CN102175608A - Light path absorption pool device for infrared gas analysis - Google Patents
Light path absorption pool device for infrared gas analysis Download PDFInfo
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- CN102175608A CN102175608A CN 201110000623 CN201110000623A CN102175608A CN 102175608 A CN102175608 A CN 102175608A CN 201110000623 CN201110000623 CN 201110000623 CN 201110000623 A CN201110000623 A CN 201110000623A CN 102175608 A CN102175608 A CN 102175608A
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Abstract
The invention relates to a light path absorption pool device for infrared gas analysis, wherein the existing two single-light-path and single-absorption pool structures are changed into a single-light-path serial and double-absorption pool structure, thereby effectively overcoming the measurement errors of a system because of the performance difference of two light sources, light filters and photoelectric sensors by virtue of a simple structure. On the basis of the single-light-path serial and double-absorption pool structure, the single-light-path and single-absorption pool structure or the single-light-path serial and double-absorption pool structure is additionally arranged in parallel, thus the device provided by the invention can be used for expanding the measurement of ingredients or further effectively expanding the measuring range of another group of ingredients, realizing the improvement by utilizing the simple structure and enhancing the full-measuring-range test accuracy of the system and is widely suitable for the detection analysis on the content and concentration of the gas such as carbon, sulfur, methane, methane gas and the like.
Description
Technical field
The present invention relates to infrared gas analysis, pick-up unit, especially the improvement of the structure of the light path absorption cell device of using about infrared gas analysis.
Background technology
Infrared gas analysis all adopted monochromatic light road single suction to receive pool structure with light path absorption cell device in the past.During to the different gasmetry of concentration, be to improve detection sensitivity, must change the length of absorption cell.Promptly, survey the gas of low content, need the length of lengthening absorption cell, survey the gas of high-load, need to shorten absorption cell length, for this reason, existing infrared gas analysis equipment is for enlarging the test content range, all adopt two cover monochromatic light road single suctions to receive pool structure, so just need with two light sources, two optical filters, the photoelectric sensor that connects after comprising also needs two, structure is complicated thereupon, and obviously there is difference in the performance of two cover light sources, optical filter, photoelectric sensor at (comprising the linearity, temperature coefficient etc.), can cause the system testing error inevitably.
Summary of the invention
The object of the invention desires to overcome above-mentioned defective, adopts with better simply architecture advances, improves system's gamut measuring accuracy.Briefly say, two original cover monochromatic light road single suctions are received pool structure change monochromatic light road serial connection biabsorption pool structure into.
The present invention seeks to realize like this, as first scheme of the present invention, infrared gas analysis comprises with light path absorption cell device: base plate, be provided with a cover be used to be coupled infrared modulation light source and printing opacity is arranged, the pedestal of the ventilation and the light path member of gas circuit seal connector, also comprise two different in size, first absorption cell and second absorption cell that become serial connection to be provided with, be used to install first, second absorption cell also allows the infrared emergent light of first absorption cell be incident to first bearing of second absorption cell through its saturating infrared light window, and second bearing that is used to install second absorption cell and is connected with the outer photoelectric detector of this device.Each bearing is equipped with airway.
As the change type scheme of the present invention's first scheme, the absorption cell of the weak point in its two absorption cells different in size can be arranged in the pedestal, perhaps change and be located in second bearing, thereby can save first bearing.
For the expansion infrared gas analysis is measured with the component of equipment, as alternative plan of the present invention, the present invention sets up another set of the 3rd bearing that is used to be coupled another infrared modulation light source and the light path member and corresponding the 3rd absorption cell of another set of therewith light path member of printing opacity, ventilation and gas circuit seal connector is arranged and be used to install the 3rd absorption cell and be connected with this device photoelectric detector outward again on the pedestal of the first scheme device.Consider that from versatility it is identical with second bearing that the structure of the 3rd bearing can be made.
Range for the measurement of another component of expansion infrared gas analysis equipment, as third party's case of the present invention, apparatus of the present invention are on the first scheme basis, remove and on pedestal, to set up second cover be used to be coupled another infrared modulation light source and printing opacity is arranged, outside the light path member of ventilation and gas circuit seal connector, the second cover light path member that this is set up on the also corresponding pedestal, increase into that serial connection is provided with, the 4th absorption cell that length differs and the 5th absorption cell, and corresponding configuration is used to install the 4th, the 5th absorption cell also allows the infrared emergent light of the 4th absorption cell be incident to the 4th bearing of the 5th absorption cell through saturating infrared light window, and the 5th bearing that is used to install the 5th absorption cell and is connected with the outer photoelectric detector of this device.Consider that from versatility the structure of the 4th, the 5th bearing can be made identical with first, second bearing respectively.
The present invention can overcome the systematic measurement error that causes because of two performance differences that overlap light sources, optical filter, photoelectric sensor with succinct structure effectively owing to adopt monochromatic light road serial connection biabsorption pool structure.On the basis of monochromatic light road serial connection biabsorption pool structure, walk abreast again and set up single absorption cell in monochromatic light road or monochromatic light road serial connection biabsorption pool structure, and then make apparatus of the present invention expand the component measurement, perhaps and then effectively expanded the range of the measurement of another component.
For understanding the present invention better, further specify the present invention for embodiment below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the structural representation of first scheme, one embodiment of apparatus of the present invention;
Fig. 2 is the structural representation of the first scheme change type one (short absorption cell is located in the pedestal) embodiment of apparatus of the present invention;
Fig. 3 is the structural representation of another (short absorption cell is located in second bearing) of first scheme change type embodiment of apparatus of the present invention;
Figure
4It is the structural representation of alternative plan one embodiment of apparatus of the present invention;
Figure
5It is the structural representation of third party's case one embodiment of apparatus of the present invention.
Embodiment
Among the embodiment of the present invention's first scheme shown in Figure 1, infrared gas analysis of the present invention comprises with light path absorption cell device: base plate (1) and be contained in pedestal (2) on the base plate (1), first bearing (4), second bearing (6) first absorption cells (3) and second absorption cell (5), the main body (20) of pedestal (2) is provided with the detachable gas circuit seal connector (23) that a cover is used to connect absorption cell, airway (22), the saturating infrared light window light path members such as (21) of the outer infrared modulation light source A of this device is coupled, other has two in a cover different in size, first absorption cell (3) and second absorption cell (5) that become serial connection to be provided with, and be used to install first, second absorption cell also allows the infrared emergent light of first absorption cell (3) be incident to first bearing (4) of second absorption cell (5) through its saturating infrared light window (41), and second bearing (6) that is used to install second absorption cell (5) and is connected with the outer photoelectric detector of this device, pedestal (2) and first, two bearings (4), gas discrepancy end place at (6) corresponding absorption cell is provided with airway (22) respectively, (42), (62).
Fig. 2 is an embodiment of the first scheme change type of apparatus of the present invention, and the absorption cell (3) with the weak point in its two absorption cells different in size is arranged in the pedestal (2).Fig. 3 is among another embodiment of the first scheme change type of apparatus of the present invention, the absorption cell (3) of the weak point in its two absorption cells different in size is arranged in second bearing (6), thereby can saves first bearing (4), and then simplified the structure of apparatus of the present invention.
Among the embodiment of alternative plan of the present invention shown in Figure 4, also set up another set of another infrared modulation light source A and the member and corresponding the 3rd absorption cell of another set of therewith light path member (7) of printing opacity, ventilation and gas circuit sealing arranged and be used to the 3rd bearing (8) the 3rd absorption cell (7) being installed and being connected of being used to be coupled on the pedestal (2) of infrared gas analysis of the present invention with light path absorption cell device with this device photoelectric detector B outward.Among this embodiment, be to strengthen the versatility of tool member, the spy allows the structure of the 3rd bearing (8) make identical with described second bearing (6).
Among the embodiment of third party's case of the present invention shown in Figure 5, on the pedestal (2) of infrared gas analysis of the present invention with light path absorption cell device, also set up second cover be used to be coupled another infrared modulation light source A and have a printing opacity like that with Fig. 4 embodiment, the light path member of ventilation and gas circuit seal connector, and corresponding pedestal (2) is gone up the second cover light path member that this is set up, increase into that serial connection is provided with, the 4th absorption cell (9) that length differs and the 5th absorption cell (11) also increase for this reason and are used to install the 4th, the 5th absorption cell also allows the infrared emergent light of the 4th absorption cell (9) be incident to the 4th bearing (10) of the 5th absorption cell (10) through its saturating infrared light window, and the 5th bearing (12) that is used to install the 5th absorption cell (11) and is connected with the outer photoelectric detector of this device.Equally, be to strengthen the versatility of tool member, structure identical with described first bearing (4), second bearing (6) respectively that also allows the 4th bearing (10), the 5th bearing (12).
The foregoing description device, light path absorption cell device has all been realized overcoming the systematic measurement error that causes because of two performance differences that overlap light sources, optical filter, photoelectric sensor effectively with succinct structure as compared with the past.On the basis of monochromatic light road serial connection biabsorption pool structure, walk abreast again and set up single absorption cell in monochromatic light road or monochromatic light road serial connection biabsorption pool structure, and then make apparatus of the present invention expand the component measurement, perhaps and then effectively expanded the range of the measurement of another component.
The implication of label in the accompanying drawing: 1: base plate; 2: pedestal; 3: the first absorption cells; 4: the first bearings; 5: the second absorption cells; 6: the second bearings; 7: the three absorption cells; 8: the three bearings; 9: the four absorption cells; 10: the four bearings; 11: the five absorption cells; 12: the five bearings; 20: Base body; 60: the second support body; 214161: saturating infrared light window; 22,42,62: airway; 23,43,63: the gas circuit seal connector.
Claims (7)
1. an infrared gas analysis is with light path absorption cell device, comprise: base plate (1), be provided with a cover be used to be coupled infrared modulation light source and printing opacity is arranged, the pedestal (2) of the light path member of ventilation and gas circuit seal connector, it is characterized in that: also comprise two different in size, first absorption cell (3) and second absorption cell (5) that become serial connection to be provided with, be used to install first, second absorption cell also allows the infrared emergent light of first absorption cell (3) be incident to first bearing (4) of second absorption cell (5) through its saturating infrared light window (41), and second bearing (6) that is used to install second absorption cell (5) and is connected with the outer photoelectric detector of this device, described bearing is equipped with airway.
2. infrared gas analysis according to claim 1 light path absorption cell device, it is characterized in that: the short-and-medium absorption cell of described two absorption cells is installed in the pedestal (2), and need not to install with first bearing (4).
3. infrared gas analysis according to claim 1 light path absorption cell device, it is characterized in that: the short-and-medium absorption cell of described two absorption cells is installed on second bearing (6), and need not to install with first bearing (4).
According to claim 1 or 2 or 3 described infrared gas analysis with light path absorption cell devices, it is characterized in that: also set up on the pedestal (2) and another set ofly be used to be coupled another infrared modulation light source and the light path member and corresponding the 3rd absorption cell of another set of therewith light path member (7) of printing opacity, ventilation and gas circuit seal connector arranged and be used to the 3rd bearing (8) the 3rd absorption cell (7) being installed and being connected with this device photoelectric detector outward.
5. infrared gas analysis according to claim 4 light path absorption cell device, it is characterized in that: the structure of described the 3rd bearing (8) is identical with described second bearing (6).
6. according to claim 1, perhaps 2, perhaps 3 described infrared gas analysis are with light path absorption cell devices, it is characterized in that: on pedestal (2), set up second cover be used to be coupled another infrared modulation light source and printing opacity is arranged, outside the light path member of ventilation and gas circuit seal connector, also corresponding pedestal (2) is gone up this second cover light path member of setting up, sets up into that serial connection is provided with, the 4th absorption cell (9) that length differs and the 5th absorption cell (11), be used to install the 4th, the 5th absorption cell also allows the infrared emergent light of the 4th absorption cell (9) be incident to the 4th bearing (10) of the 5th absorption cell (11) through its saturating infrared light window, and the 5th bearing (12) that is used to install the 5th absorption cell (11) and is connected with the outer photoelectric detector of this device.
7. infrared gas analysis according to claim 6 is characterized in that with light path absorption cell device: the structure of described the 4th bearing (10), the 5th bearing (12) is identical with described first bearing (4), second bearing (6) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110000623 CN102175608A (en) | 2011-01-05 | 2011-01-05 | Light path absorption pool device for infrared gas analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110000623 CN102175608A (en) | 2011-01-05 | 2011-01-05 | Light path absorption pool device for infrared gas analysis |
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| CN102175608A true CN102175608A (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110000623 Pending CN102175608A (en) | 2011-01-05 | 2011-01-05 | Light path absorption pool device for infrared gas analysis |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424618A (en) * | 2014-09-09 | 2016-03-23 | 赛默飞世尔（上海）仪器有限公司 | Optical detection apparatus with characteristic of sensitivity improving, and optical detection method with characteristic of sensitivity improving |
| CN106896061A (en) * | 2015-12-18 | 2017-06-27 | 无锡市金义博仪器科技有限公司 | A kind of pair of air chamber structure |
| CN108007885A (en) * | 2017-12-21 | 2018-05-08 | 苏州汉策能源设备有限公司 | A kind of light path can expand formula and use pattern gas pond |
| CN109187353A (en) * | 2018-09-14 | 2019-01-11 | 长沙开元仪器有限公司 | A kind of absorption pool device |
| CN113740283A (en) * | 2021-08-29 | 2021-12-03 | 咸宁南玻光电玻璃有限公司 | Method for measuring low-content boron oxide in glass by photometric analysis method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01174942A (en) * | 1987-12-29 | 1989-07-11 | Horiba Ltd | Absorption analyzer |
| JP2000039394A (en) * | 1998-07-23 | 2000-02-08 | Shimadzu Corp | Full organic carbon meter |
| CN2426148Y (en) * | 2000-07-04 | 2001-04-04 | 北京天虹智能仪表有限责任公司 | Infrared sulfur dioxide analysis instrument |
-
2011
- 2011-01-05 CN CN 201110000623 patent/CN102175608A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01174942A (en) * | 1987-12-29 | 1989-07-11 | Horiba Ltd | Absorption analyzer |
| JP2000039394A (en) * | 1998-07-23 | 2000-02-08 | Shimadzu Corp | Full organic carbon meter |
| CN2426148Y (en) * | 2000-07-04 | 2001-04-04 | 北京天虹智能仪表有限责任公司 | Infrared sulfur dioxide analysis instrument |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424618A (en) * | 2014-09-09 | 2016-03-23 | 赛默飞世尔（上海）仪器有限公司 | Optical detection apparatus with characteristic of sensitivity improving, and optical detection method with characteristic of sensitivity improving |
| CN106896061A (en) * | 2015-12-18 | 2017-06-27 | 无锡市金义博仪器科技有限公司 | A kind of pair of air chamber structure |
| CN108007885A (en) * | 2017-12-21 | 2018-05-08 | 苏州汉策能源设备有限公司 | A kind of light path can expand formula and use pattern gas pond |
| CN109187353A (en) * | 2018-09-14 | 2019-01-11 | 长沙开元仪器有限公司 | A kind of absorption pool device |
| CN109187353B (en) * | 2018-09-14 | 2021-04-30 | 长沙开元仪器有限公司 | Absorption tank device |
| CN113740283A (en) * | 2021-08-29 | 2021-12-03 | 咸宁南玻光电玻璃有限公司 | Method for measuring low-content boron oxide in glass by photometric analysis method |
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Application publication date: 20110907 |