CN203862049U - Novel dust filter for high-temperature high-pressure radioactive helium environment - Google Patents
Novel dust filter for high-temperature high-pressure radioactive helium environment Download PDFInfo
- Publication number
- CN203862049U CN203862049U CN201420049046.8U CN201420049046U CN203862049U CN 203862049 U CN203862049 U CN 203862049U CN 201420049046 U CN201420049046 U CN 201420049046U CN 203862049 U CN203862049 U CN 203862049U
- Authority
- CN
- China
- Prior art keywords
- supporting plate
- filter element
- cylindrical shell
- novel dust
- helium environment
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 239000000428 dust Substances 0.000 title claims abstract description 23
- 239000001307 helium Substances 0.000 title claims abstract description 21
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 21
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 230000002285 radioactive effect Effects 0.000 title abstract description 9
- 229910000754 Wrought iron Inorganic materials 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000032683 aging Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 210000004907 gland Anatomy 0.000 abstract 4
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 238000003466 welding Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A novel dust filter for a high-temperature high-pressure radioactive helium environment comprises a drum as well as an upper gland and a lower gland which are arranged at the upper end and the lower end of the drum respectively, wherein the drum, the upper gland and the lower gland adopt a full-welding structure; an upper supporting plate and a lower supporting plate are arranged in the drum; multiple through holes are distributed in the upper supporting plate at intervals; open ends of upper ends of multiple filter elements are fixed in the through holes of the upper supporting plate; steel bars are welded at lower ends of the filter elements, and the steel bars and the lower supporting plate are connected through mortise structures. According to the dust filter, the problems of helium leakage of existing dust filters, sealing part ageing due to the radioactivity and treatment of radioactive dust are solved.
Description
Technical field
The utility model relates to dust filtering device technical field in reactor engineering, is specifically related to a kind of novel dust filtering device for HTHP radioactivity helium environment.
Background technology
HTGR be taking graphite as moderator, helium is the reactor of cooling agent, is that one has that inherent safety, generating efficiency are high, purposes advanced nuclear reactor very widely.In reactor operation process, due to spheric fuel element friction each other, produce graphite dust.These graphite dusts can, along with helium gas flow moves in steam generator heat-transfer pipe, affect steam generator heat-transfer effect on the one hand, and these graphite dusts have radioactivity on the other hand, can make reactor-loop radioactive level raise.The molecule of cooling agent helium is very little, has very high diffusivity, penetrable atomic small gap, and therefore, sealing helium is very difficult, particularly in the condition of high temperature and high pressure.Helium expensive, and in helium, also have radioimpurity radioactive impurity gas, must reduce radioactivity and leak, slow down the impact on environment.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of novel dust filtering device for HTHP radioactivity helium environment, solved the helium leakage problem that existing dust filtering device exists, how seal problem of aging and radioactive dust that radioactivity causes process problem.
For achieving the above object, the utility model adopts following technical scheme:
A kind of novel dust filtering device for HTHP radioactivity helium environment, comprise cylindrical shell 5, be separately positioned on upper cover 2 and the low head 8 of cylindrical shell 5 top and bottom, described cylindrical shell 5 adopts all-welded structure with upper cover 2 and low head 8, at interior upper backup pad 3 and the lower supporting plate 6 of arranging of described cylindrical shell 5, described upper backup pad 3 is for being intervally distributed with the plate of multiple through holes, the openend of multiple filter elements 4 upper ends is fixed in the through hole of upper backup pad 3, the lower end of described filter element 4 is welded with rod iron, adopts tenon groove structure to be connected by rod iron with lower supporting plate 6.
The length that described cylindrical shell 5 is positioned at the lower section of lower supporting plate 6 lengthens, to increase the volume of filter.
Described filter element 4 adopts stainless steel powder metallurgical tubular filter element.
Rod iron and the lower supporting plate 6 of described filter element 4 lower ends adopt matched in clearance.
Compared to the prior art, tool has the following advantages the utility model:
1, the utility model cylindrical shell 5 adopts all-welded structure with upper cover 2 and low head 8, has thoroughly avoided helium and the radioimpurity radioactive impurity problem that leaks outside; The lower end of filter element 4 is welded with rod iron, adopts tenon groove structure to be connected by rod iron with lower supporting plate 6, has ensured horizontal direction orientation problem; Adopt many filter element parallel waies, increase circulation area, reduced the flow resistance of device.
2, the graphite dust producing due to reactor has stronger radioactivity, and processing radioactive dust is a very thorny problem.The utility model increases filter cylindrical shell 5 lower length, the volume of filter bottom is increased, thereby can collect the Dust Capacity that operation in 20 years produces.Filter adopts disposable integral to change equipment scheme like this, does not carry out detachable maintaining in running, has avoided radioactive dust to process separately.
3, filter element 4 adopts stainless steel powder metallurgical tubular filter element, high temperature high voltage resistant.
4, the rod iron of filter element 4 lower ends and lower supporting plate 6 adopt matched in clearance, thermal expansion problem while having solved high temperature.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged drawing at A place in Fig. 1.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of novel dust filtering device for HTHP radioactivity helium environment of the utility model, comprise cylindrical shell 5, be separately positioned on upper cover 2 and the low head 8 of cylindrical shell 5 top and bottom, described cylindrical shell 5 adopts all-welded structure with upper cover 2 and low head 8, at interior upper backup pad 3 and the lower supporting plate 6 of arranging of described cylindrical shell 5, described upper backup pad 3 is for being intervally distributed with the plate of multiple through holes, the openend of multiple filter elements 4 upper ends is fixed in the through hole of upper backup pad 3, the lower end of described filter element 4 is welded with rod iron, adopt tenon groove structure to be connected by rod iron with lower supporting plate 6.
As preferred embodiment of the present utility model, the length that described cylindrical shell 5 is positioned at the lower section of lower supporting plate 6 lengthens, to increase the volume of filter.
As preferred embodiment of the present utility model, described filter element 4 adopts stainless steel powder metallurgical tubular filter element.
As preferred embodiment of the present utility model, rod iron and the lower supporting plate 6 of described filter element 4 lower ends adopt matched in clearance.
Operation principle of the present utility model is: the helium that carries dust enters from filter bottom air inlet 7, flow through the opening of lower supporting plate 6, then through the micropore on filter element 4, enter into filter element opposite side, dust is trapped in outside filter element 4.The helium being filtered, from gas outlet, filter top 1 outflow filter device, has completed the process of filtering.
Claims (3)
1. the novel dust filtering device for HTHP radioactivity helium environment, comprise cylindrical shell (5), be separately positioned on upper cover (2) and the low head (8) of cylindrical shell (5) top and bottom, it is characterized in that: described cylindrical shell (5) adopts all-welded structure with upper cover (2) and low head (8), upper backup pad (3) and lower supporting plate (6) are set in described cylindrical shell (5), described upper backup pad (3) is for being intervally distributed with the plate of multiple through holes, the openend of multiple filter elements (4) upper end is fixed in the through hole of upper backup pad (3), the lower end of described filter element (4) is welded with rod iron, adopt tenon groove structure to be connected by rod iron and lower supporting plate (6).
2. a kind of novel dust filtering device for HTHP radioactivity helium environment according to claim 1, is characterized in that: described filter element (4) adopts stainless steel powder metallurgical tubular filter element.
3. a kind of novel dust filtering device for HTHP radioactivity helium environment according to claim 1, is characterized in that: the rod iron of described filter element (4) lower end and lower supporting plate (6) adopt matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420049046.8U CN203862049U (en) | 2014-01-24 | 2014-01-24 | Novel dust filter for high-temperature high-pressure radioactive helium environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420049046.8U CN203862049U (en) | 2014-01-24 | 2014-01-24 | Novel dust filter for high-temperature high-pressure radioactive helium environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203862049U true CN203862049U (en) | 2014-10-08 |
Family
ID=51643040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420049046.8U Expired - Lifetime CN203862049U (en) | 2014-01-24 | 2014-01-24 | Novel dust filter for high-temperature high-pressure radioactive helium environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203862049U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103830977A (en) * | 2014-01-24 | 2014-06-04 | 清华大学 | Dust filter unit used for high-temperature high-pressure radioactive helium environment |
| CN113117432A (en) * | 2021-04-15 | 2021-07-16 | 哈尔滨工程大学 | Fire-resistant and radiation-resistant metal fiber filter |
-
2014
- 2014-01-24 CN CN201420049046.8U patent/CN203862049U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103830977A (en) * | 2014-01-24 | 2014-06-04 | 清华大学 | Dust filter unit used for high-temperature high-pressure radioactive helium environment |
| CN113117432A (en) * | 2021-04-15 | 2021-07-16 | 哈尔滨工程大学 | Fire-resistant and radiation-resistant metal fiber filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210113 Address after: 100193 building 26, Zhongguancun Software Park, 8 Dongbeiwang West Road, Haidian District, Beijing Patentee after: CHINERGY Co.,Ltd. Address before: 100084, Haidian District, 100084 mailbox, 82 boxes, Tsinghua University patent office, Beijing Patentee before: TSINGHUA University |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |