System comprising a cryogenic container and a heat exchanger with a connection block

A system comprising a cryogenic container and a heat exchanger for heating cryogenic fluid removed from the cryogenic container, wherein the cryogenic container is an LNG container or a hydrogen container, the heat exchanger comprising a first heat exchanger tube for heating the cryogenic fluid, with a removal line connecting the first heat exchanger tube to the cryogenic container,

• the first heat exchanger tube being surrounded by a jacket and the heat exchanger having a medium inlet and a medium outlet for heat exchange medium in order to flush a heat exchange medium entering the medium inlet and exiting the medium outlet around the space between the jacket and the first heat exchanger tube,
• wherein the heat exchanger comprises a single-piece connection block with a first outer opening and a second outer opening and an inner opening, the two outer openings and the inner opening inside the single-piece connection block being connected by a connection passage, the first heat exchanger tube being connected directly to the inner opening of the connection block and a first end of the jacket being attached to the connection block in a fluid-tight manner.