CN113838590B - Ion purifier, lifting tool, spent fuel storage system and purification method - Google Patents
Ion purifier, lifting tool, spent fuel storage system and purification method Download PDFInfo
- Publication number
- CN113838590B CN113838590B CN202111111475.4A CN202111111475A CN113838590B CN 113838590 B CN113838590 B CN 113838590B CN 202111111475 A CN202111111475 A CN 202111111475A CN 113838590 B CN113838590 B CN 113838590B
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- sealing plate
- plate
- hanging basket
- purification
- lifting
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- 239000002915 spent fuel radioactive waste Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000000746 purification Methods 0.000 title claims description 89
- 238000007789 sealing Methods 0.000 claims abstract description 128
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 230000002285 radioactive effect Effects 0.000 claims abstract description 65
- 238000005342 ion exchange Methods 0.000 claims abstract description 61
- 239000011148 porous material Substances 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 description 55
- 230000008569 process Effects 0.000 description 7
- 238000010926 purge Methods 0.000 description 7
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- G21F9/12—Processing by absorption; by adsorption; by ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
- G21C19/06—Magazines for holding fuel elements or control elements
- G21C19/07—Storage racks; Storage pools
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/28—Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core
- G21C19/30—Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products deterioration or corrosion products, impurities, e.g. by cold traps
- G21C19/307—Arrangements for introducing fluent material into the reactor core; Arrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products deterioration or corrosion products, impurities, e.g. by cold traps specially adapted for liquids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention discloses an ion purifier, a lifting tool for the ion purifier, a spent fuel storage system and a method for purifying radioactive pond water. The ion purifier comprises a cylinder body, a purifying component and a pump body, wherein the purifying component is arranged in the cylinder body and comprises a first purifying hanging basket and a second purifying hanging basket, the first purifying hanging basket is arranged above the second purifying hanging basket and comprises a first ion exchange layer, a first sealing plate and a second sealing plate, the second purifying hanging basket comprises a second ion exchange layer, a third sealing plate and a fourth sealing plate, the first sealing plate and the second sealing plate are respectively used for sealing the upper end and the lower end of the first ion exchange layer, the third sealing plate and the fourth sealing plate are used for sealing the upper end and the lower end of the second ion exchange layer, and the sealing mode can effectively control the water in the radioactive pond to pass through the first ion exchange layer and the second ion exchange layer respectively, so that the purifying efficiency of the ion purifier is improved.
Description
Technical Field
The invention belongs to the technical field of nuclear industry, and particularly relates to an ion purifier, a lifting tool for the ion purifier, a spent fuel storage system and a method for purifying radioactive pond water.
Background
In a spent fuel wet storage facility, during storage of spent fuel in a storage pool, attachments deposited on the exterior of the spent fuel assembly, typically elements such as strontium, cesium, cobalt with radioactivity, are released into the pool water, which increases the radioactivity concentration in the storage pool, thus necessitating pool water purification to maintain acceptable pollution and radiation levels in the pool water. The ion exchanger is a key device for purifying the water quality of the pool water and maintaining the radioactive concentration of the pool water not to exceed the limit value, and the ion exchanger is used for treating the pool water by utilizing ion exchange materials, so that radioactive metal cations, fluorine, chlorine and other anions in the pool water for accelerating corrosion of stainless steel can be effectively removed, the radioactivity of the pool water is ensured not to exceed the limit value, and the safety of workers is ensured.
In prior art, be applied to the pond water purification system in spent fuel storage pond include ion purifier the inside purification subassembly that is provided with of ion purifier, because its purification subassembly's structural setting is unreasonable, leads to its purification efficiency lower, purifying effect is relatively poor to its purification subassembly is inconvenient for maintenance and change.
In addition, at present, purification modes of spent fuel storage pools in China all adopt purification outside the pool, namely an ion purifier is arranged outside the pool, and purification is carried out by pumping pool water outside the pool, so that huge and complex power, a pipeline system and a large equipment room are required for arranging a purification device for the large spent fuel storage pool, the construction and operation cost is high, and the risk of radioactive pool water leakage exists.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provides an ion purifier, a lifting tool for the ion purifier, a spent fuel storage system and a radioactive pond water purifying method. The ion purifier has high purification efficiency.
In order to solve the problems, the invention adopts the following technical scheme:
the ion purifier comprises a cylinder body, a purifying assembly and a pump body, wherein the cylinder body is hung in a storage pool, the ion purifier comprises a first cylinder body and a second cylinder body, the first cylinder body is arranged above the second cylinder body and is communicated with the second cylinder body, and the pump body is arranged in the first cylinder body and is used for sucking radioactive pool water in the storage pool into the first cylinder body; the purification assembly comprises a first purification hanging basket and a second purification hanging basket, the first purification hanging basket and the second purification hanging basket are arranged in the second cylinder body, the first purification hanging basket comprises a first ion exchange layer, a first sealing plate and a second sealing plate, a first through hole is formed in the center of the first ion exchange layer, the first sealing plate is fixedly mounted on the upper end face of the first ion exchange layer, a first central hole aligned with the first through hole is formed in the center of the first sealing plate, the second sealing plate is fixedly mounted on the lower end face of the first ion exchange layer, radioactive pond water pumped by the pump body enters the first central hole, then passes through the first ion exchange layer, then flows out from a gap between the outer wall of the second sealing plate and the inner wall of the second cylinder body, the second purification hanging basket comprises a second ion exchange layer, a third sealing plate and a fourth sealing plate, a second through hole is formed in the center of the second ion exchange layer, the third sealing plate is fixedly mounted on the upper end face of the second ion exchange layer, the second sealing plate is fixedly mounted on the second end face of the second ion exchange layer, the second sealing plate passes through the second central hole and then flows out from the second through hole, and then passes through the second central hole and the second sealing plate.
Preferably, the outer diameter of the first ion exchange layer is the same as the outer diameters of the first and second sealing plates and is smaller than the inner diameter of the second cylinder, and the outer diameter of the second ion exchange layer is the same as the outer diameters of the third and fourth sealing plates and is smaller than the inner diameter of the second cylinder.
Preferably, the ion purifier further comprises a supporting component, the supporting component comprises a pore plate and a ring plate, the pore plate is embedded at the bottom end of the second cylinder body, a third central hole is formed in the center of the pore plate, the third central hole is aligned with the second central hole, the second purification hanging basket is supported on the pore plate, the ring plate is embedded on the inner wall of the second cylinder body and is positioned above the pore plate, a through hole is formed in the center of the ring plate, the inner diameter of the through hole of the ring plate is larger than the outer diameter of the first purification hanging basket and the second purification hanging basket, a plurality of supporting blocks which are uniformly distributed along the circumferential direction of the supporting blocks are arranged on the outer periphery of the bottom of the second sealing plate, and the diameter of a circular ring where the supporting blocks are located is larger than the inner diameter of the ring plate and used for supporting the first purification hanging basket on the ring plate.
Preferably, the support assembly further comprises a plurality of guide plates, the guide plates are uniformly distributed on the inner wall of the second cylinder at intervals, and the diameter of a circular ring formed by the inner ends of the guide plates is slightly larger than the outer diameters of the first purifying hanging basket and the second purifying hanging basket.
Preferably, the ion purifier further comprises a lifting assembly, the lifting assembly comprises a first lifting interface and a second lifting interface, the first lifting interface is annular, is arranged on the first sealing plate and is fixedly connected to the inner wall of the first central hole, the upper end of the second purifying hanging basket is of a concave structure with a concave center, and correspondingly, the third sealing plate is of a concave structure with a concave center, and the second lifting interface is annular and is fixedly connected to the inner wall of the concave structure of the third sealing plate.
Preferably, the second purifying hanging basket further comprises a compression spring, wherein the compression spring is fixedly arranged on the upper end face of the third sealing plate and is in extrusion contact with the second sealing plate so as to compress the second purifying hanging basket.
Preferably, the ion purifier further comprises a sealing assembly, the sealing assembly comprises a first sealing ring and a second sealing ring, a first annular groove is formed in the top end of the inner ring of the first sealing plate, the first annular groove is located at the outer side of the first through hole, the first sealing ring is fixedly installed in the first groove, an end plate is arranged at the lower end of the first cylinder body, a fourth central hole is formed in the end plate, the fourth central hole is aligned with the first through hole, the first sealing ring is tightly pressed under the action of the end plate, so that radioactive pond water can only enter the first through hole through the fourth central hole, a second annular groove is formed in the bottom end of the inner ring of the fourth sealing plate, the second annular groove is located at the outer side of the second central hole, the second sealing ring is fixedly installed in the second annular groove, and the second sealing ring and the pore plate are tightly pressed mutually, and the radioactive pond water can only be discharged through the second central hole and the third central hole.
Preferably, the ion purifier further comprises a measuring unit, the dosage of the measuring unit comprises a plurality of dosage measuring instruments, a plurality of supports and a monitor, the supports are uniformly arranged on the outer wall of the second cylinder at intervals, the dosage measuring instruments are installed on the supports and can axially stretch and slide along the supports to be used for measuring the radioactive dosage rate of the radioactive pond water in the storage pond, and the monitor is electrically connected with the dosage measuring instruments and is used for receiving the radioactive dosage rate measured by the dosage measuring instruments.
Preferably, the ion purifier further comprises a drainage base and a support frame, wherein the drainage base is fixedly connected with the pore plate at the bottom of the second cylinder body, an input port of the drainage base is communicated with the third central hole, a plurality of drainage ports are uniformly formed in the drainage base along the circumferential direction of the drainage base, purified radioactive pond water enters the drainage base through the input port of the drainage base and returns to the storage pond along the drainage ports of the drainage base, and the support frame is fixedly arranged on a pond wall of the storage pond and used for supporting the drainage base and the cylinder body.
The invention also provides a lifting tool which is used for lifting the ion purifier, the lifting tool comprises a lifting shaft, a guide ring, lifting lugs and lifting hooks, the lifting shaft is of a columnar structure, the diameter of the lifting shaft is smaller than the inner diameter of the first central hole and the diameter of the concave structure of the third sealing plate, the lifting hooks are arranged at the bottom end of the lifting shaft and are used for being connected with the first lifting interface or the second lifting interface so as to lift the first purifying hanging basket or the second purifying hanging basket, the guide ring is fixedly arranged on the lifting shaft, the circular ring surface of the guide ring is perpendicular to the lifting shaft, the diameter of the guide ring is smaller than the inner diameters of the first cylinder and the second cylinder, and the lifting lugs are arranged at the top end of the lifting shaft.
The invention also provides a spent fuel storage system which comprises a storage pool and the ion purifier, wherein the storage pool is used for storing spent fuel and radioactive pool water, and the ion purifier is fixedly connected to the pool wall of the storage pool.
The invention also provides a method for purifying the radioactive pond water, which comprises the following steps:
the ion purifier is arranged in a storage water tank, wherein a water inlet hole of the ion purifier is positioned below the liquid level in the storage water tank,
the radioactive pond water in the storage pond enters the ion purifier to finish purification,
the purified radioactive pond water is discharged from the outlet of the ion purifier into the storage pond.
The purification assembly comprises the first purification hanging basket and the second purification hanging basket, and the radioactive pond water sequentially passes through the first ion exchange layer of the first purification hanging basket and the second ion exchange layer of the second purification hanging basket from top to bottom, so that the contact area and the contact time of the radioactive pond water and the ion exchange layer are effectively increased, the purification efficiency of the radioactive pond water is further improved, and the radioactive pond water is convenient to replace.
Drawings
FIG. 1 is a schematic view of the water flow during operation of the ion purifier of example 1 of the present invention;
fig. 2 is a schematic structural view of a second cylinder in embodiment 1 of the present invention;
FIG. 3 is a schematic view in the direction A of FIG. 2;
FIG. 4 is a schematic view in the direction B of FIG. 2;
fig. 5 is a schematic view of the structure of the first purifying basket in embodiment 1 of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5;
FIG. 7 is a schematic view in the direction C of FIG. 5;
fig. 8 is a schematic structural view of a second purifying basket in embodiment 1 of the present invention;
fig. 9 is a schematic structural view of a lifting tool in embodiment 2 of the present invention;
FIG. 10 is a schematic view in the direction D of FIG. 9;
fig. 11 is a schematic structural view of a first cylinder in embodiment 1 of the present invention;
FIG. 12 is a schematic view showing a process of installing a first purge basket and a second purge basket according to embodiment 2 of the present invention;
FIG. 13 is a second schematic view of the installation process of the first and second purge baskets in embodiment 2 of the present invention;
FIG. 14 is a schematic view of a third process of installing a first purge basket and a second purge basket in embodiment 2 of the present invention;
FIG. 15 is a schematic view showing a process of installing a first purge basket and a second purge basket in embodiment 2 of the present invention;
fig. 16 is a schematic structural diagram of a spent fuel storage system in embodiment 3 of the invention.
In the figure: 1-first cylinder, 11-end plate, 12-water inlet, 2-second cylinder, 3-first purification basket, 31-first through hole, 32-first center hole, 33-first sealing plate, 34-second sealing plate, 35-support block, 36-first ion exchange layer, 4-second purification basket, 41-second through hole, 42-third sealing plate, 43-fourth sealing plate, 44-second center hole, 45-third center hole, 46-fourth center hole, 47-compression spring, 48-second ion exchange layer, 5-orifice plate, 51-annular plate, 52-guide plate, 6-drainage base, 61-drainage port, 7-support frame, 8-lifting tool, 81-lifting hook, 82-first lifting interface, 83-second lifting interface, 84-lifting lug, 85-lifting axle, 86-guide ring, 9-support frame, 10-dosage measuring instrument, 101-pump body, 102-storage pool, 103-first sealing ring, 104-second sealing ring, 105-lifting crane.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent, and the embodiments described in detail, but not necessarily all, in connection with the accompanying drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be noted that the orientation or positional relationship indicated by "upper" or the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience and simplicity of description, and is not meant to indicate or imply that the apparatus or element to be referred to must be provided with a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "configured," "mounted," "secured," and the like are to be construed broadly and may be either fixedly connected or detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood by those skilled in the art in specific cases.
The invention provides an ion purifier, which comprises a cylinder body, a purifying component and a pump body, wherein the cylinder body is hung in a storage pool, the ion purifier comprises a first cylinder body and a second cylinder body, the first cylinder body is arranged above the second cylinder body and is communicated with the second cylinder body, and the pump body is arranged in the first cylinder body and is used for sucking radioactive pool water in the storage pool into the first cylinder body; the purification assembly comprises a first purification hanging basket and a second purification hanging basket, the first purification hanging basket and the second purification hanging basket are arranged in the second cylinder body, the first purification hanging basket comprises a first ion exchange layer, a first sealing plate and a second sealing plate, a first through hole is formed in the center of the first ion exchange layer, the first sealing plate is fixedly mounted on the upper end face of the first ion exchange layer, a first central hole aligned with the first through hole is formed in the center of the first sealing plate, the second sealing plate is fixedly mounted on the lower end face of the first ion exchange layer, radioactive pond water pumped by the pump body enters the first central hole, then passes through the first ion exchange layer, then flows out from a gap between the outer wall of the second sealing plate and the inner wall of the second cylinder body, the second purification hanging basket comprises a second ion exchange layer, a third sealing plate and a fourth sealing plate, a second through hole is formed in the center of the second ion exchange layer, the third sealing plate is fixedly mounted on the upper end face of the second ion exchange layer, the second sealing plate is fixedly mounted on the second end face of the second ion exchange layer, the second sealing plate passes through the second central hole and then flows out from the second through hole, and then passes through the second central hole and the second sealing plate.
The invention also provides a lifting tool which is used for lifting the ion purifier, the lifting tool comprises a lifting shaft, a guide ring, lifting lugs and lifting hooks, the lifting shaft is of a columnar structure, the diameter of the lifting shaft is smaller than the inner diameter of the first central hole and the diameter of the concave structure of the third sealing plate, the lifting hooks are arranged at the bottom end of the lifting shaft and are used for being connected with the first lifting interface or the second lifting interface so as to lift the first purifying hanging basket or the second purifying hanging basket, the guide ring is fixedly arranged on the lifting shaft, the circular ring surface of the guide ring is perpendicular to the lifting shaft, the diameter of the guide ring is smaller than the inner diameters of the first cylinder body and the second cylinder body, and the lifting lugs are arranged at the top end of the lifting shaft.
The invention also provides a spent fuel storage system which comprises a storage pool and the ion purifier, wherein the storage pool is used for storing spent fuel, radioactive pool water is contained in the pool, and the ion purifier is fixedly connected to the pool wall of the storage pool.
The invention also provides a method for purifying the radioactive pond water, which comprises the following steps:
the ion purifier is arranged in a storage water tank, wherein a water inlet hole of the ion purifier is positioned below the liquid level in the storage water tank,
the radioactive pond water in the storage pond enters the ion purifier to finish purification,
the purified radioactive pond water is discharged from the outlet of the ion purifier into the storage pond.
Example 1
As shown in fig. 5 and 8, the embodiment discloses an ion purifier, which comprises a cylinder, a purifying component and a pump body 101, wherein the cylinder is hung in a pool of a storage pool 102 and comprises a first cylinder 1 and a second cylinder 2, the first cylinder 1 is arranged above the second cylinder 2 and is communicated with the second cylinder, and the pump body 101 is arranged in the first cylinder 1 and is used for sucking radioactive pool water in the storage pool 102 into the first cylinder 1; the purification assembly comprises a first purification hanging basket 3 and a second purification hanging basket 4, the first purification hanging basket 3 and the second purification hanging basket 4 are arranged in the second cylinder 2, the first purification hanging basket 3 comprises a first ion exchange layer 36, a first sealing plate 33 and a second sealing plate 34, a first through hole 31 is formed in the center of the first ion exchange layer 36, the first sealing plate 33 is fixedly arranged on the upper end face of the first ion exchange layer 36, a first center hole 32 which is aligned with the first through hole 31 is formed in the center of the first sealing plate 33, the second sealing plate 34 is fixedly arranged on the lower end face of the first ion exchange layer 36, radioactive pond water pumped by the pump body 101 enters the first through hole 31 from the first center hole 32, then passes through the first ion exchange layer 36, then flows out of a gap between the outer wall of the second sealing plate 34 and the inner wall of the second cylinder 2, the second purification hanging basket 4 comprises a second ion exchange layer 48, a third sealing plate 42 and a fourth sealing plate 43, a first center hole 32 which is aligned with the first through hole 48 is formed in the center of the second ion exchange layer, then passes through hole 48, and then passes through the second center hole 44, and then passes through the second center hole 48, and the second hole 48 and the second hole 44, and the second sealing plate 34.
In the present embodiment, the first ion exchange layer 36 and the second ion exchange layer 48 are annular regions, and the ion purification material is filled in the annular regions, and the ion purification material may be resin, specifically, includes a negative resin and a positive resin, and the negative resin and the positive resin are filled in the annular regions according to a certain ratio.
In the present embodiment, the outer diameter of the first ion exchange layer 36 is the same as the outer diameters of the first and second sealing plates 33 and 34 and is smaller than the inner diameter of the second cylinder 2, and the outer diameter of the second ion exchange layer 48 is the same as the outer diameters of the third and fourth sealing plates 42 and 43 and is smaller than the inner diameter of the second cylinder 2. Thereby facilitating the installation of the first and second purification baskets 3, 4 inside the second drum 2.
As shown in fig. 2, 3 and 4, the ion purifier further includes a support assembly, the support assembly includes an orifice plate 5 and a ring plate 51, the orifice plate 5 is embedded in the bottom end of the second cylinder 2, the outer diameter of the orifice plate 5 is the same as the inner diameter of the second cylinder 2, a third central hole 45 is provided in the center of the orifice plate, the third central hole 45 is aligned with the second central hole 44, the second purification hanging basket 4 is supported on the orifice plate 5, the ring plate 51 is embedded on the inner wall of the second cylinder 2 and is located above the orifice plate 5, the outer diameter of the ring plate 51 is the same as the inner diameter of the second cylinder 2, a through hole is provided in the center of the ring plate 51, and the inner diameter of the through hole of the ring plate 51 is larger than the outer diameters of the first purification hanging basket 3 and the second purification hanging basket 4, so that the second purification hanging basket 4 can smoothly pass through the through hole of the ring plate 51 in the installation process.
As shown in fig. 5 and 7, a plurality of supporting blocks 35 are uniformly distributed along the circumferential direction on the outer periphery of the bottom of the second sealing plate 34, and the diameter of the ring on which the outer edges of the supporting blocks 35 are positioned is larger than the inner diameter of the through hole of the ring plate 51, so as to support the first purifying hanging basket 3 on the ring plate 51. In this embodiment, the number of the supporting blocks 35 is 3, and the supporting blocks are uniformly distributed along the outer circumference of the second sealing plate 34, and the adjacent two supporting blocks 35 form a central angle of 120 °.
As shown in fig. 3 and 4, the support assembly further includes a plurality of guide plates 52, the guide plates 52 are provided in a plurality of elongated shapes, the guide plates 52 are uniformly distributed on the inner wall of the second cylinder 2 at intervals, and extend from the top of the second cylinder 2 to the bottom of the second cylinder 2. In this embodiment, 3 guide plates 52 are provided, and a central angle of 120 ° is formed between two adjacent guide plates 52, and inner ends of three guide plates 52 are located on the same ring, and their diameters are slightly larger than outer diameters of the first purification basket 3 and the second purification basket 4, so as to guide and position the first purification basket 3 and the second purification basket 4 during installation, and prevent collision and blocking with the inner wall of the cylinder. In the case of installing the first purification basket 3, it is necessary to rotate the support block 35 to a position offset from the guide plate 52.
As shown in fig. 6 and 8, the ion purifier further includes a lifting tool 8, where the lifting tool 8 includes a first lifting interface 82 and a second lifting interface 83, the first lifting interface 82 is in a ring shape, and is disposed on the first sealing plate 33 and is fixedly connected to the inner wall of the first central hole 32, the upper end of the second purifying hanging basket 4 is in a concave structure with a concave center, and correspondingly, the third sealing plate 42 is in a concave structure with a concave center, and the second lifting interface 83 is in a ring shape and is fixedly connected to the inner wall of the concave structure of the third sealing plate 42.
As shown in fig. 8, in the present embodiment, the second purifying basket 4 further includes a pressing spring 47, and the pressing spring 47 is fixedly provided on the upper end surface of the third sealing plate 42, which is in pressing contact with the second sealing plate 34, so as to press the second purifying basket 4.
As shown in fig. 6, the ion purifier further includes a sealing assembly, the sealing assembly includes a first sealing ring 103 and a second sealing ring 104, the first sealing ring 103 and the second sealing ring 104 are annular sealing rings, correspondingly, a first annular groove is provided at the top end of the inner ring of the first sealing plate 33, the first annular groove is located at the outer side of the first through hole 31, and the first sealing ring 103 is fixedly installed in the first groove.
As shown in fig. 11, the lower end of the first cylinder 1 is provided with an end plate 11, the end plate 11 is provided with a fourth central hole 46, the fourth central hole 46 is aligned with the first through hole 31, the end plate 11 is pressed against the first sealing plate 33, and the first sealing ring 103 is pressed, so that the radioactive pond water can only enter the first through hole 31 through the fourth central hole 46.
As shown in fig. 8, a second annular groove is formed at the bottom end of the inner ring of the fourth sealing plate 43, the second annular groove is located at the outer side of the second central hole 44, a second sealing ring 104 is fixedly installed in the second annular groove, and the second sealing ring 104 and the pore plate 5 are mutually pressed, so that the radioactive pool water can only be discharged through the second central hole 44 and the third central hole 45.
As shown in fig. 16, the ion purifier further comprises a measuring unit, the dosage of the measuring unit comprises a dosage measuring instrument 10, a support 9 and a monitor, the support 9 is provided with a plurality of supports 9, the plurality of supports 9 are uniformly arranged on the outer wall of the second cylinder 2 at intervals, the dosage measuring instrument 10 is installed on the support 9 and can slide in an axial telescopic manner along the support, the dosage measuring instrument is used for measuring the radioactive dosage rate of the radioactive pond water in the storage pond 102, and the monitor is electrically connected with the dosage measuring instrument 10 and is used for receiving the radioactive dosage rate measured by the dosage measuring instrument 10, so that the radioactive dosage rates of different positions of the first purifying hanging basket 3 and the second purifying hanging basket 4 can be monitored at any time.
As shown in fig. 1, the ion purifier further includes a drainage base 6 and a support frame 7, the drainage base 6 is fixedly connected with the orifice plate 5, an input port thereof is communicated with the third central hole 45, the drainage base 6 is uniformly provided with a plurality of drainage ports 61 along a circumferential direction thereof, and purified radioactive pool water enters the drainage base 6 through the input port of the drainage base 6 and returns to the storage pool 102 along the drainage ports 61 thereof. In this embodiment, the number of the drainage ports 61 is 3, and the adjacent two drainage ports 61 form a central angle of 120 ° therebetween, so that the purified radioactive pond water is uniformly discharged to the periphery of the ion purifier. The supporting frame 7 is fixedly arranged on the wall of the storage pool 102 and is used for supporting the drainage base 6 and the cylinder.
As shown in fig. 1, under the action of the pump body 101, the radioactive pond water enters from the water inlet 12 of the first cylinder 1, flows into the first through hole 31 of the first purification basket 3 along the fourth central hole 46 and the first central hole 32, at this time, the radioactive pond water passes through the first ion exchange layer 36, flows along the gap between the first ion exchange layer 36 and the second cylinder 2, then flows down through the gap between the second sealing plate 34 and the inner wall of the second cylinder 2, enters the second purification basket 4, continues to flow down along the gap between the second ion exchange layer 48 and the inner wall of the second cylinder 2, then passes through the second ion exchange layer 48, enters the second through hole 41, continues to flow downwards, finally flows into the drain base 6 along the second central hole 44 and the third central hole 45, and is discharged into the storage pond 102 through the drain base 6.
In this embodiment, the ion purifier is fixedly disposed in the spent fuel storage pool 102, and the purification assembly in the ion purifier includes the first purification hanging basket 3 and the second purification hanging basket 4 which are separately disposed, and the radioactive pool water sequentially passes through the first ion exchange layer 36 and the second ion exchange layer 48 in different sealing modes, so that the contact area and the contact time of the radioactive pool water and the ion purification material are prolonged, and the purification efficiency of the ion purifier is effectively increased.
Example 2
As shown in fig. 9 and 10, this embodiment discloses a lifting tool 8 for lifting an ion purifier in embodiment 1, the lifting tool 8 includes a lifting shaft 85, a guide ring 86, lifting lugs 84, and a lifting hook 81, the lifting shaft 85 is in a columnar structure, the diameter of the lifting shaft is smaller than the inner diameter of the first central hole 32 and the diameter of the concave structure of the third sealing plate 42, the lifting hook 81 is arranged at the bottom end of the lifting shaft 85 and is used for being connected with a first lifting interface 82 or a second lifting interface 83 to lift the first purification hanging basket 3 or the second purification hanging basket 4, the guide ring 86 is fixedly arranged on the lifting shaft 85, the circular ring surface of the guide ring 86 is perpendicular to the lifting shaft 85, the diameter of the guide ring 86 is smaller than the inner diameters of the first cylinder 1 and the second cylinder 2, and the lifting lugs 84 are arranged at the top end of the lifting shaft 85.
The lifting process is as follows:
the lifting truck 105 is used to connect with the lifting lug 84 of the lifting tool 8, thereby lifting the lifting tool 8,
as shown in fig. 12 and 13, the lifting hook 81 of the lifting tool 8 is connected with the second lifting interface 83 to lift the second purifying hanging basket 4, and the second purifying hanging basket 4 is lowered along the guide plate 52 until the bottom end of the fourth sealing plate 43 contacts with the orifice plate 5, so that the second purifying hanging basket 4 is mounted in the second cylinder 2;
as shown in fig. 14 and 15, the lifting hook 81 is removed from the second lifting interface 83 and connected with the first lifting interface 82, so that the first purifying hanging basket 3 is lifted up and lowered along the guide plate 52 until the supporting block 35 on the second sealing plate 34 abuts against the annular plate 51, so that the first purifying hanging basket 3 is mounted in the second cylinder 2;
finally, the lifting hook 81 is removed from the first lifting interface 82.
Lifting device 8 in this embodiment belongs to gravity type gripping apparatus, need not power device, can adapt the handling interface of two purification hanging flower baskets, and guide ring 86 on lifting device 8 can be used to assist in the location when snatching second purification hanging flower basket 4, improves the success rate of hoist and mount, and then improves the installation and the change efficiency of first purification hanging flower basket 3 and second purification hanging flower basket 4.
Example 3
The embodiment discloses a spent fuel storage system, which comprises a storage pool 102 and an ion purifier in embodiment 1, wherein the storage pool 102 is used for storing spent fuel, radioactive pool water is contained in the pool, and the ion purifier is fixedly connected to the pool wall of the storage pool 102.
In this embodiment, the ion purifier can complete the purification process of the radioactive pond water in the storage pond 102, and return the purified radioactive pond water to the storage pond 102, and the radioactivity of the radioactive pond water in the storage pond 102 can be kept within the standard range all the time during the circulation process.
Example 4
The embodiment discloses a method for purifying water in a radioactive pond, which comprises the following steps:
the ion purifier of embodiment 1 is installed in the storage water tank 102 by fixing the support frame 7 to the tank wall of the storage water tank 102, wherein the inlet of the ion purifier is located below the liquid surface in the storage water tank 102, the radioactive tank water enters the inside of the first cylinder 1 by the pump body 101, and flows into the first through hole 31 of the first purification basket 3 through the fourth center hole 46,
the radioactive pond water in the storage pond 102 flows through the first purifying basket 3 and the second purifying basket 4 in sequence, the purifying process is completed, and finally flows into the drain base 6 from the third central hole 45,
the purified radioactive pond water is uniformly discharged from the drain port 61 of the drain base 6 into the storage pond 102.
In the embodiment, the purification process of the radioactive pond water is completed in the storage pond 102 without pumping water to the outside of the storage pond 102, so that the process flow is reduced, the purification efficiency of the nuclear sewage is effectively improved, the ion purifier can be installed in a large spent fuel storage pond as modularized equipment, and the defect of an external purification system of the pond is effectively overcome.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.
Claims (12)
1. An ion purifier is characterized by comprising a cylinder body, a purifying component and a pump body (101),
the cylinder body is hung in a pool of the storage pool (102) and comprises a first cylinder body (1) and a second cylinder body (2), the first cylinder body (1) is arranged above the second cylinder body (2) and is communicated with the second cylinder body,
the pump body (101) is arranged in the first cylinder (1) and is used for sucking radioactive pond water in the storage pond (102) into the first cylinder (1);
the purification assembly comprises a first purification hanging basket (3) and a second purification hanging basket (4), the first purification hanging basket (3) and the second purification hanging basket (4) are both arranged in the second cylinder (2),
the first purification hanging basket (3) comprises a first ion exchange layer (36), a first sealing plate (33) and a second sealing plate (34), a first through hole (31) is formed in the center of the first ion exchange layer (36),
the first sealing plate (33) is fixedly arranged on the upper end surface of the first ion exchange layer (36), a first central hole (32) aligned with the first through hole (31) is arranged in the center of the first sealing plate (33),
the second sealing plate (34) is fixedly arranged on the lower end face of the first ion exchange layer (36), the radioactive pool water pumped by the pump body (101) enters the first through hole (31) from the first central hole (32), then passes through the first ion exchange layer (36) and flows out from a gap between the outer wall of the second sealing plate (34) and the inner wall of the second cylinder (2),
the second purification hanging basket (4) comprises a second ion exchange layer (48), a third sealing plate (42) and a fourth sealing plate (43), a second through hole (41) is formed in the center of the second ion exchange layer (48), the third sealing plate (42) is fixedly arranged on the upper end face of the second ion exchange layer (48), the fourth sealing plate (43) is fixedly arranged on the lower end face of the second ion exchange layer (48), a second central hole (44) aligned with the second through hole (41) is formed in the center of the fourth sealing plate (43),
the radioactive pond water flowing out of the first purifying basket (3) flows down along the gap between the third sealing plate (42) and the inner wall of the second cylinder (2), then passes through the second ion exchange layer (48), enters the second channel, and then flows out along the second channel and the second central hole (44).
2. The ion purifier according to claim 1, characterized in that the outer diameter of the first ion exchange layer (36) is the same as the outer diameter of the first sealing plate (33) and the second sealing plate (34) and smaller than the inner diameter of the second cylinder (2),
the outer diameter of the second ion exchange layer (48) is the same as the outer diameter of the third sealing plate (42) and the fourth sealing plate (43) and is smaller than the inner diameter of the second cylinder (2).
3. The ion purifier as claimed in claim 2, further comprising a support assembly comprising an orifice plate (5) and a ring plate (51),
the orifice plate (5) is embedded at the bottom end of the second cylinder body (2), a third central hole (45) is arranged in the center of the orifice plate (5), the third central hole (45) is aligned with the second central hole (44), the second purifying hanging basket (4) is supported on the orifice plate (5),
the annular plate (51) is embedded on the inner wall of the second cylinder body (2) and is positioned above the pore plate (5), a through hole is formed in the center of the annular plate (51), the inner diameter of the through hole of the annular plate (51) is larger than the outer diameters of the first purifying hanging basket (3) and the second purifying hanging basket (4),
the bottom periphery of the second sealing plate (34) is provided with a plurality of supporting blocks (35) which are uniformly distributed along the circumferential direction of the second sealing plate, the diameter of a circular ring where the outer edges of the supporting blocks (35) are located is larger than the inner diameter of the annular plate (51), and the supporting blocks are used for supporting the first purifying hanging basket (3) on the annular plate (51).
4. The ion purifier of claim 3, wherein the support assembly further comprises a guide plate (52),
the guide plates (52) are provided with a plurality of guide plates, the guide plates are uniformly distributed on the inner wall of the second cylinder body (2) at intervals, and the diameter of a circular ring formed at the inner ends of the guide plates (52) is slightly larger than the outer diameters of the first purifying hanging basket (3) and the second purifying hanging basket (4).
5. The ion purifier of claim 4, further comprising a handling assembly comprising a first handling interface (82) and a second handling interface (83),
the first lifting joint (82) is in a ring shape, is arranged on the first sealing plate (33) and is fixedly connected to the inner wall of the first central hole (32),
the upper end of the second purification hanging basket (4) is of a concave structure with a concave center, correspondingly, the third sealing plate (42) is of a concave structure with a concave center, and the second lifting interface (83) is of a ring shape and fixedly connected to the inner wall of the concave structure of the third sealing plate (42).
6. The ion purifier as claimed in claim 5, characterized in that the second purification basket (4) further comprises a compression spring (47),
the compression spring (47) is fixedly arranged on the upper end face of the third sealing plate (42), and is in extrusion contact with the second sealing plate (34) so as to compress the second purification hanging basket (4).
7. The ion purifier of claim 6, further comprising a seal assembly comprising a first seal ring (103) and a second seal ring (104),
a first annular groove is formed in the top end of the inner ring of the first sealing plate (33), the first annular groove is positioned at the outer side of the first through hole (31), the first sealing ring (103) is fixedly arranged in the first annular groove,
an end plate (11) is arranged at the lower end of the first cylinder body (1), a fourth central hole (46) is formed in the end plate (11), the fourth central hole (46) is aligned with the first through hole (31), the first sealing ring (103) is tightly pressed under the action of the end plate (11) so that radioactive pond water can only enter the first through hole (31) through the fourth central hole (46),
the second annular groove is formed in the bottom end of the inner ring of the fourth sealing plate (43), the second annular groove is located on the outer side of the second central hole (44), the second sealing ring (104) is fixedly installed in the second annular groove, and the second sealing ring (104) and the pore plate (5) are mutually pressed, so that the radioactive pond water can only pass through the second central hole (44) and the third central hole (45) to be discharged.
8. The ion purifier as claimed in claim 7, further comprising a measuring unit comprising a dose meter (10), a holder (9), a monitor,
the plurality of brackets (9) are arranged, the plurality of brackets (9) are uniformly arranged on the outer wall of the second cylinder body (2) at intervals, the dose measuring instrument (10) is arranged on the brackets (9) and can stretch and slide along the axial direction of the brackets, and is used for measuring the radioactive dose rate of the radioactive pond water in the storage pond (102),
the monitor is electrically connected to the dose meter (10) for receiving a radioactive dose rate measured by the dose meter (10).
9. The ion purifier as claimed in any one of claims 3-8, further comprising a drain base (6) and a support frame (7),
the drainage base (6) is fixedly connected with the pore plate (5) at the bottom of the second cylinder body (2), the input port of the drainage base is communicated with the third central hole (45), a plurality of drainage ports (61) are uniformly arranged on the drainage base (6) along the circumferential direction of the drainage base,
the purified radioactive pond water enters the drainage base (6) through the input port of the drainage base (6) and returns to the storage pond (102) along the drainage port (61) thereof,
the support frame (7) is fixedly arranged on the wall of the storage water tank (102) and is used for supporting the drainage base (6) and the cylinder body.
10. A lifting tool for lifting an ion purifier as claimed in any one of claims 5 to 8, wherein the lifting tool (8) comprises a lifting shaft (85), a guide ring (86), lifting lugs (84) and lifting hooks (81),
the hanging shaft (85) is of a columnar structure, the diameter of the hanging shaft is smaller than the inner diameter of the first central hole (32) and the diameter of the concave structure of the third sealing plate (42),
the lifting hook (81) is arranged at the bottom end of the lifting shaft (85) and is used for being connected with the first lifting interface (82) or the second lifting interface (83) so as to lift the first purifying hanging basket (3) or the second purifying hanging basket (4),
the guide ring (86) is fixedly arranged on the hanging shaft (85), the circular ring surface of the guide ring is perpendicular to the hanging shaft (85), the diameter of the guide ring (86) is smaller than the inner diameters of the first cylinder body (1) and the second cylinder body (2),
the lifting lug (84) is arranged at the top end of the lifting shaft (85).
11. A spent fuel storage system comprising a storage pool (102) and an ion purifier as claimed in any one of claims 1 to 9,
the storage pool (102) is used for storing spent fuel, the pool contains radioactive pool water,
the ion purifier is fixedly connected to the wall of the water storage tank (102).
12. A method for purifying water in a radioactive pond, comprising the steps of:
the ion purifier as claimed in any one of claims 1 to 11 is installed in a storage tank (102), wherein the water inlet (12) of the ion purifier is located below the liquid level in the storage tank (102),
the radioactive pond water in the storage pond (102) enters the interior of the ion purifier to finish purification,
purified radioactive pond water is discharged from an outlet of the ion purifier into the storage pond (102).
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| CN202111111475.4A CN113838590B (en) | 2021-09-18 | 2021-09-18 | Ion purifier, lifting tool, spent fuel storage system and purification method |
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| CN202111111475.4A CN113838590B (en) | 2021-09-18 | 2021-09-18 | Ion purifier, lifting tool, spent fuel storage system and purification method |
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| CN114751548B (en) * | 2022-04-12 | 2023-08-25 | 中国核电工程有限公司 | Spent fuel storage pool system and installation/replacement method of filter element thereof |
| CN115448418B (en) * | 2022-09-13 | 2023-08-29 | 上海阿波罗机械股份有限公司 | Ion exchanger and installation device thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090083822A (en) * | 2008-01-30 | 2009-08-04 | 주식회사 지오웍스 | Apparatus for removing anionic pollutants and particulates in water purifying treatment |
| CN201383354Y (en) * | 2009-01-22 | 2010-01-13 | 中广核工程有限公司 | Improved nuclear power station spent fuel reservoir cooling and purifying system |
| CN104108768A (en) * | 2014-08-04 | 2014-10-22 | 中国原子能科学研究院 | Radioactive shield mixed ion exchanger |
| CN207217127U (en) * | 2017-09-11 | 2018-04-10 | 岭东核电有限公司 | A kind of spent nuclear fuel in nuclear power plant water quality of pond cleaning system |
| CN212127618U (en) * | 2020-03-16 | 2020-12-11 | 佛山市云米电器科技有限公司 | Cylindrical filtering device and water purifier |
| CN112222122A (en) * | 2020-10-21 | 2021-01-15 | 江苏核电有限公司 | Device suitable for spent fuel dry method storage container surface washes |
| CN213231613U (en) * | 2020-08-18 | 2021-05-18 | 中国核电工程有限公司 | In-pool ion exchange device of spent fuel pool |
-
2021
- 2021-09-18 CN CN202111111475.4A patent/CN113838590B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090083822A (en) * | 2008-01-30 | 2009-08-04 | 주식회사 지오웍스 | Apparatus for removing anionic pollutants and particulates in water purifying treatment |
| CN201383354Y (en) * | 2009-01-22 | 2010-01-13 | 中广核工程有限公司 | Improved nuclear power station spent fuel reservoir cooling and purifying system |
| CN104108768A (en) * | 2014-08-04 | 2014-10-22 | 中国原子能科学研究院 | Radioactive shield mixed ion exchanger |
| CN207217127U (en) * | 2017-09-11 | 2018-04-10 | 岭东核电有限公司 | A kind of spent nuclear fuel in nuclear power plant water quality of pond cleaning system |
| CN212127618U (en) * | 2020-03-16 | 2020-12-11 | 佛山市云米电器科技有限公司 | Cylindrical filtering device and water purifier |
| CN213231613U (en) * | 2020-08-18 | 2021-05-18 | 中国核电工程有限公司 | In-pool ion exchange device of spent fuel pool |
| CN112222122A (en) * | 2020-10-21 | 2021-01-15 | 江苏核电有限公司 | Device suitable for spent fuel dry method storage container surface washes |
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