RU47069U1 - REINFORCED FIBER CABINET - Google Patents

Abstract

Usage: in the construction of pipelines and gas ducts for various purposes, in particular chimney, ventilation pipes and gas ducts.

The utility model solves the problem of reducing material consumption, construction costs, as well as increasing the durability of reinforced fiberglass shell.

Inside the wall 1 of the reinforced fiberglass sheath, a metal frame 2 is mounted rigidly connected to the wall 1, for example by pasting between its layers. The metal frame 2 can be made in the form of longitudinal and / or annular metal rods, or in the form of a perforated metal sheet.

By reducing the dimensions of the structure, reducing wind loads, using additional stiffness of the fiberglass wall and its joint work with the metal frame, material consumption and construction costs are reduced, and by eliminating environmental influences on the metal frame, durability is increased.

Description

The utility model relates to the field of construction of pipelines and gas exhaust ducts for various purposes, in particular chimney, ventilation pipes and gas ducts.

Known chimney containing a fiberglass shell installed inside the metal frame in the form of a tower with sites with which the wall of the shell is connected by means of suspensions or sliding stops [1]. In this case, only the metal frame performs the supporting function and the additional rigidity of the shell is not used due to the flexibility of the suspensions and stops. In addition, to ensure a passage gap between the fiberglass wall of the shell and the metal frame, it is necessary to increase the dimensions of the frame. All this increases the consumption of materials and the cost of construction. In addition, open metal frame structures are susceptible to corrosion, which reduces the durability of the structure.

Closest to the technical nature of the claimed object is a reinforced fiberglass shell, the wall of which is supported on the outside by a metal frame installed close to the wall of the shell [2]. The wall of the shell is associated with the frame by means of support rings and sliding stops.

When installing the frame close to the shell, the dimensions of the structure are reduced, which leads to a decrease in material consumption and the cost of erecting a reinforced fiberglass shell.

However, in this case also only the metal frame performs the supporting function and the additional rigidity of the shell is not used due to the flexibility of the stops. Open frame metal structures are also subject to

corrosion, which reduces the durability of the reinforced fiberglass shell.

The utility model solves the problem of reducing material consumption, construction costs, as well as increasing the durability of reinforced fiberglass shell.

For this, in a reinforced fiberglass shell, the wall of which is supported by a metal frame, according to a utility model, the frame is installed inside the shell wall and is rigidly connected with it.

When installing the frame inside the shell wall, the dimensions of the structure are reduced, which reduces wind loads on it, and a rigid connection ensures the joint work of the frame with the shell wall, which allows the use of additional rigidity of the shell wall. The metal frame, located inside the wall of the shell, is protected from environmental influences, which increases its corrosion resistance. All this leads to a decrease in material consumption, construction costs, as well as an increase in the durability of the reinforced fiberglass shell.

Figure 1 shows a cross section of a reinforced fiberglass shell, figure 2, 3, 4 is a General view of a reinforced fiberglass shell with various options for the execution of a metal frame.

The reinforced fiberglass shell has a wall 1 formed, for example, by bonded layers of a fiberglass filler impregnated with a polymer binder. Inside the fiberglass wall 1, a metal frame 2 is mounted rigidly connected to the wall 1, for example by gluing between its layers. The metal frame 2 can be made in the form of longitudinal and / or annular metal rods (Fig.2, 3), or in the form of a perforated metal sheet (Fig.4).

Reinforced fiberglass shell works as follows.

Under the influence of operational loads, the forces are perceived jointly by both the metal frame 2 and the fiberglass wall 1 due to the rigid connection between them. Due to the installation of the frame 2 inside the wall 1

the dimensions of the structure are reduced, which reduces wind loads on it. The environment acts directly only on the fiberglass wall 1, which increases the corrosion resistance of the metal frame 2.

Compared with the prototype of the inventive reinforced fiberglass shell has a lower material consumption and requires less construction costs by reducing the dimensions of the structure, reducing wind loads, using additional rigidity of the fiberglass wall and its joint work with the metal frame. In addition, the durability of the reinforced fiberglass shell increases, due to the exclusion of environmental influences on the metal frame.

Sources of information

1. Structural fiberglass / Alperin V.I., Korolkov N.V., Motavkin A.V. et al. - M.: Chemistry, 1979, p. 316-317, Fig. 7.16 b, c

2. The chimney: Certificate for utility model No. 41057 of the Russian Federation / Pazushchan V. A., Astashkin V. M., Subbotin E. V., Nerkararyan V. A. - Declared. 06/07/2004, Publ. in bull. No. 28 for 2004 (prototype).

Claims (3)

1. Reinforced fiberglass shell for chimneys and flues, the wall of which is supported by a metal frame, characterized in that the frame is installed inside the wall of the shell and is rigidly connected with it. 2. Reinforced fiberglass shell according to claim 1, characterized in that the frame is made in the form of longitudinal and / or annular metal rods. 3. Reinforced fiberglass shell according to claim 1, characterized in that the frame is made in the form of a perforated metal sheet.