SU100973A1 - Thermal insulation design for pipelines - Google Patents

Description

The invention is a thermal insulation structure for pipelines, which is a casing in the form of hollow semi-cylinders made from a mixture of gypsum with sawdust or other aggregate (for example, asbestos-slate waste). After molding and hardening, such semi-cylinders are laid and fixed by means of twisting rings around the insulated tubing, filling the gap formed between the housing and the tube with mineral wool or other thermal insulation material.

A specific feature of the proposed thermal insulation design is that one end side of each crawl-cylindrical housing element instead of the known gear supports is a semi-circular diaphragm bearing, which is displaced during the installation of the elements relative to the support of the adjacent housing element to form open cavities filled with thermal insulation mat.

Thanks to this design, a reduction in labor intensity, an increase in productivity is achieved; and facilitating the process of insulating pipelines.

FIG. 1 shows the upper half-shell housing element; in fig. 2 - a semi-cylinder of the same casing; in fig. 3 - wire frame diaphragm support; in fig. 4 - a longitudinal section of the heploisole choline structure; in fig. 5 - pipeline section with otbkovlennymi and. fixed casing elements.

Elements of heat insulating cyanoic construction for pipelines are made on the gank by molding from a mixture of construction with sawdust or other aggregate (for example, asbestos-slate waste). The inner diameter of each element is equal to the sum of the diameter of the insulated pipeline and twice the thickness of the layer of thermal insulation material. At one end of each half of the cylindrical element in the process of forming, a diaphragm support in the form of a semi-ring is formed, which is an integral whole with the element body. In order to ensure a high-quality assembly of the elements of the thermal insulating construction 1g of prevention of moisture leakage from their cavity, grooves or bevels can be made on the edges of the semi-cylindrical elements, by means of which the elements are mounted in a "lock." At a high temperature of the heat transfer fluid passing through the insulated pipeline, in order to avoid weakening the edge of the diaphragm tube during the heating of the elements, a small wire frame is inserted into the body of the supports (Fig. 3).

Laying and securing i-cylindrical to the elements of the casing on the insulated pipeline is made with mutual displacement A1 in the pipeline of the place where the diaphragm supports of the upper and lower elements are open (Fig. 4). Inside the cavity formed by the casing, the corresponding heat insulating material (for example, mineral wool}) is laid or poured in, followed by lightly pressing it manually. After fixing the elements of the casing on the pipeline by means of tightening rings (bandage), the seams of the casing are sealed with a t-ipsum solution in the usual order, as during the installation of heat distribution.

Subject invention

Thermal insulation design of pipelines, characterized in that, in order to facilitate filling of its casing with insulating material, instead of jagged semicircular diaphragm supports, made on one end side of each semi-cylindrical casing element and mutually displaced during the process, are formed to form open cavities.