CN107767982A - A kind of online washer of nuclear power facility primary Ioops radioactive pollution and method - Google Patents
A kind of online washer of nuclear power facility primary Ioops radioactive pollution and method Download PDFInfo
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- CN107767982A CN107767982A CN201711008420.4A CN201711008420A CN107767982A CN 107767982 A CN107767982 A CN 107767982A CN 201711008420 A CN201711008420 A CN 201711008420A CN 107767982 A CN107767982 A CN 107767982A
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- decontamination
- detergent
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- circulation
- agitation tank
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000003904 radioactive pollution Methods 0.000 title claims abstract description 22
- 238000005202 decontamination Methods 0.000 claims abstract description 151
- 230000003588 decontaminative effect Effects 0.000 claims abstract description 138
- 238000013019 agitation Methods 0.000 claims abstract description 62
- 239000003599 detergent Substances 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002351 wastewater Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 239000002826 coolant Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 29
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 230000002285 radioactive effect Effects 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 5
- 239000013589 supplement Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000003002 pH adjusting agent Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000008399 tap water Substances 0.000 claims description 2
- 238000005138 cryopreservation Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 4
- 239000002904 solvent Substances 0.000 abstract description 4
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 231100000331 toxic Toxicity 0.000 abstract description 2
- 230000002588 toxic effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009390 chemical decontamination Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000009392 mechanical decontamination Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 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
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000003466 welding Methods 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
-
- 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
- G21F9/20—Disposal of liquid waste
- G21F9/22—Disposal of liquid waste by storage in a tank or other container
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Environmental & Geological Engineering (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The present invention relates to a kind of online washer of nuclear power facility primary Ioops radioactive pollution and method, belongs to the decontamination field that nuclear industry radwaste minimizes.The equipment is made up of detergent system, circulation decontamination system, circulation line etc., (I) circulation washer is established according to field condition, reasonable Arrangement decontamination Agitation Tank, detergent tank and connection associated cyclic pipeline facilities at the scene, and the pipeline of washer is connected with the primary coolant circuit pipe of nuclear power facility, and carry out installation and debugging；(II) each component and solvent of detergent are added into detergent tank, after stirring fully, circulation decontamination is carried out to the primary Ioops pipeline of nuclear power facility；(III) after circulation decontamination terminates, the solvent in circulation decontamination system is neutralized, circulation decontamination system cleaned with clear water.The present invention has the features such as detersive efficiency is high, saving decontamination cost, and toxic and harmful gas, and easily recovery and the processing of the waste water after decontamination need not be produced in decontamination process.
Description
Technical field
The present invention relates to the decontamination technology field that nuclear industry radwaste minimizes, and in particular to a kind of nuclear power facility one
The online washer of loop radioactive pollution and method.
Background technology
With the high speed development of China's nuclear industry, the nuclear power generating sets of construction are also more and more, due in nuclear-power reactor
In running, reactor in-core will necessarily produce and accumulate radionuclide, and radionuclide is led to by Main Coolant therewith
Cross primary Ioops system and take relevant system to, cause the radioactive pollution of system and equipment.Before reactor dismantling, in order to reduce
The radiation field intensity of Work places, operating personnel's exposure dosage is reduced, reduce waste category, reduced reactor decommissioning process and give up
Thing yield, clean dirt need to be carried out to primary Ioops system.
Foreign countries start from the 1970s for the developmental research of one loop of nuclear power station decontamination technology.At present, widely use
The softening of low concentration of detergent learns decontamination process and instead of initial concentrated solution decontamination process, and decontamination is conceived to decontamination factor
It is high, low to matrix material rate of corrosion, produce secondary amount of waste is few, temperature is low, speed is fast etc..In order to achieve the above object, it is chemical
Decontamination process develops towards redox multistep processes, and the research of domestic this aspect is also in the starting stage.
At present, common decontamination method has mechanical decontamination (including high-speed jet, supercritical ultrasonics technology etc.), chemical decontamination, electrification
The methods of learning decontamination, laser decontamination and melting decontamination, the process that these methods are applied at the scene cuts both ways.
The content of the invention
It is an object of the invention to provide a kind of online washer of nuclear power facility primary Ioops radioactive pollution and method, uses
The apparatus and method carry out decontamination to nuclear power facility primary Ioops, have the features such as detersive efficiency is high, saving decontamination cost, decontamination
Toxic and harmful gas will not be produced in journey, and easily recovery and processing, the apparatus and method have filled up existing to the waste water after decontamination
The blank of the online decontamination technology of nuclear power facility.
To achieve the above object, the technical solution adopted in the present invention is as follows：
A kind of online washer of nuclear power facility primary Ioops radioactive pollution, the equipment include decontamination agent storage device, followed
Ring decontamination system and external system；Wherein：
Decontamination agent storage device：For storing detergent, including detergent tank, support frame and liquid level gauge with a scale；It is described
For detergent tank on support frame, the top of detergent tank is provided with dosing mouth, and liquid level gauge with a scale is set in detergent tank and is stirred
Device is mixed, liquid level gauge with a scale is used for the amount for measuring solution in detergent tank, and agitating device is used to enter material in detergent tank
Row stirring；
Circulate decontamination system：Including dosing pump, decontamination Agitation Tank, electric heater, glass plate liquid level gauge and circulation line；Institute
State decontamination Agitation Tank by pipeline I with the bottom of detergent tank to be connected, pipeline I is provided with dosing pump；Open dosing pump, decontamination
Material in agent tank enters in decontamination Agitation Tank；Electric heater and glass plate liquid level gauge are provided with the decontamination Agitation Tank；Institute
The material stated in decontamination Agitation Tank is circulated by circulation line between decontamination Agitation Tank and external system；
External system：Including reaction vessel A and reaction vessel B.
The top of the decontamination Agitation Tank is provided with exhaust outlet and water supplement port, and the bottom of decontamination Agitation Tank sets sewage draining exit, gone
The side middle and lower part of dirty Agitation Tank sets sample tap and waste water car interface, the opposite side of decontamination Agitation Tank by circulation line with it is outer
System is connected.
The circulation line includes pipeline II and pipeline III, and one end of pipeline II is connected to the bottom of decontamination Agitation Tank, separately
One end is divided into the bottom of two branch roads, two branch road difference coupled reaction device A and reactor B；One end of pipeline III is connected to
The top of dirty Agitation Tank, the other end are divided into the top of two branch roads, two branch road difference coupled reaction device A and reactor B.
The pipeline II is provided with thermometer and circulating pump, and the both sides of circulating pump respectively set a pressure gauge on pipeline II；
Connecting test pipeline section on the pipeline III.
The detergent tank and decontamination Agitation Tank use acid-alkali-corrosive-resisting material.
The online decontamination method of nuclear power facility primary Ioops radioactive pollution carried out using the equipment, is comprised the following steps：
(1) online washer is connected with primary coolant circuit pipe, then adds decontamination into detergent tank from dosing mouth
Each raw material components of agent, open agitating device and stir 20~40min, detergent is obtained when being well mixed to each raw material；
(2) dosing pump is opened, the detergent in detergent tank is injected into decontamination Agitation Tank, is started in decontamination Agitation Tank
Electric heater, end-point temperature is determined according to field condition；
(3) decontamination is circulated：After temperature of charge in Agitation Tank to be decontaminated reaches assigned temperature, open the circulation pump, make decontamination
Agent is circulated by circulation line between decontamination Agitation Tank and external system；By adjust the power output of circulating pump come
Adjust the fluid flow in circulation line；
(4) after circulation decontamination terminates, pH adjusting agent, and open the circulation pump is added into decontamination Agitation Tank, decontamination will be circulated
PH value in system is adjusted to neutrality；Then (waste water car interface row will be opened in the display device by discharge of wastewater to nuclear power station
Put)；
(5) clear water is injected in decontamination Agitation Tank, open the circulation pump in circulation decontamination system to carrying out wash cycles 1~2
It is secondary.
In above-mentioned steps (1), more sub-sampling detection pH value in whipping process, up to pH stable to constant value.
In above-mentioned steps (2), the end-point temperature is 40-50 DEG C.
In above-mentioned steps (3), after open the circulation pump, every 4~6min carries out one cycle decontamination system in preceding half an hour
Liquid sampling in system, and the radioactive dosage analysis synchronized is tested with pH, and the end of circulation decontamination is determined according to analysis result
Point.
In above-mentioned steps (3), the sample tap set from the test pipeline section of circulation line samples, and samples the radioactivity in liquid
When dosage and pH value of solution no longer rise, that is, regard as decontamination terminal.
Advantages of the present invention and beneficial effect are：
1st, traditional offline decontamination is higher by irradiation dose to personnel, and when being removed to loop, workload is huge,
Easily form substantial amounts of radioaerosol and other solid waste, add personnel, environment by irradiation potential safety hazard.
2nd, the mode combined is wanted invention applies chemical decontamination method and online decontamination cycles device, to nuclear power facility one
Loop carries out chemical cycle decontamination, can greatly reduce decontamination time and decontamination cost, and the detergent used is inorganization
Compound, reduce the difficulty of later stage Spent Radioactive water process.
3rd, the present invention has necessarily perspective in principle and field practice, and inorganic detergent has been selected in decontamination process
Agent and corrosion inhibiter, while decontamination is carried out to nuclear power metal structure is crucial, protected using corrosion inhibiter by the metallic conduit of decontamination,
Decontamination process is simple to operate, without the plant equipment of complexity, while equipment and technique after improvement, can equally apply and its
The online decontamination engineering of his pipeline.
Brief description of the drawings
Fig. 1 is the online washer structural representation of nuclear power facility primary Ioops radioactive pollution of the present invention.
In figure：1 dosing mouth；2 detergent tanks；3 support frames；4 liquid level gauges with a scale；5 dosing pumps；6 exhaust outlets；7 decontaminations are matched somebody with somebody
Flow container；8 sample taps；9 waste water car interfaces；10 sewage draining exits；11 electric heaters；12 water supplement ports；13 test pipeline sections；14 glass plate liquid levels
Meter；15 thermometers；16 pressure gauge A；17 circulating pumps；18 pressure gauge B；19- reaction vessels A；20- reaction vessels B；21- pipelines I；
22- pipelines II；23- pipelines III.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
The present invention is the online washer of nuclear power facility primary Ioops radioactive pollution and method, and the structure of the equipment is as schemed
Shown in 1.The equipment includes decontamination agent storage device, circulation decontamination system and external system；Each several part concrete structure is as follows：
(1) decontamination agent storage device：Including detergent tank 2, support frame 3 and liquid level gauge with a scale 4；The detergent tank 2
On support frame 3, the top of detergent tank 2 is provided with dosing mouth 1, sets liquid level gauge 4 with a scale and stirring to fill in detergent tank 2
Put；
(2) decontamination system is circulated：Including dosing pump 5, decontamination Agitation Tank 7, electric heater 11, the and of glass plate liquid level gauge 14
Circulation line；The decontamination Agitation Tank 7 is connected by pipeline I 21 with the bottom of detergent tank 2, and pipeline I 21 is provided with dosing
Pump 5；Electric heater 11, agitating device and glass plate liquid level gauge 14 are provided with the decontamination Agitation Tank 7, passes through glass plate liquid level gauge
Liquid level in 14 pairs of decontamination Agitation Tanks 7 is tested, and the liquid in decontamination Agitation Tank 7 can be added by electric heater 11
Heat, have the characteristics that to heat up.The liquid in decontamination Agitation Tank 7 is stirred by agitating device；The decontamination Agitation Tank 7
Top be provided with exhaust outlet 6 and water supplement port 12, exhaust outlet 6 is beneficial to the discharge of waste gas in circulation decontamination operation, and water supplement port 12 is beneficial to
Box house cleans.The bottom of decontamination Agitation Tank sets sewage draining exit 10, and sewage draining exit 10 is easy to discharge caused miscellaneous during decontamination
Matter.
The side middle and lower part of decontamination Agitation Tank 7 sets sample tap 8 and waste water car interface 9, and sample tap 8 is easy to monitoring in real time to go
Liquid component in dirty Agitation Tank 7, waste water car interface 9 are used for the discharge of waste liquid after decontamination.The opposite side of decontamination Agitation Tank passes through
Circulation line is connected with external system.The external system includes reaction vessel A19 and reaction vessel B20.
The circulation line includes pipeline II 22 and pipeline III 23, and one end of pipeline II 22 is connected to decontamination Agitation Tank 7
Bottom, the other end are divided into the bottom of two branch roads, two branch road difference coupled reaction device A19 and reactor B 20；Pipeline III 23
One end is connected to the top of decontamination Agitation Tank 7, and the other end is divided into two branch roads, two branch roads difference coupled reaction device A19 and anti-
Answer device B20 top.
The pipeline II 22 is provided with thermometer 15 and circulating pump 17, and the both sides of circulating pump 17 are set respectively on pipeline II 22
Pressure gauge A16 and pressure gauge B18；Connecting test pipeline section 13 on the pipeline III 23.The decontamination Agitation Tank 7 passes through circulation line
Connect the entrance of circulating pump 17 and decontamination and return liquid, be easy to by the detergent that detergent tank 2 is sent be delivered to external system (reaction vessel A,
Reaction vessel B) carry out circulation decontamination.
The detergent tank and decontamination Agitation Tank of the equipment use acid-alkali-corrosive-resisting material.The bottom of detergent tank 2 and support
Connected mode between frame is welding, can ensure that the medicaments such as decontamination host, aggressive agent, sustained release agent uniformly mix with water, real
When monitor detergent ingredient.In addition, the dosing pump 5 that the exit design of detergent tank 2 has acid and alkali-resistance characteristic (connects with pipeline for flange
Connect), for conveying the decontamination medicament prepared to decontamination Agitation Tank 7.The flow and lift of dosing pump 5, according to decontamination system
The size and elevation of water capacity, can voluntarily be selected.
Use the said equipment nuclear power facility primary Ioops radioactive pollution is carried out the process of online decontamination for：According to live feelings
Condition establishes circulation washer, at the scene the facility such as reasonable Arrangement decontamination Agitation Tank, detergent tank and connection associated cyclic pipeline,
And the pipeline of washer is connected with the primary coolant circuit pipe of nuclear power facility, and carry out installation and debugging.After debugging is good, to decontamination
In agent tank add detergent each component and solvent, stirring fully after, according to corresponding operational procedure to nuclear power facility one
Circuit lines carry out circulation decontamination.After circulation decontamination terminates, the solvent in circulation decontamination system is neutralized, with clear water to following
Ring decontamination system is cleaned.
Embodiment 1：
The present embodiment is that nuclear power facility primary Ioops radioactive pollution carries out online decontamination, is comprised the following steps that：
(1) online washer is connected with primary coolant circuit pipe, then adds decontamination into detergent tank from dosing mouth
Each raw material components of agent, open agitating device and stir 20~40min, detergent is obtained when being well mixed to each raw material；
(2) dosing pump is opened, the detergent in detergent tank is injected into decontamination Agitation Tank, is started in decontamination Agitation Tank
Electric heater, end-point temperature is determined according to field condition；
(3) decontamination is circulated：After temperature of charge in Agitation Tank to be decontaminated reaches assigned temperature, open the circulation pump, make decontamination
Agent is circulated by circulation line between decontamination Agitation Tank and external system；By adjust the power output of circulating pump come
Adjust the fluid flow in circulation line；
(4) after circulation decontamination terminates, appropriate pH adjusting agent, and open the circulation pump is added into decontamination Agitation Tank, will be followed
PH value in ring decontamination system is adjusted to neutrality；Then (will open waste water car to connect in the display device of discharge of wastewater to nuclear power station
Mouth discharge)；
(5) clear water is injected in decontamination Agitation Tank, open the circulation pump in circulation decontamination system to carrying out wash cycles 1~2
It is secondary.
In above-mentioned steps (1), more sub-sampling detection pH value in whipping process, up to pH stable to constant value.
In above-mentioned steps (2), the end-point temperature is 40-50 DEG C.
In above-mentioned steps (3), after open the circulation pump, every 4~6min carries out one cycle decontamination system in preceding half an hour
Liquid sampling in system, and the radioactive dosage analysis synchronized is tested with pH, and the end of circulation decontamination is determined according to analysis result
Point.
In above-mentioned steps (3), the sample tap set from the test pipeline section of circulation line samples, and samples the radioactivity in liquid
When dosage and pH value of solution no longer rise, that is, regard as decontamination terminal.
Embodiment result shows that the present invention is online to being carried out inside nuclear power facility primary Ioops using chemical cycle decontamination method
Decontamination is circulated, the working time of field personnel is greatly reduced relative to offline decontamination, reduces staff and is irradiated
Dosage, protect the safety of personnel, the public and environment.
The principal character and technological merit of the present invention is shown above, and there is low reagent cost, Preparation equipment and processing side
The advantages such as method is simple, processing cost is low.The present invention is not limited to the above embodiments, is not departing from cardinal principle of the present invention and examination
On the premise of agent scope, various changes and modifications of the present invention are possible, and these changes and improvements both fall within this claimed hair
In bright scope.
Claims (10)
- A kind of 1. online washer of nuclear power facility primary Ioops radioactive pollution, it is characterised in that：The equipment is stored up including detergent Cryopreservation device, circulation decontamination system and external system；Wherein：Decontamination agent storage device：For storing detergent, including detergent tank, support frame and liquid level gauge with a scale；The decontamination For agent tank on support frame, the top of detergent tank is provided with dosing mouth, sets liquid level gauge with a scale and stirring to fill in detergent tank Put, liquid level gauge with a scale is used for the amount for measuring solution in detergent tank, and agitating device is used to stir material in detergent tank Mix；Circulate decontamination system：Including dosing pump, decontamination Agitation Tank, electric heater, glass plate liquid level gauge and circulation line；It is described to go Dirty Agitation Tank is connected by pipeline I with the bottom of detergent tank, and pipeline I is provided with dosing pump；Open dosing pump, detergent tank Interior material enters in decontamination Agitation Tank；Electric heater and glass plate liquid level gauge are provided with the decontamination Agitation Tank；It is described to go Material in dirty Agitation Tank is circulated by circulation line between decontamination Agitation Tank and external system；External system：Including reaction vessel A and reaction vessel B.
- 2. the online washer of nuclear power facility primary Ioops radioactive pollution according to claim 1, it is characterised in that：It is described The top of decontamination Agitation Tank is provided with exhaust outlet and water supplement port, and the bottom of decontamination Agitation Tank sets sewage draining exit, and the one of decontamination Agitation Tank Side middle and lower part sets sample tap and waste water car interface, the opposite side of decontamination Agitation Tank to be connected by circulation line with external system.
- 3. the online washer of nuclear power facility primary Ioops radioactive pollution according to claim 2, it is characterised in that：It is described Circulation line includes pipeline II and pipeline III, and one end of pipeline II is connected to the bottom of decontamination Agitation Tank, and the other end is divided into two The bottom of branch road, two branch road difference coupled reaction device A and reactor B；One end of pipeline III is connected to the upper of decontamination Agitation Tank Portion, the other end are divided into the top of two branch roads, two branch road difference coupled reaction device A and reactor B.
- 4. the online washer of nuclear power facility primary Ioops radioactive pollution according to claim 3, it is characterised in that：It is described Pipeline II is provided with thermometer and circulating pump, and the both sides of circulating pump respectively set a pressure gauge on pipeline II；On the pipeline III Connecting test pipeline section.
- 5. the online washer of nuclear power facility primary Ioops radioactive pollution according to claim 1, it is characterised in that：It is described Detergent tank and decontamination Agitation Tank use acid-alkali-corrosive-resisting material.
- 6. the online decontamination method of nuclear power facility primary Ioops radioactive pollution carried out using equipment described in claim 1, its feature It is：This method comprises the following steps：(1) online washer is connected with primary coolant circuit pipe, detergent is then added into detergent tank from dosing mouth Each raw material components, open agitating device and stir 20~40min, detergent is obtained when being well mixed to each raw material；(2) dosing pump is opened, the detergent in detergent tank is injected into decontamination Agitation Tank, starts the electricity in decontamination Agitation Tank Heater, end-point temperature is determined according to field condition；(3) decontamination is circulated：After temperature of charge in Agitation Tank to be decontaminated reaches assigned temperature, open the circulation pump, lead to detergent Circulation line is crossed to be circulated between decontamination Agitation Tank and external system；Adjusted by adjusting the power output of circulating pump Fluid flow in circulation line；(4) after circulation decontamination terminates, pH adjusting agent, and open the circulation pump is added into decontamination Agitation Tank, decontamination system will be circulated Interior pH value is adjusted to neutrality；Then by the display device by discharge of wastewater to nuclear power station；(5) clear water is injected in decontamination Agitation Tank, open the circulation pump in circulation decontamination system to carrying out wash cycles 1~2 time.
- 7. the online decontamination method of nuclear power facility primary Ioops radioactive pollution carried out using equipment described in claim 6, its feature It is：In step (1), more sub-sampling detection pH value in whipping process, up to pH stable to constant value.
- 8. the online decontamination method of nuclear power facility primary Ioops radioactive pollution carried out using equipment described in claim 6, its feature It is：In step (2), the end-point temperature is 40-50 DEG C.
- 9. the online decontamination method of nuclear power facility primary Ioops radioactive pollution carried out using equipment described in claim 6, its feature It is：In step (3), after open the circulation pump, every 4~6min carries out liquid in one cycle decontamination system in preceding half an hour Sampling, and the radioactive dosage analysis synchronized is tested with pH, and the terminal of circulation decontamination is determined according to analysis result.
- 10. the online decontamination method of nuclear power facility primary Ioops radioactive pollution carried out using equipment described in claim 9, its feature It is：In step (3), the sampling of the sample tap that is set from the test pipeline section of circulation line, sample radioactive dosage in liquid and When pH value of solution no longer rises, that is, regard as decontamination terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711008420.4A CN107767982A (en) | 2017-10-25 | 2017-10-25 | A kind of online washer of nuclear power facility primary Ioops radioactive pollution and method |
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| CN201711008420.4A CN107767982A (en) | 2017-10-25 | 2017-10-25 | A kind of online washer of nuclear power facility primary Ioops radioactive pollution and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597628A (en) * | 2018-05-22 | 2018-09-28 | 广东核电合营有限公司 | A kind of radiation protection method for Spent Fuel Pool dilatation |
| CN110959183A (en) * | 2018-05-11 | 2020-04-03 | 原子能股份公司 | Device for electrochemical decontamination of metal radioactive wastes |
| CN115641979A (en) * | 2022-10-26 | 2023-01-24 | 核工业北京化工冶金研究院 | Chemical method online decontamination device and decontamination method for pipeline |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325410A (en) * | 1992-11-30 | 1994-06-28 | Westinghouse Electric Corporation | Clean-up system for the chemical decontamination of a nuclear reactor primary system |
| JPH06214098A (en) * | 1993-01-20 | 1994-08-05 | Toshiba Corp | Chemical decontamination device |
| JPH08136696A (en) * | 1994-11-14 | 1996-05-31 | Toshiba Corp | Chemical decontamination method for inside of reactor facility system |
| JP2006105828A (en) * | 2004-10-06 | 2006-04-20 | Toshiba Plant Systems & Services Corp | Chemical decontamination method |
| CN1988051A (en) * | 2005-12-19 | 2007-06-27 | 中国辐射防护研究院 | Pollutant removing process and pollutant removing agent for radioactive pollution metal |
| KR20080056846A (en) * | 2006-12-19 | 2008-06-24 | 한전케이피에스 주식회사 | A method for diluted chemical decontamination of np reactor coolant pump internal contaminated by radioactive substance |
| CN205128497U (en) * | 2015-11-19 | 2016-04-06 | 中广核工程有限公司 | Be used for detergent movable apparatus of tankage |
| CN106098129A (en) * | 2016-06-14 | 2016-11-09 | 中广核工程有限公司 | The portable online radioactive decontamination system of nuclear power station |
| CN107170503A (en) * | 2017-06-02 | 2017-09-15 | 苏州热工研究院有限公司 | It is a kind of to reduce the chemical cleaning method of in-service PWR nuclear power plant collective dose |
| CN207441272U (en) * | 2017-10-25 | 2018-06-01 | 沈阳中科腐蚀控制工程技术有限公司 | A kind of online washer of nuclear power facility primary Ioops radioactive pollution |
-
2017
- 2017-10-25 CN CN201711008420.4A patent/CN107767982A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325410A (en) * | 1992-11-30 | 1994-06-28 | Westinghouse Electric Corporation | Clean-up system for the chemical decontamination of a nuclear reactor primary system |
| JPH06214098A (en) * | 1993-01-20 | 1994-08-05 | Toshiba Corp | Chemical decontamination device |
| JPH08136696A (en) * | 1994-11-14 | 1996-05-31 | Toshiba Corp | Chemical decontamination method for inside of reactor facility system |
| JP2006105828A (en) * | 2004-10-06 | 2006-04-20 | Toshiba Plant Systems & Services Corp | Chemical decontamination method |
| CN1988051A (en) * | 2005-12-19 | 2007-06-27 | 中国辐射防护研究院 | Pollutant removing process and pollutant removing agent for radioactive pollution metal |
| KR20080056846A (en) * | 2006-12-19 | 2008-06-24 | 한전케이피에스 주식회사 | A method for diluted chemical decontamination of np reactor coolant pump internal contaminated by radioactive substance |
| CN205128497U (en) * | 2015-11-19 | 2016-04-06 | 中广核工程有限公司 | Be used for detergent movable apparatus of tankage |
| CN106098129A (en) * | 2016-06-14 | 2016-11-09 | 中广核工程有限公司 | The portable online radioactive decontamination system of nuclear power station |
| CN107170503A (en) * | 2017-06-02 | 2017-09-15 | 苏州热工研究院有限公司 | It is a kind of to reduce the chemical cleaning method of in-service PWR nuclear power plant collective dose |
| CN207441272U (en) * | 2017-10-25 | 2018-06-01 | 沈阳中科腐蚀控制工程技术有限公司 | A kind of online washer of nuclear power facility primary Ioops radioactive pollution |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110959183A (en) * | 2018-05-11 | 2020-04-03 | 原子能股份公司 | Device for electrochemical decontamination of metal radioactive wastes |
| CN110959183B (en) * | 2018-05-11 | 2023-12-01 | 原子能股份公司 | Electrochemical decontamination device for metal radioactive waste |
| CN108597628A (en) * | 2018-05-22 | 2018-09-28 | 广东核电合营有限公司 | A kind of radiation protection method for Spent Fuel Pool dilatation |
| CN115641979A (en) * | 2022-10-26 | 2023-01-24 | 核工业北京化工冶金研究院 | Chemical method online decontamination device and decontamination method for pipeline |
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Application publication date: 20180306 |