CN205210009U - Chemistry multi -parameter on -line monitoring instrument - Google Patents
Chemistry multi -parameter on -line monitoring instrument Download PDFInfo
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- CN205210009U CN205210009U CN201521068323.0U CN201521068323U CN205210009U CN 205210009 U CN205210009 U CN 205210009U CN 201521068323 U CN201521068323 U CN 201521068323U CN 205210009 U CN205210009 U CN 205210009U
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- flow cell
- multiparameter
- dissolved oxygen
- hydrogen
- conductance
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Abstract
The utility model relates to a soda sampling test instrument field particularly, relates to a chemistry multi -parameter on -line monitoring instrument. It includes multi -parameter display instrument, specific conductance flow -through cell, hydrogen post, hydrogen electric conductance flow -through cell and dissolved oxygen flow -through cell, specific conductance flow -through cell, hydrogen post, hydrogen electric conductance flow -through cell and dissolved oxygen flow -through cell are established ties in proper order, multi -parameter display instrument is connected with specific conductance flow -through cell, hydrogen electric conductance flow -through cell and dissolved oxygen flow -through cell respectively, can calculate the back demonstration with specific conductance value and hydrogen electric conductance value. The utility model discloses need not install online pH value table, simple structure is convenient, can economize on water, reduce investment cost and maintenance cost, can put forward high automation and operation management's level.
Description
Technical field
The utility model relates to steam water sampling detecting instrument field, in particular to one chemical multiparameter on-line monitoring instrument.
Background technology
For preventing therrmodynamic system corrosion and scaling and salification, Unit Steam Water quality should meet GB/T12145 " thermal power generation unit and apparatus of steam power plants Water Vapor Quality " relevant criterion.For timely, continuous, accurate measurements Unit Steam Water quality, DL/T5068 " power plant chemistry designing technique regulation " annex I defines unit thermodynamic system water and steam sampling point and on-line chemical monitoring instrument configuration.Generally, a water sample needs to monitor multiple parameter, lead as direct current cooker oxygen-eliminating device entrance, condensate pump outlet and main steam left and right side need to install hydrogen, than leading and pH table, boiler economizer entrance needs to install that hydrogen is led, than leading, dissolved oxygen table and pH show.
Under normal circumstances, often kind of online table meter design one road water sample, a set of pole cup, electrode and secondary instrument thereof, not only waste water sample, low temperature sampling rack take up an area large, and investment cost and the high deficiency of maintenance cost.
Utility model content
The purpose of this utility model is to provide a kind of chemical multiparameter on-line monitoring instrument, to solve the above problems.
Embodiments provides a kind of chemical multiparameter on-line monitoring instrument of the present utility model, comprise multiparameter Displaying Meter, than conductance flow cell, hydrogen post, hydrogen conductance flow cell and dissolved oxygen DO flow cell;
Describedly to connect successively than conductance flow cell, described hydrogen post, described hydrogen conductance flow cell and described dissolved oxygen DO flow cell;
Described multiparameter Displaying Meter is connected than conductance flow cell, described hydrogen conductance flow cell and described dissolved oxygen DO flow cell with described respectively, shows pH value after the described parameter obtained than conductance flow cell, described hydrogen conductance can being calculated.
Further, described multiparameter Displaying Meter is also connected with PH electrode.
Further, describedly conductivity sensor is provided with than on conductance flow cell.
Further, described dissolved oxygen DO flow cell is provided with dissolved oxygen sensor.
Further, described multiparameter Displaying Meter comprises display and data processor;
Described data processor is connected than conductance flow cell, described hydrogen conductance flow cell and described dissolved oxygen DO flow cell with described respectively;
Described display is connected with described data processor, and the data after described data processor can being calculated show.
Further, described display is liquid crystal display.
Further, described data processor comprises data acquisition module, communication module and data computation module;
Described data acquisition module is connected than conductance flow cell, described hydrogen conductance flow cell and described dissolved oxygen DO flow cell with described respectively;
The data collected are sent in described data computation module by described communication module by described data acquisition module;
Described data computation module is connected with described display, the data after calculating can be shown by described display.
Further, described data acquisition module is A/D converter.
Further, described multiparameter Displaying Meter is provided with the connecting line be communicated with DCS.
Further, in described hydrogen post, be provided with positive resin, for carrying out positive resin exchange with sample water.
The chemical multiparameter on-line monitoring instrument that the utility model provides, after connecting than conductance flow cell, hydrogen post, hydrogen conductance flow cell, dissolved oxygen DO flow cell, sample water is monitored, the data obtained pass to multiparameter Displaying Meter again, pH value is calculated by multiparameter Displaying Meter by the data by monitoring, do not need online pH value table is installed, structure is simple and convenient, can economize on water, reduce investment cost and maintenance cost, and the level of robotization and operational management can be improved.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model chemistry multiparameter on-line monitoring instrument;
Fig. 2 is the structural representation of the multiparameter Displaying Meter of the utility model chemistry multiparameter on-line monitoring instrument.
Reference numeral:
1: than conductance flow cell 2: hydrogen post 3: multiparameter Displaying Meter
4: hydrogen conductance flow cell 5: dissolved oxygen DO flow cell 6:PH electrode
7: data acquisition module 8: communication module 9: data processing module
10: display 11: connecting line
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, carry out clear, complete description by the technical solution of the utility model below.Obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope that the utility model is protected.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, also it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
As shown in Figure 1, the utility model provides a kind of chemical multiparameter on-line monitoring instrument, comprises multiparameter Displaying Meter 3, than conductance flow cell 1, hydrogen post 2, hydrogen conductance flow cell 4 and dissolved oxygen DO flow cell 5;
Describedly to connect successively than conductance flow cell 1, described hydrogen post 2, described hydrogen conductance flow cell 4 and described dissolved oxygen DO flow cell 5;
Described multiparameter Displaying Meter 3 is connected than conductance flow cell 1, described hydrogen conductance flow cell 4 and described dissolved oxygen DO flow cell 5 with described respectively, the described parameter obtained than conductance flow cell 1, described hydrogen conductance flow cell 4 and described dissolved oxygen DO flow cell 5 can be carried out calculating rear display.
The utility model is mainly directed to generating plant Unit Steam Water sampling system, sample water is successively after than conductance flow cell 1, hydrogen post 2, hydrogen conductance flow cell 4 and dissolved oxygen DO flow cell 5, the parameter obtained all can being sent in multiparameter Displaying Meter 3, after the parameter by obtaining is calculated by multiparameter Displaying Meter 3, demonstrating the pH value of this sample water.
Such setting, when the monitoring of sample water, does not need to install pH value table online, only needing can draw by gathering rear calculating to several parameter, using fairly simple convenience, and can also monitor multiple parameter, make monitoring more practical, more meaningful.And such setting, relatively simple for structure, use also fast more convenient.Can by after calculating than electric conductivity value and hydrogen electric conductivity value in ammonification water sample, by the pH value in multiparameter Displaying Meter display ammonification water sample.
Certainly, it should be noted that, the utility model is mainly directed to generating plant Unit Steam Water sampling system, but it is not only confined to generating plant Unit Steam Water sampling system, and it can also be applied in other aspect.
Be preferred embodiment that described multiparameter Displaying Meter 3 is also connected with PH electrode 6.
PH electrode 6 is high-intelligentization on-line continuous monitors, is made up of sensor and secondary instrument two parts.Three compounds or two combination electrodes can be joined, to meet various field of employment.Mix pure water and ultrapure water electrode, be applicable to the water quality that conductivity is less than 3 μ s/cm, the pH value as chemical feed water, saturated vapor, condensate water etc. is measured.
In non-power ammoniacal liquor sample, increase a PH electrode and flow cell, just can pH value determination; Multiparameter Displaying Meter 3 connects online PH electrode 6, and the data that the data that can be monitored by PH electrode 6 and multiparameter Displaying Meter 3 are calculated contrast, and then make the data of the pH value finally obtained more accurate.
Be preferred embodiment describedly be provided with conductivity sensor than on conductance flow cell.
Conductivity sensor is the sensor being used to measure the electrical conductances of various solution such as ultrapure water, pure water, potable water, sewage or the concentration of this overall ion of water gauge in laboratory, commercial production and field of detecting.
Conductivity sensor can be divided into electrode type conductivity sensor, inductive type conductivity sensor and ultrasound wave conductivity sensor according to measuring principle from the different of method.Electrode type conductivity sensor adopts resistance method of temperature measurement according to electrolytic conduction principle.Realize measuring to conductivity, its conductance measurement electrode shows as a complicated electro-chemical systems in measuring process; Inductive type conductivity sensor realizes the measurement to liquid electric conductivity according to electromagnetic induction principle; Ultrasound wave conductivity sensor changes in a liquid according to ultrasound wave to be measured conductivity, wherein extensive with first two sensor application.
Arranging conductivity sensor than in conductance flow cell, can measure than electric conductivity value timely, being then transferred to multiparameter Displaying Meter 3.
Be preferred embodiment that described dissolved oxygen DO flow cell 5 is provided with dissolved oxygen sensor.
Dissolved oxygen sensor is a kind of sensing equipment for measuring the meltage of oxygen in water.
Dissolved oxygen sensor is set in dissolved oxygen DO flow cell 5, timely the meltage of oxygen in sample water can be measured, then be transferred to multiparameter Displaying Meter 3.
Be preferred embodiment that described multiparameter Displaying Meter 3 comprises display 10 and data processor;
Described data processor is connected than conductance flow cell 1, described hydrogen conductance flow cell 4 and described dissolved oxygen DO flow cell 5 with described respectively;
Described display 10 is connected with described data processor, and the data after described data processor can being calculated show.
From the data of coming than biography in conductance flow cell 1, hydrogen conductance flow cell 4 and dissolved oxygen DO flow cell 5, calculated by data processor, the result of final pH value is transferred to display 10 and shows, so that staff observes by data after calculating again.
The connected mode that data processor and each parts carry out being connected can be that line connects, and also can be that signal connects, i.e. wireless connections etc., as long as it can realize accepting and sending data.
Be preferred embodiment that described display 10 is liquid crystal display 10.
Liquid crystal is a kind of particular matter between solid and liquid, it is a kind of organic compound, be in a liquid state under normality, but its molecules align is but the same with solid crystal fairly regular, therefore liquid crystal is named, its another special nature is, if apply an electric field to liquid crystal, its molecules align can be changed, if at this moment give its matching polarized light sheet, it just has the effect stoping light to pass through, when not applying electric field, light can smoothly through, if coordinate colored filter again, change and add to liquid crystal voltage size, just can change a certain color light transmission capacity number, the voltage that also figuratively can change liquid crystal two ends just can change its penetrability, but this must coordinate with Polarizer in reality.
In the present embodiment, display 10 is set to liquid crystal display 10, the data sent by data processor, directly carries out numerical monitor by liquid crystal display 10, is convenient to observe.
It is pointed out that and employ liquid crystal display 10 in the present embodiment, but it is not only confined to liquid crystal display 10, it can also be the display 10 of other types, as plasma display 10 etc., that is, as long as the data that data processor exports can show by it.
Be preferred embodiment that as shown in Figure 2, described data processor comprises data acquisition module 7, communication module 8 and data computation module 9;
Described data acquisition module 7 is connected than conductance flow cell 1, described hydrogen conductance flow cell 4 and described dissolved oxygen DO flow cell 5 with described respectively;
The data collected are sent in described data computation module 9 by described communication module 8 by described data acquisition module 7;
Described data computation module 9 is connected with described display 10, the data after calculating can be shown by described display 10.
Data acquisition module 7 is for being undertaken gathering and being converted to digital signal by the data than conductivity sensor, hydrogen conductivity sensor and dissolved oxygen sensor.
Communication module 8 sends to data computation module 9 for the digital signal after being changed by data acquisition module 7.
Data computation module 9 is that digital signal calculates for being sent by communication module 8, by each data by after certain formulae discovery, obtains pH value.Afterwards, then pH value is sent to display 10, shown by display 10.
Be preferred embodiment that described data acquisition module 7 is A/D converter.
AD conversion is exactly analog to digital conversion.As its name suggests, exactly simulating signal is converted to digital signal.Simulating signal can be the electric signal such as voltage, electric current, also can be the non-electrical signals such as pressure, temperature, humidity, displacement, sound.But before A/D conversion, the input signal being input to A/D converter must convert voltage signal through various sensor to various physical quantity.
The signal that each sensor collects is respectively than conductance, hydrogen conductance and dissolved oxygen DO, and its signal differs, and is unfavorable for the calculating of data computation module 9.And in order to can conveniently calculate, need it to be all converted into a signal, its digital signal, can be calculated by simple numeral like this, convenient and simple practicality.
In the present embodiment, data acquisition module 7 is set to AD converter, the signal be convenient to each sensor detects is converted to digital signal.
Be preferred embodiment described multiparameter Displaying Meter 3 is provided with the connecting line 11 be communicated with DCS.
DCS is the english abbreviation (DistributedControlSystem) of dcs, and automatic control industry is at home referred to as Distributed Control System (DCS) again.Be a kind of novel computer control system for Centralized Control System, it is development on the basis of Centralized Control System, develops and come.
It is one, and what be made up of process control level and process monitoring level take communication network as the multi-level computer system of tie, combine computing machine, the 4C technology such as communication, display and control, its basic thought is that decentralised control, centralized operation, differentiated control, flexible configuration and configuration are convenient.
Be connected with DCS by multiparameter Displaying Meter 3, the monitor and forecast while of being undertaken by the circuit of DCS to each galley proof water, be further simplify the work to sample water monitoring, makes work more simple and convenient, and can reduce cost of labor further.
Be preferred embodiment be provided with positive resin in described hydrogen post 2, for carrying out positive resin exchange with sample water.
The full name of positive resin is Zeo-karb, has exchange capacity high, and exchange velocity is fast, the features such as physical strength is good, is particularly suitable for preparing the soft water of boiler of feeding use and the preparation of pure water.
The chemical multiparameter on-line monitoring instrument that the utility model provides, after connecting than conductance flow cell 1, hydrogen post 2, hydrogen conductance flow cell 4, dissolved oxygen DO flow cell 5, sample water is monitored, the data obtained pass to multiparameter Displaying Meter 3 again, pH value is calculated by multiparameter Displaying Meter 3 by the data by monitoring, do not need online pH value table is installed, structure is simple and convenient, can economize on water, reduce investment cost and maintenance cost, and the level of robotization and operational management can be improved.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a chemical multiparameter on-line monitoring instrument, is characterized in that, comprises multiparameter Displaying Meter, than conductance flow cell, hydrogen post, hydrogen conductance flow cell and dissolved oxygen DO flow cell;
Describedly to connect successively than conductance flow cell, described hydrogen post, described hydrogen conductance flow cell and described dissolved oxygen DO flow cell;
Described multiparameter Displaying Meter is connected than conductance flow cell, described hydrogen conductance flow cell and described dissolved oxygen DO flow cell with described respectively, the described parameter obtained than conductance flow cell, described hydrogen conductance flow cell and described dissolved oxygen DO flow cell can be carried out calculating rear display.
2. chemical multiparameter on-line monitoring instrument according to claim 1, is characterized in that, described multiparameter Displaying Meter is also connected with pH value electrode.
3. chemical multiparameter on-line monitoring instrument according to claim 1, is characterized in that, is describedly provided with conductivity sensor than on conductance flow cell.
4. chemical multiparameter on-line monitoring instrument according to claim 1, is characterized in that, described dissolved oxygen DO flow cell is provided with dissolved oxygen sensor.
5. chemical multiparameter on-line monitoring instrument according to claim 1, it is characterized in that, described multiparameter Displaying Meter comprises display and data processor;
Described data processor is connected than conductance flow cell, described hydrogen conductance flow cell and described dissolved oxygen DO flow cell with described respectively;
Described display is connected with described data processor, and the data after described data processor can being calculated show.
6. chemical multiparameter on-line monitoring instrument according to claim 5, it is characterized in that, described display is liquid crystal display.
7. chemical multiparameter on-line monitoring instrument according to claim 5, it is characterized in that, described data processor comprises data acquisition module, communication module and data computation module;
Described data acquisition module is connected than conductance flow cell, described hydrogen conductance flow cell and described dissolved oxygen DO flow cell with described respectively;
The data collected are sent in described data computation module by described communication module by described data acquisition module;
Described data computation module is connected with described display, the data after calculating can be shown by described display.
8. chemical multiparameter on-line monitoring instrument according to claim 7, it is characterized in that, described data acquisition module is A/D converter.
9. chemical multiparameter on-line monitoring instrument according to claim 1, is characterized in that, described multiparameter Displaying Meter is provided with the connecting line be communicated with DCS.
10. the chemical multiparameter on-line monitoring instrument according to any one of claim 1-9, is characterized in that, be provided with positive resin in described hydrogen post, for carrying out positive resin exchange with sample water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068323.0U CN205210009U (en) | 2015-12-18 | 2015-12-18 | Chemistry multi -parameter on -line monitoring instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068323.0U CN205210009U (en) | 2015-12-18 | 2015-12-18 | Chemistry multi -parameter on -line monitoring instrument |
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| CN205210009U true CN205210009U (en) | 2016-05-04 |
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| CN201521068323.0U Expired - Fee Related CN205210009U (en) | 2015-12-18 | 2015-12-18 | Chemistry multi -parameter on -line monitoring instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342678A (en) * | 2018-10-11 | 2019-02-15 | 中国船舶重工集团公司第七〇九研究所 | A kind of circulating dynamic check system of dissolved oxygen table |
-
2015
- 2015-12-18 CN CN201521068323.0U patent/CN205210009U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342678A (en) * | 2018-10-11 | 2019-02-15 | 中国船舶重工集团公司第七〇九研究所 | A kind of circulating dynamic check system of dissolved oxygen table |
| CN109342678B (en) * | 2018-10-11 | 2024-01-30 | 中国船舶重工集团公司第七一九研究所 | Dissolved oxygen meter circulating type dynamic verification system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20181218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |