CN109342347A - Multi-mode gas analysis device and analysis method - Google Patents
Multi-mode gas analysis device and analysis method Download PDFInfo
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- CN109342347A CN109342347A CN201811309194.8A CN201811309194A CN109342347A CN 109342347 A CN109342347 A CN 109342347A CN 201811309194 A CN201811309194 A CN 201811309194A CN 109342347 A CN109342347 A CN 109342347A
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- 238000004458 analytical method Methods 0.000 title claims abstract description 16
- 238000004868 gas analysis Methods 0.000 title claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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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
- G01N21/17—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
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
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- 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)
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to a multi-mode gas analysis device and an analysis method, and the multi-mode gas analysis device comprises a main gas path, and a thermal conductivity type gas analysis device and an infrared gas analysis device which are communicated with the main gas path, wherein the main gas path is communicated with a gas inlet device, the thermal conductivity type gas analysis device and the infrared gas analysis device are respectively connected with a processing terminal, the processing terminal is connected with a local area network module and/or an internet of things module, and the processing terminal is connected with a remote terminal through the local area network module and/or the internet of things module. According to the multi-mode gas analysis device and the multi-mode gas analysis method, the air flow in the main air path is ensured through the air inlet device, and the air flow rate in the main air path is detected through the flow rate sensor, so that the air inflow entering the main air path is adjusted and controlled, and the analysis work of the thermal conductivity type gas analysis device and the infrared gas analysis device is facilitated.
Description
Technical field
The invention belongs to gas analysis arrangement technical fields, and in particular to a kind of multi-mode gas analyzing apparatus and analysis
Method.
Background technique
Traditional fire alarm system is single to the detection mode of air, larger to the testing result error of surrounding air,
And flexibility is poor, it is difficult to adapt to the detection work of varying environment, at present used infrared ray gas analysis apparatus, detection essence
Degree is high, but corresponding manufacturing cost and use cost it is all higher and opposite service life it is shorter, maintenance cost is high, is not easy
In long-term work.
Summary of the invention
The object of the invention is that solve the above-mentioned problems and to provide a kind of structure simple, design reasonable a kind of more
Regime gas analytical equipment and analysis method.
The present invention through the following technical solutions to achieve the above objectives:
A kind of multi-mode gas analyzing apparatus and analysis method, including main gas circuit, and the thermal conductivity being connected to main gas circuit
Formula gas analyzing apparatus and infrared gas analyzing apparatus are communicated with inlet duct, heat-conducted gas analysis dress in the main gas circuit
It sets and is connect respectively with processing terminal with infrared gas analyzing apparatus, processing terminal is connected with LAN module and/or Internet of Things mould
Block, processing terminal connect remote terminal by LAN module and/or Internet of Things module；
Heat-conducted gas analytical equipment includes reference cell and measuring chamber, and measuring chamber is connected to main gas circuit, reference cell and measurement
The inside of room is respectively connected with thermal conductivity sensor, seals reference gas in reference cell, if concentration changes in tested component, sample
The thermal conductivity of gas can change therewith；
The infrared gas analyzing apparatus includes an absorption gas chamber, absorbs gas chamber and is connected to main gas circuit, absorbs the one of gas chamber
End is infrared light supply, and infrared light supply emits infrared light to gas chamber is absorbed, and the other end for absorbing gas chamber is an optical filter, and infrared light is worn
It crosses absorption gas chamber and enters detection binary channels, detection binary channels is connected to infrared sensor.
As a further optimization solution of the present invention, the air inlet of the measuring chamber and absorption gas chamber connects with main gas circuit respectively
Meet valve a and valve b.
As a further optimization solution of the present invention, the heat-conducted gas analytical equipment is using heat-conducted carbon dioxide point
Analyzer.
As a further optimization solution of the present invention, the infrared sensor includes that wherein a channel connects with detection binary channels
The reference module connect, and another channel attached measurement module being connect with detection binary channels, the reference module and measurement
Module is connect with amplifier respectively.
As a further optimization solution of the present invention, the valve a and valve b is all made of electrically-controlled valve, electrically-controlled valve and processing
Terminal connection.
As a further optimization solution of the present invention, the processing terminal is the end PC.
As a further optimization solution of the present invention, one end of the main gas circuit by tee tube respectively with valve a and valve
Door b connection.
As a further optimization solution of the present invention, the gas outlet of the measuring chamber is connected to a regulating valve, the regulating valve
It is connect with processing terminal.
As a further optimization solution of the present invention, flow sensor, flow-velocity sensing are connected on the inside of the main gas circuit
Device is connect with processing terminal.
According to a kind of analysis method of above-mentioned multi-mode gas analyzing apparatus,
The inlet duct progress air inlet work of S1, the main gas circuit of starting；
S2, valve a and/or valve b is opened, gas enters measuring chamber and/or absorbs gas chamber；
S3, the thermal conductivity sensor absorbed on the inside of gas chamber are detected, and are detected by the thermal conductivity sensor of reference cell
Work, measures relevant temperature information, correlative measurement is obtained information and passes to processing terminal；
The infrared light supply for absorbing gas chamber emits laser into absorption gas chamber, opens the valve for absorbing gas chamber, gas enters suction
Getter room after carrying out optical filtering work by optical filter, is detected by infrared sensor to the infrared ray for absorbing gas chamber is passed through,
And information will test by infrared sensor module and pass to processing terminal；
S4, processing terminal send relevant information to remote terminal by LAN module and Internet of Things module.
The beneficial effects of the present invention are:
1) of the invention, the air mass flow in main gas circuit is guaranteed by inlet duct, and by flow sensor to main gas circuit
Interior air velocity is detected, so that the air inflow that control enters main gas circuit is adjusted, convenient and heat-conducted gas analytical equipment
With the analysis work of infrared gas analyzing apparatus；
2) of the invention, the analysis of air can be carried out by heat-conducted gas analytical equipment and/or infrared gas analyzing apparatus
Work further increases the accuracy of analysis work；
3) when individually carrying out analysis work using heat-conducted gas analytical equipment, the adjusting of measuring chamber gas outlet can be started
Valve with this to increase the air concentration inside measuring chamber, and is avoided in air to adjust the air pressure inside of measuring chamber with this
Gas concentration lwevel is lower, influences the measurement effect of measuring chamber.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is control principle drawing of the invention.
In figure: 1, main gas circuit；2, inlet duct；3, tee tube；4, valve a；5, infrared gas analyzing apparatus；6, it measures
Room；7, reference cell；8, thermal conductivity sensor；9, regulating valve；10, valve b；11, gas chamber is absorbed；12, infrared light supply；13, optical filter；
14, infrared sensor；15, binary channels is detected；16, reference module；17, measurement module；18, processing terminal；19, local area network and/
Or Internet of Things module；20, remote terminal；21, heat-conducted gas analytical equipment.
Specific embodiment
The application is described in further detail with reference to the accompanying drawing, it is necessary to it is indicated herein to be, implement in detail below
Mode is served only for that the application is further detailed, and should not be understood as the limitation to the application protection scope, the field
Technical staff can make some nonessential modifications and adaptations to the application according to above-mentioned application content.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention；?
In description of the invention, unless otherwise indicated, " multiple ", " several " are meant that two or more.
Embodiment 1
As shown in Figs. 1-2, a kind of multi-mode gas analyzing apparatus and analysis method, including main gas circuit 1, and with main gas
The heat-conducted gas analytical equipment 21 and infrared gas analyzing apparatus 5 that road 1 is connected to are communicated with inlet duct in the main gas circuit 1
2, heat-conducted gas analytical equipment 21 and infrared gas analyzing apparatus 5 are connect with processing terminal 18 respectively, and processing terminal 18 connects
There are LAN module and/or Internet of Things module 19, processing terminal 18 is connected far by LAN module and/or Internet of Things module 19
Journey terminal 20；
Heat-conducted gas analytical equipment 21 includes reference cell 7 and measuring chamber 6, and the air inlet of measuring chamber 6 and main gas circuit 1 connect
Logical, the inside of reference cell 7 and measuring chamber 6 is respectively connected with thermal conductivity sensor 8a and thermal conductivity sensor 8b, seals reference in reference cell 7
Gas；
The infrared gas analyzing apparatus 5 includes an absorption gas chamber 11, absorbs gas chamber 11 and is connected to main gas circuit 1, absorbs gas
One end of room 11 is infrared light supply 12, and infrared light supply 12 emits infrared light to gas chamber 11 is absorbed, and the other end for absorbing gas chamber 11 is
One optical filter 13, infrared light, which passes through, absorbs gas chamber 11 into detection binary channels 15, and detection binary channels 15 is connected to infrared sensor 14.
Measuring chamber 6 and absorb gas chamber 11 air inlet respectively with main air circuit connection valve a4 and valve b10.
Heat-conducted gas analytical equipment 21 uses heat-conducted capnograph.
Infrared sensor 14 includes and detects the wherein channel attached reference module 16 of binary channels 15, and double with detection
Another channel attached measurement module 17 that channel 15 connects, the reference module 16 and measurement module 17 respectively with amplifier 22
Connection.
Valve a4 and valve b10 is all made of electrically-controlled valve, and electrically-controlled valve is connect with processing terminal 18.
Processing terminal 18 is the end PC.
One end of main gas circuit 1 is connected to valve a4 and valve b10 respectively by tee tube 3.
The gas outlet of measuring chamber 6 is connected to a regulating valve 9, and the regulating valve 9 is connect with processing terminal 18.
The inside of main gas circuit 1 is connected with flow sensor, and flow sensor is connect with processing terminal 18.
According to a kind of analysis method of above-mentioned multi-mode gas analyzing apparatus,
The progress air inlet work of inlet duct 2 of S1, the main gas circuit of starting；
S2, valve a4 and/or valve b10 is opened, gas enters measuring chamber 6 and/or absorbs gas chamber 11；
S3, the thermal conductivity sensor 8 for absorbing 11 inside of gas chamber are detected, and are carried out by the thermal conductivity sensor 8 of reference cell 7
Work is detected, relevant temperature information is measured, correlative measurement is obtained into information and passes to processing terminal 18；
The infrared light supply 12 for absorbing gas chamber 11 emits laser into absorption gas chamber 11, opens the valve b10 for absorbing gas chamber 11,
Gas, which enters, absorbs gas chamber 11, after carrying out optical filtering work by optical filter 13, by infrared sensor 14 to across absorption gas chamber
11 infrared ray is detected, and be will test information by 14 module of infrared sensor and passed to processing terminal 18；
S4, processing terminal 18 send relevant information to remote terminal 20 by LAN module and Internet of Things module 19.
It should be noted that measurement can be started when individually carrying out analysis work using heat-conducted gas analytical equipment (5)
The regulating valve (9) of room (6) gas outlet, so that the air pressure inside of measuring chamber (6) is adjusted, it is internal to increase measuring chamber (6) with this
Air concentration, and avoid the carbon dioxide concentration in air lower with this, influence the measurement effect of measuring chamber (6).
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.
Claims (10)
1. a kind of multi-mode gas analyzing apparatus, it is characterised in that: including main gas circuit (1), and the heat being connected to main gas circuit (1)
Conduction gas analyzing apparatus (21) and infrared gas analyzing apparatus (5) are communicated with inlet duct (2) on the main gas circuit (1), heat
Conduction gas analyzing apparatus (21) and infrared gas analyzing apparatus (5) are connect with processing terminal (18) respectively, processing terminal (18)
It is connected with LAN module and/or Internet of Things module (19), processing terminal (18) passes through LAN module and/or Internet of Things module
(19) remote terminal (20) are connected；
Heat-conducted gas analytical equipment (21) includes reference cell (7) and measuring chamber (6), air inlet and the main gas circuit of measuring chamber (6)
(1) it is connected to, the inside of reference cell (7) and measuring chamber (6) is respectively connected with thermal conductivity sensor (8), and reference gas is sealed in reference cell (7)
Body；
The infrared gas analyzing apparatus (5) includes absorption gas chamber (11), absorbs gas chamber (11) and is connected to main gas circuit (1), inhales
One end of getter room (11) is infrared light supply (12), and infrared light supply (12) emits infrared light to gas chamber (11) are absorbed, and absorbs gas chamber
(11) the other end is an optical filter (13), and infrared light, which passes through, absorbs gas chamber (11) into detection binary channels (15), detects bilateral
Road (15) is connected to infrared sensor (14).
2. a kind of multi-mode gas analyzing apparatus according to claim 1, it is characterised in that: the measuring chamber (6) and suction
The air inlet of getter room (11) respectively with main gas circuit (1) connecting valve a (4) and valve b (10).
3. a kind of multi-mode gas analyzing apparatus according to claim 1, it is characterised in that: the heat-conducted gas analysis
Device (21) uses heat-conducted capnograph.
4. a kind of multi-mode gas analyzing apparatus according to claim 1, it is characterised in that: the infrared sensor (14)
Including with detection binary channels (15) wherein channel attached reference module (16), and connect with detection binary channels (15) another
One channel attached measurement module (17), the reference module (16) and measurement module (17) are connect with amplifier (22) respectively.
5. a kind of multi-mode gas analyzing apparatus according to claim 1, it is characterised in that: the valve a (4) and valve
B (10) is all made of electrically-controlled valve, and electrically-controlled valve is connect with processing terminal (18).
6. a kind of multi-mode gas analyzing apparatus according to claim 1, it is characterised in that: the processing terminal (18) is
The end PC.
7. a kind of multi-mode gas analyzing apparatus according to claim 1, it is characterised in that: the one of the main gas circuit (1)
End is connected to valve a (4) and valve b (10) respectively by tee tube (3).
8. a kind of multi-mode gas analyzing apparatus according to claim 1, it is characterised in that: the measuring chamber (6) goes out
Port is connected to a regulating valve (9), and the regulating valve (9) connect with processing terminal (18).
9. a kind of multi-mode gas analyzing apparatus according to claim 1, it is characterised in that: the main gas circuit (1) it is interior
Side is connected with flow sensor, and flow sensor is connect with processing terminal (18).
10. according to claim 1 to a kind of analysis method of multi-mode gas analyzing apparatus described in 9, it is characterised in that:
Inlet duct (2) the progress air inlet work of S1, the main gas circuit (1) of starting；
S2, valve a (4) and/or valve b (10) is opened, gas enters measuring chamber (6) and/or absorbs gas chamber (11)；
S3, the thermal conductivity sensor (8) absorbed on the inside of gas chamber (11) are detected, and pass through the thermal conductivity sensor (8) of reference cell (7)
Detection work is carried out, relevant temperature information is measured, correlative measurement is obtained into information and passes to processing terminal (18)；
The infrared light supply (12) of gas chamber (11) is absorbed to transmitting laser in gas chamber (11) is absorbed, and opens the valve for absorbing gas chamber (11)
B (10), gas, which enters, absorbs gas chamber (11), right by infrared sensor (14) after carrying out optical filtering work by optical filter (13)
It is detected across the infrared ray for absorbing gas chamber (11), and information will test by infrared sensor (14) module and pass to processing
Terminal (18)；
S4, processing terminal (18) send relevant information to remote terminal by LAN module and Internet of Things module (19)
(20)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811309194.8A CN109342347A (en) | 2018-11-05 | 2018-11-05 | Multi-mode gas analysis device and analysis method |
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|---|---|---|---|
| CN201811309194.8A CN109342347A (en) | 2018-11-05 | 2018-11-05 | Multi-mode gas analysis device and analysis method |
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| CN109342347A true CN109342347A (en) | 2019-02-15 |
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| CN201811309194.8A Pending CN109342347A (en) | 2018-11-05 | 2018-11-05 | Multi-mode gas analysis device and analysis method |
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