CN108672449A - Cobalt isotope transports outward container and rinses environmental control system - Google Patents
Cobalt isotope transports outward container and rinses environmental control system Download PDFInfo
- Publication number
- CN108672449A CN108672449A CN201810652643.2A CN201810652643A CN108672449A CN 108672449 A CN108672449 A CN 108672449A CN 201810652643 A CN201810652643 A CN 201810652643A CN 108672449 A CN108672449 A CN 108672449A
- Authority
- CN
- China
- Prior art keywords
- high pressure
- water
- holder
- shielding curtain
- main pipe
- 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.)
- Pending
Links
- 229910017052 cobalt Inorganic materials 0.000 title claims abstract description 25
- 239000010941 cobalt Substances 0.000 title claims abstract description 25
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 230000007613 environmental effect Effects 0.000 title claims abstract description 16
- 230000032258 transport Effects 0.000 title description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 238000010612 desalination reaction Methods 0.000 claims abstract description 13
- 238000011010 flushing procedure Methods 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000002915 spent fuel radioactive waste Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000012267 brine Substances 0.000 claims 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims 1
- 238000011109 contamination Methods 0.000 abstract description 10
- 239000002927 high level radioactive waste Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000013011 mating Effects 0.000 abstract description 2
- 238000005406 washing Methods 0.000 description 3
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
- B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
- B08B9/28—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by splash, spray, or jet application, with or without soaking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention belongs to nuclear power station high-level radioactive waste technical fields; environmental control system is rinsed more particularly to a kind of cobalt isotope outward transport container; when purpose is to develop a set of cobalt isotope shielded coffin water outlet; by to the comprehensive flushing of container; the high of vessel surface will be adsorbed on and radiate hot spot and loose contamination under the flushing of high pressure demineralized water; corresponding high radioactivity hot spot and loose contamination can be rinsed, while under mating water-proof curtain protection, effective protection staff and power house environment.It is characterized in that：It includes Water shielding curtain holder, Water shielding curtain, suspender belt, high pressure desalination (operating) water nozzle, high pressure demineralized water main pipe, holder and mounting base.The present invention is easy to use, washes off highly exothermic point and loose contamination is good, staff is avoided to receive the risk of unexpected dose irradiation, it is ensured that operating personnel are safe and in effective protection power house environment, meet power station use and have suffered production cobalt isotope in the phase in longevity.
Description
Technical field
The invention belongs to nuclear power station high-level radioactive waste technical fields, and in particular to a kind of cobalt isotope outward transport container
Rinse environmental control system.
Background technology
Two heavy water reactor units of Qinshan Phase II NPP can also produce cobalt isotope, but cobalt isotope is given birth to other than normal power generation
Production saves cobalt isotope by one and is packed into hanging basket, then will transport outward shielded coffin again, and decline by underwater operation equipment
To spentnuclear fuel bottom of pond, the cobalt isotope equipped with hanging basket is loaded into shielded coffin by sequence of operations, by container screen
Sealing in place is blocked, then container is hung out into pond and is transferred to outside, waits readys for delivery.But shielded coffin outer surface is in spentnuclear fuel
Pond attach some height radiation hot spots and loose contamination exist, such as wash off hot spot not in time, may result in staff by
Radio exposure and loose contamination diffusion, exist in view of factors above, need to open development one and emerge in container and just open
Beginning is rinsed whole container with high pressure demineralized water, and after high pressure washing, highly exothermic point and loose contamination are in high pressure water washing
Under, all follow high pressure demineralized water to fall pond, to avoid staff by high radiating irradiation and loose contamination not everywhere
Diffusion, in effect protection staff and power house environment.
Invention content
When it is an object of the invention to develop a set of cobalt isotope shielded coffin water outlet, by the comprehensive punching of container
It washes, the high of vessel surface will be adsorbed on and radiate hot spot and loose contamination under the flushing of high pressure demineralized water, it can be by corresponding high radiation
Property hot spot and loose contamination rinse, while under mating water-proof curtain protection, effective protection staff and power house environment.
The invention is realized in this way：
A kind of cobalt isotope outward transport container flushing environmental control system, including Water shielding curtain holder, Water shielding curtain, suspender belt, high pressure are removed
Brine-spray nozzle, high pressure demineralized water main pipe, holder and mounting base；Mounting base is fixed on Spent Fuel Pool side, for realizing right
In the fixation of high pressure demineralized water main pipe and holder；The lower end of holder is fixed on mounting base, for realizing for Water shielding curtain branch
The fixation of frame；Water shielding curtain holder is fixed on the left end of holder, for installing Water shielding curtain；Water shielding curtain is sleeved on Water shielding curtain holder,
For being shielded for Co 60 shipping container flushing process；The right end of high pressure demineralized water main pipe is fixed on mounting base, is used
In transferring high voltage demineralized water；Suspender belt is mounted on the upper end of Co 60 shipping container, for realizing the lifting for Co 60 shipping container；
High pressure desalination (operating) water nozzle is arranged on the inner wall of high pressure demineralized water main pipe, for spraying high pressure demineralized water.
Water shielding curtain as described above is generally annular, is highly more than the height of Co 60 shipping container.
Water shielding curtain holder as described above generally annular frame structure, is folded by the consistent circular ring shape of upper and lower two sizes
Composition, the circular ring shape diameter is added to be more than Co 60 shipping container diameter；By the way that Water shielding curtain holder is arranged, realize for Water shielding curtain
It is fixed, ensure water blocking effect.
High pressure demineralized water main pipe generally cirque structure, right end as described above is connected with control valve, passes through control
Valve connects high-pressure hydraulic pump；Eight mounting holes are evenly equipped in the inner side end of high pressure demineralized water main pipe, for installing high pressure desalination
(operating) water nozzle；The outer diameter of high pressure demineralized water main pipe is one-half inch, and inside is used for the circulation of high pressure demineralized water.
The outer diameter of high pressure demineralized water main pipe as described above is one-half inch, and inside is used for the stream of high pressure demineralized water
It is logical.
Water shielding curtain holder, suspender belt, high pressure desalination (operating) water nozzle, high pressure demineralized water main pipe, holder and installation bottom as described above
Plate is all made of stainless steel material and is made, and Water shielding curtain is made of waterproof cloth material.
The beneficial effects of the invention are as follows：
Cobalt isotope outward transport cask flask flushing environmental control system described in the present invention is safe and reliable, easy to use, punching
It washes away except highly exothermic point and loose contamination are good, avoids staff from receiving the risk of unexpected dose irradiation, it is ensured that operating personnel
Safety and in effective protection power house environment, meets power station use and has suffered in the phase in longevity and produce cobalt isotope, the domestic and international identical power station of wound
Similar high-level waste storage equipment advanced level.
Description of the drawings
Fig. 1 is that the cobalt isotope outward transport container of the present invention rinses the structural schematic diagram of environmental control system；
Fig. 2 is that the cobalt isotope outward transport container of the present invention rinses the front view of environmental control system；
Fig. 3 is that the cobalt isotope outward transport container of the present invention rinses the vertical view of environmental control system.
Wherein：1. Co 60 shipping container, 2. Water shielding curtain holders, 3. Water shielding curtains, 4. suspender belts, 5. high pressure desalination (operating) water nozzles, 6.
High pressure demineralized water main pipe, 7. holders, 8. mounting bases.
Specific implementation mode
The present invention is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2 and Figure 3, a kind of cobalt isotope outward transport container rinses environmental control system, including Water shielding curtain holder
2, Water shielding curtain 3, suspender belt 4, high pressure desalination (operating) water nozzle 5, high pressure demineralized water main pipe 6, holder 7 and mounting base 8.Mounting base 8 is solid
It is scheduled on Spent Fuel Pool side, for realizing the fixation for high pressure demineralized water main pipe 6 and holder 7.The lower end of holder 7 is fixed on peace
It fills on bottom plate 8, for realizing the fixation for Water shielding curtain holder 2.Water shielding curtain holder 2 is fixed on the left end of holder 7, for installing
Water shielding curtain 3.Water shielding curtain 3 is sleeved on Water shielding curtain holder 2, for being shielded for 1 flushing process of Co 60 shipping container.High pressure
The right end of demineralized water main pipe 6 is fixed on mounting base 8, is used for transmission high pressure demineralized water.Suspender belt 4 is mounted on Co 60 shipping container
1 upper end, for realizing the lifting for Co 60 shipping container 1.High pressure desalination (operating) water nozzle 5 is arranged in high pressure demineralized water main pipe 6
Inner wall on, for spraying high pressure demineralized water.
Water shielding curtain 3 is generally annular, is highly more than the height of Co 60 shipping container 1.It is realized for Co 60 by Water shielding curtain 3
Shipping container 1 is completely covered.
The generally annular frame structure of Water shielding curtain holder 2 is made of, institute the consistent circular ring shape superposition of upper and lower two sizes
It states circular ring shape diameter and is more than 1 diameter of Co 60 shipping container.By setting Water shielding curtain holder 2, the fixation for Water shielding curtain 3 is realized,
Ensure water blocking effect.
High pressure demineralized water main pipe 6 generally cirque structure, right end are connected with control valve, are connected by control valve high
Water pump.Eight mounting holes are evenly equipped in the inner side end of high pressure demineralized water main pipe 6, for installing high pressure desalination (operating) water nozzle 5.It is high
It is one-half inch to press the outer diameter of demineralized water main pipe 6, and inside is used for the circulation of high pressure demineralized water.
In the present embodiment, Water shielding curtain holder 2, suspender belt 4, high pressure desalination (operating) water nozzle 5, high pressure demineralized water main pipe 6, holder 7
Stainless steel material is all made of with mounting base 8 to be made, Water shielding curtain 3 is made of waterproof cloth material.
The operating process of the present invention is as follows：
1. suspender belt 4 is connected with 1 lifting lug of Co 60 shipping container, one is added to be connected with workshop crane.
2. after container Spent Fuel Pool in place installs cobalt isotope, crane is promoted, container water outlet, movement is cleaned in annulus.
3. opening shelves cascade holder 2, grade cascade 3 is put down.
4. starting high-pressure hydraulic pump, control valve is opened.
5. crane band container moves up and down in annulus, fills after washing a few hours, close high-pressure hydraulic pump and control valve.
6. packing up grade cascade 3, restore shelves cascade holder 2.
7. Co 60 shipping container 1 is moved to pond side using crane.
The above is only the preferred embodiments of the invention, is illustrated herein：Method based on the principle of the invention improve and
Structural adjustment all will be regarded as protection scope of the present invention.
Claims (6)
1. a kind of cobalt isotope outward transport container rinses environmental control system, it is characterised in that：It includes Water shielding curtain holder (2), water blocking
Curtain (3), suspender belt (4), high pressure desalination (operating) water nozzle (5), high pressure demineralized water main pipe (6), holder (7) and mounting base (8)；Bottom is installed
Plate (8) is fixed on Spent Fuel Pool side, for realizing the fixation for high pressure demineralized water main pipe (6) and holder (7)；Holder (7)
Lower end be fixed on mounting base (8), for realizing the fixation for Water shielding curtain holder (2)；Water shielding curtain holder (2) is fixed on
The left end of holder (7), for installing Water shielding curtain (3)；Water shielding curtain (3) is sleeved on Water shielding curtain holder (2), for being transported for Co 60
Defeated container (1) flushing process is shielded；The right end of high pressure demineralized water main pipe (6) is fixed on mounting base (8), is used for transmission
High pressure demineralized water；Suspender belt (4) is mounted on the upper end of Co 60 shipping container (1), for realizing hanging for Co 60 shipping container (1)
Dress；High pressure desalination (operating) water nozzle (5) is arranged on the inner wall of high pressure demineralized water main pipe (6), for spraying high pressure demineralized water.
2. cobalt isotope outward transport container according to claim 1 rinses environmental control system, it is characterised in that：The water blocking
Curtain (3) is generally annular, is highly more than the height of Co 60 shipping container (1).
3. cobalt isotope outward transport container according to claim 1 rinses environmental control system, it is characterised in that：The water blocking
Curtain holder (2) generally annular frame structure is made of the consistent circular ring shape superposition of upper and lower two sizes, and the circular ring shape is straight
Diameter is more than Co 60 shipping container (1) diameter；By the way that Water shielding curtain holder (2) is arranged, realizes the fixation for Water shielding curtain (3), ensure
Water blocking effect.
4. cobalt isotope outward transport container according to claim 1 rinses environmental control system, it is characterised in that：The high pressure
Demineralized water main pipe (6) generally cirque structure, right end are connected with control valve, and high-pressure hydraulic pump is connected by control valve；
The inner side end of high pressure demineralized water main pipe (6) is evenly equipped with eight mounting holes, for installing high pressure desalination (operating) water nozzle (5)；High pressure is removed
The outer diameter of brine main pipe (6) is one-half inch, and inside is used for the circulation of high pressure demineralized water.
5. cobalt isotope outward transport container according to claim 4 rinses environmental control system, it is characterised in that：The high pressure
The outer diameter of demineralized water main pipe (6) is one-half inch, and inside is used for the circulation of high pressure demineralized water.
6. to go the outward transport container of the cobalt isotope described in 1-5 any one to rinse environmental control system according to right, it is characterised in that：
Water shielding curtain holder (2), suspender belt (4), high pressure desalination (operating) water nozzle (5), high pressure demineralized water main pipe (6), holder (7) and the installation
Bottom plate (8) is all made of stainless steel material and is made, and Water shielding curtain (3) is made of waterproof cloth material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810652643.2A CN108672449A (en) | 2018-06-22 | 2018-06-22 | Cobalt isotope transports outward container and rinses environmental control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810652643.2A CN108672449A (en) | 2018-06-22 | 2018-06-22 | Cobalt isotope transports outward container and rinses environmental control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108672449A true CN108672449A (en) | 2018-10-19 |
Family
ID=63811798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810652643.2A Pending CN108672449A (en) | 2018-06-22 | 2018-06-22 | Cobalt isotope transports outward container and rinses environmental control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108672449A (en) |
Cited By (2)
| 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 |
| CN115889374A (en) * | 2022-12-01 | 2023-04-04 | 中核环保产业有限公司 | Special equipment for wiping and decontaminating surface of spent fuel dry-method storage container |
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| CN115889374A (en) * | 2022-12-01 | 2023-04-04 | 中核环保产业有限公司 | Special equipment for wiping and decontaminating surface of spent fuel dry-method storage container |
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Application publication date: 20181019 |