Burial site for nuclear submarine
(57) Abstract:The invention relates to ecology and marine engineering. The inventive burial site for nuclear submarine made in the form of a waterproof shell surrounding a nuclear submarine with a gap between them filled with hardening mixture, such as concrete. The shell is made of exterior cladding and part of the old set, intended to scrap the vessel, in the form of a continuous closed ring, stretched, open at the top and bottom and reinforced edges. The internal volume of the shell 1.5 - 3.5 times the volumetric displacement of a nuclear submarine. The top ring is rigidly attached add-in, open top and bottom for cutting nuclear submarine . 8 Il. The invention relates to ecology and marine applications.When creating it is used for materials, published in the books: Kondratyev A. M. "Mysteries of the Great ocean, Gidrometeoizdat L. 1974, S. 53-54 and Became S. P. "traces of submarine disasters, M. Guild of masters "Rus", 1992, S. 54-108, as well as in the newspaper "St. Petersburg Vedomosti" on 12.03.93, "Raise, or we bury", from 03.04.93, "Through the water column through the thickness of the facts", 1 is t decisions on their fate at the bottom of the sea "Nezavisimaya Gazeta" on 15.05.92.Of these materials, it follows that at the present time at the bottom of the oceans in different geographical locations and at different depths are nuclear submarines, the flooding which occurred in peacetime disaster. The sunken submarine is exceeded in the terrible ecological time bomb with indefinite operation, when it is the result of corrosion of the hull and reactor or ammunition will begin to infect the radioactive products of ocean water.Known case of a successful disposal of a large nuclear facility is the burial ground of the fourth block Chernobelsky NPP, the so-called "Sarcophagus", which annular wall of concrete slabs, built around a block with a nuclear reactor, the internal space between which and the emergency unit of the NPP is filled with a concrete mass. To create such a "Sarcophagus" type Chernobelsky NPP under water at great depths, it is impossible or extremely expensive.The burial ground for the sunken submarine, proposed in the article "Nuclear "Komsomolets", waiting for decisions on their fate at the bottom of the sea "Nezavisimaya Gazeta" on 15.05.92, taken as the closest analogue. This source of information proposed disposal is expensive and not reliable.To reduce cost and increase reliability of the sarcophagus burial ground for submarines, the proposed outer membrane of the burial ground be run from the shell plating and side of the hull of the old, destined for scrapping the vessel in the form of a continuous closed ring, stretched, open at the top and bottom and reinforced edges. Internal object eat the shell 1.5-3.5 times more than lending displacement of the sunken submarine. The top ring is rigidly attached add-in, open at the top and bottom to place the cuttings submarines. Immured in the boneyard APL is left on the ground for permanent storage.In Fig. 1 shows a submarine lying on the ground; Fig. 2, 3 and 4, the shell cemetery (three projections) made in this case from the case of a vessel destined for scrapping; Fig.5-towing shell to place the flooding of the submarine of Fig.6 lower shell to the submarine of Fig.7 filling the shell of solidified mixture; Fig.8 submarines, immured in the shell.The sunken nuclear submarine 1 cabin 2 lies on the ground 3 (Fig.1) on an even keel. The thickness "a" of Fig.1 shows the projection of the shell on the ground 3. Shell cemetery 4 made in the form of elongated horizontally continuous closed ring, supported by the IPMS shall serve for fixing the submarine inside the shell with a gap "b". The shell is made open at the top and bottom, so it can be worn on submarines. The top shell has an add-9 to place cuttings 2, and in the bottom 10 made hole "c" contour 11, covering the projection of the EPL-1.In the upper part of the casing instead of the deck can be left of the platforms and tracks 12 for fastening the lifting Obukhov 13 and 14 (Fig. 3 and 6) and the passage of personnel in preparation for the staging repository.Operations for the disposal of nuclear submarines and manufacture of the shell of the casing and part of the hull, designed to be disassembled for scrap vessel, the displacement of which is 1.5-3.5 times the displacement of the sunken submarine, is produced as follows.After establishing the fact of death of the submarine, its hydroacoustic detection means and the decision about the disposal of the work in accordance with the invention.First, using hydro-acoustics, surveillance cameras, and deep-diving vehicles examined the position of the sunken nuclear submarine on the ground, determine the integrity of the case, course, pitch and roll, including drawings of submarines define projection "a" of her body on the ground. Choose from among the old ones, destined for scrap vessels, vessel, vaudoises the s and all add-ons, in addition to the average. From the upper deck can be left for the passage only of the track 12 on the sides and in the middle of the superstructure 9, and the add-in, if necessary, move forward or backward along the length of the casing 4 in order to accommodate the cabin 2 of the EPL. Leave for rigidity plating 4 frames 5, part stringers 6, the lower decks and platforms 7 and outer parts of the transverse bulkheads 8 for fixing the casing of the submarine in the middle part of the shell with a gap "b" between the hull of the submarine and the cladding 4. Remove the main machine, auxiliary mechanisms and their foundations. Clean the inside of the bottom 10 without altering its geometry.In the fore and aft parts of the shell, on the track 12 install eyebolts are installed 13 and 14 for hanging to rescue the vessel 15. Attach to the sides of the shell 4 s roadways pontoons 16 to impart positive buoyancy. Shell with pontoons provide a deeper place and cut out in the bottom 10 hole "c" contour 11, covering the projection "a" of the submarine with its passage into the shell when lowering on top of the submarine.After this rescue vessel 15 tows shell 4 to the place of sinking submarines and stops on it. Shell perestrelyayut with tug 17 running on the ends of the cables 18 and 19 l the to cabin 2 has entered the add-9 and stack the shell 4 on the ground 3 and the body of the submarine. Give the running ends of the cables 18 and 19 form the shell 4 on the ground 3. Return cables perform acoustic isolators. The vessel 15 is purchasing the appropriate mixture, hardening with time, and with the help of buckets 23 with an opening bottom 24 fill the shell 4 and superstructure 9 this mixture 25. The EPL is isolated on all sides by a mixture of 25, the shell 4 and the walls of the superstructure 9 from the surrounding aqueous medium, the mixture hardens and the submarine is trapped on the ground forever. Radioactive contamination of the aquatic environment cannot occur.When the execution of the described work is required to stabilize the position of the vessel 15 over the sunken submarine. To ensure this, it is advisable to use sonar and/or radiometric measuring distances and bearings and mechanisms of dynamic retention vessel 15 at a given point, and to monitor and adjust when filling the shell 4 concrete mix 25 - Supervisory camera, and deep-sea submersibles.Examples of application of such tools is provided in the books listed at the beginning of the description of the request.Offered by us is of simple design, reliable, made the practical as submerged submarines are in different places of the World ocean, mainly in international waters, and pose environmental threat to all mankind, it is reasonable rapid elimination of the threat of radioactive contamination of the ocean it is through the proposed repository. Burial site for nuclear submarine, containing waterproof sheath surrounding a nuclear submarine with a gap between them filled with hardening mixture, such as concrete, characterized in that the shell is made of exterior cladding and part of the hull of the old, destined for scrap vessel, in the form of a continuous closed ring, stretched, open at the top and bottom and reinforced edges, while the internal volume of the shell 1.5 to 3.5 times the volumetric displacement of the sunken nuclear submarine, and the top ring is rigidly attached add-in, open at the top and bottom to place the cuttings nuclear submarine.
FIELD: safety facilities for handling radioactive materials.
SUBSTANCE: proposed internal container designed for long-time storage and transport of high-radioactivity materials such as plutonium dioxide has container body closed with sealed cover and specified-volume charging box placed in this body and provided with its respective cover. Container body has cylindrical passage for charging box that mounts additional internal cover provided with gas filtering device and hermetically installed relative to its surface for axial displacement. External cover of container body is provided with shut-off valve accommodating gas filtering device installed therein between inner space of container and valve seat. Such mechanical design of container enables reducing irreparable loss of plutonium during its long-time storage and transport.
EFFECT: enhanced safety and reliability , enlarged functional capabilities of container.
7 cl, 2 dwg
FIELD: handling radioactive wastes.
SUBSTANCE: proposed method for nuclear fuel storage in container includes introduction of nuclear fuel in fuel collector, as well as preparation of formwork to receive concrete body and installation of fuel collector into formwork. Formwork is immersed in tank and concrete is placed in immersed formwork to form concrete housing. Formwork with concrete housing formed therein is extracted from tank. System for manufacturing nuclear fuel storage container and for holding fuel in fuel collector installed in concrete housing that forms part of storage container has water tank. In addition it has tools for assembling formwork for storage container concrete housing and facilities for conveying formwork and fuel collector to water tank. It also has facilities for introducing nuclear fuel in fuel collector, facilities for concrete placement in formwork, and those for removing formwork from water tank. Nuclear fuel storage method includes piling of containers so that their central channels are aligned and held open for intercommunication. Fluid cooling agent is supplied to bottom end of central channel in lowermost storage container and discharged from top end of central channel in uppermost storage container.
EFFECT: enhanced reliability of radioactive waste isolation.
25 cl, 7 dwg
FIELD: storage of hazardous materials.
SUBSTANCE: proposed device for keeping in storage hazardous materials such as spent radioactive nuclear fuel has cylindrical concrete housing accommodating three-dimensional pre-stressed hardware and axially elongated hazardous-material storage area. Pre-stressed hardware includes hardware fittings spirally passed about storage area and disposed in concrete housing close to outer surface.
EFFECT: enhanced reliability of hazardous material storage.
7 cl, 8 dwg
FIELD: shipment and storage of highly active wastes.
SUBSTANCE: proposed container for transport and dry storage of spent nuclear fuel has hermetically sealed storage tank and can holding spent nuclear fuel. In addition, it has external steel-reinforced concrete casing with outer and inner metal shells and bottom, cooling ducts, and fixing dampers. Hermetically sealed tank is provided with transport ring that holds shell in position relative to longitudinal axis of casing and with three detachable lids. It is also provided with dampers disposed over entire perimeter of inner cylindrical shell that function to lock cylindrical shell on lid and outer steel-reinforced concrete casing and to transfer heat therefrom. Cooling system is designed so that cooling air flows through cylindrical gap between outer surface of tank and inner surface of external steel-reinforced concrete casing over cooling ducts.
EFFECT: enhanced operating reliability of container.
5 cl, 4 dwg
FIELD: handling spent nuclear fuel.
SUBSTANCE: proposed module designed for storage of spent nuclear fuel has tight case with inner space to receive spent nuclear fuel. Module is provided with ring made of solid ferromagnetic material possessing magnetocaloric properties. Ring is provided with drive and is free to rotate about its axis. It is disposed so that part of this ring is inside module in immediate proximity of tight tank holding spent nuclear fuel. Other part of ring is placed in constant magnetic field outside of module and can be cooled.
EFFECT: enhanced safety of spent nuclear fuel dry storage.
1 cl, 2 dwg
FIELD: nuclear engineering.
SUBSTANCE: proposed device for storage and/or transport of spent nuclear fuel has housing and cover forming inner space for holding spent nuclear fuel. Inner space is divided by means of partitions into compartments, each compartment being meant to receive spent fuel assembly. Each compartment accommodates two tanks holding metal hydride or intermetallic compound. These tanks are provided with channels pressurized with respect to inner space of device which are used to discharge hydrogen produced due to heat released by fuel assembly. Hydrogen outlet channels are designed for charging metal hydride through them and are provided with closing valves.
EFFECT: enhanced reliability of spent nuclear fuel storage and its safety in transit.
1 cl, 3 dwg
FIELD: transport and storage of spent nuclear fuel.
SUBSTANCE: proposed method includes placement of fuel assemblies in transport package incorporating container and split damping casing designed so as to minimize lift of container when inserting it in split damping casing. Transport package is conveyed to storage place where container is freed of casing, whereupon spent fuel assemblies are kept in storage place. In the process spent fuel assemblies are first placed in container and then the latter is inserted in vertical position into split damping casing made in the form of removable drum with butt-end covering and base that functions as end lid of this drum. Charged container is installed on base, covered on top with removable drum, and the latter is fastened to base. Then split damping casing is secured to container, whereupon transport package is conveyed in transport position to storage place.
EFFECT: enhanced reliability of storage and transportation.
6 cl, 5 dwg