CN206399841U - A kind of two-in-one water quality online analyzer - Google Patents
A kind of two-in-one water quality online analyzer Download PDFInfo
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- CN206399841U CN206399841U CN201621485005.9U CN201621485005U CN206399841U CN 206399841 U CN206399841 U CN 206399841U CN 201621485005 U CN201621485005 U CN 201621485005U CN 206399841 U CN206399841 U CN 206399841U
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Abstract
The utility model provides a kind of two-in-one water quality online analyzer, including peristaltic pump, multiple pipelines, agent bin, metering module, at least one valve and detection module, valve further comprises multiple-way valve and at least two 2/2-way valves, two 2/2-way valves are separately positioned on the two ends of detection module, peristaltic pump is communicated by pipeline with metering module, the upper end of metering module is communicated with peristaltic pump, lower end is communicated with multiple-way valve, and multiple-way valve is also connected by multiple pipelines with the different piece in agent bin respectively.Same Wavelength can be used due to determining Cr VI and nitrite nitrogen in water quality, a set of detection module can be shared.The cycle that each factor is individually tested is below 20 minutes, and the on-line checking frequency for meeting enterprise's discharge stain disease is generally the requirement of 2 hours/time.An instrument is only needed to, Cr VI can be achieved and the approximate of the nitrite nitrogen factor measures simultaneously, user cost is reduced.
Description
Technical field
The utility model is related to a kind of Water Test Kits, more particularly to a kind of to contained Cr VI in stain disease and underground water
The Water Test Kits monitored on-line with nitrite nitrogen content.
Background technology
Environmental problem turns into whole world focus of attention problem, and either developed country or developing country, all meet with
The negative effect brought by environmental pollution, some trade effluents, resident's sewage etc. is untreated be exhausted directly to surface water,
In lower water, the problem of causing water pollution is increasingly serious.Water pollution brings serious harm to the healthy of people.
Moreover, Cr VI belongs to heavy metal contaminants, with Strong oxdiative toxicity, found according to medical research, Cr VI has cause
The harm of cancer.Mainly there are the industrial wastewaters such as plating, process hides, chromate processed or chromic anhydride in the source of chromium in environment.
Nitrite is the intermediate product of nitrogen cycle, can be oxidized to nitrate, can also be reduced ammonification.Nitrite can
The normal hemoglobin of human body (low Ferri-hemoglobin) is oxidized into ferrihemoglobin, occur methemoglobinemia, go out
The symptom of existing histanoxia.Nitrite can react the nitrosamines material of generation tool carcinogenicity with secondary amine class.
In summary, it is significant to the on-line monitoring of Cr VI in ambient water quality and nitrite nitrogen content.
Current colorimetric method water quality meter is usually measurement monofactor, measures multiple factors and is accomplished by many instrument,
For a user, many instrument not only occupy larger space, and purchase cost is higher.
Utility model content
Main purpose of the present utility model, be to provide it is a kind of and meanwhile monitor on-line in stain disease and surface water Cr VI and
The water quality online analyzer of nitrite nitrogen content.
The utility model provide a kind of two-in-one water quality online analyzer, including peristaltic pump, multiple pipelines, agent bin,
Metering module, at least one valve and detection module, the valve further comprise multiple-way valve and at least two 2/2-ways
Valve, described two 2/2-way valves are separately positioned on the two ends of detection module, and one of 2/2-way valve passes through pipeline and institute
State multiple-way valve to be connected, the peristaltic pump is communicated by pipeline with metering module, upper end and the peristaltic pump phase of the metering module
Logical, lower end is communicated with the multiple-way valve, and the multiple-way valve is also connected by multiple pipelines with the different piece in agent bin respectively
Logical, the detection module includes colorimetric module.
Preferably, the agent bin includes zero standard portion, amount mark portion, water sample portion, at least one reagent section, waste collection bucket.
Preferably, the different pipelines include zero standard pipeline, it is amount mark pipeline, water sample pipeline, at least one reagent cartridge, useless
Liquid pipeline.
Preferably, the composition that the two-in-one water quality online analyzer determines in water sample is Cr VI and nitrite nitrogen.
Preferably, the metering module includes high precision photoelectric detection means.
Preferably, the minimum measurement unit of the metering module is 0.5ml, and highest measurement unit is 2ml.
Preferably, the Cr VI in water sample, which is often measured, once needs the amount of reagent for 1mL, and nitrite nitrogen is often measured once
The amount for needing reagent is 0.5mL.
Preferably, the optical source wavelength that the detection module is used is 540nm.
Preferably, the Cr VI and nitrite nitrogen determined in water quality uses Same Wavelength, what each factor was individually tested
Cycle is below 20 minutes.
Preferably, the agent bin is configured with micro refrigerator.
Compared with prior art, a kind of two-in-one water quality online analyzer of the application has that purchase cost is low, reagent dosage
Less, waste liquid discharging amount is few, maintenance is small and the low outstanding advantages of measurement lower limit.
Brief description of the drawings
Fig. 1 is a kind of structural representation of two-in-one water quality online analyzer of the utility model.
Embodiment
Embodiment of the present utility model is further detailed below in conjunction with accompanying drawing.
The utility model can measure the two-in-one water quality online analyzer of Cr VI and nitrite nitrogen there is provided a kind of,
It mainly includes peristaltic pump 1, metering module 2, the multiple-way valve 3 switched for pipeline, the detection module for being used to provide sampling power
5th, it is separately positioned on the 2/2-way valve 4 and 6 at the two ends of detection module 5.
The peristaltic pump 1 is communicated by pipeline with metering module 2, and the upper end of the metering module 2 is communicated with peristaltic pump 1,
Lower end is communicated with multiple-way valve 3.The multiple-way valve 3 by different pipelines respectively with metering module 2, detection module 5 and agent bin
In zero standard, amount mark, water sample, reagent, waste collection barrel pipeline 301-306,308 communicate.The detection module 5 is respectively by it
The 2/2-way valve 4 and 6 of upper and lower ends is communicated in lower end with multiple-way valve 3, upper end is communicated with air, and wherein 2/2-way valve 4 leads to
Pipeline 307 is crossed with multiple-way valve 3 to be connected.Also include agent bin, agent bin includes zero standard, amount mark, water sample, reagent, waste collection
Bucket pipeline 301-306, the 308 zero standard portions connected respectively, amount mark portion, water sample portion, reagent section, waste collection bucket 311-316,317.
Colorimetric cylinder (not shown) is provided with detection module 5.
The metering module 2 includes high precision photoelectric detection means (not shown) and the peristaltic pump 1 for providing power, real
The accurate trace quantity metering of existing water sample and reagent volume.The minimum measurement unit of the metering module 2 is 0.5ml, highest measurement unit
For 2ml, higher volume of metering can be realized by repeatedly measuring.By the metering module 2, the Cr VI in water sample is often surveyed
Amount once only needs 1mL reagents, and nitrite nitrogen, which is often measured, once only needs 0.5mL reagents.Compared with the similar instrument of the industry,
Reagent dosage and waste liquid discharging amount are greatly reduced, devil liquor recovery processing cost is reduced, and reduce the work of attendant
Amount.According to《The measure AAS of water quality nitrite nitrogen》(GB7493087) and《The measure hexichol phosphinylidyne of water quality Cr VI
Two hydrazine AASs》(GB 7467-87), the detection module uses 540nm wavelength light sources.Due to determining six in water quality
Valency chromium and nitrite nitrogen can use Same Wavelength, therefore only need to a set of detection module and can just test two kinds of factors.
The measurement of Cr VI and the nitrite nitrogen factor, the cycle that each factor is individually tested is below 20 minutes,
The on-line checking frequency for fully meeting enterprise's discharge stain disease is generally the requirement of 2 hours/time, it is possible to achieve Cr VI and nitrous
The approximate of the hydrochlorate nitrogen factor measures simultaneously.
The agent bin is configured with micro refrigerator, the nitrite nitrogen range calibration liquid apt to deteriorate for depositing, extension
The reagent shelf-life, the larger maintenance of maintenance in 1-2 weeks once is reduced to 1~2 month and safeguarded once.
The least concentration that Cr VI can be measured accurately is less than《Groundwater quality standard》(GB/T14848-93) III class water
Standard, is less than《Surface water quality discharge standard》(GB3838-2002) II class water quality standard.Nitrite nitrogen can be measured accurately most
Low concentration is less than《Groundwater quality standard》(GB/T14848-93) II class water quality standard.The utility model passes through automatic dilution work(
Can, high concentration water sample can be tested, the conventional on-line monitoring of industrial wastewater, sanitary sewage, underground water can be met.
Embodiment of the present utility model is described below by way of specific testing process.
Sexavalence chromium measurement：
1. measurement process
Rinse：Multiple-way valve 3 switches to water sample pipeline 308, while the dextrorotation of peristaltic pump 1 for providing sampling power
Turn, water sample is promoted in the gauge line in metering module 2, the photoelectric detection system in metering module 2 is by detecting that liquid level becomes
Change, control the rotation of peristaltic pump 1, realize the accurate measurement of volume of water sample.After water sample metering is finished, multiple-way valve 3 switches to waste liquid
Water sample is discharged, passes through multiple-way valve 3, sewer pipe by pipeline 306, the rotate counterclockwise of peristaltic pump 1 from the gauge line in metering module 2
Road 306, is emitted into waste collection bucket 316.Rinse operation is completed, the process is repeated, the operation of rinse twice is completed.
Sample introduction：Multiple-way valve 3 switches to water sample pipeline 308, while the dextrorotation of peristaltic pump 1 for providing sampling power
Turn, water sample is promoted in the gauge line in metering module 2, the photoelectric detection system in metering module 2 is by detecting that liquid level becomes
Change, control the rotation of peristaltic pump 1, realize the accurate measurement of volume of water sample.After water sample metering is finished, multiple-way valve 3 switches to pipeline
307, while lower end is communicated with pipeline 307, upper end is communicated with detection module 5 2/2-way valve 4 and lower end and the phase of detection module 5
The 2/2-way valve 6 that logical, upper end is communicated with air is opened, the rotate counterclockwise of peristaltic pump 1, by water sample from the meter in metering module 2
In buret, pushed to by multiple-way valve 3, pipeline 307,2/2-way valve 4 in the colorimetric cylinder in detection module 5.Push water sample complete
Bi Hou, closes 2/2-way valve 4 and 5.
Enter reagent：Multiple-way valve 3 switches to reagent cartridge 303, while the dextrorotation of peristaltic pump 1 for providing sampling power
Turn, reagent is promoted in the gauge line in metering module 2, the photoelectric detection system in metering module 2 is by detecting that liquid level becomes
Change, control the rotation of peristaltic pump 1, realize the accurate measurement of reagent volume.After reagent metering is finished, multiple-way valve 3 switches to pipeline
307, while lower end is communicated with pipeline 307, upper end is communicated with detection module 5 2/2-way valve 4 and lower end and the phase of detection module 5
The 2/2-way valve 6 that logical, upper end is communicated with air is opened, the rotate counterclockwise of peristaltic pump 1, by reagent from the meter in metering module 2
In buret, pushed to by multiple-way valve 3, pipeline 307,2/2-way valve 4 in the colorimetric cylinder in detection module 5.Push reagent complete
Bi Hou, peristaltic pump 1 continues rotate counterclockwise 20 seconds, air is blasted in the colorimetric cylinder in detection module 5, realizes reagent and water sample
Uniform mixing, be then shut off 2/2-way valve 4 and 5.
Colorimetric：The light source of detection module 5 is opened, after three minutes, the suction after detection water sample reaction solution at 540nm wavelength
The collection of letters number, is used as measured value.
Emptying：After detection is finished, multiple-way valve 3 switches to pipeline 307, while 2/2-way valve 4 and 6 is opened, peristaltic pump 1 is suitable
Hour hands rotate, and are entered by the public pipeline of 2/2-way valve 4, pipeline 307, multiple-way valve 3, connection multiple-way valve 3 and metering module 2
Gauge line in metering module 2, is promoted to after setting liquid level, and multiple-way valve 3 switches to waste-solution line 306, and peristaltic pump 1 revolves counterclockwise
Turn, waste liquid is discharged from the gauge line in metering module 2, by multiple-way valve 3, waste-solution line 306, be emitted into waste collection bucket
In 316.The process is repeated, untill waste liquid is emptied from the colorimetric cylinder in detection module 5.
Cleaning：Multiple-way valve 3 switches to zero standard pipeline 301, while peristaltic pump 1 turns clockwise, zero standard is promoted into metering
In gauge line in module 2, the photoelectric detection system in metering module 2 is by detecting that liquid level changes, turn of control peristaltic pump 1
It is dynamic, realize the accurate measurement of zero standard volume.After zero standard metering is finished, multiple-way valve 3 switches to pipeline 307, while 2/2-way valve 4
Opened with 2/2-way valve 6, the rotate counterclockwise of peristaltic pump 1, by zero standard from the gauge line in metering module 2, pass through multiple-way valve
3rd, pipeline 307,2/2-way valve 4 are pushed in the colorimetric cylinder in detection module 5.After push zero standard is finished, peristaltic pump continues inverse
Hour hands are rotated 20 seconds, and air is blasted into the colorimetric cylinder in detection module 5, are promoted the cleaning of colorimetric tube wall, are then shut off two
Two-way valve 4 and 6.Then, operated by above-mentioned emptying, by cleaning waste liquid discharge.A cleaning operation is completed, the process is repeated,
Complete cleaning operation twice.
Wherein, when second cleans, when in colorimetric cylinder of the zero standard in detection module 5, completing after air-blowing operation,
The absorption signal of zero standard is detected at 540nm wavelength, reference value is used as.
Calculate：Instrument draws the absorbance of this measurement, the absorbance is pressed automatically by measured value and reference value is calculated
The standard curve stored according to instrument is calculated, and draws the hexavalent chromium concentration value of this measurement.
2. calibration process：
Instrument automatic Calibration, rinse and automatically switch to when entering water sample from pipeline 301 extract zero standard (Zero calibration) and from
The extracted amount mark of pipeline 302 (demarcation of amount mark).Other flows are consistent with measurement process.
Nitrite nitrogen is measured：
1. measurement process
When entering reagent, multiple-way valve 3 switches to pipeline 305 and extracts nitrite nitrogen detection reagent, other processes and sexavalence
Chromium is consistent.
2. calibration process
Instrument automatic Calibration, rinse and automatically switch to when entering water sample from pipeline 301 extract zero standard (Zero calibration) and from
The extracted amount mark of pipeline 304 (demarcation of amount mark).Other flows are consistent with measurement process.
The measurement of Cr VI and the nitrite nitrogen factor, the cycle that each factor is individually tested is below 20 minutes, completely
The on-line checking frequency for meeting enterprise's discharge stain disease is generally the requirement of 2 hours/time.Only need to an instrument, you can realize
Cr VI and the approximate of the nitrite nitrogen factor measure simultaneously.
The utility model is described in detail above embodiment, but these are not constituted to this practicality newly
The limitation of type.Protection domain of the present utility model is not limited with above-mentioned embodiment, as long as those of ordinary skill in the art's root
The equivalent modification made according to the utility model disclosure or change, should all include the protection domain described in claims
It is interior.
Claims (10)
1. a kind of two-in-one water quality online analyzer, including peristaltic pump, multiple pipelines, agent bin, metering module, at least one valve
Door and detection module, it is characterised in that：The valve further comprises multiple-way valve and at least two 2/2-way valves, described
Two 2/2-way valves are separately positioned on the two ends of detection module, and one of 2/2-way valve passes through pipeline and the multiple-way valve
Be connected, the peristaltic pump is communicated by pipeline with metering module, the upper end of the metering module is communicated with peristaltic pump, lower end with
The multiple-way valve is communicated, and the multiple-way valve is also connected by multiple pipelines with the different piece in agent bin respectively, the inspection
Surveying module includes colorimetric module.
2. two-in-one water quality online analyzer according to claim 1, it is characterised in that：The agent bin includes zero standard
Portion, amount mark portion, water sample portion, at least one reagent section, waste collection bucket.
3. two-in-one water quality online analyzer according to claim 1, it is characterised in that：The different pipelines include zero standard
Pipeline, amount mark pipeline, water sample pipeline, at least one reagent cartridge, waste-solution line.
4. two-in-one water quality online analyzer according to claim 1, it is characterised in that：The two-in-one water quality is divided online
The composition that analyzer determines in water sample is Cr VI and nitrite nitrogen.
5. two-in-one water quality online analyzer according to claim 1, it is characterised in that：The metering module includes high-precision
Spend photoelectric detection system.
6. two-in-one water quality online analyzer according to claim 1, it is characterised in that：The minimum metering of the metering module
Unit is 0.5ml, and highest measurement unit is 2ml.
7. two-in-one water quality online analyzer according to claim 4, it is characterised in that：Cr VI in water sample is often measured
The amount for once needing reagent is 1mL, and nitrite nitrogen, which is often measured, once needs the amount of reagent for 0.5mL.
8. two-in-one water quality online analyzer according to claim 1, it is characterised in that：The light that the detection module is used
Source wavelength is 540nm.
9. two-in-one water quality online analyzer according to claim 4, it is characterised in that：Determine water quality in Cr VI and
Nitrite nitrogen uses Same Wavelength, and the cycle that each factor is individually tested is below 20 minutes.
10. two-in-one water quality online analyzer according to claim 1, it is characterised in that：The agent bin is configured with micro-
Type refrigerator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621485005.9U CN206399841U (en) | 2016-12-30 | 2016-12-30 | A kind of two-in-one water quality online analyzer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621485005.9U CN206399841U (en) | 2016-12-30 | 2016-12-30 | A kind of two-in-one water quality online analyzer |
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ID=59516179
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186989A (en) * | 2019-05-31 | 2019-08-30 | 中兴仪器（深圳）有限公司 | A kind of water quality heavy metal online analyzer |
| CN110208354A (en) * | 2019-04-02 | 2019-09-06 | 深圳市智创环保科技有限公司 | A kind of portable water quality in-line analyzer |
| CN113029955A (en) * | 2021-03-29 | 2021-06-25 | 江苏省环境监测中心 | Multichannel multithreading CODcr measurement system |
| CN114088648A (en) * | 2021-12-07 | 2022-02-25 | 广东盈峰科技有限公司 | Gas-liquid dual isolation method for multi-ported valve micro-reagent sampling |
| CN114252573A (en) * | 2020-09-24 | 2022-03-29 | 运泽惠通(北京)技术有限公司 | Application flow path for water treatment or detection |
-
2016
- 2016-12-30 CN CN201621485005.9U patent/CN206399841U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208354A (en) * | 2019-04-02 | 2019-09-06 | 深圳市智创环保科技有限公司 | A kind of portable water quality in-line analyzer |
| CN110186989A (en) * | 2019-05-31 | 2019-08-30 | 中兴仪器（深圳）有限公司 | A kind of water quality heavy metal online analyzer |
| CN114252573A (en) * | 2020-09-24 | 2022-03-29 | 运泽惠通(北京)技术有限公司 | Application flow path for water treatment or detection |
| CN113029955A (en) * | 2021-03-29 | 2021-06-25 | 江苏省环境监测中心 | Multichannel multithreading CODcr measurement system |
| CN114088648A (en) * | 2021-12-07 | 2022-02-25 | 广东盈峰科技有限公司 | Gas-liquid dual isolation method for multi-ported valve micro-reagent sampling |
| CN114088648B (en) * | 2021-12-07 | 2024-03-01 | 广东盈峰科技有限公司 | Gas-liquid dual isolation method for sampling micro-reagent of multi-way valve |
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Address after: 518000 Room 301, building 2, runheng Industrial Zone, No.1, liuxiansan Road, 67 District, Xingdong community, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Bixing IOT Technology (Shenzhen) Co.,Ltd. Address before: 2-3 / F, building 2, runheng Dingfeng Industrial Park, Liuxian 2nd Road, Xin'an street, Bao'an District, Shenzhen, Guangdong 518000 Patentee before: ZTE INSTRUMENTS (SHENZHEN) Co.,Ltd. |