Multispherical subsea enclosures

Abstract

A watertight enclosure for the underwater confinement of a device includes a set of ellipsoidal modules juxtaposed in a watertight manner and internally delimiting at least one volume receiving the device. It has been found that producing a watertight enclosure by means of juxtaposed ellipsoidal modules enables a total weight saving of the order of one third compared to a cylindrical envelope.

1 . A watertight enclosure for the underwater confinement of a device, comprising: a set of ellipsoidal modules juxtaposed in a watertight manner and internally delimiting at least one volume receiving the device. 
     
     
         2 . The watertight enclosure according to  claim 1 , including a removable end module of hemispherical dome shape connected to said set of modules by a watertight flange. 
     
     
         3 . The watertight enclosure according to  claim 1 , wherein the ellipsoidal modules are connected in pairs by cylindrical connectors. 
     
     
         4 . The watertight enclosure according to  claim 3 , wherein the cylindrical connectors have a thickness greater than that of the ellipsoidal modules. 
     
     
         5 . The watertight enclosure according to  claim 3 , wherein the cylindrical connectors are equipped with stiffener elements. 
     
     
         6 . The watertight enclosure according to  claim 5 , wherein the stiffeners are formed by a localized enlargement of the cylindrical connectors.