive pressure
Gas 37 is connected with transmitter unit 1, passes through respectively after laser line focus convex lens A14 collimations caused by the laser module 11
Received after isolation window A17, process gas 4 and isolation window B26 by detector module 21.
Wherein, the laser module 11 can also can be without TEC with TEC using TO encapsulated lasers and laser.
Wherein, the diameter of the focusing convex lens A14 and focusing convex lens B23 are all higher than or equal to 30mm.
Wherein, the shape of the side of the isolation window A17 and isolation window B26 is set between wedge shape and two planes
Angle is greater than or equal to 1 °, and the isolation window A17 and the positive shape for isolating window B26 are set to circular and diameter is more than
Or equal to 30mm.
Wherein, the gas in the backflush unit 3 is divided into three tunnels after vacuum filter 32, and two-way passes through flowmeter 34
It is used for blowback after adjusting, is used for the explosion-proof positive pressure gas 37 of instrument after the adjusting of needle-valve 33 all the way.
Wherein, the instrument of the backflush unit 3 is set to 0.3 ~ 0.8MPa with the pressure of gas entrance 31.
Wherein, the adjustable range of the flowmeter 34 is set to 0 ~ 1000L/min.
Wherein, the receiving unit 2 further includes positive-pressure explosion-proof controller, and when barotropic gas monitoring reaches requirement, instrument is
Can be powered operation.
Operation principle：Laser is produced by laser module 11, into directional light, difference after over-focusing convex lens A14 collimations
By isolating window A 17, process gas 4, isolates window B26, then, is received by detector module 21, process gas 4 is dense
The change of degree can be changed into the change of voltage signal by detector module 21, and it is dense by circuit board module 12 to be scaled gas
Degree, finally, is shown by display unit 13.The device can measure multiple gases, including HF, HCL, H2O, CO, CO2, NH3 etc.,
Also with the features such as installation in situ, measuring speed is fast and is disturbed from background gas.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify the technical solution described in foregoing embodiments, or to which part technical characteristic
Carry out equivalent substitution.Where within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of laser on-line gas analysis instrument device, including transmitter unit（1）, receiving unit（2）, backflush unit（3）And mistake
Journey gas（4）, it is characterised in that：The transmitter unit（1）Mainly include laser module（11）, circuit board module（12）, it is aobvious
Show unit（13）, focus on convex lens A（14）, lantern ring A（15）With user's flange A（16）, the laser module（11）Side set
There is circuit board module（12）, the circuit board module（12）Side be equipped with display unit（13）, the laser module（11）
Opposite side be equipped with and focus on convex lens A（14）, the focusing convex lens A（14）Pass through lantern ring A（15）With user's flange A（16）It is connected
Connect, the lantern ring A（15）It is interior to be equipped with isolation window A（17）, the transmitter unit（1）Delivery outlet pass through conduit and receiving unit
（2）Input port is connected, the receiving unit（2）Including detector module（21）, pressure monitor module（22）, focus on convex lens B
（23）, lantern ring B（24）With user's flange B（25）, the detector module（21）Top be equipped with pressure monitor module（22）, institute
State detector module（21）Side be equipped with and focus on convex lens B（23）, the focusing convex lens B（23）Pass through lantern ring B（24）With user
Flange B（25）It is connected, the lantern ring B（24）Isolation window B is inside installed（26）, the transmitter unit（1）And receiving unit
（2）Pass through conduit and backflush unit（3）It is connected, the backflush unit（3）Including instrument gas entrance（31）, be filtered under diminished pressure
Device（32）, needle-valve（33）, flowmeter（34）, blowback air A（35）, blowback air B（36）And positive pressure gas（37）, the blowback air A
（35）With lantern ring B（24）It is connected, the blowback air B（36）With lantern ring A（15）It is connected, the positive pressure gas（37）It is single with transmitting
Member（1）It is connected, the laser module（11）Caused laser line focus convex lens A（14）Pass through isolation window after collimation respectively
Piece A（17）, process gas（4）With isolation window B（26）Afterwards by detector module（21）Receive.
A kind of 2. laser on-line gas analysis instrument device according to claim 1, it is characterised in that：The laser module
（11）Can also can be without TEC with TEC using TO encapsulated lasers and laser.
A kind of 3. laser on-line gas analysis instrument device according to claim 1, it is characterised in that：The focusing convex lens A
（14）With focusing convex lens B（23）Diameter be all higher than or equal to 30mm.
A kind of 4. laser on-line gas analysis instrument device according to claim 1, it is characterised in that：The isolation window A
（17）With isolation window B（26）Side shape be set to wedge shape and two planes between angle be greater than or equal to 1 °, it is described
Isolate window A（17）With isolation window B（26）Positive shape be set to circular and diameter is greater than or equal to 30mm.
A kind of 5. laser on-line gas analysis instrument device according to claim 1, it is characterised in that：The backflush unit
（3）In gas pass through vacuum filter（32）After be divided into three tunnels, two-way passes through flowmeter（34）It is used for blowback after adjusting, all the way
By needle-valve（33）It is used for the explosion-proof positive pressure gas of instrument after adjusting（37）.
A kind of 6. laser on-line gas analysis instrument device according to claim 1, it is characterised in that：The backflush unit
（3）Instrument gas entrance（31）Pressure be set to 0.3 ~ 0.8MPa.
A kind of 7. laser on-line gas analysis instrument device according to claim 1, it is characterised in that：The flowmeter（34）
Adjustable range be set to 0 ~ 1000L/min.
A kind of 8. laser on-line gas analysis instrument device according to claim 1, it is characterised in that：The receiving unit
（2）Further include positive-pressure explosion-proof controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721180105.5U CN207300877U (en) | 2017-09-15 | 2017-09-15 | A kind of laser on-line gas analysis instrument device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721180105.5U CN207300877U (en) | 2017-09-15 | 2017-09-15 | A kind of laser on-line gas analysis instrument device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207300877U true CN207300877U (en) | 2018-05-01 |
Family
ID=62441409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721180105.5U Active CN207300877U (en) | 2017-09-15 | 2017-09-15 | A kind of laser on-line gas analysis instrument device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207300877U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345907A (en) * | 2017-09-15 | 2017-11-14 | 苏州量痕仪器有限公司 | A kind of laser on-line gas analysis instrument apparatus |
| CN110462373A (en) * | 2017-03-22 | 2019-11-15 | 钢铁普蓝特克股份有限公司 | Gas component measuring device |
-
2017
- 2017-09-15 CN CN201721180105.5U patent/CN207300877U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110462373A (en) * | 2017-03-22 | 2019-11-15 | 钢铁普蓝特克股份有限公司 | Gas component measuring device |
| CN110462373B (en) * | 2017-03-22 | 2021-03-02 | 钢铁普蓝特克股份有限公司 | Gas component measuring device |
| CN107345907A (en) * | 2017-09-15 | 2017-11-14 | 苏州量痕仪器有限公司 | A kind of laser on-line gas analysis instrument apparatus |
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