Patent Number: 046722130
Section: summary

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a container, especially for radioactive substances such as radioactive liquids, with an inner container for receiving the substances, an outer container which contains the inner container and thermal insulation between the inner and the outer container. 2. Description of the Prior Art Such a container is already in use. The thermal insulation between the inner and the outer container consists, for instance, of phenolic resin foam. The purpose of the foam insulation, in the event of a fire, is to prevent heat from the outside from entering into the inner container to cause a sudden rise in the pressure in the inner container, which may ultimately result in the bursting of this inner container and the escape of the radioactive substances. The thermal insulation between the inner and the outer container, however, prevents the escape of decay heat of the radioactive substances to the outside. The capacity of this container is very limited since in the course of time, with output of decay heat, a heat accumulation could occur which would lead to excessive high pressure in the inner container. SUMMARY OF THE INVENTION An object of the invention is to provide a container which is not limited in capacity with respect to radioactive substances or at least has increased capacity in this regard. With the foregoing and other objects in view, there is provided in accordance with the invention a container, especially adapted for enclosing radioactive substances such as radioactive liquids, which comprises; an inner container for receiving a substance to be contained, an outer container in which the inner container is disposed, and thermal insulation between the inner container and the outer container, in combination with a coolant tube associated with the inner container disposed within the outer container, said coolant tube containing a fluid coolant which can be circulated, a heat-discharge tube which also contains the coolant arranged at the outer container, and connecting lines at both tube ends of the cooling tube and the heat discharge tube through which said cooling tube and said heat discharge tube are in communication with each other. Other features which are considered as characteristic for the invention are set forth in the appended claims. Although the invention is illustrated and described herein as embodied in a container, especially for radioactive substances, it is nevertheless not intended to be limited to the details shown, since various modifications may be made therein without departing from the spirit of the invention and within the scope and range of equivalents of the claims.