CN211043119U - Double-light-path device for total nitrogen water quality on-line monitor - Google Patents
Double-light-path device for total nitrogen water quality on-line monitor Download PDFInfo
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- CN211043119U CN211043119U CN201921832918.7U CN201921832918U CN211043119U CN 211043119 U CN211043119 U CN 211043119U CN 201921832918 U CN201921832918 U CN 201921832918U CN 211043119 U CN211043119 U CN 211043119U
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Abstract
The utility model discloses a double optical path device for a total nitrogen water quality on-line monitor, which comprises a shell, a glass tube, a xenon lamp, an emission diaphragm tube, a receiving diaphragm tube, an optical filter and a silicon photoelectric receiving diode; the glass tube is vertically arranged in the center of the inner part of the machine shell; the xenon lamp is fixed on the side wall of one side of the shell; the emission diaphragm tube is horizontally fixed on the inner wall of the shell, one end of the emission diaphragm tube is aligned with the light emitting part of the xenon lamp, and the other end of the emission diaphragm tube faces the glass tube; the receiving diaphragm tube and the transmitting diaphragm tube are coaxially arranged, one end of the receiving diaphragm tube is fixed on the inner wall of the shell, and the other end of the receiving diaphragm tube faces the glass tube; the optical filter is fixed at one end of the receiving diaphragm tube; the wavelengths of the plurality of filters are different; the number of the silicon photoelectric receiving diodes and the number of the optical filters are the same. The utility model discloses simple structure, it is small, with low costs, no mechanical motion part, the wavelength is accurate, does not have the problem of follow-up maintenance, advantages such as easy to assemble and use have satisfied the collection analysis of total nitrogen quality of water different wavelengths.
Description
Technical Field
The utility model relates to a quality of water on-line automatic measurement technical field, more specifically the double optical path device for total nitrogen quality of water on-line monitoring appearance that says so relates to.
Background
In water environment monitoring, total nitrogen is an important index, and the current total nitrogen water quality online monitor generally refers to the national standard laboratory analysis method, namely HJ 636-2012 'alkaline potassium persulfate digestion ultraviolet spectrophotometry for measuring total nitrogen of water quality'. The method requires double ultraviolet spectrophotometry (220nm and 275nm) to analyze the digested nitrate, but many total nitrogen water quality online monitors in the market only use single ultraviolet spectrophotometry (220nm), while the single ultraviolet spectrophotometry (220nm) is influenced by organic matters or turbidity in the digested liquid, and the measured value is greatly different from the national standard. Some total nitrogen water quality on-line monitoring instruments adopt a spectrometer as a detector to realize a double ultraviolet spectrophotometry, but the existing spectrometer is expensive, large in size and high in maintenance cost, and only two wavelengths (220nm and 275nm) are actually used, so that the function of the spectrometer is greatly wasted.
Therefore, how to provide an on-line monitoring device with a simple structure and accurate total nitrogen data measurement is an urgent problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a total nitrogen quality of water dual-optical-path device for on-line monitoring appearance aims at solving above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a total nitrogen quality of water dual-optical-path device for on-line monitoring appearance includes: the device comprises a shell, a glass tube, a xenon lamp, an emission diaphragm tube, a receiving diaphragm tube, an optical filter and a silicon photoelectric receiving diode;
the shell is a sealed rectangular shell;
the glass tube is vertically arranged in the center of the interior of the shell, and two ends of the glass tube are respectively connected and fixed with the top wall and the bottom wall of the shell;
the xenon lamp is fixed on the side wall of one side of the shell, and the light emitting direction faces to the inside of the shell and is aligned to the glass tube;
the emission diaphragm tube is horizontally fixed on the inner wall of the shell, one end of the emission diaphragm tube is aligned with the light emitting part of the xenon lamp, and the other end of the emission diaphragm tube faces the glass tube;
the receiving diaphragm tube and the transmitting diaphragm tube are coaxially arranged, one end of the receiving diaphragm tube is fixed on the inner wall of the shell opposite to the transmitting diaphragm tube, and the other end of the receiving diaphragm tube faces the glass tube;
the number of the optical filters is multiple, and the optical filters are fixed at one end of the receiving diaphragm tube connected with the shell in parallel in the vertical direction; the wavelengths of the optical filters are different;
the silicon photoelectric receiving diodes are the same as the optical filters in number and are fixed on the end of the receiving diaphragm tube far away from the glass tube corresponding to the optical filters.
Through the technical scheme, the utility model provides a total nitrogen quality of water dual-optical-path device for on-line monitoring appearance, simple structure, it is small, with low costs, no mechanical motion part, the wavelength is accurate, does not have the problem of follow-up maintenance, advantages such as easy to assemble and use have not only satisfied the collection analysis to total nitrogen quality of water different wavelengths, have solved present total nitrogen quality of water on-line monitoring appearance's dual-optical-path device complicacy, problem with high costs moreover.
Preferably, in the above dual optical path device for total nitrogen water quality on-line monitor, the dual optical path device further comprises a first cover fixed outside the xenon lamp, and the first cover is fixedly connected with the side wall of the casing. The xenon lamp is protected, and the light source is prevented from being exposed.
Preferably, in the above dual optical path device for total nitrogen water quality on-line monitor, the first cover body is uniformly provided with a plurality of heat dissipation holes. Is beneficial to the heat dissipation of the instrument.
Preferably, in the above dual optical path apparatus for a total nitrogen water quality on-line monitor, the apparatus further comprises a second cover fixed to the outer sides of the optical filter and the silicon photoelectric receiving diode, and the second cover is fixedly connected to the side wall of the casing in a sealing manner. The airtight effect is improved, and the measuring accuracy is further improved.
Preferably, in the above dual optical path apparatus for a total nitrogen water quality on-line monitor, the number of the optical filters is two, and the wavelengths are 220nm and 275nm, respectively. The method not only meets the requirement of the national standard method for testing total nitrogen and adopts a double ultraviolet spectrophotometry to collect and analyze two wavelengths of 220nm and 275nm, but also solves the problems of complex double light path device and high cost of the prior total nitrogen water quality on-line monitor.
Preferably, in the above dual optical path apparatus for a total nitrogen water quality on-line monitor, the number of the silicon photoelectric receiving diodes is two. Data can be collected at two wavelengths, 220nm and 275nm, respectively.
Preferably, in the above dual optical path apparatus for total nitrogen water quality on-line monitor, the glass tube has a vent at the top and a water inlet/outlet at the bottom. Is convenient for water injection and drainage.
Preferably, in the above dual optical path apparatus for a total nitrogen water quality on-line monitor, the glass tube is made of quartz glass. The light passing effect can be improved.
Preferably, in the above dual optical path apparatus for a total nitrogen water quality on-line monitor, the silicon photo-receiving diode is connected to a computer through a connection line. The data can be rapidly acquired and analyzed.
Preferably, in the above dual optical path apparatus for total nitrogen water quality on-line monitor, the glass tube is filled with the liquid to be measured whose height exceeds the horizontal height of the emission diaphragm tube. Can accurately analyze the water quality.
According to the technical scheme, compare with prior art, the utility model discloses a total nitrogen quality of water dual optical path device for on-line monitoring appearance has following beneficial effect:
1. the utility model provides a total nitrogen quality of water dual-optical-path device for on-line monitoring appearance, simple structure, it is small, with low costs, no mechanical motion part, the wavelength is accurate, does not have the problem of follow-up maintenance, advantages such as easy to assemble and use have not only satisfied the collection analysis to total nitrogen quality of water different wavelengths, have solved present total nitrogen quality of water on-line monitoring appearance's dual-optical-path device complicacy, problem with high costs moreover.
2. The utility model discloses can satisfy the national standard method and require total nitrogen of test to adopt two ultraviolet spectrophotometry to the collection analysis of two kinds of wavelength of 220nm and 275 nm.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of an external structure provided by the present invention;
fig. 2 is a schematic diagram of the internal structure provided by the present invention.
Wherein:
1-a machine shell;
2-a glass tube;
21-a vent;
22-water inlet/outlet;
3-xenon lamps;
4-emission diaphragm tube;
5-receiving a diaphragm tube;
6-an optical filter;
a 7-silicon photovoltaic receiving diode;
8-a first cover;
81-heat dissipation holes;
9-second cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached drawings 1-2, the embodiment of the utility model discloses a total nitrogen quality of water dual optical path device for on-line monitoring appearance, include: the device comprises a shell 1, a glass tube 2, a xenon lamp 3, an emission diaphragm tube 4, a receiving diaphragm tube 5, an optical filter 6 and a silicon photoelectric receiving diode 7;
the casing 1 is a sealed rectangular shell;
the glass tube 2 is vertically arranged in the center of the interior of the machine shell 1, and two ends of the glass tube are respectively connected and fixed with the top wall and the bottom wall of the machine shell 1;
the xenon lamp 3 is fixed on the side wall of one side of the machine shell 1, and the light emitting direction faces to the interior of the machine shell 1 and is aligned to the glass tube 2;
the emission diaphragm tube 4 is horizontally fixed on the inner wall of the shell 1, one end of the emission diaphragm tube is aligned with the light emitting part of the xenon lamp 3, and the other end of the emission diaphragm tube faces the glass tube 2;
the receiving diaphragm tube 5 and the transmitting diaphragm tube 4 are coaxially arranged, one end of the receiving diaphragm tube is fixed on the inner wall of the machine shell 1 opposite to the transmitting diaphragm tube 4, and the other end of the receiving diaphragm tube faces the glass tube 2;
the number of the optical filters 6 is multiple, and the optical filters are fixed at one end of the receiving diaphragm tube 5 connected with the machine shell 1 in parallel in the vertical direction; the filters 6 differ in wavelength;
the silicon photoelectric receiving diodes 7 are the same as the optical filters 6 in number and are fixed at the end of the receiving diaphragm tube 5 far away from the glass tube 2 corresponding to the optical filters 6.
In order to further optimize the technical scheme, the xenon lamp shell further comprises a first cover body 8 fixed on the outer side of the xenon lamp 3, and the first cover body 8 is fixedly connected with the side wall of the shell 1.
In order to further optimize the above technical solution, the first cover 8 is uniformly provided with a plurality of heat dissipation holes 81.
In order to further optimize the technical scheme, the light source device further comprises a second cover body 9 fixed on the outer sides of the optical filter 6 and the silicon photoelectric receiving diode 7, and the second cover body 9 is fixedly connected with the side wall of the machine shell 1 in a sealing mode.
In order to further optimize the above technical solution, the number of the optical filters 6 is two, and the wavelengths are 220nm and 275nm, respectively.
In order to further optimize the above technical solution, the number of the silicon photoelectric receiving diodes 7 is two.
In order to further optimize the above solution, the glass tube 2 has a vent 21 at the top and a water inlet/outlet 22 at the bottom.
In order to further optimize the above technical solution, the glass tube 2 is made of quartz glass.
In order to further optimize the technical scheme, the silicon photoelectric receiving diode 7 is connected with a computer through a connecting wire.
In order to further optimize the technical scheme, liquid to be measured exceeding the horizontal height of the emission diaphragm tube 4 is injected into the glass tube 2.
The utility model discloses a measurement principle does:
in this embodiment, the 220nm and 275nm filters 6 are respectively installed in front of the two silicon photodiodes 7, and the light is not transmitted around the filters 6 and the silicon photodiodes 7.
When the device works, the xenon lamp 3 needs to be powered, the liquid to be detected exceeding the optical path is injected into the glass tube 3, and related instruments and electronic equipment mentioned in the device are existing products, so that specific related models are not explicitly indicated, and further description is omitted.
When the device works, light emitted by the xenon lamp 3 firstly passes through the emission diaphragm tube 5, then is absorbed by liquid to be detected in the glass tube 3, passes through the receiving diaphragm tube 5, is respectively filtered by the optical filters 6 with the wavelength of 220nm and 275nm, and then is respectively received by the two silicon photoelectric receiving diodes 7, so that the absorbance at the positions with the wavelength of 220nm and 275nm can be detected, and the total nitrogen in a sample can be analyzed.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a total nitrogen quality of water dual optical path device for on-line monitoring appearance which characterized in that includes: the device comprises a shell (1), a glass tube (2), a xenon lamp (3), an emission diaphragm tube (4), a receiving diaphragm tube (5), an optical filter (6) and a silicon photoelectric receiving diode (7);
the shell (1) is a sealed rectangular shell;
the glass tube (2) is vertically arranged in the center of the interior of the machine shell (1), and two ends of the glass tube are respectively connected and fixed with the top wall and the bottom wall of the machine shell (1);
the xenon lamp (3) is fixed on one side wall of the machine shell (1), and the light emitting direction faces to the interior of the machine shell (1) and is aligned with the glass tube (2);
the emission diaphragm tube (4) is horizontally fixed on the inner wall of the shell (1), one end of the emission diaphragm tube is aligned with the light emitting part of the xenon lamp (3), and the other end of the emission diaphragm tube faces the glass tube (2);
the receiving diaphragm tube (5) and the transmitting diaphragm tube (4) are coaxially arranged, one end of the receiving diaphragm tube is fixed on the inner wall of the machine shell (1) opposite to the transmitting diaphragm tube (4), and the other end of the receiving diaphragm tube faces the glass tube (2);
the number of the optical filters (6) is multiple, and the optical filters are fixed at one end of the receiving diaphragm tube (5) connected with the shell (1) in parallel in the vertical direction; the wavelength of the optical filters (6) is different;
the silicon photoelectric receiving diodes (7) are the same as the optical filters (6) in number and are fixed on the end of the receiving diaphragm tube (5) far away from the glass tube (2) corresponding to the optical filters (6).
2. The double optical path device for the total nitrogen water quality on-line monitor according to claim 1, further comprising a first cover body (8) fixed on the outer side of the xenon lamp (3), wherein the first cover body (8) is fixedly connected with the side wall of the machine shell (1).
3. The double optical path device for the total nitrogen water quality on-line monitor as claimed in claim 2, wherein the first cover body (8) is uniformly provided with a plurality of heat dissipation holes (81).
4. The double optical path device for the total nitrogen water quality on-line monitor as claimed in claim 1, further comprising a second cover body (9) fixed on the outer sides of the optical filter (6) and the silicon photoelectric receiving diode (7), wherein the second cover body (9) is fixedly connected with the side wall of the casing (1) in a sealing manner.
5. The double optical path device for the total nitrogen water quality on-line monitor as claimed in claim 1, wherein the number of the optical filters (6) is two, and the wavelengths are 220nm and 275nm respectively.
6. The double optical path device for the total nitrogen water quality on-line monitor as claimed in claim 5, wherein the number of the silicon photo-receiving diodes (7) is two.
7. The double optical path device for the total nitrogen water quality on-line monitor as claimed in claim 1, wherein the glass tube (2) has a vent (21) at the top and a water inlet/outlet (22) at the bottom.
8. The double optical path device for the total nitrogen water quality on-line monitor as claimed in claim 1, wherein the glass tube (2) is made of quartz glass.
9. The double optical path device for the total nitrogen water quality on-line monitor as claimed in claim 1, wherein the silicon photoelectric receiving diode (7) is connected with the computer through a connecting wire.
10. The double optical path device for the total nitrogen water quality on-line monitor as claimed in claim 1, wherein the glass tube (2) is filled with liquid to be measured which exceeds the level of the emission diaphragm tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921832918.7U CN211043119U (en) | 2019-10-29 | 2019-10-29 | Double-light-path device for total nitrogen water quality on-line monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921832918.7U CN211043119U (en) | 2019-10-29 | 2019-10-29 | Double-light-path device for total nitrogen water quality on-line monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211043119U true CN211043119U (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921832918.7U Active CN211043119U (en) | 2019-10-29 | 2019-10-29 | Double-light-path device for total nitrogen water quality on-line monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211043119U (en) |
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2019
- 2019-10-29 CN CN201921832918.7U patent/CN211043119U/en active Active
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