CN219777486U - Non-fiber ultraviolet spectrum gas analyzer for VOCs gas - Google Patents
Non-fiber ultraviolet spectrum gas analyzer for VOCs gas Download PDFInfo
- Publication number
- CN219777486U CN219777486U CN202320611339.XU CN202320611339U CN219777486U CN 219777486 U CN219777486 U CN 219777486U CN 202320611339 U CN202320611339 U CN 202320611339U CN 219777486 U CN219777486 U CN 219777486U
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- CN
- China
- Prior art keywords
- spectroscope
- gas
- refraction
- air chamber
- vocs
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- 238000002211 ultraviolet spectrum Methods 0.000 title claims abstract description 12
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 12
- 239000000835 fiber Substances 0.000 title claims description 3
- 230000008878 coupling Effects 0.000 claims abstract description 24
- 238000010168 coupling process Methods 0.000 claims abstract description 24
- 238000005859 coupling reaction Methods 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000001228 spectrum Methods 0.000 claims abstract description 9
- 238000004868 gas analysis Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 239000013307 optical fiber Substances 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 25
- 238000001514 detection method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000010183 spectrum analysis Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model provides a gaseous no fine ultraviolet spectrum gas analysis appearance of having of VOCs relates to environmental monitoring equipment technical field, includes air chamber, light source, spectrum appearance and transmission portion, transmission portion includes spectroscope and coupling speculum, the light beam of light source passes behind the spectroscope warp coupling speculum refraction gets into in the air chamber, the light beam that the refraction was out in the air chamber warp coupling speculum refraction extremely on the spectroscope, through spectroscope refraction gets into in the spectrum appearance. The novel optical fiber component that gets rid of adopts spectroscope and coupling speculum to combine together the scheme, improves instrument reliability, reduce cost.
Description
Technical Field
The utility model relates to the technical field of environment monitoring equipment, in particular to a fiber-free ultraviolet spectrum gas analyzer for VOCs gas.
Background
The gas analysis is to build a mathematical model from the spectrum data to calculate the concentration of various types of gases in the sample gas to be detected. The gas chamber is a sensing component of the optical gas analyzer, when in use, the gas to be detected is flushed into the gas chamber, and the light beam is selectively absorbed by the gas when passing through the gas chamber, so that the light beam passing through the gas chamber carries the information of the type and the concentration of the gas, and the type and/or the concentration of the gas to be detected can be calculated through the spectrum analysis of the light beam passing through the gas chamber, thereby achieving the aim of analyzing the gas to be detected. The spectrum analysis adopts an ultraviolet spectrometer, the spectrometer usually adopts optical fibers as an optical path connector, and the problems that the optical fibers are easy to break, pollute and the like are found in the actual assembly and the later test of the spectrometer, so that the product quality is seriously influenced. In order to further improve the product quality and reduce the cost, the novel design develops a fiber-free gas analysis scheme.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides the fiber-free ultraviolet spectrum gas analyzer for VOCs gas, which removes optical fiber components, adopts a scheme of combining a spectroscope and a coupling reflector, improves the reliability of the instrument and reduces the cost.
The aim of the utility model can be achieved by the following technical scheme: the utility model provides a gaseous no fine ultraviolet spectrum gas analysis appearance of having of VOCs, includes air chamber, light source, spectrum appearance and transmission portion, transmission portion includes spectroscope and coupling speculum, the light beam of light source passes after the spectroscope is through coupling speculum refraction gets into in the air chamber, the light beam that the refraction of air chamber was gone out is through coupling speculum refraction extremely on the spectroscope, through spectroscope refraction gets into in the spectrum appearance.
Preferably, the transmission part is covered with a cover shell, three openings are arranged on the cover shell, and the three openings are respectively connected with the air chamber, the light source and the spectrometer.
Preferably, a heat-insulating layer is wrapped outside the opening of the cover shell communicated with the air chamber.
Preferably, the cover is made of a shading material.
The comprehensive effects brought by the utility model include: the utility model has simple and reasonable structure and convenient use, adopts the scheme of combining the spectroscope and the coupling reflector, light emitted by the light source enters the coupling reflector after passing through the spectroscope (semi-transparent and semi-reflective), the reflector focuses the light at the light path inlet of the multi-reflection air chamber, the light returns from the air chamber after being reflected for a plurality of times in the air chamber, and is reflected to the spectroscope again by the coupling reflector, and the spectroscope reflects the light into the spectrometer.
Drawings
Fig. 1 is a schematic structural diagram of a fiber-free ultraviolet spectrum gas analyzer for VOCs gas according to an embodiment of the present utility model.
Wherein like parts are designated by like reference numerals throughout the several views; the figures are not drawn to scale.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Examples
The aim of the embodiment of the utility model can be achieved by the following technical scheme: the utility model provides a gaseous no fine ultraviolet spectrum gas analysis appearance of having of VOCs, includes air chamber 1, light source 2, spectrum appearance 3 and transmission portion, transmission portion includes spectroscope 4 and coupling speculum 5, the light beam of light source 2 passes after the spectroscope 4 warp coupling speculum 5 refraction gets into in the air chamber 1, the light beam that the refraction was out in the air chamber 1 warp coupling speculum 5 refraction extremely on the spectroscope 4, through spectroscope 4 refraction gets into in the spectrum appearance 3.
Further, in this embodiment, the transmission part is covered with a cover 6 made of a light shielding material, and three openings are provided on the cover 6, and the three openings are respectively connected with the air chamber 1, the light source 2, and the spectrometer 3.
Further, in this embodiment, a heat insulation layer 7 is wrapped outside the opening of the casing 6 communicating with the air chamber 1. The air chamber 1 needs to keep constant temperature during detection, so that the heat preservation layer 7 is coated at the connection part of the air chamber 1 and the opening of the housing 6, and the influence of the temperature change at the connection part on the use effect of the air chamber 1 is prevented.
The application principle of the embodiment of the utility model is as follows: the light source 2 is turned on to emit an original light beam, the original light beam passes through the spectroscope 4 to irradiate on the coupling reflector 5, the original light beam is reflected by the coupling reflector 5 to enter the gas chamber 1, the original light beam is refracted in the gas chamber 1 for multiple times to pass through the sample gas to be detected to form a detection light beam with detection information, the detection light beam is refracted out of the gas chamber 1 and irradiates on the coupling reflector 5, the coupling reflector 5 refracts the detection light beam onto the reflecting spectroscope 4, the spectroscope 4 refracts the detection light beam into the spectrometer 3, and the spectrometer 3 detects and analyzes the detection light beam.
The comprehensive effects brought by the embodiment of the utility model include: the utility model has simple and reasonable structure and convenient use, adopts the scheme of combining the spectroscope 4 and the coupling reflector 5, light emitted by the light source 2 enters the coupling reflector 5 after passing through the spectroscope 4 (semi-transparent and semi-reflective), the reflector focuses the light on the light path inlet of the multi-reflection air chamber 1, the light returns from the air chamber 1 after being reflected for a plurality of times in the air chamber 1, and is reflected to the spectroscope 4 again by the coupling reflector 5, and the spectroscope 4 reflects the light into the spectrometer 3.
The structures, proportions, sizes, etc. shown in the drawings attached hereto are for illustration purposes only and are not intended to limit the scope of the utility model, which is defined by the claims, but rather by the claims. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
The utility model has been described above with reference to preferred embodiments, but the scope of the utility model is not limited thereto, and any and all technical solutions falling within the scope of the claims are within the scope of the utility model. Various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict.
Claims (4)
1. The utility model provides a gaseous no fine ultraviolet spectrum gas analysis appearance of having no of VOCs, its characterized in that includes air chamber (1), light source (2), spectrum appearance (3) and transmission portion, transmission portion includes spectroscope (4) and coupling speculum (5), the light beam of light source (2) passes behind spectroscope (4) warp coupling speculum (5) refraction get into in air chamber (1), the light beam that the refraction was out in air chamber (1) warp coupling speculum (5) refraction extremely on spectroscope (4), in warp spectroscope (4) refraction get into in spectrum appearance (3).
2. The fiber-free ultraviolet spectrum gas analyzer of VOCs gas according to claim 1, wherein the transmission part is covered with a cover (6), three openings are arranged on the cover (6), and the three openings are respectively connected with the gas chamber (1), the light source (2) and the spectrometer (3).
3. The fiber-free ultraviolet spectrum gas analyzer of VOCs gas according to claim 2, characterized in that a heat insulation layer (7) is wrapped outside the opening of the cover (6) communicating with the gas chamber (1).
4. A non-fiber ultraviolet spectrum gas analyzer for VOCs gas according to claim 3, characterized in that the cover (6) is made of a light shielding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320611339.XU CN219777486U (en) | 2023-03-22 | 2023-03-22 | Non-fiber ultraviolet spectrum gas analyzer for VOCs gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320611339.XU CN219777486U (en) | 2023-03-22 | 2023-03-22 | Non-fiber ultraviolet spectrum gas analyzer for VOCs gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219777486U true CN219777486U (en) | 2023-09-29 |
Family
ID=88132626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320611339.XU Active CN219777486U (en) | 2023-03-22 | 2023-03-22 | Non-fiber ultraviolet spectrum gas analyzer for VOCs gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219777486U (en) |
-
2023
- 2023-03-22 CN CN202320611339.XU patent/CN219777486U/en active Active
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| GR01 | Patent grant |