CN205302966U - Radioactive liquid waste treatment system of nuclear power plant with urgent prediction scheme measure - Google Patents
Radioactive liquid waste treatment system of nuclear power plant with urgent prediction scheme measure Download PDFInfo
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- CN205302966U CN205302966U CN201521097147.3U CN201521097147U CN205302966U CN 205302966 U CN205302966 U CN 205302966U CN 201521097147 U CN201521097147 U CN 201521097147U CN 205302966 U CN205302966 U CN 205302966U
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Abstract
The utility model discloses a radioactive liquid waste treatment system of nuclear power plant with urgent prediction scheme measure, including five ion exchange beds. Wherein can load different media according to the quality of water condition of waste water at normal every lower ion exchange bed of operating mode to can be through establishing ties or the parallelly connected nimble radioactive wastewater of handling of mode. Under accident operating modes such as appearance nuclear waste water leakage, every ion exchange bed is in parallelly connected mode, and the waste water after the processing is in urgent delivery port inflow container. This control system can handle different radioactive wastewaters under normal operating mode, can handle quintuplicate waste water under the accident operating mode again, has improved the treatment effeciency of radioactive wastewater under the accident situation greatly, increases new weight to the urgent prediction scheme measure of nuclear waste water leakage for the nuclear power plant.
Description
Technical field
This utility model relates to nuclear industry Spent Radioactive water treatment field, specifically a kind of nuclear power plant's Spent Radioactive water treatment system with urgent prediction scheme measure.
Background technology
On March 11st, 2011, Fukushima, Japan nuclear power station is blasted, and produces substantial amounts of radioactive wastewater, and nuclear waste water leakage accident not only results in huge economic loss, cause society's unease, more ecological environment can be produced pollution serious, that cannot reverse and destruction. At present, the discharge of nuclear power station radioactive liquid waste be it is also proposed increasingly stricter emission request by country, to occurring that under accident conditions, urgent prediction scheme measure is increasingly paid attention to.
At present, the technique processing radioactive waste liquid both at home and abroad is roughly divided into two classes, and namely conventional processes and innovation process technique: traditional handicraft comprises evaporation, filtration, ion exchange etc.; Innovation processes technique chemical flocculation process, membrane separation technique etc. Ion exchange can adopt different processes for waste water complexity water quality, and each ion exchanger can switch flexibly, processes in technique in radioactivity and is widely used.
Under usual condition, ion exchange bed technique adopts tandem process, and this kind of technique can radioactive wastewater under sweetly disposition nominal situation. But when accident condition occurs, substantial amounts of radioactive wastewater leaks, the process technique of a set of series connection can not meet the treating capacity under accident condition completely, if ion exchange bed can be made into the state of parallel running, so both can not affect the process technique of nominal situation waste water, and the accident waste water of several times can be processed, substantially increasing the treatment effeciency of radioactive wastewater under accident situation when increasing limited cost, the urgent prediction scheme measure leaked for nuclear waste water for nuclear power plant increases new counterweight.
Summary of the invention
This utility model provides a kind of nuclear power plant's Spent Radioactive water treatment system with urgent prediction scheme measure, by the switching to valve and filled media, can meet simultaneously process with the radioactive wastewater under accident situation under nominal situation, substantially increasing the treatment effeciency of radioactive wastewater under accident situation, the urgent prediction scheme leaked for nuclear waste water for nuclear power plant provides new thinking.
The technical solution of the utility model is: a kind of nuclear power plant's Spent Radioactive water treatment system with urgent prediction scheme measure, including the ion exchange bed of several series connection, i.e. and the first ion exchange bed, the second ion exchange bed is to N ion exchange bed; The water inlet conduit of described first ion exchange bed is connected to radioactive wastewater water inlet, and the outlet pipeline of N ion exchange bed is connected to radioactive wastewater outlet; The water inlet of each ion exchange bed arranges the first water inlet switch valve, pipeline between outlet and the water inlet switch valve of next ion exchange bed of each ion exchange bed is provided with the first outlet switch valve, the outlet pipeline of N ion exchange bed is provided with the second outlet switch valve; Described radioactive wastewater water inlet is connected to the water inlet of the second outlet switch valve by the first pipeline, described first pipeline is provided with N number of node, each node is connected to the water inlet of the water inlet switch valve of an ion exchange bed, and between each two node, it is provided with the second water inlet switch valve, it is provided with a 3rd water inlet switch valve between the water inlet of last node and the second outlet switch valve; The outlet of each ion exchange bed is connected to the urgent sewage draining exit of radioactive wastewater respectively through a 3rd outlet switch valve pipeline;
By driving the first water inlet switch valve, the second water inlet switch valve and the 3rd outlet switch valve, close the first outlet switch valve, the 3rd water inlet switch valve and the second outlet switch valve, every ion exchange bed is made to be in the mode of parallel connection, processing the operating mode when occurring that nuclear waste water leak, the waste water after process is in urgent outlet inflow container.
Further, described ion exchange bed is internal fills cationic resin, resin anion (R.A.) or hybrid ionic resin.
Further, described N is 5, first ion exchange bed fills cationic resin, and the second ion exchange bed fills resin anion (R.A.), the 3rd ion exchange bed fills resin anion (R.A.), the 4th ion exchange bed fills hybrid ionic resin, the 5th ion exchange bed fills hybrid ionic resin.
Every ion exchange bed can load different media according to the water quality situation of waste water in normal conditions, and can pass through connects (drives the first water inlet switch valve, the first outlet switch valve and the second outlet switch valve, close the second water inlet switch valve, the 3rd water inlet switch valve and the 3rd outlet switch valve) or the mode sweetly disposition radioactive wastewater of in parallel (driving the first water inlet switch valve, the first outlet switch valve, the second water inlet switch valve and the second outlet switch valve, close the 3rd water inlet switch valve and the 3rd outlet switch valve).
Under the accident conditionses such as nuclear waste water leakage occur, every ion exchange bed can load rapidly Special Medium for the water quality condition of accident waste water, carry out valve transfer simultaneously and (drive the first water inlet switch valve, the second water inlet switch valve and the 3rd outlet switch valve, close the first outlet switch valve, the 3rd water inlet switch valve and the second outlet switch valve), every ion exchange bed is in the mode of parallel connection, and the waste water after process flows in container through urgent outlet.
If the water quality situation of waste water is better, then directly opens the second water inlet switch valve and the 3rd water inlet switch valve, do not need process to be expelled directly out. Convenient and swift.
The beneficial effects of the utility model are: ion exchange bed makes into the state of parallel running, so both can not affect the process technique of nominal situation waste water, and the accident waste water of several times can be processed, substantially increasing the treatment effeciency of radioactive wastewater under accident situation when increasing limited cost, the urgent prediction scheme measure leaked for nuclear waste water for nuclear power plant increases new counterweight.
This cover system can use flexibly, is not limited only to five, when conditions permit, can be provided with abundant ion exchange bed, improve npp safety protection.Other system can also be transformed, only need to increase by a roadside road at the outlet of ion exchange bed, it is possible to realize this function.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the nuclear power plant's Spent Radioactive water treatment system with urgent prediction scheme measure.
In figure: 1 first ion exchange bed, 2 second ion exchange beds, 3 the 3rd ion exchange beds, 4 the 4th ion exchange beds, 5 the 5th ion exchange beds.
Detailed description of the invention
Below in conjunction with accompanying drawing and certain inland nuclear power plant example, this utility model is described in further detail.
Fig. 1 is the schematic diagram of the nuclear power plant's Spent Radioactive water treatment system with urgent prediction scheme measure, including five ion exchange beds. Namely the first ion exchange bed, the second ion exchange bed, the 3rd ion exchange bed, the 4th ion exchange bed, the 5th ion exchange bed. The water inlet conduit of described first ion exchange bed is connected to radioactive wastewater water inlet, and the outlet pipeline of the 5th ion exchange bed is connected to radioactive wastewater outlet; The water inlet of each ion exchange bed arranges the first water inlet switch valve, pipeline between outlet and the water inlet switch valve of next ion exchange bed of each ion exchange bed is provided with the first outlet switch valve, the outlet pipeline of the 5th ion exchange bed is provided with the second outlet switch valve; Described radioactive wastewater water inlet is connected to the water inlet of the second outlet switch valve by the first pipeline, described first pipeline is provided with five nodes, each node is connected to the water inlet of the water inlet switch valve of an ion exchange bed, and between each two node, it is provided with the second water inlet switch valve, it is provided with a 3rd water inlet switch valve between the water inlet of last node and the second outlet switch valve; The outlet of each ion exchange bed is connected to the urgent sewage draining exit of radioactive wastewater respectively through a 3rd outlet switch valve pipeline.
First ion exchange bed 1 fills cationic resin in normal conditions, second ion exchange bed 2 fills resin anion (R.A.), the 3rd ion exchange bed 3 fills resin anion (R.A.), the 4th ion exchange bed 4 fills hybrid ionic resin, the 5th ion exchange bed 5 fills hybrid ionic resin, (the first water inlet switch valve, the first outlet switch valve and the second outlet switch valve is driven by connecting, close the second water inlet switch valve, the 3rd water inlet switch valve and the 3rd outlet switch valve) mode process radioactive wastewater, final wastewater treatment up to standard after discharge.
Under the accident conditionses such as nuclear waste water leakage occur, if there is substantial amounts of radioactive cation in the radioactive wastewater of leakage, then every ion exchange bed can load the cationic resin processing this cationoid best results, carry out valve transfer simultaneously and (drive the first water inlet switch valve, second water inlet switch valve and the 3rd outlet switch valve, close the first outlet switch valve, 3rd water inlet switch valve and the second outlet switch valve), every ion exchange bed is in the state of parallel connection, such waste water is processed rapidly, can effectively slow down the harm of radioactive wastewater, reach the effect of emergency protection.
Although this utility model is disclosed above with preferred embodiment, so it is not limited to this utility model. This utility model art tool usually intellectual, without departing from spirit and scope of the present utility model, when various modifications may be made and retouching. Therefore, protection domain of the present utility model, when being as the criterion depending on those as defined in claim.
Claims (3)
1. the nuclear power plant's Spent Radioactive water treatment system with urgent prediction scheme measure, it is characterised in that include the ion exchange bed of several series connection, i.e. the first ion exchange bed, the second ion exchange bed is to N ion exchange bed; The water inlet conduit of described first ion exchange bed is connected to radioactive wastewater water inlet, and the outlet pipeline of N ion exchange bed is connected to radioactive wastewater outlet; The water inlet of each ion exchange bed arranges the first water inlet switch valve, pipeline between outlet and the water inlet switch valve of next ion exchange bed of each ion exchange bed is provided with the first outlet switch valve, the outlet pipeline of N ion exchange bed is provided with the second outlet switch valve; Described radioactive wastewater water inlet is connected to the water inlet of the second outlet switch valve by the first pipeline, described first pipeline is provided with N number of node, each node is connected to the water inlet of the water inlet switch valve of an ion exchange bed, and between each two node, it is provided with the second water inlet switch valve, it is provided with a 3rd water inlet switch valve between the water inlet of last node and the second outlet switch valve; The outlet of each ion exchange bed is connected to the urgent sewage draining exit of radioactive wastewater respectively through a 3rd outlet switch valve pipeline;
By driving the first water inlet switch valve, the second water inlet switch valve and the 3rd outlet switch valve, close the first outlet switch valve, the 3rd water inlet switch valve and the second outlet switch valve, every ion exchange bed is made to be in the mode of parallel connection, processing the operating mode when occurring that nuclear waste water leak, the waste water after process is in urgent outlet inflow container.
2. a kind of nuclear power plant's Spent Radioactive water treatment system with urgent prediction scheme measure according to claim 1, it is characterised in that described ion exchange bed is internal fills cationic resin, resin anion (R.A.) or hybrid ionic resin.
3. a kind of nuclear power plant's Spent Radioactive water treatment system with urgent prediction scheme measure according to claim 1 and 2, it is characterized in that, described N is 5, first ion exchange bed fills cationic resin, and the second ion exchange bed fills resin anion (R.A.), the 3rd ion exchange bed fills resin anion (R.A.), the 4th ion exchange bed fills hybrid ionic resin, the 5th ion exchange bed fills hybrid ionic resin.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521097147.3U CN205302966U (en) | 2015-12-24 | 2015-12-24 | Radioactive liquid waste treatment system of nuclear power plant with urgent prediction scheme measure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521097147.3U CN205302966U (en) | 2015-12-24 | 2015-12-24 | Radioactive liquid waste treatment system of nuclear power plant with urgent prediction scheme measure |
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| CN205302966U true CN205302966U (en) | 2016-06-08 |
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| CN201521097147.3U Active CN205302966U (en) | 2015-12-24 | 2015-12-24 | Radioactive liquid waste treatment system of nuclear power plant with urgent prediction scheme measure |
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