CN110530805A - High-temperature molten salt spectrophotometry device - Google Patents

High-temperature molten salt spectrophotometry device Download PDF

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Publication number
CN110530805A
CN110530805A CN201910747210.XA CN201910747210A CN110530805A CN 110530805 A CN110530805 A CN 110530805A CN 201910747210 A CN201910747210 A CN 201910747210A CN 110530805 A CN110530805 A CN 110530805A
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CN
China
Prior art keywords
molten salt
channel
temperature molten
burner hearth
spectrophotometry device
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910747210.XA
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Chinese (zh)
Inventor
李定明
常志远
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China Institute of Atomic of Energy
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China Institute of Atomic of Energy
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Application filed by China Institute of Atomic of Energy filed Critical China Institute of Atomic of Energy
Priority to CN201910747210.XA priority Critical patent/CN110530805A/en
Publication of CN110530805A publication Critical patent/CN110530805A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/3103Atomic absorption analysis
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/359Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64Fluorescence; Phosphorescence
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • G01N2021/0106General arrangement of respective parts
    • G01N2021/0112Apparatus in one mechanical, optical or electronic block
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/3103Atomic absorption analysis
    • G01N2021/3114Multi-element AAS arrangements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N2021/3129Determining multicomponents by multiwavelength light

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The present invention relates to high-temperature molten salt spectrophotometry devices, including glove box and burner hearth;The burner hearth is set to the glove box bottom;Optical channel is provided on the burner hearth.Beneficial effects of the present invention are as follows: the present invention forms atmosphere of inert gases by glove box, guarantees the hot environment of sample by burner hearth, then carry out spectroscopic measurements by light splitting channel, can be realized the spectrophotometry of molten salt sample under high temperature closure environment.

Description

High-temperature molten salt spectrophotometry device
Technical field
The invention belongs to nuclear industry fields, and in particular to a kind of high-temperature molten salt spectrophotometry device.
Background technique
In advanced nuclear fuel cycle, committed step is the thermal reactor spentnuclear fuel, fast reactor spentnuclear fuel or transmuting system to high burnup U, Pu and MA after system irradiation in target piece are separated.High burnup, height are irradiated, the fuel of the high amount containing plutonium, dry method spentnuclear fuel Post-processing technology has unrivaled advantage relative to water law post-processing, thus, the processing of this class A fuel A is needed to use Dry method process.Typical dry method process has pyrometallurgical method, pyrochemical process and three kinds of halogenation volatility process, wherein being based on high temperature melting The electrochemistry process of salt is the dry method process of current most prospects for commercial application.The technology controlling and process of high-temperature molten salt process is technique The important link of research due to the particularity of dry method last handling process, thus more pursues its technology controlling and process in-situ control point Analysis can reflect material information to monitor technical process in real time more in time, and realization is precisely controlled process.
And currently, lacking the dress that can really post-process the in-situ study technical research in process to spentnuclear fuel high-temperature molten salt It sets.
In view of this, the present invention is specifically proposed.
Summary of the invention
In view of the deficiencies in the prior art, the object of the present invention is to provide a kind of high-temperature molten salt spectrophotometry dresses It sets, at least can be realized the spectrophotometry of molten salt sample under high temperature closure environment.
Technical scheme is as follows:
High-temperature molten salt spectrophotometry device, including glove box and burner hearth;The burner hearth is set to the glove box bottom Portion;Optical channel is provided on the burner hearth.
Further, above-mentioned high-temperature molten salt spectrophotometry device, the optical channel end are close by sapphire Envelope is to form optical window.
Further, above-mentioned high-temperature molten salt spectrophotometry device, the optical channel includes Vertical Channel and water Flat channel;The Vertical Channel and horizontal channel communicate.
Further, above-mentioned high-temperature molten salt spectrophotometry device, the horizontal channel are provided at least two, institute Horizontal channel is stated to communicate with same Vertical Channel.
Further, above-mentioned high-temperature molten salt spectrophotometry device, there are four the horizontal channel settings, adjacent Angle is 90 ° between horizontal channel.
Further, above-mentioned high-temperature molten salt spectrophotometry device, is provided with water between the glove box and burner hearth Cold set.
Further, above-mentioned high-temperature molten salt spectrophotometry device is provided with recirculated water cooling at the optical window Component.
Further, above-mentioned high-temperature molten salt spectrophotometry device is fixed with screw channel on the optical window In order to optical fiber connection.
Beneficial effects of the present invention are as follows:
The present invention forms atmosphere of inert gases by glove box, guarantees the hot environment of sample by burner hearth, then by dividing Optical channel carries out spectroscopic measurements, can be realized the spectrophotometry of molten salt sample under high temperature closure environment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of high-temperature molten salt spectrophotometry device of the invention.
Fig. 2 is the structural schematic diagram of optical channel in the present invention.
In above-mentioned attached drawing, 1, glove box;2, burner hearth;3, water-cooled jacket;4, optical window;5, Vertical Channel;6, horizontal channel; 7, screw channel.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
The combination of spectral technique and electrochemical process, which makes spectroelectrochemistry technology both, has the high-energy high score of spectral technique Resolution feature has the characteristics that Electrochemical Measurement Technology high sensitivity, especially electrochemical in-situ spectral technique again, by initially using In obtaining static spectrum development as acquisition dynamic spectrum, allows one to dynamic in an experiment and obtains optical signalling and electrical signal, Make that unstable intermediate product is identified, captured from molecular level, research Reaction Mechanisms, electrochemical interface dynamics etc. become It may.Electrochemical in-situ spectrum relates to ultraviolet and visible spectrum, infrared spectroscopy Raman spectrum electronics and ion power spectrum, magnetic resonance Numerous spectral investigation fields such as spectrum, X-ray spectrum.
Actinium series and lanthanide series due to its f-f orbital electron transition so that it has in ultraviolet-visible-near infrared region Special absorption spectrum can be used absorption spectroscopy techniques combination high-temperature molten salt electrochemical process and carry out in-situ control analysis.
According to the studies above, high-temperature molten salt spectrophotometry device of the invention is as shown in Figure 1, include 1 He of glove box Burner hearth 2;The burner hearth 2 is set to 1 bottom of glove box;Optical channel is provided on the burner hearth 2.Optical channel end is logical Sapphire seal is crossed to form optical window 4.In this way, being avoided that impurity etc. to spectroscopic measurements by sapphire superior optics Influence, facilitate promoted measurement result levels of precision.Recirculated water cooling component is provided at optical window 4, for by following The cooling optical window 4 of ring water influences to avoid the high temperature in burner hearth 2.Water-cooled jacket 3 can be set between glove box 1 and burner hearth 2, Prevent the hot environment of burner hearth 2 from keeping temperature in glove box 1 excessively high.
As shown in Fig. 2, optical channel includes Vertical Channel 5 and horizontal channel 6;6 phase of the Vertical Channel 5 and horizontal channel It is logical.Horizontal channel 6 is used for absorptiometry, and Vertical Channel 5 is used for fluorescence spectral measuring.Horizontal channel 6 is provided at least two, institute Horizontal channel 6 is stated to communicate with same Vertical Channel 5.In the present embodiment, there are four the settings of horizontal channel 6, and adjacent level is logical Angle is 90 ° between road 6.In this way, four horizontal channels 6 correspond to two-by-two, be fixed on optical window 4 screw channel 7 in order to Optical fiber connection.Screw channel 7 is preferably the screw channel 7 that can connect SMA905 interface.
The high-temperature molten salt spectrophotometry device of the present embodiment is in use, be mounted on passway for SMA905 optical lens On, the silica fibre and halogen tungsten lamp light source of 400 μm of connection are surveyed using the spectral signal that visible-near-infrared spectrum instrument carries out device Amount.According to measurement result, which has preferable optical measurement characteristic, can realize that spectral signal is adopted in the light path of 50cm Collection, and signal strength reaches 60000 countings, can be used for the optical measurement of sample during high-temperature molten salt.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.If in this way, belonging to the model of the claims in the present invention and its equivalent technology to these modifications and changes of the present invention Within enclosing, then the present invention is also intended to include these modifications and variations.

Claims (8)

1. high-temperature molten salt spectrophotometry device, which is characterized in that including glove box and burner hearth;The burner hearth is set to described Glove box bottom;Optical channel is provided on the burner hearth.
2. high-temperature molten salt spectrophotometry device as described in claim 1, which is characterized in that the optical channel end is logical Sapphire seal is crossed to form optical window.
3. high-temperature molten salt spectrophotometry device as claimed in claim 2, which is characterized in that the optical channel includes perpendicular Straight channel and horizontal channel;The Vertical Channel and horizontal channel communicate.
4. high-temperature molten salt spectrophotometry device as claimed in claim 3, which is characterized in that the horizontal channel is provided with At least two, the horizontal channel is communicated with same Vertical Channel.
5. high-temperature molten salt spectrophotometry device as claimed in claim 4, which is characterized in that the horizontal channel is provided with Four, angle is 90 ° between adjacent horizontal channel.
6. the high-temperature molten salt spectrophotometry device as described in claim 2-5 is any, which is characterized in that the glove box and Water-cooled jacket is provided between burner hearth.
7. high-temperature molten salt spectrophotometry device as claimed in claim 6, which is characterized in that be arranged at the optical window There is recirculated water cooling component.
8. high-temperature molten salt spectrophotometry device as claimed in claim 7, which is characterized in that fixed on the optical window There is screw channel in order to optical fiber connection.
CN201910747210.XA 2019-08-14 2019-08-14 High-temperature molten salt spectrophotometry device Pending CN110530805A (en)

Priority Applications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111879911A (en) * 2020-06-15 2020-11-03 中国原子能科学研究院 Experimental device for static compatibility of liquid metal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105092508A (en) * 2015-07-20 2015-11-25 中国科学院上海应用物理研究所 Comprehensive spectrometer
CN105333974A (en) * 2015-12-08 2016-02-17 中国航空工业集团公司北京长城计量测试技术研究所 Double-screen air suction type sapphire optical fiber high temperature sensor
CN107941751A (en) * 2017-12-28 2018-04-20 南京科远自动化集团股份有限公司 The laser sensing method and laser sensor arrangements of a kind of high temperature process furnances
CN107941667A (en) * 2017-11-03 2018-04-20 中国神华能源股份有限公司 Hot environment Dual-Phrase Distribution of Gas olid multiparameter measuring device and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105092508A (en) * 2015-07-20 2015-11-25 中国科学院上海应用物理研究所 Comprehensive spectrometer
CN105333974A (en) * 2015-12-08 2016-02-17 中国航空工业集团公司北京长城计量测试技术研究所 Double-screen air suction type sapphire optical fiber high temperature sensor
CN107941667A (en) * 2017-11-03 2018-04-20 中国神华能源股份有限公司 Hot environment Dual-Phrase Distribution of Gas olid multiparameter measuring device and method
CN107941751A (en) * 2017-12-28 2018-04-20 南京科远自动化集团股份有限公司 The laser sensing method and laser sensor arrangements of a kind of high temperature process furnances

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111879911A (en) * 2020-06-15 2020-11-03 中国原子能科学研究院 Experimental device for static compatibility of liquid metal

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Application publication date: 20191203