CN202886272U - Flue gas analyzer based tube-corner prism - Google Patents
Flue gas analyzer based tube-corner prism Download PDFInfo
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- CN202886272U CN202886272U CN 201220570891 CN201220570891U CN202886272U CN 202886272 U CN202886272 U CN 202886272U CN 201220570891 CN201220570891 CN 201220570891 CN 201220570891 U CN201220570891 U CN 201220570891U CN 202886272 U CN202886272 U CN 202886272U
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- air chamber
- flue gas
- optical fiber
- gas analyzer
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Abstract
The utility model provides a flue gas analyzer based a tube-corner prism. The flue gas analyzer comprises a light source, a spectrograph, a Y-type optical fiber and an air chamber, wherein three branches of the Y-type optical fiber are respectively connected with one ends of the light source, the spectrograph and the air chamber, one end (which is connected with the branches of the Y-type optical fiber) in the air chamber is provided with a collimating lens, the other end in the air chamber is provided with the cube-corner prism, and an air inlet and an air outlet are formed in the outer wall in the middle of the air chamber. The flue gas analyzer is simple in structure, can not be interfered by moisture, and low in installing precision requirement. A light path returns according to the original way due to the cube-corner prism, and the effective optical distance can be doubled on the basis that the size of the air chamber is not changed, so that the lower limit of the measurement precision and the concentration can be improved, and the detecting requirement of NO and SO2 in low-concentration pollution gas can be achieved at the same time, and therefore, a plurality of types of gases can be detected by the flue gas analyzer at the same time, the flue gas analyzer realizes the transmission of transmitting and receiving of light by only one Y-type optical fiber, the use quantity of the optical fiber can be saved, and the manufacture cost can be reduced.
Description
Technical field
The utility model relates to a kind of flue gas inspection device, specifically, is a kind of flue gas analyzer based on prism of corner cube.
Background technology
Along with the quickening of China's industrialization paces, atmospheric pollution is also day by day serious, the SO of burning and exhausting
2, NO and fly ash granule be the main source that causes atmospheric pollution.During 12, country has all formulated compulsory desulfurization, out of stock pollutant emission standard to industries such as thermal power plant, iron and steel.The sulphuric dioxide emission reduction work is shouldered heavy responsibilities, and oxides of nitrogen reduces discharging and brings into schedule.Use optical detecting method to detect flue gas, have the advantages such as response is fast, non-secondary pollution.In optical detection, ultraviolet absorption method has the advantages that the aqueous vapor of not being subjected to is disturbed, accuracy of detection is high, resolution is high.
Use at present ultraviolet absorption method to use single air chamber to carry out flue gas inspection, detection mode is the monochromatic light journey, and light path is short, can not detect NO and SO in the low concentration pollutant
2, measuring accuracy can not satisfy new in the world for the testing requirement of low concentration pollutant.
The utility model content
The utility model uses single air chamber to carry out flue gas inspection for present utilization ultraviolet absorption method, and detection mode is the monochromatic light journey, and light path is short, can not detect NO and SO in the low concentration pollutant
2, measuring accuracy can not satisfy new in the world for the shortcomings such as testing requirement of low concentration pollutant, has designed a kind of flue gas analyzer based on prism of corner cube.
Flue gas analyzer based on prism of corner cube of the present utility model, comprise light source, spectrometer, y-type optical fiber, air chamber, three branches of y-type optical fiber are connected respectively an end and are connected with light source, spectrometer and air chamber, an end that is connected with y-type optical fiber branch in the described air chamber is equipped with collimation lens, the other end is equipped with prism of corner cube in the air chamber, is provided with air intake opening and gas outlet on the outer wall at air chamber middle part.
Preferably, the axis of the axis of prism of corner cube and collimation lens is located on the same line.
The beneficial effects of the utility model are: based on the flue gas analyzer of prism of corner cube, simple in structure, be not subjected to moisture interference, installation accuracy requires low, utilize prism of corner cube that light path is returned by former road, on the basis that does not change the air chamber size effective light path is doubled, improved measuring accuracy and concentration limit, reached simultaneously NO and SO in the low concentration pollution gas
2Testing requirement, make flue gas analyzer can detect simultaneously multiple gases, flue gas analyzer only uses y-type optical fiber to realize transmitting and receiving the transmission of light, has saved the optical fiber use amount, has reduced manufacturing cost.
Description of drawings
Accompanying drawing 1 is the structural representation based on the flue gas analyzer of prism of corner cube;
Accompanying drawing 2 is the sectional structure chart based on the flue gas analyzer air chamber of prism of corner cube.
Embodiment
Flue gas analyzer based on prism of corner cube of the present utility model, shown in Fig. 1 to 2, comprise light source 1, spectrometer 2, y-type optical fiber 3, air chamber 4, three branches of y-type optical fiber 3 are connected with the end that light source 1, spectrometer 2 are connected with air chamber respectively, an end that is connected with y-type optical fiber 3 branches in the described air chamber 4 is equipped with collimation lens 5, the air chamber 4 interior other ends are equipped with prism of corner cube 6, are provided with air intake opening 7 and gas outlet 8 on the outer wall at air chamber 4 middle parts.
The axis of the axis of prism of corner cube 6 and collimation lens 5 is located on the same line.
Tested flue gas enters air chamber 4 by air intake opening 7, then flow out by gas outlet 8, light source 1 sends light beam, light is transferred in the air chamber by y-type optical fiber 3, light enter air chamber 4 interior after, be collimated into directional light by collimation lens 5 first, directional light is by tested flue gas directive prism of corner cube 6, prism of corner cube 6 reflects directional light by former incident angle, the directional light that is reflected is again penetrated by tested flue gas and is got back to collimation lens 5, and to y-type optical fiber 3, the light after the focusing is transferred to spectrometer 2 by y-type optical fiber 3 to collimation lens 5 with parallel light focusing, 2 pairs of light that receive of spectrometer are measured and are analyzed, and calculate the content of various compositions in the tested flue gas.
Light in air chamber 4 is through reflection, and twice the two optical-path light-paths of formation have increased effective path length by tested flue gas, have improved resolution and concentration limit that gas detects.Because when the vertical extinction material by a certain even non-scattering of a branch of collimated monochromatic ligth, its absorbance is directly proportional with concentration and the absorber thickness of extinction material, so increase the thickness of absorption layer, namely increase the length that detects light path, can realize the detection to the lower concentration dusty gas, realize NO and SO in the low concentration pollution gas
2Detection.
Claims (2)
1. flue gas analyzer based on prism of corner cube, it is characterized in that, comprise light source (1), spectrometer (2), y-type optical fiber (3), air chamber (4), three branches of y-type optical fiber (3) respectively with light source (1), spectrometer (2) is connected 4 with air chamber) an end connect, an end that is connected with y-type optical fiber (3) branch in the described air chamber (4) is equipped with collimation lens (5), the interior other end of air chamber (4) is equipped with prism of corner cube (6), is provided with air intake opening (7) and gas outlet (8) on the outer wall at air chamber (4) middle part.
2. the flue gas analyzer based on prism of corner cube according to claim 1 is characterized in that, the axis of the axis of prism of corner cube (6) and collimation lens (5) is located on the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220570891 CN202886272U (en) | 2012-11-02 | 2012-11-02 | Flue gas analyzer based tube-corner prism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220570891 CN202886272U (en) | 2012-11-02 | 2012-11-02 | Flue gas analyzer based tube-corner prism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886272U true CN202886272U (en) | 2013-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220570891 Expired - Fee Related CN202886272U (en) | 2012-11-02 | 2012-11-02 | Flue gas analyzer based tube-corner prism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202886272U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152207A (en) * | 2018-03-19 | 2018-06-12 | 杭州因诺维新科技有限公司 | Telemetering motor vehicle tail system |
| CN110426349A (en) * | 2019-08-30 | 2019-11-08 | 青岛众瑞智能仪器有限公司 | A kind of method and its gas chamber, measuring instrument improving flue gas analyzer stability |
| CN110501298A (en) * | 2019-08-30 | 2019-11-26 | 青岛众瑞智能仪器有限公司 | A kind of method improving hot wet process light path system stability and its gas chamber, measuring instrument |
| CN111912806A (en) * | 2020-06-18 | 2020-11-10 | 深圳市安车检测股份有限公司 | NOx gas concentration detection platform |
| CN113252595A (en) * | 2021-05-19 | 2021-08-13 | 广州特种承压设备检测研究院 | Boiler efficiency environmental protection synthesizes intelligent detector |
-
2012
- 2012-11-02 CN CN 201220570891 patent/CN202886272U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152207A (en) * | 2018-03-19 | 2018-06-12 | 杭州因诺维新科技有限公司 | Telemetering motor vehicle tail system |
| CN110426349A (en) * | 2019-08-30 | 2019-11-08 | 青岛众瑞智能仪器有限公司 | A kind of method and its gas chamber, measuring instrument improving flue gas analyzer stability |
| CN110501298A (en) * | 2019-08-30 | 2019-11-26 | 青岛众瑞智能仪器有限公司 | A kind of method improving hot wet process light path system stability and its gas chamber, measuring instrument |
| CN110501298B (en) * | 2019-08-30 | 2023-05-30 | 青岛众瑞智能仪器股份有限公司 | Method for improving stability of hot-wet optical path system, air chamber and measuring instrument thereof |
| CN110426349B (en) * | 2019-08-30 | 2023-05-30 | 青岛众瑞智能仪器股份有限公司 | Method for improving stability of flue gas analyzer, gas chamber and measuring instrument thereof |
| CN111912806A (en) * | 2020-06-18 | 2020-11-10 | 深圳市安车检测股份有限公司 | NOx gas concentration detection platform |
| CN113252595A (en) * | 2021-05-19 | 2021-08-13 | 广州特种承压设备检测研究院 | Boiler efficiency environmental protection synthesizes intelligent detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20171102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |