CN103157627A - Cleaning tool for detection device for nuclear reactor rod cluster control assembly (RCCA) - Google Patents
Cleaning tool for detection device for nuclear reactor rod cluster control assembly (RCCA) Download PDFInfo
- Publication number
- CN103157627A CN103157627A CN2011104294797A CN201110429479A CN103157627A CN 103157627 A CN103157627 A CN 103157627A CN 2011104294797 A CN2011104294797 A CN 2011104294797A CN 201110429479 A CN201110429479 A CN 201110429479A CN 103157627 A CN103157627 A CN 103157627A
- Authority
- CN
- China
- Prior art keywords
- gas
- nuclear reactor
- cleaning
- connection handle
- cleaning rod
- 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.)
- Granted
Links
Images
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention belongs to the technical field of nuclear power plant equipment radioactive decontamination, particularly relates to a cleaning tool for a detection device for a nuclear reactor rod cluster control assembly (RCCA). A connection plate is in a rectangular hollow cavity structure, a plurality of holes communicated with the rectangular hollow cavity are evenly distributed in one lateral surface, and two ashore air pipe connectors communicated with the rectangular hollow cavity are symmetrically installed on the other lateral surface. Cleaning rods are respectively in a cylindrical hollow cavity structure, wherein a plurality of air holes are evenly distributed in each cleaning rod. A connection handle is in a rectangular plate-shaped structure, wherein a plurality of through holes are evenly distributed in the connection handle. A plurality of the cleaning rods are combined into a cleaning rod group through the connection handle, the upper end of each cleaning rod is connected and fixed with one through hole in the connection handle and is connected with a corresponding hole in the connection plate through an air pipe, an air source is respectively connected with the two ashore air pipe connectors through a pipeline, and the pipelines between the air source and the two ashore air pipe connectors are sequentially provided with a stop valve and a pressure regulating valve. The cleaning tool for the detection device for the nuclear reactor RCCA is capable of effectively removing pollutant on the detection device, and lowering the radioactive dosage of the detection device.
Description
Technical field
The invention belongs to nuclear power plant equipment radioactive decontamination technical field, be specifically related to a kind of nuclear reactor control cluster component inspection device cleaning means.
Background technology
Nuclear reactor control cluster assembly (RCCA) plays very important effect in whole nuclear power station, it is mainly used in conditioned reaction heap power and shutdown when urgent.Growth along with active time, swelling, wearing and tearing and defects i.e.cracks can appear in RCCA, therefore need to carry out inservice inspection to it, and by to repeatedly checking data analysis, the comparison obtain, the wearing and tearing that evaluation and test occurs, speed and the trend of swelling are with the life-span that extends as far as possible RCCA and the safety and economic operation of guaranteeing nuclear power station.
Have very high radioactivity due to control rod after operation, and be easy to after the nuclear fuel breakage at barred body surface contamination radioactive substance.When the RCCA cluster is implemented to check, be that this cluster is inserted in one group of trepanning with different probe sensors, implement to check when down (or up) moves at cluster.because the cluster surface is accompanied with a lot of hot dust, in cluster moves up and down process, the dust on cluster surface can be scraped by the guider on trepanning and drop on testing fixture, make testing fixture after being finished with very strong radioactivity, make operating personnel to approach, even surpassed in some cases 250 millis uncommon/hour, if do not clean, can be subject to the restriction of water outlet dosage and cause the testing fixture can't water outlet, and can make operating personnel in follow-up loading and unloading, be subjected to the radiation exposure of ultrahigh dose in transportation and maintenance process, therefore this testing fixture is carried out decontamination extremely important.RCCA inservice inspection is normally carried out in cooling pond or Spent Fuel Pool, due to the specific (special) requirements of pond to water quality, and the complexity of this body structure of RCCA testing fixture, the cleaning method of many routines is all infeasible, as scrub with brush, wiping, water flushing etc., and can't clean testing fixture inside, and because the too strong operating personnel of radiation can't approach; Again due to the special construction of the detection probe on testing fixture and extremely expensive price, can not adopt the cleaning method such as ultrasonic wave to clean, otherwise might damage detection probe.
What at present both at home and abroad the decontamination of radiocontamination equipment is adopted is the methods such as wiping, flushing or vibration of ultrasonic wave decontamination, but also there is no a cover for a special-purpose RCCA testing fixture decontamination instrument of cover of the characteristics exploitation of RCCA testing fixture.
Summary of the invention
The object of the present invention is to provide a kind of nuclear reactor control cluster component inspection device cleaning means, with the radioactive dosage of effective reduction testing fixture, reach acceptable level.
For achieving the above object, the technical solution used in the present invention is:
A kind of nuclear reactor control cluster component inspection device cleaning means, this instrument comprise source of the gas, stop valve, pressure regulator valve, some cleaning rods, connection handle, some tracheaes, connecting plate and two disembarkation gas-tpe fittings; Described connecting plate is the rectangular enclosure structure, and one is evenly equipped with several holes on the side, and each Kong Junyu rectangular enclosure connects, and is symmetrically installed with two disembarkation gas-tpe fittings on its another side, and the rectangular enclosure of disembarkation gas-tpe fitting and connecting plate connects; Described cleaning rod is the cylindrical cavity structure, is evenly equipped with several pores on cleaning rod; Described connection handle is the rectangular plate shape structure, is evenly equipped with several through holes on it, and is corresponding with the hole on connecting plate; Some cleaning rods accumulate the cleaning rod group by connection handle, and insert in a through hole of connection handle the upper end of every cleaning rod, and the upper end of cleaning rod and connection handle are connected and fixed; The upper end of every cleaning rod is connected with corresponding hole on connecting plate by tracheae; Described source of the gas is connected with two disembarkation gas-tpe fittings respectively by pipeline, is disposed with stop valve and pressure regulator valve on the pipeline between source of the gas and two disembarkation gas-tpe fittings.
Described cleaning rod is formed by connecting by lower end, barred body and upper end from bottom to up successively; Be evenly equipped with several pores on described barred body; Described upper end inserts in a through hole of connection handle, and upper end and connection handle are connected and fixed; Described upper end is connected with corresponding hole on connecting plate by tracheae.
The two ends of described tracheae, and the junction, hole of the upper end of tracheae and cleaning rod, connecting plate is respectively arranged with gas-tpe fitting.
Described lower end be shaped as bullet-shaped.
Described upper end is connected and fixed by screw thread and connection handle.
Be provided with " one becomes a two " gas-separating valve on pipeline between described source of the gas and two disembarkation gas-tpe fittings; Described gas-separating valve will be divided into two-way and be connected with two disembarkation gas-tpe fittings respectively by the pipeline that source of the gas is drawn; Be disposed with stop valve and pressure regulator valve on pipeline between described source of the gas and gas-separating valve.
The diameter of described cleaning rod is less than the diameter of control rod.
The center that described connecting plate is equipped with the side of disembarkation gas-tpe fitting is equipped with connector, its structure and outside lifting device coupling.
The obtained beneficial effect of the present invention is:
Nuclear reactor control cluster component inspection device cleaning means of the present invention can be disposable the insertion testing fixture inner, effectively remove the pollutant of testing fixture, reduce its radioactive dosage, thereby reduce equipment inspection attendant's radioactive dose, improve service efficiency and the flexibility of testing fixture.Specific as follows:
(1) by cleaning rod being inserted testing fixture inside, pass into gas in cleaning rod, gas is under the inside and outside differential pressure effect, form bubble by the pore on cleaning rod, produce vibration, bubble directly impacts the detection probe of testing fixture and the pollution face of centralising device, can effectively clean the pollutant of these component surfaces, reduce the radiological dose of testing fixture, have clean effect preferably;
(2) during decontamination, will be inserted by the cleaning rod group that some cleaning rods form and implement decontamination in testing fixture and clean, once plug just can be completed the detection probe of all testing fixtures and the decontamination of centralising device thereof, has the efficient of higher decontamination;
(3) lower end of cleaning rod bullet-shaped, bootable cleaning rod enter detection probe and the centralising device of testing fixture smoothly.
Description of drawings
Fig. 1 is nuclear reactor control cluster component inspection device cleaning means overall structure figure of the present invention;
Fig. 2 is the local connection layout of nuclear reactor control cluster component inspection device cleaning means of the present invention;
Fig. 3 is the connecting board structure figure of nuclear reactor control cluster component inspection device cleaning means of the present invention;
Fig. 4 is the cleaning rod structure chart of nuclear reactor control cluster component inspection device cleaning means of the present invention;
Fig. 5 is the air hole structure figure on the cleaning rod of nuclear reactor control cluster component inspection device cleaning means of the present invention;
Fig. 6 is the cleaning rod working state schematic representation of nuclear reactor control cluster component inspection device cleaning means of the present invention;
In figure: 1, source of the gas; 2, stop valve; 3, pressure regulator valve; 4, gas-tpe fitting; 5, cleaning rod; 6, connection handle; 7, tracheae; 8, connecting plate; 9, disembarkation gas-tpe fitting; 10, connector; 11, lower end; 12, barred body; 13, upper end; 14, pore; 15, detection probe; 16, probe retainer.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, nuclear reactor control cluster component inspection device cleaning means of the present invention comprises source of the gas 1, stop valve 2, pressure regulator valve 3, gas-tpe fitting 4, some cleaning rods 5, connection handle 6, some tracheaes 7, connecting plate 8, two disembarkation gas-tpe fittings 9 and connector 10; As shown in Figure 3, described connecting plate 8 is the rectangular enclosure structure, be evenly equipped with several holes on the one side, each Kong Junyu rectangular enclosure connects, be symmetrically installed with two disembarkation gas-tpe fittings 9 on its another side, disembarkation gas-tpe fitting 9 connects with the rectangular enclosure of connecting plate 8, and the center of this side also is equipped with connector 10; As shown in Figure 4, described cleaning rod 5 is the cylindrical cavity structure, is formed by connecting by lower end 11, barred body 12 and the upper end 13 of bullet-shaped successively from bottom to up; As shown in Figure 5, be evenly equipped with several pores 14 on barred body 12; Described connection handle 6 is the rectangular plate shape structure, is evenly equipped with several through holes on it, and is corresponding with the hole on connecting plate 8; Some cleaning rods 5 accumulate the cleaning rod group by connection handle 6, and the upper end 13 of every cleaning rod 5 inserts in a through hole of connection handle 6, and upper end 13 is connected and fixed by screw thread and connection handle 6; The upper end 13 of every cleaning rod 5 is connected with corresponding hole on connecting plate 8 by tracheae 7; At the two ends of tracheae 7, and tracheae 7 is respectively arranged with gas-tpe fitting 4 with the upper end 13 of cleaning rod 5, the junction, hole of connecting plate 8; Described source of the gas 1 is connected with two disembarkation gas-tpe fittings 9 respectively by pipeline, and be provided with " one becomes a two " gas-separating valve on the pipeline between source of the gas 1 and two disembarkation gas-tpe fittings 9, this gas-separating valve will be divided into two-way and be connected with two disembarkation gas-tpe fittings 9 respectively by the pipeline that source of the gas 1 is drawn; Be disposed with stop valve 2 and pressure regulator valve 3 on the pipeline between source of the gas 1 and gas-separating valve.
The compressed air that described source of the gas 1 needs when being used for providing cleaning means work; Described stop valve 2 is used for opening or closing gas piping; Described pressure regulator valve 3 is used for regulating the pipeline gas pressure; The cleaning rod group that is comprised of some cleaning rods 5 is the core component of a whole set of cleaning means, be directly used in the detection probe and the centralising device that clean testing fixture, its lower end 11 is used for detection probe and the centralising device that guiding cleaning rod 5 enters corresponding testing fixture, its upper end 13 is used for the location of cleaning rod 5 and introduces compressed air, and the diameter of cleaning rod 5 is slightly less than the diameter of control rod; Described connector 10 is as the interface of this cleaning means and outside lifting device, and its structure and outside lifting device mate.
as shown in Figure 6, after the RCCA site inspection finishes, directly grasp this cleaning means with the RCCA gripping tool, lower end 11 by each cleaning rod 5 is with each cleaning rod 5 and testing fixture centering, slowly the cleaning rod group is put in the detection probe and centralising device of corresponding testing fixture after centering, after the cleaning rod group puts in place, opening stop valve 2, source of the gas 1 begins to pass into compressed air, compressed air is from source of the gas 1 stop valve 2 of flowing through successively, pressure regulator valve 3, gas-separating valve, two disembarkation gas-tpe fittings 9, the rectangular enclosure of connecting plate 8, each tracheae 7, enter at last each cleaning rod 5, compressed air in cleaning rod 5 is under the inside and outside differential pressure effect, form bubble by the pore 14 on cleaning rod 5, produce vibration, bubble directly impacts the detection probe of testing fixture and the pollution face of centralising device, can effectively clean the pollutant of these component surfaces, reduce the radioactive dosage of testing fixture.
Nuclear reactor control cluster component inspection device cleaning means of the present invention carries out its structure also can be used for cleaning other similar nuclear island equipment inspection device after accommodation.
Claims (8)
1. nuclear reactor control cluster component inspection device cleaning means, it is characterized in that: this instrument comprises source of the gas (1), stop valve (2), pressure regulator valve (3), some cleaning rods (5), connection handle (6), some tracheaes (7), connecting plate (8) and two disembarkation gas-tpe fittings (9); Described connecting plate (8) is the rectangular enclosure structure, be evenly equipped with several holes on the one side, each Kong Junyu rectangular enclosure connects, be symmetrically installed with two disembarkation gas-tpe fittings (9) on its another side, disembarkation gas-tpe fitting (9) connects with the rectangular enclosure of connecting plate (8); Described cleaning rod (5) is the cylindrical cavity structure, is evenly equipped with several pores (14) on cleaning rod (5); Described connection handle (6) is the rectangular plate shape structure, is evenly equipped with several through holes on it, and is corresponding with the hole on connecting plate (8); Some cleaning rods (5) accumulate the cleaning rod group by connection handle (6), and insert in a through hole of connection handle (6) upper end of every cleaning rod (5), and the upper end of cleaning rod (5) and connection handle (6) are connected and fixed; The upper end of every cleaning rod (5) upward is connected in corresponding hole by tracheae (7) and connecting plate (8); Described source of the gas (1) is connected with two disembarkation gas-tpe fittings (9) respectively by pipeline, is disposed with stop valve (2) and pressure regulator valve (3) on the pipeline between source of the gas (1) and two disembarkation gas-tpe fittings (9).
2. nuclear reactor control cluster component inspection device cleaning means according to claim 1, it is characterized in that: described cleaning rod (5) is formed by connecting by lower end (11), barred body (12) and upper end (13) from bottom to up successively; Be evenly equipped with several pores (14) on described barred body (12); Described upper end (13) inserts in a through hole of connection handle (6), and upper end (13) is connected and fixed with connection handle (6); Described upper end (13) upward is connected in corresponding hole by tracheae (7) and connecting plate (8).
3. nuclear reactor control cluster component inspection device cleaning means according to claim 2, it is characterized in that: the two ends of described tracheae (7), and tracheae (7) is respectively arranged with gas-tpe fitting (4) with the upper end (13) of cleaning rod (5), the junction, hole of connecting plate (8).
4. nuclear reactor control cluster component inspection device cleaning means according to claim 2 is characterized in that: described lower end (11) be shaped as bullet-shaped.
5. nuclear reactor control cluster component inspection device cleaning means according to claim 2, it is characterized in that: described upper end (13) is connected and fixed by screw thread and connection handle (6).
6. nuclear reactor control cluster component inspection device cleaning means according to claim 1, is characterized in that: be provided with " one becomes a two " gas-separating valve on the pipeline between described source of the gas (1) and two disembarkation gas-tpe fittings (9); Described gas-separating valve will be divided into two-way and be connected with two disembarkation gas-tpe fittings (9) respectively by the pipeline that draw source of the gas (1); Be disposed with stop valve (2) and pressure regulator valve (3) on pipeline between described source of the gas (1) and gas-separating valve.
7. nuclear reactor control cluster component inspection device cleaning means according to claim 1, it is characterized in that: the diameter of described cleaning rod (5) is less than the diameter of control rod.
8. nuclear reactor control cluster component inspection device cleaning means according to claim 1, it is characterized in that: the center that described connecting plate (8) is equipped with the side of disembarkation gas-tpe fitting (9) is equipped with connector (10), its structure and outside lifting device coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429479.7A CN103157627B (en) | 2011-12-19 | 2011-12-19 | Cleaning tool for detection device for nuclear reactor rod cluster control assembly (RCCA) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429479.7A CN103157627B (en) | 2011-12-19 | 2011-12-19 | Cleaning tool for detection device for nuclear reactor rod cluster control assembly (RCCA) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103157627A true CN103157627A (en) | 2013-06-19 |
| CN103157627B CN103157627B (en) | 2015-03-04 |
Family
ID=48581457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110429479.7A Active CN103157627B (en) | 2011-12-19 | 2011-12-19 | Cleaning tool for detection device for nuclear reactor rod cluster control assembly (RCCA) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103157627B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229025A (en) * | 2016-07-29 | 2016-12-14 | 中广核检测技术有限公司 | Nuclear reactor control cluster assembly inservice inspection device decontamination instrument |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB169576A (en) * | 1920-07-28 | 1921-10-06 | Ernest Sherwood Rogers | Improvements relating to the pipes of beer pumps and the like |
| US3120326A (en) * | 1960-08-26 | 1964-02-04 | Robert M Hedeman | Beverage dispenser conduit purging device |
| DE1963075A1 (en) * | 1969-06-12 | 1970-12-23 | Aves Donald J | Circulation cleaning device for vacuum systems |
| EP0026649A2 (en) * | 1979-09-26 | 1981-04-08 | Sperry Corporation | Digital information transfer system and interface |
| CN201082426Y (en) * | 2007-09-25 | 2008-07-09 | 山东新华医疗器械股份有限公司 | Fast assembled type cleaning apparatus |
| CN202398575U (en) * | 2011-12-19 | 2012-08-29 | 核动力运行研究所 | Cleaning tool for examining device for nuclear reactor rod cluster control assembly |
-
2011
- 2011-12-19 CN CN201110429479.7A patent/CN103157627B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB169576A (en) * | 1920-07-28 | 1921-10-06 | Ernest Sherwood Rogers | Improvements relating to the pipes of beer pumps and the like |
| US3120326A (en) * | 1960-08-26 | 1964-02-04 | Robert M Hedeman | Beverage dispenser conduit purging device |
| DE1963075A1 (en) * | 1969-06-12 | 1970-12-23 | Aves Donald J | Circulation cleaning device for vacuum systems |
| EP0026649A2 (en) * | 1979-09-26 | 1981-04-08 | Sperry Corporation | Digital information transfer system and interface |
| CN201082426Y (en) * | 2007-09-25 | 2008-07-09 | 山东新华医疗器械股份有限公司 | Fast assembled type cleaning apparatus |
| CN202398575U (en) * | 2011-12-19 | 2012-08-29 | 核动力运行研究所 | Cleaning tool for examining device for nuclear reactor rod cluster control assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229025A (en) * | 2016-07-29 | 2016-12-14 | 中广核检测技术有限公司 | Nuclear reactor control cluster assembly inservice inspection device decontamination instrument |
| CN106229025B (en) * | 2016-07-29 | 2018-04-10 | 中广核检测技术有限公司 | Nuclear reactor control cluster component inservice inspection device decontamination instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103157627B (en) | 2015-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9460820B2 (en) | Radiation shielding method and device, and method of processing structure | |
| US20040025696A1 (en) | Liquid degassing system for power plant system layup | |
| CN103551341B (en) | Underwater foreign matter fishing device | |
| CN211097961U (en) | Air filter element cleaning device for diesel engine | |
| EP3100276A1 (en) | Apparatus and method to remotely inspect piping and piping attachment welds | |
| CN114334200B (en) | System for detecting fuel ball integrity under high-temperature gas cooled reactor running state | |
| CN103157627B (en) | Cleaning tool for detection device for nuclear reactor rod cluster control assembly (RCCA) | |
| CN202398575U (en) | Cleaning tool for examining device for nuclear reactor rod cluster control assembly | |
| CN203720153U (en) | Water collecting and circulating system of ultrasonic testing of vertical pipeline | |
| EP2940695B1 (en) | Systems for reducing surface deposition and contamination | |
| CN101710495B (en) | Installation structure of spent fuel storage pool in PTR system | |
| CN105702311A (en) | An ultrasonic decontamination system for radioactive work pieces of nuclear plants | |
| CN204496942U (en) | A kind of nuclear power plant radioactivity workpiece supersonic wave decontamination system | |
| CN103871516B (en) | A kind of reactor pressure vessel adapter ultrasonic examination instrument lifting operational approach | |
| CN209607423U (en) | The partially sealed property of nuclear power unit containment tests integrated system | |
| CN106229025B (en) | Nuclear reactor control cluster component inservice inspection device decontamination instrument | |
| CN110026000B (en) | Back-flushing device and back-flushing method for closed circulation system of nuclear power plant | |
| CN219778539U (en) | On-line decontamination device for radioactive pipeline | |
| CN101789273B (en) | Fuel visual observation device for pebble-bed high-temperature reactor | |
| JP6446370B2 (en) | System and method for disposing of one or more radioactive parts from a nuclear power plant reactor | |
| CN203397718U (en) | Mobile device used for retaining radioactive hot spots of nuclear power station | |
| CN205002975U (en) | Steam generator blowdown test device | |
| CN202988788U (en) | Modular-type catalytic hydrogenation deoxidization device for nuclear power station | |
| US6466636B1 (en) | Decontamination method | |
| CN216997921U (en) | Chemical industry waste water tubular membrane preprocessing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |