CN206540820U - A kind of chromium method UVCOD all-in-one on-line computing models - Google Patents
A kind of chromium method UVCOD all-in-one on-line computing models Download PDFInfo
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- CN206540820U CN206540820U CN201621366701.8U CN201621366701U CN206540820U CN 206540820 U CN206540820 U CN 206540820U CN 201621366701 U CN201621366701 U CN 201621366701U CN 206540820 U CN206540820 U CN 206540820U
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Abstract
The utility model is related to water quality on-line measuring device, more particularly to a kind of chromium method UVCOD all-in-one on-line computing models.A kind of chromium method UVCOD all-in-one on-line computing models, the monitor includes intake, water pump, optical detecting module, chemical detection module, host computer, discharge outlet and liquid waste collector；Described water pump is connected to intake, and water pump water outlet pipeline is divided into two front ends respectively with described optical detecting module and chemical detection module and is connected；Optical detecting module rear end is connected with discharge outlet, and the rear end of chemical detection module is connected with liquid waste collector；Described host computer is connected gathered data with optical detecting module and chemical detection module respectively.Two kinds of measuring methods are combined by the detector, and two modules are fitted into same instrument, the defect of other side is made up using respective advantage, there is the characteristics of both are separate mutual auxiliary, reach short interval, and stability is high, the good purpose of adaptability.
Description
Technical field
The utility model is related to water quality on-line measuring device, more particularly to a kind of chromium method UVCOD all-in-one on-line computing models.
Background technology
Chromium method UVCOD all-in-one on-line computing models are a kind of instruments of measurement COD concentration.COD is Chemical Oxygen
Demand（COD）Abbreviation, be judge water quality quality one of standard.Detection COD methods totally substantially have five
Kind.It is potassium dichromate method respectively, permanganimetric method, electrochemical process, TOC turns COD methods and ultraviolet spectroscopy.Here two are mainly said
Kind：
The potassium dichromate method of national standard surveys COD, under sour environment, and with organic matter in water quality redox occurs for potassium bichromate
Reaction, produces discoloration, then detects its absorbance with wavelength 440nm, linear using absorbance and COD concentration, calculates water
Middle COD concentration values.Its advantage is that data stability is high, the features such as adaptability is good.Have the disadvantage that interval time is long, easily utilize space
Sewage effluent；Due to there is a potassium bichromate, the chemical reagent such as mercuric sulfate, and reacted and can produce a large amount of waste liquids, easily cause two
Secondary pollution；Silver sulfate contains precious metal element, so medicament is more expensive, maintenance cost is higher.
The ultraviolet spectroscopy of non-national standard surveys COD, and foreign countries more popularize.Organic substance in water can absorbing wavelength be 250nm ~
270nm light, then remaining light intensity is detected with detector, absorbance is calculated using Lambert-Beer's law, then entered with multiple LEDs
COD concentration values in water are measured after row determining amount, COMPREHENSIVE CALCULATING.Its advantage is that pure physical measuring methods are pollution-free, measurement interval
Time is short, and maintenance cost is relatively low.Have the disadvantage that data stability relatively chromium method is low, it is impossible to be used in the survey containing saturated hydrocarbons water sample
Amount.
The content of the invention
In order to solve above-mentioned technical problem, the utility model purpose is to provide a kind of chromium method UVCOD all-in-ones and supervised online
Instrument is surveyed, two kinds of measuring methods are combined, two modules are fitted into same instrument, respective advantage is utilized by the monitor
The defect of other side is made up, there is the characteristics of both are separate mutual auxiliary, short interval is reached, stability is high, and adaptability is good
Purpose.
In order to realize above-mentioned purpose, the utility model employs following technical scheme：
A kind of chromium method UVCOD all-in-one on-line computing models, the monitor includes intake, water pump, optical detecting module, change
Learn detection module, host computer, discharge outlet and liquid waste collector；Described water pump is connected to intake, and water pump water outlet pipeline is divided into
Two front ends respectively with described optical detecting module and chemical detection module are connected；Optical detecting module rear end and draining
Mouth is connected, and the rear end of chemical detection module is connected with liquid waste collector；Described host computer respectively with optical detecting module
Be connected gathered data with chemical detection module.
Preferably, the monitor also includes rack, described optical detecting module, chemical detection module and host computer is set
Put in rack.
Preferably, the monitor also includes hand valve, hand valve is parallel-connected to intake with water pump.
Preferably, chemical detection module surveys COD modules for the potassium dichromate method of national standard.The potassium dichromate method of national standard is surveyed
With organic matter in water quality redox reaction occurs for COD, in acid condition, potassium bichromate, produces discoloration, then use wavelength
440nm detects its absorbance, linear using absorbance and COD concentration, calculates COD concentration values in water.
Preferably, optical detecting module is the ultraviolet flash ranging COD modules of non-national standard.The ultraviolet flash ranging COD of non-national standard, water
The light that middle organic matter meeting absorbing wavelength is 250nm ~ 270nm, then remaining light intensity is detected with detector, utilize Lambert-Beer's law
Absorbance is calculated, then is carried out with multiple LEDs measuring COD concentration values in water after determining amount, COMPREHENSIVE CALCULATING.
Two kinds of measuring methods are combined by the utility model as a result of above-mentioned technical scheme, by two modules
It is fitted into same instrument, the defect of other side is made up using respective advantage, prevents enterprise from implementing in the chromium method COD detection neutral gear phases
Arrange, and periodically calibrated using chromium method COD to UV methods COD steathily, there is the characteristics of both are separate mutual auxiliary.Reach short
Interval, stability is high, the good purpose of adaptability.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model chromium method UVCOD all-in-one on-line computing models.
In Fig. 1 marked as：1 is intake, and 2 be hand valve, and 3 be water pump, and 4 be optical detecting module, and 5 be chemical detection mould
Block, 6 be host computer, and 7 be rack, and 8 be discharge outlet, and 9 be liquid waste collector.
Embodiment
Embodiment of the present utility model is made a detailed explanation below in conjunction with the accompanying drawings.
A kind of chromium method UVCOD all-in-one on-line computing models as shown in Figure 1, the monitor includes intake 1, hand valve 2, water
Pump 3, optical detecting module 4, chemical detection module 5, host computer 6, rack 7, discharge outlet 8 and liquid waste collector 9.Described water pump
3 are connected to intake 1, and hand valve 2 is parallel-connected to intake 1 with water pump 3.The outlet pipeline of water pump 3 be divided into two respectively with it is described
Optical detecting module 4 be connected with the front end of chemical detection module 5；Chemical detection module 5 is surveyed for the potassium dichromate method of national standard
COD modules, optical detecting module 4 is the ultraviolet flash ranging COD modules of non-national standard.The rear end of optical detecting module 4 is connected with discharge outlet 8
Connect, the rear end of chemical detection module 5 is connected with liquid waste collector 9；Described host computer 6 respectively with optical detecting module 4 and
Chemical detection module 5 is connected gathered data.Described optical detecting module 4, chemical detection module 5 and host computer 6 is arranged on
In rack 7.
Optical detecting module 4 then throws liquid intake 1 into optical detecting module 4 first by UV schools zero with pump in Fig. 1
After detect, if data are normal, data are directly uploaded to storage.If continuous abnormal occur in data, it can keep sample and trigger chemical mould
Block is measured, and is thrown water into chemical detection module 5 and is detected, if data are normal, is carried out UV method automatic zero adjustments and is ready for down
Secondary measurement.If data exception, triggering alarm, and upload data.Waste liquid is discharged to after the flow of chemical detection module 5 is covered useless
In collection 9, after the detection of optical detecting module 4 is finished, water sample is exhausted directly to discharge outlet 8.
Claims (5)
1. a kind of chromium method UVCOD all-in-one on-line computing models, it is characterised in that：The monitor includes intake（1）, water pump（3）、
Optical detecting module（4）, chemical detection module（5）, host computer（6）, discharge outlet（8）And liquid waste collector（9）；Described water pump
（3）It is connected to intake（1）, water pump（3）Outlet pipeline be divided into two respectively with described optical detecting module（4）With chemistry inspection
Survey module（5）Front end be connected；Optical detecting module（4）Rear end and discharge outlet（8）It is connected, chemical detection module（5）'s
Rear end and liquid waste collector（9）It is connected；Described host computer（6）Respectively with optical detecting module（4）With chemical detection module
（5）Be connected gathered data.
2. a kind of chromium method UVCOD all-in-one on-line computing models according to claim 1, it is characterised in that：The monitor is also
Including rack（7）, described optical detecting module（4）, chemical detection module（5）And host computer（6）It is arranged on rack（7）It is interior.
3. a kind of chromium method UVCOD all-in-one on-line computing models according to claim 1, it is characterised in that：The monitor is also
Including hand valve（2）, hand valve（2）With water pump（3）It is parallel-connected to intake（1）.
4. a kind of chromium method UVCOD all-in-one on-line computing models according to claim 1 or 2, it is characterised in that：Chemical detection
Module（5）COD modules are surveyed for the potassium dichromate method of national standard.
5. a kind of chromium method UVCOD all-in-one on-line computing models according to claim 1 or 2, it is characterised in that：Optical detection
Module（4）For the ultraviolet flash ranging COD modules of non-national standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621366701.8U CN206540820U (en) | 2016-12-13 | 2016-12-13 | A kind of chromium method UVCOD all-in-one on-line computing models |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621366701.8U CN206540820U (en) | 2016-12-13 | 2016-12-13 | A kind of chromium method UVCOD all-in-one on-line computing models |
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| Publication Number | Publication Date |
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| CN206540820U true CN206540820U (en) | 2017-10-03 |
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| CN201621366701.8U Active CN206540820U (en) | 2016-12-13 | 2016-12-13 | A kind of chromium method UVCOD all-in-one on-line computing models |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254521A (en) * | 2018-01-23 | 2018-07-06 | 苏州卫水环保科技有限公司 | A kind of combined type COD water quality in-line analyzer and its detecting system and method |
-
2016
- 2016-12-13 CN CN201621366701.8U patent/CN206540820U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254521A (en) * | 2018-01-23 | 2018-07-06 | 苏州卫水环保科技有限公司 | A kind of combined type COD water quality in-line analyzer and its detecting system and method |
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