CN2722239Y - Reacting chamber of automatic sulfur doixide monitor - Google Patents
Reacting chamber of automatic sulfur doixide monitor Download PDFInfo
- Publication number
- CN2722239Y CN2722239Y CN 200420016505 CN200420016505U CN2722239Y CN 2722239 Y CN2722239 Y CN 2722239Y CN 200420016505 CN200420016505 CN 200420016505 CN 200420016505 U CN200420016505 U CN 200420016505U CN 2722239 Y CN2722239 Y CN 2722239Y
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- Prior art keywords
- chamber
- reacting chamber
- taper
- sulfur dioxide
- reactor chamber
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Abstract
The utility model provides a reacting chamber of automatic sulfur dioxide monitor, belonging to the technical field of the physical measuring instrument, used for solving the technical problems that the reacting chamber has simple and compact structure and reasonable air flowing direction, and the reacting chamber comprises an incident optical component, the cavity body of the reacting chamber, a conical converging cavity, an emergent optical component, a reference photoelectric tube, etc. The utility model is characterized in that the cavity body of the reacting chamber is provided with a light shielding plate which is fixed on the front wall of the cavity body of the reacting chamber and is positioned between an air outlet tube and an emergent optical filter, and the light shielding part of the light shielding plate is parallel to an incident lens. The utility model designs a reasonable flowing direction for the sample air, the reference photoelectric tube directly corresponds to an ultraviolet lamp, and the reacting chamber can correct the effect of the fluctuation of the ultraviolet light source for the measuring result without needing to use other optical components. The design has simple, compact and reasonable structure, less using parts and accurate measuring value, an optical table is installed without needing any regulation, and the design reduces the maintaining and debugging workload of the equipment and is suitable for being used in the automatic sulfur dioxide monitor with continuous operation.
Description
Technical field
The utility model relates to a kind of surveying instrument, and the instrument especially for monitoring content of sulfur dioxide in the atmosphere automatically belongs to the physical measuring instrument technical field.
Background technology
Sulphuric dioxide is a kind of colourless toxic gas, and concentration does not have smell when low, reaches about 1.5mg/m in concentration
3Pungent flavor can appear.Its main source is that the sulphur that contains in oil, the coal changes sulphuric dioxide into and enters atmosphere after burning.Sulphuric dioxide is airborne a kind of main pollutant component, discloses according to relevant information, and China is annual at present because of sulphuric dioxide and acid rain pollute, and ecologic environment infringement and health are influenced the economic loss that causes about 110,000,000,000 yuans.The people can make the respiratory system function impaired after sucking sulphuric dioxide, increases the weight of existing respiratory disease and cardiovascular disease.To the susceptible to crowd, except that lung functions changes, also with some as breathe, manifest symptoms such as shortness of breath, cough, and cause mortality ratio to rise thus.In recent years, increasing to control, management that harmful gases such as sulphuric dioxide pollute, this wherein accurately, detection means is to administer the prerequisite of polluting timely.The method that a kind of advanced person's Ultraluminescence principle is arranged for the detection of content of sulfur dioxide in the air at present, this method than other measuring method have the measuring accuracy height, highly sensitive, measured value is stable, the instrument maintenance amount is little, can carry out continuous automatic on-line monitoring and other advantages, its principle is based on SO
2Molecule is accepted the SO that the specific wavelength ultraviolet energy becomes excited state
2 *Molecule, the SO of excited state
2 *Molecule can produce characteristic fluorescence when returning low-energy state, determine the concentration of sulphuric dioxide in the air by the intensity of measuring characteristic fluorescence.Reaction chamber is the core component of this instrument in the sulfur dioxide monitor of employing Ultraluminescence principle, SO in reaction chamber
2Molecule is returned ground state and finishes testing process to excited state by ground state.Show existing foreign technology according to interrelated data, the structure of its reaction chamber is comparatively complicated, and its reference photoelectric tube is directly not corresponding with uviol lamp, prism need be set light is reflected; Sample gas flows to unreasonable; The parts that use are many, increased the debugging work load of safeguarding of equipment.
Summary of the invention
Technical problem to be solved in the utility model is: overcome the defective of above-mentioned prior art and provide that a kind of simple and compact for structure, darkroom is regional to be provided with rational sulfur dioxide monitor reaction chamber.
The alleged problem of the utility model is solved by following technical scheme:
A kind of sulfur dioxide monitor reaction chamber, comprise the incident optical module in the formation, reactor chamber, the chamber is assembled in taper, the outgoing optical module, the reference photoelectric tube, wherein, the reactor chamber two side connects taper respectively and assembles chamber and beam incident optical assembly, the outgoing optical module is installed in the reactor chamber front end, reactor chamber is provided with draft tube, taper is assembled the chamber and is provided with escape pipe, its special feature is: be provided with light barrier 4 in reactor chamber 3, light barrier is fixed on the reactor chamber antetheca 11, between escape pipe 5 and outgoing optical filter 7-2, its part 4-1 that is in the light is parallel with incident lens 6-1.
Above-mentioned sulfur dioxide monitor reaction chamber, described light barrier are in the light width partly smaller or equal to H+D; More than or equal to H-D, wherein, H is the distance of escape pipe center to 11 of reactor chamber antethecas, and D is the escape pipe diameter, and the light barrier part length dimension that is in the light is 2～3 times of width.
Above-mentioned sulfur dioxide monitor reaction chamber, the axial line and the beam incident optical assembly centerline collineation in chamber 1 assembled in described taper, and described reference photoelectric tube 8 is positioned at the outer end that the chamber minor diameter is assembled in taper, and is directly corresponding with uviol lamp 6-3.
The utility model is reasonable trend for sample gas has designed, and has made the zone, darkroom for the excited state sulfur dioxide molecule returns ground state, thereby has discharged characteristic fluorescence, and characteristic fluorescence is detected as useful signal through measurement mechanism.The reference photoelectric tube is directly corresponding with uviol lamp, need not can revise the influence of ultraviolet source fluctuation to measurement result by means of other optics.This project organization is simple, compact, reasonable, optical table is installed is need not to carry out any adjusting, uses parts few, has reduced the debugging work load of safeguarding of equipment, and measured value is accurate, is suitable in the sulfur dioxide monitor device of running continuously.
Description of drawings
Fig. 1 is a structural drawing of the present utility model;
Fig. 2 is the A-A cut-open view of Fig. 1;
Fig. 3 is the light barrier structural drawing.
The label of each parts is expressed as follows in the accompanying drawing: 1. the chamber is assembled in taper; 2. draft tube; 3. reactor chamber; 4. light barrier; The part 4-1. light barrier is in the light; 5. escape pipe; 6. beam incident optical assembly; 6-1. incident lens; 6-2. incident optical filter; 6-3. uviol lamp; 7. outgoing optical module; 7-1. exit lens; 7-2 outgoing optical filter; 8. reference photoelectric tube; 9. photomultiplier; 10. darkroom; 11. reaction chamber antetheca.
Embodiment
Referring to Fig. 1, Fig. 2, main composition of the present utility model comprises incident optical module 6, reactor chamber 3, taper convergence chamber 1, outgoing optical module 7, reference photoelectric tube 8 etc.As seen from the figure, chamber coupled reaction chamber body left side wall is assembled in taper, and the beam incident optical assembly is positioned at the reactor chamber right side wall, and the outgoing optical module is installed in the reactor chamber front end, and reactor chamber top is provided with escape pipe 5, and taper is assembled the chamber and is provided with draft tube 2.The beam incident optical assembly comprises incident lens 6-1, incident optical filter 6-2 and uviol lamp 6-3, and the outgoing optical module comprises exit lens 7-1 and outgoing optical filter 7-2, and photomultiplier 9 is positioned at outside the reaction chamber, corresponding outgoing optical module.Be provided with a light barrier 4 in reactor chamber, light barrier is fixed on the antetheca 11 of reactor chamber 3, and it is between escape pipe 5 and outgoing optical filter 7-2, and its part 4-1 that is in the light is parallel with incident lens 6-1.After light barrier is set, near outgoing optical filter 7-2, be provided with ultraviolet light irradiation less than zone, darkroom 10.The principle of work of reaction chamber is: uviol lamp 6-3 gives out the wide spectrum ultraviolet ray, through the effect of beam incident optical assembly, finally keeps centre wavelength and enters in the reactor chamber in the ultraviolet ray of 214nm, forms and makes SO
2Molecule produces the light source that excites.After sample gas enters reaction chamber by draft tube, externally move to the escape pipe direction under the effect of negative pressure pump, in the motion process, SO
2Molecule is accepted the ultraviolet energy of centre wavelength at 214nm in reactor chamber, form the SO of excited state
2Molecule, the SO of excited state
2When passing through the zone, darkroom that forms by light barrier when molecule is discharged reaction chamber, change the SO of ground state into
2Molecule, thereby discharge characteristic fluorescence, characteristic fluorescence intensity is relevant with sulfur dioxide concentration, characteristic fluorescence process outgoing optical filter 7-2 and exit lens 7-1 post-concentration are on photoelectron-multiplier-tube 9, detected as useful signal, after data processing, can draw content of sulfur dioxide in the tested gas.For guaranteeing that light barrier can form the zone, darkroom and not influence the irradiation of ultraviolet light to sample gas in the reaction chamber, referring to Fig. 3, light barrier is a flap, and the dimension width of its position 4-1 that is in the light should be smaller or equal to H+D; More than or equal to H-D, wherein, H is the distance of escape pipe center to 11 of reactor chamber antethecas, and D is the escape pipe diameter, and length dimension is 2～3 times of width.
The utility model, the axial line and the beam incident optical assembly centerline collineation in chamber 1 assembled in taper, reference photoelectric tube 8 is positioned at the outer end that minor diameter place, chamber is assembled in taper, and is directly corresponding with beam incident optical assembly 6, but on the reference photoelectric tube of the light direct irradiation of uviol lamp 6-3.This structure can need not to be provided with other optical element, and the reference correction is accurate.The principle of its reference correction is: when sample concentration does not change, because uviol lamp luminous intensity fluctuation, make that detected useful signal is also with the uviol lamp luminous intensity variations on the photomultiplier 9, detect the uviol lamp change of luminous intensity by reference photoelectric tube 8, revise owing to of the influence of uviol lamp change of luminous intensity, to guarantee that measured value is accurate detected useful signal on the photomultiplier.
Claims (3)
1. sulfur dioxide monitor reaction chamber, comprise the incident optical module in the formation, reactor chamber, the chamber is assembled in taper, the outgoing optical module, the reference photoelectric tube, wherein, the reactor chamber two side connects taper respectively and assembles chamber and beam incident optical assembly, the outgoing optical module is installed in the reactor chamber front end, reactor chamber is provided with escape pipe, taper is assembled the chamber and is provided with draft tube, it is characterized in that: in reactor chamber (3), be provided with light barrier (4), light barrier is fixed on the reactor chamber antetheca (11), be positioned between escape pipe (5) and the outgoing optical filter (7-2), its part (4-1) that is in the light is parallel with incident lens (6-1).
2. sulfur dioxide monitor reaction chamber according to claim 1 is characterized in that: described light barrier is in the light width partly smaller or equal to H+D; More than or equal to H-D, wherein, H is the distance of escape pipe center between the reactor chamber antetheca (11), and D is the escape pipe diameter, and the light barrier part length dimension that is in the light is 2～3 times of width.
3. according to claim 1 or 2 or 3 described sulfur dioxide monitor reaction chambers, it is characterized in that: the axial line and the beam incident optical assembly centerline collineation in chamber (1) assembled in described taper, described reference photoelectric tube (8) is positioned at the outer end that the chamber minor diameter is assembled in taper, and is directly corresponding with uviol lamp (6-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420016505 CN2722239Y (en) | 2004-06-29 | 2004-06-29 | Reacting chamber of automatic sulfur doixide monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420016505 CN2722239Y (en) | 2004-06-29 | 2004-06-29 | Reacting chamber of automatic sulfur doixide monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2722239Y true CN2722239Y (en) | 2005-08-31 |
Family
ID=35012609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420016505 Expired - Fee Related CN2722239Y (en) | 2004-06-29 | 2004-06-29 | Reacting chamber of automatic sulfur doixide monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2722239Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259156A (en) * | 2015-11-27 | 2016-01-20 | 天津师范大学 | Sulfur testing device and method |
-
2004
- 2004-06-29 CN CN 200420016505 patent/CN2722239Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259156A (en) * | 2015-11-27 | 2016-01-20 | 天津师范大学 | Sulfur testing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HEBEI XIANHE ENVIRONMENTAL SCIENCE CO., LTD. Free format text: FORMER NAME: HEBEI XIANHE TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: No. 251, Xiangjiang Road, East Development Zone, Hebei, Shijiazhuang: 050035 Patentee after: Hebei Sailhero Environmental Protection Hi-tech Co., Ltd. Address before: No. 175, friendship south street, Qiaoxi West, Shijiazhuang, Hebei: 050051 Patentee before: Hebei Sailhero High-tech Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050831 Termination date: 20120629 |