CN110000173A - A kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container - Google Patents
A kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container Download PDFInfo
- Publication number
- CN110000173A CN110000173A CN201910252827.4A CN201910252827A CN110000173A CN 110000173 A CN110000173 A CN 110000173A CN 201910252827 A CN201910252827 A CN 201910252827A CN 110000173 A CN110000173 A CN 110000173A
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- Prior art keywords
- water
- cleaning
- transfer container
- power plant
- nuclear power
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention belongs to Nuclear Power Station's Exhausted Fuels to transport technical field, and in particular to a kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container.The present invention includes sweet-water tank, plunger pump, water dispenser, wash bowl, spray head, and sweet-water tank is connect with plunger pump, and plunger pump is connect with water dispenser, and water dispenser is connect with wash bowl, and every layer of wash bowl is equipped with 3 spray heads.The method of the present invention includes the following steps: step 1, cleaning staving water test；Step 2, decontamination stage.The present invention can carry out decontamination cleaning to the surface of spentnuclear fuel transfer container to achieve the purpose that anti-foreign matter control and radiation pollution control.
Description
Technical field
The invention belongs to Nuclear Power Station's Exhausted Fuels to transport technical field, and in particular to one kind is held for spent nuclear fuel in nuclear power plant transhipment
The cleaning device and method of device.
Background technique
In spentnuclear fuel transport process, container enters that Spent Fuel Pool brings foreign matter into and container goes out spentnuclear fuel in order to prevent
Radioactive substance is taken in pond out of, it is necessary to carry out decontamination flushing to it before container enters water and after water outlet.Since container volume is larger
And radioactivity is had, in order to carry out comprehensive flushing to it, and collects flushing water, prevents cleaning leaked water to workshop dirt
Environment is contaminated, so needing to design a kind of system equipment for being exclusively used in the flushing of spent nuclear fuel in nuclear power plant container.
Summary of the invention
Present invention solves the technical problem that:
The present invention provides a kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container, can turn to spentnuclear fuel
The surface of fortune container carries out decontamination cleaning to achieve the purpose that anti-foreign matter control and radiation pollution control.
The technical solution adopted by the present invention:
A kind of cleaning device for spent nuclear fuel in nuclear power plant transfer container, including sweet-water tank, plunger pump, water dispenser,
Wash bowl, spray head, sweet-water tank are connect with plunger pump, and plunger pump is connect with water dispenser, and water dispenser is connect with wash bowl, clearly
Every layer of washing cylinder is equipped with 3 spray heads.
Several layers are equipped with inside the wash bowl.
The water dispenser is connected by each layer of several pipelines and wash bowl.
Several pipelines of the water dispenser are equipped with inlet valve.
A kind of cleaning method for spentnuclear fuel transfer container includes the following steps: step 1, cleaning staving water-stop examination
It tests；Step 2, decontamination stage.
The step 1 includes the following steps:
Step 1.1 is filled to 90% liquid level to sweet-water tank；
Step 1.2, the inlet valve and top layer's outlet valve for opening water operation device, and close other valves；
Step 1.3, low pressure play pump, and are gradually increased hydraulic pressure to 6MPa, rinse 20min, it is clear to look around inspection in the process
Whether cask washing body has cleaning water injection, water clock, is splashed on platform or ground；It is reexamined one time after termination of pumping；
Step 1.4 opens second layer outlet valve, starts plunger pump and rinses 5min, checks cleaning barrel, water pump, pipe
Whether line has water clock, water leakage situation；It is recycled with this, successively tests 3~5min from top to bottom, checked whether there is water and overflow decontamination branch
Seat is with exterior domain；
It is step 1.5, such as non-spill, then clean staving good seal；If any spilling, cleaning staving sealing is checked, and again
Test its leakproofness.
The step 2 includes the following steps:
Step 2.1, inspection cleaning barrel front door and back door are that a no closing tightens, and are filled to 90% liquid level to sweet-water tank；
Step 2.2 opens water inlet valve and top layer's outlet valve, closes other valves；
Step 2.3, pressure-regulating valve is transferred to it is minimum, open water pump, hydraulic pressure is slowly adjusted to 6MPa, and make an inspection tour cleaning
Whether there is or not leaks around bucket, rinse 3-5min；
Step 2.4, according to the sequence from upper layer to lower layer, once flushing 3min completes other layers and rinses；
Step 2.5, according to above-mentioned steps, rinsed 1 time before entering pond, flush cycle 3 times after discharge bay.
Beneficial effects of the present invention:
1, a kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container provided by the invention, is provided with water
Case, for storing cleaning demineralized water, sweet-water tank given volume can control the washing water quantity cleaned every time so as to ejected wash water
Collection discharge；
2, a kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container provided by the invention, is provided with cleaning
Bucket collects cleaning sullage, cleaning sullage is effectively prevent to leak to facility floor；
3, a kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container provided by the invention, is provided with 9 groups
Spray head, point 9 height placements comprehensive can be sprayed on container to be cleaned in cleaning barrel periphery of inner wall；
4, a kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container provided by the invention, is provided with water
Distributor, the valve being adjusted on distributor adjust the cleaning water of 9 cleaning height, guarantee that cleaning effect is best；
5, a kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container provided by the invention, is provided with plunger
Pump, it is ensured that the flow and pressure of ejected wash water in sweet-water tank low liquid level.
Detailed description of the invention
Fig. 1 is a kind of cleaning device structural schematic diagram for spent nuclear fuel in nuclear power plant transfer container provided by the invention；
In figure: 1- sweet-water tank, 2- plunger pump, 3- water dispenser, 4- wash bowl, 5- spray head.
Specific embodiment
One kind that invention provides is transported for spent nuclear fuel in nuclear power plant in the following with reference to the drawings and specific embodiments
The cleaning device of container is described in further detail.
As shown in Figure 1, a kind of cleaning device for spent nuclear fuel in nuclear power plant transfer container provided by the invention, including desalination
Water tank 1, plunger pump 2, water dispenser 3, wash bowl 4, spray head 5, sweet-water tank 1 are connect with plunger pump 2, and plunger pump 2 is matched with moisture
Device 3 connects, and several layers are equipped with inside wash bowl 4, and water dispenser 3 is connect by several pipelines with each layer of wash bowl 4, cleans
Every layer of cylinder 4 is equipped with 3 spray heads 5.
A kind of cleaning method for spentnuclear fuel transfer container provided by the invention, includes the following steps:
Step 1, cleaning staving water test
Step 1.1 is filled to 90% liquid level to sweet-water tank；
Step 1.2, one into nine inlet valve and first layer (top layer) outlet valve gone out for opening water operation device, and
Close other valves；
Step 1.3, low pressure play pump, and are gradually increased hydraulic pressure to 6MPa, rinse 20min, it is clear to look around inspection in the process
Whether cask washing body has cleaning water injection, water clock, is splashed on platform or ground.It is reexamined one time after termination of pumping.
Step 1.4 opens second layer outlet valve, starts plunger pump and rinses 5min, checks cleaning barrel, water pump, pipe
Whether line has water clock, water leakage situation.It is recycled with this, successively tests 3~5min from top to bottom, checked whether there is water and overflow decontamination branch
Seat is with exterior domain；
It is step 1.5, such as non-spill, then clean staving good seal；If any spilling, cleaning staving sealing is checked, and again
Test its leakproofness.
Step 2, decontamination stage
Step 2.1, inspection cleaning barrel front door and back door are that a no closing tightens, and are filled to 90% liquid level to sweet-water tank；
Step 2.2, opening one into nine, water inlet valve and the 1st layer of (top layer) outlet valve, closing one into nine go out out
Other valves；
Step 2.3, pressure-regulating valve is transferred to it is minimum, open water pump, hydraulic pressure is slowly adjusted to 6MPa, and make an inspection tour cleaning
Whether there is or not leaks around bucket, rinse 3-5min；
Step 2.4, according to the sequence from upper layer to lower layer, once flushing 3min completes 9 layers of flushing.
Step 2.5, according to above-mentioned steps, rinsed 1 time before entering pond, flush cycle 3 times after discharge bay.
Claims (7)
1. a kind of cleaning device for spent nuclear fuel in nuclear power plant transfer container, it is characterised in that: including sweet-water tank (1), plunger
(2), water dispenser (3), wash bowl (4), spray head (5) are pumped, sweet-water tank (1) is connect with plunger pump (2), plunger pump (2) and water
Distributor (3) connection, water dispenser (3) are connect with wash bowl (4), and every layer of wash bowl (4) is equipped with 3 spray heads (5).
2. a kind of cleaning device for spent nuclear fuel in nuclear power plant transfer container according to claim 1, it is characterised in that: institute
It states and is equipped with several layers inside wash bowl (4).
3. a kind of cleaning device for spent nuclear fuel in nuclear power plant transfer container according to claim 2, it is characterised in that: institute
Water dispenser (3) are stated to connect by several pipelines with each layer of wash bowl (4).
4. a kind of cleaning device for spent nuclear fuel in nuclear power plant transfer container according to claim 3, it is characterised in that: institute
Several pipelines for stating water dispenser (3) are equipped with inlet valve.
5. a kind of cleaning method for spentnuclear fuel transfer container, feature used by the apparatus according to claim 1
It is: includes the following steps: step (1), cleaning staving water test；Step (2), decontamination stage.
6. a kind of cleaning method for spentnuclear fuel transfer container according to claim 5, it is characterised in that: the step
(1) include the following steps:
Step (1.1) is filled to 90% liquid level to sweet-water tank；
Step (1.2), the inlet valve and top layer's outlet valve for opening water operation device, and close other valves；
Step (1.3), low pressure play pump, and are gradually increased hydraulic pressure to 6MPa, rinse 20min, look around inspection cleaning in the process
Whether staving has cleaning water injection, water clock, is splashed on platform or ground；It is reexamined one time after termination of pumping；
Step (1.4) opens second layer outlet valve, starts plunger pump and rinses 5min, checks cleaning barrel, water pump, pipeline
Whether water clock, water leakage situation are had；It is recycled with this, successively tests 3~5min from top to bottom, checked whether there is water and overflow decontamination support
With exterior domain；
It is step (1.5), such as non-spill, then clean staving good seal；If any spilling, cleaning staving sealing is checked, and try again
Test its leakproofness.
7. a kind of cleaning method for spentnuclear fuel transfer container according to claim 6, it is characterised in that: the step
(2) include the following steps:
Step (2.1), inspection cleaning barrel front door and back door are that a no closing tightens, and are filled to 90% liquid level to sweet-water tank；
Step (2.2) opens water inlet valve and top layer's outlet valve, closes other valves；
Step (2.3), pressure-regulating valve is transferred to it is minimum, open water pump, hydraulic pressure is slowly adjusted to 6MPa, and make an inspection tour cleaning barrel
Whether there is or not leaks for surrounding, rinse 3-5min；
Step (2.4), according to the sequence from upper layer to lower layer, once flushing 3min completes other layers and rinses；
Step (2.5), according to above-mentioned steps, rinsed 1 time before entering pond, flush cycle 3 times after discharge bay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910252827.4A CN110000173A (en) | 2019-03-29 | 2019-03-29 | A kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910252827.4A CN110000173A (en) | 2019-03-29 | 2019-03-29 | A kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container |
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| CN110000173A true CN110000173A (en) | 2019-07-12 |
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| CN201910252827.4A Pending CN110000173A (en) | 2019-03-29 | 2019-03-29 | A kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container |
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Citations (10)
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|---|---|---|---|---|
| DE19708001A1 (en) * | 1997-02-07 | 1998-08-13 | Fitr Ges Fuer Innovation Im Ti | Movable device for inspecting or cleaning pipes, conduits and channels |
| TW200934593A (en) * | 2008-02-13 | 2009-08-16 | Fad Internat Dev Co Ltd | Method for washing water supply pipe |
| CN101941011A (en) * | 2010-09-03 | 2011-01-12 | 中国广东核电集团有限公司 | Working platform of cleaning pool of fuel plant |
| CN102453921A (en) * | 2011-08-12 | 2012-05-16 | 鹤壁格瑞机器设备清洗有限公司 | Cleaning method for underground drainage pipeline of coal mine |
| CN204365676U (en) * | 2014-11-21 | 2015-06-03 | 中国核电工程有限公司 | A kind of flusher |
| CN204512747U (en) * | 2014-12-25 | 2015-07-29 | 大唐科技产业集团有限公司 | A kind of mist eliminator flushing pipeline leakage detection system |
| CN107476555A (en) * | 2017-07-25 | 2017-12-15 | 广东核电合营有限公司 | A kind of fuel for nuclear power plant factory building service sink workbench and its installation method |
| CN108672449A (en) * | 2018-06-22 | 2018-10-19 | 中核核电运行管理有限公司 | Cobalt isotope transports outward container and rinses environmental control system |
| CN208495296U (en) * | 2017-12-29 | 2019-02-15 | 中国核动力研究设计院 | A kind of spent fuel transport container decontamination operating platform |
| CN209810864U (en) * | 2019-03-29 | 2019-12-20 | 江苏核电有限公司 | Cleaning device for spent fuel transfer container of nuclear power plant |
-
2019
- 2019-03-29 CN CN201910252827.4A patent/CN110000173A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19708001A1 (en) * | 1997-02-07 | 1998-08-13 | Fitr Ges Fuer Innovation Im Ti | Movable device for inspecting or cleaning pipes, conduits and channels |
| TW200934593A (en) * | 2008-02-13 | 2009-08-16 | Fad Internat Dev Co Ltd | Method for washing water supply pipe |
| CN101941011A (en) * | 2010-09-03 | 2011-01-12 | 中国广东核电集团有限公司 | Working platform of cleaning pool of fuel plant |
| CN102453921A (en) * | 2011-08-12 | 2012-05-16 | 鹤壁格瑞机器设备清洗有限公司 | Cleaning method for underground drainage pipeline of coal mine |
| CN204365676U (en) * | 2014-11-21 | 2015-06-03 | 中国核电工程有限公司 | A kind of flusher |
| CN204512747U (en) * | 2014-12-25 | 2015-07-29 | 大唐科技产业集团有限公司 | A kind of mist eliminator flushing pipeline leakage detection system |
| CN107476555A (en) * | 2017-07-25 | 2017-12-15 | 广东核电合营有限公司 | A kind of fuel for nuclear power plant factory building service sink workbench and its installation method |
| CN208495296U (en) * | 2017-12-29 | 2019-02-15 | 中国核动力研究设计院 | A kind of spent fuel transport container decontamination operating platform |
| CN108672449A (en) * | 2018-06-22 | 2018-10-19 | 中核核电运行管理有限公司 | Cobalt isotope transports outward container and rinses environmental control system |
| CN209810864U (en) * | 2019-03-29 | 2019-12-20 | 江苏核电有限公司 | Cleaning device for spent fuel transfer container of nuclear power plant |
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