CN203443808U - Optical quantitative sampling system for online water-quality monitor - Google Patents
Optical quantitative sampling system for online water-quality monitor Download PDFInfo
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- CN203443808U CN203443808U CN201320509610.5U CN201320509610U CN203443808U CN 203443808 U CN203443808 U CN 203443808U CN 201320509610 U CN201320509610 U CN 201320509610U CN 203443808 U CN203443808 U CN 203443808U
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- photoelectric sensor
- briquetting
- peristaltic pump
- optics
- quantity tube
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Abstract
An embodiment of the utility model discloses an optical quantitative sampling system for an online water-quality monitor. The system comprises a control unit, a stepping motor, a peristaltic pump, a photoelectric batcher and an injection valve terminal, wherein the peristaltic pump is installed on the stepping motor and driven by the stepping motor to rotate under the control of the control unit; the photoelectric batcher comprises an optical quantitative tube, a pressing block, a photoelectric sensor and supports; and the photoelectric sensor comprises a switching circuit and an in-phase amplifying circuit and is used for amplifying and outputting a received optical signal. The system can be used for processing the light intensity obtained on a concave liquid level through the photoelectric sensor, so that the signal reflects the actual situation of the concave liquid level accurately, and accurate and quantitative sampling can be realized.
Description
Technical field
The utility model relates to water quality monitoring field, particularly relates to a kind of optics quantitative sampling system for water quality on-line monitoring instrument.
Background technology
Along with the development of human society, the phenomenon that water pollutes is more and more serious, and people more pay attention to the monitoring of water quality thereupon.So-called water quality monitoring is monitor and measure the kind of pollutant in water body, the concentration of various pollutants and variation tendency, the process of evaluating water quality situation.
To carry out monitoring analysis to water quality, first just need to carry out quantitative sampling to testing liquid, so quantitative sampling system has vital effect in water quality monitoring system.Can there is following technical matters in traditional quantitative sampling system: due to the variation that can launch, reflect during at concave meniscus at light, cause the light intensity error that transfers out larger, thereby cannot carry out accurately concave meniscus, and then cause optics quantitative sampling system cannot realize the function of quantitative sampling.
Based on above-mentioned technical matters, the current precision in the urgent need to providing a kind of novel quantitative sampling system to increase water quality monitor measurement data, thus provide strong support for next step water treatment work.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of quantitative sampling system for water quality on-line detecting system, accurately quantitative and sampling.The utility model embodiment discloses following technical scheme: a kind of optics quantitative sampling system for water quality on-line monitoring instrument, comprising:
Controller, stepper motor, peristaltic pump, photoelectricity batcher and sampling valve island;
Described peristaltic pump is arranged on described stepper motor, under the control of described controller, by described stepper motor, drives peristaltic pump to rotate;
Described photoelectricity batcher comprises: optics quantity tube, briquetting, photoelectric sensor and support;
Described photoelectric sensor comprises: change-over circuit and in-phase amplification circuit, for the light signal receiving is converted to electric signal and amplifies processing;
The lower end of described optics quantity tube is placed in the duct on described top, sampling valve island;
Described optics quantity tube is fixed on the centre of described support;
The aperture, left side of described support connects respectively two groups of emission coefficients of photoelectric sensor, and the aperture on right side connects respectively two groups of receiving systems of photoelectric sensor;
Described briquetting is fixed on the upper end of described support, and the upper end of briquetting connects mixing valve, and the lower end of briquetting connects the top of optics quantity tube, and the duct in the left side of briquetting is managed with described peristaltic pump and is connected by PETT.
Preferably, described sampling valve island adopts one group of T-valve to assemble side by side.
Preferably, the resistance in described photoelectric sensor adopts silicon photocell.
Preferably, described controller adopts 32 fixed point high speed numerical processors, and its frequency of operation is 100M.
Preferably, described change-over circuit is I-V change-over circuit, for changing the light signal strength detecting into electric current, then changes current signal into voltage signal.
Preferably, described in-phase amplification circuit comprises in-phase amplifier and resistance, for the voltage signal of change-over circuit output is amplified.
As can be seen from the above-described embodiment, a kind of optics quantitative sampling system for water quality on-line monitoring instrument that the utility model provides, simple in structure, by photoelectric sensor is carried out to the electric signal that calculation process changes quantification into the light signal obtaining, thereby can determine accurately the position of concave meniscus, and then guaranteeing the accurate location to liquid level, this optics quantitative sampling system architecture is simple, easy to operate, sampling is accurate, can be widely used in other water quality on-line monitoring instrument devices.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural drawing of a kind of optics quantitative sampling system for water quality on-line monitoring instrument of the embodiment of the present application one announcement;
Fig. 2 is the structural drawing of a kind of optics quantitative sampling system for water quality on-line monitoring instrument of the embodiment of the present application two announcements.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the utility model embodiment is described in detail.
Embodiment mono-
Refer to Fig. 1, it is the structural drawing of a kind of optics quantitative sampling system for water quality on-line monitoring instrument of the embodiment of the present application one announcement, and this system comprises:
Controller, stepper motor, peristaltic pump, photoelectricity batcher and sampling valve island;
Described peristaltic pump is arranged on described stepper motor, under the control of described controller, by described stepper motor, drives peristaltic pump to rotate;
Described photoelectricity batcher comprises: optics quantity tube, briquetting, photoelectric sensor and support;
Described photoelectric sensor comprises: change-over circuit and in-phase amplification circuit, for the light signal receiving is converted to electric signal and amplifies processing;
The lower end of described optics quantity tube is placed in the duct on described top, sampling valve island;
Described optics quantity tube is fixed on the centre of described support;
The aperture, left side of described support connects respectively two groups of emission coefficients of photoelectric sensor, and the aperture on right side connects respectively two groups of receiving systems of photoelectric sensor;
Described briquetting is fixed on the upper end of described support, and the upper end of briquetting connects mixing valve, and the lower end of briquetting connects the top of optics quantity tube, and the duct in the left side of briquetting is managed with described peristaltic pump and is connected by PETT.
In described change-over circuit and the in-phase amplification circuit receiving system in photoelectric sensor.
Preferably, described sampling valve island adopts one group of T-valve to assemble side by side.
Preferably, the resistance in described photoelectric sensor adopts silicon photocell.
Preferably, described controller adopts 32 fixed point high speed numerical processors, and its frequency of operation is 100M.
Preferably, described change-over circuit is I-V change-over circuit, for changing the light signal strength detecting into electric current, then changes current signal into voltage signal.
Preferably, described in-phase amplification circuit comprises in-phase amplifier and resistance, for the voltage signal of change-over circuit output is amplified.
As can be seen from the above-described embodiment, a kind of optics quantitative sampling system for water quality on-line monitoring instrument that the utility model provides, simple in structure, by photoelectric sensor is carried out to the electric signal that calculation process changes quantification into the light signal obtaining, thereby can determine accurately the position of concave meniscus, and then guaranteeing the accurate location to liquid level, this optics quantitative sampling system architecture is simple, easy to operate, sampling is accurate, can be widely used in other water quality on-line monitoring instrument devices.
Embodiment bis-
For more detailed more specific description scheme of the present utility model, the embodiment bis-of take below explains as example, specifically refer to Fig. 2, it is the structural drawing of a kind of optics quantitative sampling system for water quality on-line monitoring instrument of the embodiment of the present application two announcements, and this system comprises: controller, stepper motor, peristaltic pump, photoelectricity batcher and sampling valve island; Modules is as shown in the figure respectively:
Wherein: emission coefficient 1, emission coefficient 3, receiving system 8, receiving system 9 is two groups of emission coefficients and two groups of receiving systems of photoelectric sensor.
Wherein: described photoelectricity batcher comprises: optics quantity tube 2, briquetting 7, support 11 and photoelectric sensor.The lower end of optics quantity tube 2 is placed in the duct on described 10 tops, sampling valve island, then with support, optics quantity tube is fixed on to the centre of support 11; The aperture, left side of support 11 connects respectively two groups of emission coefficients 1,3 of photoelectric sensor, the aperture on right side connects respectively two groups of receiving systems 8,9 of photoelectric sensor, 8 quantitative reference liquid levels for the emission coefficient 1 of its middle and upper part and receiving system, the emission coefficient 3 of bottom and receiving system 9 are used for quantitative low liquid level; The upper end of the receiving system support 11 of photoelectric sensor is fixed with briquetting 7, and the lower end in the duct of briquetting 7 centers connects the top of optics quantity tube 2, and briquetting 7 upper ends are managed 4 by PTEE and connected mixing valve; The duct in the left side of briquetting 7 is managed 4 by PTEE and is connected with peristaltic pump 6.
Wherein: described controller is used for controlling described stepper motor and drives peristaltic pump to rotate;
Because different testing liquids all will sample by same solenoid valve, tend to like this cause the cross-infection between different liquids, will inevitably affect the testing result of water quality.Therefore,, for fear of cross-infection, preferred, described sampling valve island adopts one group of T-valve to assemble side by side.
In actual sampling process in different liquid Jiang Youfa island with it corresponding solenoid control its flow to, the cross-infection of having avoided different liquids to cause through same solenoid valve and pipeline, thus greatly reduce the error of quantitative sampling.
Because silicon photocell is a kind of semiconductor devices that can be directly electric energy transform light energy, it simple in structure, core is a large area PN junction, when the tube core of diode is subject to illumination, will generation current, namely photovoltaic effect.
Preferably, the resistance in described photoelectric sensor adopts silicon photocell.
Preferably, described controller adopts 32 fixed point high speed numerical processors, and its frequency of operation is 100M.
Preferably, described change-over circuit is I-V change-over circuit, for changing the light signal strength detecting into electric current, then changes current signal into voltage signal.
Preferably, described in-phase amplification circuit comprises in-phase amplifier and resistance, for the voltage signal of change-over circuit output is amplified.
As can be seen from the above-described embodiment, a kind of optics quantitative sampling system for water quality on-line monitoring instrument that the utility model provides, by stepper motor, driving peristaltic pump to rotate the air extracting in pipeline forms negative pressure, liquid is entered in optics quantity tube by pipeline; The strength signal that photoelectric sensor irradiates the light source of emission coefficient after concave meniscus receives by receiving system and quantizes, and changes the electric signal of quantification through calculation process into, thereby determines the position of concave meniscus, thereby guarantees the accurate location to liquid level.
In addition, adopt one group of T-valve by module assembled to form sampling valve island, in different liquid You Fa islands, solenoid valve is correspondingly controlled it and is flowed to, and has avoided different liquids to cause cross pollution through same solenoid valve and pipeline, thereby has greatly reduced the error of quantitative sampling.This quantitative sampling system architecture is simple, easy and simple to handle, sampling is accurate, can be widely used in other water quality on-line monitoring instrument devices.
The foregoing is only preferred implementation of the present utility model, do not form the restriction to the utility model protection domain.Any any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present utility model.
Claims (6)
1. for an optics quantitative sampling system for water quality on-line monitoring instrument, it is characterized in that, comprising:
Controller, stepper motor, peristaltic pump, photoelectricity batcher and sampling valve island;
Described peristaltic pump is arranged on described stepper motor, under the control of described controller, by described stepper motor, drives peristaltic pump to rotate;
Described photoelectricity batcher comprises: optics quantity tube, briquetting, photoelectric sensor and support;
Described photoelectric sensor comprises: change-over circuit and in-phase amplification circuit, for the light signal receiving is converted to electric signal and amplifies processing;
The lower end of described optics quantity tube is placed in the duct on described top, sampling valve island;
Described optics quantity tube is fixed on the centre of described support;
The aperture, left side of described support connects respectively two groups of emission coefficients of photoelectric sensor, and the aperture on right side connects respectively two groups of receiving systems of photoelectric sensor;
Described briquetting is fixed on the upper end of described support, and the upper end of briquetting connects mixing valve, and the lower end of briquetting connects the top of optics quantity tube, and the duct in the left side of briquetting is managed with described peristaltic pump and is connected by PETT.
2. system according to claim 1, is characterized in that, described sampling valve island adopts one group of T-valve to assemble side by side.
3. system according to claim 1, is characterized in that, the resistance in described photoelectric sensor adopts silicon photocell.
4. system according to claim 1, is characterized in that, described controller adopts 32 fixed point high speed numerical processors, and its frequency of operation is 100M.
5. system according to claim 1, is characterized in that, described change-over circuit is I-V change-over circuit, for changing the light signal strength detecting into electric current, then changes current signal into voltage signal.
6. system according to claim 1, is characterized in that, described in-phase amplification circuit comprises in-phase amplifier and resistance, for the voltage signal of change-over circuit output is amplified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509610.5U CN203443808U (en) | 2013-08-20 | 2013-08-20 | Optical quantitative sampling system for online water-quality monitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509610.5U CN203443808U (en) | 2013-08-20 | 2013-08-20 | Optical quantitative sampling system for online water-quality monitor |
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| CN203443808U true CN203443808U (en) | 2014-02-19 |
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| CN201320509610.5U Expired - Lifetime CN203443808U (en) | 2013-08-20 | 2013-08-20 | Optical quantitative sampling system for online water-quality monitor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330125A (en) * | 2014-11-02 | 2015-02-04 | 山西鑫华翔科技发展有限公司 | Variable-range optical quantification device |
| CN105092308A (en) * | 2015-08-18 | 2015-11-25 | 北京雪迪龙科技股份有限公司 | Quantitative sampling device |
| CN106370472A (en) * | 2016-10-13 | 2017-02-01 | 浙江天行健水务有限公司 | Quantifying device used in water quality effective chlorine online detection equipment |
| CN108007526A (en) * | 2016-11-02 | 2018-05-08 | 郑州富铭环保科技有限公司 | One kind is based on double light path pipeline liquid level detection device |
| CN108226076A (en) * | 2017-12-30 | 2018-06-29 | 北方工业大学 | Miniature trace water quality on-line monitoring appearance |
| CN110006699A (en) * | 2019-03-20 | 2019-07-12 | 苏州聚阳环保科技股份有限公司 | Water quality on-line analysis high-precision quantitative device and quantitative approach |
| CN111077097A (en) * | 2020-01-13 | 2020-04-28 | 深圳市正奇环境科技有限公司 | Reaction tank device of integrated detection unit |
-
2013
- 2013-08-20 CN CN201320509610.5U patent/CN203443808U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330125A (en) * | 2014-11-02 | 2015-02-04 | 山西鑫华翔科技发展有限公司 | Variable-range optical quantification device |
| CN104330125B (en) * | 2014-11-02 | 2019-03-29 | 山西鑫华翔科技发展有限公司 | A kind of changeable fluid optical quantitation device |
| CN105092308A (en) * | 2015-08-18 | 2015-11-25 | 北京雪迪龙科技股份有限公司 | Quantitative sampling device |
| CN105092308B (en) * | 2015-08-18 | 2018-08-14 | 北京雪迪龙科技股份有限公司 | A kind of quantitative sampling device |
| CN106370472A (en) * | 2016-10-13 | 2017-02-01 | 浙江天行健水务有限公司 | Quantifying device used in water quality effective chlorine online detection equipment |
| CN108007526A (en) * | 2016-11-02 | 2018-05-08 | 郑州富铭环保科技有限公司 | One kind is based on double light path pipeline liquid level detection device |
| CN108226076A (en) * | 2017-12-30 | 2018-06-29 | 北方工业大学 | Miniature trace water quality on-line monitoring appearance |
| CN110006699A (en) * | 2019-03-20 | 2019-07-12 | 苏州聚阳环保科技股份有限公司 | Water quality on-line analysis high-precision quantitative device and quantitative approach |
| CN111077097A (en) * | 2020-01-13 | 2020-04-28 | 深圳市正奇环境科技有限公司 | Reaction tank device of integrated detection unit |
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20140219 |