Insulating cap for forward and return insulation for deep geothermal energy supply systems has container lid sealed to lines passing through it directly or via suspended tube stubs that protrude down to lower insulating cap edge

摘要

The device consists of a bottomless container enclosing the feed and return lines in corresponding numbers so that a quantity of air to be pressed onto the lowest insulating cap remains trapped when each individual cap rises. Sealing of the container lid to the lines passing through it is achieved directly or via suspended tube stubs that protrude down to the lower insulating cap edge.