CN211697480U - Spherical reflecting pool device for enhancing optical path - Google Patents
Spherical reflecting pool device for enhancing optical path Download PDFInfo
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- CN211697480U CN211697480U CN202020123501.XU CN202020123501U CN211697480U CN 211697480 U CN211697480 U CN 211697480U CN 202020123501 U CN202020123501 U CN 202020123501U CN 211697480 U CN211697480 U CN 211697480U
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Abstract
The utility model discloses a ball-type reflecting pool device of reinforcing optical distance. The device mainly comprises an incident light source unit, a spherical reflecting pool, a diffuse reflection coating, a light source detector unit, a device closed frame and the like; the device is a closed cuboid integrally and is formed by assembling the five parts; the spherical reflecting pool is positioned in the center of the device, and the outer surface of the spherical reflecting pool is coated with a diffuse reflection coating with high diffuse reflectivity and a light-resistant coating; the incident light source unit and the emergent photodetector unit are internally connected with the spherical reflecting pool, externally integrated on the device frame, and are vertically distributed at an angle of 90 degrees. The whole device is assembled into a whole by each part, is sealed and light-proof, can effectively prevent external light from entering, and avoids influencing the measurement result.
Description
Technical Field
The invention relates to the fields of absorption spectrum detection, water quality analyzer detection and the like, in particular to a device adopted when the content of substances to be detected in water quality such as surface water, seawater and the like is very low.
Background
The multiple reflection cell is widely applied in the fields of trace gas detection in an optical system and the like. Based on the Lambert beer law, after characteristic light emitted by the light source is reflected for multiple times in a medium to be detected, an optical absorption signal can be effectively improved, so that the effects of improving the gas detection sensitivity and reducing the detection limit are achieved. Research shows that the multiple reflection cell technology can be applied to the fields of absorption spectroscopy, Raman spectroscopy, photoacoustic spectroscopy and the like, and plays an increasingly important role in the fields of scientific research, gas environment monitoring, instrument research and development and production and the like.
In the field of environmental monitoring, in particular, with a spectrophotometry method, detection of trace parameters in water quality through a color reaction is not realized, and online detection and analysis are not realized. The main reasons for restricting the realization of the trace water quality parameter analyzer are low absorbance, poor sensitivity, high detection limit and the like. In order to break through the limitation of the traditional water quality analyzer in the aspect of measuring the optical path, a multi-reflection cell in the trace gas detection needs to be improved and upgraded, so that the multi-reflection cell is suitable for the field of water quality detection.
With the continuous improvement of scientific technology, higher requirements are put on measuring instruments used in the field of environmental monitoring, and each measuring instrument gradually develops towards the trends of miniaturization, high precision, high sensitivity and the like.
Aiming at the problem of the limitation of the traditional water quality analyzer in the aspect of measuring the optical path, an effective solution is not provided at present.
SUMMERY OF THE UTILITY MODEL
To the problem among the correlation technique, the utility model provides an strengthen optical distance's ball-type reflecting pool device to overcome the above-mentioned technical problem that current correlation technique exists.
Therefore, the utility model discloses a specific technical scheme as follows:
the purpose of this patent is to provide the technical thinking who breaks through traditional analysis appearance colorimetric pool optical distance short for the online analysis appearance based on spectrophotometry to solve the online analysis appearance in water quality analysis field and can not detect the problem of the substance that awaits measuring of trace because of absorbance is low excessively, sensitivity is poor, the reason that the detection limit is high.
A spherical reflecting pool device for enhancing optical path comprises an incident light source unit, a spherical reflecting pool, a diffuse reflection coating, a light source detector unit, a device closed frame and the like; the device is a closed cuboid integrally and is formed by assembling the five parts; the spherical reflecting pool is positioned in the center of the device, and the outer surface of the spherical reflecting pool is coated with a diffuse reflection coating with high diffuse reflectivity and a light-resistant coating; the incident light source unit and the photoelectric detector unit are internally connected with the spherical reflecting pool, externally integrated on the device frame, and the incident light source unit and the photoelectric detector unit are vertically distributed at an angle of 90 degrees. The whole device is assembled into a whole by all parts, is sealed and light-proof, can effectively prevent external light from entering and avoids influencing the measurement result; wherein, the diffuse reflection coating has an incident light opening at the joint of the light source and the spherical reflection pool; an emergent light opening is arranged at the joint of the light source detector unit and the spherical reflecting pool.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an apparatus for enhancing an optical path of a water quality online analyzer according to an embodiment of the present invention;
in the figure:
the device comprises a closed frame 1, a light-shading coating 2, a spherical reflecting pool 3, a diffuse reflection coating 4, an incident light source unit 5, a reflecting pool upper fixed valve seat 6, a light source detector unit 7 and a reflecting pool lower fixed valve seat 8.
Detailed Description
For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.
According to the utility model discloses an embodiment provides a device that is used for quality of water on-line analyzer's reinforcing optical distance.
The first embodiment is as follows:
a spherical reflection pool device for enhancing optical path comprises a device closed frame 1, a light-shading coating 2, a spherical reflection pool 3, a diffuse reflection coating 4, an incident light source unit 5, a reflection pool upper fixed valve seat 6, a light source detector unit 7 and a reflection pool lower fixed valve seat 8; the whole device is a closed cuboid; the device closed frame 1 is positioned at the upper end of the whole body, the spherical reflecting pool 3 is positioned at the center of the device, and the outer surface of the spherical reflecting pool is coated with a diffuse reflection coating 4 and a light-proof coating 2; the inner parts of the incident light source unit 5 and the light source detector unit 7 are connected with the spherical reflecting pool, the outer parts of the incident light source unit 5 and the light source detector unit 7 are integrated on the device frame, the angles of the incident light source unit and the light source detector unit are vertically distributed at 90 degrees, the upper part of the spherical reflecting pool 3 with the increased optical path is fixed with a fixed valve seat 6 at the upper part of the reflecting pool, and the lower part of the spherical reflecting pool; the diffuse reflection coating 4 has an incident light opening at the joint of the incident light source unit 5 and the spherical reflecting pool 3, and the diffuse reflection coating 4 has an emergent light opening at the joint of the light source detector unit 7 and the spherical reflecting pool 3.
Preferably, an exhaust hole is reserved in the center of the fixed valve seat 6 at the upper part of the reflecting pool, and when a sample or a reagent enters the spherical reflecting pool 3 from the sample inlet hole, the internal air is exhausted from the exhaust hole, so that the purpose of pressure balancing is achieved.
Preferably, the middle upper part of the spherical reflecting pool 3 is provided with a cylindrical liquid storage cavity for storing the residual sample or reagent.
As shown in fig. 1, the spherical reflecting pool 3 is used for storing water samples, reaction reagents, and the like, and therefore, high temperature resistance and corrosion resistance are required. And the base material of the spherical reflecting pool is required to have certain transmittance, and the light enters the sphere through the incident hole or the light passes through the exit hole to reduce the loss of light intensity as much as possible. Therefore, the spherical reflecting pool 3 is generally made of quartz glass. A sample inlet hole is reserved in the center of a fixed valve seat 8 at the lower part of the reflecting pool, and samples, reagents and the like can enter the spherical reflecting pool 3 through the hole. Preferably, an exhaust hole is reserved in the center of the fixed valve seat 6 at the upper part of the reflecting pool, and after a sample or a reagent enters the spherical reflecting pool 3 from the sample inlet hole, the internal air is exhausted from the exhaust hole, so that the purpose of pressure balancing is achieved. Generally, the effect of the device on increasing the optical path is closely related to the diameter of the sphere, and the total volume of the sample and the reagent is required to be larger than the volume of the sphere in the spherical reflecting pool 3, so as to fully play the role of increasing the optical path. Preferably, a cylindrical liquid storage cavity is added at the upper part of the spherical reflecting pool 3 for storing the residual sample or reagent.
Under the power source of a peristaltic pump or an injection pump, a sample and a reagent sequentially enter the spherical reflecting pool 3 through the fixed valve seat 8 at the lower part of the reflecting pool and are fully mixed and reacted in the spherical reflecting pool, after the system reaction time is reached, the light source 5 emits characteristic light with specific wavelength, and the incident light intensity I is detected at the light source detector 70. The incident light enters the spherical reflecting pool 3 from the incident hole, is reflected for multiple times under the action of the diffuse reflection coating 4, and finally is emitted from the emergent hole to the light source detector 7 to detect the emergent light intensity I1The absorbance calculation was performed according to the lambert-beer law.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A spherical reflecting pool device for enhancing an optical path is characterized by comprising a device closed frame (1), a light-shading coating (2), a spherical reflecting pool (3), a diffuse reflection coating (4), an incident light source unit (5), a reflecting pool upper fixing valve seat (6), a light source detector unit (7) and a reflecting pool lower fixing valve seat (8), wherein the device is integrally a closed cuboid, the device closed frame (1) is positioned at the upper end of the device, the spherical reflecting pool (3) is positioned at the center of the device, the diffuse reflection coating (4) and the light-shading coating (2) are coated on the outer surface of the device closed frame, an incident light opening is formed at the joint of the incident light source unit (5) and the spherical reflecting pool (3) on the diffuse reflection coating (4), an emergent light opening is formed at the joint of the light source detector unit (7) and the spherical reflecting pool (3) on the diffuse reflection coating (4), the incident light source unit (5) and the light source detector unit (7) are internally connected with the spherical reflecting pool, the outside is integrated on the closed frame of the device, the angles of the incident light source unit and the light source detector unit are vertically distributed at 90 degrees, the upper part of the spherical reflecting pool (3) is fixed with the upper fixed valve seat (6) of the reflecting pool, and the lower part of the spherical reflecting pool is fixed with the lower fixed valve seat (8) of the reflecting pool.
2. The optical path length-enhanced spherical reflecting pool device according to claim 1, wherein a vent hole is left in the center of the fixed valve seat (6) at the upper part of the reflecting pool.
3. The optical path length-enhanced spherical reflecting pool device according to claim 1, wherein a cylindrical liquid storage cavity is arranged at the middle upper part of the spherical reflecting pool (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020123501.XU CN211697480U (en) | 2020-01-20 | 2020-01-20 | Spherical reflecting pool device for enhancing optical path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020123501.XU CN211697480U (en) | 2020-01-20 | 2020-01-20 | Spherical reflecting pool device for enhancing optical path |
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| Publication Number | Publication Date |
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| CN211697480U true CN211697480U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020123501.XU Active CN211697480U (en) | 2020-01-20 | 2020-01-20 | Spherical reflecting pool device for enhancing optical path |
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| CN (1) | CN211697480U (en) |
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2020
- 2020-01-20 CN CN202020123501.XU patent/CN211697480U/en active Active
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