DE1100192B - Connection of an atomic nuclear reactor with a movable overall object - Google Patents

Description

GERMAN

Connection of an atomic nuclear reactor with a movable overall object

Applicant:

COMMISSARIAT a l'Energie Atomique, Paris

Representative: Dipl.-Ing. R. Beetz, patent attorney,
Munich 22, Steinsdorfstr. 10

Claimed priority:
France, August 27, 1958

Claude Robert, Neuilly-sur-Seine,

and Jean Tillequin, Paris (France),

have been named as inventors

The invention relates to a connection of an atomic nuclear reactor, the core in a thick-walled Container is arranged with the supporting structure one delivered by the reactor Energy to be driven, movable overall object, in particular a ship.

Among the technical applications of nuclear energy, which in atomic reactors are different Type of construction is generated, the propulsion of ships, airplanes, rockets and the like wins independently moveable objects of considerable importance. Among the movable objects of this type are the Ships have a preferred place because shipping has the most favorable conditions for the application of Provides nuclear reactors for propulsion purposes, in particular with regard to the training of radiation protection for the personnel and the dimensions of the reactor plant. A nuclear power drive with a high specific power is also suitable for missiles or aircraft.

But now 20 occur on ships and airplanes
very disturbing influences on the movements
the sea surface or the air masses surrounding a ship or aircraft. η These water and air movements do not generate

only vibrations or rolling movements of the ships 25 The invention is based on the object of this or aircraft transversely to the vertical, but also disadvantages of the known compounds of an atomic larger accelerated and decelerated movements in reactors or nuclear reactor vessel with a through Direction of the vertical and thus changes in the nuclear energy to be driven or moved, apparent gravity. in turn freely movable, accelerations under-

These disruptive influences are to be avoided in the case of nuclear reactors 30 thrown overall object, particularly uncomfortable in ships and airplanes, the connection of a nuclear reactor with the Tragweil it has a significant impact on the reactivity and construction of the object to be driven .Stability of the operation of the reactors act according to the characterized in that the core and also to the occurrence of greater forces in the outlet of the reactor against the container via a first Support members between the reactor and the support 35 group supported by radially directed rockers lead the construction of the ship or aircraft. is, the upper ends of which are hinged to the reactor core

It has already been proposed to reduce the influence of these forces. Center of mass the reactor and the heavy shield as close as possible to the roll center of the ship relocate. However, this has the disadvantage that only the influence of the rolling movements is reduced and that the reactor can only be installed in a limited area of the ship,

are attached and the lower ends of which are hinged to the container in some of the rockers, in others are so elastically connected to the container that when the core moves against the Container provide restoring forces, and that the container in turn has a second group of radially directed swing is supported against the supporting structure of the entire moving object, the upper ends of which are hinged to the container and the lower ends of which are attached to some of the wings hinged to the supporting structure, with others so elastically connected to the supporting structure are that when the container moves against the

to meet this condition.

In a known support device, the reactor is inserted into deeply cut-out frames, which Transferring weight to the hull. This has the disadvantage that the pressure vessel in which

the reactor core is located, its weight on the supporting structure. Provide backward forces, and that the must take. In addition, a second group of wings in the extension act on the reactor all acceleration forces that lie from the motion swing of the first group, The ship's movements originate from and influence the

Operating condition of the reactor. previously mentioned disadvantages of the known arrangement

109 527/470

3 4

gene avoided, but there are also deflected by, which are rigidly connected to the vessel 6.

Heat generated forces are reduced. The purpose of the weight of the vessel 6 is to maintain the pressure of the cooling

The reactor is immediately transferred to the outside to receive the medium; it also serves as a thermal

and the dangers of deformation of the vessel are mixer protective jacket. In Fig. 1, the lower

avoided. You can preferably have an even number 5 part of the vessel 6, in which bushings for the

of vibrations in each group and provided in the circulation of the cooling medium, only

shown on the inner and outer circumference of the vessel with dash-dotted lines. Also the

arranged swing rings each a simple additional, in the sense of the invention not inter-

Swivel arm with an elastic return arm eating facilities of the reactor are not

arrange them alternately. io drawn.

It should be noted that the system according to the invention are some of the

Swing arm mounting according to the invention is also not mounted in the swing arm 3 in joints 5, but in the

Is the position between the reactor and its vessel in contrast to this (as can be seen from Fig. 2)

on the one hand and between the container and the carrying are their pivoting rods designed as straight bars

the structure or the skeleton of the ship or 15 axes 8 - for example by welding -

of the aircraft, on the other hand, differences that occur directly with the corresponding

to be included in the expansions. gen 3 and on the other hand via special spacers

In addition, the paired arrangement such as 9 and 10 results in a fixed connection to the vessel 6. on

of the swing, in which the inner and outer swing form the pivot axes 8 torsion

each in the extensions of the other Schwin- 20 rods, which due to their torsion spring effect the

attack gene on the vessel, bring back a limitation of the mass of the reactor core tail 1,

otherwise possible high local stresses caused by movements of the entire ship

Vessel, which by taking up the weight of the reactor causes greater accelerations or decelerations

tes are conditional, and it is known that one drives afterwards and is deflected in relation to the vessel 6,

strives to avoid stresses that are not absolutely necessary 25.

from. keep away from this vessel, as it is connected to the inner structure of the ship via wings 11,

Should withstand overpressure of the cooling medium. resting on an annular support plate 12

By elastically fixing a certain amount of support. In the same way, as already told above about inner and outer supporting swing arms, these swing arms 11 are on the one hand the entire vessel of the reactor, which are preferably on torsion 30 lent in joints' 18 to the container 6, namely on in rods takes place, one achieves that the mass of the reac- radial direction extending outer plate gate in each case returned to their relative rest position mounts 14, articulated. On the other hand, only a given number of rockers 11 is supported by different movements in the joints 15 of the entire object (for example by rolling and radial pitching movements of the ship that are rigidly connected to the support plate 12) from this rest position 35,
has been moved out. The other rockers 11 are according to the invention

To explain the invention in more detail, manure is now elastically connected to the plate 12 by

an embodiment of the invention described, their axes 17 - for example by welding -

which is shown in the drawing and the training on the one hand with the corresponding rocker 11 and

formation of the connection of a nuclear reactor or a 40 on the other hand via special intermediate pieces 18 and 19

Nuclear reactor vessel with a rigidly connected to the plate 12 by nuclear energy. To this

Torsion bars are also formed here, which are driving, independently movable overall object

shows according to the invention. the mass of the container 6 and the reactor core 1

The described in connection with the drawing, if as a result of the movements of the above execution details of this execution ^ - 45 ship deflections have occurred,
examples are to be considered as parts of the present invention. In a practical construction according to the invention, it goes without saying that in all of the invention the core of the reactor has a diameter equivalent measures can be applied, of 3.5 m and a height of 3.5 m. It weighs some without going beyond the scope of the invention. In 1001 and is connected to the vessel over sixteen radial of the drawing represent: 50 rockers made of forged steel. By doing

Fig. 1 is a view - partially vertically cut swing ring - each alternating - eight

ten - by a nuclear reactor vessel, which according to the articulated swing and eight elastic

Invention is connected to a ship, with their lower ends attached to the vessel

Fig. 2 and 3 horizontal sections arranged along the cutting rocker. The cylindrical vessel has

lines II-II and III-III of Fig. 1; these figures show a diameter of the order of 5 m

more details of the swing arm mountings, and is made of sheet steel 10 cm thick,

which act as torsion bars. E ₅ attention is drawn to the fact that the

In the figures, only the radial brackets 7 and 14, which are in the form of an understanding and which are attached to the

the invention necessary parts shown, each other vessel 6 are set and where the inner and

Corresponding parts are articulated or fastened in the different Fi- 60 outer rockers 3 and 11

gures have been given the same reference numerals. are, in each case in pairs in their mutual relationship

Fig. 1 shows the active core 1 of an atomic elongation are arranged in order to

reactor of cylindrical shape with vertical axis. borne weight of the reactor-related supporting forces and

This active part 1 rests on a metal support plate 2, to lead indirectly to the support plate 12 and on

the high, locally limited as far as possible, according to the invention by swinging 3

is based. The rockers are in joints 4 with the stresses on the wall of the vessel 6 in the area

Core 1 connected. Avoid a certain number of these supports.

Swings are also strong in joints 5 on which- As a result, the number of outer swings is

walled reactor vessel 6, namely on special, gen 11 also sixteen, of which eight are on both sides

radially arranged metal plate holders 7 articulated and eight others only articulated on one side and

at the other end elastically fixed to the vessel 6 via torsion axes made of silicon-manganese steel are.

In the construction described as an exemplary embodiment, radial expansions in the order of magnitude of 10 mm and the effects of vertical accelerations with an order of magnitude of ¹ Za g are also recorded, which represents a maximum acceleration limit for stormy seas.

10

Claims (2)

Patent claims: 1. Connection of an atomic nuclear reactor, the core of which is arranged in a thick-walled container is, with the supporting structure of a movable to be driven by the energy supplied by the reactor Entire object, in particular a ship, characterized in that the core of the reactor is supported against the container via a first group of radially directed rockers, whose upper ends are hinged to the reactor core and their lower ends at some the rocker is hinged to the container, in others it is so elastically connected to the container are that they provide restoring forces when the core moves against the container, and that the container in turn has a second group of radially directed rockers: against the supporting structure of the movable overall object is supported, the upper ends of which, on which Container are articulated and the lower ends of some of the rockers on the support structure hinged, in others so elastically connected to the support structure, are that they deliver restoring forces when the container moves against the supporting structure, and that the second group of wings is in line with the wings of the first group. 2. A compound according to claim 1, characterized in that an even number of wings is provided in each group and in those arranged on the inner and outer periphery of the vessel Swing arm rings each have a simple articulated swing arm with an elastic return swing arm alternates. Considered publications:
"Engineering", October 1957, pp. 444 to 446;
"Nuclear Power", January 1958, pp. 11 to 16. 1 sheet of drawings © 109 527/470 2.61