CN102252989A - Throwing-into type ultraviolet absorption on-line analyzer - Google Patents
Throwing-into type ultraviolet absorption on-line analyzer Download PDFInfo
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- CN102252989A CN102252989A CN2011101066178A CN201110106617A CN102252989A CN 102252989 A CN102252989 A CN 102252989A CN 2011101066178 A CN2011101066178 A CN 2011101066178A CN 201110106617 A CN201110106617 A CN 201110106617A CN 102252989 A CN102252989 A CN 102252989A
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Abstract
A throwing-into type ultraviolet absorption on-line analyzer belongs to the technical field of water quality detection apparatus equipment, is used for in-situ detection of water quality in water; the technical scheme comprises: the analyzer comprises an housing body, a measuring pool, a power supply, a measuring unit, a reference unit, a control unit; the measuring pool is mounted inside the housing body; the power supply is mounted at one side of the measuring pool in the housing body; the measuring unit, the reference unit, the control unit are mounted at the other side of the measuring pool in the housing body; light through holes passing through the measuring pool are disposed along an axial direction of the measuring pool; a water inlet is disposed at the central part of the measuring pool; lenses are respectively mounted in light through hole cavities which are located at two sides of the water inlet of the measuring pool and face each other; the axis of the lenses, the optical axis of the power supply, and the optical axis of the measuring unit are on the same straight line; the measuring unit is arranged to have a 10 DEG-30 DEG angle with the reference unit; signal output ends of the measuring unit and the reference unit are connected to the control unit. According to the invention, the analyzer can be directly thrown into the water to be detected for monitoring, and the measurement is convenient and rapid, does not require sampling, and saves cost.
Description
Technical field
The present invention relates to the online analytical instrument that organism detects in a kind of throw-in type uv absorption water, belong to water quality detection instrument equipment technical field.
Background technology
Organism is one of index that needs in the water quality standard emphasis control.Therefore, the on-line monitoring of the concentration of organic contaminant such as chemical oxygen demand (COD) (COD), total organic carbon (TOC), biochemical oxygen demand (BOD), uv absorption (UVA) and dissolved organic carbon indexs such as (DOC) is a crucial research topic, has obtained very big attention and development in recent years.
Ultraviolet absorptivity (UVA) has come out for many years as the overall target of an organic contamination, and it mainly is to come the organic water quality parameter COD of indirect calculation, TOC etc. by the ultraviolet light absorption degrees of data of measuring water sample.As a physical optics index, ultraviolet absorptivity basically without chemical reagent, does not have chemical reaction in the mensuration process, non-secondary pollution, and chlorion is noiseless to analyzing, response speed fast, the instrument failure rate is low, be easy to accomplish on-line monitoring.China's State Bureau of Environmental Protection has been formulated HJ/T 191-2005 " ultraviolet (UV) absorbs the technical requirement of water quality automatic on-line monitoring instrument ", stipulated that the ultraviolet (UV) in surface water, underground water and the sewage absorbs the technical requirement and the performance test methods of water quality automatic on-line monitoring instrument, made such instrument development production and service check that unified standard arranged.
Ultraviolet in the market (UV) analyser generally is cabinet type design, environmental baseline is had relatively high expectations, when water quality detection, to gather water body, need to install the water sampling device, improved the cost of water quality measurement, and the scene of can not applying in a flexible way, therefore also be subjected to certain restriction in the use.In addition, instrument list wavelength detects and generally does light source by low pressure mercury lamp, and multi-wavelength detects general common xenon lamp, deuterium lamp and the tungsten lamp etc. of adopting, and power consumption is big, and the serviceable life of lamp is short.
Summary of the invention
Technical matters to be solved by this invention provides a kind of instrument directly can the input in the water water quality is carried out in situ detection, need not to take a sample or the throw-in type uv absorption in-line analyzer of additional equipment.
The technical scheme that solves the problems of the technologies described above is:
A kind of throw-in type uv absorption in-line analyzer, it is by shell body, measuring cell, power supply, measuring unit, reference cell, control module is formed, measuring cell is installed in the shell body, the end of shell body is connected with the deep water connector, be equipped with cable in the deep water connector, power supply is installed in a side of measuring cell in the shell body, measuring unit, reference cell, control module is installed in the opposite side of measuring cell in the shell body, the light hole that runs through measuring cell is arranged along the measuring cell axis direction, there is the inlet opening with the shell body external communications at the measuring cell middle part, in the relative light hole cavity in both sides, measuring cell inlet opening, be separately installed with lens, lens axis and power supply optical axis, the measuring unit optical axis point-blank, measuring unit and reference cell are the 10o-30o angle and arrange measuring unit, the signal output part of reference cell is connected with control module.
Above-mentioned throw-in type uv absorption in-line analyzer, the described lens that are installed in the measuring cell of power supply one side are connected with removable light path plug-in unit.
Above-mentioned throw-in type uv absorption in-line analyzer, described measuring unit is formed by measuring optical filter, measuring photodetector and measurement peak detection circuit, measuring optical filter, measuring photodetector and measurement peak detection circuit installs from top to bottom successively, described reference cell is made up of reference optical filter, reference photoelectric detector and reference peak detection circuit, reference optical filter, reference photoelectric detector and reference peak detection circuit are installed from top to bottom successively, and the reference optical filter is the 10o-30o angle with the measurement optical filter and places installation.
Above-mentioned throw-in type uv absorption in-line analyzer, described power supply is made up of high-voltage pulse power source and pulse xenon lamp.
Above-mentioned throw-in type uv absorption in-line analyzer, the measuring cell outside is equipped with the cleaning support, clean support and connect curved pass joint, curved pass joint is connected with the conduit of cleaning control device, cleaning control device inside is equipped with mini air compressor, pressure controller, gas-holder, solenoid valve successively, is linked to each other by tracheae between them, and tensimeter is equipped with on gas-holder top, the conduit of being drawn by solenoid valve is connected control module and cleaning control device control linkage with curved pass joint on cleaning support.
Above-mentioned throw-in type uv absorption in-line analyzer, there is the double-layer seal circle junction between described shell body and the measuring cell.
Above-mentioned throw-in type uv absorption in-line analyzer, described measuring photodetector and reference photoelectric detector adopt silicon photocell.
Above-mentioned throw-in type uv absorption in-line analyzer, described control module comprises microprocessor and stabilized voltage supply, microprocessor comprises I/O control module, AD converting unit and RS485 communication unit.
Usefulness of the present invention is:
The present invention adopts the integral sealing waterproof construction, this instrument directly can be dropped in the tested water body and monitor, and makes measurement convenient fast, need not sampling, saves cost; Detect the organism that adopts in the dual wavelength uv absorption water, need not reagent, avoided secondary pollution; Can select suitable light path according to the tested water body organic concentration during detection.In addition, cleaning device adopts pressurized air regularly lens to be cleaned automatically by the curved pass joint that cleans on the support, has reduced the instrument maintenance amount.
Description of drawings
Fig. 1 structural representation of the present invention;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the measuring unit structural representation;
Fig. 4 is the reference cell structural representation;
Fig. 5 is a light path dongle configuration synoptic diagram;
Fig. 6 cleans the supporting structure synoptic diagram;
Fig. 7 is a cleaning control apparatus structure block diagram;
Fig. 8 is the control module structured flowchart.
Mark is as follows among the figure: deep water connector 1, suspension ring 2, high-voltage pulse power source 3, pulse xenon lamp 4, light path plug-in unit 5, lens 6, lens 7, reference peak detection circuit 8, reference photoelectric detector 9, reference optical filter 10, measurement optical filter 11, measuring photodetector 12, measurement peak detection circuit 13, control module 14, shell body 15, curved pass joint 16, cleaning support 17, O-ring seal 18, set nut 19, sealing gasket 20, nut shim 21, cleaning head 22.
Embodiment
The invention provides the in-line analyzer that a kind of throw-in type detects water body organism, the embodiment instrument that shows among the figure is whole to be the right cylinder of φ 70mm, H550mm, also can adopt other profile, as rectangular parallelepiped etc.Tool housing body 15 adopts the water-tight corrosion-proof materials, can be stainless steel or other nonmetallic materials, and as high-strength engineering plastic etc., water-tight is carried out by the double-layer seal circle in the junction.The end of shell body 15 is connected with deep water connector 1, has cable to connect surveying instrument and outside plant in the deep water connector 1.The end of shell body 15 connects suspension ring 2 in addition.
Show among the figure that about 2/3 locate the measuring cell that is open apart from the instrument top, the inlet opening with the shell body external communications is arranged in the middle of the measuring cell, the inlet opening is divided into two parts up and down with measuring cell.The light hole that runs through measuring cell is arranged along the measuring cell axis direction, the light path plug-in unit 5 that has thick 2.5mm left and right sides lens 6 is installed in the light hole on measuring cell top, and seal by O-ring seal, the lens 7 of 2.5mm directly are installed in the light hole of measuring cell bottom, corresponding with the lens 6 on the light path plug-in unit 5.Set nut 19 is arranged in the light path plug-in unit 5, sealing gasket 20 and φ 12mm, the thick 2.5mm of being about lens 6 are fixed on the light path plug-in unit 5; Light path plug-in unit 5 can be divided into different light paths, reasonably selects according to the tested water body organic concentration during practical application.
Show among the figure that power supply is installed in a side of measuring cell in the shell body, measuring unit, reference cell, control module are installed in the opposite side of measuring cell in the shell body.Power supply is made up of high-voltage pulse power source 3 and pulse xenon lamp 4, produces light source by characteristic frequency gating pulse xenon lamp 4, and lens axis and light source axis, measuring unit optical axis are point-blank.Measuring unit and reference cell, and being 10o-30o arranges, measuring unit is equipped with from top to bottom successively to be measured optical filter 11, measuring photodetector 12 and measures peak detection circuit 13, and reference cell is installed reference optical filter 8, reference photoelectric detector 9 and reference peak detection circuit 10 from top to bottom successively.Control module 14 is connected by lead with measuring unit, reference cell, and control module 14 has microprocessor unit and stabilized voltage supply, and they are arranged in parallel.
Show among the figure, install around the measuring cell by two semi-circular cleaning supports 17 that are connected and fixed, the curved pass joint 16 that cleans support 17 outsides is connected with the conduit of automatic cleaning control device. and clean support 17 and can be stainless steel, thickness is about 6-7mm, is fastened on the measuring cell outside by two semi-circular stainless steel screws by some.Clean support 17 inboards and be connected with cleaning head 22, corresponding with cleaning head 22 is curved pass joint 16, and it is fixing to bend pass joint 16 by nut shim 21.
The cleaning control device is that pressurized air cleans automatically, starts the cleaning control device before the each measurement of instrument the lens on the measuring cell are cleaned automatically.Cleaning control device inside is equipped with mini air compressor, pressure controller, gas-holder, solenoid valve successively, is linked to each other by tracheae between them, and tensimeter is equipped with on gas-holder top.The conduit of being drawn by solenoid valve is connected with curved pass joint 16 on cleaning support 17.The whole cleaning process of control module 14 controls.
Show among the figure, control module 14 comprises microprocessor and stabilized voltage supply, microprocessor comprises I/O control module, AD converting unit and RS485 communication unit, stabilized voltage supply provides required voltage to the electronic unit of instrument each several part during work, microprocessor will be measured, the peak value of reference light paths is converted to digital signal, calculate the organic concentration value again.
The course of work of the present invention is as follows:
At first select the suitable light path plug-in unit 5 that has lens according to monitoring water quality organic concentration.With the cleaning control device lens is cleaned automatically before the test.High-voltage pulse power source 3 produces certain operating voltage and supplies with pulse xenon lamp 4, by the trigger pulse that the microprocessor of control module 14 inside is exported, comes the frequency of operation of gating pulse xenon lamp 4 flickers.The light that light source sends is after lens 6 pass through measuring cell, respectively by the measurement optical filter 11 of 254nm and the reference optical filter 10 of 550nm, after arrival measuring photodetector 12 and reference photoelectric detector 9 carry out opto-electronic conversion, respectively by measuring peak detection circuit 13, faint optical signal after 8 conversions of reference peak detection circuit carries out peak value and keeps, the peak value of light path will be measured, the peak transmission of reference light paths is converted to digital signal for the A/D converting unit on the microprocessor of control module 14 inside, calculate the organic concentration value again, give host computer by serial communication interface.The stabilized voltage supply of control module 14 inside provides required voltage to the electronic unit of instrument each several part.
Claims (8)
1. throw-in type uv absorption in-line analyzer, it is characterized in that: it is by shell body (15), measuring cell, power supply, measuring unit, reference cell, control module (14) is formed, measuring cell is installed in the shell body (15), the end of shell body (15) is connected with deep water connector (1), the deep water connector is equipped with cable in (1), power supply is installed in a side of the interior measuring cell of shell body (15), measuring unit, reference cell, control module (14) is installed in the opposite side of the interior measuring cell of shell body (15), the light hole that runs through measuring cell is arranged along the measuring cell axis direction, there is the inlet opening with shell body (15) external communications at the measuring cell middle part, in the relative light hole cavity in both sides, measuring cell inlet opening, be separately installed with lens (6) and lens (7), the axis of two lens and power supply optical axis, the measuring unit optical axis point-blank, measuring unit and reference cell are the 10o-30o angle and arrange measuring unit, the signal output part of reference cell is connected with control module (14).
2. throw-in type uv absorption in-line analyzer according to claim 1 is characterized in that: the described lens (6) that are installed in the measuring cell of power supply one side are connected with removable light path plug-in unit (5).
3. throw-in type uv absorption in-line analyzer according to claim 2, it is characterized in that: described measuring unit is by measuring optical filter (11), measuring photodetector (12) and measurement peak detection circuit (13) are formed, measure optical filter (11), measuring photodetector (12) and measurement peak detection circuit (13) are installed from top to bottom successively, described reference cell is by reference optical filter (10), reference photoelectric detector (9) and reference peak detection circuit (8) are formed, reference optical filter (10), reference photoelectric detector (9) and reference peak detection circuit (10) are installed from top to bottom successively, and reference optical filter (10) is the 10o-30o angle with measurement optical filter (11) and places installation.
4. throw-in type uv absorption in-line analyzer according to claim 3 is characterized in that: described power supply is made up of high-voltage pulse power source (3) and pulse xenon lamp (4).
5. throw-in type uv absorption in-line analyzer according to claim 4, it is characterized in that: the measuring cell outside is equipped with cleans support (17), clean support (17) and connect curved pass joint (16), curved pass joint (16) is connected with the conduit of cleaning control device, cleaning control device inside is equipped with mini air compressor successively, pressure controller, gas-holder, solenoid valve, link to each other by tracheae between them, tensimeter is equipped with on gas-holder top, the conduit of being drawn by solenoid valve is connected control module (14) and cleaning control device control linkage with curved pass joint (16) on cleaning support (17).
6. throw-in type uv absorption in-line analyzer according to claim 5 is characterized in that: there is the double-layer seal circle junction between described shell body (15) and the measuring cell.
7. throw-in type uv absorption in-line analyzer according to claim 6 is characterized in that: described measuring photodetector (12) and reference photoelectric detector (9) adopt silicon photocell.
8. throw-in type uv absorption in-line analyzer according to claim 7 is characterized in that: described control module (14) comprises microprocessor and stabilized voltage supply, and microprocessor comprises I/O control module, AD converting unit and RS485 communication unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011101066178A CN102252989A (en) | 2011-04-27 | 2011-04-27 | Throwing-into type ultraviolet absorption on-line analyzer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101066178A CN102252989A (en) | 2011-04-27 | 2011-04-27 | Throwing-into type ultraviolet absorption on-line analyzer |
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| CN2011101066178A Pending CN102252989A (en) | 2011-04-27 | 2011-04-27 | Throwing-into type ultraviolet absorption on-line analyzer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226280A (en) * | 2016-08-25 | 2016-12-14 | 江苏美淼环保科技有限公司 | In a kind of water, oil on-line monitoring is popped one's head in and uses online oil monitoring device in the water of this probe |
| CN109191819A (en) * | 2018-09-28 | 2019-01-11 | 东南大学 | A kind of multiple spot Monitoring And Analysis of The Quality system and method for monitoring and analyzing based on clustering algorithm |
| CN110320240A (en) * | 2018-03-28 | 2019-10-11 | 三星电子株式会社 | Water detection circuit and electronic device including it |
| CN110895242A (en) * | 2019-10-24 | 2020-03-20 | 江苏禹治流域管理技术研究院有限公司 | Multi-parameter water quality online monitoring device based on deep ultraviolet photoelectric detector and use method thereof |
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| CN2859515Y (en) * | 2005-06-01 | 2007-01-17 | 浙江大学 | Ultraviolet multi-spectrum on-line water quality COD rapid survey instrument |
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| CN201408166Y (en) * | 2009-05-21 | 2010-02-17 | 上海海争电子科技有限公司 | Submerged rapid water quality analyzer |
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2011
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Patent Citations (4)
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| CN2222350Y (en) * | 1994-05-03 | 1996-03-13 | 康保华 | Water quality on-line automatic tester |
| CN2859515Y (en) * | 2005-06-01 | 2007-01-17 | 浙江大学 | Ultraviolet multi-spectrum on-line water quality COD rapid survey instrument |
| CN101183071A (en) * | 2007-12-14 | 2008-05-21 | 天津大学 | Novel water quality analysis meter |
| CN201408166Y (en) * | 2009-05-21 | 2010-02-17 | 上海海争电子科技有限公司 | Submerged rapid water quality analyzer |
Non-Patent Citations (1)
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| 傅潇然: "一种新型在线紫外水质分析仪的研制", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226280A (en) * | 2016-08-25 | 2016-12-14 | 江苏美淼环保科技有限公司 | In a kind of water, oil on-line monitoring is popped one's head in and uses online oil monitoring device in the water of this probe |
| CN110320240A (en) * | 2018-03-28 | 2019-10-11 | 三星电子株式会社 | Water detection circuit and electronic device including it |
| CN110320240B (en) * | 2018-03-28 | 2024-05-07 | 三星电子株式会社 | Water detection circuit and electronic device comprising same |
| CN109191819A (en) * | 2018-09-28 | 2019-01-11 | 东南大学 | A kind of multiple spot Monitoring And Analysis of The Quality system and method for monitoring and analyzing based on clustering algorithm |
| CN109191819B (en) * | 2018-09-28 | 2020-02-18 | 东南大学 | Multi-point water quality monitoring and analyzing system and method based on clustering algorithm |
| CN110895242A (en) * | 2019-10-24 | 2020-03-20 | 江苏禹治流域管理技术研究院有限公司 | Multi-parameter water quality online monitoring device based on deep ultraviolet photoelectric detector and use method thereof |
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Application publication date: 20111123 |