CN103353472B - The online water quality heavy metal analyser of a kind of network - Google Patents
The online water quality heavy metal analyser of a kind of network Download PDFInfo
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- CN103353472B CN103353472B CN201310139012.8A CN201310139012A CN103353472B CN 103353472 B CN103353472 B CN 103353472B CN 201310139012 A CN201310139012 A CN 201310139012A CN 103353472 B CN103353472 B CN 103353472B
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Abstract
The invention discloses the online water quality heavy metal analyser of a kind of network, comprise technical grade integral type control module, detecting unit, automatically sampling unit, water sample pretreatment unit, externally input-output unit, mixed-media network modules mixed-media.Network provided by the invention online water quality heavy metal analyser can use 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 expand the value volume and range of product of said units easily and reduce, assembly simultaneously in said units inside is also separate, can carry out easily expanding and reducing equally, the standard network cabinet of low cost is adopted to reduce holistic cost, and make the process of data convenient, simultaneously for adapting to remote control requirements, mixed-media network modules mixed-media can carry out data transmission by wire and wireless network easily.
Description
Technical field
The present invention relates to water analysis field, specifically, relate to the online water quality heavy metal analyser of a kind of network.
Background technology
The mensuration of Heavy Metals in Waters element ion is an important content of water analysis, and the technology used by current Heavy Metal Pollution in Water Environment monitoring mainly contains the methods such as electrochemical analysis, atomic absorption spectroscopy, Inductively Coupled Plasma Atomic Emission Spectrometry, inductively coupled plasma mass spectrometry analyser technology and biological monitoring.Existing luminosity colorimetric detection method use cost is high, detection sensitivity and precision low (ppm), and agent formulations is complicated, easy generation secondary pollution, large by the interference of other compositions, and separate unit analyser measurement element is limited, if will detect more element user can only buy multiple stage analyser; And atomic absorption method class and ICP quasi-instrument are expensive, 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 first invented in 19th century the '20s, and won Nobel chemistry Prize in nineteen fifty-nine for its inventor JaroslavHeyrovsky, 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 spectrum electric current, can there is peak value in specific potential in specific element, and peak value size or peak area size directly reflect the ion concentration of this element, can qualitative and quantitative analysis concentration of heavy metal ion based on this.It is fast that the method has measuring speed, and detection limit is low, and measuring accuracy is better than ppb level, and the few cost of reagent consumption is low, and can measure the features such as various metals simultaneously.
Also there are some water quality heavy metal analysers in the market, but still there is the situations such as integrated level is not high, installing/dismounting is inconvenient, data batchmove is inconvenient.
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 the online water quality heavy metal analyser of a kind of network, comprise technical grade integral type control module, detecting unit, automatically sampling unit, water sample pretreatment unit, externally input-output unit, described in it is characterized in that,
Described technical grade integral type control module is integrated with technical grade main frame and large-sized monitor, and has multiple multiple communication interface mode;
Described detecting unit, described automatic sampling unit, described water sample pretreatment unit, described external input-output unit are connected 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 network 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, when if described detecting unit quantity is greater than 1, separate, described detecting unit realizes described detecting unit value volume and range of product and expands by connecting dismounting with described communication interface and reduce, and described detecting unit is used for measuring and heavy metal element ion information in analyzing water body;
Described automatic sampling unit can be controlled automatically to sample by described technical grade integral type control module;
Described external input-output unit obtains Heavy Metals in Waters element ion information by described communication interface from described technical grade integral type control module and is sent to Terminal Server Client.
Described external input-output unit can be connected to controller nearby or computing machine by simple cable, carries out the transmission of information.
Described mixed-media network modules mixed-media, obtain Heavy Metals in Waters element ion information by described communication interface from described technical grade integral type control module and use wired or wireless mode to be sent to Terminal Server Client by mixed-media network modules mixed-media, or directly obtain Heavy Metals in Waters element ion information by described technical grade integral type control module and use wired or wireless mode to be sent to network remote client by mixed-media network modules mixed-media.
Optimal way, described mixed-media network modules mixed-media makes wirelessly to carry out information transmission.
According in background technology of the present invention to described in prior art, existing luminosity colorimetric detection method use cost is high, detection sensitivity and precision low (ppm), agent formulations is complicated, easy generation secondary pollution, large by the interference of other compositions, and separate unit analyser measurement element is limited, if will detect more element user can only buy multiple stage analyser; And atomic absorption method class and ICP quasi-instrument are expensive, operation complexity is high, and use cost is high, is not suitable for for on-the-spot on-line monitoring; And network provided by the invention online water quality heavy metal analyser can use 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 expand the value volume and range of product of said units easily and reduce, assembly simultaneously in said units inside is also separate, can carry out easily expanding and reducing equally.
In addition, according to network disclosed by the invention online water quality heavy metal analyser, also there is following additional technical feature:
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 are connected, and described detecting unit comprises multiple liquid-way system interface, and described liquid-way system and described detecting unit are connected and detachable and install, without the need to changing the firmware program in described detecting unit, quick function expansion can be realized.
Preferably, described detecting unit comprises leakage detection module, and described leakage detection module can the leakage situation of detecting unit described in Real-Time Monitoring, once leakage is reported to the police immediately.
Preferably, described water sample pretreatment unit comprises leakage detection module, and described leakage detection module can 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 block, and described dilution water original mold block can carry out water sample dilution to the water sample of high concentration according to default extension rate; Clear up water sample module, described in clear up water sample module and can add digestion agent and water sample to institute's water sampling process in the digestion tube of a high-temperature closed, the water sample after process is drawn in the analysis cell of each described detecting unit.
Preferably, described detecting unit comprises slab construction, and the described peristaltic pump that described detecting unit comprises, described solenoid valve, described analysis cell are all fixed on described plate armature.
This structure vertical is fixed on the crossbeam of described network cabinet, its detecting unit comprise peristaltic pump, solenoid valve and analysis cell be all 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, fixed by the horizontal waist hole on base plate, can move forward and backward, this fixed form can adapt to the installation requirements of different occasion, and structure is more stable compared to other structures, and is easy to install the replacing with parts.
Preferably, described water sample pretreatment unit comprises described peristaltic pump, described solenoid valve, described digestion device, described temperature controller, described multiple-pass joint are all fixed in this slab construction.
This structure vertical 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 be all 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, fixed by the horizontal waist hole on base plate, can move forward and backward, this fixed form can adapt to the installation requirements of different occasion, more stable compared to other structures, and is easy to install the replacing with parts.
Further, the online water quality heavy metal analyser of described network comprises surplus monitoring modular, and described surplus monitoring modular can monitor the surplus of often kind of default monitoring reagent, if surplus is not enough, then reports to the police to Terminal Server Client.
Preferably, described automatic water sampling unit adopts U-shaped structure, has silt separation function, is provided with microfilter at its water inlet end, be provided with water level detecting sensor at its sampling point position.
Water sample is divided into two-way after water inlet enters, wherein a road level circulation, and that is installed by a level controls its discharge by order, leads up to microfilter in addition, filters the most of particle in water sample.If there is silt etc. in water sample, owing to there is this filtrator, cannot this stream be passed through, and will be discharged by horizontal pipeline.Enter U-tube by the water sample of filtrator, the flow of its stream vertically arrangedly to be controlled by order by one, is together discharged by the water sample after making by this in the water sample of horizontal pipeline.After water sample extracts, be full of water sample in its U-tube, if there is air in water sample, U-tube also has aqueous vapor centrifugation.Whether collectedly water sample is detected by the liquid level detector being placed on U-tube bottom.If water sampling is normal, water sample pretreatment unit will extract the water sample of U-tube lowermost end by water sampling mouth.
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 sends or reception data described external input-output unit by MODBUSRTU communication protocol, and the normalization output or the PLC that realize measurement result control.Described external input-output unit design advantage is this unit and the separate and rich interface of other unit, can expansion interface and be applied to other on-line instruments of the same type easily.
Further, the online water quality heavy metal analyser of described network 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 adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is structural representation of the present invention.
Fig. 2 is internal element connection diagram of the present invention.
Fig. 3 is detecting unit structural representation of the present invention.
Fig. 4 is water sample pretreatment unit structural representation of the present invention.
Fig. 5 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, 80 mixed-media network modules mixed-medias.21. analysis cells, 22. peristaltic pumps, 23 BULKHEAD UNION, 24. solenoid valves, 25. pairs of electrodes, 26. stirrers, 27. contrast electrodes, 28. working electrodes.41. peristaltic pumps, 42. solenoid valves, 43. BULKHEAD UNION, 44. temperature controllers, 45. counteracting tanks, 46. solid-state relays, 47. multiple-pass joints.51. microfilters, 52. water sample inlet ports, 53. water sampling mouths, 54. liquid level detecting sensors, 55. levels are by making, and 56. vertically by making, 57. water sample escape holes.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " on ", D score, " end ", " top ", "front", "rear", " interior ", " outward ", the orientation of the instruction such as "left", "right" or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " connection ", " connection ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, connecting integratedly, also can be removably connect; It can be the connection of two element internals; Can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, concrete condition can understand above-mentioned term concrete meaning in the present invention.
Inventive concept of the present invention is as follows, as as described in technical background, network provided by the invention online water quality heavy metal analyser can use 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 expand the value volume and range of product of said units easily and reduce, assembly simultaneously in said units inside is also separate, can carry out easily expanding and reducing equally, the standard network cabinet of low cost is adopted to reduce holistic cost.
The online water quality heavy metal analyser of network of the present invention is described below with reference to accompanying drawings, wherein Fig. 1 is structural representation of the present invention, Fig. 2 is internal element connection diagram of the present invention, Fig. 3 is detecting unit structural representation of the present invention, and Fig. 4 is water sample pretreatment unit structural representation of the present invention.Fig. 5 is automatic sampling unit structural representation of the present invention.
According to embodiments of the invention, as shown in Figure 1, 2, the online water quality heavy metal analyser of network provided by the invention, comprise technical grade integral type control module 10, detecting unit (20,30), automatically sampling unit 50, water sample pretreatment unit 40, externally input-output unit 70, mixed-media network modules mixed-media 80, described technical grade integral type control module 10 is integrated with technical grade main frame and large-sized monitor, and has multiple multiple 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 are connected 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 network 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, when if described detecting unit quantity is greater than 1, separate, described detecting unit (20, 30) described detecting unit (20 is realized by connecting dismounting with described communication interface, 30) value volume and range of product expansion and reduction, described detecting unit (20, 30) for measuring and heavy metal element ion information in analyzing water body, described mixed-media network modules mixed-media 80(is as shown in Figure 2) obtain Heavy Metals in Waters element ion information by described communication interface from described technical grade integral type control module 10 and use wired or wireless mode to be sent to Terminal Server Client by mixed-media network modules mixed-media 80, or directly obtain Heavy Metals in Waters element ion information by described technical grade integral type control module 10 and use wired or wireless mode to be sent to network remote client by mixed-media network modules mixed-media 80, described detecting unit is in FIG 2, described automatic sampling unit 50 can be controlled automatically to sample by described technical grade integral type control module 10, described external input-output unit 70 obtains Heavy Metals in Waters element ion information by described communication interface from described technical grade integral type control module 10 and is sent to Terminal Server Client.
As shown in Figure 2, the online water quality heavy metal analyser of whole network presents star structure to annexation between each unit, and technical grade integral type control module 10 is cores of total, and other unit control by it.
Technical grade integral type control module 10 is responsible for the task scheduling of whole analyser, order sends and the function such as status surveillance.Controlled each action of multiple separate detecting unit (20,30), automatically sampling unit 50, water sample pretreatment unit 40, externally input-output unit 70 by it, and this action freely can be defined by 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 is control system, pump valve drive system provides various power supply, and liquid-way system is that peristaltic pump, solenoid valve, analysis cell are connected into an entirety turnover sample system by the silica gel hose of corrosion resistance.
Further, described liquid-way system and described detecting unit (20,30) are connected, described detecting unit (20,30) comprises multiple liquid-way system interface, described liquid-way system and described detecting unit are connected and detachable and install, without the need to changing the firmware program in described detecting unit, quick function expansion can be realized.
Further, described liquid-way system also comprises reagent aspiration interface, and reagent enters analysis cell by this interface via peristaltic pump etc.Extracted reagent type not being fixed, without the need to changing the firmware program of the final control system of this unit, different test functions can be realized by means of only carrying out easy configuration to the software of integral type control module.
According to some embodiments of the present invention, described detecting unit (20,30) comprises leakage detection module, and described leakage detection module can the leakage situation of detecting unit (20,30) described in Real-Time Monitoring, once leakage is reported to the police immediately.
According to some embodiments of the present invention, described water sample pretreatment unit 40 comprises leakage detection module, and described leakage detection module can the leakage situation of water sample pretreatment unit 40 described in Real-Time Monitoring, once leakage is reported to the police to Terminal Server Client immediately and stopped measuring.
According to some embodiments of the present invention, described water sample pretreatment unit 40 comprises dilution water original mold block, and described dilution water original mold block can carry out water sample dilution to the water sample of high concentration according to default extension rate; Clear up water sample module, described in clear up water sample module and can add digestion agent and water sample to institute's water sampling process in the digestion tube of a high-temperature closed, the water sample after process 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 described peristaltic pump that described detecting unit comprises, described solenoid valve, described analysis cell are all fixed on described plate armature.
According to some embodiments of the present invention, described water sample pretreatment unit 40 comprises slab construction, and the described peristaltic pump that described water sample pretreatment unit comprises, described solenoid valve, described digestion device, described temperature controller, described multiple-pass joint are all fixed in this slab construction.
According to some embodiments of the present invention, the online water quality heavy metal analyser of described network comprises surplus monitoring modular, and described surplus monitoring modular can monitor the surplus of often kind of default monitoring reagent, if surplus is not enough, then reports to the police to Terminal Server Client and stops measuring.
According to some embodiments of the present invention, described automatic water sampling unit 50 adopts U-shaped structure, has silt separation function, is provided with microfilter at its water intake end, be provided with water level detecting sensor at its sampling point position.
Water sample is divided into two-way after water inlet 52 enters, wherein a road level circulation, by a level install by making its discharge of 55 controls, lead up to microfilter 51 in addition, filter the most of particle in water sample.If there is silt etc. in water sample, owing to there is this filtrator, cannot this stream be passed through, and will be discharged by horizontal pipeline.Enter U-tube by the water sample of filtrator, the flow of its stream is vertically arranged by making 56 controls by one, is together discharged by the water sample after making by this in the water sample of horizontal pipeline.After water sample extracts, be full of water sample in its U-tube, if there is air in water sample, U-tube also has aqueous vapor centrifugation.Whether collectedly water sample is detected by the liquid level detector 54 being placed on U-tube bottom.If water sampling is normal, water sample pretreatment unit will extract the water sample of U-tube lowermost end by water sampling mouth 53.
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, the online water quality heavy metal analyser of described network 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 the online water quality heavy metal analyser of this network can be configured by the software flexible in integral type control module by user completely, also can be loaded into canonical measure flow process by this software and realize measurement function.
According to some embodiments of the present invention, adopt and be loaded into canonical measure flow process:
Integral type control module 10 sends to water sample pretreatment unit 40 and takes water sample order, water sample pretreatment unit 40 controls automatic sampling unit 50 according to gained order and extracts water sample, detect after water sample until liquid level detecting sensor, control water sample pretreatment unit 40 by integral type control module 10 to extract in water sample and digestion agent to counteracting tank and send startup and clear up order, water sample pretreatment unit 40 controls temperature stabilization in counteracting tank 45 in design temperature according to gained order automatically by temperature controller 44 and solid-state relay 46, after continuing setting-up time, control it by integral type control module 10 automatically to lower the temperature, each detecting unit (20 is supplied after being cooled to room temperature, 30) analysis to measure.
In water sample pre-treatment simultaneously, integral type control module 10 is to each detecting unit (20,30) sender electrode performance maintenance order, complete after electrode performance maintenance until each detecting unit (20,30), control the analysis cell 21 in emptying each detecting unit (20,30) by integral type control module 10 and clean up; Control to add corresponding electrolytic solution and deionized water in the analysis cell 21 of each detecting unit (20,30) as blank sample by integral type control module 10, carry out blank measure, gained spectral line data is uploaded to integral type control module 10 as blank sample spectral line; Control each detecting unit (20,30) after completing blank measure again to continue to add a small amount of titer as standard sample in respective analysis cell 21, carry out standard sample measurement, gained spectral line data is uploaded to integral type control module 10 as standard sample spectral line; Complete after standard sample is measured and control the emptying respective analysis cell 21 of each detecting unit (20,30) again, and clean by washed with de-ionized water; Then each detecting unit (20,30) is ordered to add corresponding electrolytic solution in respective analysis cell 21, and by the complete water sample to be measured of water sample pretreatment unit 40 pre-treatment as treating test sample, carry out treating that test sample is measured, gained spectral line data is uploaded to integral type control module 10 as treating test sample spectral line.
In the present embodiment, the peristaltic pump (22,41) that the sample introduction of often kind of reagent of each unit or the amount of moving back sample all control each unit by integral type control module 10 completes.When each unit relates to mixing sample introduction, also all switched by the solenoid valve (24,42) controlling each unit by integral type control module 10.
Integral type control module 10 obtains blank sample spectrogram, standard sample spectrogram and after test sample spectrogram by starting to measure from each detecting unit, automatically to spectral data analysis, the concentration value obtaining corresponding element to be measured is shown in the LCDs of integral type control module 10, or be transferred to Terminal Server Client by external input-output unit 70, alert notice Terminal Server Client is given for the result exceeding setting restriction.
Although be described in detail the specific embodiment of the present invention with reference to multiple illustrative examples of the present invention, but it must be understood that, those skilled in the art can design multiple other improvement and embodiment, these improve and embodiment will drop within spirit and scope.Specifically, within the scope of aforementioned open, accompanying drawing and claim, rational modification and improvement can be made in the layout of parts and/or sub-combination layout, and spirit of the present invention can not be departed from.Except modification and the improvement of parts and/or layout aspect, its scope is by claims and equivalents thereof.
Claims (12)
1. the online water quality heavy metal analyser of network, comprises technical grade integral type control module, detecting unit, automatically sampling unit, water sample pretreatment unit, externally input-output unit, mixed-media network modules mixed-media, it is characterized in that,
Described technical grade integral type control module is integrated with technical grade main frame and large-sized monitor, and has multiple multiple communication interface mode;
Described detecting unit, described automatic sampling unit, described water sample pretreatment unit, described external input-output unit are connected 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 network 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, when if described detecting unit quantity is greater than 1, separate, described detecting unit realizes described detecting unit value volume and range of product and expands by connecting dismounting with described communication interface and reduce, and described detecting unit is used for measuring and heavy metal element ion information in analyzing water body;
Described automatic sampling unit can be controlled automatically to sample by described technical grade integral type control module;
Described external input-output unit obtains Heavy Metals in Waters element ion information by described communication interface from described technical grade integral type control module and is sent to Terminal Server Client;
Described mixed-media network modules mixed-media, obtain Heavy Metals in Waters element ion information by described communication interface from described technical grade integral type control module and use wired or wireless mode to be sent to Terminal Server Client by mixed-media network modules mixed-media, or directly obtain Heavy Metals in Waters element ion information by described technical grade integral type control module and use wired or wireless mode to be sent to network remote client by mixed-media network modules mixed-media.
2. the online water quality heavy metal analyser of network 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 internal portions is independent mutually.
3. the online water quality heavy metal analyser of network according to claim 2, it is characterized in that, described liquid-way system and described detecting unit are connected, described detecting unit comprises multiple liquid-way system interface, described liquid-way system and described detecting unit are connected and detachable and install, without the need to changing the firmware program in described detecting unit, quick function expansion can be realized.
4. the online water quality heavy metal analyser of network according to claim 1, it is characterized in that, described detecting unit comprises leakage detection module, and described leakage detection module can the leakage situation of detecting unit described in Real-Time Monitoring, once leakage is reported to the police immediately.
5. the online water quality heavy metal analyser of network according to claim 1, it is characterized in that, described water sample pretreatment unit comprises leakage detection module, and described leakage detection module can the leakage situation of water sample pretreatment unit described in Real-Time Monitoring, once leakage is reported to the police immediately.
6. the online water quality heavy metal analyser of network according to claim 1, is characterized in that, described water sample pretreatment unit comprises dilution water original mold block, and described dilution water original mold block can carry out water sample dilution to the water sample of high concentration according to default extension rate; Clear up water sample module, described in clear up water sample module and can add digestion agent and water sample to institute's water sampling process in the digestion tube of a high-temperature closed, the water sample after process is drawn in the analysis cell of each described detecting unit.
7. the online water quality heavy metal analyser of network according to claim 1, it is characterized in that, described detecting unit comprises slab construction, described detecting unit comprises peristaltic pump, solenoid valve, analysis cell, and described peristaltic pump, described solenoid valve, described analysis cell are all fixed on described plate armature.
8. the online water quality heavy metal analyser of network according to claim 1, it is characterized in that, described water sample pretreatment unit comprises slab construction, described water sample pretreatment unit comprises peristaltic pump, solenoid valve, digestion device, temperature controller and multiple-pass joint, and described peristaltic pump, described solenoid valve, described digestion device, described temperature controller, described multiple-pass joint are all fixed in this slab construction.
9. the online water quality heavy metal analyser of network according to claim 1, it is characterized in that, the online water quality heavy metal analyser of described network comprises surplus monitoring modular, described surplus monitoring modular can monitor the surplus of often kind of default monitoring reagent, if surplus is not enough, then report to the police to Terminal Server Client.
10. the online water quality heavy metal analyser of network according to claim 1, it is characterized in that, described automatic water sampling unit adopts U-shaped structure, has silt separation function, at its water intake end, microfilter is installed, at its sampling point position, water level detecting sensor is installed.
The online water quality heavy metal analyser of 11. network 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.
The online water quality heavy metal analyser of 12. network according to claim 1, it is characterized in that, the online water quality heavy metal analyser of described network 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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