FI96236B - Method for the prevention of acid diffusion from flexible couplings used in a radiator network - Google Patents

Description

96236 "Method for preventing oxygen diffusion of flexible connectors used in radiator networks"

The invention relates to a method for insulating flexible sound-insulating connectors, i.e. attenuation connectors, contained in a water-circulating heating-5 network from being impermeable to oxygen.

Since the beginning of the 8th and 10th centuries, the Finnish Building Code has required the prevention of the transfer of sound from one apartment to another in the radiator networks of residential buildings. For this purpose, "hoses" with connectors made mainly of flexible - mostly rubber or plastic material - have been used.

15 Until the late 1980s, no attention was paid to oxygen diffusing through the hose material of the damping connector, i.e., oxygen was not known to diffuse through the material. Oxygen in the water of the radiator network causes corrosion in the pipes and other metal parts of the network, which can damage the network at worst even in a year.

Efforts have been made to solve the oxygen problem in several different ways. An inhibitor has been added to the mains water to bind oxygen. The substance must be added constantly, it is very kal-25 and the result is uncertain. The damping connectors have been replaced with new connectors made of anti-oxygen diffusion material. In these connectors, the barrier additive is added to the plastic raw material prior to fabrication of the hose. Replacing hoses with new ones is 30 very expensive due to the price of a new hose. In addition, installing the hoses requires draining the network with its own problems.

· Attempts have also been made to install a hose made of oxygen-impermeable material on top of the damping connector, but sealing has not been successful. This method also involves opening an insulating damping connector to thread the hose onto it.

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The method for which the patent is claimed solves the matter by wrapping a multilayer film having a surface layer of hot-melt material and other layers of low oxygen permeability material on the damping connector and its connectors, and forming a damping connector and a damping connector of the multilayer film.

The invention is illustrated by the accompanying drawing, in which,

Figure 1 shows a flexible damping connector mounted on a heating water circuit, and Figure 2 shows different embodiments and embodiments of the invention in partial views a., B. And c.

The figure shows the heating water circuit piping 1, which, as a conventional metal pipe, is very sound-conducting 20. In order to cut off the passage of sound, for example between dwellings, the metal pipe has been replaced in part by a "hose" 2 made of a flexible material connected to the metal pipe 1 by conventional connectors 3. The hose or damping connector 2 in the sound bridge pipe 1 is made in different implementations. such as a plastic tube or a metal flexible tube, for which, however, oxygen permeability has not been taken into account.

In carrying out the invention, a multilayer film is wound on the damping connector 2 and its connecting connectors 3, in which • the surface layer is made of a heat-adhesive material. This hot-melt material can be, for example, polyethylene.

The other layers of the multilayer film are a low oxygen permeable material such as aluminum foil or EVOH (ethylene / vinyl alcohol). In this way, the multilayer film forming the sheath obtained by wrapping is obtained

II

3 96236 sealed on the old hose and its fittings by heating it to a temperature where the adhesive film melts and adheres.

5 The part of the membrane projecting over the hose connectors is sealed either by connectors 5 with elastic material, i.e. collar connectors, or by fusing it into the pipe (6).

Advantages of the method according to the invention compared to the current alternatives include the fact that the method is simple, reliable and very inexpensive. It is not necessary to drain or temporarily disable the battery network when implementing method-15. The network does not need any aftercare after the procedure (except for the new basic adjustment in all methods).

Claims (3)

96236 A method for insulating flexible sound-insulating connectors, i.e. damping connectors, within a water-circulating heating network from being oxygen-impermeable, characterized in that a multilayer film (4) with a layer of hot-melt material is wound on the damping connector (2) and its connecting connectors (3). 10 low oxygen permeable material, and the multilayer film is formed by heat-gluing a sheath covering the damping connector (2) and its connecting connectors (3). Method according to Claim 1, characterized in that the jacket is hot-glued to the heating circuit pipes (6) connected to the damping connector (2). Method according to Claim 1, characterized in that the jacket is connected to the pipes connected to the damping connector (2) 20 by means of a collar connector (5). For the purpose of isolation from the color transfer system, 25 flexible isolation solutions or damping systems are provided, in which case the genome transducer is separated, the overnight damping system (2) is used as a combination of (3) Variables of the material and the mixture of 30 species of genome-free material, and of which the genome is shown to be genome-free (2) and of the present invention (3). 35 2. The first patent claim 1, which is incorporated herein by reference in its entirety (6), is based on the disclosure of claims (2). ii 96236 3. A patent according to claim 1, which is defined as a reference to the slang (5), is based on the invention (5).