CN104101722B - Entry automatic continuous analysis device and analytical approach thereof in Industrial Boiler water quality detection - Google Patents
Entry automatic continuous analysis device and analytical approach thereof in Industrial Boiler water quality detection Download PDFInfo
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Abstract
The invention discloses entry automatic continuous analysis device and analytical approach thereof in a kind of Industrial Boiler water quality detection, this device it comprise container, potentiometric titrimeter main frame, five electrodes and four liquid feeding unit; These five electrodes are respectively conductance electrode, pH electrode, silver electrode, platinum electrode and calcium electrode, and these four liquid feeding unit are respectively standard acid solution liquid feeding unit, silver nitrate titer liquid feeding unit, standard Potassiumiodate-potassium iodide liquid feeding unit and EDTA titer liquid feeding unit; These five electrodes are placed in this container, the liquid outlet of these four liquid feeding unit is all placed in this container, this potentiometric titrimeter main frame is with five electrode interfaces, these five electrode interfaces are connected respectively conductance electrode, pH electrode, silver electrode, platinum electrode and calcium electrode, the control system that the built-in titration parameters of this potentiometric titrimeter main frame controls and data export.
Description
Technical field
The present invention relates to a kind of water technology, particularly relate to entry automatic continuous analysis device and analytical approach thereof in a kind of Industrial Boiler water quality detection.
Background technology
Industrial Boiler water need keep the basicity of certain numerical value, and object is corrosion in order to slow down metallic conduit and fouling.According to national technical standard, basicity is divided into again phenolphthalein alkalinity and full basicity.PH value, basicity are less than normal, and the metal contacted with water may be caused to produce sour corrosion; Otherwise pH value, basicity are bigger than normal, the metal contacted with water may be caused to produce alkaline corrosion.Industrial Boiler water also needs to control impurity concentration and is no more than limit value, and impurity concentration exceedes limit value, also may accelerate metal erosion, cause fouling.Chlorion is that in all impurity, performance is the most stable, and chlorine ion concentration is convenient to detect, and therefore industrially generally controls impurity concentration to control chlorine ion concentration.Owing to can cause Industrial Boiler oxygen corrosion containing oxygen, sulphite is the most frequently used deoxygenation medicament, and therefore Industrial Boiler water also needs to control inferior sulfate radical concentration.Hardness (calcium, magnesium ion) too high meeting causes the easy fouling of Industrial Boiler, and therefore Industrial Boiler water also needs to control hardness.Dissolved solid represents dissolved matter impurity content in water, usually after measuring conductivity, calculates dissolved solid content admittedly to lead than method.Dissolved solid is larger, and illustrate that the impurity content in water is large, otherwise impurity content is little, therefore Industrial Boiler water detects dissolved solid.
Therefore, in order to slow down corrosion of metal and reduce fouling, GB/T1576 " Industrial Boiler water quality " lists routine monitoring project in the project such as dissolved solid, pH value, phenolphthalein alkalinity, full basicity, chlorine ion concentration, hardness, inferior sulfate radical concentration.
Mostly existing Industrial Boiler water quality inspection technique is to be analyzed by manual inspection or the potentiometric titration of individual event object.Seven projects have detected needs more than one hour consuming time.
Potentiometric titration is that compare with direct potentiometric method, potentiometric titration does not need potential electrode potential value accurately by measuring potential change to determine the method for titration end-point in titration process, and potentiometric titration leans on the hop of electrode potential to indicate titration end-point.
Existing dissolved solid, pH value, phenolphthalein alkalinity, full basicity, chlorion, hardness, inferior sulfate radical testing process are separately carried out separately, and testing process is as follows:
1, dissolved solid measures (admittedly leading than method)
After gathering the testing sample of certain volume, conductance electrode is put into sample, and conductivity can transmit electric potential signal to main frame, and main frame, after electric potential signal conversion, demonstrates the conductivity value of sample.According to admittedly leading ratio, calculate the content of dissolved solid.
2, pH value measures
After gathering the testing sample of certain volume, pH electrode is put into sample, and sample pH can transmit electric potential signal to main frame, and main frame, after electric potential signal conversion, demonstrates the pH value of sample.
3, phenolphthalein alkalinity and full Basicity Determination
After gathering the testing sample of certain volume, pH electrode is put into sample, in sample, drips sulfuric acid standard solution, until pH drops to a threshold value, calculate basicity value with testing sample volume, standard acid consumption volume and concentration.Limit value is set as that the result of pH value 8.0-8.3 is phenolphthalein alkalinity, and limit is set as that the result of pH value 4.0-4.3 is full basicity.
4, determination of chloride ion
After gathering the testing sample of certain volume, regulate sample pH to neutral or acid, drip the potentiometric titration that silver nitrate standard solution carries out chlorion in solution, until hop point occurs, titration stops.Chlorine ion concentration value is calculated with testing sample volume, silver nitrate standard solution consumption volume and concentration thereof.
5, Determination of Hardness
After gathering the testing sample of certain volume, regulate sample pH to 10.0 ± 0.1, using eriochrome black T as indicator, in solution, drip disodium ethylene diamine tetraacetate (EDTA) standard solution until solution is terminal in blueness.Hardness number is calculated with testing sample volume, EDTA standard solution consumption volume and concentration thereof.
6, sulfite determination
After gathering the testing sample of certain volume, add 1mL starch indicator and 1mL hydrochloric acid solution (1+1), shake up.Be titrated to micro-blueness with Potassiumiodate-potassium iodide standard solution, be titration end-point.Inferior sulfate radical concentration value is calculated with testing sample volume, Potassiumiodate-potassium iodide standard solution consumption volume and concentration thereof.
Mostly existing Industrial Boiler water quality inspection technique is according to national standard method, seven projects are respectively according to GB/T6904-2008 the mensuration of pH value " in industrial circulating cooling water and the boiler feed water ", the mensuration of GB/T1576-2008 " Industrial Boiler water quality " annex H basicity, the indirect determination of GB/T1576-2008 " Industrial Boiler water quality " annex E pot water dissolved solid, the mensuration (iodimetric titration) of GB/T1576-2008 " Industrial Boiler water quality " annex I sulphite, GB/T6909-2009 " mensuration of boiler feed water and chilled water analytical approach hardness ", GB/T15453-2008 " industrial circulating cooling water and boiler feed water in chloride ion conductor " independent detection.Skilled testing staff is single completes seven projects, needs more than 1 hour consuming time, and not only detection efficiency is low and there is many limitations.As by indicator and color change acuity, by precipitation adsorption, disturb by strict pH titration environment and various anions and canons, by the impact etc. of the manual titration human factor of analyst.
Summary of the invention
One of technical matters that patent of the present invention will solve is, above-mentioned when detecting the dissolved solid of Industrial Boiler water, pH value, phenolphthalein alkalinity, full basicity, chlorine ion concentration, hardness, inferior sulfate radical concentration for prior art, the defect that prior art efficiency is lower, there is provided entry automatic continuous analysis device and analytical approach thereof in a kind of Industrial Boiler water quality detection, its test item comprises dissolved solid, pH value, phenolphthalein alkalinity, full basicity, chlorine ion concentration, hardness and inferior sulfate radical concentration.
The present invention solves this technical problem adopted technical scheme: entry automatic continuous analysis device in a kind of Industrial Boiler water quality detection, and it comprises container, potentiometric titrimeter main frame, five electrodes and four liquid feeding unit; These five electrodes are respectively conductance electrode, pH electrode, silver electrode, platinum electrode and calcium electrode, and these four liquid feeding unit are respectively standard acid solution liquid feeding unit, silver nitrate titer liquid feeding unit, standard Potassiumiodate-potassium iodide liquid feeding unit and EDTA titer liquid feeding unit; These five electrodes are placed in this container, the liquid outlet of these four liquid feeding unit is all placed in this container, this potentiometric titrimeter main frame is with five electrode interfaces, these five electrode interfaces are connected respectively conductance electrode, pH electrode, silver electrode, platinum electrode and calcium electrode, the control system that the built-in titration parameters of this potentiometric titrimeter main frame controls and data export.
Further, this potentiometric titrimeter main frame also comprises a communication interface be connected with computing machine, and this control system is connected with computing machine by this communication interface.
Further, also comprise for accommodating and fix the electrode protection unit of these five electrodes.
Further, also comprise the titration platform being provided with stirrer, this container is placed on this titration platform.
Particularly, this container is measuring cup.
As another object of the present invention, additionally provide a kind of entry automatic continuous analysis method in Industrial Boiler water quality detection, its step is as follows successively:
A, gather the conductivity of sample by conductance electrode;
B, closedown conductance electrode, open pH electrode and standard acid solution liquid feeding unit, carries out phenolphthalein alkalinity titration and full basicity titration to this sample, and image data;
C, closedown pH electrode, open silver electrode and silver nitrate titer liquid feeding unit, carry out chlorion potentiometric titration in the sample of completing steps b, and image data;
D, closedown silver electrode, open platinum electrode, standard acid solution liquid feeding unit and standard Potassiumiodate-potassium iodide liquid feeding unit, after the sample acidifying of completing steps c, carry out inferior sulfate radical potentiometric titration, and image data; E, closedown platinum electrode, open calcium electrode and EDTA titer liquid feeding unit, carry out hardness potentiometric titration after the pH of the sample of completing steps d is adjusted to 10, and image data.
Preferably, the standard acid solution in this standard acid solution liquid feeding unit is sulfuric acid standard solution, and the concentration of sulfuric acid standard solution is C
1/2H2SO4=0.1000mol/L; The titer of the silver nitrate titer in this silver nitrate titer liquid feeding unit is T=3.34mg/mL; The titer of the Potassiumiodate-potassium iodide titer in this standard Potassiumiodate-potassium iodide liquid feeding unit is T=1.0mg/mL; The titer of the EDTA titer in this EDTA titer liquid feeding unit is T=0.1mol/L.
Compared with prior art, good effect of the present invention be the present invention seven independently testing process comprehensively become a testing process, after realizing primary sample, complete the detection of conductivity (dissolved solid), pH value, phenolphthalein alkalinity, full basicity, chlorine ion concentration, inferior sulfate radical concentration, hardness successively.Whole test process is consuming time foreshorten to ten minutes within.This characteristic feature of an invention improves detection efficiency, reduces person works's amount, save sample consumption and standard items consumption simultaneously.
Below in conjunction with drawings and Examples, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is entry automatic continuous analysis device schematic diagram in Industrial Boiler water quality detection of the present invention.
Fig. 2 is the analytical approach process flow diagram that the present invention analyzes dissolved solid, pH value, phenolphthalein alkalinity, full basicity, chlorine ion concentration, inferior sulfate radical concentration, hardness continuously.
Fig. 3 is the phenolphthalein alkalinity titration curve of embodiment.
Fig. 4 is the full basicity titration curve of embodiment.
Fig. 5 is the chlorion titration curve of embodiment.
Fig. 6 is the Hardness Titration curve of embodiment.
Wherein, 1-standard acid solution liquid feeding unit; 2-silver nitrate titer liquid feeding unit; 3-standard Potassiumiodate-potassium iodide liquid feeding unit; 4-EDTA titer liquid feeding unit; 5-conductance electrode; 6-pH electrode; 7-silver electrode; 8-calcium electrode; 9-platinum electrode.
Embodiment
Embodiment
As shown in Figure 1, entry automatic continuous analysis device in the Industrial Boiler water quality detection of the present embodiment, it comprises container, potentiometric titrimeter main frame, five electrodes, four liquid feeding unit and titration platforms; These five electrodes are respectively conductance electrode 5, pH electrode 6, silver electrode 7, platinum electrode 9 and calcium electrode 8, and these four liquid feeding unit are respectively standard acid solution liquid feeding unit 1, silver nitrate titer liquid feeding unit 2, standard Potassiumiodate-potassium iodide liquid feeding unit 3 and EDTA titer liquid feeding unit 4.
This container is placed on titration platform, and titration platform is provided with stirrer.These five electrodes are placed in container, for the data of sample in collection container.The liquid outlet of these four liquid feeding unit is all placed in container, to container liquid feeding.This potentiometric titrimeter main frame is with five electrode interfaces and a communication interface be connected with computing machine, these five electrode interfaces are connected respectively conductance electrode 5, pH electrode 6, silver electrode 7, platinum electrode 9 and calcium electrode 8, it gathering real-time pH value in conductivity data, collection sample initial pH value and phenolphthalein alkalinity and full basicity titration process to being applied to respectively, gathering silver electrode 7 potential value of chlorion potentiometric titration process, gathering platinum electrode 9 current potential of inferior sulfate radical potentiometric titration process, and gathers calcium electrode 8 current potential in hardness potentiometric titration process.The control system that the built-in titration parameters of this potentiometric titrimeter main frame controls and data export.Preferably, the potentiometric titrimeter main frame model of described this control system built-in is Metrohm 905 Titrando.Control system is connected with computing machine by communication interface, even if obtained phenolphthalein alkalinity titration, full basicity titration, chlorion potentiometric titration, inferior sulfate radical potentiometric titration, hardness Potentiometric Data are shown and make data processing on computing machine, even if comprise the display of the titration curve figure of Fig. 3, Fig. 4, Fig. 5 and Fig. 6.
Preferably, this container is the measuring cup of the sample of accommodating setting volume to the present embodiment.
This device also comprises accommodating respectively after analysis and the electrode protection unit of fixed electorde.After analysis, with accommodating respectively after each electrode of distilled water flushing and be fixed in this electrode protection unit.
As shown in Figure 2, entry automatic continuous analysis method in the Industrial Boiler water quality detection of the present embodiment, its analytic target is Industrial Boiler water, analyze its dissolved solid, pH value, phenolphthalein alkalinity, full basicity, chlorine ion concentration, inferior sulfate radical concentration, hardness, specific analytical method comprises the following steps:
A, be fixed on the titration platform of potentiometric titrimeter by the container that setting volume sample is housed, conductance electrode 5 gathers the conductivity of sample.
B, closedown conductance electrode 5, open pH electrode 6 and standard acid solution liquid feeding unit 1.PH electrode 6 gathers the initial pH value of sample and the real-time pH value of basicity titration process, and basicity titration is carried out successively: phenolphthalein alkalinity titration, and its titration end-point pH is 8.0-8.3; And full basicity titration, its titration end-point pH is 4.0-4.3, when arriving titration end-point, read the standard acid solution phenolphthalein alkalinity volumetric solution volume in standard acid solution liquid feeding unit 1 and full basicity volumetric solution volume respectively, calculate phenolphthalein alkalinity and full basicity, the initial pH value that pH electrode 6 gathers is the pH value of sample; Standard acid solution refers to the acid solution of concentration known, and preferably, standard acid solution is sulfuric acid standard solution to the present embodiment, and the concentration of sulfuric acid standard solution is C
1/2H2SO4=0.1000mol/L.Standard acid solution also can be nitric acid standard solution.
C, closedown pH electrode 6 open silver electrode 7, in the sample that above-mentioned full basicity titration is complete, chlorion potentiometric titration is carried out with silver nitrate titer liquid feeding unit 2, silver electrode 7 gathers silver electrode 7 electrode potential value in chlorion potentiometric titration process, chlorion potentiometric titration is dynamic titration, titration end-point is the hop point of silver electrode 7 current potential, when reading titration end-point, the consumption volume of silver nitrate titer in silver nitrate titer liquid feeding unit 2, calculates chlorine ion concentration.Silver nitrate titer refers to the liquor argenti nitratis ophthalmicus of concentration known or titer, and in the present embodiment, the titer of silver nitrate titer is T=3.34mg/mL.
D, closedown silver electrode 7, open platinum electrode 9, standard acid solution liquid feeding unit and standard Potassiumiodate-potassium iodide liquid feeding unit 3.Detect in complete sample to above-mentioned chlorine ion concentration and add 20mL standard acid solution, acidifying is carried out to sample.Inferior sulfate radical potentiometric titration is carried out with in the standard Potassiumiodate-sample of potassium iodide liquid feeding unit 3 after acidifying, platinum electrode 9 gathers platinum electrode 9 potential value in sulphurous acid potentiometric titration process, inferior sulfate radical potentiometric titration is dynamic titration, titration end-point is the hop point of platinum electrode 9 current potential, when reading titration end-point, the consumption volume of Potassiumiodate-potassium iodide titer in standard iodine acid potassium-potassium iodide liquid feeding unit 3, calculates inferior sulfate radical concentration.Potassiumiodate-potassium iodide titer refers to the Potassiumiodate-liquor kalii iodide of concentration known or titer, and in the present embodiment, the titer of Potassiumiodate-potassium iodide titer is T=1.0mg/mL.
E, closedown platinum electrode 9, open calcium electrode 8 and EDTA titer liquid feeding unit 4.In the sample that above-mentioned inferior sulfate radical Concentration Testing is complete, add proper volume ammoniacal liquor buffer solution, make the pH of sample reach 10.In the sample of pH=10, hardness potentiometric titration is carried out with EDTA titer liquid feeding unit 4, calcium electrode 8 gathers calcium electrode 8 potential value in EDTA potentiometric titration process, hardness potentiometric titration is static titration, titration end-point is the hop point of calcium electrode 8 current potential, when reading titration end-point, the consumption volume of EDTA titer in EDTA titer liquid feeding unit 4, calculates hardness.EDTA titer refers to the EDTA solution of concentration known or titer, and in the present embodiment, the titer of EDTA titer is T=0.1mol/L.
Carry out setting parameter before analysis, be specially:
Conductance measurement optimum configurations:
PH value, basicity titration parameters are arranged: setting endpoint titration pattern (SET pH) (1) starts condition: the initial pH value gathering sample; Signal drift: close; Stand-by period: 10s; Suspend 20s.(2) phenolphthalein alkalinity titration: setting titration end-point is pH=8.3; Dynamic titration, range of control is 2pH; Maximum liquid feeding speed 10mL/min; Minimum liquid feeding speed 25 μ L/min; Stopping criterion: drift about 50 μ L/min.(3) full basicity titration: setting titration end-point is pH=4.2; Dynamic titration, range of control is 1.5pH; Maximum liquid feeding speed 5mL/min; Minimum liquid feeding speed 25; Stopping criterion: drift about 50 μ L/min; The measurement point time interval: 2.0s.Temperature 25 DEG C.
Chlorion titration parameters is arranged: dynamically titration mode (DET U): (1) starts condition: initial measurement signal drift closes, minimum latency 5s, maximum latency 10s, liquid feeding speed 5mL/min; (2) titration parameters: accept measured value signal drift 30mV/min, minimum latency 2s, maximum latency 20s; Measurement point density 4; Smallest incremental 10 μ L, maximal increment closes, maximal value liquid feeding speed; (3) titration end-point: first hop point of silver electrode current potential.
Nitrite anions titration parameters is arranged: dynamically titration mode (DET U): (1) starts condition: initial measurement signal drift closes, minimum latency 5s, maximum latency 10s, liquid feeding speed 5mL/min; (2) titration parameters: accept measured value signal drift 30mV/min, minimum latency 2s, maximum latency 20s; Measurement point density 4; Smallest incremental 10 μ L, maximal increment closes, maximal value liquid feeding speed; (3) titration end-point: first hop point of platinum electrode current potential.
Hardness Titration optimum configurations: static titration mode (MET U): (1) starts condition: initial measurement signal drift closes, minimum latency 5s, maximum latency 10s, liquid feeding speed 5mL/min; (2) titration parameters: accept measured value signal drift 30mV/min, minimum latency 2s, maximum latency 20s; Measurement point density 4; Smallest incremental 10 μ L, maximal increment closes, maximal value liquid feeding speed; (3) titration end-point: first hop point of calcium electrode current potential.
The computing formula of the present embodiment is:
PH value (25 DEG C)=pH electrode gathers the initial pH value of sample.(1-1)
Phenolphthalein alkalinity, mmol/L:
Wherein, V
1---the volumetric solution volume (mL) of sulfuric acid standard solution in phenolphthalein alkalinity titration,
V
s---the setting volume of sample is also sample volume (mL),
---the concentration (mol/L) of sulfuric acid standard solution.
Full basicity, mmol/L:
Wherein, V
2---the volumetric solution volume (mL) of sulfuric acid standard solution in full basicity titration,
V
s---the setting volume of sample is also sample volume (mL),
---the concentration (mol/L) of sulfuric acid standard solution.
Chlorine ion concentration [Cl
-], mg/L:
Wherein: V
01---reagent blank (mL),
V
3---the consumption volume (mL) of silver nitrate titer,
T
1---the titer (mg/mL) of silver nitrate titer,
V
s---the setting volume of sample is also sample volume (mL).
Inferior sulfate radical concentration [SO
3 2-], mg/L:
Wherein: V
02---reagent blank (mL),
V
4---the consumption volume (mL) of Potassiumiodate-potassium iodide titer,
T
2---the titer (mg/mL) of Potassiumiodate-potassium iodide titer,
V
s---the setting volume of sample is also sample volume (mL).
Hardness, mmol/L:
Wherein: V
03---reagent blank (mL),
V
5---the consumption volume (mL) of Potassiumiodate-potassium iodide titer,
T
3---the titer (mg/mL) of Potassiumiodate-potassium iodide titer,
V
s---the setting volume of sample is also sample volume (mL).
Further, detecting analytic process is: measure sample that 80mL mixes in measuring cup, sulfuric acid concentration of standard solution is
silver nitrate standard solution titer is the reagent blank V of T=3.34mg/mL, silver nitrate
0=0.010mL, sulfuric acid standard solution, silver nitrate standard solution, Potassiumiodate-potassium iodide standard solution, EDTA standard solution are added different liquid feeding unit respectively, conductance electrode, pH electrode, silver electrode, platinum electrode, calcium electrode are arranged on titration platform, titration platform there is stirrer, starts titration.Adopt 2 replicate determinations in the present embodiment, the data of 2 parallel titration are in table 1:
Table 1 potentiometric titration detects data
According to the determination data of table 1, according to the computing formula of above-mentioned (1-1), (1-2), (1-3), (1-4), (1-5) and (1-6), calculate.The result of calculation of twice replicate determination is in table 2:
Table 2 measurement result
The present invention is not limited to above-mentioned embodiment, if do not depart from the spirit and scope of the present invention to various change of the present invention or modification, if these are changed and modification belongs within claim of the present invention and equivalent technologies scope, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. an entry automatic continuous analysis device in Industrial Boiler water quality detection, is characterized in that: it comprises container, potentiometric titrimeter main frame, five electrodes and four liquid feeding unit; These five electrodes are respectively conductance electrode, pH electrode, silver electrode, platinum electrode and calcium electrode, and these four liquid feeding unit are respectively standard acid solution liquid feeding unit, silver nitrate titer liquid feeding unit, standard Potassiumiodate-potassium iodide liquid feeding unit and EDTA titer liquid feeding unit;
These five electrodes are placed in this container, the liquid outlet of these four liquid feeding unit is all placed in this container, this potentiometric titrimeter main frame is with five electrode interfaces, these five electrode interfaces are connected respectively conductance electrode, pH electrode, silver electrode, platinum electrode and calcium electrode, the control system that the built-in titration parameters of this potentiometric titrimeter main frame controls and data export.
2. entry automatic continuous analysis device in Industrial Boiler water quality detection as claimed in claim 1, it is characterized in that: this potentiometric titrimeter main frame also comprises a communication interface be connected with computing machine, this control system is connected with computing machine by this communication interface.
3. entry automatic continuous analysis device in Industrial Boiler water quality detection as claimed in claim 1, is characterized in that: also comprise for accommodating and fix the electrode protection unit of these five electrodes.
4. entry automatic continuous analysis device in Industrial Boiler water quality detection as claimed in claim 1, it is characterized in that: also comprise the titration platform being provided with stirrer, this container is placed on this titration platform.
5. entry automatic continuous analysis device in Industrial Boiler water quality detection as claimed in claim 1, is characterized in that: this container is measuring cup.
6. utilize an analytical approach for entry automatic continuous analysis device in Industrial Boiler water quality detection described in claim 1, it is characterized in that, its step is as follows successively:
A, gather the conductivity of sample by conductance electrode;
B, closedown conductance electrode, open pH electrode and standard acid solution liquid feeding unit, carries out phenolphthalein alkalinity titration and full basicity titration to this sample, and image data;
C, closedown pH electrode, open silver electrode and silver nitrate titer liquid feeding unit, carry out chlorion potentiometric titration in the sample of completing steps b, and image data;
D, closedown silver electrode, open platinum electrode, standard acid liquid feeding unit and standard Potassiumiodate-potassium iodide liquid feeding unit, after the sample acidifying of completing steps c, carry out inferior sulfate radical potentiometric titration, and image data;
E, closedown platinum electrode, open calcium electrode and EDTA titer liquid feeding unit, carry out hardness potentiometric titration after the pH of the sample of completing steps d is adjusted to 10, and image data.
7. utilize the analytical approach of entry automatic continuous analysis device in described Industrial Boiler water quality detection as claimed in claim 6, it is characterized in that: the standard acid solution in this standard acid solution liquid feeding unit is sulfuric acid standard solution, and the concentration of sulfuric acid standard solution is
8. utilize the analytical approach of entry automatic continuous analysis device in described Industrial Boiler water quality detection as claimed in claim 6, it is characterized in that: the titer of the silver nitrate titer in this silver nitrate titer liquid feeding unit is T=3.34mg/mL.
9. utilize the analytical approach of entry automatic continuous analysis device in described Industrial Boiler water quality detection as claimed in claim 6, it is characterized in that: the titer of the Potassiumiodate-potassium iodide titer in this standard Potassiumiodate-potassium iodide liquid feeding unit is T=1.0mg/mL.
10. utilize the analytical approach of entry automatic continuous analysis device in described Industrial Boiler water quality detection as claimed in claim 6, it is characterized in that: the titer of the EDTA titer in this EDTA titer liquid feeding unit is T=0.1mol/L.
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| CN201410336615.1A CN104101722B (en) | 2014-07-15 | 2014-07-15 | Entry automatic continuous analysis device and analytical approach thereof in Industrial Boiler water quality detection |
| PCT/CN2015/083420 WO2016008369A1 (en) | 2014-07-15 | 2015-07-07 | Multiple item continuous automatic analysis apparatus for industrial boiler water quality testing and analysis method therefor |
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| CN104101722B (en) * | 2014-07-15 | 2015-09-30 | 广州特种承压设备检测研究院 | Entry automatic continuous analysis device and analytical approach thereof in Industrial Boiler water quality detection |
| CN105181889B (en) * | 2015-09-30 | 2017-08-01 | 王竞 | A kind of liquid analysis method and device of use potentiometric titration |
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