CN205085062U - Nuclear power station chemical cleaning washer - Google Patents
Nuclear power station chemical cleaning washer Download PDFInfo
- Publication number
- CN205085062U CN205085062U CN201520793113.1U CN201520793113U CN205085062U CN 205085062 U CN205085062 U CN 205085062U CN 201520793113 U CN201520793113 U CN 201520793113U CN 205085062 U CN205085062 U CN 205085062U
- Authority
- CN
- China
- Prior art keywords
- decontamination
- nuclear power
- power station
- module
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 24
- 239000000126 substance Substances 0.000 title claims abstract description 18
- 238000005202 decontamination Methods 0.000 claims abstract description 100
- 230000003588 decontaminative effect Effects 0.000 claims abstract description 96
- 239000007788 liquid Substances 0.000 claims description 17
- 239000002699 waste material Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000003599 detergent Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000009390 chemical decontamination Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to a nuclear power station chemical cleaning washer, it includes: the system of dispensing, the system of dispensing include at least one decontaminating solution bin, with at least one doser that the decontaminating solution bin is connected, install be used for detecting the pH meter of its interior solution pH value on the decontaminating solution bin, surface decontamination subassembly, inside decontamination subassembly, the control modul, control module respectively with the system of dispensing surface decontamination subassembly with inside decontamination subassembly is connected for carry out automated control to it. Through will the system of dispensing respectively with surface decontamination subassembly, inside decontamination subassembly to being connected it with control module, can realizing the chemical cleaning to nuclear power station circulation circuit, this washer not only is suitable for and also is suitable for retired nuclear power station at the labour nuclear power station, not only is applicable to the decontamination of nuclear power station system device internal surface, also is applicable to the decontamination of surface, can be used to different decontamination technologies.
Description
Technical field
The utility model belongs to nuclear industry field, relates to a kind of washer, is specifically related to a kind of nuclear power station Chemical cleaning washer.
Background technology
Nuclear power station runs under high temperature and high pressure environment, the metallic corrosion products of closed circuit moves to reactor core along with cooling agent and activates, and then get back to closed circuit at system unit surface deposition along with cooling agent, be covered with radionuclide at primary heat transport system material surface like this.In order to reduce the exposure dosage of personnel in maintenance process, need to carry out decontamination operation to these parts.
Desirable chemical decontamination Processes and apparatus wishes to reach maximum decontamination factor, minimum secondary refuse, minimum radioactive dose and ambient influnence, also needs consider contaminated for the equipment of decontamination itself and clean simultaneously.In addition for different decontamination object and decontamination object, different decontamination process can be selected, such as, to in-service nuclear power plant decontamination, require that decontamination process and process can not cause harmful effect to the corrosion of system equipment base material, and to retired nuclear power plant decontamination, require that having maximum decontamination factor does not cause secondary pollution.Nuclear power station application chemical decontamination technique more widely mainly contains HP/CORD, AP-CITROX, CAN-DECON/DEREM, LOMI, EMMAC and improves one's methods.The factors such as different decontamination objects, decontamination object, decontamination environment are needed to adopt different decontamination process, therefore, nuclear power station needs modularization, the washer that can assemble according to demand carrys out satisfied different decontamination situation.
Summary of the invention
The utility model object provides a kind of nuclear power station Chemical cleaning washer to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of nuclear power station Chemical cleaning washer, and it comprises:
Dispensing system, described dispensing system comprising at least one decontaminating solution storage bin, at least one doser be connected with described decontaminating solution storage bin, being arranged on described decontaminating solution storage bin for detecting the pH meter of solution ph in it;
Surface decontamination assembly, described surface decontamination assembly comprises the surface decontamination case be connected with described decontaminating solution storage bin, the first pump being arranged on the first self-circulation pipeline on described surface decontamination case and being arranged in described first self-circulation pipeline, is provided with the first valve controlling its break-make between described dispensing system and described surface decontamination assembly;
Inner decontamination module, described inner decontamination module comprise be connected with described decontaminating solution storage bin inside decontamination tank, to be arranged on described inner decontamination tank for the second self-circulation pipeline of external closed circuit and the second pump of being arranged in described second self-circulation pipeline, be provided with the second valve controlling its break-make between described dispensing system and described inner decontamination module;
Control module, described control module is connected with described inner decontamination module with described dispensing system, described surface decontamination assembly respectively, for carrying out Automated condtrol to it.
Optimally, the heating module for heating the solution wherein filled and the stirring module for carrying out mix and blend to the solution wherein filled are installed in described decontaminating solution storage bin.
Optimally, described control module is connected with described doser, described pH meter, described heating module and described stirring module respectively.
Optimally, it also comprises the waste liquid assembly be connected with described second self-circulation pipeline with described first self-circulation pipeline.
Further, between described waste liquid assembly and described surface decontamination assembly, be provided with the 3rd valve controlling its break-make, between described waste liquid assembly and described inner decontamination module, be provided with the 4th valve controlling its break-make.
Because technique scheme is used, the utility model compared with prior art has following advantages: the utility model nuclear power station Chemical cleaning washer, by by dispensing system respectively with surface decontamination assembly, inner decontamination module, and it is connected with control module, the Chemical cleaning to nuclear power station closed circuit can be realized, this washer is not only suitable for in-service nuclear power station and is also suitable for retired nuclear power station, be not only applicable to the decontamination of nuclear power plant system equipment inner surface, also the decontamination of outer surface is applicable to, can be used for different decontamination process, each system can need to carry out modular combination according to scene, its adaptability is stronger, and decrease and again pollute.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model nuclear power station Chemical cleaning washer;
Wherein, 1, dispensing system; 11, doser; 12, pH meter; 13, decontaminating solution storage bin; 131, heating module; 132, module is stirred; 2, surface decontamination assembly; 21, surface decontamination case; 22, the first self-circulation pipeline; 23, the first pump; 3, inner decontamination module; 31, inner decontamination tank; 32, the second self-circulation pipeline; 33, the second pump; 4, control module; 5, waste liquid assembly; 6, the first valve; 7, the second valve; 8, the 3rd valve; 9, the 4th valve.
Detailed description of the invention
Below in conjunction with embodiment shown in the drawings, the utility model is further described.
Nuclear power station Chemical cleaning washer as shown in Figure 1, mainly comprises dispensing system 1, surface decontamination assembly 2, inner decontamination module 3 and control module 4; Surface decontamination assembly 2 is all connected with dispensing system 1 with inner decontamination module 3, for accepting the cleaning solution of configuration in dispensing system 1; Control module 4 is connected with inner decontamination module 3 with dispensing system 1, surface decontamination assembly 2, for carrying out Automated condtrol to them.
Wherein, dispensing system 1 comprises doser 11, pH meter 12 and decontaminating solution storage bin 13, and doser 11 has one at least, and it is connected with decontaminating solution storage bin 13, for being added by various chemical agent in corresponding decontaminating solution storage bin 13, mixes; PH meter 12 is arranged on decontaminating solution storage bin 13, for detecting the pH value of solution in it.Surface decontamination assembly 2 comprises the surface decontamination case 21 be connected with decontaminating solution storage bin 13, the first pump 23 being removably mounted on the first self-circulation pipeline 22 on surface decontamination case 21 and being arranged in the first self-circulation pipeline 22, in use the parts of nuclear power station are dipped in surface decontamination case 21, starting the first pump 23 makes the cleaning solution in surface decontamination case 21 enter surface decontamination case 21 again after the first self-circulation pipeline 22, realize the shuttling movement of cleaning solution, thus nuclear power plant components outer surface is rinsed.Be provided with the first valve 6 between dispensing system 1 and surface decontamination assembly 2, the solution in decontaminating solution storage bin 13 all enters after in surface decontamination assembly 2, closes the first valve 6, restarts the first pump 23 after cutting off dispensing system 1 and surface decontamination assembly 2.
Inner decontamination module 3 comprises the inside decontamination tank 31 be connected with decontaminating solution storage bin 13, the second pump 33 being removably mounted on the second self-circulation pipeline 32 on inner decontamination tank 31 and being arranged in the second self-circulation pipeline 32, second self-circulation pipeline 32 is for connecting with nuclear power station closed circuit, starting the second pump 33 makes cleaning solution in inner decontamination tank 31 through the second self-circulation pipeline 32, closed circuit, inner decontamination tank 31 is entered again after second self-circulation pipeline 32, realize the shuttling movement of cleaning solution, thus nuclear power station closed circuit inner surface is rinsed.Be provided with the second valve 7 between dispensing system 1 and inner decontamination module 3, the solution in decontaminating solution storage bin 13 all enters after in inner decontamination module 3, closes the second valve 7, restarts the second pump 33 after cutting off dispensing system 1 and inner decontamination module 3.
In the present embodiment, the heating module 131 for heating the solution wherein filled and the stirring module 132 for carrying out mix and blend to the solution wherein filled are installed in decontaminating solution storage bin 13.Control module 4 respectively with doser 11, pH meter 12, heating module 131 and stir module 132 and be connected, thus can carry out Automated condtrol to them.Nuclear power station Chemical cleaning washer also comprises the waste liquid assembly 5 be connected with the second self-circulation pipeline 32 with the first self-circulation pipeline 22, for collecting waste liquid.Be provided with the 3rd valve 8 controlling its break-make between waste liquid assembly 5 and surface decontamination assembly 2, between waste liquid assembly 5 and inner decontamination module 3, be provided with the 4th valve 9 controlling its break-make.The pipeline be communicated with between decontaminating solution storage bin 13 and surface decontamination assembly 2 and between decontaminating solution storage bin 13 and inner decontamination module 3 is provided with pump, for being imported respectively in surface decontamination assembly 2, inner decontamination module 3 by the cleaning solution of configuration in decontaminating solution storage bin 13.
Above the structure of the utility model nuclear power station Chemical cleaning washer is illustrated, below its operation principle is further explained:
The detergent acid potassium permanganate oxidation detergent needed for surface decontamination is prepared in decontaminating solution storage bin 13, carry out utilizing pH meter 12 to carry out pH detection after stirring module 132 stirring, then under the effect of heating module 131, be warmed to the temperature (setting as required, such as 50 ~ 80 DEG C) of setting; Then open the first valve 6, by pump, acid potassium permanganate detergent (i.e. oxidisability detergent) is all imported in surface decontamination assembly 2, close the first valve 6; Start the first pump 23, make oxidation decontamination liquid in surface decontamination case 21 through first self-circulation pipeline 22 self-loopa 3 ~ 20h, be then oxidized decontamination liquid and drain in waste liquid assembly 5.By control module 4, during the self-loopa of above-mentioned oxidation decontamination liquid, reproducibility detergent is prepared (containing oxalic acid, nitric acid etc. in decontaminating solution storage bin 13, or add certain chelating agent etc., concrete oxidisability detergent and reproducibility detergent all can configure according to actual needs), after stirring, pH detects; Then be warmed to the temperature of setting, after the oxidisability detergent when is above discharged, opens the first valve 6, reduction detergent is all imported in surface decontamination assembly 2, close the first valve 6; Start the first pump 23, make reduction decontamination liquid in surface decontamination case 21 through self-loopa 3 ~ 12h, then drain in waste liquid assembly 5, measure γ value.Said process can as required, carry out repeatedly.Finally, in decontaminating solution storage bin 13, configure demineralized water, repeat corresponding operation, repeat 3-5 time.Said process is equally applicable to inner decontamination module 3, can relevant oxidisability detergent, reproducibility detergent slightly different.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (5)
1. a nuclear power station Chemical cleaning washer, is characterized in that, it comprises:
Dispensing system (1), described dispensing system (1) comprising at least one decontaminating solution storage bin (13), at least one doser (11) be connected with described decontaminating solution storage bin (13), being arranged on described decontaminating solution storage bin (13) for detecting the pH meter (12) of solution ph in it;
Surface decontamination assembly (2), described surface decontamination assembly (2) comprises the surface decontamination case (21) be connected with described decontaminating solution storage bin (13), the first pump (23) being arranged on the first self-circulation pipeline (22) on described surface decontamination case (21) and being arranged on described first self-circulation pipeline (22), is provided with the first valve (6) controlling its break-make between described dispensing system (1) and described surface decontamination assembly (2);
Inner decontamination module (3), described inner decontamination module (3) comprise be connected with described decontaminating solution storage bin (13) inside decontamination tank (31), to be arranged on described inner decontamination tank (31) for second self-circulation pipeline (32) of external closed circuit and the second pump (33) of being arranged on described second self-circulation pipeline (32), be provided with the second valve (7) controlling its break-make between described dispensing system (1) and described inner decontamination module (3);
Control module (4), described control module (4) is connected with described inner decontamination module (3), for carrying out Automated condtrol to it with described dispensing system (1), described surface decontamination assembly (2) respectively.
2. nuclear power station Chemical cleaning washer according to claim 1, is characterized in that: be provided with the heating module (131) for heating the solution wherein filled and the stirring module (132) for carrying out mix and blend to the solution wherein filled in described decontaminating solution storage bin (13).
3. nuclear power station Chemical cleaning washer according to claim 2, is characterized in that: described control module (4) is connected with described doser (11), described pH meter (12), described heating module (131) and described stirring module (132) respectively.
4. nuclear power station Chemical cleaning washer according to claim 1, is characterized in that: it also comprises the waste liquid assembly (5) be connected with described second self-circulation pipeline (32) with described first self-circulation pipeline (22).
5. nuclear power station Chemical cleaning washer according to claim 4, it is characterized in that: between described waste liquid assembly (5) and described surface decontamination assembly (2), be provided with the 3rd valve (8) controlling its break-make, between described waste liquid assembly (5) and described inner decontamination module (3), be provided with the 4th valve (9) controlling its break-make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793113.1U CN205085062U (en) | 2015-10-14 | 2015-10-14 | Nuclear power station chemical cleaning washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520793113.1U CN205085062U (en) | 2015-10-14 | 2015-10-14 | Nuclear power station chemical cleaning washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205085062U true CN205085062U (en) | 2016-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520793113.1U Expired - Fee Related CN205085062U (en) | 2015-10-14 | 2015-10-14 | Nuclear power station chemical cleaning washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205085062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149278A (en) * | 2015-10-14 | 2015-12-16 | 大亚湾核电运营管理有限责任公司 | Chemical cleaning decontamination equipment of nuclear power plant |
-
2015
- 2015-10-14 CN CN201520793113.1U patent/CN205085062U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149278A (en) * | 2015-10-14 | 2015-12-16 | 大亚湾核电运营管理有限责任公司 | Chemical cleaning decontamination equipment of nuclear power plant |
| CN105149278B (en) * | 2015-10-14 | 2017-05-24 | 广东核电合营有限公司 | Chemical cleaning decontamination equipment of nuclear power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 |