CN209311327U - A kind of spectral type water quality detecting device - Google Patents
A kind of spectral type water quality detecting device Download PDFInfo
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- CN209311327U CN209311327U CN201822208941.0U CN201822208941U CN209311327U CN 209311327 U CN209311327 U CN 209311327U CN 201822208941 U CN201822208941 U CN 201822208941U CN 209311327 U CN209311327 U CN 209311327U
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Abstract
The utility model discloses a kind of spectral type water quality detecting devices, the spectral type water quality detecting device includes shell, first light source, second light source, first beam splitter, first optical window, second optical window and spectrum sensor, first optical window and the second optical window are mounted on shell, first light source can issue the light of 200-400nm wavelength, second light source can issue the light of 300-1200nm wavelength, the first beam splitter is provided between first light source and the first optical window, the light that first light source issues sequentially passes through the first beam splitter, after first optical window and the second optical window, it is received by spectrum sensor, after the light that second light source issues sequentially enters the first optical window and the second optical window after the reflection of the first beam splitter, it is received by spectrum sensor.The detection to organic and non-organic pollutant in water may be implemented in spectral type water quality detecting device provided by the utility model.
Description
Technical field
The utility model relates to a kind of water quality detecting device more particularly to a kind of spectral type water quality detecting devices.
Background technique
With the development of growth and the industrial and agricultural production of world population, water consumption is also growing.Simultaneously because the mankind
Production and life, lead to earth's surface, body of groundwater pollution, water quality deterioration keeps limited water resource more nervous.In water resource
So it is in short supply in the case where, need more to treasure water resource, while needing to carry out detection work, provide guarantor for the health of the common people
Barrier.Water quality detection, which refers to, to be timed the pollutants such as chemical substance, suspended matter in water or the detection of not timing, is measured in water
Type, concentration and the variation tendency of pollutant, evaluating water quality situation.Water quality detection is to entire water environment protection, water pollution control
And maintenance water environment health aspect plays a crucial role.
Common water quality detection method has chemical measure and optical detection.Chemical measure mainly has acid base titration
Method, complexometry, precipitation titration and oxidimetry etc., these detection methods be required to acquisition sample, operation compared with
For complexity, and the water in external environment can not continuously be detected.Optical detection is to utilize the pollutant in water
Light wave this characteristic can be absorbed to detect water quality, the absorption due to different types of pollutant to the light wave of different wave length
Characteristic is different, therefore can effectively be detected to the pollutant in water.The water quality detecting device of existing light absorption type is benefit
Made of the principle of ultraviolet light (UV) can be absorbed with organic pollutant, this kind of device can be called UV method detector, at present market
On the quasi-instrument, mostly use Single wavelength method greatly, the type of organic pollutant that can be detected is extremely limited, can only be to ingredient ratio
Relatively fixed and single water quality carries out the not high detection of precision, so only determining the organic matter in water with the absorbance of Single wavelength
Concentration is highly difficult.There are also a small amount of multi-wavelength UV method detectors on the market, in the accuracy of detection, compare unicast regular way
The case where increasing, but pollutant non-organic in water can not being detected, cannot reflect water pollutant comprehensively.
Utility model content
The purpose of the utility model is to provide a kind of spectral type water quality detecting device, may be implemented to organic and non-in water
The detection of organic pollutant.
To achieve the goals above, the utility model provides a kind of spectral type water quality detecting device, the spectral type water
Quality detecting device includes shell, first light source, second light source, the first beam splitter, the first optical window, the second optical window and light
Spectrum sensor, first optical window and the second optical window are mounted on shell, first optical window and the second light
Window is oppositely arranged and there are spacing, and the first light source, second light source, the first beam splitter and spectrum sensor setting exist
In shell, the first light source can issue the light of 200-400nm wavelength, and the second light source can issue 300-
The light of 1200nm wavelength, is provided with the first beam splitter between the first light source and first optical window, and described
After the light that one light source issues sequentially passes through first beam splitter, the first optical window and the second optical window, by the light
Spectrum sensor receives, and the light that the second light source issues sequentially enters first optics after first beam splitter reflection
After window and the second optical window, received by the spectrum sensor.
Preferably, the spectral type water quality detecting device further include the second beam splitter and for detecting light intensity first
Detector, second beam splitter are arranged between first beam splitter and first optical window, second beam splitting
The light portion projected through first beam splitter can be reflexed to first detector and by first detector by mirror
It receives.
Preferably, the spectral type water quality detecting device further include third beam splitter and for detecting light intensity second
Detector, the third beam splitter are arranged between the spectrum sensor and second optical window, the third beam splitting
The light portion that mirror can pass through second optical window reflexes to second detector and by second detector
It receives.
Preferably, the first light source is LED ultraviolet source, is arranged between the first light source and first beam splitter
There is the light for issuing the LED ultraviolet source to collimate the first collimation lens for collimated light beam.
Preferably, the second light source is wide range LED light source, is set between the wide range LED light source and the second beam splitter
It is equipped with for the light of the wide range LED light source to be collimated to the second collimation lens for collimated light beam.
Preferably, first detector and second detector are photodiode detector, and described first visits
It surveys the light being additionally provided between device and second beam splitter for reflecting second beam splitter and converges to described first
First plus lens of detector is additionally provided with for by the third between second detector and the third beam splitter
The light of beam splitter reflection converges to the second plus lens of second detector.
Preferably, it is additionally provided with diverging lens between the third beam splitter and the spectrum sensor, passes through described the
The light of three beam splitters is received after diverging lens diffusion by the spectrum sensor.
Preferably, the channel with front and back perforation on the shell, first optical window and the second optical window position
In the two sides in the channel.
The utility model and the prior art the difference is that, spectral type water quality detecting device provided by the utility model
By the way that the first light source that can issue the light of 200-400nm wavelength and the light that 300-1200nm wavelength can be issued is arranged
Second light source, and the light of first light source and second light source sending is made by the first beam splitter while being radiated at detected water sample institute
In region, some light is absorbed by water sample, and spectrum sensor receives the 200-1200nm wavelength through detected water sample region
Light, therefore a kind of spectral type water quality detecting device provided by the utility model may be implemented to organic and non-organic dirt in water
Contaminate the detection of object.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the spectral type water quality detecting device of preferred embodiment provided by the utility model；
Description of symbols:
1- shell；2- first light source；3- second light source；The first beam splitter of 4-；The first optical window of 5-；The second optics of 6-
Window；7- spectrum sensor；The second beam splitter of 8-；The first detector of 9-；10- third beam splitter；The second detector of 11-；12-
Collimating lens；The second collimation lens of 13-；The first plus lens of 14-；The second plus lens of 15-；16- diverging lens；17- is logical
Road.
Specific embodiment
The present invention will be further described with embodiment with reference to the accompanying drawing.But the use of these exemplary embodiments
Way and purpose are only used to enumerate the utility model, not constitute to the real protection scope of the utility model any type of any
It limits, it is more non-that the protection scope of the utility model is confined to this.
Some nouns of locality are defined in the present invention, in the case where not being specified to the contrary, used orientation
Word as " left and right " refers to a kind of spectral type water quality detecting device provided by the utility model defines under normal usage,
And it is consistent with left and right directions shown in attached drawing 1." inside and outside " refers to relative to inside and outside each components profile itself.These sides
Position word is to use in order to facilitate understanding, because without constituting the limitation to scope of protection of the utility model.
In the present invention, when components are referred to as " fixation " on another components, it can be directly anchored to
On another components, or there may also be components placed in the middle.When a components be considered as " connection " another zero
Component, it can be directly to another components or may be simultaneously present components placed in the middle.
Suitably refering to what is shown in Fig. 1, the spectral type water quality detecting device of basic embodiment provided by the utility model includes
Shell 1, first light source 2, second light source 3, the first beam splitter 4, the first optical window 5, the second optical window 6 and spectrum sensor
7.First optical window 5 and the second optical window 6 are mounted on shell 1, first optical window 5 and the second optical window
Mouth 6 is oppositely arranged and there are spacing.Preferably, the channel 17 with front and back perforation on the shell 1, first optical window
Mouth 5 and the second optical window 6 are located at the two sides in the channel 17.
The first light source 2, second light source 3, the first beam splitter 4 and spectrum sensor 7 are arranged in shell 1, and described the
One light source 2 can issue the light of 200-400nm wavelength, and the second light source 3 can issue the light of 300-1200nm wavelength
Line.
The first beam splitter 4, the first light source 2 are provided between the first light source 2 and first optical window 5
After the light of sending sequentially passes through first beam splitter 4, the first optical window 5 and the second optical window 6, by the spectrum
Sensor 7 receives, and the light that the second light source 3 issues sequentially enters first light after first beam splitter 4 reflection
After learning window 5 and the second optical window 6, received by the spectrum sensor 7.
At work, first light source 2 issues 200- to the spectral type water quality detecting device that above-mentioned basic embodiment provides
The light of 400nm wavelength, which, which is radiated on the first beam splitter 4 and passes through first beam splitter 4, is radiated at the first optics
On window 5, while the light of the 300-1200nm wavelength of the sending of second light source 3 is radiated on the first beam splitter 4 and after being reflected
It is radiated at the first optical window 5, the light of 200-400nm wavelength and the light of 300-1200nm wavelength pass through the first optics
It is radiated in detected water sample after window 5, after some light is absorbed by detected water sample, across the second optical window 6 and is radiated at light
It on spectrum sensor 7, is detected by spectrum sensor 7, to obtain the spectrum of the light after being absorbed by detected water sample.Pass through the light
Compose organic pollutant and non-organic pollutant in available detected water sample at being grouped as and concentration information.
Real-time compensation is carried out to the Strength Changes of light source in order to realize, with improve in water sample the accuracy of pollutant monitoring and
Stability, it is preferable that the spectral type water quality detecting device further include the second beam splitter 8 and for detecting light intensity
One detector 9, second beam splitter 8 are arranged between first beam splitter 4 and first optical window 5, and described the
Two beam splitters 8 can be by the light projected through first beam splitter 4 (light of first light source and second light source sending) part
It reflexes to first detector 9 and is received by first detector 9.First detector 9 detects the intensity of light, thus
Judge whether the luminous intensity of first light source 2 and second light source 3 meets setting value by controller, and adjusts 2 He of first light source
The light intensity that second light source 3 exports.
In the present invention, it is further preferred that the spectral type water quality detecting device further includes third beam splitter 10
With the second detector 11 for detecting light intensity, the third beam splitter 10 setting is in the spectrum sensor 7 and described
Between second optical window 6, the light portion that the third beam splitter can pass through second optical window 6 reflexes to institute
It states the second detector 11 and is received by second detector 11.It can be detected by the second detector 11 across the second optical window
The intensity of the light of mouth 6, to judge whether the first optical window 5 and the second optical window 6 need to clean, when cleaning is needed
Clean using setting cleaning device.
The cleaning device of first optical window 5 and the second optical window 6 can use existing various cleaning structures.At this
In utility model, it is preferable that be also equipped with brush assembly and fluid cleaning component on shell 1.In first optical window 5
Fluorine-containing super-hydrophobic coat is coated with the outer surface of the second optical window 6.Brush assembly includes brush-driven part, is fixedly mounted
In the cursor on the output shaft of the brush-driven part and it is fixedly mounted on the cursor and is located at outside the shell 1
Cleaning brush, the cleaning brush can wipe first optical window 5 and the second light under the driving of the brush-driven part
Learn window 6.Brush-driven part is steering engine, and the output shaft of steering engine connect with shell 1 by water-sealed bearing and stretches out the shell 1
Outside, one end of cursor is fixedly connected with the output shaft of steering engine, and the other end of cursor is fixedly connected with cleaning brush, and cleaning brush is in
It is cylindric, it is whole to be made of blown rubber.Fluid cleaning component includes two fluid channels, fluids being provided on shell 1
Storage chamber and fluid driver.The fluid storage chamber and fluid driver are respectively positioned in shell 1, the outlet of two fluid channels
It is located at the side of the first optical window 5 and the second optical window 6.It is equipped in every fluid channel for preventing shell 1
The check valve that outer water flows in the fluid channel.The cleaning fluid that fluid stores intracavitary storage is clean water, and fluid drives
Moving part is the elements such as water pump, valve, flowmeter.
In the present invention, the first light source 2 various can issue 200-400nm wavelength using existing
The light source of light, it is preferable that the first light source 2 is LED ultraviolet source, the first light source 2 and first beam splitter 4 it
Between be provided with the light for issuing the LED ultraviolet source and collimate the first collimation lens 12 for collimated light beam.
Similarly, the second light source 3 can use the existing various light that can issue 300-1200nm wavelength light
Source, it is preferable that second light source is wide range LED light source, is provided with and is used between the wide range LED light source and the second beam splitter 8
The light of the wide range LED light source is collimated into the second collimation lens 13 for collimated light beam.
In the present invention, first detector 9 and second detector 11 are photodiode detector,
Electric diode detector is preferably using the photodiode detector with temperature and compensation of ageing function.First detector
It is additionally provided with the light for reflecting second beam splitter 8 between 9 and second beam splitter 8 and converges to first spy
The first plus lens 14 for surveying device 9 is additionally provided with for by institute between second detector 11 and the third beam splitter 10
The light for stating the reflection of third beam splitter 10 converges to the second plus lens 15 of second detector 11.
In order to enable passing through the light of third beam splitter 10 can preferably be received by spectrum sensor 7, it is preferable that
Diverging lens 16 is additionally provided between third beam splitter 10 and the spectrum sensor 7, across the light of the third beam splitter 10
Line is received after the diverging lens 16 diffusion by the spectrum sensor 7.
In the present invention, the first light source 2 and second light source 3 can select existing various appropriate light sources.Example
Such as first light source 2 can select model UVC254-3535, UVC265-3535, factory Seoul
The light source of Semiconductor；Second light source can select model DURISR E 2835, SFH4735, LEDSW30 etc., raw
Produce the light source that factory is OSRAM Opto Semiconductors, Thorlabs.Similarly, the first beam splitter, the second beam splitter,
The elements such as the first detector and the second detector can also select existing various elements.For example, the first beam splitter 4 can be selected
Model BSW20, UV plate beamsplitter mirror, factory Thorlabs, Edmund Optics；Second beam splitter 8 and third beam splitting
Mirror 10 can select model DMSP425R, GCC-414001, factory Thorlabs, and Daheng's new era science and technology share is limited
The beam splitter of the companies such as company；First detector 9 and the second detector 11 can select model PC10-2-TO5, S1226-
18BQ, factory are First Sensor, the detector of the companies such as Hamamatsu Photonics.
Spectral type water quality detecting device provided by the utility model is illustrated with a preferred embodiment below.
As shown in Figure 1, spectral type water quality detecting device provided in this embodiment includes shell 1, the 2, first standard of first light source
Straight lens 12, second light source 3, the second collimation lens 13, the first beam splitter 4, the second beam splitter 8, third beam splitter 10, the first light
Learn window 5, the second optical window 6, spectrum sensor 7, the first detector 9, the second detector 11, the first plus lens 14, the
Two plus lens 15 and diverging lens 16.
Channel 17 with front and back perforation on the shell 1, the first optical window 5 and the second optical window 6 are mounted on shell
On body 1, the first optical window 5 and the second optical window 6 are located at the two sides in the channel 17.The collimation of first light source 2, first is saturating
Mirror 12, second light source 3, the second collimation lens 13, the first beam splitter 4, the second beam splitter 8, third beam splitter 10, spectrum sensor
7, the first detector 9, the second detector 11, the first plus lens 14, the second plus lens 15 and diverging lens 16 are arranged at
In shell 1.The first light source 2 is the photodiode detector that can issue the light of 200-400nm wavelength, described second
Light source 3 can issue the photodiode detector of the light of 300-1200nm wavelength.
As shown in Figure 1, first light source 2, the first collimation lens 12, second light source 3, the second collimation lens 13, the first beam splitting
Mirror 4, the second beam splitter 8, the first plus lens 14 and the first detector 9 are respectively positioned on the side of the first optical window 5；First light
The light that source 2 issues sequentially passes through the first beam splitter 4, the second beam splitter after the first collimation lens 12 collimation is collimated light beam
8 and first are radiated in detected water sample after optical window 5；Second light source 3 is located at the top of the first beam splitter 4, and second light source 3 is sent out
The light penetrated is radiated on the first beam splitter 4 after the second collimation lens 13 collimation, and after the reflection of the first beam splitter 4, successively
It is radiated in detected water sample after the second beam splitter 8 and the first optical window 5；First detector 9 is located at the second beam splitter 8
The light of top, the reflection of the second beam splitter 8 is received after the convergence of the first plus lens 14 by the first detector 9.
Third beam splitter 10, the second detector 11, the second plus lens 15, spectrum sensor 7 and the equal position of diverging lens 16
In the side of the second optical window 6.The light that first light source 2 and second light source 3 issue passes through the first optical window 5 and by water body
After partially absorbing, it is radiated on third beam splitter 10 across the second optical window 6, some light is reflexed to by third beam splitter 10
Second plus lens 15 is received after the convergence of the second plus lens 15 by the second detector 11.Across the light of third beam splitter 10
Line is received after the dispersion of diverging lens 16 by spectrum sensor 7.The available tested water of spectrum obtained by spectrum sensor 7
Organic pollutant and non-organic pollutant at being grouped as and concentration information in sample.
Spectral type water quality detecting device provided by the utility model may be implemented to organic and non-organic pollutant in water
On-line real-time measuremen.The present apparatus is not necessarily to reference solution, and bias light, turbidity, absorption cell is only completely eliminated with sample solution
Deng error, and by the photodiode detector with temperature and compensation of ageing function, to the Strength Changes of light source into
Row real-time compensation substantially increases the accuracy and stability of detection.The present apparatus integrates multiple functions optical path, reduces
The volume and complexity of system, is highly suitable for water quality on-line checking.
Spectral type water quality detecting device provided by the utility model when in use can be by memory by spectrum sensor 7
The information detected stores, and can also be passed to the information that spectrum sensor 7 detects far by signal transmission assembly
Thread processor, to realize on-line checking.
Therefore, water body detection device can also include buoy, connector, battery and signal transmission assembly.Signal transmission
Component can be with existing various communication modules or the combination, such as BDS, GPS, GLONASS, bluetooth, WiFi of communication module etc.
Communication module.Buoy is in disk form, is made of epoxy resin.Through-hole, the upper end of through-hole are offered in the center of buoy
It is provided with protection board, the lower end of through-hole is provided with connecting plate, and protection board, through-hole and connecting plate surround installation space, signal transmission
Component is mounted in installation space.Multiple connecting columns are fixedly connected on the lower end surface of protection board, connecting column passes through the buoy
It is threadedly coupled afterwards with the connecting plate.Connector is in the shape of a rod, and the upper end of connector and connecting plate are connected by modes such as welding, even
There is cavity, the lower end of cavity is battery installation cavity, and battery is mounted in the battery installation cavity inside fitting.Under connecting plate
End is fixedly installed with hook.Hook is two, is located at the two sides of connector.Shell 1 is mounted on the lower end of connector.It is described
Signal transmission assembly is electrically connected with spectrum sensor 7, and the battery can be signal transmission assembly and first light source, the second light
The power supply of the parts such as source, spectrum sensor, the first detector and the second detector.
The sequencing of embodiment of above is not only for ease of description, represent the superiority and inferiority of embodiment.
Finally, it should be noted that embodiment of above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail referring to aforementioned embodiments, those skilled in the art should
Understand: it can still modify to technical solution documented by aforementioned each embodiment, or special to part of technology
Sign is equivalently replaced；And these are modified or replaceed, each reality of the utility model that it does not separate the essence of the corresponding technical solution
Apply the spirit and scope of mode technical solution.
Claims (9)
1. a kind of spectral type water quality detecting device, which is characterized in that the spectral type water quality detecting device includes shell (1),
One light source (2), second light source (3), the first beam splitter (4), the first optical window (5), the second optical window (6) and spectrum sensing
Device (7), first optical window (5) and the second optical window (6) are mounted on shell (1), first optical window (5)
It is oppositely arranged with the second optical window (6) and there are spacing, the first light sources (2), second light source (3), the first beam splitter
(4) and spectrum sensor (7) setting is in shell (1), and the first light source (2) can issue the light of 200-400nm wavelength,
The second light source (3) can issue the light of 300-1200nm wavelength, in the first light source (2) and first optical window
It is provided with the first beam splitter (4) between mouth (5), the light that the first light source (2) issues sequentially passes through first beam splitter
(4), it after the first optical window (5) and the second optical window (6), is received by the spectrum sensor (7), the second light source
(3) light issued sequentially enters first optical window (5) and the second optical window after first beam splitter (4) reflection
After mouth (6), received by the spectrum sensor (7).
2. spectral type water quality detecting device according to claim 1, which is characterized in that the spectral type water quality detecting device
It further include the second beam splitter (8) and the first detector (9) for detecting light intensity, the second beam splitter (8) setting exists
Between first beam splitter (4) and first optical window (5), second beam splitter (8) can will be through described first
The light portion that beam splitter (4) projects reflexes to first detector (9) and is received by first detector (9).
3. spectral type water quality detecting device according to claim 2, which is characterized in that the spectral type water quality detecting device
It further include third beam splitter (10) and the second detector (11) for detecting light intensity, third beam splitter (10) setting
Between the spectrum sensor (7) and second optical window (6), the third beam splitter can pass through described second
The light portion of optical window (6) reflexes to second detector (11) and is received by second detector (11).
4. spectral type water quality detecting device according to claim 1, which is characterized in that the first light source (2) is LED purple
Outer light source is provided with for issuing the LED ultraviolet source between the first light source (2) and first beam splitter (4)
Light collimation be collimated light beam the first collimation lens (12).
5. spectral type water quality detecting device according to claim 1, which is characterized in that the second light source is wide range LED
Light source is provided with for the light of the wide range LED light source is quasi- between the wide range LED light source and the second beam splitter (8)
Straight is the second collimation lens (13) of collimated light beam.
6. spectral type water quality detecting device according to claim 3, which is characterized in that first detector (9) and institute
Stating the second detector (11) is photodiode detector, between first detector (9) and second beam splitter (8)
The first convergence being additionally provided with for the light that second beam splitter (8) is reflected to be converged to first detector (9) is saturating
Mirror (14) is additionally provided with for by the third beam splitter between second detector (11) and the third beam splitter (10)
(10) light reflected converges to the second plus lens (15) of second detector (11).
7. spectral type water quality detecting device according to claim 6, which is characterized in that the third beam splitter (10) and institute
It states and is additionally provided with diverging lens (16) between spectrum sensor (7), pass through the light of the third beam splitter (10) through the expansion
After dissipating lens (16) diffusion, received by the spectrum sensor (7).
8. spectral type water quality detecting device according to claim 7, which is characterized in that have front and back on the shell (1)
The channel (17) of perforation, first optical window (5) and the second optical window (6) are located at the two sides in the channel (17).
9. spectral type water quality detecting device according to claim 6, which is characterized in that the photodiode detector is
Photodiode detector with temperature and compensation of ageing function.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157485A (en) * | 2019-12-19 | 2020-05-15 | 郑州轻工业大学 | Rapid water quality detection device and detection method thereof |
| CN112924402A (en) * | 2021-01-26 | 2021-06-08 | 中国海洋大学 | Absorbance sensor for underwater dragging system and working method thereof |
-
2018
- 2018-12-27 CN CN201822208941.0U patent/CN209311327U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157485A (en) * | 2019-12-19 | 2020-05-15 | 郑州轻工业大学 | Rapid water quality detection device and detection method thereof |
| CN112924402A (en) * | 2021-01-26 | 2021-06-08 | 中国海洋大学 | Absorbance sensor for underwater dragging system and working method thereof |
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