CN108120692A - Portable COD monitors - Google Patents
Portable COD monitors Download PDFInfo
- Publication number
- CN108120692A CN108120692A CN201810046970.3A CN201810046970A CN108120692A CN 108120692 A CN108120692 A CN 108120692A CN 201810046970 A CN201810046970 A CN 201810046970A CN 108120692 A CN108120692 A CN 108120692A
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- CN
- China
- Prior art keywords
- communication interface
- unit
- electrically connected
- central processing
- processing unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004891 communication Methods 0.000 claims abstract description 31
- 238000012545 processing Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004020 conductor Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 239000005416 organic matter Substances 0.000 abstract description 4
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
- G01N21/3151—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using two sources of radiation of different wavelengths
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Toxicology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a kind of portable COD monitors, including：Control display system, it includes the first central processing unit, interface display unit, the first communication interface and key-press input unit has been electrically connected in first central processing unit, first communication interface is electrically connected at key-press input unit, and first communication interface, key-press input unit and interface display unit are electrically connected with signal output unit；Sensor measuring system, it includes the second central processing unit, temperature signal unit, UV light sources and the second communication interface has been electrically connected in second central processing unit, and the UV light sources are electrically connected with tested water body, and the organic matter being dissolved in the water has absorption to ultraviolet light.Therefore, by measuring degree of absorption of these organic matters to 254nm length ultraviolet light, the total amount of organic pollutants can be weighed.
Description
Technical field
The present invention relates to COD monitor technical fields, are specially a kind of portable COD monitors.
Background technology
The standard law measure of COD is using reflux resolution titration, and this method digestion time length when small (2), energy consumption are big, examination
Agent is costly, efficiency is low, usually perplexs actual operator.The instrument uses special-purpose catalyst and oxidant, and water sample is adding in specially
After oxidant and catalyst, heating is cleared up, and into Cr3+, the Cr3+ contents after reduction pass through the Cr6+ partial reductions in oxidant
Colorimetric estimation returns calculating, converses the actual concentrations of COD in water sample (cr).Eighth generation is specially according to China's water quality situation
And a high-grade COD analyzers for being provided simultaneously with high-low-range that national legislation is required and developed.The organic matter being dissolved in the water
There is absorption to ultraviolet light.Therefore, by measuring degree of absorption of these organic matters to 254nm length ultraviolet light, can weigh
Measure the total amount of organic pollutants.
The sensor of existing COD analyzers cannot be sensitively to attenuation, and it eliminates the interference performance of suspended material
It is weaker, cause measured value unstable, measurement reliability reduces.
The content of the invention
The purpose of the present invention is to solve shortcoming in the prior art, and a kind of portable COD monitorings proposed
Instrument.
To achieve the above object, the present invention provides following technical solution：
A kind of portable COD monitors, including：
Display system is controlled, includes the first central processing unit, first central processing unit has been electrically connected
Interface display unit, the first communication interface and key-press input unit, first communication interface are electrically connected at key-press input list
Member, first communication interface, key-press input unit and interface display unit are electrically connected with signal output unit；
Sensor measuring system, includes the second central processing unit, and second central processing unit is electrically connected
There are temperature signal unit, UV light sources and the second communication interface, the UV light sources are electrically connected with tested water body.
Preferably, first communication interface and the second communication interface are RS485 interfaces.
Preferably, first communication interface is connected to the second communication interface by conductor signal.
Preferably, the interface display unit is colour TFT screens.
Preferably, first central processing unit, interface display unit, key-press input unit, signal output unit and
One communication interface is connected to power supply power supply.
Compared with prior art, the beneficial effects of the invention are as follows：The organic matter being dissolved in the water, which has ultraviolet light, to be absorbed
Effect.Therefore, by measuring degree of absorption of these organic matters to 254nm length ultraviolet light, organic pollutants can be weighed
Total amount.This money COD sensors use two-way light source, all the way 254nm ultraviolet lights, all the way the ultraviolet reference light of 365nm, can be automatically right
Attenuation and the interference for eliminating suspended material, so as to fulfill more stable and reliable measured value.Then RS485 digital signals are passed through
Give transmitting measured values to control display system, control display system the sensor such as can calibrate with man-machine interaction unit
Configuration, and measurement result is shown by colored TFT screens, while output switching signal controls for external.
Description of the drawings
Fig. 1 is principle schematic diagram of the present invention；
Fig. 2 is present invention control display system schematics；
Fig. 3 is inventive sensor measuring system schematic diagram.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
- 3 are please referred to Fig.1, the present invention provides a kind of technical solution：
A kind of portable COD monitors, including：
Display system is controlled, includes the first central processing unit, first central processing unit has been electrically connected
Interface display unit, the first communication interface and key-press input unit, first communication interface are electrically connected at key-press input list
Member, first communication interface, key-press input unit and interface display unit are electrically connected with signal output unit；
Sensor measuring system, includes the second central processing unit, and second central processing unit is electrically connected
There are temperature signal unit, UV light sources and the second communication interface, the UV light sources are electrically connected with tested water body.
Specifically, first communication interface and the second communication interface are RS485 interfaces.
Specifically, first communication interface is connected to the second communication interface by conductor signal.
Specifically, the interface display unit is colour TFT screens.
Specifically, first central processing unit, interface display unit, key-press input unit, signal output unit and
One communication interface is connected to power supply power supply.
Operation principle during specific implementation is that the organic matter being dissolved in the water has absorption to ultraviolet light.Therefore, lead to
It crosses and measures degree of absorption of these organic matters to 254nm length ultraviolet light, the total amount of organic pollutants can be weighed.This money
COD sensors use two-way light source, 254nm ultraviolet lights all the way, all the way the ultraviolet reference light of 365nm, can focus automatically road attenuation and
The interference of suspended material is eliminated, so as to fulfill more stable and reliable measured value.Then measured value is passed by RS485 digital signals
Control display system is defeated by, control display system can carry out sensor the configuration such as to calibrate, and pass through with man-machine interaction unit
Colored TFT screens show measurement result, while output switching signal controls for external.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of portable COD monitors, which is characterized in that including：
Display system is controlled, includes the first central processing unit, interface has been electrically connected in first central processing unit
Display unit, the first communication interface and key-press input unit, first communication interface are electrically connected at key-press input unit, institute
It states the first communication interface, key-press input unit and interface display unit and is electrically connected with signal output unit；
Sensor measuring system, includes the second central processing unit, and temperature has been electrically connected in second central processing unit
Degree signal element, UV light sources and the second communication interface, the UV light sources are electrically connected with tested water body.
2. a kind of portable COD monitors according to claim 1, it is characterised in that：First communication interface and
Two communication interfaces are RS485 interfaces.
3. a kind of portable COD monitors according to claim 1, it is characterised in that：First communication interface passes through
Conductor signal is connected to the second communication interface.
4. a kind of portable COD monitors according to claim 1, it is characterised in that：The interface display unit is coloured silk
Color TFT screens.
5. a kind of portable COD monitors according to claim 1, it is characterised in that：First central processing unit, boundary
Face display unit, key-press input unit, signal output unit and the first communication interface are connected to power supply power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046970.3A CN108120692A (en) | 2018-01-18 | 2018-01-18 | Portable COD monitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046970.3A CN108120692A (en) | 2018-01-18 | 2018-01-18 | Portable COD monitors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108120692A true CN108120692A (en) | 2018-06-05 |
Family
ID=62233227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810046970.3A Pending CN108120692A (en) | 2018-01-18 | 2018-01-18 | Portable COD monitors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108120692A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580519A (en) * | 2019-01-29 | 2019-04-05 | 杭州电子科技大学 | A kind of surface water COD on-line monitoring system and method based on ELM algorithm |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149166A (en) * | 2013-01-31 | 2013-06-12 | 中国计量学院 | Dual-wavelength ultraviolet method organic wastewater chemical oxygen demand (COD) detection device and method |
| CN106153563A (en) * | 2015-03-16 | 2016-11-23 | 北京中清国研环境技术研究院 | A kind of miniature COD on-line detecting system |
| CN205786295U (en) * | 2016-07-20 | 2016-12-07 | 中国科学院烟台海岸带研究所 | A kind of double light path water body environment on-line measurement device |
| CN206583795U (en) * | 2016-12-30 | 2017-10-24 | 中国科学院西安光学精密机械研究所 | Multi-parameter water quality real-time online monitoring device based on spectrum method |
-
2018
- 2018-01-18 CN CN201810046970.3A patent/CN108120692A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149166A (en) * | 2013-01-31 | 2013-06-12 | 中国计量学院 | Dual-wavelength ultraviolet method organic wastewater chemical oxygen demand (COD) detection device and method |
| CN106153563A (en) * | 2015-03-16 | 2016-11-23 | 北京中清国研环境技术研究院 | A kind of miniature COD on-line detecting system |
| CN205786295U (en) * | 2016-07-20 | 2016-12-07 | 中国科学院烟台海岸带研究所 | A kind of double light path water body environment on-line measurement device |
| CN206583795U (en) * | 2016-12-30 | 2017-10-24 | 中国科学院西安光学精密机械研究所 | Multi-parameter water quality real-time online monitoring device based on spectrum method |
Non-Patent Citations (1)
| Title |
|---|
| 周才进: "UV法COD检测仪设计", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580519A (en) * | 2019-01-29 | 2019-04-05 | 杭州电子科技大学 | A kind of surface water COD on-line monitoring system and method based on ELM algorithm |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180605 |
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| RJ01 | Rejection of invention patent application after publication |