CN113230712A - Water filter element for treating radioactive water - Google Patents
Water filter element for treating radioactive water Download PDFInfo
- Publication number
- CN113230712A CN113230712A CN202110405370.3A CN202110405370A CN113230712A CN 113230712 A CN113230712 A CN 113230712A CN 202110405370 A CN202110405370 A CN 202110405370A CN 113230712 A CN113230712 A CN 113230712A
- Authority
- CN
- China
- Prior art keywords
- water
- filter
- treatment
- sealing ring
- radioactive
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000003365 glass fiber Substances 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 4
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims 1
- 239000010432 diamond Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 239000008235 industrial water Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000004807 localization Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/016—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements with corrugated, folded or wound filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/06—Processing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/34—Seals or gaskets for filtering elements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to a water filter element for treating radioactive water, which belongs to the technical field of nuclear industrial water treatment, and comprises a filter material (6), wherein the upper end and the lower end of the filter material (6) are respectively provided with an upper end cover (3) and a lower end cover (7), the outer surface of the filter material (6) is covered with a protection net (5), the cylindrical surface of the upper end cover (3) is provided with an annular groove, and a Y-shaped sealing ring (2) is arranged in the groove. By adopting the Y-shaped sealing ring, the sealing effect of the filter element can be improved, and the service life of the filter element can be prolonged; by adopting the modified glass fiber filter material with different filter precisions and the multi-pleat structure, the filter precision requirement of various water treatment systems of the nuclear power plant can be met.
Description
Technical Field
The invention belongs to the technical field of nuclear industry water treatment, and particularly relates to a water filter element for treating radioactive water.
Background
The water filter element for treating radioactive water is mainly used for removing corrosion products and suspended solid particles existing in water in a colloid form in a primary loop and a secondary loop of a nuclear power plant, and is an important spare part for ensuring the stable operation of the nuclear power plant. At present, the filter element of the radioactive water filter for the process water loop of the nuclear power plant is commercialized, and the manufacturers for providing the filter element only comprise a few companies such as Pal company in the United states, 3L company in Canada and the like. Most of radioactive water filter elements used in nuclear power plants which are commercially operated at home are imported products at home and abroad, and imported goods have the problems of high cost, unstable supply period, poor after-sale service and the like, so that the water filter element meeting the filtering and purifying requirements needs to be designed urgently to realize the localization of the water filter element.
The water filter needs good sealing effect between filter core and the casing in the installation, because in the process of handling nuclear power plant's primary loop and secondary loop's process water, process wastewater has certain radioactivity, can cause the corruption to the sealing washer, influences its structure, causes the deformation, influences sealed effect. Therefore, strict requirements are put on the sealing effect and the service life of the sealing ring.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a water filter element for treating radioactive water, which has the advantages of realizing wider filtration precision, improving the sealing effect and prolonging the service life, and meeting the filtration requirements of various water treatment systems of a nuclear power plant.
In order to achieve the above purposes, the invention adopts the technical scheme that: the utility model provides a water filter core for handling radioactive water, the filter core includes the filter media, the filter media is gone up the lower extreme and is provided with upper end cover and bottom end cap respectively, the filter media surface covers there is the protection net, it has an annular groove to open on the upper end cover cylinder, be provided with Y type sealing washer in the recess.
Further, as for the water filter element for treating radioactive water, the upper end cover and the lower end cover are connected with the filter material into a whole through the adhesive.
Further, as above, the handle is arranged above the upper end cover, the handle comprises a handle ring and handle legs, and the handle ring is connected with the upper end cover through the handle legs.
Further, in the water filter cartridge for radioactive water treatment as described above, the filter material has a cylindrical shape and a multi-pleated surface.
Still further, as for the water filter element for treating radioactive water, the material of the filter material is modified glass fiber.
Still further, in the water filter cartridge for radioactive water treatment as described above, the filtration accuracy of the filter medium is 0.1 μm to 100 μm.
Further, in the water filter cartridge for radioactive water treatment as described above, the Y-shaped seal ring has a Y-shaped cross section.
Still further, as above, the water filter cartridge for treating radioactive water, wherein the Y-shaped seal ring includes a seal ring main body, a seal ring inner lip and a seal ring outer lip.
Still further, in the water filter cartridge for treating radioactive water as described above, the Y-shaped sealing ring is made of ethylene propylene diene monomer.
Further, in the water filter cartridge for treating radioactive water as described above, the protective net has a diamond-shaped net structure.
The water filter element for treating radioactive water provided by the invention has the following advantages:
the water filter element for treating radioactive water provided by the invention adopts the Y-shaped sealing ring, so that the problem that the sealing effect is influenced due to corrosion and deformation of radioactive process wastewater of a nuclear power plant to seal is solved; the glass fiber filter material and the multi-fold structure with different modified filter precisions can meet the filter precision requirements of various water treatment systems of nuclear power plants, and a feasible technical route is provided for realizing the localization of the water filter element for treating radioactive water.
Drawings
FIG. 1 is a schematic diagram of a water filter cartridge for the treatment of radioactive water according to an embodiment of the present invention;
FIG. 2 is a schematic top view of the water filter cartridge of FIG. 1;
FIG. 3 is a cross-sectional view A-A of the Y-ring of FIGS. 1 and 2;
wherein: 1-a handle; 2-Y type sealing ring; 3-upper end cover; 4-an adhesive; 5-a protection net; 6-filtering material; 7-lower end cap; 11-a handle ring; 12-a leg; 21-a seal ring body; 22-inner lip of sealing ring; 23-seal ring outer lip.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1 to 3, the present embodiment provides a water filter cartridge for treating radioactive water, which is generally cylindrical and includes a filter material 6, an upper end cap 3 and a lower end cap 7 are respectively disposed at the upper end and the lower end of the filter material 6, and the upper end cap 3 and the lower end cap 8 are connected to the filter material 6 by an adhesive 4 to form a whole; the outer surface of the filter material 6 is covered with a layer of protective net 5, the cylindrical surface of the upper end cover 3 is provided with an annular groove, a Y-shaped sealing ring 2 is arranged in the groove, a handle 1 is also arranged above the upper end cover 3, and the whole filter element is placed into the shell of the filter through the handle 1.
The filter material 6 is cylindrical in shape, the surface of the filter material is in a multi-fold shape, and the multi-fold structure can increase the filtering area and the water flux; the filter material 6 is made of modified glass fiber materials, and the modified glass fibers can improve the filtering efficiency, the fatigue damage resistance and other performances and reduce the leaching amount of silicon dioxide. The filter material 6 has wide filtering precision range and can filter activated corrosion products and suspended solid particles with the particle size of 0.1-100 mu m.
The protective net 5 wraps the outer side of the filter material 6 and is of a rhombic net structure and used for fixing and protecting the filter material 6.
The cross-section of Y type sealing washer 2 is the Y type, including sealing washer main part 21, sealing washer inner lip 22 and sealing washer outer lip 23, and sealing washer inner lip 22 is close to the interior side of upper end cover 3, and sealing washer outer lip 23 is close to the casing side. The Y-shaped sealing ring 2 is made of ethylene propylene diene monomer rubber, the material is excellent in radiation resistance and soaking resistance, and the unique structure and material ensure that the sealing performance between the filter element and the shell meets the use requirement.
Handle 1 includes handle ring 11 and landing leg 12, and handle ring 11 is connected with upper end cover 3 through three landing legs 12, and handle ring 1's surface is coarse, and the friction when the filter core is snatched to arbitrary direction in the gripping instrument that can increase in coarse design snatchs firmly to greatly reduced the automatic degree of difficulty of snatching of filter core, shortened radioactive operation time, make things convenient for the change of filter core more.
The method for manufacturing and using the water filter cartridge for treating radioactive water provided by the embodiment is as follows:
firstly, making a modified filter material into a multi-fold structure, then rotating the filter material for a circle, and adhering two opening and closing surfaces of the filter material by using an adhesive to form a cylindrical shape; the upper end cover 3 and the lower end cover 7 are respectively adhered with the upper circular end and the lower circular end of the filter material 6 by using an adhesive 4 to form a whole; the Y-ring 2 is fitted into a groove in the upper end cap 3 to form a water filter cartridge for treating radioactive water.
When the filter is used, the whole filter element is placed into the shell of the filter through the handle 1, and the Y-shaped sealing ring is more convenient to assemble with the shell due to the unique structural characteristics. In the working process, when water flows into the upper end cover 3 of the filter element, a part of the water flows can impact the Y-shaped sealing ring 2, and at the moment, the outer lip 23 of the Y-shaped sealing ring 2 can be spread, so that the sealing between the upper end cover 3 and the shell is better realized. The Y-shaped sealing ring 2 can still keep enough strength after being deformed, so that a good sealing effect is kept between the filter element and the shell, and pollution caused by outflow of untreated process water is avoided.
By adopting the Y-shaped sealing ring, the problem that the sealing effect is influenced due to corrosion and deformation of radioactive process wastewater of a nuclear power plant to seal is solved; by adopting the modified glass fiber filter material with different filter precisions and the multi-fold structure, the filter precision requirements of various water treatment systems of a nuclear power plant can be met, and a feasible technical route is provided for realizing the localization of the water filter element for treating radioactive water.
The above-described embodiments are merely illustrative of the present invention, which may be embodied in other specific forms or in other specific forms without departing from the spirit or essential characteristics thereof. The described embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention should be indicated by the appended claims, and any changes that are equivalent to the intent and scope of the claims should be construed to be included therein.
Claims (10)
1. The utility model provides a water filter core for handling radioactive water, its characterized in that, the filter core includes filter media (6), the lower extreme is provided with upper end cover (3) and lower extreme cover (7) respectively about filter media (6), filter media (6) surface covering has protection net (5), it has an annular groove to open on upper end cover (3) cylinder, be provided with Y type sealing washer (2) in the recess.
2. A water filter cartridge for the treatment of radioactive water according to claim 1, wherein said upper end cap (3) and said lower end cap (8) are integrally connected to said filter medium (6) by means of an adhesive (4).
3. A water filter cartridge for the treatment of radioactive water according to claim 2, wherein a handle (1) is provided above the upper end cap (3), the handle (1) comprising a handle ring (11) and handle legs (12), the handle ring (11) being connected with the upper end cap (3) through the handle legs (11).
4. A water filter cartridge for the treatment of radioactive water according to any one of claims 1 to 3, wherein said filter medium (6) has a cylindrical shape and a surface in the form of a plurality of pleats.
5. A water filter cartridge for the treatment of radioactive water according to claim 4, wherein the material of the filter medium (6) is modified glass fiber.
6. The water filter cartridge for the treatment of radioactive water according to claim 4, wherein the filtering accuracy of said filter medium (6) is 0.1 μm to 100 μm.
7. A water filter cartridge for the treatment of radioactive water according to claim 6, wherein the cross section of the Y-shaped sealing ring (2) is Y-shaped.
8. The water filter cartridge for the treatment of radioactive water according to claim 7, wherein the Y-shaped sealing ring (2) comprises a sealing ring body (21), a sealing ring inner lip (22) and a sealing ring outer lip (23).
9. The water filter cartridge for the treatment of radioactive water according to claim 8, wherein the material of the Y-shaped sealing ring (2) is ethylene propylene diene monomer.
10. A water filter cartridge for the treatment of radioactive water according to claim 9, wherein the protective mesh (5) is a diamond mesh structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110405370.3A CN113230712A (en) | 2021-04-15 | 2021-04-15 | Water filter element for treating radioactive water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110405370.3A CN113230712A (en) | 2021-04-15 | 2021-04-15 | Water filter element for treating radioactive water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113230712A true CN113230712A (en) | 2021-08-10 |
Family
ID=77128040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110405370.3A Pending CN113230712A (en) | 2021-04-15 | 2021-04-15 | Water filter element for treating radioactive water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113230712A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040238440A1 (en) * | 2003-05-29 | 2004-12-02 | Clendenning Michael Andrew | Porous filter |
| CN201055719Y (en) * | 2007-07-05 | 2008-05-07 | 上海核工程研究设计院 | Filter element of filter |
| CN107537213A (en) * | 2017-09-01 | 2018-01-05 | 中核核电运行管理有限公司 | It is a kind of can blowdown online y-type filter |
| CN107654650A (en) * | 2017-10-30 | 2018-02-02 | 深圳市力德科技有限公司 | A kind of Y types high resiliency double-lip sealing ring and sealing structure |
| CN208229482U (en) * | 2018-04-02 | 2018-12-14 | 宁波埃美柯铜阀门有限公司 | A kind of running water system filter with visor function |
| CN208660514U (en) * | 2018-06-27 | 2019-03-29 | 中国科学院金属研究所 | an oil filter |
| CN212017002U (en) * | 2020-01-08 | 2020-11-27 | 中国辐射防护研究院 | Nuclear power unit radioactive water treatment is with filter core handle structure |
-
2021
- 2021-04-15 CN CN202110405370.3A patent/CN113230712A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040238440A1 (en) * | 2003-05-29 | 2004-12-02 | Clendenning Michael Andrew | Porous filter |
| CN201055719Y (en) * | 2007-07-05 | 2008-05-07 | 上海核工程研究设计院 | Filter element of filter |
| CN107537213A (en) * | 2017-09-01 | 2018-01-05 | 中核核电运行管理有限公司 | It is a kind of can blowdown online y-type filter |
| CN107654650A (en) * | 2017-10-30 | 2018-02-02 | 深圳市力德科技有限公司 | A kind of Y types high resiliency double-lip sealing ring and sealing structure |
| CN208229482U (en) * | 2018-04-02 | 2018-12-14 | 宁波埃美柯铜阀门有限公司 | A kind of running water system filter with visor function |
| CN208660514U (en) * | 2018-06-27 | 2019-03-29 | 中国科学院金属研究所 | an oil filter |
| CN212017002U (en) * | 2020-01-08 | 2020-11-27 | 中国辐射防护研究院 | Nuclear power unit radioactive water treatment is with filter core handle structure |
Non-Patent Citations (2)
| Title |
|---|
| 孔海霞等: "国内核电站放射性水处理系统用水过滤器滤芯现状和探讨", 《辐射防护》 * |
| 肖旺群: "《高端装备工业设计创新研究与实践》", 31 August 2018, 华东理工大学出版社 * |
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