RU15215U1 - THERMAL INSULATION PROTECTIVE COVER - Google Patents

Abstract

A protective casing for thermal insulation of the pipeline, consisting of a cylindrical shell with stiffening ribs and a device for securing it to the thermal insulation, characterized in that the ribs are made longitudinal on the inner surface of the shell and flexible connections are installed along the free edges of the ribs.

Description

2000111383

THERMAL INSULATION PROTECTIVE COVER

The utility model relates to the field of construction and can be used to protect mainly fibrous thermal insulation of pipelines, gas ducts and air ducts.

Known protective casing of thermal insulation of the pipeline in the form of a smooth sheet, bent around a heat-insulating fibrous layer that covers the pipeline and secured with wire ties 1. However, such a casing has a number of disadvantages: in case of damage to the ties, the sheet unfolds and does not protect the insulation, due to the smooth internal the surface of the casing may slip thermal insulation, and due to the tight fit of the casing to the thermal insulation, it is difficult to remove moisture that accidentally fell into the thermal insulation layer, thereby reducing The effectiveness of thermal insulation is given.

Closest to the technical nature of the claimed object is a protective casing of predominantly fibrous thermal insulation of the pipeline, consisting of a cylindrical shell with external annular stiffening ribs and devices for securing it to the insulation in the form of circles of bandages or self-tapping screws along the longitudinal and transverse joints CS. The ribs give rigidity to the shell of the casing and its shape is preserved even if the device for fixing it to thermal insulation is damaged. However, due to the smooth inner surface of the casing, thermal insulation can slip, and due to the tight fit of the casing to the thermal insulation, it is difficult to remove moisture that accidentally enters the thermal insulation layer, as a result of which the efficiency of thermal insulation is reduced. In addition, transportation of the casing to the installation site is difficult, since the casing does not collapse due to the ring stiffeners.

The utility model solves the problem of expanding the technological capabilities of the protective casing and increasing the efficiency of thermal insulation.

For this, in the protective casing of the thermal insulation of the pipeline, consisting of a cylindrical shell with stiffeners and a device MPK 7 F 16 L v59 / 00

According to a useful model, the fins are made longitudinal on the inner surface of the shell and flexible connections are connected to each other along the free edges of the fins.

Longitudinal ribs on the inner surface of the shell and flexible ties along the free edges of the ribs do not interfere with the folding of the shell into a roll, which facilitates its transportation. At the same time, when the roll is turned up to stretch the flexible ties, the shell becomes stiff, does not expand further and maintains a round shape, which increases its protective properties. A mesh is created from the ribs and flexible connections, which is pressed into the thermal insulation and prevents it from sliding off the pipeline. This grid is spaced apart by the height of the rib inward from the shell of the casing, as a result of which an air gap is created between the casing and the insulating layer, which can be ventilated through the joints of the sections of the casing. This facilitates the removal of moisture that accidentally gets into thermal insulation, which increases the efficiency of the latter.

In FIG. 1 shows a general view of a protective casing installed on a thermally insulated pipe; FIG. 2 - a fragment of the protective casing, in FIG. 3 - a variant of the location of flexible ties in a checkerboard pattern between the free edges of the longitudinal ribs.

The protective casing of thermal insulation consists of a thin shell 1, on the inner surface of which longitudinal stiffening ribs are fixed 2. On the free edges of the ribs 2 are installed connecting them with each other flexible connections 3. The shell 1 and the ribs 2 can be made, for example, of metal, thermoplastics or fiberglass, and flexible ties 3 - from cord yarn, wire, nylon fishing line, etc. Fastening ties 3 to the ribs 2 - by gluing, welding, metal or other paper clips. Fastening elements 5, for example, self-tapping screws, are installed along the closing seam 4 of the sheath 1 sheet. The protective casing is installed on the heat-insulating layer 6 (mainly of fibrous material) of the pipeline 7. Between

- 2 thermal insulation b and the shell 1 of the casing due to the emphasis of the ribs 2 and connections 3 in the thermal insulation 6 creates an air gap 8.

The protective casing works as follows. Shell 1 due to the flexibility of the connections 3 is easily rolled up and delivered to the installation site. After applying thermal insulation 6 to the pipeline 7, the casing rolled into a roll gradually turns around the thermal insulation 6. At the same time, the length of the flexible connections 3 is selected so that when the casing is expanded to the curvature of the heat insulation surface b, the connections 3 are stretched and prevent the roll from expanding further. When the flexible connections 3 between the free edges of the ribs 2 are staggered due to the lateral bending of the ribs 2, the compliance increases when the casing is unfolded. Ribs 2 and bonds 3 are pressed into the thermal insulation b and prevent its creep. Due to the tension of the bonds 3, the shell 1 does not unfold beyond a given curvature and holds well on thermal insulation b. The edge 4 of the sheet of the shell 1 is fixed by elements 5, for example, self-tapping screws. Due to the ribs 2 between the thermal insulation b and the shell 1, an air gap 8 is created, through which moisture vapor is accidentally trapped in the thermal insulation 6.

Compared with the prototype, the inventive protective casing of thermal insulation has advanced technological capabilities (it is easily rolled up, retains curvature when deployed, prevents thermal insulation from slipping, creates an air gap) and increases the efficiency of thermal insulation by facilitating the removal of moisture from it.

SOURCES IN ROMATION

1.Kamenetsky S., P., Utkin V.V. Reference book for special works. Thermal insulation works. - M.: Gosstroyizdat, 1961, p. 176, fig. eleven.

2. Ryabov K.D. Handbook of a young thermal insulator and waterproofing.- M .: Higher school, 1988, p. 100, fig. 39 (prototype).

- 3 FORMULAS

Claims (1)

A protective casing for thermal insulation of the pipeline, consisting of a cylindrical shell with stiffening ribs and a device for securing it to the thermal insulation, characterized in that the ribs are made longitudinal on the inner surface of the shell and flexible connections are installed along the free edges of the ribs.