CN104667663B - Aerosol metal fiber filter - Google Patents
Aerosol metal fiber filter Download PDFInfo
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- CN104667663B CN104667663B CN201510072152.7A CN201510072152A CN104667663B CN 104667663 B CN104667663 B CN 104667663B CN 201510072152 A CN201510072152 A CN 201510072152A CN 104667663 B CN104667663 B CN 104667663B
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Abstract
The invention relates to an aerosol metal fiber filter which comprises a shell (7), wherein an inlet (5) is formed in the bottom of the shell (7); an outlet (6) is formed in the top of the shell (7); and a metal fiber filtering mechanism (8) perpendicular to a central shaft of the shell is arranged on the upper part inside the shell (7). According to the aerosol metal fiber filter provided by the invention, a metal fiber filtering mechanism comprising two-stage metal fiber filtration and a baffle plate are adopted, and the filtering efficiency can be greatly improved. In addition, the filter is simple and compact in structure and convenient to mount and has high adjustability.
Description
Technical field
The invention belongs to metallic fiber filter technical field is and in particular to a kind of aerosol metal fabric filter.
Background technology
There is major accident and open after containment filtration exhaust system by regulation in nuclear power plant, contain in the gas being discharged
Substantial amounts of aerosol, particle iodine and organic iodine, have very big harm to human body and environment, it usually needs using at filtration
Reason, after reaching the discharge standard of nuclear power station requirement, could enter air by chimney of electric plant.Current filtration treatment mode has many
Kind, typically adopt two-stage filter, washing filtering and metallic fiber filter, metallic fiber filter is that the second level is filtered, deficiency
Place is: the filter efficiency of aerosol, particle iodine and organic iodine is low, high energy consumption.
Content of the invention
For defect present in prior art, it is an object of the invention to provide a kind of structure is simple, filter efficiency is high and
It is easy to the aerosol metal fabric filter adjusting.
For reaching object above, the technical solution used in the present invention is: a kind of aerosol metal fabric filter, including shell
Body, the bottom of housing is provided with import, and top is provided with outlet, and housing internal upper part is provided with the metallic fiber filter perpendicular to central shaft
Mechanism.
Further, described metallic fiber filter mechanism includes filter element, and the metal that filter element includes parallel series is fine
Tie up pre- filtering layer and metallic fiber filter bed of essence.
Further, described filter element also includes the collection being located between the pre- filtering layer of metallic fiber and metallic fiber filter bed of essence
Water discharges module.
Further, metallic fiber filter mechanism also includes the gas collection module being located at filter element downstream, and gas collection module
It is connected with the side of the metallic fiber filter bed of essence in filter element.
Further, metallic fiber filter mechanism includes two filter elements, and two filter elements are symmetrical in gas collection module and set
Put.
Further, the pre- filtering layer of metallic fiber and metallic fiber filter bed of essence are network structure；The pre- filtering layer of metallic fiber includes
First, second and third layer of pre-flock, metallic fiber filter bed of essence includes first, second, third and fourth, five layers of fine straining.
Further, in the pre- filtering layer of metallic fiber, the thickness of pre-flock ground floor is 8-15 millimeter, and metallic fiber silk screen is a diameter of
10-50 micron；The thickness of the pre-flock second layer is 8-15 millimeter, metallic fiber silk screen a diameter of 10-50 micron；Pre-flock third layer
Thickness is 5-15 millimeter, metallic fiber silk screen a diameter of 2-10 micron..
Further, in metallic fiber filter bed of essence, the thickness of fine straining ground floor is 8-20 millimeter, and metallic fiber silk screen is a diameter of
5-20 micron；The thickness of the fine straining second layer is 2-10 millimeter, metallic fiber silk screen a diameter of 1-10 micron；The thickness of fine straining third layer
Spend for 8-15 millimeter, metallic fiber silk screen a diameter of 5-20 micron；The thickness that the 4th layer of fine straining is 2-10 millimeter, metal fiber wire
Net a diameter of 1-10 micron；The thickness of fine straining layer 5 is 8-15 millimeter, metallic fiber silk screen a diameter of 5-20 micron.
Further, the material of metallic fiber is resistance to irradiation, corrosion resistant metal material, such as super-low carbon stainless steel 316l.
Further, the lower section of shell in-vivo metal fiber filter mechanism is provided with deflection plate.
Compared with prior art, the method have the advantages that
Firstth, the present invention adopts deflection plate and metallic fiber filter mechanism (including two-stage metallic fiber filter), significantly carries
High filter efficiency.Using the filter of the present invention, final filter efficiency is up to following numerical value: filters effect to aerocolloidal
Rate is ＞ 99.99%, and the filter efficiency to particle iodine is ＞ 99.5%, is about 90% to the filter efficiency of organic iodine.
Secondth, the aerosol metal fabric filter of the present invention, it is simple and compact for structure, is easily installed, and has higher
Adjustability.
Brief description
Fig. 1 is a kind of structural representation of aerosol metal fabric filter provided by the present invention；
Fig. 2 is the structural representation of the metallic fiber filter mechanism amplified in Fig. 1.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and detailed description.
As shown in figure 1, a kind of aerosol metal fabric filter provided by the present invention, including housing 7, the bottom of housing 7
Portion is provided with import 5, and top is provided with outlet 6, and housing 7 internal upper part is provided with the metallic fiber filter mechanism 8 perpendicular to central shaft.
Described metallic fiber filter mechanism 8 includes filter element, and filter element includes the metallic fiber pre-flock of parallel series
Layer 1 and metallic fiber filter bed of essence 3, as shown in Figure 2.The pre- filtering layer of metallic fiber 1 is mainly used in trapping big droplet and bulky grain gas
Colloidal sol, metallic fiber filter bed of essence 3 is mainly used in filtering droplet and the aerosol of micron order and submicron order, especially for diameter
The particulate that 1 μm of ＜.
As shown in Fig. 2 in a preferred embodiment, described filter element also includes being located at the pre- filtering layer of metallic fiber 1 He
Discharge module 2 of catchmenting between metallic fiber filter bed of essence 3, discharge module 2 of catchmenting is used for collecting the droplet carrying in filtration gas.
In preferred specific embodiment, metallic fiber filter mechanism 8 also includes being located at the collection in filter element downstream
Gas module 4, and gas collection module 4 is connected with the side of the metallic fiber filter bed of essence 3 in filter element.
In the present invention, the pre- filtering layer of metallic fiber 1 and metallic fiber filter bed of essence 3 are network structure.The pre- filtering layer of metallic fiber 1
Can be made up of pre-flock first, second and third layer of 1-1,1-2,1-3, metallic fiber filter bed of essence 3 can by fine straining first, second, third and fourth,
Five layers of 3-1,3-2,3-3,3-4,3-5 composition.During concrete setting, arrange between pre-flock third layer 1-3 and fine straining ground floor 3-1
Catchment exhaust unit module 3, fine straining layer 5 3-5 is connected with gas collection unit module 4.
Under preferable case, in the pre- filtering layer of metallic fiber 1, the thickness of pre-flock ground floor 1-1 can be 8-15 millimeter, and metal is fine
Dimension wire diameter sizes can be 10-50 micron；The thickness of pre-flock second layer 1-2 can be 8-15 millimeter, metallic fiber silk screen diameter
It can be 10-50 micron；The thickness of pre-flock third layer 1-3 can be 5-15 millimeter, and metallic fiber silk screen diameter can be 10-50
Micron.In metallic fiber filter bed of essence 3, the thickness of fine straining ground floor 3-1 can be 8-20 millimeter, and metallic fiber silk screen diameter is permissible
For 5-20 micron；The thickness of fine straining second layer 3-2 can be 2-10 millimeter, and metallic fiber silk screen diameter can be 1-10 micron；
The thickness of fine straining third layer 3-3 can be 8-15 millimeter, and metallic fiber silk screen diameter can be 5-20 micron；The 4th layer of 3- of fine straining
4 thickness can be 2-10 millimeter, and metallic fiber silk screen diameter can be 1-10 micron；The thickness of fine straining layer 5 3-5 is permissible
For 8-15 millimeter, metallic fiber silk screen diameter can be 5-20 micron.
In a more preferred embodiment, in the pre- filtering layer of metallic fiber 1, the metallic fiber silk screen diameter of pre-flock ground floor 1-1
For 30 microns, 12 millimeters of screen thickness, totally 10 layers；A diameter of 12 microns of the metallic fiber silk screen of pre-flock second layer 1-2, silk screen is thick
10 millimeters of degree, totally 5 layers；8 microns of the metallic fiber silk screen diameter of pre-flock third layer 1-3,8 millimeters of screen thickness, totally 6 layers；And,
In metallic fiber filter bed of essence 3, fine straining ground floor 3-) a diameter of 12 microns of metallic fiber silk screen, 10 millimeters of screen thickness, totally 6
Layer；A diameter of 2 microns of the metallic fiber silk screen of fine straining second layer 3-2,4 millimeters of screen thickness, totally 2 layers；Fine straining third layer 3-3
A diameter of 12 microns of metallic fiber silk screen, 10 millimeters of screen thickness, totally 2 layers；The metallic fiber silk screen diameter of the 4th layer of 3-4 of fine straining
For 2 microns, 4 millimeters of screen thickness, totally 6 layers；A diameter of 12 microns of the metallic fiber silk screen of fine straining layer 5 3-5, screen thickness
10 millimeters, totally 2 layers.
In the present invention, the material of metallic fiber is resistance to irradiation, corrosion resistant metal material.Preferably super-low carbon stainless steel
316l.
The material of the metallic fiber in the pre- filtering layer of metallic fiber 1, metallic fiber filter bed of essence 3 can identical it is also possible to different；
The pre- filtering layer of metallic fiber 1, the metallic fiber of each layer of metallic fiber filter bed of essence 3 material can identical it is also possible to different.
Additionally, in the present invention, the lower section of shell in-vivo metal fiber filter mechanism is provided with deflection plate 9, using this deflection plate 9 energy
Enough reduce gas flow rate, and avoid gas directly upper punching, filter efficiency can be improve.
The metal fiber filter of the application present invention is when being filtered, from upper one procedure come containing aerosol, particle
The gas of iodine and organic iodine enters in housing 7 from the import 5 of metal fiber filter, and gas first passes through deflection plate 9, then
By the pre- filtering layer of metallic fiber 1, big droplet and bulky grain aerosol are captured, and then pass through metallic fiber filter bed of essence 3, mistake again
Filter droplet and the aerosol of micron order and submicron order, finally, gas after filtering passes through to export 7 and enters next stage.
Additionally, for the volume reducing filter container, and improve the stress of filter container, in present configuration
Using metallic fiber filter mechanism 8 can be using the frame mode that be arranged symmetrically of parallel connection, that is, metallic fiber filter mechanism 8 can wrap
Include another filter element being symmetrical in gas collection module 4 setting, such metallic fiber filter mechanism 8 just includes two pre- filtering layers 1, two
Individual filter bed of essence 3, two catchment discharge module 2 and gas collection modules 4.Certainly, according to the metallic fiber filter of this structure
Mechanism 8, the flow direction of the shape of filter, structure and gas needs suitably to change, and this is also contained in the model of the present invention
Within enclosing.
Structure of the present invention is not limited to the embodiment described in specific embodiment, and those skilled in the art are according to this
The technical scheme of invention draws other embodiments, also belongs to the technological innovation scope of the present invention.
Claims (6)
1. a kind of aerosol metal fabric filter, including housing (7), the bottom of housing (7) is provided with import (5), and top is provided with
Outlet (6) is it is characterised in that housing (7) internal upper part is provided with the metallic fiber filter mechanism (8) perpendicular to central shaft；Described
Metallic fiber filter mechanism (8) includes two filter elements and gas collection module (4), and two filter elements are symmetrical in gas collection module
(4), gas collection module (4) is located at filter element downstream；Filter element includes the pre- filtering layer of metallic fiber (1) and the metal of parallel series
Fiber filter bed of essence (3) and be located at the discharge module of catchmenting between the pre- filtering layer of metallic fiber (1) and metallic fiber filter bed of essence (3)
, and gas collection module (4) is connected with the side of the metallic fiber filter bed of essence (3) in filter element (2).
2. a kind of aerosol metal fabric filter according to claim 1 is it is characterised in that the pre- filtering layer of metallic fiber
And metallic fiber filter bed of essence (3) is network structure (1)；The pre- filtering layer of metallic fiber (1) first, second and third layer of pre-flock of inclusion (1-1,
1-2,1-3), metallic fiber filter bed of essence (3) includes first, second, third and fourth, five layers of fine straining (3-1,3-2,3-3,3-4,3-5).
3. a kind of aerosol metal fabric filter according to claim 2 is it is characterised in that the pre- filtering layer of metallic fiber
(1), in, the thickness of pre-flock ground floor (1-1) is 8-15 millimeter, metallic fiber silk screen a diameter of 10-50 micron；The pre-flock second layer
(1-2) thickness is 8-15 millimeter, metallic fiber silk screen a diameter of 10-50 micron；The thickness of pre-flock third layer (1-3) is 5-15
Millimeter, metallic fiber silk screen a diameter of 2-10 micron.
4. a kind of aerosol metal fabric filter according to claim 2 is it is characterised in that metallic fiber filter bed of essence
(3), in, the thickness of fine straining ground floor (3-1) is 8-20 millimeter, metallic fiber silk screen a diameter of 5-20 micron；The fine straining second layer
(3-2) thickness is 2-10 millimeter, metallic fiber silk screen a diameter of 1-10 micron；The thickness of fine straining third layer (3-3) is 8-15
Millimeter, metallic fiber silk screen a diameter of 5-20 micron；The thickness of the 4th layer of fine straining (3-4) is 2-10 millimeter, metallic fiber silk screen
A diameter of 1-10 micron；The thickness of fine straining layer 5 (3-5) is 8-15 millimeter, metallic fiber silk screen a diameter of 5-20 micron.
5. a kind of aerosol metal fabric filter according to claim 1 is it is characterised in that the material of metallic fiber is
Resistance to irradiation, corrosion resistant metal material.
6. a kind of aerosol metal fabric filter according to claim 1 is it is characterised in that the interior metal of housing (7) is fine
The lower section of dimensional filter mechanism (8) is provided with deflection plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072152.7A CN104667663B (en) | 2015-02-11 | 2015-02-11 | Aerosol metal fiber filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072152.7A CN104667663B (en) | 2015-02-11 | 2015-02-11 | Aerosol metal fiber filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104667663A CN104667663A (en) | 2015-06-03 |
| CN104667663B true CN104667663B (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510072152.7A Active CN104667663B (en) | 2015-02-11 | 2015-02-11 | Aerosol metal fiber filter |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873050A (en) * | 1987-03-23 | 1989-10-10 | Siemens Aktiengesellschaft | Method and apparatus for pressure relief of a nuclear power plant |
| US5017331A (en) * | 1988-04-18 | 1991-05-21 | Siemens Aktiengesellschaft | Nuclear power plant having a containment |
| CN101151084A (en) * | 2005-02-04 | 2008-03-26 | 唐纳森公司 | Aerosol separator |
| CN104064238A (en) * | 2014-06-13 | 2014-09-24 | 长江勘测规划设计研究有限责任公司 | Passive water rinsing filter system for airborne radioactive effluent of underground nuclear power station |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10111396A (en) * | 1996-10-09 | 1998-04-28 | Mitsubishi Heavy Ind Ltd | Filter for sodium aerosol removal |
-
2015
- 2015-02-11 CN CN201510072152.7A patent/CN104667663B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873050A (en) * | 1987-03-23 | 1989-10-10 | Siemens Aktiengesellschaft | Method and apparatus for pressure relief of a nuclear power plant |
| US5017331A (en) * | 1988-04-18 | 1991-05-21 | Siemens Aktiengesellschaft | Nuclear power plant having a containment |
| CN101151084A (en) * | 2005-02-04 | 2008-03-26 | 唐纳森公司 | Aerosol separator |
| CN104064238A (en) * | 2014-06-13 | 2014-09-24 | 长江勘测规划设计研究有限责任公司 | Passive water rinsing filter system for airborne radioactive effluent of underground nuclear power station |
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| Publication number | Publication date |
|---|---|
| CN104667663A (en) | 2015-06-03 |
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Application publication date: 20150603 Assignee: JIANGSU XIJIE NEW ENERGY ENGINEERING TECHNOLOGY Co.,Ltd. Assignor: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. Contract record no.: X2022110000057 Denomination of invention: An aerosol metal fiber filter Granted publication date: 20170125 License type: Common License Record date: 20221025 |
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