[en] Metal foils are suspended with their upper edges from the sheet of the upper border. Their lower edges can move due to thermal effects on the sheet of the lower border. The lower edge is made with a U-shaped cross section, so that the edge away from the foil surface touches the sheet along a line and the distance of the vertical leg of the U corresponds to the spacing of two metal foils. A preferred form of the device provides that the metal foils have L-shaped edges at their upper ends and are welded to the sheet of the upper stepped border. (orig./HP)

[en] The container design can be defined as comprising a metal housing, a pressure vessel and gamma shield assembly in said housing, positioning means extending between said housing and said assembly for spacing the same, and insulation essentially filling the space between said assembly and housing and comprising water beads encapsulated in plastic

[en] Each dish-shaped insulating element in the form of a thick-walled hollow cylinder cut open has a support structure. This consists of profile bars running into the longitudinal eges and annular shell segments on both front sides. The outer walls and inner walls are formed of thin metal foil. Unstable mineral fibre mats are suitable as thermal insulation material. The insulation elements can, if necessary, be matched to pipe elbows, T ducts, pipe flanges and valves. (DG)

[en] The invention relates to thermally-insulating elements. It deals with an insulating element constituted by two telescopic parts, each of which comprises an outer envelope and an inner envelope, and sheets adapted to slide with respect to each other, a bolt prohibiting the disassembly of the whole device. This can be applied to the thermal insulation of reactors and pipes in nuclear power-stations

No abstract available

[en] This disclosure relates to an insulating system which is particularly adapted for insulating the walls, floors, ceilings and like structure of buildings and includes a panel having a hollow chamber or interior under negative pressure (vacuum) and being of a variety of external peripheral sizes and shapes to fit within areas defined by wall and/or floor and/or ceiling studs, beams, or the like, a plurality of springs, chains or the like for supporting the panel in generally spaced relationship to an associated building wall, ceiling, floor or like structure, and a plurality of pin-like elements of relatively small cross-sectional configuration normally spaced from the exterior surface of the panel for contacting a limited exterior surface area of the panel only upon the springs, chains or the like becoming inoperative which would in the absence of the pin-like elements result in direct contact between the panel and the associated building wall, ceiling, floor or like structure and thus reduce the insulating efficiency thereof

[en] It is proposed to use element for thermal insulation of nuclear facilities which consists of individual metal boxes on whose backside a cushion-type heat insulation material is fastened and covered in a dust-free manner by metal foils. These prefabricated elements may be assembled as needed and also easily dismounted. Because of their flexibility special devices to absorb the thermal expansions become unnecessary. The cover with the metal foil is not susceptible to stress corrosion and can easily be decontaminated. Variations of the constructional design are claimed. (UWI)

[en] Approximately 20 percent of the territory of Russian Federation is located in the Arctic, there resides about 1.5 million people and about 30 large and medium sized cities are located. Another significant factor is the concentration in the territories north of the 67th parallel of a large number of developed and promising mineral deposits: oil and gas among them. In connection with the extraction and processing of natural resources, it is necessary to develop construction technologies in conditions of extremely low natural temperatures and permafrost. Construction in such regions is becoming one of the priorities of modern technological development, which provides for the creation of special construction systems oriented to the construction of high-risk facilities in the Arctic Circle. Such facilities include sea oil ships, oil and gas platforms, equipment for transportation of petroleum products, gas reduction units, and oil refining plants. In each of the above listed objects, it is necessary to correctly choose the insulation, which will ensure a high thermal insulation ability, and also be fireproof and durable. The research methodology outlined in the article is based on the method of mathematical planning of the experiment and statistical processing of its results with subsequent analytical optimization. Engineering interpretation of the results allowed to form a nomogram for the selection of technological parameters. The decisions, which became the subject of discussion in the article, are relevant for any region in which oil and gas production on the sea shelf and, especially, in severe climatic conditions develops. (paper)

[en] The piping design is analyzed in unsteady-state conditions, with the main goal of minimizing operational costs and initial investments of a plant. All heat losses are calculated by applying the control volume method. The results confirm the applicability of the method and show that the influence of the transient regime on the condensation rate and economical insulation thickness must be considered. (author)

[en] In an arrangement for feeding a fluid at a given temperature into a vessel containing fluid at a different temperature from an inlet pipe through an inlet nozzle to feedfluid distribution means in the vessel, a removable thermal isolator arrangement is provided. Spaced concentric sleeves form a series of fluid spaces which thermally insulate the inner surface of the nozzle from the feedfluid and leakage feedfluid is directed away from the nozzle whereby thermal cycling of the inner surface of the nozzle is minimized to eliminate cracking thereof. (Auth.)