JPS56168961A - Method and device for underwater arc cutting in nuclear reactor - Google Patents
Method and device for underwater arc cutting in nuclear reactorInfo
- Publication number
- JPS56168961A JPS56168961A JP7168880A JP7168880A JPS56168961A JP S56168961 A JPS56168961 A JP S56168961A JP 7168880 A JP7168880 A JP 7168880A JP 7168880 A JP7168880 A JP 7168880A JP S56168961 A JPS56168961 A JP S56168961A
- Authority
- JP
- Japan
- Prior art keywords
- water
- gas
- cutting
- fed
- cut
- 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
Landscapes
- Arc Welding In General (AREA)
Abstract
PURPOSE: To prevent gas from assuming radioactivity and escaping to the atmosphere at the time of under water cutting having radioactivity by capturing the decomposed gas of the water produced during consumable electrode type arc cutting which feeds only the injection water of a minimum amount of gas formation, burning the same and returning it into the water in the reactor.
CONSTITUTION: In order to cut a material M to be cut in the water W in a nuclear reactor pressure vessel V, a wire is fed from a device 17 to the torch 14 of a consumable electrode type arc cutter 1, and jet water is fed by a pump 19. At this time, no shielding gas is fed. Then, the arc is produced between the member M and the end part of a wire, the part melted by the heat thereof is blown off by the jet water, and the member M is propressively cut by the advancing of a traveler 12 and the moving of the jet water. During the cutting, the water is decomposed by the arc heat to produce H2 and O2, and bubbles G ascend. These are captured by a gas capturing part 2, and the accumulated gas is successively ignited and burned by the nozzle above the water of a condensate part 3. The produced water is cooled by being prevented from escaping to the atmosphere by the enclosing wall of a return water part 4, flows down and returns into the water.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7168880A JPS56168961A (en) | 1980-05-29 | 1980-05-29 | Method and device for underwater arc cutting in nuclear reactor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7168880A JPS56168961A (en) | 1980-05-29 | 1980-05-29 | Method and device for underwater arc cutting in nuclear reactor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56168961A true JPS56168961A (en) | 1981-12-25 |
JPS5754230B2 JPS5754230B2 (en) | 1982-11-17 |
Family
ID=13467736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7168880A Granted JPS56168961A (en) | 1980-05-29 | 1980-05-29 | Method and device for underwater arc cutting in nuclear reactor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56168961A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58173081A (en) * | 1982-04-05 | 1983-10-11 | Hitachi Ltd | Method for feeding electrode wire for consumable electrode type water jet cutting |
JPS58156689U (en) * | 1982-04-16 | 1983-10-19 | 三菱化成ポリテック株式会社 | Emergency drinking water storage tank |
JPS59162495A (en) * | 1983-03-07 | 1984-09-13 | 株式会社日立製作所 | Cutting device for high level radioactive solid waste |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5257048A (en) * | 1975-11-07 | 1977-05-11 | Mitsubishi Heavy Ind Ltd | Underwater welding torch |
-
1980
- 1980-05-29 JP JP7168880A patent/JPS56168961A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5257048A (en) * | 1975-11-07 | 1977-05-11 | Mitsubishi Heavy Ind Ltd | Underwater welding torch |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58173081A (en) * | 1982-04-05 | 1983-10-11 | Hitachi Ltd | Method for feeding electrode wire for consumable electrode type water jet cutting |
JPS58156689U (en) * | 1982-04-16 | 1983-10-19 | 三菱化成ポリテック株式会社 | Emergency drinking water storage tank |
JPS59162495A (en) * | 1983-03-07 | 1984-09-13 | 株式会社日立製作所 | Cutting device for high level radioactive solid waste |
Also Published As
Publication number | Publication date |
---|---|
JPS5754230B2 (en) | 1982-11-17 |
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