DE102006051810A1 - Part liner for renovation of partial damage in e.g. duct, has ring, where resin is stirred on carrier material to harden liner that represents supporting construction and accepts movement in sleeve area, and sealing material in ring - Google Patents

Abstract

The liner has a combination of support constructions made of fibers, where an elastomer ring is integrated with a channel for accommodation of a source material (5) in the constructions. The channel is firmly connected with the constructions. The ring is connected with the fibers in an operating process. A resin is stirred on the carrier material for hardening the liner that represents a statistically supporting construction and accepts the movement in a sleeve area (3), where the material is made of fiber-elastomer combination. A swellable sealing material is arranged in the elastomer ring.

Description

The The invention relates to a process for the production of a Partliner made of fabric-reinforced plastic short tubes combined with a flexible rubber-like element for accommodation of movements in sleeve joints of pipes, which for renovation from partial damage can be used in sewer pipes.

partliner for the rehabilitation of partial damage in pipelines have been around for several years, especially in the Wastewater area used. The current state of the art is briefly described below.

Partliner method are renovation procedures to improve the current functionality an existing defective, leaking pipeline. It will be here a flexible short tube made of carrier material with a reaction resin soaked and i.d.R. above a robot device in non-accessible pipes in the to be renovated channel introduced. In accessible pipe sections becomes the short tube made of carrier material brought to the site to be rehabilitated in the pipe by qualified personnel.

In not passable cross sections, the Partliner with water or Air pressure form-fitting from Robot pressed against the pipe wall of the existing old pipe. By the subsequent one Harden of the reaction resin creates a new sleeveless and fabric reinforced plastic short pipe in the existing sewer. The structure of a partliner exists usually of a three-layer wall construction. From the inside to Outside considered, you meet first on an inner film made of PEHD or PU. It prevents contact during curing with the robot arm and forms the pipe inner wall after installation. Behind it is the so-called composite; a combination of cured resin system, support material and / or reinforcement. The last layer or the pipe outer wall may possibly be UP resin Liners formed by an outer film become. She should be a possible Leakage of excess resin prevent.

The support materials the Partliner become short-hoses processed and form after impregnation with the respective resin systems the complete partial short tube system. The carrier materials can essentially be divided into two groups: synthetic fibers (Needle felt) and glass fiber fabric (eg corrosion-resistant E-CR glass) The carrier materials have to with resin if possible Completely imbued become (impregnation). The curing of the resin is predominantly thermal Initiators such as e.g. hardening done with steam or warm water. But also a light curing via photoinitiators is possible.

One Disadvantage of all the aforementioned Partlinersysteme is seen in that the resin-soaked short liner represent a rigid system. Straight existing piping systems due to their burdens to be absorbed in particular from traffic constantly exposed to minor movements. These are provided by the existing ones Pipe joints largely compensated with their sealing systems. One large part the well-known pipe damage is especially in the sleeve areas of the pipes, and just before and watched behind the thimbles. These damages are leaky socket joints, Radial cracks at the pipe tip or chipping due to too narrow Sleeve additions. In the rehabilitation of these known systems, the Partliner as rigid element inserted into the defective socket area. This often leads to further damage at the already rehabilitated place, because natural movements from the underground as a result of traffic loads or subsidence in the ground not can be absorbed by these rigid systems.

Of the Invention is based on the object to eliminate the aforementioned disadvantages, in which a system is created, which is a rehabilitation of the damage creates especially in pipe socket joints. This one is about absolutely dense and flexible Partliner system of carrier materials combined with an elastomeric rotating, articulated Seal with source effect allows.

Farther the task is to create a restoration cadastral system, so that the rehabilitated piping systems permanently monitored and the damage patterns can be documented and observed.

This is characterized according to the invention solved, that between the substrate, which e.g. made of needle felt or glass fiber fabric, an elastomer ring is incorporated, the two-sided firm and tight to the substrate is arranged.

As a result, the Partliner receives at the approach in the socket area of the old pipe an articulated connection, so that the forces occurring, for example, from traffic or ground can be absorbed. The damaged areas covered by the substrate shortly before and after the elastomer ring in the old pipe are covered in this way absolutely tight, so that a demolition of the Partliner and thus leaks consisting of infiltrations of Groundwater or exfiltration of contaminated wastewater can be avoided and movements can be absorbed.

Of the used elastomer ring receives in addition a chamber to the tube outer wall of the Old pipe in the one swellable Sealant is arranged. The swellable material ensures that with further movements in this articulated area and with it potential Dangers of leaks e.g. through infiltration, a re-seal possible is. Through this source remediation system on the elastomer ring is the Agility at this point of the tube, however, not affected.

Of the Construction of the redevelopment cadastre becomes through the use of the transponder technology allows. This is done in the seal on the Partliner or in the area of the carrier material a transponder or sensor integrated, which via known read and write systems e.g. communicates with the plant operator from the channel camera car. The built-in transponder which with an identification number is provided, this is contactless read out and stored in the EDP system of the plant operator. Behind this identification number can now a redevelopment cadastre with for the operator important data are stored. In particular, about this Communication system of damage location, the rehabilitation technique, as well other important administrative operating data are managed.

An embodiment is in 1 shown.

This shows 1 the Partliner according to the invention ( 1 ) in the old pipe system ( 2 ) in the socket area ( 3 ) is arranged. The Partliner ( 1 ) is fixed to the old pipe wall as described above ( 4 ), where in the socket area ( 3 ) on the Partliner ( 1 ) a circumferential elastomer ring with integrated source material ( 5 ) is arranged, which receives the movements of the system and eliminates leaks in the elastomeric ring, by the swelling power

Claims (3)

Partliner for the rehabilitation of pipe systems, characterized in that the Partliner consists of a combination of support structures such as fibers or felts, on which a circumferential elastomer ring is integrated with a chamber for receiving source material, which is firmly connected to the Trägerkonstuktion, characterized in that the rubber-like or rubber-like elastomeric rings are bonded to the fibers or felt constituents in a working process, characterized in that suitable resins are applied to the substrate material which enable hardening of the partliner by the known curing methods and thus the partliner represents a statically supporting structure, which can absorb movements in the sleeve area by the arranged elastomer ring, characterized in that a swellable sealing material is arranged on the circumferential elastomer ring towards the pipe inner wall. Partliner according to claim 1, characterized that in the elastomer ring or in the carrier material on a transponder or sensor is arranged, which allows the operator of the network a communication system for e.g. to set up a damage and restoration register. Partliner according to claim 1, characterized that the carrier material may consist of a fiber-elastomer combination (mixture).