Container for storing a liquid, and use thereof

Abstract

The invention relates to a container for storing a liquid, which tends to decompose into gaseous decomposition components in the case of the conditions prevailing in the container ( 1 ) and in the case of which a chemical reaction equilibrium results between gaseous decomposition components and liquid, wherein a floating roof ( 29 ) is accommodated in the container ( 1 ) and the floating roof ( 29 ) comprises floats ( 33 ), using which the floating roof ( 29 ) floats on the liquid, and wherein the floating roof ( 29 ) is guided using a sliding seal ( 45 ) in the container ( 1 ). The invention furthermore relates to a device for storing heat, comprising a first container ( 57 ) for storing a colder liquid and a second container ( 59 ) for storing a hotter liquid and a use of the container and the device for storing heat.

1 - 13 . (canceled) 
     
     
         14 . A container for storing a liquid, which tends to decompose into gaseous decomposition components in the case of the conditions prevailing in the container ( 1 ) and in the case of which a chemical reaction in equilibrium results between gaseous decomposition components and liquid, wherein a floating roof ( 29 ) is accommodated in the container ( 1 ), wherein the floating roof ( 29 ) comprises floats ( 33 ), using which the floating roof ( 29 ) floats on the liquid, and wherein the floating roof ( 29 ) is guided using a sliding seal ( 45 ) in the container ( 1 ), characterized in that the sliding seal ( 45 ) is thermally insulated from the liquid stored in the container ( 1 ). 
     
     
         15 . The container of  claim 14 , wherein the floating roof ( 29 ) is constructed from at least two segments ( 61 ), wherein the segments ( 61 ) are connected to one another in a movable manner. 
     
     
         16 . The container of  claim 14 , wherein the floating roof ( 29 ) has at least one chamber, which contains thermally insulating material. 
     
     
         17 . The container of  claim 14 , wherein feedthroughs ( 35 ,  37 ) are formed in the floating roof ( 29 ). 
     
     
         18 . The container of  claim 17 , wherein the feedthroughs ( 35 ,  37 ) are sealed using a movable sealing plate ( 39 ). 
     
     
         19 . The container of  claim 14 , wherein the sliding seal ( 45 ) has protective units ( 53 ) against liquid creeping upward. 
     
     
         20 . The container of  claim 14 , wherein the floating roof ( 29 ) is guided on at least one guide in the container. 
     
     
         21 . The container of  claim 14 , wherein the floating roof ( 29 ) has units to compensate for thermal expansion. 
     
     
         22 . The container of  claim 14 , wherein the liquid is a molten salt. 
     
     
         23 . The container of  claim 22 , wherein the molten salt is a mixture of nitrite and nitrate salts. 
     
     
         24 . A device for storing heat, comprising a first container ( 57 ) for storing a colder liquid and a second container ( 59 ) for storing a hotter liquid, wherein the containers ( 57 ,  59 ) are connected to one another, so that the colder liquid flows out of the first container ( 57 ), after absorbing heat, into the second container ( 59 ) and flows out of the second container ( 59 ), after emitting heat, into the first container ( 57 ), wherein at least the second container ( 59 ) is a container according to  claim 14 . 
     
     
         25 . The device of  claim 24 , wherein a gas compartment ( 41 ) is formed in the first container ( 57 ) and in the second container ( 59 ) above the floating roof ( 39 ), and the gas compartments ( 41 ) of the first ( 57 ) and the second ( 59 ) container are connected to one another via a connecting line ( 67 ). 
     
     
         26 . A solar-thermal power plant comprising the container of  claim 14 . 
     
     
         27 . A solar-thermal power plant comprising the device of  claim 25 .