CN209810864U - Cleaning device for spent fuel transfer container of nuclear power plant - Google Patents
Cleaning device for spent fuel transfer container of nuclear power plant Download PDFInfo
- Publication number
- CN209810864U CN209810864U CN201920420404.4U CN201920420404U CN209810864U CN 209810864 U CN209810864 U CN 209810864U CN 201920420404 U CN201920420404 U CN 201920420404U CN 209810864 U CN209810864 U CN 209810864U
- Authority
- CN
- China
- Prior art keywords
- spent fuel
- water
- nuclear power
- power plant
- cleaning
- 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.)
- Active
Links
Landscapes
- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model belongs to the technical field of nuclear power station spent fuel transports, concretely relates to a belt cleaning device and method for nuclear power plant spent fuel transports container. The utility model discloses a demineralized water tank, plunger pump, water distributor, wash bowl, shower nozzle, demineralized water tank are connected with the plunger pump, and the plunger pump is connected with the water distributor, and the water distributor is connected with the wash bowl, is equipped with 3 shower nozzles on every layer of wash bowl. The utility model discloses the method includes following step: step 1, cleaning a barrel body for water sealing test; and 2, decontamination. The utility model discloses can decontaminate the surface of spent fuel transportation container and wash the purpose in order to reach the control of preventing foreign matter control and radiation pollution control.
Description
Technical Field
The utility model belongs to the technical field of the nuclear power station spent fuel transports, concretely relates to a belt cleaning device that is used for nuclear power plant spent fuel to transport container.
Background
In order to prevent foreign matters from being brought in by the container entering the spent fuel pool and radioactive substances from being brought out by the container exiting the spent fuel pool during the transportation of the spent fuel, the container must be decontaminated and washed before and after entering and leaving the water. Because the container is bulky and radioactive, in order to carry out all-round washing on the container, collect washing water and prevent the washing water from leaking to a factory building to pollute the environment, a system device special for washing the spent fuel container in the nuclear power plant needs to be designed.
Disclosure of Invention
The utility model provides a technical problem:
the utility model provides a belt cleaning device and method for nuclear power plant spent fuel transportation container can decontaminate the washing in order to reach the purpose of preventing foreign matter control and radiation pollution control to spent fuel transportation container's surface.
The utility model adopts the technical proposal that:
the utility model provides a belt cleaning device for nuclear power plant spent fuel transfer container, includes demineralized water tank, plunger pump, water distributor, wash bowl, shower nozzle, and the demineralized water tank is connected with the plunger pump, and the plunger pump is connected with the water distributor, and the water distributor is connected with the wash bowl, is equipped with 3 shower nozzles on every layer of wash bowl.
The inside of the cleaning barrel is provided with a plurality of layers.
The water distributor is connected with each layer of the cleaning barrel through a plurality of pipelines.
And a plurality of pipelines of the water distributor are provided with water inlet valves.
A cleaning method for a spent fuel transfer container comprises the following steps: step 1, cleaning a barrel body for water sealing test; and 2, decontamination.
The step 1 comprises the following steps:
step 1.1, injecting water into a desalting water tank to reach a liquid level of 90%;
step 1.2, opening a water inlet valve of the water quantity distributor and a water outlet valve at the uppermost layer, and closing other valves;
step 1.3, starting a pump at low pressure, gradually increasing the water pressure to 6MPa, flushing for 20min, and inspecting whether cleaning water is sprayed, dripped and splashed to a platform or the ground on the cleaning barrel body in a surrounding manner in the process; stopping the pump and then checking the pump again;
step 1.4, opening a water outlet valve of the second layer, starting a plunger pump, flushing for 5min, and checking whether the cleaning barrel, the water pump and the pipeline have the conditions of dripping and water leakage; sequentially testing for 3-5min from top to bottom by the circulation, and checking whether water overflows from the area outside the decontamination support;
step 1.5, if no overflow exists, the cleaning barrel body is well sealed; if overflow occurs, the sealing of the cleaning barrel body is checked, and the sealing performance is tested again.
The step 2 comprises the following steps:
step 2.1, checking whether a front door and a rear door of the cleaning barrel are closed and tightened, and injecting water into the desalting water tank to 90% of liquid level;
step 2.2, opening a water inlet valve and a water outlet valve at the uppermost layer, and closing other valves;
step 2.3, adjusting the pressure regulating valve to the lowest, starting a water pump, slowly adjusting the water pressure to 6MPa, inspecting whether water leakage exists around the cleaning barrel, and washing for 3-5 min;
2.4, washing for 3min once according to the sequence from the upper layer to the lower layer to finish washing of other layers;
and 2.5, flushing for 1 time before entering the water tank and flushing for 3 times after leaving the water tank according to the steps.
The utility model has the advantages that:
1. the utility model provides a cleaning device and a method for a spent fuel transfer container of a nuclear power plant, which is provided with a water tank for storing desalted water for cleaning, wherein the desalted water tank has a certain volume, and can control the washing water quantity for cleaning each time so as to collect and discharge the cleaning water;
2. the utility model provides a cleaning device and a method for a spent fuel transfer container of a nuclear power plant, which are provided with a cleaning barrel, can collect cleaning sewage and effectively prevent the cleaning sewage from leaking to the ground of a factory building;
3. the utility model provides a cleaning device and a method for a spent fuel transfer container of a nuclear power plant, which are provided with 9 groups of spray heads which are distributed around the inner wall of a cleaning barrel in 9 heights and can be sprayed on the container to be cleaned in all directions;
4. the utility model provides a cleaning device and a method for a spent fuel transfer container of a nuclear power plant, which is provided with a water distributor, a valve on the distributor can be adjusted to adjust the cleaning water quantity of 9 cleaning heights, and the best cleaning effect is ensured;
5. the utility model provides a pair of a belt cleaning device and method for nuclear power plant spent fuel transfer container is provided with the plunger pump, can guarantee to wash the flow and the pressure of water under the low liquid level condition of demineralized water tank.
Drawings
Fig. 1 is a schematic structural view of a cleaning device for a spent fuel transfer container of a nuclear power plant according to the present invention;
in the figure: 1-a demineralized water tank, 2-a plunger pump, 3-a water distributor, 4-a cleaning barrel and 5-a spray head.
Detailed Description
The following provides a cleaning device for a spent fuel transfer container of a nuclear power plant, which is described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the utility model provides a pair of a belt cleaning device for nuclear power plant spent fuel transfer container, including demineralized water tank 1, plunger pump 2, water distributor 3, wash bowl 4, shower nozzle 5, demineralized water tank 1 is connected with plunger pump 2, and plunger pump 2 is connected with water distributor 3, and wash bowl 4 is inside to be equipped with a plurality of layers, and water distributor 3 is connected with each layer of wash bowl 4 through a plurality of pipeline, is equipped with 3 shower nozzles 5 on every layer of wash bowl 4.
A cleaning method for a spent fuel transfer container comprises the following steps:
step 1, cleaning barrel body water sealing test
Step 1.1, injecting water into a desalting water tank to reach a liquid level of 90%;
step 1.2, opening a water inlet valve with one inlet and nine outlets of the water quantity distributor and a water outlet valve of a first layer (the uppermost layer), and closing other valves;
and 1.3, starting the pump at low pressure, gradually increasing the water pressure to 6MPa, flushing for 20min, and inspecting whether cleaning water is sprayed, dripped and splashed to the platform or the ground on the cleaning barrel body in a surrounding manner in the process. The pump is stopped and then the check is carried out.
And step 1.4, opening a water outlet valve of the second layer, starting a plunger pump, flushing for 5min, and checking whether the cleaning barrel, the water pump and the pipeline have the conditions of dripping and water leakage. Sequentially testing for 3-5min from top to bottom by the circulation, and checking whether water overflows from the area outside the decontamination support;
step 1.5, if no overflow exists, the cleaning barrel body is well sealed; if overflow occurs, the sealing of the cleaning barrel body is checked, and the sealing performance is tested again.
Step 2, decontamination phase
Step 2.1, checking whether a front door and a rear door of the cleaning barrel are closed and tightened, and injecting water into the desalting water tank to 90% of liquid level;
step 2.2, opening a water inlet valve with one inlet and nine outlets and a water outlet valve on the 1 st layer (the uppermost layer), and closing other valves with one inlet and nine outlets;
step 2.3, adjusting the pressure regulating valve to the lowest, starting a water pump, slowly adjusting the water pressure to 6MPa, inspecting whether water leakage exists around the cleaning barrel, and washing for 3-5 min;
and 2.4, washing for 3min once according to the sequence from the upper layer to the lower layer to finish 9-layer washing.
And 2.5, flushing for 1 time before entering the water tank and flushing for 3 times after leaving the water tank according to the steps.
Claims (4)
1. The utility model provides a belt cleaning device for nuclear power plant spent fuel transports container which characterized in that: the device comprises a demineralized water tank (1), a plunger pump (2), a water distributor (3), a cleaning barrel (4) and a sprayer (5), wherein the demineralized water tank (1) is connected with the plunger pump (2), the plunger pump (2) is connected with the water distributor (3), the water distributor (3) is connected with the cleaning barrel (4), and each layer of the cleaning barrel (4) is provided with 3 sprayers (5).
2. The cleaning device for the nuclear power plant spent fuel transfer container according to claim 1, characterized in that: the cleaning cylinder (4) is internally provided with a plurality of layers.
3. The cleaning device for the nuclear power plant spent fuel transfer container according to claim 2, characterized in that: the water distributor (3) is connected with each layer of the cleaning cylinder (4) through a plurality of pipelines.
4. The cleaning device for the nuclear power plant spent fuel transfer container according to claim 3, characterized in that: a plurality of pipelines of the water distributor (3) are provided with water inlet valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920420404.4U CN209810864U (en) | 2019-03-29 | 2019-03-29 | Cleaning device for spent fuel transfer container of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920420404.4U CN209810864U (en) | 2019-03-29 | 2019-03-29 | Cleaning device for spent fuel transfer container of nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209810864U true CN209810864U (en) | 2019-12-20 |
Family
ID=68877880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920420404.4U Active CN209810864U (en) | 2019-03-29 | 2019-03-29 | Cleaning device for spent fuel transfer container of nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209810864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000173A (en) * | 2019-03-29 | 2019-07-12 | 江苏核电有限公司 | A kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container |
-
2019
- 2019-03-29 CN CN201920420404.4U patent/CN209810864U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000173A (en) * | 2019-03-29 | 2019-07-12 | 江苏核电有限公司 | A kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203200824U (en) | Automatic washing water tank | |
| CN209810864U (en) | Cleaning device for spent fuel transfer container of nuclear power plant | |
| CN208355382U (en) | Cleaning machine and its spray irrigation device | |
| CN208495296U (en) | A kind of spent fuel transport container decontamination operating platform | |
| CN201537610U (en) | Main pump ultrasonic cleaning device | |
| CN110000173A (en) | A kind of cleaning device and method for spent nuclear fuel in nuclear power plant transfer container | |
| CN103967077A (en) | Anti-flooding device of secondary water supply pump house | |
| CN111495901A (en) | Tank body inner surface cleaning system | |
| CN204661292U (en) | A kind of differential pressure type chemicals dosing plant and differential pressure medicine system | |
| JPH09329683A (en) | Reactor pressure suppression device and repairing method for its cooling water spray system | |
| CN209613735U (en) | A kind of internal washing structure of freeze dryer | |
| CN113432901A (en) | Containment suppression heat extraction test system | |
| CN206052860U (en) | Water tank with spray | |
| CN210966056U (en) | Heavy oil continuous cleaning device with automatically switched water tanks | |
| CN211757156U (en) | A belt cleaning device for chinese-medicinal material | |
| CN205075797U (en) | A device for rinsing surperficial dust borne radioactivity of radiation protection engineering equipment | |
| CN206731650U (en) | Oil removing spray equipment | |
| CN210814673U (en) | Washing tower for treating volatile organic waste gas | |
| CN104697290B (en) | The recovery system and application method of the unnecessary nitrogen of fractionating column in oxygen generating plant | |
| CN206489817U (en) | It is a kind of to simulate the electrophoretic coating experimental provision that dissolubility influences again | |
| CN219965390U (en) | Coating head normal position belt cleaning device and coating equipment | |
| CN209012079U (en) | A kind of paint spray booth's water supply self-priming apparatus | |
| CN214077423U (en) | Water paint spraying equipment | |
| CN210258365U (en) | Energy-saving and environment-friendly car washer | |
| CN221209107U (en) | Rubber plug pre-cleaning equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |