本发明涉及一种用于容器壁之间的环形间隙（9）的密封装置（2）的液体（3）的某些垂直圆形容器（1）和外壁（8）的浮动盖（5）与容器壁的周向方向上的至少一个（ 2）延伸的主密封件（11），包括至少一个滑动板（13），至少一个副密封（12）和至少一个密封膜（16）。 初级密封件（11）和所述次级密封件（12）由支撑系统（26，26A-26F）保持。 另外，至少设置跨越环形间隙的第一密封隔膜（21）（9）从所述副密封（12）的上端（19）到所述浮动盖的上边缘（22）（5）。 副密封（12）至少测量所述主密封件（11）的滑动板（13）的总高度的一半的高度。 所述支撑系统（26，26A-26F）作用于主密封件（11）的滑动板（13）和保持所述主密封件（11），其上缘（17）立即浸没的最大可能深度上述（4，4“）的浮动的 盖（5）。 在环形间隙（9）的第二密封膜（20，20“）的区域中布置。 次级密封件（12）是进一步在浮动盖（5）固定到所述弹簧元件（29，50）的上端（22）被按下。

The invention relates to a sealing arrangement for the annular gap (9) between the container wall (2) of a liquid (3) certain vertical round container (1) and an outer wall (8) of the floating cover (5) with at least one in circumferential direction of the container wall ( 2) extending primary seal (11), comprising at least one sliding plate (13), at least one secondary seal (12) and at least one sealing membrane (16). Primary seal (11) and the secondary seal (12) are held by a support system (26, 26a-26f). Further, a first sealing diaphragm (21) is at least provided which spans the annular gap (9) from the upper end (19) of the secondary seal (12) to an upper edge (22) of the floating cover (5). The overall height of the secondary seal (12) measures at least half the overall height of the sliding plate (13) of the primary seal (11). The support system (26, 26a-26f) acts on the sliding plate (13) of the primary seal (11) and holds the primary seal (11) with its upper edge (17) immediately above the maximum possible depth of immersion (4, 4 ') of the floating cover (5). In the region of the annular gap (9) a second sealing membrane (20, 20 ') is arranged. The secondary seal (12) is pressed by a further at the upper end (22) of the floating cover (5) fixed to the spring element (29, 50).