IL31587A

IL31587A - Vessel for the transport of a radioactive substance which is adsorbed on an ion exchanger in the granular state

Info

Publication number: IL31587A
Application number: IL31587A
Authority: IL
Original assignee: Commissariat Energie Atomique
Priority date: 1968-02-28
Filing date: 1969-02-10
Publication date: 1972-06-28
Also published as: GB1220035A; DE1908253B2; CH503351A; BE728061A; NL6902894A; DE1908253A1; LU58051A1; FR1563936A; ES364173A1; IL31587A0; US3626191A; SE344130B

Description

Vessel for of a radio active substance adsorbed on an lorn exchanger granular state A The present relates to a vessel for the transport of a radioactive substance which is adsorbed on an ion exchanger in the granular The vessel according to the invention in which is circulated a solution containing a radioactive stance to be adsorbed on the ion exchanger makes it possible to satisfy the different practical requirements which are outlined whereas this was not the case with columns of known types which employed for the same purpose and which usually had the shape of a right These requirements are as follows J the vessel must permit connection to one or a number of stationary installations in order that the radiactive tion can circulate therein under the most favorable conditions of safety the vessel must ensure uniform distribution of said solution throughout the mass of ion exchanger the vessel must permit heating of the ion exchanger and of said solution while this latter is being the vessel must serve to transfer the radioactive substance and comply with standards of transportation of radioactive the present invention relates to a vessel for the purpose of transporting a radioactive substance which is adsorbed on an ion exchanger in the granular said vessel teeing essentially characterized in that it comprises a column in the form of a cylinder which is intended to contain an ion exchanger in the granular state and is surrounded by a shield having good thermal conductivity and at least one i e for the su l of radioactive solution which enetrates into cylinder which constitutes the column can he formed the juxtaposed assembly of two half at least one pipe for the supply of radioactive solution being intended to penetrate into each Said discharge pipe emerges from the column which is signed in the form of a cylinder and provision is made for a cup which is formed in said shield and in which the supply and discharge pipes have their and for a device which serves to heat the radioactive solution which circulates within said In an advantageous form of said heating device is a housed within the inner cylinder of the walled cylinder ring which forms the In another form of a coil housed within the inner cylinder of the cylinder ring which forms the column employed for circulating a liquid which is irradiated by the radio active element is adsorbed on the granular ion exchanger and the downstream end coil constitutes said pipe for of irradiated Further properties and advantages of the present invention will be brought out by the following description of one form construction of the vessel in accordance with the said description being given solely by way of explanation and not in any sense by way of Reference is made to the accompanying in 1 is an axial sectional view of said 2 is a sectional view the vessel of this view being taken at right angles to the longitudinal axis of the In these the vessel in accordancewith the invention There are adapted to penetrate each of Bald rings a pipe 3a and a pipe 3b respectively which serve to supply a solution and a pipe and respectively which serve to discharge said A cup 5 is formed in the shielding 2 and the pipes have their openings in the base of said A coil 6 housed within the cylindrical cavity 7 serves to heat the radioactive solution which circulates within each of the two lb the reference numerals 8 and 9 designate respectively a thermal protection casing and The vessel in accordance with the invention is intended to transport a radioactive substance which is adsorbed on an ion exchanger in the granular state which is placed within the two half cylinders and The ion exchanger for of resin beads and the radioactive substance to be adsorbed on said ion exchanger for caesium contained in a concentrated solution of fission The device in accordance with invention operates ing to one of the two modes described First mode of operation the radioactive solution passes through the supply pipes 3a and into the two half cylinders lb indicated by the arrows and impregnates the ion exchanger shown in the the radioactive element which is thus adsorbed on the granular ion exchanger is recovered by elution pipes arrows for the purpose of constituting sources outside the The cup 5 serves to connect the vessel to a stationary thereby permitting the radioactive solution to culate under the best conditions of and the dimensions of the two lb are chosen so while the solution is being the pressure drop is low example of the order of 1 meter of water column in respect of flow rates of a few tens of decimeters of solution per and so that the solution should be uniformly distributed throughout the mass of The coil 6 serves to heat the ion exchanger and the active solution while this latter is being circulated within the cylindrical the temperature attained being within the for of to Second mode of operation the radioactive element which is adsorbed on the granular ion exchanger constitutes an annular radiation source disposed around the cavity 7 which serves as an irradiation chamber and the coil 6 is employed for the circulation of a liquid which is irradiated by the radioelement sorbed on the granular ion The downstream end of said coil constitutes the pipe through which the irradiated liquid is The shielding 2 is in direct contact cylinders thereby permitting of efficient removal of heat produced within the ion exchanger by the radioactive In this the temperature attained within the ion exchanger during periods of storage is maintained at an acceptable The thermocouples 9 serve to determine at each moment the temperature which exists within the interior of each half cylinder insufficientOCRQuality

Claims

1. A vessel for the purpose of transporting a active substance which is adsorbed on an ion exchanger in the granular said vessel being characterized in that it prises on the one hand a column in the form of a cylinder which is intended to contain an ion exchanger in the granular state and is surrounded by a shield having good thermal conductivity and on the other hand at least one pipe for the supply radioactive solution which penetrates into said column and least one pipe for the discharge of irradiated A vessel in accordance with claim characterized that the constituting the column is formed by the Juxtaposed assembly of two half at least one pipe for the supply of radioactive solution being intended to penetrate into each half A vessel in accordance with claim characterized in that said discharge pipe emerges from the column which designed in the form of a cylinder and that provision is made fo a cup which is formed in said shield and in which the supply and charge pipes their and for a which serves to heat the radioactive solution which circulates within said A vessel in accordance with claim characterized in that said heating device is a coil housed within the inner cylinder of the double walled cylinder which forms the A vessel in accordance with claim characterized in that a coil housed within the inner cylinder of the cylinder which forms the is employed for circulating a liquid which is irradiated by the radioelement which adsorbed on the granular ion exchanger and the downstream end of coil constitutes said pipe for the discharge of irradiated A vessel accordance claim 1 for the port of a radioactive adsorbed on an ion exchanger in the granular substantially as hereinbefore described with reference to and as illustrated in the ing 7 For the AND PARTNERS insufficientOCRQuality