초록 ▼

To transfer a fluid at high service temperature and pressure without the limitations of rigid tubing, a flexible tube is provided with a plurality of generally concentric tubular layers for transferring fluids. The innermost layers define a fluid flow path and provide insulation without pressure con

To transfer a fluid at high service temperature and pressure without the limitations of rigid tubing, a flexible tube is provided with a plurality of generally concentric tubular layers for transferring fluids. The innermost layers define a fluid flow path and provide insulation without pressure containment whereas the outermost layers provide fluid containment and resist pressure exerted by the fluid flowing through the tube. By utilizing a plurality of layers of different materials selected to have specific characteristics, the flexible tube operates at a service temperature and pressure providing a high level of energy transfer.

대표청구항 ▼

A flexible tube having a plurality of generally concentric tubular layers for transferring fluids under pressure at high temperatures, comprising: an inner layer formed of a flexible material defining a fluid flow path for transferring fluids, said inner layer being sufficiently fluid permeable so a

A flexible tube having a plurality of generally concentric tubular layers for transferring fluids under pressure at high temperatures, comprising: an inner layer formed of a flexible material defining a fluid flow path for transferring fluids, said inner layer being sufficiently fluid permeable so as to causes said inner layer to be in a balanced fluid pressure condition when a fluid is being transferred through said tube; a first intermediate layer formed of a flexible insulating material surrounding said inner layer, said first intermediate layer being sufficiently fluid permeable so as to cause said first intermediate layer to be in a balanced fluid pressure condition when a fluid is being transferred through said tube; a second intermediate layer formed of a flexible material surrounding said first intermediate layer for containing fluids, said second intermediate layer being substantially fluid impermeable so as to cause said second intermediate layer to be in an unbalanced fluid pressure condition when a fluid is being transferred through said tube; said insulating material causing fluid between said first and second intermediate layers to be at a lower temperature than fluid between said first intermediate layer and said inner layer, said fluid between said first and second intermediate layers being at a greater pressure than the pressure externally of said second intermediate layer; and an outer layer formed of a flexible load resisting material surrounding said second intermediate layer for resisting fluid pressure, said outer layer structurally reinforcing said second intermediate layer to withstand the pressure of said fluid between said first and second intermediate layers so as to provide fluid pressure containment.