FR2347750A1 - Gastight closure esp. for access to clean conditions zones - has flexible band with hole for reeling across vessel opening - Google Patents
Gastight closure esp. for access to clean conditions zones - has flexible band with hole for reeling across vessel openingInfo
- Publication number
- FR2347750A1 FR2347750A1 FR7710248A FR7710248A FR2347750A1 FR 2347750 A1 FR2347750 A1 FR 2347750A1 FR 7710248 A FR7710248 A FR 7710248A FR 7710248 A FR7710248 A FR 7710248A FR 2347750 A1 FR2347750 A1 FR 2347750A1
- Authority
- FR
- France
- Prior art keywords
- opening
- esp
- access
- aperture
- band
- 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
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/20—Arrangements for introducing objects into the pressure vessel; Arrangements for handling objects within the pressure vessel; Arrangements for removing objects from the pressure vessel
- G21C19/22—Arrangements for obtaining access to the interior of a pressure vessel whilst the reactor is operating
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
- G21C13/028—Seals, e.g. for pressure vessels or containment vessels
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
- G21C13/06—Sealing-plugs
- G21C13/073—Closures for reactor-vessels, e.g. rotatable
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/20—Arrangements for introducing objects into the pressure vessel; Arrangements for handling objects within the pressure vessel; Arrangements for removing objects from the pressure vessel
- G21C19/207—Assembling, maintenance or repair of reactor components
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
- Measurement Of Radiation (AREA)
Abstract
Gas tight closure intended for openings of large dia. In a nuclear installation, where the opening must frequently be opened and closed, comprises a flexible band of width exceeding the opening dia. reeled/unreeled between two parallel rollers; the rollers are mounted on opposite sides of a frame which has a central aperture between them; the frame is mounted over the opening or penetration in the vessel etc., so that this aperture is generally central to the opening in the vessel. The band contains an aperture or several successive apertures of different sizes, which are moved to the central position to form an access hole. The band is sealed at the edges by flexible strips. Used for frequent access, esp. to clean conditions areas, e.g. during the installation and removal of components in the protective gas region of a liquid metal cooled reactor.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2615175A DE2615175C2 (en) | 1976-04-08 | 1976-04-08 | Gas- and radiation-tight closure |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2347750A1 true FR2347750A1 (en) | 1977-11-04 |
FR2347750B1 FR2347750B1 (en) | 1982-08-13 |
Family
ID=5974750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7710248A Granted FR2347750A1 (en) | 1976-04-08 | 1977-04-05 | Gastight closure esp. for access to clean conditions zones - has flexible band with hole for reeling across vessel opening |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2615175C2 (en) |
FR (1) | FR2347750A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2538152A1 (en) * | 1982-12-20 | 1984-06-22 | Mitsubishi Heavy Ind Ltd | Leakproof closure head for nuclear reactor containments |
EP0169724A2 (en) * | 1984-07-26 | 1986-01-29 | Westinghouse Electric Corporation | Containment hatch integral shield for a nuclear reactor containment |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2330220A (en) * | 1940-09-17 | 1943-09-28 | Maxwell F Kemper | Gate closure |
FR2059937A1 (en) * | 1969-03-10 | 1971-06-11 | Commissariat Energie Atomique | |
CH541210A (en) * | 1969-03-10 | 1973-08-31 | Commissariat Energie Atomique | Sliding tape seal for transfer deivce |
-
1976
- 1976-04-08 DE DE2615175A patent/DE2615175C2/en not_active Expired
-
1977
- 1977-04-05 FR FR7710248A patent/FR2347750A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2538152A1 (en) * | 1982-12-20 | 1984-06-22 | Mitsubishi Heavy Ind Ltd | Leakproof closure head for nuclear reactor containments |
EP0169724A2 (en) * | 1984-07-26 | 1986-01-29 | Westinghouse Electric Corporation | Containment hatch integral shield for a nuclear reactor containment |
EP0169724A3 (en) * | 1984-07-26 | 1987-10-07 | Westinghouse Electric Corporation | Containment hatch integral shield for a nuclear reactor containment |
Also Published As
Publication number | Publication date |
---|---|
DE2615175C2 (en) | 1984-10-04 |
FR2347750B1 (en) | 1982-08-13 |
DE2615175A1 (en) | 1977-10-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |