| 摘要 |
Subject of the invention is pressure tank, especially three-bottoms tank, creating beneficially toroidal tank, comprising connected bottoms, equipped with connector pipes for installation, brackets for fastening the tank and cover, type plate, equipment cover, inner bottom, inner shell, divider and is characterized by that the outer, upper bottom (1) together with outer, lower bottom (2) create outer tank shell, whereas inner bottom (4) is connected with the inner shell (3), creating the central, inner part (S) of the tank, and connector pipes (9, 9a, 9b and 14) and flow connectors (15, 15a) have on their length two zones: zone A -with walls of increased thickness and zone B -with walls of reduced thickness, beneficially on the whole circumference of connector, whereas the wall thickness in zone B is between 0,5 up to 1,7 of the thickness of tank elements when the wall thickness is between 0,01 up to 2,9 mm and 0,3 up to 1,4 for walls thick above 2,90 mm. |
