CN1479100A - Fast determination method of suspended iron particle in water - Google Patents
Fast determination method of suspended iron particle in water Download PDFInfo
- Publication number
- CN1479100A CN1479100A CNA021366705A CN02136670A CN1479100A CN 1479100 A CN1479100 A CN 1479100A CN A021366705 A CNA021366705 A CN A021366705A CN 02136670 A CN02136670 A CN 02136670A CN 1479100 A CN1479100 A CN 1479100A
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- water
- iron
- filter membrane
- data processing
- sampler
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Abstract
A high-speed detection method for the granular iron suspended in water includes such steps as sampling, preparing membrane, scanning specimen membrane, and processing data. Its advantages are high analyzing speed (5-10 min), no need of chemical reagent, and simple operation.
Description
Technical field
The present invention relates to the rapid assay methods of graininess suspension iron in a kind of water, particularly in the high PH water of fuel-burning power plant and nuclear power plant's therrmodynamic system, the rapid assay methods of suspension iron content.
Background technology
The content of iron must be less than certain value in the requirement water when Power Plant started, condensate water could reclaim, unit just can generate electricity by way of merging two or more grid systems, so the speed of iron-holder finding speed directly has influence on putting into operation the time of unit in the water, during startup in the water iron mainly exist with the iron of suspension, existing assay method all is earlier through pre-service in about 30 minutes the iron of solid-state suspension to be converted into the iron of ionic state, then with spectrophotometric method or aas determination.This time that just makes whole analytical test is at 30-40 minute, and this has just postponed time of generating electricity by way of merging two or more grid systems, and causes very big waste.
Summary of the invention
The objective of the invention is provides a kind of direct usefulness to leach granular iron and carries out method for measuring in order to overcome the preprocessing process that the iron that must make suspension in the existing method is converted into ionic state iron.
The step of assay method of the present invention is:
1, sampler is connected on respectively feedwater, coagulate the thief hatch of sample such as water receiving;
2, select sampling volume, water enters the system bellows that sets in advance, and filter through film filter and flow into container,
When water reaches the preliminary election sampling volume, stop into water, the taking-up filter membrane discharges water;
3, filter membrane after drying is placed on the scanner interscan, the data input data processing dress that scanning obtains
Put, by obtaining iron-holder, FeO in certain water volume after the data processing equipment data processing
3And FeO
4
Ratio and other data.
Because the whole mensuration process of this method is avoided chemico-analytic decomposed sample step, its remarkable advantage is: analysis speed is fast, and The whole analytical process only needs 5～10 minutes, and existing spectrophotometric method and atomic absorption method just need 30 minutes on water sample decomposes; Analysis operation is simple, is easy to grasp, and all analytical procedure was finished by sampling system film, scanning sample film and three steps of data processing, and not only the personnel of chemical analysis specialty can operate, and general operations staff also can easily grasp; The whole analytical process does not need any chemical reagent, need not heat and dissolve; And easily be automated.
Description of drawings
Fig. 1 is apparatus of the present invention block diagram.
Embodiment
Enforcement of the present invention starts site test in conjunction with a Power Plant and does an explanation.As shown in Figure 1, sampler adopts the patent " sampler that graininess suspension iron is measured in the water " of having applied in the present embodiment, and data processing equipment adopts " fast iron is measured 2.1 editions " by the court's development.The step that Power Plant starts site test is: 1. " sampling apparatus that graininess suspension iron is measured in the water " is connected on the thief hatch of feedwater, condensate water respectively, connects the 220V power supply, power light is bright, and water is discharged from by-pass port; 2. selection volume of water sample, during beginning in the machine set system amount of iron higher, selects 0.5 liter, when 1 liter of the selection during less than 1000 μ g/L of the content of iron; 3. press the mensuration key, it is bright to measure pilot lamp, and bypass valve cuts out, and main road opening of valves, water enter the system bellows, and film filter adopts 0.45 μ m miillpore filter, and water flows into measuring vessel after through 0.45 μ m filter membrane; 4. when the volume of water reaches setting value, close the main road valve automatically, open water drain valve, take out filter membrane; 5. filter membrane is placed on drying on the electric hot plate, is placed in the scanner; 6. log-on data treating apparatus " fast iron is measured 2.1 editions " draws " scanning " menu by " preview " key, and the position of film is determined in scanner work preview, presses the Reset button zeroing, by " scanning " key scanning filter membrane; 7. pull out " option " menu, click " sample setting ", reader group # and analyst's job number after the dialog box occur; In " option " menu, click " analyze and be provided with ", occur selecting to analyze radius and volume of water sample after the dialog box; Press the analysis icon, workstation is analyzed the each point in the selected analysis radius, provides iron content, Fe
2O
3And Fe
3O
4Ratio and the sampling of analyzing always count.8. pull out form by unit and startup date.
Claims (1)
1, the rapid assay methods of graininess suspension iron in a kind of water is characterized in that it may further comprise the steps:
(1) sampler is connected on respectively feedwater, coagulate the thief hatch of detected water sample such as water receiving;
(2) select sampling volume on sampler, water enters the system bellows that sets in advance, warp
Film filter filters and flows into container, when water reaches the preliminary election sampling volume, stops into
Water, the taking-up filter membrane discharges water;
(3) filter membrane after drying is placed on the scanner interscan, the data input number that scanning obtains
According to treating apparatus, by obtaining in certain water volume after the data processing equipment data processing
Iron-holder, FeO
3And FeO
4Ratio and other data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021366705A CN1479100A (en) | 2002-08-27 | 2002-08-27 | Fast determination method of suspended iron particle in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021366705A CN1479100A (en) | 2002-08-27 | 2002-08-27 | Fast determination method of suspended iron particle in water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1479100A true CN1479100A (en) | 2004-03-03 |
Family
ID=34146605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021366705A Pending CN1479100A (en) | 2002-08-27 | 2002-08-27 | Fast determination method of suspended iron particle in water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1479100A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931380A (en) * | 2015-06-12 | 2015-09-23 | 国网河南省电力公司电力科学研究院 | Method and device for measuring non-soluble iron content of thermodynamic system of thermal power plant unit |
| CN108051403A (en) * | 2017-12-27 | 2018-05-18 | 合肥睿致新科技有限公司 | A kind of wastewater recycle device |
| WO2023083099A1 (en) * | 2021-11-10 | 2023-05-19 | 西安热工研究院有限公司 | Method and apparatus for assessing boiler lay-up protection anti-corrosion effect of thermal power unit |
-
2002
- 2002-08-27 CN CNA021366705A patent/CN1479100A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931380A (en) * | 2015-06-12 | 2015-09-23 | 国网河南省电力公司电力科学研究院 | Method and device for measuring non-soluble iron content of thermodynamic system of thermal power plant unit |
| CN104931380B (en) * | 2015-06-12 | 2018-01-02 | 国网河南省电力公司电力科学研究院 | A kind of thermal power plant unit thermodynamic system non-solubility Methods For The Determination of Iron and device |
| CN108051403A (en) * | 2017-12-27 | 2018-05-18 | 合肥睿致新科技有限公司 | A kind of wastewater recycle device |
| WO2023083099A1 (en) * | 2021-11-10 | 2023-05-19 | 西安热工研究院有限公司 | Method and apparatus for assessing boiler lay-up protection anti-corrosion effect of thermal power unit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |