CN101954362B - Special decontaminating apparatus for main pump hydraulic component - Google Patents
Special decontaminating apparatus for main pump hydraulic component Download PDFInfo
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- CN101954362B CN101954362B CN201010237611XA CN201010237611A CN101954362B CN 101954362 B CN101954362 B CN 101954362B CN 201010237611X A CN201010237611X A CN 201010237611XA CN 201010237611 A CN201010237611 A CN 201010237611A CN 101954362 B CN101954362 B CN 101954362B
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- decontamination
- decontaminating
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- main pump
- pump hydraulic
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Abstract
The invention relates to a decontaminating apparatus, in particular to a special decontaminating apparatus for a main pump hydraulic component, which comprises a decontaminating tank, and a demineralized water adapter, an overflowing pipe, an exhaust branch pipe and a reagent adapter which are positioned in the decontaminating tank. The decontaminating apparatus also comprises a circular heating and spraying circuit which comprises a spray pipe, a circulating pmp and circulating pipes connecting the spray pipe, decontaminating solution in the decontaminating tank and the circulating pump. The device is provided with the circular heating and spraying circuit for making the decontaminating solution cover the entire contaminated surface of the main pump hydraulic component and avoiding decontaminating blind area and keeps the decontaminating solution at a required temperature and uniform by continuous heating and mixing. On the premise of not increasing the total volume of the decontaminating tank, the ultrasonic wave decontaminating devices are arranged on the inner side wall and the bottom of the decontaminating tank to combine the cavitation effect of the ultrasonic waves and chemical decontamination; therefore, the decontaminating efficiency is improved considerably, the decontaminating period is shortened, and the secondary waste yield is reduced effectively.
Description
Technical field
The present invention relates to decontamination plant, be specifically related to the special-purpose decontamination plant of a kind of main pump hydraulic part.
Background technology
Behind the reactor operation some cycles, perhaps after breaking down, need be to a loop main coolant pump (hereinafter to be referred as the main pump) maintenance of disintegrating.Owing to be in the radioactive environment of a circuit cools agent for a long time, the main pump hydraulic part has accumulated very high radioactive dosage level, must radioactive dosage be reduced to the level that is suitable for overhauling through decontamination after, could begin upkeep operation.Main pump hydraulic part decontamination plant is specifically designed to the decontamination of main pump hydraulic part, and its design should be considered main pump hydraulic part its specific structure characteristics, considers the high radioactivity level of main pump hydraulic part again.
The design feature that is limited to main pump water conservancy parts can not drop into decontamination in the decontamination tank with whole parts, and there is the decontamination dead angle in general chemical immersion decontamination.
The high radioactivity level that is limited to main pump water conservancy parts, required decontamination cycle of general chemical immersion decontamination is long, and is difficult to the clean effect that reaches desirable.
Summary of the invention
The object of the present invention is to provide a kind of decontamination cycle short, clean effect good, the special-purpose decontamination plant of the little main pump hydraulic part of second-order activity amount of waste.
Realize the technical scheme of the object of the invention:
The special-purpose decontamination plant of a kind of main pump hydraulic part comprises decontamination tank, and the demineralized water adapter, overflow pipe, air draft arm, the reagent that are positioned at decontamination tank are taken over; Overflow pipe communicates with discharge outlet, and the air draft arm communicates with decontamination tank bottom air draft house steward; Demineralized water is taken over and the reagent adapter communicates with the DW system demineralized water system and the decontamination reagent system of outside respectively; Comprise that also the heating that circulates sprays the loop, this circulation heating spray loop comprises the shower that is installed in the decontamination tank inner upper end, the circulating pump that is installed in the decontamination tank outside, and the circulation pipe that is communicated with shower, the interior decontamination liquid of decontamination tank and circulating pump.
The special-purpose decontamination plant of aforesaid a kind of main pump hydraulic part, circulation heating spray loop also comprises the heater that is positioned at the decontamination tank outside, is used for heat cycles pipe medium.
The special-purpose decontamination plant of aforesaid a kind of main pump hydraulic part, decontamination tank inwall and/or bottom are provided with some groups of supersonic wave decontamination devices.
The special-purpose decontamination plant of aforesaid a kind of main pump hydraulic part, shower is made up of ring pipe and some injectors.
The special-purpose decontamination plant of aforesaid a kind of main pump hydraulic part, shower is made up of ring pipe and some injectors.
The special-purpose decontamination plant of aforesaid a kind of main pump hydraulic part, supersonic wave decontamination device operating frequency is 20～30kHz.
Effect of the present invention is: through adding circulation heating spray loop, make decontaminating solution can cover the whole contaminated surface of main pump hydraulic part, avoid existing the decontamination blind area, make decontaminating solution maintain required temperature all the time, decontaminating solution is kept evenly.Under the prerequisite that does not increase the decontamination tank overall volume, increase immersion supersonic wave decontamination device at decontamination tank madial wall and/or bottom, through adopting the supersonic wave decontamination technology; Hyperacoustic cavitation effect and chemical decontamination are combined; Increased substantially detersive efficiency, reduced the decontamination cycle, simultaneously the saturation threshold of ultrasonic wave effect raising decontaminating solution; Improve the utilization rate of decontaminating solution, effectively reduced the generation of secondary refuse.
Description of drawings
Fig. 1 is a kind of main pump hydraulic part decontamination tank device fundamental diagram that invention provided;
Fig. 2 is a kind of main pump hydraulic part decontamination plant structural representation that invention provided.
Among Fig. 2: 1. decontamination tank; 2. demineralized water is taken over; 3. overflow pipe; 4. air draft arm; 5. air draft house steward; 6. draining is taken over; 7. reagent is taken over; 8. shower; 9. sidewall is had children outside the state plan the ripple decontamination plant; 10. bottom supersonic wave decontamination device; 11. electric heater; 12. circulating pump; 13. circulation pipe; 14. skirt.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 2, the special-purpose decontamination plant of a kind of main pump hydraulic part comprises decontamination tank 1, and the demineralized water adapter 2, overflow pipe 3, air draft arm 4, the reagent that are positioned at decontamination tank 1 take over 7.Overflow pipe 3 communicates with discharge outlet, and air draft arm 4 communicates with decontamination tank 1 bottom air draft house steward 5.Demineralized water adapter 2 is taken over 7 with reagent and is communicated with the DW system demineralized water system and the decontamination reagent system of outside respectively.This device also comprises circulation heating spray loop; This circulation heating spray loop comprises the shower 8 that is installed in decontamination tank 1 inner upper end, the circulating pump 12 that is installed in decontamination tank 1 outside, and the circulation pipe 13 that is communicated with shower 8, decontamination tank 1 interior decontamination liquid and circulating pump 12.Shower 8 is made up of ring pipe and some injectors.Circulation heating spray loop also comprises the heater that is positioned at decontamination tank 1 outside, is used for heat cycles pipe 13 media.Be provided with sidewall supersonic wave decontamination device 9 and bottom excusing from death ripple decontamination plant 10 in the decontamination tank 1.
Decontamination tank 1 is used to hold main pump hydraulic part and decontaminating solution, and the physical dimension of the layout of its physical dimension and internals and main pump hydraulic part adapts, to guarantee to hold main pump hydraulic part and suitable decontaminating solution.Decontamination tank 1 is seated on the Equipment Foundations through skirt 14.Sidewall supersonic wave decontamination device 9 is arranged in decontamination tank 1 inboard ringwise, and bottom excusing from death ripple decontamination plant 10 horizontal arrangement are in decontamination tank 1 bottom.Supersonic wave decontamination device 9 and 10 in this device is selected the ultrasonic wave Vibration Box for use; But be not limited in this kind equipment; Can select the supersonic wave decontamination device of other type for use, supporting supersonic generator provides required high frequency electric source, and hyperacoustic operating frequency can be selected a kind of operating frequency between 20～30kHz; Also can be the combination of two or more frequencies, common selection be 28kHz.The purpose that the supersonic wave decontamination device is set in decontamination tank is the tack pollution of removing main pump hydraulic part surface in water through the cavitation effect that ultrasonic wave produces.
The internal duct of decontamination tank 1 is provided with as follows: demineralized water is taken over 2 and is used to receive the water supply from DW system demineralized water system; Overflow pipe 3 is used for decontamination tank 1 overflow water is discharged into the flowing line of process system; Air draft arm 4 is used for decontamination tank 1 upper space is continued exhaust, and each air draft arm gathers to the air draft house steward 5 who is positioned at decontamination tank 1 bottom, and air draft house steward 5 is connected to the radioactive emission treatment system; Draining is taken over 6 and is used for the waste liquid that decontamination produces is discharged into radioactive liquid waste collection and treatment system, and while conduct circulation heating sprays the inlet tube in loop, is connected to the inlet of the circulating pump 12 of decontamination tank 1 outside through circulation pipe 13; Reagent is taken over 7 and is used to receive the chemical reagent from the reagent preparation system; Shower 8 is connected to the outlet of the electric heater 12 of decontamination tank 1 outside through circulation pipe 13.The outer loop pipeline is communicated with decontamination tank 1, through electric heater decontaminating solution is continued heating, and the 8 pairs of decontaminating solution submergences of shower through being located at decontamination tank 1 upper position less than the position spray decontamination.Shower 8 is made up of a ring pipe and some injectors.The purpose that shower 8 is set be to normal liquid level submergence on the main pump hydraulic part less than lower flange face and flange neck area spray decontamination, avoided the decontamination blind area of original simple dependence chemical immersion decontamination existence.Decontamination tank 1 all inner pipelines are arranged along the decontamination tank sidewall ringwise.
Obviously, those skilled in the art can carry out various changes and modification to invention and not break away from the spirit and scope of the present invention.Belong within the scope of claim of the present invention and equivalent technologies thereof if these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (6)
1. the special-purpose decontamination plant of main pump hydraulic part comprises decontamination tank (1), and the demineralized water that is positioned at decontamination tank (1) is taken over (2), overflow pipe (3), air draft arm (4), reagent adapter (7); Overflow pipe (3) communicates with discharge outlet, and air draft arm (4) communicates with decontamination tank (1) bottom air draft house steward (5); Demineralized water takes over (2) and reagent adapter (7) communicates with the DW system demineralized water system and the decontamination reagent system of outside respectively; It is characterized in that: also comprise circulation heating spray loop; This circulation heating spray loop comprises the shower (8) that is installed in decontamination tank (1) inner upper end, the circulating pump (12) that is installed in decontamination tank (1) outside, and the circulation pipe (13) that is communicated with shower (8), the interior decontamination liquid of decontamination tank (1) and circulating pump (12).
2. according to the special-purpose decontamination plant of the described a kind of main pump hydraulic part of claim 1, it is characterized in that: described circulation heating spray loop also comprises the heater that is positioned at decontamination tank (1) outside, is used for heat cycles pipe (13) medium.
3. according to claim 1 or the special-purpose decontamination plant of 2 described a kind of main pump hydraulic parts, it is characterized in that: described decontamination tank (1) inwall and/or bottom are provided with some groups of supersonic wave decontamination devices.
4. according to the special-purpose decontamination plant of the described a kind of main pump hydraulic part of claim 3, it is characterized in that: described shower (8) is made up of ring pipe and some injectors.
5. according to claim 1 or the special-purpose decontamination plant of 2 described a kind of main pump hydraulic parts, it is characterized in that: described shower (8) is made up of ring pipe and some injectors.
6. by the special-purpose decontamination plant of the described a kind of main pump hydraulic part of claim 3, it is characterized in that: described supersonic wave decontamination device operating frequency is 20～30kHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010237611XA CN101954362B (en) | 2010-07-27 | 2010-07-27 | Special decontaminating apparatus for main pump hydraulic component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010237611XA CN101954362B (en) | 2010-07-27 | 2010-07-27 | Special decontaminating apparatus for main pump hydraulic component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101954362A CN101954362A (en) | 2011-01-26 |
| CN101954362B true CN101954362B (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010237611XA Expired - Fee Related CN101954362B (en) | 2010-07-27 | 2010-07-27 | Special decontaminating apparatus for main pump hydraulic component |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341463B (en) * | 2013-07-01 | 2015-05-06 | 深圳市华星光电技术有限公司 | Ultrasonic cleaning device |
| CN105139911B (en) * | 2015-08-05 | 2021-03-26 | 中国核电工程有限公司 | Spent fuel storage pool bottom scrubbing device |
| CN106816198B (en) * | 2015-11-30 | 2018-05-18 | 江苏核电有限公司 | A kind of nuclear power station packaged type main pump impeller decontamination facility |
| CN106847359A (en) * | 2015-12-03 | 2017-06-13 | 江苏核电有限公司 | A kind of packaged type decontamination facility |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2790688B1 (en) * | 1999-03-10 | 2001-05-04 | Franklab | METHOD FOR SUPPLYING WATER IN A QUICKLY ADJUSTED QUALITY AND TEMPERATURE OF A MEDICAL EQUIPMENT WASHING MACHINE OR THE LIKE |
| CN100525937C (en) * | 2005-09-01 | 2009-08-12 | 杨智勇 | Ultrasonic wave intensified chemical cleaning method and apparatus |
| CN201493296U (en) * | 2009-09-01 | 2010-06-02 | 中国石油天然气股份有限公司 | Internal combustion engine cylinder body cleaning system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07111025B2 (en) * | 1993-06-15 | 1995-11-29 | 株式会社日阪製作所 | Rolled absorbent cotton and other package washing method and device |
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2010
- 2010-07-27 CN CN201010237611XA patent/CN101954362B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2790688B1 (en) * | 1999-03-10 | 2001-05-04 | Franklab | METHOD FOR SUPPLYING WATER IN A QUICKLY ADJUSTED QUALITY AND TEMPERATURE OF A MEDICAL EQUIPMENT WASHING MACHINE OR THE LIKE |
| CN100525937C (en) * | 2005-09-01 | 2009-08-12 | 杨智勇 | Ultrasonic wave intensified chemical cleaning method and apparatus |
| CN201493296U (en) * | 2009-09-01 | 2010-06-02 | 中国石油天然气股份有限公司 | Internal combustion engine cylinder body cleaning system |
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| Publication number | Publication date |
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| CN101954362A (en) | 2011-01-26 |
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