Device for storing compressed gas, vehicle

1. A device for storing compressed gas, the device comprising a storage line ( 1 ), to which at least one compressed gas container ( 2 ) is connected via a valve ( 3 ),

wherein the storage line ( 1 ) has at least one connection piece ( 4 ) for a gastight connection of the at least one compressed gas container ( 2 ), wherein a safety element ( 5 ), which has a filter function and a shutoff function, is integrated into the connection piece ( 4 ), and wherein the safety element ( 5 ) comprises a filter unit ( 6 ), which is accommodated in the connection piece ( 4 ) in a manner such that it can be moved back and forth, is supported at its end facing away from the compressed gas container ( 2 ) via a fusible ring ( 7 ) and is held at an axial distance from a sealing seat ( 8 ) integrated into the connection piece ( 4 ).

2. The device as claimed in claim 1 ,

wherein the shutoff function of the safety element ( 5 ) is thermally activatable.

3. The device as claimed in claim 1 ,

wherein the fusible ring ( 7 ) is produced from a metallic material.

4. The device as claimed in claim 3 , wherein the metallic material is a metallic alloy.

5. The device as claimed in claim 4 , wherein the metallic alloy is based on bismuth.

6. The device as claimed in claim 3 , wherein a melting point of the metallic material is below 300° C.

7. The device as claimed in claim 6 , wherein the melting point of the metallic material is below 250° C.

8. The device as claimed in claim 7 , wherein the melting point of the metallic material is below 200° C.

9. The device as claimed in claim 1 ,

wherein the valve ( 3 ) via which the compressed gas container ( 2 ) is connected to the storage line ( 1 ) is a flow limiting valve, wherein the valve ( 3 ) and the safety element ( 5 ) are connected in series and together form a shutoff valve as a further safety element.

10. The device as claimed in claim 1 ,

wherein the compressed gas container ( 2 ) is screwed onto the connection piece ( 4 ) directly or indirectly.

11. The device as claimed in claim 10 , wherein the compressed gas container ( 2 ) is screwed onto the connection piece ( 4 ) directly or indirectly via a neck-shaped end section ( 2 . 1 ) and a union nut.

12. The device as claimed in claim 1 ,

wherein the compressed gas container ( 2 ) has, in a region of a further end section ( 2 . 2 ), a closure body ( 9 ) into which at least one further safety element is integrated.

13. The device as claimed in claim 12 ,

wherein the at least one further safety element is a vent valve ( 10 ) with an integrated rupture disk ( 11 ) and/or a temperature limiting valve ( 12 ).

14. The device as claimed in claim 12 , wherein the closure body ( 9 ) is a closure screw.

15. The device as claimed in claim 12 , wherein the further end section ( 2 . 2 ) is neck-shaped.

16. The device as claimed in claim 1 ,

wherein at least one shutoff element ( 13 ) is integrated into the storage line ( 1 ) adjacent to an individual branch ( 22 ), and wherein the number of shutoff elements ( 13 ) corresponds to the number of compressed gas containers ( 2 ).

17. The device as claimed in claim 16 , wherein the at least one shutoff element ( 13 ) is actuated manually and is in the form of a shutoff screw.

18. A vehicle having a device as claimed in claim 1 , wherein the compressed gas is hydrogen or natural gas.

19. The device as claimed in claim 1 , wherein the compressed gas is hydrogen or natural gas.