Разработка и исследование термостойких покрытий…
9
Developing and testing heat-resistant pipelines coatings
made of short basalt fibers
© M.A. Komkov, Yu.V. Badanina, M.P. Timofeev
Bauman Moscow State Technical University, Moscow, 105005, Russia
The article is devoted to one of the most important and urgent tasks in engineering devel-
opment — obtaining lightweight, non-flammable, environmentally friendly and cost-
effective insulating materials. The study shows that the highly porous basalt fiber materi-
al is the most efficient insulation for heat-insulating coating of pump-compressor pipes
(PCP), operating at temperatures up to 420 °C. The study tested the process of filtration
deposition of short basalt fibers with mineral binder from alumina of heat-insulating
PCP coatings in the form of cylinders and cylindrical shell. The research relies on the
thermal characteristics of basalt fibers and technological features of manufacturing
highly porous coating and results in determining the thickness of highly porous insulat-
ing PCP coating. During continuous hot air pumping through the PCP samples with
thermal insulation and a protective layer of fiberglass it was possible to experimentally
establish the heat conductivity coefficient of the multilayer material.
Keywords
: pump-compressor pipes, heat insulation, basalt fiber, heat conductivity coeffi-
cient, porosity, filtration deposition, cylindrical rings, shells, mass per unit length.
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