CN203894168U - Online water quality comprehensive toxicity detection device - Google Patents
Online water quality comprehensive toxicity detection device Download PDFInfo
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- CN203894168U CN203894168U CN201420298813.9U CN201420298813U CN203894168U CN 203894168 U CN203894168 U CN 203894168U CN 201420298813 U CN201420298813 U CN 201420298813U CN 203894168 U CN203894168 U CN 203894168U
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Abstract
The utility model relates to an online water quality comprehensive toxicity detection device utilizing luminous bacteria. The device comprises a sample injection system, a detecting system and a transmission assembly, wherein the sample injection system comprises a multichannel direction choosing valve, a three-way valve and a peristaltic pump, wherein all peripheral connectors of the multichannel direction choosing valve are respectively and correspondingly connected with sample inlets of all reagents and detecting assemblies through pipelines; the detecting system comprises a rotatable black aluminum block, a fixing outer hood and a photoelectric detector; a plurality of sample pools are arranged at the periphery of the black aluminum block and are respectively provided with light transmitting channels horizontally extending to the edge of the black aluminum block; the black aluminum block is connected with the transmission assembly to rotate; the outer hood can be connected with the photoelectric detector through a detecting window and can be selectively communicated with the light transmitting channel of any one sample pool in the black aluminum block in a rotating manner. The device can be used for directly detecting toxicity information of water samples in different dilution ratios without the guiding of optical fibers, so that the toxicity characteristics of the water samples are comprehensively judged according to the data of light-emitting inhibition rates of the water samples in the different dilution ratios, and thus detecting the sensitivity can be detected.
Description
Technical field
The utility model relates to a kind of water quality toxicity analytical equipment, the water quality comprehensive toxicity on-line measuring device that particularly utilizes photobacteria to detect.
Background technology
The water quality comprehensive toxicity analysis of photobacteria method is to utilize toxicant in water sample can suppress the principle design of the luminous intensity of photobacteria, in equivalent blank sample and water sample to be measured, add respectively a certain amount of photobacteria, record respectively bacterial luminescence intensity level, then calculate luminous inhibiting rate by following formula:
H（%）=100（1-It/I
0）
Wherein, I
tbacterial luminescence intensity for water sample to be measured; I
0bacterial luminescence intensity for blank sample;
Luminous inhibiting rate is larger, represents that the toxicity of water sample to be measured is stronger.
At present, the water sample analysis instrument that utilizes photobacteria to detect water sample comprehensive toxicity adopts binary channels contradistinction system more, comprise a road blank Yang He mono-tunnel water sample to be measured, blank sample and water sample to be measured react with bacterium simultaneously, synchronously record the two luminous intensity I of photobacteria
0and I
tthereby, calculate the luminous inhibiting rate of testing sample to photobacteria.
But for the larger water sample of some toxicity, as at water sample Poisoning thing As
3+content reach in situation more than 4mg/L, for As
3+concentration is respectively 4mg/L and two high toxicity water samples of 5mg/L, and the luminous inhibiting rate recording is 100%, can not distinguish the difference between the high toxicity water sample of two kinds of variable concentrations.Therefore existing binary channels water sample toxicity analyzer is difficult to realize the accurate detection to high toxicity water sample.
Summary of the invention
In order to solve the deficiency of above-mentioned Toxicity of Water Samples analyser, the utility model provides a kind of water quality comprehensive toxicity on-line measuring device, this device can detect a plurality of water samples of different dilution ratios simultaneously, thereby obtains the more detailed comprehensive toxicity information of water sample, the comprehensive toxicity detection efficiency of increasing water quality.This device is simple, and cost is low.
The utility model water quality comprehensive toxicity on-line measuring device comprises sampling system, detection system and transmission component;
Described sampling system comprises multi-channel direction selecting valve, T-valve and peristaltic pump, and wherein, multi-channel direction selecting valve comprises a hub-interface and a plurality of peripheral interface, and hub-interface can be selected to communicate with any one peripheral interface to pivoted arm by a choosing; Described hub-interface is connected with quantitative ring, and is connected with peristaltic pump by T-valve; Each peripheral interface of described multi-channel direction selecting valve is corresponding connected respectively with each sample inlet of each reagent and detection components by pipeline;
Described detection system comprises rotatable black aluminium block, stationary housings and photoelectric detector, described black aluminium block is provided with the sample cell that a plurality of circumference are arranged, each sample cell is equipped with a light transmission passage that extends horizontally to black aluminium block outer rim, described stationary housings is provided with a detection window, this detection window is connected with photoelectric detector, and can select to communicate with the light transmission passage of any one sample cell in black aluminium block.
Described transmission component comprises motor, shaft coupling and angular transducer, and motor is connected with the central rotating shaft of black aluminium block by shaft coupling, and the positioning function by angular transducer can make black aluminium block rotate to an angle.
Described peristaltic pump connects the first three-way solenoid valve and the second three-way solenoid valve successively, and the first three-way solenoid valve is provided with waste liquid pool interface and the interface that is connected the second three-way solenoid valve, and the second three-way solenoid valve is provided with acid solution interface and distilled water interface.
The reagent that described multi-channel direction selecting valve peripheral interface connects is respectively water sample, blank liquid, damping fluid and bacterium liquid.
Described photoelectric detector contains the processing module that luminous inhibiting rate was processed and calculated to light signal to collecting.
The utility model quantitatively encircles sample introduction by valve combination, by certain sequence of operation, water sample can be made to different dilution ratios, and different dilution ratio water samples are carried out to toxicity detection, directly record the toxicity information of different dilution ratio water samples, luminous inhibiting rate data according to detected water sample under different dilution ratios, comprehensively pass judgment on the toxicity characteristic of water sample.This device draws and connects without using optical fiber, thereby has reduced due to the part light loss of using optical fiber to cause, has improved detection sensitivity.
Accompanying drawing explanation
Fig. 1 is the structural representation of water quality comprehensive toxicity on-line measuring device;
Fig. 2 is the A-A sectional view of Fig. 1.
In figure, I-liquid level detector, L-quantitatively encircle V1-multi-channel direction selecting valve, V2-T-valve, V3-the first three-way solenoid valve, V4-the second three-way solenoid valve, P-peristaltic pump, 11-black aluminium block, 12-outer cover, 12-1-detection window, 13-photoelectric detector, 14-light transmission passage, 15-sample cell, 16-rotating shaft, 17-plug, 18-sample introduction joint, 19-shaft coupling, 20-motor, 21-angular transducer, 22-motor flange, choosing is to pivoted arm-23.
Embodiment
Below in conjunction with accompanying drawing, further illustrate structure and the course of work of the on-line measuring device of the utility model water sample comprehensive toxicity.
As Fig. 1, multi-channel direction selecting valve V1, T-valve V2 and peristaltic pump P, connect into sampling system by pipeline.Wherein, multi-channel direction selecting valve V1 is provided with and is numbered 0 hub-interface and is numbered ten peripheral interfaces that are followed successively by 1 ~ 10; T-valve V2 is provided with numbering and is followed successively by three interfaces of 1 ~ 3.Between the hub-interface 0 of multi-channel direction selecting valve V1 and the interface 2 of T-valve V2, be connected with quantitative ring L, the interface 1 of T-valve V2 is connected with peristaltic pump P.The peripheral interface 2 ~ 5 of multi-channel direction selecting valve respectively with bacterium liquid, water sample, damping fluid, the corresponding connection of each reagent of blank liquid, peripheral interface 6 ~ 10 is connected with sample introduction joint that in detection system, each sample cell is corresponding 18 respectively.Hub-interface 0 can be selected to be connected with any one interface in peripheral interface 1 ~ 10 to pivoted arm 23 by choosing.
See Fig. 1 and Fig. 2, detection system structure comprises rotatable black aluminium block 11, stationary housings 12 and photoelectric detector 13, black aluminium block 11 is provided with the sample cell 15 that five circumference are arranged, each sample cell 15 upper ends are provided with plug 17, lower end is respectively equipped with sample introduction joint 18, and the interface 6 ~ 10 of aforementioned multi-channel direction selecting valve V1 is connected with each joint 18 of sample introduction respectively by pipeline.See Fig. 2, each sample cell 15 of black aluminium block 11 is equipped with a light transmission passage 14 that extends horizontally to outer rim, stationary housings 12 is provided with a detection window 12-1, detection window 12-1 can select to communicate with the corresponding light transmission passage 14 of any one sample cell 15 by rotation black aluminium block 11, by the light signal of this sample cell being sent into photoelectric detector 13, detects.
Transmission component comprises motor 20, shaft coupling 19 and angular transducer 21, and motor 20 is connected with the central rotating shaft 16 of black aluminium block 11 by shaft coupling 19, makes 11 rotations of black aluminium block, by the positioning function of angular transducer 21, controls its anglec of rotation.
The white vitriol solution that the concentration of take is below 8mg/L is testing sample, and blank liquid is the sodium chloride solution that distilled water, damping fluid are 20%, and mensuration process comprises the steps:
(1) sample introduction:
Sample introduction process be take bacterium liquid as example: multi-channel direction selecting valve V1 choosing is gone to interface 2 to pivoted arm 23, T-valve V2 is adjusted to 1-2 and leads to, peristaltic pump P clockwise rotates, bacterium liquid is inhaled into, interface 2 through multi-channel direction selecting valve V1 enters quantitative ring L through hub-interface 0, while liquid level having been detected to device I, illustrate that quantitatively ring L has been full of bacterium liquid, peristaltic pump P stops operating; T-valve V2 is adjusted to 1-3, interface logical, peristaltic pump P rotates counterclockwise, and the unnecessary bacterium liquid being connected between No. 1 position of T-valve and peristaltic pump P is discharged from the interface 3 of T-valve V2; Again multi-channel direction selecting valve V1 is gone to interface 10, T-valve V2 is adjusted to 1-2, interface and leads to, and peristaltic pump rotates counterclockwise, and the liquid that quantitatively encircles L is injected in a sample cell 15, and the bacterium liquid sample introduction of this sample cell completes.
By the selectivity of multi-channel direction selecting valve V1 interface is switched, by above sequence of operation, water sample, damping fluid, bacterium liquid are injected in each corresponding sample cell 15 respectively; Using and quantitatively encircle L as a unit quantity, in each sample cell 15, bacterium liquid only need inject a unit quantity, carries out above-mentioned sample introduction operation once; Damping fluid and water sample need respectively to inject a plurality of unit quantities, i.e. repeated several times sample introduction operation, until reach predetermined sample size.In addition, water sample injects respectively different sample cell 15 by different dilutabilitys, and one of them sample cell injects blank liquid (being distilled water), and all the other four sample cells inject respectively the water sample of different multiples dilution.Required dilutability water sample is injecting under the prerequisite that total degree is constant, according to extension rate, determines and selects the interface 3(of multi-channel direction selecting valve V1 to inject water sample) and interface 5(injection distilled water) injection number of times.Obtaining dilution ratio is the water sample of the whole grouting sockets 3 of 0%(, not the blank water of grouting socket 5), 25%.50%, 75%, the blank water of the whole grouting sockets 5 of 100%() different water samples.
(2) detect bacterial luminescence intensity in each detection cell sample, obtain the intensity signal of corresponding detection cell, specific as follows:
Control module, by angular transducer 21, controlling motor 20 rotates, and drive black aluminium block to rotate, make each sample cell 15 form light-path with the photomultiplier of photoelectric detector 13 successively by light transmission passage 14, obtain the corresponding light intensity value of each sample cell 15, by processing module, the signal collecting is processed again, calculated the luminous inhibiting rate of sample in each detection cell.
(3) after one-time detection finishes, need clean pipeline and each sample cell 15, in order to detecting next time, use.Cleaning process is first the first three-way solenoid valve V3 to be adjusted to interface 2-3 to communicate, the second three-way solenoid valve V4 is adjusted to interface 1-2 and communicates, peristaltic pump P extremely quantitatively encircles L by acid solution by T-valve V2, through multi-channel direction selecting valve V1, input some sample cells 15, subsequently the first three-way solenoid valve V3 being adjusted to interface 1-2 communicates, peristaltic pump P reversion, by the reverse sucking-off of acid solution, from interface 1 effluent discharge of the first three-way solenoid valve V3.Subsequently as above order, distilled water is passed into from the interface 3 of the second three-way solenoid valve V4, to this sample cell 15 rinse, then effluent discharge.Repeat above order, complete the flushing to each sample cell 15.
Claims (4)
1. a water quality comprehensive toxicity on-line measuring device, is characterized in that comprising sampling system, detection system and transmission component;
Described sampling system comprises multi-channel direction selecting valve, T-valve and peristaltic pump, and wherein, multi-channel direction selecting valve comprises a hub-interface and a plurality of peripheral interface, and hub-interface can be selected to communicate with any one peripheral interface to pivoted arm by a choosing; Described hub-interface is connected with quantitative ring, and is connected with peristaltic pump by T-valve; Each peripheral interface of described multi-channel direction selecting valve is corresponding connected respectively with each sample inlet of each reagent and detection components by pipeline;
Described detection system comprises rotatable black aluminium block, stationary housings and photoelectric detector, described black aluminium block is provided with the sample cell that a plurality of circumference are arranged, each sample cell is equipped with a light transmission passage that extends horizontally to black aluminium block outer rim, described stationary housings is provided with a detection window, this detection window is connected with photoelectric detector, and can select to communicate with the light transmission passage of any one sample cell in black aluminium block;
Described transmission component comprises motor, shaft coupling and angular transducer, and motor is connected with the central rotating shaft of black aluminium block by shaft coupling.
2. water quality comprehensive toxicity on-line measuring device according to claim 1, it is characterized in that described peristaltic pump connects the first three-way solenoid valve and the second three-way solenoid valve successively, the first three-way solenoid valve is provided with waste liquid pool interface and the interface that is connected the second three-way solenoid valve, and the second three-way solenoid valve is provided with acid solution interface and distilled water interface.
3. water quality comprehensive toxicity on-line measuring device according to claim 2, is characterized in that the reagent that described multi-channel direction selecting valve peripheral interface connects is respectively water sample, blank liquid, damping fluid and bacterium liquid.
4. according to the water quality comprehensive toxicity on-line measuring device described in claim 1 or 2 or 3, it is characterized in that described photoelectric detector contains the processing module that luminous inhibiting rate was processed and calculated to light signal to collecting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298813.9U CN203894168U (en) | 2014-06-06 | 2014-06-06 | Online water quality comprehensive toxicity detection device |
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|---|---|---|---|
| CN201420298813.9U CN203894168U (en) | 2014-06-06 | 2014-06-06 | Online water quality comprehensive toxicity detection device |
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| CN201420298813.9U Expired - Fee Related CN203894168U (en) | 2014-06-06 | 2014-06-06 | Online water quality comprehensive toxicity detection device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730216A (en) * | 2015-04-16 | 2015-06-24 | 肖巍 | Analyzing and measuring device and liquid analyzing system |
| CN107843703A (en) * | 2017-11-22 | 2018-03-27 | 江苏蓝创智能科技股份有限公司 | The check system and method for calibration of water quality testing meter |
| CN107860614A (en) * | 2017-11-22 | 2018-03-30 | 江苏蓝创智能科技股份有限公司 | The quantitative measuring device of water quality testing meter |
| CN107860717A (en) * | 2017-11-22 | 2018-03-30 | 江苏蓝创智能科技股份有限公司 | Improved water quality testing meter and its application method |
| CN108279230A (en) * | 2018-02-02 | 2018-07-13 | 哈尔滨工业大学 | A kind of micro-fluidic type water quality toxicity analysis and detection device and its determination method |
| CN109521160A (en) * | 2018-12-13 | 2019-03-26 | 宁波市环境监测中心 | Heavy metal quick screening method in a kind of solid waste Leaching |
| CN110967309A (en) * | 2019-12-26 | 2020-04-07 | 苏州奥特福环境科技有限公司 | Online detection system and method for available chlorine in water quality disinfection process |
| CN111174099A (en) * | 2019-12-19 | 2020-05-19 | 江苏国技仪器有限公司 | Multi-range water quality analyzer flow path system and accurate quantification method |
-
2014
- 2014-06-06 CN CN201420298813.9U patent/CN203894168U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730216A (en) * | 2015-04-16 | 2015-06-24 | 肖巍 | Analyzing and measuring device and liquid analyzing system |
| CN104730216B (en) * | 2015-04-16 | 2016-12-07 | 肖巍 | A kind of analysis metering device and liquid analysis system |
| CN107843703A (en) * | 2017-11-22 | 2018-03-27 | 江苏蓝创智能科技股份有限公司 | The check system and method for calibration of water quality testing meter |
| CN107860614A (en) * | 2017-11-22 | 2018-03-30 | 江苏蓝创智能科技股份有限公司 | The quantitative measuring device of water quality testing meter |
| CN107860717A (en) * | 2017-11-22 | 2018-03-30 | 江苏蓝创智能科技股份有限公司 | Improved water quality testing meter and its application method |
| CN107860614B (en) * | 2017-11-22 | 2024-02-23 | 江苏蓝创智能科技股份有限公司 | Quantitative metering device of water quality detector |
| CN107860717B (en) * | 2017-11-22 | 2024-02-23 | 江苏蓝创智能科技股份有限公司 | Improved water quality detector and use method thereof |
| CN107843703B (en) * | 2017-11-22 | 2023-12-05 | 江苏蓝创智能科技股份有限公司 | Verification system and verification method of water quality detector |
| CN108279230B (en) * | 2018-02-02 | 2020-06-09 | 哈尔滨工业大学 | Micro-flow control type water quality toxicity analysis and detection device and detection and analysis method thereof |
| CN108279230A (en) * | 2018-02-02 | 2018-07-13 | 哈尔滨工业大学 | A kind of micro-fluidic type water quality toxicity analysis and detection device and its determination method |
| CN109521160A (en) * | 2018-12-13 | 2019-03-26 | 宁波市环境监测中心 | Heavy metal quick screening method in a kind of solid waste Leaching |
| CN111174099A (en) * | 2019-12-19 | 2020-05-19 | 江苏国技仪器有限公司 | Multi-range water quality analyzer flow path system and accurate quantification method |
| CN110967309A (en) * | 2019-12-26 | 2020-04-07 | 苏州奥特福环境科技有限公司 | Online detection system and method for available chlorine in water quality disinfection process |
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Granted publication date: 20141022 Termination date: 20190606 |