CN110111918A - A kind of change appearance system purification device of reactor unit - Google Patents
A kind of change appearance system purification device of reactor unit Download PDFInfo
- Publication number
- CN110111918A CN110111918A CN201910434837.XA CN201910434837A CN110111918A CN 110111918 A CN110111918 A CN 110111918A CN 201910434837 A CN201910434837 A CN 201910434837A CN 110111918 A CN110111918 A CN 110111918A
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- Prior art keywords
- resin
- mixed bed
- gel type
- filter
- purification device
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- Pending
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- 238000000746 purification Methods 0.000 title claims abstract description 20
- 239000011347 resin Substances 0.000 claims abstract description 74
- 229920005989 resin Polymers 0.000 claims abstract description 74
- 239000002826 coolant Substances 0.000 claims abstract description 30
- 239000012535 impurity Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005260 corrosion Methods 0.000 claims abstract description 11
- 230000007797 corrosion Effects 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 239000000499 gel Substances 0.000 claims description 25
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 150000002500 ions Chemical class 0.000 claims description 9
- 239000004088 foaming agent Substances 0.000 claims description 7
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims description 6
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 4
- 229940063013 borate ion Drugs 0.000 claims description 4
- 229910001416 lithium ion Inorganic materials 0.000 claims description 4
- 108010010803 Gelatin Proteins 0.000 claims description 3
- PPTSBERGOGHCHC-UHFFFAOYSA-N boron lithium Chemical compound [Li].[B] PPTSBERGOGHCHC-UHFFFAOYSA-N 0.000 claims description 3
- 239000008273 gelatin Substances 0.000 claims description 3
- 229920000159 gelatin Polymers 0.000 claims description 3
- 235000019322 gelatine Nutrition 0.000 claims description 3
- 235000011852 gelatine desserts Nutrition 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
-
- 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
-
- 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
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
System purification device, including mixed bed fore filter, mixed bed and resin catcher/filter are held in the change that the present invention provides a kind of reactor unit, and the filter layer set in the mixed bed is formed by gel type resin and macroreticular resin；Wherein, macroreticular resin is covered in the top of gel type resin and close to the water inlet setting of mixed bed connection mixed bed fore filter, and the admission space ratio of itself and gel type resin is 1:4, to realize to particle diameter distribution in coolant between 0.001 μm~0.1 μm and effective filtering of the colloidal impurity with charge, it is ensured that the corrosion product of coolant intermediate ion state, which can enter in gel type resin, to be replaced.Implement the present invention, be able to achieve to particle diameter distribution in coolant between 0.001 μm~0.1 μm and effective filtering of the colloidal impurity with charge, improves water outlet quality, improve the service life of mixed bed.
Description
Technical field
The present invention relates to the adjusting of nuclear reaction type heap primary Ioops water chemistry and Water-quality control technical field, more particularly to one kind are anti-
The change of heap unit is answered to hold system purification device.
Background technique
Reactor unit, to remove the suspended impurity in coolant, maintains primary Ioops when opening heap, normal operation and shutdown
The chemistry and radioactive indicator of coolant within the limits prescribed, can be by the corrosion controls of all components of primary Ioops in minimum
Degree, it is therefore desirable to lasting purification be kept to primary Ioops coolant, being finally reached enables unit while safe and stable operation
Enough reduce the purpose of radioactive solid waste discharge.
Primary Ioops coolant is purified currently, reactor unit useization holds system purification device.As shown in Figure 1,
It includes mixed bed fore filter 1 that system purification device is held in the change/, mixed bed 2/And resin catcher/filter 3/；Wherein, before mixed bed
Set filter 1/For filtering the suspended solid in coolant；Mixed bed 2/It is middle that filter layer is formed using gel type resin, for purifying
Impurity in ionized state in coolant, so that the corrosion product of coolant intermediate ion state passes through mixed bed 2/Shi Huiyu resin is replaced
It reacts and is removed；Resin catcher/filter 3/It is located at mixed bed 2/Water outlet, function are to prevent mixed bed 2/In broken resin
Grain, which enters in coolant, to be polluted.
In view of mixed bed fore filter 1/Aperture design is usually 0.45 μm, and the coolant in actual moving process contains
There is more particle diameter distribution between 0.001 μm~0.1 μm and the colloidal impurity with charge is but difficult to effectively remove, even if mixed bed
Fore filter 1/Aperture be changed to 0.1 μm and not can be removed still but so that this part colloidal impurity is trapped in mixed bed 2/Middle blocking
Mixed bed 2/Runner, substantially reduce mixed bed 2/Service life in addition part colloidal impurity and the corrosion product of ionic state because mixed
Bed 2/The blocking of runner can also flow out mixed bed 2 with coolant/Although will be through resin catcher/filter 3/Secondary filter but because of resin
Catcher/filter 3/Aperture design is 5 μm or can not be intercepted completely, is then re-entered into the coolant of primary Ioops
It pollutes.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that system net makeup is held in the change for providing a kind of reactor unit
It sets, is able to achieve to particle diameter distribution in coolant between 0.001 μm~0.1 μm and effective mistake of the colloidal impurity with charge
Filter, improves water outlet quality, improves the service life of mixed bed.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of changes of reactor unit to hold system net makeup
It sets, including mixed bed fore filter, mixed bed and resin catcher/filter, the filter layer set in the mixed bed is by gel type resin
It is formed with macroreticular resin；Wherein,
The macroreticular resin is covered in the top of the gel type resin and the close mixed bed connection mixed bed is preposition
The water inlet of filter is arranged, and the admission space ratio of itself and the gel type resin is 1:4, to realize in coolant
Particle diameter distribution between 0.001 μm~0.1 μm and with charge colloidal impurity effective filtering, it is ensured that coolant intermediate ion state
Corrosion product can enter and be replaced in the gel type resin.
Wherein, the macroreticular resin is using styrene and divinylbenzene as raw material, in 0.5% gelatin solution, is added one
The pore-foaming agent of certainty ratio is polymerized.
Wherein, the pore-foaming agent includes toluene and dimethylbenzene.
Wherein, the gel type resin is the resin of boron lithium saturation, and the active exchange groups carried are respectively borate
Ion and lithium ion.
Wherein, further includes: spent resin processing unit, the spent resin processing unit are connected with the mixed bed and close to institutes
The water outlet setting that mixed bed is connected to the resin catcher/filter is stated, and is located at the lower section of the filter layer set in the mixed bed.
The implementation of the embodiments of the present invention has the following beneficial effects:
Hold system purification device relative to traditional change, system purification device is held in the change in the embodiment of the present invention, by
The filter layer top formed by gel type resin set in the traditional mixed bed for holding system purification device covers one layer of macropore tree
Rouge, and the admission space of the macroreticular resin and gel type resin ratio is 1:4, it will be able to it adsorbs particle diameter distribution in coolant and exists
Between 0.001 μm~0.1 μm and the colloidal impurity with charge improves making for mixed bed so that it is guaranteed that mixed bed is not plugged up
It with the service life, while can guarantee that the corrosion product of coolant intermediate ion state is replaced out in mixed bed, improve the quality of water outlet.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without any creative labor, according to
These attached drawings obtain other attached drawings and still fall within scope of the invention.
Fig. 1 is that the planar structure connection schematic diagram of system purification device is held in the change of reactor unit in the prior art；
Fig. 2 is that the planar structure connection signal of system purification device is held in the change of reactor unit provided in an embodiment of the present invention
Figure；
Fig. 3 is the enlarged diagram of mixed bed in Fig. 2；
Fig. 4 is the microscopic appearance figure of macroreticular resin in Fig. 3.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
The direction and position term that the present invention is previously mentioned, for example, "upper", "lower", "front", "rear", "left", "right", "inner", "
Outside ", " top ", " bottom ", " side " etc. are only direction or position with reference to attached drawing.Therefore, the direction used and position term
It is rather than the limiting the scope of the invention to illustrate and understand the present invention.
As shown in Figures 2 and 3, in the embodiment of the present invention, system net makeup is held in a kind of change of the reactor unit provided
Set, including mixed bed fore filter 1, mixed bed 2 and resin catcher/filter 3, the mixed bed) in the filter layer that sets by gel-type tree
Rouge 21 and the formation of macroreticular resin 22；Wherein,
Macroreticular resin 22 be covered in gel type resin 21 top and close to mixed bed 2 be connected to mixed bed fore filter 1 into
A is arranged at the mouth of a river, and the admission space ratio of itself and gel type resin 21 is 1:4, is existed to realize to particle diameter distribution in coolant
Between 0.001 μm~0.1 μm and with charge colloidal impurity effective filtering, it is ensured that the corrosion product of coolant intermediate ion state
It can enter and be replaced in gel type resin 21.
It should be noted that
It is understood that since colloidal impurity of the partial size between 0.001 μm~0.1 μm can be long-term steady in water
Fixed holding suspended state usually has charge, thus the admission space ratio of macroreticular resin 22 and conventional gel type resin 21
For 1:4, the ratio be by nuclear industry field practice have shown that this be it is best, macroreticular resin 22 can be balanced to colloidal impurity
Absorption and removal of the gel type resin 21 to impurity in ionized state.Certainly, inventor is also to other proportional regions (such as 1:2~3.5)
Experiment was done, but ineffective for 1:4, and also reached particle diameter distribution between 0.001 μm~0.1 μm and with charge
Colloidal impurity effective filtering, it is ensured that the corrosion product of coolant intermediate ion state can enter to be replaced in gel type resin 21
Effect.Therefore, the admission space ratio of macroreticular resin 22 and conventional gel type resin 21 is that 1:4 has very effective significant effect
Fruit.
In embodiments of the present invention, gel type resin 21 is the resin of boron lithium saturation, the active exchange groups carried point
Not Wei borate ion and lithium ion, therefore the corrosion product of coolant intermediate ion state pass through gel type resin 21 when can set
It changes reaction and is removed, displace the borate ion and lithium ion originally contained in coolant.
In embodiments of the present invention, macroreticular resin 22 is using styrene and divinylbenzene as raw material, in 0.5% gelatin solution
In, a certain proportion of pore-foaming agent is added and is polymerized；Wherein, the pore-foaming agent includes toluene and dimethylbenzene.It is handed over conventional ion
Change resin difference, the physical structure of macroreticular resin 22 is mainly pore structure, as shown in figure 3, it be synthesis when be added it is inert
Pore-foaming agent is removed after network skeleton solidification and link structure unit are formed, then with solvent extraction or washing distillation, is just stayed
The hole not influenced by external condition is descended.The primary attachment mechanism of this macroreticular resin 22 is physical absorption, is based on resin
The atom field of force on surface is unsaturated and has surface energy, thus may adsorb certain molecules to drop low-surface-energy, therefore adsorbable
Electrically charged colloidal substance in coolant.Meanwhile macroreticular resin 22 can also play the role of water distributor, make coolant in gel
It is more evenly distributed in type resin 21, promotes the operating capacity of mixed bed 2.
In embodiments of the present invention, further includes: spent resin processing unit 4, the spent resin processing unit 4 are connected with mixed bed 2
Water outlet B setting logical and that resin catcher/filter 3 is connected to close to mixed bed 2, and be located under the filter layer set in mixed bed 2
Side, to recycle the spent resin to fall off in mixed bed 2.
The implementation of the embodiments of the present invention has the following beneficial effects:
Hold system purification device relative to traditional change, system purification device is held in the change in the embodiment of the present invention, by
The filter layer top formed by gel type resin set in the traditional mixed bed for holding system purification device covers one layer of macropore tree
Rouge, and the admission space of the macroreticular resin and gel type resin ratio is 1:4, it will be able to it adsorbs particle diameter distribution in coolant and exists
Between 0.001 μm~0.1 μm and the colloidal impurity with charge improves making for mixed bed so that it is guaranteed that mixed bed is not plugged up
It with the service life, while can guarantee that the corrosion product of coolant intermediate ion state is replaced out in mixed bed, improve the quality of water outlet.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (5)
1. system purification device, including mixed bed fore filter (1), mixed bed (2) and resin are held in a kind of change of reactor unit
Catcher/filter (3), which is characterized in that the filter layer set in the mixed bed (2) is by gel type resin (21) and macroreticular resin
(22) it is formed；Wherein,
The macroreticular resin (22) is covered in the top of the gel type resin (21) and is connected to close to the mixed bed (2) described mixed
The water inlet setting of bed fore filter (1), and the admission space ratio of itself and the gel type resin (21) is 1:4, to
Realize to particle diameter distribution in coolant between 0.001 μm~0.1 μm and with charge colloidal impurity effective filtering, it is ensured that
The corrosion product of coolant intermediate ion state can enter to be replaced in the gel type resin (21).
2. system purification device is held in the change of reactor unit as described in claim 1, which is characterized in that the macroreticular resin
(22) using styrene and divinylbenzene as raw material, in 0.5% gelatin solution, be added the polymerization of a certain proportion of pore-foaming agent and
At.
3. system purification device is held in the change of reactor unit as claimed in claim 2, which is characterized in that the pore-foaming agent includes
Toluene and dimethylbenzene.
4. system purification device is held in the change of reactor unit as described in claim 1, which is characterized in that the gel type resin
It (21) is the resin of boron lithium saturation, the active exchange groups carried are respectively borate ion and lithium ion.
5. system purification device is held in the change of reactor unit as described in claim 1, which is characterized in that further include: spent resin
Processing unit (4), the spent resin processing unit (4) are connected with the mixed bed (2) and close to described in the mixed bed (2) connections
The water outlet of resin catcher/filter (3) is arranged, and is located at the lower section of the filter layer set in the mixed bed (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434837.XA CN110111918A (en) | 2019-05-23 | 2019-05-23 | A kind of change appearance system purification device of reactor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434837.XA CN110111918A (en) | 2019-05-23 | 2019-05-23 | A kind of change appearance system purification device of reactor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110111918A true CN110111918A (en) | 2019-08-09 |
Family
ID=67491930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910434837.XA Pending CN110111918A (en) | 2019-05-23 | 2019-05-23 | A kind of change appearance system purification device of reactor unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN110111918A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193490A (en) * | 2022-06-30 | 2022-10-18 | 江苏核电有限公司 | VVER unit primary circuit purification system and use method |
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