CN108007885A - A kind of light path can expand formula and use pattern gas pond - Google Patents
A kind of light path can expand formula and use pattern gas pond Download PDFInfo
- Publication number
- CN108007885A CN108007885A CN201711391976.6A CN201711391976A CN108007885A CN 108007885 A CN108007885 A CN 108007885A CN 201711391976 A CN201711391976 A CN 201711391976A CN 108007885 A CN108007885 A CN 108007885A
- Authority
- CN
- China
- Prior art keywords
- gas
- light path
- gas pond
- light
- tube body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- G01N21/3103—Atomic absorption analysis
-
- 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
Abstract
It can expand formula the present invention relates to a kind of light path and use pattern gas pond,Main body includes gas pond tube body,Come in and go out light connector,Into air outlet adapter,Light path component,To Threaded Connector Coupling,Seal plug and sealing ring,It is respectively arranged with the discrepancy optical port of gas pond tube body and the connector that comes in and goes out,The discrepancy light connector mounting base being consistent is assembled in male connection on docking silk head,Tube wall is equipped with air inlet/outlet and pressure detecting mouth,Can be by Threaded Connector Coupling interconnection gas pond tube body,Lengthen and extend light path,Improve working sensitivity,By air inlet/outlet and pressure detecting mouth useless among seal plug closure,Ensure the gas pond tube body basic performance after concatenation,Thus the single style gas pond of light path formed includes two or branched gas pond tube body,Extend light path,Improve the sensitivity of detection polluted gas,Make Concentration Testing scope wider,Low concentration pollution field of gas detection, which is applied to, for the single style gas pond of the practical light path of traditional economy has cleared away technology barrier,Bring using the more convenient and flexible stronger good effect of property.
Description
Technical field
It is particularly a kind of to be easy to that light path is altered as desired, meets that different height are dense the present invention relates to gas detection technology field
The light path of degree gas testing requirements can expand formula and use pattern gas pond.
Background technology
Sample gas pond is a kind of to be developed, quilt at present based on various gas molecules all characteristics with respective specific absorption spectrum
The polluted gas concentration detection apparatus being widely used in environmentally friendly flue gas monitoring system.Currently used sample gas pond is that light path is consolidated
Fixed pattern, mainly there is light path Zigzag type long light path sample gas pond and the shorter single style gas pond of light path of light path.The light path is turned back
The characteristics of formula long light path sample gas pond is that overall structure is relatively complicated and cost is also higher, since its incident optical energy is in gas pond
Multiple reflections fold back, the light path light path formed are longer, therefore fully absorb spectrum easy to tested gas, thus working sensitivity compared with
Height, detects that the concentration range of polluted gas is wider, not only can detect the relatively low polluted gas of concentration, but also the dirt that detectable concentration is higher
Gas is contaminated, there is very strong operability, its shortcoming is that antijamming capability is poor, due to multiple reflections fold back style gas pond
Light channel structure it is relatively complicated, it is extremely quite harsh the positioning precision requirement each light path component, no matter sample gas pond
The expanding with heat and contract with cold of itself component, the vibrations of surrounding environment or the change of temperature in the course of work, can cause to trigger optical component
Minute angle offset, light path is deviateed normal orbit, so that the job stability that causes to influence sample gas pond and detection data
Reliability.And the single style gas pond of light path that light path is shorter, because it is with simple in structure and reasonable, reliable operation and stability
The good, advantage such as easy to use and cost is low and as most widely used polluted gas detection means currently on the market, its is unique
Shortcoming is that light path is shorter, is unfavorable for tested gas and fully absorbs spectrum, thus working sensitivity is relatively low, is only suitable for detecting
The higher polluted gas of concentration.In addition, working sensitivity and optical path length based on the single style gas pond of light path are closely related, and
Optical path length is again related to the length of gas pond tube body, for this reason, a variety of gas ponds that industry develops using detection sensitivity as series are managed
The sample gas pond that body length is different, is selected for scene, brings good effect easy to use and economical and practical to a certain extent.
But find in practice：Due to being changed during polluted gas concentration in monitoring, select difficulty larger, often occur tested
The pollution air concentration of survey just falls near sensitivity index, causes the situation of detection data inaccuracy, so as to cause to influence ring
The functional reliability of flue gas monitoring system is protected, brings a degree of work to perplex to environmental protection administration.In addition, select for convenience
With every environmentally friendly flue gas monitoring system certainly will being given to be equipped with a variety of optical path lengths and the sample gas of sensitivity at the same time in working site
Pond, not only needs more economic input, increases the workload of field management, but also also brings along a degree of resource and overstock
Waste.So consider to owe ideal from economy and point of view of practicability.
The content of the invention
The invention aims to overcome the single style gas pond of the shorter light path of existing light path institute in terms of operability
Existing deficiency, there is provided a kind of structure is relatively reasonable, operability is strong, can meet to actually use need maneuverability
Ask, and can ensure that the light path of reliably working can expand formula and use pattern gas pond.
The light path of the present invention, which can expand formula and use pattern gas tank main body and include gas pond tube body, incident light connector, emergent light, to be connect
Head, inlet suction port, air outlet adapter, pressure sensor connector and the light path component comprising collimating mirror and focus lamp, are characterized in that sample
Gas tank main body also includes to Threaded Connector Coupling, seal plug and O-ring seal, wherein：The gas pond tube body main body is in hollow circle
Tubular, its one end are light inputting end mouth, and the other end is optical port, are respectively arranged with light inputting end mouth and the port for going out optical port
By sealing ring resettlement groove and the incident light connector mounting base that forms of assembling internal thread circle and with the incident light connector mounting base
The emergent light connector mounting base that structure size is consistent, is provided with air inlet, at nearly light extraction end on nearly light inputting end mouth side tube wall
The gas outlet identical with the inlet structure size and pressure detecting mouth are provided with the tube wall of mouth side；The incident light
Connector includes the collimating mirror bearing with the spacing assembling edge A of male connection A and outer gibbosity, is arranged on collimating mirror bearing
On collimating mirror and intelligent acess port A；The emergent light connector includes band male connection B and the spacing dress of outer gibbosity
Focus lamp bearing, upper band with edge B are corresponding with the spacing assembling edge B to assemble the spacing assembling side of outer gibbosity being consistent
Along C focusing mirror support and be arranged on focus on mirror support on focus lamp and intelligent acess port B；It is described to Threaded Connector Coupling
Main body fills the post of silk with the hexagonal that the chamber footpath size of the gas pond tube body is consistent with male connection C, chamber footpath by both-end；Institute
The shape of working surface size for the seal plug stated and the installation pore size of the air inlet, gas outlet, pressure detecting mouth are distinguished
Sealing assembling is consistent.
In addition, it is embedded with the incident light connector mounting base and the sealing ring resettlement groove of emergent light connector mounting base
O-ring seal, assembling internal thread circle and the male connection A on the collimating mirror bearing, the external screw thread on focus lamp bearing
Connector B and being assembled to the both-end male connection C on Threaded Connector Coupling is consistent.
During work, incident light is imported by intelligent acess mouth A, and collimated mirror is imported in sample gas cell cavity after being corrected to directional light,
Contacted with tested gas and be predominantly absorbed after partial spectrum energy again line focus mirror accumulate point, received by optical fiber after be guided into light
Spectrometer is analyzed, and outgoing spectrum is compared with original incident spectrum, its residual quantity is the amount of spectrum that tested gas sponges, accordingly
Predict the concentration and attribute of tested gas.
In use, when tested gas concentration is higher, can be detected with the single style gas pond of the light path singly propped up；When tested
, can be by Threaded Connector Coupling interconnection gas pond pipe when gas concentration is less than the detection sensitivity limit value in the light path single sample gas pond singly propped up
Body, seal by seal plug block among gas outlet, pressure detecting mouth and air inlet, make two gas pond tube bodies continue interconnection,
Form by two or branched gas pond tube body concatenates, light path is longer, detection sensitivity is higher, Concentration Testing scope is wider, can meet
The single style gas pond of Novel light path of a variety of requirements.
Light path of the present invention based on above-mentioned design can expand formula and use pattern gas pond, since the light path in existing short light path is single
The length of gas pond tube body is lengthened on the basis of the component of style gas pond by way of the several gas pond tube bodies that continue on demand, extends light path
Optical path length, so as to improve the detection sensitivity in sample gas pond, expand Concentration Testing scope, make the single style gas pond of light path can be with
Be related to the detection field of low concentration polluted gas, it might even be possible to because reaching the detection effect in Zigzag type long light path sample gas pond and
Replace.Obviously, light path of the invention can expand formula and use pattern gas pond, due to having continued to use the single style gas pond of existing light path
Basic structure and operating mode, increase only that structure is extremely simple and cost is very low to Threaded Connector Coupling and seal plug, thus always
Body structure is still very simple, cost increase is few, but also brings stronger operability and the flexibility used, is
The single style gas pond of light path of the existing short light path of economical and practical type gives full play to the advantage of its reliable operation and stabilization, expands deeply
To low concentration pollution field of gas detection, provided to configure environmentally friendly flue gas monitoring system at low cost and reducing daily environmental protection spending
Technical guarantee, hence it is evident that there is very strong practicality and wide market application foreground.
Brief description of the drawings
Fig. 1 is the basic structure schematic diagram with the embodiment of the present invention；
Fig. 2 is the basic structure schematic diagram under light path extended mode of the embodiment of the present invention；
Fig. 3 is the sectional view of Fig. 2；
Fig. 4 is the structure diagram of gas pond tube body in the embodiment of the present invention.
In figure：
1. 112. air inlet of gas pond 11. light inputting end mouth of tube body, 111. incident light connector mounting base
12. go out 121. 122. gas outlet of emergent light connector mounting base of optical port, 123. pressure detecting mouth
2. 21. collimating mirror bearing of incident light connector, 211. male connection A, 212 spacing assembling edge A
22. 311. male connection B of intelligent acess port 3. emergent light connectors of A, 31. focus lamp bearing
312. spacing assembling edge B 32. focus on the spacing assembling edge C of mirror support 321.
33. 6. pressure sensor connector of intelligent acess port 4. inlet suction ports of B, 5. air outlet adapter
7. 71. collimating mirror of light path component, 72. focus lamp 8. is to 81. male connection C of Threaded Connector Coupling
9. 10. O-ring seal of seal plug.
Embodiment
The invention will be further described with exemplary embodiments below in conjunction with the accompanying drawings.
In Fig. 1 to Fig. 4, light path of the invention, which can expand formula and use pattern gas tank main body, includes gas pond tube body 1, incident light
Connector 2, emergent light connector 3, inlet suction port 4, air outlet adapter 5, pressure sensor connector 6 and include collimating mirror 71 and focus lamp 72
Light path component 7, be characterized in that sample gas tank main body also includes to Threaded Connector Coupling 8, seal plug 9 and O-ring seal 10, wherein：
1 main body of gas pond tube body is in hollow cylindrical, and its one end is light inputting end mouth 11, and the other end is optical port 12, is entering light
The incident light being made of sealing ring resettlement groove and assembling internal thread circle is respectively arranged with port 11 and the port for going out optical port 12
Connector mounting base 111 and the emergent light connector mounting base 121 being consistent with 111 structure size of incident light connector mounting base,
Be provided with air inlet 112 on nearly 11 side tube wall of light inputting end mouth, closely go out 12 side tube wall of optical port on be provided with it is described
The identical gas outlet 122 of 112 structure size of air inlet and pressure detecting mouth 123；The incident light connector 2 includes band
The collimating mirror bearing 21 of male connection A 211 and the spacing assembling edge A 212 of outer gibbosity, be arranged on collimating mirror bearing 21
Collimating mirror 71 and intelligent acess port A22；The emergent light connector 3 includes band male connection B 311 and outer gibbosity
Focus lamp bearing 31, upper the band assembling corresponding with the spacing assembling edge B 312 of spacing assembling edge B 312 is consistent outer
The focusing mirror support 32 of the spacing assembling edge C 321 of convex and the focus lamp 72 being arranged on focusing mirror support 32 and optical fiber connect
Inbound port B 33；It is described to 8 main body of Threaded Connector Coupling by both-end with male connection C 81, chamber footpath and the gas pond tube body 1
The hexagonal that chamber footpath size is consistent fills the post of silk；The shape of working surface size of the seal plug 9 and the air inlet 112,
Gas outlet 122, the installation pore size of pressure detecting mouth 123 seal assembling and are consistent respectively.
In addition, in the incident light connector mounting base 111 and the sealing ring resettlement groove of emergent light connector mounting base 121
It is embedded with O-ring seal 10, assembling internal thread circle and the male connection A211 on the collimating mirror bearing 21, focus lamp branch
Male connection B311 and being assembled to the both-end male connection C81 on Threaded Connector Coupling 8 on seat 31 is consistent.
During work, incident light is imported by intelligent acess mouth A 22, and collimated mirror 71 imports sample gas pond after being corrected to directional light
Intracavitary, contacted with tested gas and be predominantly absorbed after partial spectrum energy again line focus mirror accumulate point, received by optical fiber after lead
Spectrometer analysis are introduced, outgoing spectrum is compared with original incident spectrum, its residual quantity is the spectrum that tested gas sponges
Amount, predicts the concentration and attribute of tested gas accordingly.
In use, when tested gas concentration is higher, can be detected with the single style gas pond of the light path singly propped up；When tested
When gas concentration is less than the detection sensitivity limit value in the light path single sample gas pond singly propped up, it can be managed by gas pond is interconnected to Threaded Connector Coupling 8
Body 1, seal blocking middle gas outlet 122, pressure detecting mouth 123 and air inlet 112 by seal plug 9, makes two gas ponds pipes
Body 1 continue interconnection, form by two or branched gas pond tube body 1 concatenates, light path is longer, detection sensitivity is higher, Concentration Testing model
Enclose the single style gas pond of Novel light path that is wider, can meeting a variety of requirements.
Claims (3)
1. a kind of light path, which can expand formula, uses pattern gas pond, main body includes gas pond tube body (1), incident light connector (2), emergent light and connects
Head (3), inlet suction port (4), air outlet adapter (5), pressure sensor connector (6) and comprising collimating mirror (71) and focus lamp (72)
Light path component (7), it is characterised in that sample gas tank main body also includes to Threaded Connector Coupling (8), seal plug (9) and O-ring seal
(10), wherein：
Described gas pond tube body (1) main body is in hollow cylindrical, and its one end is light inputting end mouth (11), and the other end is optical port
(12), in light inputting end mouth (11) and go out in the ports of optical port (12) to be respectively arranged with by sealing ring resettlement groove and assembling internal thread
Enclose the incident light connector mounting base (111) formed and go out with what described incident light connector mounting base (111) structure size was consistent
Light connector mounting base (121) is penetrated, air inlet (112) is provided with the tube wall of nearly light inputting end mouth (11) side, is closely going out optical port
(12) gas outlet (122) identical with the air inlet (112) structure size and pressure detecting mouth are provided with the tube wall of side
(123)；
The incident light connector (2) includes band male connection A (211) and the spacing assembling edge A of outer gibbosity
(212) collimating mirror bearing (21), the collimating mirror 71 and intelligent acess port A (22) being arranged on collimating mirror bearing (21)；
The emergent light connector (3) includes band male connection B (311) and the spacing assembling edge B (312) of outer gibbosity
Focus lamp bearing (31), upper band is corresponding with the spacing assembling edge B (312) assembles the spacing assembling of outer gibbosity that is consistent
The focusing mirror support (32) of edge C (321) and the focus lamp (72) being arranged on focusing mirror support (32) and intelligent acess port
B (33)；
It is described to Threaded Connector Coupling (8) main body by both-end with male connection C (81), chamber footpath and the chamber of the gas pond tube body (1)
The hexagonal that footpath size is consistent fills the post of silk；
The shape of working surface size of the seal plug (9) and the air inlet (112), gas outlet (122), pressure detecting
The installation pore size of mouth (123) seals assembling and is consistent respectively；
In use, when tested gas concentration is higher, can be detected with the single style gas pond of the light path singly propped up；When tested gas
, can be by Threaded Connector Coupling (8) interconnection gas pond tube body when concentration is less than the detection sensitivity limit value in the light path single sample gas pond singly propped up
(1), gas outlet (122), pressure detecting mouth (123) and air inlet (112) among blocking are sealed by seal plug (9), makes two
Branch gas pond tube body (1) continue interconnection, form by two or branched gas pond tube body (1) concatenation, light path is longer, detection sensitivity compared with
It is high, Concentration Testing scope is wider, the single style gas pond that can meet the Novel light path of a variety of requirements.
2. light path according to claim 1, which can expand formula, uses pattern gas pond, it is characterised in that the incident light connector peace
O-ring seal (10) is embedded with dress seat (111) and the sealing ring resettlement groove of emergent light connector mounting base (121).
3. light path according to claim 1, which can expand formula, uses pattern gas pond, it is characterised in that the incident light connector peace
Fill seat (111) and with assembling internal thread circle and the collimating mirror bearing in the incident light connector mounting base (111)
(21) male connection B (311) on male connection A (211), focus lamp bearing (31) on and to Threaded Connector Coupling (8)
On both-end male connection C (81) assemble and be consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711391976.6A CN108007885A (en) | 2017-12-21 | 2017-12-21 | A kind of light path can expand formula and use pattern gas pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711391976.6A CN108007885A (en) | 2017-12-21 | 2017-12-21 | A kind of light path can expand formula and use pattern gas pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108007885A true CN108007885A (en) | 2018-05-08 |
Family
ID=62060354
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711391976.6A Pending CN108007885A (en) | 2017-12-21 | 2017-12-21 | A kind of light path can expand formula and use pattern gas pond |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008838A (en) * | 2021-03-17 | 2021-06-22 | 华北电力大学 | Optical cavity, heating cavity, measuring device and liquid medium transmission spectrum measuring system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201876411U (en) * | 2010-11-16 | 2011-06-22 | 安徽皖仪科技股份有限公司 | Long-optical path air chamber device |
| CN102175608A (en) * | 2011-01-05 | 2011-09-07 | 上海德凯仪器有限公司 | Light path absorption pool device for infrared gas analysis |
| CN103047501A (en) * | 2012-11-28 | 2013-04-17 | 杭州安杰诺经贸有限公司富阳分公司 | Pneumatic rotary joint |
| CN207623231U (en) * | 2017-12-21 | 2018-07-17 | 苏州汉策能源设备有限公司 | A kind of light path can expand formula and be mostly used pattern gas pond |
-
2017
- 2017-12-21 CN CN201711391976.6A patent/CN108007885A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201876411U (en) * | 2010-11-16 | 2011-06-22 | 安徽皖仪科技股份有限公司 | Long-optical path air chamber device |
| CN102175608A (en) * | 2011-01-05 | 2011-09-07 | 上海德凯仪器有限公司 | Light path absorption pool device for infrared gas analysis |
| CN103047501A (en) * | 2012-11-28 | 2013-04-17 | 杭州安杰诺经贸有限公司富阳分公司 | Pneumatic rotary joint |
| CN207623231U (en) * | 2017-12-21 | 2018-07-17 | 苏州汉策能源设备有限公司 | A kind of light path can expand formula and be mostly used pattern gas pond |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008838A (en) * | 2021-03-17 | 2021-06-22 | 华北电力大学 | Optical cavity, heating cavity, measuring device and liquid medium transmission spectrum measuring system |
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