CN102175822A - UF (ultra filtration factor)6Measuring container of gas uranium abundance online monitoring device - Google Patents
UF (ultra filtration factor)6Measuring container of gas uranium abundance online monitoring device Download PDFInfo
- Publication number
- CN102175822A CN102175822A CN2011100517457A CN201110051745A CN102175822A CN 102175822 A CN102175822 A CN 102175822A CN 2011100517457 A CN2011100517457 A CN 2011100517457A CN 201110051745 A CN201110051745 A CN 201110051745A CN 102175822 A CN102175822 A CN 102175822A
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- China
- Prior art keywords
- measuring vessel
- gas
- monitor device
- line monitor
- abundance
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- 229910052770 Uranium Inorganic materials 0.000 title claims abstract description 34
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000012806 monitoring device Methods 0.000 title abstract 3
- 238000000108 ultra-filtration Methods 0.000 title 1
- 230000006698 induction Effects 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004876 x-ray fluorescence Methods 0.000 description 2
- 150000001224 Uranium Chemical group 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 101150038956 cup-4 gene Proteins 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 239000011824 nuclear material Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- JFALSRSLKYAFGM-OIOBTWANSA-N uranium-235 Chemical compound [235U] JFALSRSLKYAFGM-OIOBTWANSA-N 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The invention discloses a UF6The measuring container of the on-line monitoring device for the abundance of gas uranium is of a cylindrical structure and mainly comprisesThe shell, the inlet pipe, the outlet pipe and the guide plate, wherein the guide plate divides the container into continuous flow channels in the shell, the inlet pipe is positioned at the inlet end of the channels, and the outlet pipe is positioned at the outlet end of the channels. The measuring container of the on-line monitoring device provided by the invention has the advantages of simple structure, high detection efficiency, no gas retention and capability of monitoring the abundance of the gas uranium in the pipeline on line in real time.
Description
Technical field
The present invention relates to the nuclear material analysis technical field, particularly a kind of UF
6The measuring vessel of gas uranium abundance on-Line Monitor Device.
Background technology
Uranium enrichment plant is the nuclear facilities that carries out the uranium enrichment activity, is one of object of paying close attention to of arms control verification and safeguards.Uranium enrichment plant all adopts mass spectrograph to monitor UF in the pipeline
6Gas
235The U abundance, this technology acuracy height, but complicated operation expends height, and analytical cycle is long, needs to be equipped with the professional.
At present, mainly be that the U.S., Russia have carried out The Research of Relevant Technology in the world, domesticly do not carry out The Research of Relevant Technology work.Online uranium abundance technology comprises two parts: the measurement and the UF of total uranium amount
6In the gas
235The measurement of U content.
235The measurement of U content is to utilize the gamma-ray intensity of 185.7keV feature of measuring its emission to determine.The measurement of total uranium amount has three kinds of methods: x-ray fluorescence method; The transmission source damped system; Equation of gas state method.
X-ray fluorescence method is to utilize
57Co source 122.05keV gamma-rays excites UF
6Gas, the 98keVX ray that is sent during the uranium atom de excitation that excites by measurement obtains total uranium amount; The transmission source damped system is to obtain total uranium amount by measuring radioactive source by the strength retrogression before and after the pipeline gas; The equation of gas state is that the volumetric parameter by the mensuration of temperature, pressure and tested gas calculates UF by the equation of gas state
6Gas flow, thus total uranium amount obtained.According to the difference of total uranometric survey method, uranium abundance on-line measurement device is also had nothing in common with each other in the pipeline.
In order to improve the measuring accuracy of uranium abundance, the source transmission beam method is to UF in the pipeline
6Gaseous tension has certain requirement, generally all requires at least more than 100 holders; Adopt
57When Co excites method, because the radioactive source half life period is short, need often to change, measuring accuracy is poor.These two kinds of technology all need radioactive source, and to the material and the restricted requirement of diameter of pipeline.When adopting equation of gas state method, because volume, temperature, the pressure and other parameters of tested gas can both accurately be measured, need not to increase the amount of tested gas with the way that improves tested gaseous tension, just can obtain higher measuring accuracy, be more suitable for being suitable for the characteristic of China centrifugal factory of uranium enrichment in online uranium abundance measurement fast.
For example: July in 2006, the Chinese invention patent of disclosed publication number CN1799106A on the 5th disclosed a kind of method and control system of controlling uranium-235 massfraction in the gaseous state hex, this patent documentation only discloses a kind of method and system that adopts equation of gas state method to measure the uranium abundance, and the structure to the core component measuring vessel in the system is not described.
Because the design of uranium abundance on-Line Monitor Device measuring vessel and gas circuit is the core of on-Line Monitor Device, is its critical component, is the critical piece that concerns device performance.The successful design of measuring vessel and gas circuit will stiffening device stability and practicality.And measuring vessel yet there are no report in the present pertinent literature.
Summary of the invention
The present invention has overcome deficiency of the prior art, provide a kind of simple in structure, detection efficiency is high, gas is not detained, can the on-line real time monitoring pipeline in the measuring vessel of on-Line Monitor Device of gas uranium abundance.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of measuring vessel of UF6 gas uranium abundance on-Line Monitor Device, key is, measuring vessel is columnar structured, it mainly is made up of housing, induction pipe, outlet, fair water fin, fair water fin is separated into container continuous flow channel in housing, induction pipe is positioned at the entrance point of passage, and outlet is positioned at channel outlet.
The present invention is all right:
Described columnar structured be Malin's cup-shaped structure.Described fair water fin is separated into container continuous flow channel and container is separated into from the outer to the inner continuous flow passage in housing for adopting vortex-like deflector structure in housing.Described induction pipe is provided with isocon.Described isocon adopts clearance type diffluence pass or hole formula diffluence pass.Described baffle material and case material are aluminium.A cup degree of depth is 1/2 of a measuring vessel height in described Malin's cup, the height of measuring vessel such as cup diameter in outer cup diameter deducts.The width of described diffluence pass is 0.1～1mm.
Compared with prior art, the invention has the beneficial effects as follows:
This device adopts fair water fin that container is separated into continuous flow channel, can be good at like this guaranteeing not being detained after gas enters measuring vessel, satisfy the principle of first in first out, about 2 minutes of the gas displacement time of entire container, make device can the on-line real time monitoring pipeline in the uranium abundance of gas.Measuring vessel adopts Malin's cup-shaped structure will improve the detection efficiency of device greatly.
Description of drawings
The structural representation of Fig. 1 device
The cup-shaped apparatus structure synoptic diagram of Fig. 2 Malin
The inner flow-guiding structure synoptic diagram of Fig. 3 measuring vessel
The vortex-like flow-guiding structure synoptic diagram of Fig. 4
The inner flow-guiding structure synoptic diagram of Fig. 5 measuring vessel
The cup-shaped device synoptic diagram of Fig. 6 Malin
Cup, 6 isocons, 7 diffluence pass, 8 fair water fins in 1 induction pipe, 2 outlets, 3 detectors, the 4 outer cups, 5
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
A kind of UF
6The measuring vessel of gas uranium abundance on-Line Monitor Device, as shown in Figure 1, measuring vessel is columnar structured, UF
6Gas is entered in the container by induction pipe 1, and flows out by outlet 2, and detector 3 places container bottom.Present embodiment preferably adopts Malin's cup-shaped structure, and as shown in Figure 2, wherein detector 3 places cup in the container.Measuring vessel mainly is made up of housing, induction pipe 1, outlet 2, fair water fin 8, and fair water fin 8 is separated into continuous flow channel with container in housing, and induction pipe 1 is positioned at the entrance point of passage, and outlet 2 is positioned at channel outlet.
The inside flow-guiding structure of container can be designed to three kinds of structures shown in Fig. 3,4,5, flow-guiding structure is the key that design meets the residence time and flow distribution requirement, the present invention preferably adopts vortex-like deflector structure, as shown in Figure 4, what adopt in this example is that pitch is the vortex-like deflector structure of 20mm, makes the gas that enters in the container to avoid big vortex along continuous flow channel flow from the outer to the inner, realize reasonably flow distribution, better met the principle of first in first out.
The material of measuring vessel and fair water fin 8 adopts aluminium, and through technologies such as a series of processing, decontamination, polishing, decontamination, pickling, cleaning, oven dry, heat-treat then, " passivation " handle, and makes gas significantly reduce in the absorption of vessel surface.
As shown in Figure 6, a represents the distance of outer cup 4 and interior cup 5, the degree of depth of cup in the b representative, the distance of cup bottom and outer cup bottom in the c representative.In the present embodiment in Malin's cup a cup degree of depth be 1/2 of measuring vessel height, the cup diameter equaled the height of measuring vessel in outer cup diameter deducted, i.e. a=b=c helps the better optimize of apparatus structure and detection efficiency like this.A, b, the concrete size of c need be covered snap gauge and be intended drawing as the case may be.
Claims (9)
1. UF
6The measuring vessel of gas uranium abundance on-Line Monitor Device, it is characterized in that, measuring vessel is columnar structured, it mainly is made up of housing, induction pipe, outlet, fair water fin, fair water fin is separated into container continuous flow channel in housing, induction pipe is positioned at the entrance point of passage, and outlet is positioned at channel outlet.
2. a kind of UF according to claim 1
6The measuring vessel of gas uranium abundance on-Line Monitor Device is characterized in that, described columnar structured be Malin's cup-shaped structure.
3. a kind of UF according to claim 1
6The measuring vessel of gas uranium abundance on-Line Monitor Device is characterized in that, described fair water fin is separated into container continuous flow channel and container is separated into from the outer to the inner continuous flow passage in housing for adopting vortex-like deflector structure in housing.
4. a kind of UF according to claim 1
6The measuring vessel of gas uranium abundance on-Line Monitor Device is characterized in that described induction pipe is provided with isocon.
5. a kind of UF according to claim 4
6The measuring vessel of gas uranium abundance on-Line Monitor Device is characterized in that, described isocon adopts the clearance type diffluence pass.
6. a kind of UF according to claim 4
6The measuring vessel of gas uranium abundance on-Line Monitor Device is characterized in that, described isocon adopts hole formula diffluence pass.
7. a kind of UF according to claim 1
6The measuring vessel of gas uranium abundance on-Line Monitor Device is characterized in that described baffle material and case material are aluminium.
8. a kind of UF according to claim 2
6The measuring vessel of gas uranium abundance on-Line Monitor Device is characterized in that, a cup degree of depth is 1/2 of a measuring vessel height in described Malin's cup, the height of measuring vessel such as cup diameter in outer cup diameter deducts.
9. according to claim 5 or 6 described a kind of UF
6The measuring vessel of gas uranium abundance on-Line Monitor Device is characterized in that the width of described diffluence pass is 0.1～1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110051745.7A CN102175822B (en) | 2011-03-04 | 2011-03-04 | UF (ultra filtration factor)6Measuring container of gas uranium abundance online monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110051745.7A CN102175822B (en) | 2011-03-04 | 2011-03-04 | UF (ultra filtration factor)6Measuring container of gas uranium abundance online monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102175822A true CN102175822A (en) | 2011-09-07 |
| CN102175822B CN102175822B (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110051745.7A Active CN102175822B (en) | 2011-03-04 | 2011-03-04 | UF (ultra filtration factor)6Measuring container of gas uranium abundance online monitoring device |
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| Country | Link |
|---|---|
| CN (1) | CN102175822B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990428A (en) * | 2017-05-03 | 2017-07-28 | 中国核动力研究设计院 | The method of uranium content and its device is realized in a kind of neutron measurement uranium-bearing liquid |
| CN108983276A (en) * | 2018-08-22 | 2018-12-11 | 中国原子能科学研究院 | A kind of UF6The verification measuring device and method of uranium quality in big tank |
| CN110261417A (en) * | 2019-07-02 | 2019-09-20 | 中国原子能科学研究院 | A kind of uranium Measuring abundance of U-bar system improving monitoring accuracy |
| CN110308474A (en) * | 2019-07-02 | 2019-10-08 | 中国原子能科学研究院 | A kind of small-sized monitoring device for on-line measurement gas uranium abundance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2388581Y (en) * | 1999-08-08 | 2000-07-19 | 王瑞华 | Plate coil |
| CN201748942U (en) * | 2010-08-05 | 2011-02-16 | 矽翔微机电系统(上海)有限公司成都分公司 | Heat distribution type gas mass flow meter |
| CN202066806U (en) * | 2011-03-04 | 2011-12-07 | 中国原子能科学研究院 | Measuring container of UF6 gas uranium abundance online monitoring device |
-
2011
- 2011-03-04 CN CN201110051745.7A patent/CN102175822B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2388581Y (en) * | 1999-08-08 | 2000-07-19 | 王瑞华 | Plate coil |
| CN201748942U (en) * | 2010-08-05 | 2011-02-16 | 矽翔微机电系统(上海)有限公司成都分公司 | Heat distribution type gas mass flow meter |
| CN202066806U (en) * | 2011-03-04 | 2011-12-07 | 中国原子能科学研究院 | Measuring container of UF6 gas uranium abundance online monitoring device |
Non-Patent Citations (2)
| Title |
|---|
| 吕学升 等: "铀浓缩厂在线铀富集度监测原型装置研制", 《中国原子能科学研究院年报》, 31 July 2010 (2010-07-31), pages 387 - 388 * |
| 吕学升 等: "铀浓缩厂铀丰度在线监测装置研制", 《中国原子能科学研究院年报》, no. 00, 31 December 2010 (2010-12-31), pages 1 - 9 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990428A (en) * | 2017-05-03 | 2017-07-28 | 中国核动力研究设计院 | The method of uranium content and its device is realized in a kind of neutron measurement uranium-bearing liquid |
| CN108983276A (en) * | 2018-08-22 | 2018-12-11 | 中国原子能科学研究院 | A kind of UF6The verification measuring device and method of uranium quality in big tank |
| CN110261417A (en) * | 2019-07-02 | 2019-09-20 | 中国原子能科学研究院 | A kind of uranium Measuring abundance of U-bar system improving monitoring accuracy |
| CN110308474A (en) * | 2019-07-02 | 2019-10-08 | 中国原子能科学研究院 | A kind of small-sized monitoring device for on-line measurement gas uranium abundance |
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| Publication number | Publication date |
|---|---|
| CN102175822B (en) | 2014-08-13 |
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