CN203365381U - Online analyzer for heavy metal in water - Google Patents
Online analyzer for heavy metal in water Download PDFInfo
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- CN203365381U CN203365381U CN 201320204117 CN201320204117U CN203365381U CN 203365381 U CN203365381 U CN 203365381U CN 201320204117 CN201320204117 CN 201320204117 CN 201320204117 U CN201320204117 U CN 201320204117U CN 203365381 U CN203365381 U CN 203365381U
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Abstract
The utility model discloses an online analyzer for heavy metal in water. The online analyzer comprises an industrial integrated control unit, detecting units, an automatic sampling unit, a water sample pretreatment unit and an external input/output unit. According to the provided online analyzer for the heavy metal in the water, the industrial integrated control unit can be used for automatically controlling the detecting units, the automatic sampling unit, the water sample pretreatment unit and the external input/output unit through communication interfaces. The online analyzer adopts modularized thought and can conveniently increase or reduce the number and the variety of the units; meanwhile, components in the units are mutually independent, similarly, the components can be conveniently increased or reduced, the total cost can be reduced by adopting a low-cost standard network cabinet, and data can be processed more conveniently.
Description
Technical field
The present invention relates to the water analysis field, specifically, relate to a kind of online water quality heavy metal analyser.
Background technology
The mensuration of Heavy Metals in Waters element ion is an important content of water analysis, and Heavy Metal Pollution in Water Environment is monitored technology used and mainly contained the methods such as electrochemical analysis, atomic absorption spectroscopy, inductively coupled plasma-atomic emission spectrum, inductively coupled plasma mass spectrometry analyser technology and biological monitoring at present.Existing luminosity colorimetric detection method use cost is high, detection sensitivity and precision low (ppm), reagent complicated component, easily produce secondary pollution, disturbed by other compositions large, and separate unit analyser measurement element is limited, if detect more element user, can only buy many analysers; And atomic absorption method class and ICP quasi-instrument costliness, operation complexity is high, and use cost is high, is not suitable for for on-the-spot on-line monitoring.
Anodic stripping voltammetry (ASV) is at first invented in 19th century the '20s, and won Nobel chemistry Prize in nineteen fifty-nine for its inventor Jaroslav Heyrovsky, can be used for a kind of electrochemical analysis method that multiple metallic element carries out qualitative and quantitative analysis simultaneously.In its redox reaction process, record it and sweep the spectrum electric current, specific element can peak value occur in specific potential, and peak value size or peak area size directly reflect the ion concentration of this element, can the qualitative and quantitative analysis concentration of heavy metal ion based on this.The method has that measuring speed is fast, and detection limit is low, and measuring accuracy is better than the ppb level, and the few cost of reagent consumption is low, and can measure the characteristics such as various metals simultaneously.
Have in the market some water quality heavy metal analysers, but still exist, integrated level is not high, installing/dismounting is inconvenient, data shift the situations such as inconvenience yet.
Summary of the invention
In view of this, need to overcome at least one in above-mentioned defect of the prior art.The invention provides a kind of online water quality heavy metal analyser, comprise technical grade integral type control module, detecting unit, automatic sampling unit, water sample pretreatment unit, external input-output unit, described technical grade integral type control module is integrated technical grade main frame and large-sized monitor, and have multiple a plurality of communication interface mode;
Described detecting unit, described automatic sampling unit, described water sample pretreatment unit, described external input-output unit link by described communication interface and described technical grade integral type control module and are controlled by described technical grade integral type control module, and the workflow of described online water quality heavy metal analyser sends control command by described technical grade integral type control module;
Described detecting unit quantity is more than or equal to 1, if described detecting unit quantity be greater than 1 o'clock separate, described detecting unit is realized described detecting unit value volume and range of product expansion and reduction by connect dismounting with described communication interface, and described detecting unit is for measuring and analyzing water body heavy metal element ion information;
Described automatic sampling unit is controlled and is automatically sampled by described technical grade integral type control module;
Described external input-output unit obtains Heavy Metals in Waters element ion information and is sent to Terminal Server Client from described technical grade integral type control module by described communication interface.
Described external input-output unit can be connected to controller or computing machine nearby by simple cable, carries out the transmission of information.
Described to prior art in background technology according to the present invention, existing luminosity colorimetric detection method use cost is high, detection sensitivity and precision low (ppm), the reagent complicated component, easily produce secondary pollution, disturbed by other compositions large, and separate unit analyser measurement element is limited, if detect more element user, can only buy many analysers; And atomic absorption method class and ICP quasi-instrument costliness, operation complexity is high, and use cost is high, is not suitable for for on-the-spot on-line monitoring; And online water quality heavy metal analyser provided by the invention can be used described technical grade integral type control module automatically to control described detecting unit, described automatic sampling unit, described water sample pretreatment unit, described external input-output unit by described communication interface, the present invention adopts modular thought, can be expanded and be reduced the value volume and range of product of said units easily, assembly in said units inside is also separate simultaneously, can be expanded easily and reduce equally.
In addition, also there is following additional technical feature according to online water quality heavy metal analyser disclosed by the invention:
Further, described detecting unit comprises electric power system, cell level control system, pump valve drive system, liquid-way system, multichannel peristaltic pump sample introduction pipeline, and described multichannel peristaltic pump sample introduction pipeline supports that plurality of liquid passes in and out analysis cell simultaneously.Separate between each detecting unit, the electric power system that detecting unit comprises, cell level control system and pump valve drive system, liquid-way system etc. are also
separate.
Further, described liquid-way system and described detecting unit link, and described detecting unit comprises a plurality of liquid-way system interfaces, and described liquid-way system and described detecting unit link and detachable and installation, without the firmware program in the described detecting unit of change, can realize the quick function expansion.
Preferably, described detecting unit comprises the leakage detection module, but the leakage situation of the described detecting unit of described leakage detection module Real-Time Monitoring, once leakage is reported to the police immediately.
Preferably, described water sample pretreatment unit comprises the leakage detection module, but described leakage detection module Real-Time Monitoring, and the leakage situation of described water sample pretreatment unit, once leakage is reported to the police immediately.
Preferably, described water sample pretreatment unit comprises dilution water original mold piece, and described dilution water original mold piece can carry out the water sample dilution according to default extension rate to the water sample of high concentration; Clear up the water sample module, the described water sample module of clearing up can add digestion agent and water sample in the digestion tube of a high-temperature closed, institute's water sampling to be processed, and the water sample after processing is drawn in the analysis cell of each described detecting unit.
Preferably, described detecting unit comprises slab construction, and the peristaltic pump that described detecting unit comprises, solenoid valve, analysis cell all are fixed on described plate armature.
This structure vertically is fixed on the crossbeam of described network cabinet, its detecting unit comprise peristaltic pump, solenoid valve and analysis cell all be fixed on this plate armature.The upper end of this plate armature adopts vertical-shaped waist hole to fix, can up-down adjustment, its lower end is fixed on the base plate of detecting unit, by the horizontal waist hole on base plate, fix, can move forward and backward, this fixed form can adapt to the installation requirements of different occasions, and structure is more stable than other structures, and is easy to the replacing of installation and parts.
Preferably, described water sample pretreatment unit comprises slab construction, and the peristaltic pump that described water sample pretreatment unit comprises, solenoid valve, digestion device, temperature controller, multiple-pass joint all are fixed on this slab construction.
This structure vertically is fixed on the crossbeam of described network cabinet, its water sample pretreatment unit comprise peristaltic pump, solenoid valve, digestion device, temperature controller and multiple-pass joint all be fixed on this plate armature.The upper end of this plate armature adopts vertical-shaped waist hole to fix, can up-down adjustment, its lower end is fixed on the base plate of detecting unit, by the horizontal waist hole on base plate, fix, can move forward and backward, this fixed form can adapt to the installation requirements of different occasions, more stable than other structures, and is easy to the replacing of installation and parts.
Further, described online water quality heavy metal analyser comprises the surplus monitoring modular, and described surplus monitoring modular can be monitored the surplus of every kind of default monitoring reagent, if the surplus deficiency is reported to the police to Terminal Server Client.
Preferably, described automatic water sampling unit adopts U-shaped structure, has the silt separation function, at its water inlet end, microfilter is installed, and at its sampling point position, the water level monitoring sensor is installed.
Water sample is divided into two-way from water inlet enters, a wherein road level circulation, and that by a level, installs controls its discharge by order, leads up in addition microfilter, filters the most of particle in water sample.If there is silt etc. in water sample, owing to there being this filtrator, can't passes through this stream, and will discharge by horizontal pipeline.Water sample by filtrator enters U-shaped pipe, and the flow of its stream is vertically arranged by order control by one, by this, by the water sample after making, in the water sample of horizontal pipeline, together is discharged from.After water sample extracts, be full of water sample in its U-shaped pipe, if there is air in water sample, U-shaped pipe also has the aqueous vapor centrifugation.Whether collectedly detect water sample by the liquid level detector that is placed on U-shaped pipe bottom.If water sampling is normal, the water sample pretreatment unit will extract by the water sampling mouth water sample of U-shaped pipe lowermost end.
Further, described external input-output unit comprises the combination in any of hyperchannel 4-20mA input interface or hyperchannel 4-20mA output interface or multi-channel digital amount input interface or multi-channel digital amount output interface or RS232/RS485 output interface or above-mentioned interface.
Described technical grade integral type control module can send or receive data described external input-output unit by MODBUS RTU communication protocol, realizes that the normalization output of measurement result or PLC control.Described external input-output unit design advantage is this unit and other unit are separate and rich interface, easily expansion interface and be applied to other on-line instruments of the same type.
Further, described online water quality heavy metal analyser comprises standard network cabinet, and described technical grade integral type control module, described detecting unit, described automatic sampling unit, described water sample pretreatment unit, described external input-output unit are arranged in described standard network cabinet.
Described standard network cabinet is with low cost, can be good at reducing holistic cost.
The aspect that the present invention is additional and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
The accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments and obviously and easily understand, wherein:
Fig. 1, the 2nd, of the present inventionly face, the backsight structural representation.
Fig. 3 is internal element connection diagram of the present invention.
Fig. 4 is detecting unit structural representation of the present invention.
Fig. 5 is water sample pretreatment unit structural representation of the present invention.
Fig. 6 is automatic sampling unit structural representation of the present invention.
Wherein in figure: 10. technical grade integral type control module, 20. detecting units, 30. detecting units, 40. water sample pretreatment units, 50. automatic sampling units, 60. standard network cabinets, 70. external input-output units.21. analysis cell, 22. peristaltic pumps, 23 BULKHEAD UNION, 24. solenoid valves, 25. pairs of electrodes, 26. stirrers, 27. contrast electrodes, 28. working electrodes.41. peristaltic pump, 42. solenoid valves, 43. BULKHEAD UNION, 44. temperature controllers, 45. counteracting tanks, 46. solid-state relays, 47. multiple-pass joints.51. microfilter, 52. water sample inlet ports, 53. water sampling mouths, 54. liquid level detecting sensors, 55. levels are by order, and 56. vertically by order, 57. water sample escape holes.
Embodiment
Below describe embodiments of the invention in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label means same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " on ", orientation or the position relationship of the indications such as D score, " end ", " top ", 'fornt', 'back', " interior ", " outward ", " left side ", " right side " be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as limitation of the present invention.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " connection ", " connection ", " being connected ", " connection " should be done broad understanding, for example, can be to be fixedly connected with, connecting integratedly, can be also to removably connect; It can be the connection of two element internals; Can be directly to be connected, also can indirectly be connected by intermediary, for the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.
Inventive concept of the present invention is as follows, as described in technical background, online water quality heavy metal analyser provided by the invention can be used described technical grade integral type control module automatically to control described detecting unit by described communication interface, described automatic sampling unit, described water sample pretreatment unit, described external input-output unit, the present invention adopts modular thought, can be expanded and be reduced the value volume and range of product of said units easily, assembly in said units inside is also separate simultaneously, can be expanded easily and be reduced equally, adopt standard network cabinet cheaply can reduce holistic cost.
Online water quality heavy metal analyser of the present invention is described below with reference to accompanying drawings, Fig. 1, the 2nd wherein, of the present inventionly face, the backsight structural representation, Fig. 3 is internal element connection diagram of the present invention, Fig. 4 is detecting unit structural representation of the present invention, and Fig. 5 is water sample pretreatment unit structural representation of the present invention.Fig. 6 is automatic sampling unit structural representation of the present invention.
According to embodiments of the invention, as Figure 1-3, online water quality heavy metal analyser provided by the invention, comprise technical grade integral type control module 10, detecting unit (20,30), automatic sampling unit 50, water sample pretreatment unit 40, external input-output unit 70, described technical grade integral type control module 10 is integrated technical grade main frame and large-sized monitor, and have multiple a plurality of communication interface mode; Described detecting unit (20,30), described automatic sampling unit 50, described water sample pretreatment unit 40, described external input-output unit 70 link by described communication interface and described technical grade integral type control module 10 and are controlled by described technical grade integral type control module 10, and the workflow of described online water quality heavy metal analyser sends control command by described technical grade integral type control module 10; Described detecting unit (20,30) quantity is more than or equal to 1, if described detecting unit quantity be greater than 1 o'clock separate, described detecting unit (20,30) can be realized the expansion of described detecting unit (20,30) value volume and range of product and reduction by connect dismounting with described communication interface, described detecting unit (20,30), for measuring and analyzing water body heavy metal element ion information, is 2 at the described detecting unit shown in Fig. 1,2; Described automatic sampling unit 50 can be controlled and automatically be sampled by described technical grade integral type control module 10; Described external input-output unit 70 can obtain Heavy Metals in Waters element ion information and be sent to Terminal Server Client from described technical grade integral type control module 10 by described communication interface.
As shown in Figure 3, whole online water quality heavy metal analyser presents star structure to annexation between each unit, and technical grade integral type control module 10 is cores of total, and other unit are controlled by it.
Technical grade integral type control module 10 is responsible for the functions such as task scheduling, order transmission and status surveillance of whole analyser.Control a plurality of separate detecting units (20,30), sampling unit 50, water sample pretreatment unit 40, externally each action of input-output unit 70 automatically by it, and this action can freely be defined by the user.
According to some embodiments of the present invention, described detecting unit (20,30) comprises electric power system, cell level control system, pump valve drive system, liquid-way system, multichannel peristaltic pump sample introduction pipeline, and described multichannel peristaltic pump sample introduction pipeline supports that plurality of liquid passes in and out analysis cell simultaneously.
Electric power system provides various power supplys for control system, pump valve drive system, and liquid-way system is that peristaltic pump, solenoid valve, analysis cell are connected into to an integral body turnover sample system by the silica gel hose of corrosion resistance.
Further, described liquid-way system and described detecting unit (20,30) link, described detecting unit (20,30) comprises a plurality of liquid-way system interfaces, described liquid-way system and described detecting unit link and detachable and installation, without the firmware program in the described detecting unit of change, can realize the quick function expansion.
Further, described liquid-way system also comprises that reagent extracts interface, and reagent enters analysis cell by this interface via peristaltic pump etc.Fixing for extracted reagent type, the firmware program without the bottom control system of changing this unit, only carry out easy configuration by the software to the integral type control module and can realize different test functions.
According to some embodiments of the present invention, described detecting unit (20,30) comprises the leakage detection module, but the leakage situation of the described detecting unit of described leakage detection module Real-Time Monitoring (20,30), once leakage is reported to the police immediately.
According to some embodiments of the present invention, described water sample pretreatment unit 40 comprises the leakage detection module, but the leakage situation of the described water sample pretreatment unit 40 of described leakage detection module Real-Time Monitoring, once leakage is reported to the police and stops measuring to Terminal Server Client immediately.
According to some embodiments of the present invention, described water sample pretreatment unit 40 comprises dilution water original mold piece, and described dilution water original mold piece can carry out the water sample dilution according to default extension rate to the water sample of high concentration; Clear up the water sample module, the described water sample module of clearing up can add digestion agent and water sample in the digestion tube of a high-temperature closed, institute's water sampling to be processed, and the water sample after processing is drawn in the analysis cell of each described detecting unit.
According to some embodiments of the present invention, described detecting unit (20,30) comprises slab construction, and the peristaltic pump that described detecting unit comprises, solenoid valve, analysis cell all are fixed on described plate armature.
According to some embodiments of the present invention, described water sample pretreatment unit 40 comprises slab construction, and the peristaltic pump that described water sample pretreatment unit comprises, solenoid valve, digestion device, temperature controller, multiple-pass joint all are fixed on this slab construction.
According to some embodiments of the present invention, described online water quality heavy metal analyser comprises the surplus monitoring modular, and described surplus monitoring modular can be monitored the surplus of every kind of default monitoring reagent, if the surplus deficiency is reported to the police and stops measuring to Terminal Server Client.
According to some embodiments of the present invention, described automatic water sampling unit 50 adopts U-shaped structure, has the silt separation function, at its water intake end, microfilter is installed, and at its sampling point position, the water level monitoring sensor is installed.
Water sample is divided into two-way from water inlet 52 enters, a wherein road level circulation, by a level, install by making its discharge of 55 controls, lead up in addition microfilter 51, filter the most of particle in water sample.If there is silt etc. in water sample, owing to there being this filtrator, can't passes through this stream, and will discharge by horizontal pipeline.Water sample by filtrator enters U-shaped pipe, and the flow of its stream is vertically arranged by making 56 controls by one, by this, by the water sample after making, in the water sample of horizontal pipeline, together is discharged from.After water sample extracts, be full of water sample in its U-shaped pipe, if there is air in water sample, U-shaped pipe also has the aqueous vapor centrifugation.Whether collectedly detect water sample by the liquid level detector 54 that is placed on U-shaped pipe bottom.If water sampling is normal, the water sample pretreatment unit will extract by water sampling mouth 53 water sample of U-shaped pipe lowermost end.
According to some embodiments of the present invention, described external input-output unit comprises the combination in any of hyperchannel 4-20mA input interface or hyperchannel 4-20mA output interface or multi-channel digital amount input interface or multi-channel digital amount output interface or RS232/RS485 output interface or above-mentioned interface.
According to some embodiments of the present invention, described online water quality heavy metal analyser comprises standard network cabinet, and described technical grade integral type control module 10, described detecting unit (20,30), described automatic sampling unit 50, described water sample pretreatment unit 40, described external input-output unit 70 are arranged in described standard network cabinet 60.
The measurement procedure of this online water quality heavy metal analyser can be configured by the software flexible in the integral type control module by the user fully, also can be written into the canonical measure flow process by this software and realize measurement function.
According to some embodiments of the present invention, adopt and be written into the canonical measure flow process:
Integral type control module 10 sends and takes the water sample order to water sample pretreatment unit 40, water sample pretreatment unit 40 according to gained order control automatic sampling unit 50 and extract water samples, after liquid level detecting sensor has detected water sample, by integral type control module 10 control water sample pretreatment units 40 extract water samples with digestion agent in counteracting tank and send startup and clear up order, water sample pretreatment unit 40 is controlled the interior temperature stabilization of counteracting tank 45 in design temperature according to the gained order automatically by temperature controller 44 and solid-state relay 46, after continuing setting-up time, control its automatic cooling by integral type control module 10, supply each detecting unit (20 after being cooled to room temperature, 30) analysis to measure.
In the water sample pre-treatment simultaneously, integral type control module 10 is to each detecting unit (20,30) sender electrode performance maintenance order, after each detecting unit (20,30) completes the electrode performance maintenance, the analysis cell 21 of being controlled in emptying each detecting units (20,30) by integral type control module 10 also cleans up; Controlled and added corresponding electrolytic solution and deionized water as blank sample in the analysis cell 21 of each detecting unit (20,30) by integral type control module 10, carry out blank measure, the gained spectral line data is uploaded to integral type control module 10 as blank sample spectral line; Complete after blank measure and control each detecting unit (20,30) again and continue to add a small amount of titer as standard sample in analysis cell 21 separately, carry out the standard sample measurement, the gained spectral line data is uploaded to integral type control module 10 as the standard sample spectral line; Complete after standard sample is measured and control again the emptying analysis cell 21 separately of each detecting unit (20,30), and clean up with deionized water; Then order each detecting unit (20,30) to add corresponding electrolytic solution in analysis cell 21 separately, and by 40 pre-treatments of water sample pretreatment unit complete water sample to be measured as treating test sample, treated the test sample measurement, the gained spectral line data is uploaded to integral type control module 10 as treating the test sample spectral line.
In the present embodiment, the peristaltic pump (22,41) that the sample introduction of every kind of each unit reagent or the amount of moving back sample are all controlled each unit by integral type control module 10 completes.Each unit relates to while mixing sample introduction, also all by integral type control module 10, by the solenoid valve (24,42) of controlling each unit, has been switched.
Integral type control module 10 is measured from each detecting unit and is obtained blank sample spectrogram, standard sample spectrogram and after the test sample spectrogram by startup, automatically to the spectral data analysis, the concentration value that obtains corresponding element to be measured is shown on the LCDs of integral type control module 10, perhaps by external input-output unit 70, be transferred to Terminal Server Client, for surpassing the result of setting restriction, give the alert notice Terminal Server Client.
Although with reference to a plurality of illustrative examples of the present invention, the specific embodiment of the present invention is described in detail, but it must be understood that, those skilled in the art can design multiple other improvement and embodiment, and these improve and within embodiment will drop on spirit and scope.Particularly, within the scope of aforementioned open, accompanying drawing and claim, can aspect the layout of parts and/or subordinate composite configuration, make rational modification and improvement, and can not break away from spirit of the present invention.Except modification and the improvement of parts and/or layout aspect, its scope is limited by claims and equivalent thereof.
Claims (12)
1. an online water quality heavy metal analyser, comprise technical grade integral type control module, detecting unit, automatic sampling unit, water sample pretreatment unit, external input-output unit, it is characterized in that,
Described technical grade integral type control module is integrated technical grade main frame and large-sized monitor, and have multiple a plurality of communication interface mode;
Described detecting unit, described automatic sampling unit, described water sample pretreatment unit, described external input-output unit link by described communication interface and described technical grade integral type control module and are controlled by described technical grade integral type control module, and the workflow of described online water quality heavy metal analyser sends control command by described technical grade integral type control module;
Described detecting unit quantity is more than or equal to 1, if described detecting unit quantity be greater than 1 o'clock separate, described detecting unit is realized described detecting unit value volume and range of product expansion and reduction by connect dismounting with described communication interface, and described detecting unit is for measuring and analyzing water body heavy metal element ion information;
Described automatic sampling unit is controlled and is automatically sampled by described technical grade integral type control module;
Described external input-output unit obtains Heavy Metals in Waters element ion information and is sent to Terminal Server Client from described technical grade integral type control module by described communication interface.
2. online water quality heavy metal analyser according to claim 1, it is characterized in that, described detecting unit comprises electric power system, cell level control system, pump valve drive system, liquid-way system, multichannel peristaltic pump sample introduction pipeline, described multichannel peristaltic pump sample introduction pipeline supports that plurality of liquid passes in and out analysis cell simultaneously, separate between described detecting unit, its inner ingredient
independent mutually.
3. online water quality heavy metal analyser according to claim 2, it is characterized in that, described liquid-way system and described detecting unit link, described detecting unit comprises a plurality of liquid-way system interfaces, described liquid-way system and described detecting unit link and detachable or installation, without the firmware program in the described detecting unit of change, can realize the quick function expansion.
4. online water quality heavy metal analyser according to claim 1, is characterized in that, described detecting unit comprises the leakage detection module, but the leakage situation of the described detecting unit of described leakage detection module Real-Time Monitoring, once leakage is reported to the police immediately.
5. online water quality heavy metal analyser according to claim 1, it is characterized in that, described water sample pretreatment unit comprises the leakage detection module, but the leakage situation of the described water sample pretreatment unit of described leakage detection module Real-Time Monitoring, once leakage is reported to the police immediately.
6. online water quality heavy metal analyser according to claim 1, is characterized in that, described water sample pretreatment unit comprises dilution water original mold piece, and described dilution water original mold piece can carry out the water sample dilution according to default extension rate to the water sample of high concentration; Clear up the water sample module, the described water sample module of clearing up can add digestion agent and water sample in the digestion tube of a high-temperature closed, institute's water sampling to be processed, and the water sample after processing is drawn in the analysis cell of each described detecting unit.
7. online water quality heavy metal analyser according to claim 1, is characterized in that, described detecting unit comprises slab construction, and the peristaltic pump that described detecting unit comprises, solenoid valve, analysis cell all are fixed on described plate armature.
8. online water quality heavy metal analyser according to claim 1, it is characterized in that, described water sample pretreatment unit comprises slab construction, and the peristaltic pump that described water sample pretreatment unit comprises, solenoid valve, digestion device, temperature controller, multiple-pass joint all are fixed on this slab construction.
9. online water quality heavy metal analyser according to claim 1, it is characterized in that, described online water quality heavy metal analyser comprises the surplus monitoring modular, and described surplus monitoring modular can be monitored the surplus of every kind of default monitoring reagent, if the surplus deficiency, report to the police to Terminal Server Client.
10. online water quality heavy metal analyser according to claim 1, it is characterized in that, described automatic water sampling unit adopts U-shaped structure, has the silt separation function, at its water intake end, microfilter is installed, at its sampling point position, the water level monitoring sensor is installed.
11. online water quality heavy metal analyser according to claim 1, it is characterized in that, described external input-output unit comprises the combination in any of hyperchannel 4-20mA input interface or hyperchannel 4-20mA output interface or multi-channel digital amount input interface or multi-channel digital amount output interface or RS232/RS485 output interface or above-mentioned interface.
12. online water quality heavy metal analyser according to claim 1, it is characterized in that, described online water quality heavy metal analyser comprises standard network cabinet, and described technical grade integral type control module, described detecting unit, described automatic sampling unit, described water sample pretreatment unit, described external input-output unit are arranged in described standard network cabinet.
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| CN 201320204117 CN203365381U (en) | 2013-04-22 | 2013-04-22 | Online analyzer for heavy metal in water |
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| CN 201320204117 CN203365381U (en) | 2013-04-22 | 2013-04-22 | Online analyzer for heavy metal in water |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103364461A (en) * | 2013-04-22 | 2013-10-23 | 江苏天瑞仪器股份有限公司 | Online water heavy metal analyzer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103364461A (en) * | 2013-04-22 | 2013-10-23 | 江苏天瑞仪器股份有限公司 | Online water heavy metal analyzer |
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