CN102778450A - Method for measuring components of sediment of flame tube of gas turbine - Google Patents
Method for measuring components of sediment of flame tube of gas turbine Download PDFInfo
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- CN102778450A CN102778450A CN2012101745544A CN201210174554A CN102778450A CN 102778450 A CN102778450 A CN 102778450A CN 2012101745544 A CN2012101745544 A CN 2012101745544A CN 201210174554 A CN201210174554 A CN 201210174554A CN 102778450 A CN102778450 A CN 102778450A
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- machine burner
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Abstract
The invention relates to a method for measuring components of a sediment of a flame tube of a gas turbine. The components are measured at one time by inductively coupled plasma atomic emission spectrometry, the sediment of the flame tube of the gas turbine and lithium borate are mixed, the mixture is placed into a muffle furnace, temperature of the mixture is gradually raised to 900 to 950 DEG C from the room temperature so that the mixture is melted, the melt is soaked in a single acidic solution, heated and stirred, and after the melt is treated by nitrohydrochloric acid, the melt is measured at one time by inductively coupled plasma atomic emission spectrometry to obtain the components of the sediment. Compared with the prior art, the method has the advantages of low detection limit, high accuracy and precision, high analysis speed, wide linearity range, capability of simultaneously measuring many elements and spectral lines, and the like.
Description
Technical field
The present invention relates to a kind of method for measuring components, especially relate to a kind of method of measuring combustion machine burner inner liner sediment composition.
Background technology
Be for the mensuration of burner inner liner sediment chemical element at present and after measuring on the pertinent instruments, obtaining a result after making it to become solution after the pre-service, it is to measure inevitable process that solid deposits is processed into solution; General method pre-service need divide to different elements to be measured respectively several times again; Said method is more loaded down with trivial details; Also relative complex operates; Therefore, need a kind of mode of using two steps an of pre-service to carry out and solve sediment dissolving back method for measuring, and can once measure the method for measuring components that obtains the result at ICP-AES.
Summary of the invention
The object of the invention be exactly provide in order to overcome the defective that above-mentioned prior art exists that a kind of detection limit is low, the method for accuracy and the mensuration combustion machine burner inner liner sediment composition that precision is high, analysis speed is fast, the range of linearity is wide.
The object of the invention can be realized through following technical scheme:
A kind of method of measuring combustion machine burner inner liner sediment composition, this method adopt ICP-AES once to measure, and specifically may further comprise the steps:
The sediment that (1) will fire the machine burner inner liner mixes with lithium borate and places platinum crucible, and on potpourri, covers one deck lithium borate again;
(2) place muffle furnace progressively to be warming up to 900～950 ℃ of fusions said mixture, take out behind the maintenance 15min and be cooled to room temperature by room temperature;
(3) will be immersed in the single acid solution through the potpourri that step (2) is handled, be heated to 70～90 ℃, heat while stirring, keep 15min, will dissolve with undissolved potpourri then and be transferred in the glass beaker;
(4) in glass beaker, add chloroazotic acid, continue to be heated to 70～90 ℃ of stirrings, and keep 1～2h, utilize ICP-AES to carry out single-time measurement behind the solution constant volume after will handling, promptly obtain sedimental composition.
Sediment described in the step (1) is milled to particle diameter＜0.2mm.
The mass ratio of sediment described in the step (1) and lithium borate is 1: 10～20.
Single acid solution described in the step (3) is hydrochloric acid solution or salpeter solution, and the concentration of single acid solution is 5～10wt%.
The addition of the chloroazotic acid described in the step (4) and sedimental ratio are 100～200 (volumes): 1 (quality).
ICP-AES is measured to be needed to select suitable spectral line and condition determination: the choice of spectrum principle is not produce interference, tool suitable sensitivity; Comprise in the condition determination that power and atomizer pressure etc. need decide according to different instruments.
Compared with prior art; The present invention is a kind of spectroscopic analysis methods of excitation source with the induction coupled plasma torch; This method has that detection limit is low, accuracy and precision is high, analysis speed is fast, the range of linearity is wide, and multielement and multiline such as measure simultaneously at advantage.Sample promotes the entering spectrometer through the peristaltic pump of sampling system; During through the excitation source plasma flare; Tested element will be excited by moment; From the ground state transition to excited state, then turn back to ground state again rapidly, at this moment different elements will be launched the characteristic light spectral line of different wave length. and the intensity of characteristic light spectral line is directly proportional with the content of element again; The characteristic light spectral line shines on the detecting device after through opticses such as lens, slit, echelle grating, by detecting device the spectrum line and the intensity-conversion thereof of different characteristic is become electric signal output.Can carry out quantitative test like this.
Embodiment
Below in conjunction with specific embodiment the present invention is elaborated.
Embodiment 1
A kind of method of measuring combustion machine burner inner liner sediment composition, this method adopt ICP-AES once to measure, and specifically may further comprise the steps:
The sediment that (1) will fire the machine burner inner liner is polished to particle diameter＜0.2mm, is to mix at 1: 10 to place platinum crucible with lithium borate by mass ratio then, and on potpourri, covers one deck lithium borate again;
(2) place muffle furnace progressively to be warming up to 900 ℃ of fusions said mixture, take out behind the maintenance 15min and be cooled to room temperature by room temperature;
(3) will be immersed in the salpeter solution that concentration is 5wt% through the potpourri that step (2) is handled, be heated to 70 ℃, heat while stirring, keep 15min, will dissolve with undissolved potpourri then and be transferred in the glass beaker;
(4) in glass beaker, add chloroazotic acid; The addition of chloroazotic acid and sedimental ratio are 100 (volumes): 1 (quality); Continue to be heated to 70 ℃ of stirrings, and keep 1h, utilize ICP-AES to carry out single-time measurement behind the solution constant volume after will handling; Promptly obtain sedimental composition, ICP-AES is measured to be needed to select suitable spectral line and condition determination: the choice of spectrum principle is not produce interference, tool suitable sensitivity; Comprise in the condition determination that power and atomizer pressure etc. need decide according to different instruments.
Embodiment 2
A kind of method of measuring combustion machine burner inner liner sediment composition, this method adopt ICP-AES once to measure, and specifically may further comprise the steps:
The sediment that (1) will fire the machine burner inner liner is polished to particle diameter＜0.2mm, is to mix at 1: 15 to place platinum crucible with lithium borate by mass ratio then, and on potpourri, covers one deck lithium borate again;
(2) place muffle furnace progressively to be warming up to 900 ℃ of fusions said mixture, take out behind the maintenance 15min and be cooled to room temperature by room temperature;
(3) will be immersed in the hydrochloric acid solution that concentration is 8wt% through the potpourri that step (2) is handled, be heated to 80 ℃, heat while stirring, keep 15min, will dissolve with undissolved potpourri then and be transferred in the glass beaker;
(4) in glass beaker, add chloroazotic acid; The addition of chloroazotic acid and sedimental ratio are 100 (volumes): 1 (quality); Continue to be heated to 80 ℃ of stirrings, and keep 1h, utilize ICP-AES to carry out single-time measurement behind the solution constant volume after will handling; Promptly obtain sedimental composition, ICP-AES is measured to be needed to select suitable spectral line and condition determination: the choice of spectrum principle is not produce interference, tool suitable sensitivity; Comprise in the condition determination that power and atomizer pressure etc. need decide according to different instruments.
Embodiment 3
A kind of method of measuring combustion machine burner inner liner sediment composition, this method adopt ICP-AES once to measure, and specifically may further comprise the steps:
The sediment that (1) will fire the machine burner inner liner is polished to particle diameter＜0.2mm, is to mix at 1: 20 to place platinum crucible with lithium borate by mass ratio then, and on potpourri, covers one deck lithium borate again;
(2) place muffle furnace progressively to be warming up to 950 ℃ of fusions said mixture, take out behind the maintenance 15min and be cooled to room temperature by room temperature;
(3) will be immersed in the hydrochloric acid solution that concentration is 10wt% through the potpourri that step (2) is handled, be heated to 90 ℃, heat while stirring, keep 15min, will dissolve with undissolved potpourri then and be transferred in the glass beaker;
(4) in glass beaker, add chloroazotic acid; The addition of chloroazotic acid and sedimental ratio are 200 (volumes): 1 (quality); Continue to be heated to 90 ℃ of stirrings, and keep 2h, utilize ICP-AES to carry out single-time measurement behind the solution constant volume after will handling; Promptly obtain sedimental composition, ICP-AES is measured to be needed to select suitable spectral line and condition determination: the choice of spectrum principle is not produce interference, tool suitable sensitivity; Comprise in the condition determination that power and atomizer pressure etc. need decide according to different instruments.
Claims (5)
1. a method of measuring combustion machine burner inner liner sediment composition is characterized in that, this method adopts ICP-AES once to measure, and specifically may further comprise the steps:
The sediment that (1) will fire the machine burner inner liner mixes with lithium borate and places platinum crucible, and on potpourri, covers one deck lithium borate again;
(2) place muffle furnace progressively to be warming up to 900～950 ℃ of fusions said mixture, take out behind the maintenance 15min and be cooled to room temperature by room temperature;
(3) will be immersed in the single acid solution through the potpourri that step (2) is handled, be heated to 70～90 ℃, heat while stirring, keep 15min, will dissolve with undissolved potpourri then and be transferred in the glass beaker;
(4) in glass beaker, add chloroazotic acid, continue to be heated to 70～90 ℃ of stirrings, and keep 1～2h, utilize ICP-AES to carry out single-time measurement behind the solution constant volume after will handling, promptly obtain sedimental composition.
2. a kind of method of measuring combustion machine burner inner liner sediment composition according to claim 1 is characterized in that the sediment described in the step (1) is milled to particle diameter＜0.2mm.
3. a kind of method of measuring combustion machine burner inner liner sediment composition according to claim 1 is characterized in that the mass ratio of sediment described in the step (1) and lithium borate is 1: 10～20.
4. a kind of method of measuring combustion machine burner inner liner sediment composition according to claim 1 is characterized in that the single acid solution described in the step (3) is hydrochloric acid solution or salpeter solution, and the concentration of single acid solution is 5～10wt%.
5. a kind of method of measuring combustion machine burner inner liner sediment composition according to claim 1 is characterized in that the addition of the chloroazotic acid described in the step (4) and sedimental ratio are 100～200 (volumes): 1 (quality).
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| CN2012101745544A CN102778450A (en) | 2012-05-30 | 2012-05-30 | Method for measuring components of sediment of flame tube of gas turbine |
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| CN2012101745544A CN102778450A (en) | 2012-05-30 | 2012-05-30 | Method for measuring components of sediment of flame tube of gas turbine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558208A (en) * | 2013-11-07 | 2014-02-05 | 天津力神电池股份有限公司 | Impurity testing method for nano conductive slurry of lithium ion battery |
| CN112630214A (en) * | 2020-12-16 | 2021-04-09 | 马钢奥瑟亚化工有限公司 | Method for determining content of potassium and sodium in coal tar by ICP-OES |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923016A (en) * | 2009-06-17 | 2010-12-22 | 华东电力试验研究院有限公司 | Blade deposit sediment measuring method for turbine |
| CN101963594A (en) * | 2010-08-13 | 2011-02-02 | 同济大学 | Method for analyzing trace antimony in solid environmental sample |
| US20110134424A1 (en) * | 2009-12-08 | 2011-06-09 | Chan-Jun Park | Method of measuring gadolinia content using inductively coupled plasma-atomic emission spectrometry |
| JP2011149900A (en) * | 2010-01-25 | 2011-08-04 | Dowa Holdings Co Ltd | Method for analysing impurity in cyanoaurate |
-
2012
- 2012-05-30 CN CN2012101745544A patent/CN102778450A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923016A (en) * | 2009-06-17 | 2010-12-22 | 华东电力试验研究院有限公司 | Blade deposit sediment measuring method for turbine |
| US20110134424A1 (en) * | 2009-12-08 | 2011-06-09 | Chan-Jun Park | Method of measuring gadolinia content using inductively coupled plasma-atomic emission spectrometry |
| JP2011149900A (en) * | 2010-01-25 | 2011-08-04 | Dowa Holdings Co Ltd | Method for analysing impurity in cyanoaurate |
| CN101963594A (en) * | 2010-08-13 | 2011-02-02 | 同济大学 | Method for analyzing trace antimony in solid environmental sample |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558208A (en) * | 2013-11-07 | 2014-02-05 | 天津力神电池股份有限公司 | Impurity testing method for nano conductive slurry of lithium ion battery |
| CN112630214A (en) * | 2020-12-16 | 2021-04-09 | 马钢奥瑟亚化工有限公司 | Method for determining content of potassium and sodium in coal tar by ICP-OES |
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Owner name: STATE GRID CORPORATION OF CHINA EAST CHINA RESEARC Free format text: FORMER OWNER: EAST CHINA RESEARCH INSTITUTE OF ELECTRIC POWER EXPERIMENT CO., LTD. Effective date: 20121217 |
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Effective date of registration: 20121217 Address after: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant after: Shanghai Electric Power Corporation Applicant after: State Grid Corporation of China Applicant after: East China Electric Power Test & Research Institute Co., Ltd. Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant before: Shanghai Electric Power Corporation Applicant before: East China Electric Power Test & Research Institute Co., Ltd. |
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Application publication date: 20121114 |