CN109060663A - A kind of gas absorption cell and optical gas analyzer - Google Patents
A kind of gas absorption cell and optical gas analyzer Download PDFInfo
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- CN109060663A CN109060663A CN201810716374.1A CN201810716374A CN109060663A CN 109060663 A CN109060663 A CN 109060663A CN 201810716374 A CN201810716374 A CN 201810716374A CN 109060663 A CN109060663 A CN 109060663A
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 84
- 230000003287 optical effect Effects 0.000 title claims abstract description 17
- 238000009826 distribution Methods 0.000 claims abstract description 42
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011481 absorbance measurement Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/031—Multipass arrangements
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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
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- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Measuring Cells (AREA)
Abstract
A kind of gas absorption cell is related to gas detection equipment field comprising gas absorption cell ontology, first end cover, gas distribution part, second end cover and gas collaborate part.Gas absorption cell ontology has inlet end, outlet side and gas chamber.First end cover is connect with inlet end, and first end cover is equipped with the first mounting groove and first through hole.Second end cover is connect with outlet side, and second end cover is equipped with the second mounting groove and the second through-hole.Gas distribution part is placed in inside the first mounting groove, and gas distribution part is equipped with the first air inlet, first gas circulation groove and multiple first ventholes, is interconnected between them.Gas interflow part is placed in inside the second mounting groove, and gas collaborates part and is equipped with multiple second air inlets, second gas circulation groove and the second venthole, is interconnected between them.This gas absorption cell can be improved the uniformity and stability that tested gas is spread in gas absorption cell, to improve the detection accuracy of optical gas analyzer.
Description
Technical field
The present invention relates to gas detection equipment fields, analyze in particular to a kind of gas absorption cell and optical gas
Instrument.
Background technique
Gas absorption cell is one of core component of optical gas analyzer, mainly by pond body, gas inlet and outlet, light path room
Deng composition.The gas in pond is actually taken up by gas across the light beam of gas absorption cell to absorb, it is dense by calculating absorbance measurement gas
Degree.Gas absorption cell is mainly used in AIR POLLUTION STUDY, environmental monitoring, gas purity analysis, industrial processes monitoring, row
Put the fields such as gas analysis and oil exploration geological logging process monitoring.
In the prior art, gas absorption cell structure does not account for the equal of the gas indoor gas distribution of gas absorption cell mostly
Influence of the even property to testing result, causes equivalent optical path to be not sufficiently stable, to measure not accurate enough.
Summary of the invention
The purpose of the present invention is to provide a kind of gas absorption cells, can be improved tested gas and expand in gas absorption cell
Scattered uniformity and stability, to improve the detection accuracy of optical gas analyzer.
Another object of the present invention is to provide a kind of optical gas analyzers, can be improved tested gas and inhale in gas
The uniformity and stability spread in receives pond, to improve the detection accuracy of optical gas analyzer.
The embodiment of the present invention is achieved in that
A kind of gas absorption cell comprising gas absorption cell ontology, first end cover, gas distribution part, second end cover are gentle
Body collaborates part.The gas absorption cell ontology has inlet end, outlet side and gas chamber.The gas chamber is connected to the inlet end and institute
Outlet side is stated, the gas chamber is for accommodating tested gas.
The first end cover is connect with the inlet end of the gas absorption cell ontology, and the first end cover is described in
Gas absorption cell ontology is recessed with the first mounting groove on one side, and the first peripheral wall of the first end cover is equipped with first through hole.
The gas distribution part is set within first mounting groove, the gas distribution part be equipped with the first air inlet,
First gas circulation groove and multiple first ventholes.The first through hole of first air inlet and the first end cover connects
Logical, first air inlet is connected to the first gas circulation groove, and the first gas circulation groove and multiple described first goes out
Stomata connection.
The second end cover is connect with the outlet side of the gas absorption cell ontology, and the second end cover is close to described
One end of gas absorption cell ontology is recessed with the second mounting groove, and the second peripheral wall of the second end cover is equipped with the second through-hole.
Gas interflow part is set within second mounting groove, and gas interflow part is equipped with multiple second air inlets
Hole, second gas circulation groove and the second venthole.Multiple second air inlets are connected to the second gas circulation groove, described
Second gas circulation groove is connected to second venthole, second through-hole of second venthole and the second end cover
Connection.
Further, in preferred embodiments of the present invention, the gas distribution part includes first base and from described
The first side wall that the edge of one pedestal extends towards the gas absorption cell ontology, first air inlet are set to the first side wall
On, the multiple first venthole is set to the first side wall on the first end of the gas absorption cell ontology, described
First gas circulation groove is recessed on the first inner wall of the first base.
Further, in preferred embodiments of the present invention, gas interflow part includes second base and from described the
The second sidewall that the edge of two pedestals extends towards the gas absorption cell ontology, second venthole are set to the second sidewall
On, the multiple second air inlet is set to the second sidewall on the second end of the gas absorption cell ontology, described
Second gas circulation groove is recessed on the second inner wall of the second base.
Optionally, in preferred embodiments of the present invention, the quantity of first venthole is two and more than two, institute
The quantity for stating the second air inlet is two and two or more.
Optionally, in preferred embodiments of the present invention, the multiple first venthole is on the gas distribution part
It is uniformly arranged, the multiple second air inlet is in be uniformly arranged on the part of gas interflow.
It further, further include the first reflecting mirror and the second reflecting mirror in preferred embodiments of the present invention, described first
Reflecting mirror is set within first mounting groove, and first reflecting mirror is fixedly connected on the gas distribution part away from described
The one side of first end cover, second reflecting mirror is set within second mounting groove, and second reflecting mirror is fixedly connected
In gas interflow, part deviates from the one side of the second end cover.
Optionally, in preferred embodiments of the present invention, the mode that is fixedly connected is bonding.
Further, in preferred embodiments of the present invention, further include light inlet and light-emitting window, set in the first end cover
There is the first through hole, the gas distribution part corresponds to and offers running through for gas distribution part at the position of first through hole
Hole, first reflecting mirror correspond to the through hole that the first reflecting mirror is offered at the position of the through hole of the gas distribution part,
The through hole of first through hole, the through hole of the gas distribution part and first reflecting mirror is interconnected and common shape
At the light inlet, the second end cover is equipped with the second through hole, and gas interflow part corresponds to second through hole
The through hole of gas interflow part is offered at position, second reflecting mirror corresponds to the position of the through hole of gas interflow part
Place offers the through hole of the second reflecting mirror, and second through hole, the gas collaborate the through hole and described second of part instead
The through hole for penetrating mirror is interconnected and the light-emitting window is collectively formed.
It further, further include suction nozzle and outlet nozzle in preferred embodiments of the present invention, the suction nozzle is installed on
At the first through hole of the first end cover, the outlet nozzle is installed on second through hole of the second end cover.
A kind of optical gas analyzer comprising above-mentioned gas absorption cell.
The beneficial effect of the embodiment of the present invention is: gas absorption cell provided in an embodiment of the present invention have gas distribution part and
Gas collaborates part, and gas distribution part has multiple outlets, and gas, which collaborates part, has multiple entrances, enable to tested gas from
Multiple positions enter the gas chamber of gas absorption cell ontology simultaneously, and export simultaneously from multiple positions, can effectively improve tested
Mixing uniformity of the gas in gas absorption cell is effectively prevented to improve the Stability and veracity of optical gas detection
Stop the non-uniform problem of gas mixing, compensates for the defect of the prior art.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of the first embodiment of gas absorption cell of the present invention；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 is the partial enlarged view in Fig. 1 at B；
Fig. 4 is the structural schematic diagram of gas distribution part in Fig. 1；
Fig. 5 is the structural schematic diagram that gas collaborates part in Fig. 1；
Fig. 6 is the scheme of installation of gas distribution part and the first reflecting mirror in Fig. 1；
Fig. 7 is the structural schematic diagram of the second embodiment of gas absorption cell of the present invention.
Icon: 1- gas absorption cell ontology；2- first end cover；3- second end cover；4- gas distribution part；5- gas interflow
Part；The first reflecting mirror of 6-；The second reflecting mirror of 7-；8- light inlet；9- light-emitting window；10- suction nozzle；11- inlet end；The outlet side 12-；
13- gas chamber；20- outlet nozzle；The first mounting groove of 21-；The first peripheral wall of 22-；23- first through hole；The first through hole of 24-；31- second
Mounting groove；The second peripheral wall of 32-；The second through-hole of 33-；The second through hole of 34-；The first air inlet of 41-；42- first gas circulation groove；
The first venthole of 43-；44- first base；45- the first side wall；46- first end；The first inner wall of 47-；48- gas distribution part
Through hole；The second air inlet of 51-；52- second gas circulation groove；The second venthole of 53-；54- second base；55- second side
Wall；56- the second end；The second inner wall of 57-；The through hole of 58- gas interflow part；The through hole of the first reflecting mirror of 61-；71-
The through hole of second reflecting mirror；100- gas absorption cell.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
First embodiment
Fig. 1 is please referred to, the present embodiment provides a kind of gas absorption cells 100 comprising gas absorption cell ontology 1, first end
Lid 2, second end cover 3, gas distribution part 4, gas collaborate part 5.
Referring to Fig.1-3, gas absorption cell ontology 1 has inlet end 11, outlet side 12 and gas chamber 13, and gas chamber 13 is connected to air inlet
End 11 and outlet side 12, gas chamber 13 is for accommodating tested gas.The inlet end of above-mentioned first end cover 2 and gas absorption cell ontology 1
11 are tightly connected, which is recessed with the first mounting groove 21 towards gas absorption cell ontology 1 on one side, the first end cover 2
The first peripheral wall 22 be equipped with first through hole 23.The outlet side 12 of above-mentioned second end cover 3 and gas absorption cell ontology 1, which seals, to be connected
It connects, which is recessed with the second mounting groove 31, and the second week of second end cover 3 towards gas absorption cell ontology 1 on one side
Wall 32 is equipped with the second through-hole 33.
It should be noted that gas absorption cell ontology 1 is hollow structure, hollow cavity is gas absorption cell ontology 1
Gas chamber 13.
Above-mentioned gas position of splitter 4 is set within the first mounting groove 21, and gas distribution part 4 is equipped with the first air inlet 41, the
One gas circulation groove 42 and multiple first ventholes 43, the first air inlet 41 are connected to the first through hole 23 of first end cover 2, and first
Air inlet 41 is connected to first gas circulation groove 42, and first gas circulation groove 42 is connected to multiple first ventholes 43.Above-mentioned gas
Body interflow part 5 is set within the second mounting groove 31, and gas collaborates part 5 and is equipped with multiple second air inlets 51, second gas circulation
Slot 52 and the second venthole 53, multiple second air inlets 51 are connected to second gas circulation groove 52, the second venthole 53 and second
Second through-hole 33 of end cap 3 is connected to, and the second venthole 53 is connected to second gas circulation groove 52.
It should also be noted that, above-mentioned gas position of splitter 4 and 2 fixed seal connection of first end cover, gas collaborates part 5 and the
Two end caps, 3 fixed seal connection.
Wherein, it is tested gas and the first air inlet 41 is entered by above-mentioned first through hole 23, using multiple first ventholes
43, which enter gas chamber 13, mixes, and then enters from multiple second air inlets 51, is pooled to the second venthole 53 again through the second through-hole 33
Output.
Further, with reference to Fig. 4, above-mentioned gas position of splitter 4 includes first base 44 and extends from 44 edge of first base
The first side wall 45 out, the first air inlet 41 are set on the first side wall 45, and it is close that the first venthole 43 is set to the first side wall 45
The first end 46 of gas absorption cell ontology 1, recessed the first inner wall 47 in first base 44 of first gas circulation groove 42.
Further, with reference to Fig. 5, above-mentioned gas collaborates part 5 and includes second base 54 and extend from 54 edge of second base
Second sidewall 55 out, the second venthole 53 are set in second sidewall 55, and it is close that the second air inlet 51 is set to second sidewall 55
The second end 56 of gas absorption cell ontology 1, recessed the second inner wall 57 in second base 54 of second gas circulation groove 52.
It should be noted that first gas circulation groove 42 herein is the first air inlet 41 of connection and the first venthole 43
Annular groove, the purpose is to connect the bridge of the two, specifically used in the present invention is ring structure, is shown in a manner of enumerating
Out, it is not limited only to ring structure, the concrete shape of first gas circulation groove 42, size, position are with no restrictions.Second ring
Shape slot is also for this purpose, details are not described herein.
Optionally, the quantity of above-mentioned first venthole 43 is two and more than two, the quantity of second air inlet 51
It is for two and more than two.
Optionally, multiple first ventholes 43 are in be uniformly arranged along the center of above-mentioned gas position of splitter 4, and multiple second
Air inlet 51 is in be uniformly arranged along the center of above-mentioned gas interflow part 5.
Gas absorption cell 100 provided in an embodiment of the present invention from multiple positions while can enter since it is tested gas
It in the gas chamber 13 of gas absorption cell ontology 1, and is exported simultaneously from multiple positions, can be improved tested gas in gas absorption cell
Mixing uniformity in 100 improves the stability of optical gas detection.Meanwhile multiple first ventholes 43 and multiple second into
Stomata 51, which is all made of, to be uniformly arranged, the uniformity and stability that gas when disengaging gas can be improved circulates.
It further, further include the first reflecting mirror 6 and the second reflecting mirror 7 with reference to Fig. 6, the first reflecting mirror 6 is set to first end
Within first mounting groove 21 of lid 2, and the first reflecting mirror 6 is fixedly connected on the one side that gas distribution part 4 deviates from first end cover 2,
Second reflecting mirror 7 is set within the second mounting groove 31 of second end cover 3, and the second reflecting mirror 7 is fixedly connected on gas interflow part 5
Away from the one side of second end cover 3.
Optionally, the first reflecting mirror 6 is fixedly connected by the way of gluing with gas distribution part 4, the second reflecting mirror 7 and gas
Body interflow part 5 is fixedly connected by the way of gluing.
Further, incorporated by reference to Fig. 1-5, first end cover 2 is equipped with the first through hole 24, gas distribution part 4 corresponding first
The through hole 48 of gas distribution part, the through hole of the corresponding gas distribution part of the first reflecting mirror 6 are offered at the position of through hole 24
The through hole 61 of the first reflecting mirror, the through hole 48 and first of the first through hole 24, gas distribution part are offered at 48 position
The through hole 61 of reflecting mirror is interconnected and light inlet 8 is collectively formed, and second end cover 3 is equipped with the second through hole 34, and gas closes
The through hole 58 of gas interflow part is offered at the position of corresponding second through hole 34 of stream part 5, the corresponding gas of the second reflecting mirror 7 closes
The through hole 71 that the second reflecting mirror is offered at the position of the through hole 58 of part is flowed, the second through hole 34, gas collaborate passing through for part
The through hole 71 of perforation 58 and the second reflecting mirror is interconnected and light-emitting window 9 is collectively formed.
It should be noted that light inlet 8 herein is equipped with a transparent window film for passing the beam through at light inlet 8, it can
So that light beam penetrates, while the tested gas that can avoid in gas absorption cell 100 in gas chamber 13 is revealed from light inlet 8.It goes out
Optical port 9 also is provided with a transparent window film, light beam can be made to penetrate, while can avoid in gas absorption cell 100 for projecting light beam
Tested gas in gas chamber 13 is revealed from light-emitting window 9.
The working principle of gas absorption cell 100 is: tested gas enters from the first through hole 23 of first end cover 2, then into
Enter in gas distribution part 4, then enters from the first air inlet 41 of gas distribution part 4 and reach first gas circulation groove 42, then from more
A the first venthole 43 output being circumferentially distributed, reaches in the gas chamber 13 of gas absorption cell ontology 1 and is uniformly mixed, then reach gas
Body collaborates in part 5, enters from multiple the second air inlets 51 being circumferentially distributed, and enters second using second gas circulation groove 52
Venthole 53 is finally exported from the second through-hole 33 subsequently into second end cover 3.The present invention is by being tested gas from multiple positions
The gas chamber 13 of gas absorption cell ontology 1 is set while being entered, and is exported simultaneously from multiple positions, can be improved tested gas in gas
Mixing uniformity in the gas chamber 13 of absorption cell ontology 1, so as to improve the stability and accuracy of optical gas detection.
Second embodiment
Fig. 7 is please referred to, the present embodiment provides a kind of gas absorption cells 100 comprising gas absorption cell ontology 1, first end
Lid 2, second end cover 3, gas distribution part 4, gas collaborate part 5, the first reflecting mirror 6, the second reflecting mirror 7, light inlet 8, light-emitting window
9, suction nozzle 10 and outlet nozzle 20.Wherein, which is installed at the first through hole 23 of first end cover 2, the outlet nozzle 20
It is installed at the second through-hole 33 of second end cover 3.Due to gas absorption cell ontology 1, first end cover 2, second end cover 3, gas point
One is kept in stream part 4, gas interflow part 5, the first reflecting mirror 6, the second reflecting mirror 7, light inlet 8, light-emitting window 9 and above-described embodiment
It causes, and specifically describes its structure and beneficial effect in the above-described embodiments, therefore this will not be repeated here.
It should be noted that the suction nozzle 10 has an inlet channel, which connect with first end cover 2, and into
The inlet channel of gas nozzle 10 is connected to the first through hole 23 of first end cover 2.Outlet nozzle 20 have an outlet passageway, outlet nozzle 20 with
Second end cover 3 connects, and the outlet passageway of the outlet nozzle 20 is connected to the second through-hole 33 of second end cover 3.
It should also be noted that, above-mentioned suction nozzle 10 with outlet nozzle 20 is arranged for the ease of disengaging gas, as long as energy
Reach this purpose, does not do shape limitation.
The working principle of gas absorption cell 100 is: tested gas enters from suction nozzle 10, logical by the air inlet of suction nozzle 10
Road comes out, then enters from the first through hole 23 of first end cover 2, subsequently into gas distribution part 4, then from gas distribution part 4
First air inlet 41, which enters, reaches first gas circulation groove 42, then exports from multiple in the first venthole 43 being uniformly arranged, and arrives
It is uniformly mixed, then is reached in the part 5 of gas interflow up in the gas chamber 13 of gas absorption cell ontology 1, from multiple in be uniformly arranged the
Two air inlets 51 enter, and enter the second venthole 53 using second gas circulation groove 52, subsequently into second end cover 3, pass through
It crosses the output of the second through-hole 33 and reaches outlet nozzle 20, finally exported from the outlet passageway of outlet nozzle 20.The present invention is by being tested gas
Enter the gas chamber 13 of gas absorption cell ontology 1 simultaneously from multiple positions, and exported simultaneously from multiple positions, can be improved tested gas
Mixing uniformity of the body in the gas chamber 13 of gas absorption cell ontology 1, so as to improve optical gas detection stability and
Accuracy.
The present invention also provides a kind of optical gas analyzers, including any one gas absorption cell 100 as described above,
With structure identical with the gas absorption cell 100 in previous embodiment and beneficial effect.Due to the structure of gas absorption cell 100
It has been described in detail with beneficial effect, has not repeated herein in the aforementioned embodiment.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of gas absorption cell, which is characterized in that the gas absorption cell includes:
Gas absorption cell ontology, the gas absorption cell ontology have inlet end, outlet side and a gas chamber, described in gas chamber connection
Inlet end and the outlet side, the gas chamber is for accommodating tested gas；
First end cover, the first end cover are connect with the inlet end of the gas absorption cell ontology, the first end cover court
It is recessed with the first mounting groove on one side to the gas absorption cell ontology, it is logical that the first peripheral wall of the first end cover is equipped with first
Hole；
Gas distribution part, the gas distribution part are set within first mounting groove, and the gas distribution part is equipped with first
Described the first of air inlet, first gas circulation groove and multiple first ventholes, first air inlet and the first end cover
Through-hole connection, first air inlet is connected to the first gas circulation groove, the first gas circulation groove and multiple described
The connection of first venthole；
Second end cover, the second end cover are connect with the outlet side of the gas absorption cell ontology, and the second end cover is leaned on
One end of the nearly gas absorption cell ontology is recessed with the second mounting groove, and it is logical that the second peripheral wall of the second end cover is equipped with second
Hole；And
Gas collaborates part, and gas interflow part is set within second mounting groove, and gas interflow part is equipped with multiple
Second air inlet, second gas circulation groove and the second venthole, the multiple second air inlet and the second gas circulation groove
Connection, the second gas circulation groove are connected to second venthole, the institute of second venthole and the second end cover
State the connection of the second through-hole.
2. gas absorption cell according to claim 1, which is characterized in that the gas distribution part includes first base and oneself
The first side wall that the edge of the first base extends towards the gas absorption cell ontology, first air inlet are set to described the
In one side wall, the multiple first venthole is set to the first side wall close to the first end of the gas absorption cell ontology
On, the first gas circulation groove is recessed on the first inner wall of the first base.
3. gas absorption cell according to claim 1, which is characterized in that gas interflow part includes second base and oneself
The second sidewall that the edge of the second base extends towards the gas absorption cell ontology, second venthole are set to described the
On two side walls, the multiple second air inlet is set to the second sidewall close to the second end of the gas absorption cell ontology
On, the second gas circulation groove is recessed on the second inner wall of the second base.
4. gas absorption cell according to claim 1, which is characterized in that the quantity of first venthole is two and two
More than a, the quantity of second air inlet is two and two or more.
5. gas absorption cell according to claim 1, which is characterized in that the multiple first venthole is in the gas point
In being uniformly arranged on stream part, the multiple second air inlet is in be uniformly arranged on the part of gas interflow.
6. gas absorption cell according to claim 1, which is characterized in that it further include the first reflecting mirror and the second reflecting mirror,
First reflecting mirror is set within first mounting groove, and first reflecting mirror is fixedly connected on the gas distribution part
Away from the one side of the first end cover, second reflecting mirror is set within second mounting groove, and second reflecting mirror
It is fixedly connected on the one side that gas interflow part deviates from the second end cover.
7. gas absorption cell according to claim 6, which is characterized in that the mode that is fixedly connected is bonding.
8. gas absorption cell according to claim 6, which is characterized in that it further include light inlet and light-emitting window, described first
End cap is equipped with the first through hole, and the gas distribution part corresponds to and offers gas distribution part at the position of first through hole
Through hole, first reflecting mirror corresponds to and offers passing through for the first reflecting mirror at the position of the through hole of the gas distribution part
Perforation, the through hole of first through hole, the through hole of the gas distribution part and first reflecting mirror be interconnected and
The light inlet is collectively formed, the second end cover is equipped with the second through hole, and gas interflow part corresponds to described second and passes through
The through hole of gas interflow part is offered at the position of perforation, second reflecting mirror corresponds to the through hole of gas interflow part
Position at offer the through hole of the second reflecting mirror, second through hole, the through hole of gas interflow part and described
The through hole of second reflecting mirror is interconnected and the light-emitting window is collectively formed.
9. gas absorption cell according to claim 1, which is characterized in that further include suction nozzle and outlet nozzle, the air inlet
Mouth is installed at the first through hole of the first end cover, and it is described second logical to be installed on the second end cover for the outlet nozzle
At hole.
10. a kind of optical gas analyzer, which is characterized in that absorbed including gas described in any one of claim 1~9
Pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN207282513U (en) * | 2017-09-19 | 2018-04-27 | 浙江绿烨科技股份有限公司 | A kind of component for improving diffusion uniformity |
| CN208432527U (en) * | 2018-07-03 | 2019-01-25 | 青岛海纳光电环保有限公司 | A kind of gas absorption cell and optical gas analyzer |
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| TWM341702U (en) * | 2008-03-14 | 2008-10-01 | Bay Zu Prec Co Ltd | Gas feeding apparatus of vacuum sputtering equipment |
| TWM445758U (en) * | 2012-04-16 | 2013-01-21 | Bay Zu Prec Co Ltd | Gas diffusion device of vacuum equipment |
| CN202585362U (en) * | 2012-05-08 | 2012-12-05 | 北儒精密股份有限公司 | Gas diffusion device of vacuum equipment |
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| CN107064024A (en) * | 2016-12-14 | 2017-08-18 | 山东大学 | It is a kind of to improve the air chamber of accuracy of detection when spectral absorption method measures gas concentration |
| CN106770026A (en) * | 2017-01-23 | 2017-05-31 | 章欣 | Optical gas absorbance pond and optical gas sensor |
| CN207282513U (en) * | 2017-09-19 | 2018-04-27 | 浙江绿烨科技股份有限公司 | A kind of component for improving diffusion uniformity |
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