DEVICE FOR FIELD PIPELINES FLAMELESS HEATING Russian patent published in 2010 - IPC F17D1/05 F16L53/00 

FIELD: machine building.

SUBSTANCE: device for field pipeline flameless heating consists of cylinder case by means of branches connected to at least two collectors and arranged concentrically on pipeline forming circular space between case and pipeline. Heat carrier circulates in this space. Also the collectors have an inlet branch with an installed there burner and a fan. The case can axially travel relative to the pipeline.

EFFECT: inexpensive device for pipeline heating, raised process indices of device, intensification of heat exchange, reduced wear of pipeline and reduced expenditures for repair and check of condition; raised fire safety; simple fabrication without special equipment.

2 cl, 3 dwg