CN210953798U - Reflection type double-tube gas detection device - Google Patents
Reflection type double-tube gas detection device Download PDFInfo
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- CN210953798U CN210953798U CN201921642295.7U CN201921642295U CN210953798U CN 210953798 U CN210953798 U CN 210953798U CN 201921642295 U CN201921642295 U CN 201921642295U CN 210953798 U CN210953798 U CN 210953798U
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Abstract
The application provides a double-barrelled gaseous detection device of reflective, include the utility model discloses by interface seat (1), light source (2), detector (3), lens, reflection tube, speculum seat (8) and heating heat preservation (9) are all installed on interface seat (1). The utility model discloses a reflection-type double-tube gas detection device, which uses double detection channels separated from a non-corrosion-resistant low-cost optical element; the reflecting tube can reflect scattered light beams, and the scattered light beams are focused and collimated by the lens and then are converged into a normal light path, so that the cost is saved, and the waste is avoided.
Description
Technical Field
The utility model belongs to the technical field of gaseous detection and specifically relates to a double-barrelled gaseous detection device of reflection type.
Background
The current commercial long-optical-path gas spectrum detection device is generally provided with a relatively precise optical structure such as a concave mirror system. This results in high cost of the finished product, and the technical level requirements of related personnel for design, installation and debugging are high. Moreover, the optical elements are often exposed to the gas to be measured, and when corrosive gas is detected, a corrosion-resistant optical coating such as gold is required. This further increases the cost. The use of such a configuration of detection means in a detection apparatus which does not require an excessively long optical path is clearly wasteful.
Disclosure of Invention
For overcoming current defect, the utility model provides a double-barrelled gas detection device of reflective.
A reflection type double-tube gas detection device comprises an interface seat, a light source, a detector, a lens, a reflecting tube, a reflecting mirror seat and a heating heat preservation layer, wherein the light source, the detector, the lens, the reflecting tube, the reflecting mirror seat and the heating heat preservation layer are all arranged on the interface seat.
The reflecting tubes are two, the first reflecting tube and the second reflecting tube are parallelly mounted on the interface seat, the first reflecting tube is communicated with the second reflecting tube, one end of the first reflecting tube is provided with the air inlet, and one end of the second reflecting tube is provided with the air outlet.
The number of the lenses is four, and the first lens and the second lens are respectively arranged at two ends of the first reflecting tube; the third lens and the fourth lens are respectively arranged at two ends of the second reflecting tube.
The number of the reflecting mirrors is two, and the first reflecting mirror and the second reflecting mirror are arranged on the reflecting mirror base.
The light source and the detector are arranged on one side of the reflecting tube, wherein the light source is arranged on one side of the first reflecting tube, and the detector is arranged on one side of the second reflecting tube.
Preferably, the light source is a pulsed light source, and an infrared or ultraviolet light source can be selected as required. The detector may be a single channel detector or a multi-channel detector as desired.
Preferably, the inner wall of the reflector tube is mirror-finished to reflect the scattered light beam of the light source and reduce light scattering.
Preferably, an electric heating body is arranged in the heating insulation layer, so that the temperature of the whole device is constant, and gas condensation and influence on a circuit system are avoided.
Preferably, the mirror is a front mirror.
The utility model discloses a reflection-type double-tube gas detection device, which uses double detection channels separated from a non-corrosion-resistant low-cost optical element; the reflecting tube can reflect scattered light beams, and the scattered light beams are focused and collimated by the lens and then are converged into a normal light path, so that the cost is saved, and the waste is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a reflection type double-tube gas detection device.
Fig. 2 is a schematic diagram of an optical path of a reflection type double-tube gas detection device.
Detailed Description
The following describes a reflection type double-tube gas detection device provided by the invention in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 and 2 show a reflection type double-tube gas detection device, which comprises a connector base 1, a light source 2, a detector 3, a lens, a reflection tube, a reflector base 8 and a heating insulation layer 9, wherein the light source 2, the detector 3, the lens, the reflection tube, the reflector base 8 and the heating insulation layer 9 are all installed on the connector base 1.
The number of the reflection tubes is two, the first reflection tube 51 and the second reflection tube 52 are installed on the interface seat 1 in parallel, wherein the first reflection tube 51 is communicated with the second reflection tube 52, one end of the first reflection tube 51 is provided with an air inlet a, and one end of the second reflection tube 52 is provided with an air outlet B.
The number of the lenses is four, and the first lens 41 and the second lens 42 are respectively arranged at two ends of the first reflecting tube 51; the third lens 43 and the fourth lens 44 are respectively installed at both ends of the second reflection pipe 52.
The number of the reflecting mirrors is two, and the first reflecting mirror 71 and the second reflecting mirror 72 are mounted on the reflecting mirror base 8.
The light source 2 and the detector 3 are mounted on one side of the reflection tube, wherein the light source 2 is located on one side of the first reflection tube 51, and the detector 3 is located on one side of the second reflection tube 52.
During detection, the gas to be detected 6 enters from the gas inlet A and is discharged from the gas outlet B. The detection light beam 11 is emitted from the light source 2 in the interface seat 1, passes through the reflection tube after being focused by the lens, and in the process, due to various deviations, a part of the scattered light beam 10 advances at an angle which is not parallel to the reflection tube, so that the scattered light beam is reflected in the reflection tube for multiple times and finally irradiates the lens 42 together with the detection light beam.
After being focused by the lens 42, the detection light beam is reflected twice by the reflecting mirrors 71 and 72, turns around by 180 degrees and is focused by the lens 43 to enter the reflecting tube 52. The detection beam reaches lens 44 and is focused and directed onto the detector. During the time from the emission of the detection beam to the arrival at the detector, a certain wavelength of the detection beam is partially absorbed by a certain component in the gas to be measured, resulting in a deviation of the data from the null position. After the optical signal is converted into an electrical signal, the gas component can be analyzed by a computer according to the data at the zero position and the current detection data.
Finally, it should be noted that the above examples are only intended to describe the technical solutions of the present invention and not to limit the technical methods, the present invention can be extended in application to other modifications, variations, applications and embodiments, and therefore all such modifications, variations, applications, embodiments are considered to be within the spirit and teaching scope of the present invention.
Claims (8)
1. The utility model provides a double-barrelled gas detection device of reflective, includes interface seat (1), light source (2), detector (3), lens, reflection tube, speculum seat (8) and heating heat preservation (9), its characterized in that, light source (2), detector (3), lens, reflection tube, speculum seat (8) and heating heat preservation (9) are all installed on interface seat (1).
2. The reflection type dual-tube gas detection device according to claim 1, wherein the number of the reflection tubes is two, the first reflection tube (51) and the second reflection tube (52) are installed on the mouthpiece (1) in parallel, the first reflection tube (51) is communicated with the second reflection tube (52), one end of the first reflection tube (51) is provided with the gas inlet (A), and one end of the second reflection tube (52) is provided with the gas outlet (B).
3. The reflection type dual tube gas detecting apparatus according to claim 1, wherein the number of the lenses is four, and the first lens (41) and the second lens (42) are respectively installed at both ends of the first reflection tube (51); the third lens (43) and the fourth lens (44) are respectively arranged at two ends of the second reflecting pipe (52).
4. The reflective double-tube gas detection apparatus according to claim 1, wherein the number of the reflecting mirrors is two, and the first reflecting mirror (71) and the second reflecting mirror (72) are mounted on the reflecting mirror base (8).
5. The reflective double tube gas detecting apparatus according to claim 1, wherein the light source (2) and the detector (3) are installed on one side of the reflection tube, wherein the light source (2) is located on one side of the first reflection tube (51) and the detector (3) is located on one side of the second reflection tube (52).
6. The reflective dual tube gas detection apparatus according to claim 1, wherein the light source (2) is a pulsed light source.
7. The reflective dual tube gas sensing device according to claim 1, wherein the inner wall of the reflection tube is mirror-finished.
8. The reflective double-tube gas detection device according to claim 1, wherein an electric heating body is provided in the heat insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921642295.7U CN210953798U (en) | 2019-09-29 | 2019-09-29 | Reflection type double-tube gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921642295.7U CN210953798U (en) | 2019-09-29 | 2019-09-29 | Reflection type double-tube gas detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210953798U true CN210953798U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921642295.7U Active CN210953798U (en) | 2019-09-29 | 2019-09-29 | Reflection type double-tube gas detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210953798U (en) |
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2019
- 2019-09-29 CN CN201921642295.7U patent/CN210953798U/en active Active
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