EP1426528A1 - Water reservoir, as well as procedure for its production or reconstruction - Google Patents

Abstract

The water reservoir (11) has a basin (13) to contain the water, and especially potable water, which is at least partially of brickwork (15). The basin has an inner wall (17), at least at the side walls, at a gap from the brickwork. The inner wall is formed by a spacer foil or fabric, with burrs, at the inner side which is coated with a setting synthetic resin, to define the hollow space. A fabric of woven glass fibers is laid into the plastics layer of the inner wall. The reservoir basin has at least one water inflow (19), and an outflow (21).

Description

The present invention relates to an at least partially masonry Existing water reservoir for the absorption of water, in particular of Drinking water, with a container that is at least partially on the inside is provided with at least one protective layer, and a method for the same Production.

It is known to have masonry reservoirs with an inside Protective layer to protect the water from contamination by defective To protect masonry. The protective layer applied to the masonry has also the purpose of preventing the formation of deposits. Disadvantageous water reservoirs designed in this way is usually the case with a wall crack the layer applied to the masonry also tears and contaminates Water can penetrate into the reservoir from the outside, or water through the crack emerges from the reservoir. This may take a long time Period not noticed since an inspection for damage to the masonry is not easily possible.

CH-A-597 475 describes a tank suitable for wine or other liquids, or can also be used for solids. The tank is with one Concrete wall created as an outer wall and an inner wall. On The space between the outer wall and the inner wall is closed rigid supports limited. A spacer is described as a support, the separated, outward and outward has narrowing frustoconical embossments. As a result of the imprints the spacer is not fully attached to the outer wall. The The space in between can be vented through a vent. The gap can be drained at the bottom of the tank and has an overflow Outside. The embossments have a diameter of 70 mm and a depth of 8 mm and a mutual distance of 60 mm. The imprints have on their outward facing flat surfaces. This area is with some Embossments penetrated by a screw. With the screw is the Spacers attached to the outer wall. In the places of Spacers on which no embossments are formed is the Inner wall, a 1 mm thick V2A steel sheet, on the spacer and is attached to it with welding spots. As an alternative to an interior wall panels joined together seamlessly are also described as being Inside a plastic bladder made outside the tank into the tank can be used. This consists of flexible material relatively thin Wall thickness and its dimensions are adapted to the tank. The cavity serves between the inner wall and the outer wall Temperature control by transferring heat from the tank to the tank External wall largely prevented. He can take up a coolant serve to cool the fermenting wine. Can also through the cavity Condensation water can be discharged. On the surface smoothness of the outer wall do not have to make too great demands.

The object of the present invention is a water reservoir and a method to provide for its manufacture, in which the input disadvantages mentioned are largely avoided. In particular, a Water reservoir are provided, in which there is no crack in the masonry means that the reservoir must be leaking. Another goal is one Process for the production and in particular renovation of existing ones To propose water reservoirs made of masonry.

According to the invention, the object in a method according to the The preamble of claim 1 realizes that a waterproof hardening plastic layer liquid on a three-dimensional Spacer is applied. The spacer is on the Arranged adjacent to the inside of the masonry and defines one there permeable cavity between the masonry and the waterproof Plastic layer. This construction is based on the spatial conditions customizable. The spacer can be flexible and therefore the Adjust the surface of the masonry and preferably only afterwards be coated. With sufficient flatness of the surface it can also already coated on the masonry.

The spacer is advantageously present in webs. Then several Sheets of the spacer abutting the inside of the wall arranged side by side. Gaps between the individual sheets be with the plastic layer and / or with a second Plastic coating bridges and seals. Expediently the lanes are overlapping.

A big advantage of such a construction is that the surface of the existing masonry does not have to be treated with a lot of effort. Old Protective layers, for example, do not need to be removed beforehand. It also allows between the masonry and the inner wall existing cavity to determine whether there are any leaks. As masonry within the scope of the present invention, any type of concrete construction, as well as walls made of concrete and / or bricks.

An elevation or nubs having an elevation or knobs is advantageous Spacer film provided, the elevations or knobs on the masonry issue. The protruding from the surface of the spacer film Elevations or bulges are preferably approximately pyramidal or conical and have a height between approximately 0.5 and 2 mm, preferably between 0.7 and 1.5 mm. To form a first The spacer film with at least one curable plastic layer Resin coated. With the help of the spacer film can be inexpensive Kind a cavity between masonry and inner wall are formed. The coating of the spacer film also creates a tough bond created which can withstand high loads. An even bigger one Achieving toughness can be at least one on the spacer film Glass fiber reinforcement are applied, which then with a curable Plastic is coated. The spacer film is expediently on Bottom and provided on the side walls of the container. A relocation of the Spacer film on the reservoir ceiling is generally not required. The The inner wall is preferably arranged in a floating manner in the container. this has the advantage that cracks in the outer masonry do not automatically increase leads to a leak in the container.

An aluminum knobbed film is preferably used as the spacer film, which is preferably primed on both sides. Thanks to the coating on both sides The aluminum bubble film with a primer is good against corrosion protected. Aluminum bubble wrap is rolled up in sheets and rolls commercially available at low cost. It is conceivable to use a spacer film Cardboard bubble wrap to use, which preferably with a Gas diffusion inhibiting primer is provided. According to an advantageous one The variant between the masonry and the inner wall existing cavity airtight to the environment, so that hardened plastic layer by means of over or under pressure for tightness can be checked.

Instead of a spacer film, there is also a three-dimensional knitted spacer can be used in which two textile knitted fabrics arranged parallel to one another Wickerwork surfaces are kept at a distance from each other by pile threads. The one Knitted or wickerwork surface is applied to the inside of the wall arranged. The other knitted or wickerwork surface is made of plastic soaked and coated.

The present invention also relates to a water reservoir according to the Preamble of claim 12. This water reservoir stands out according to the invention in that a three-dimensional spacer is present, that with a liquid applied to the spacer Plastic is coated. Once cured, this plastic forms a watertight one Plastic layer. The spacer is on the inside of the masonry arranged adjacent and defines a permeable cavity between the masonry and the waterproof plastic layer.

The spacing means are advantageously present in webs and are several of these Sheets arranged side by side on the inside of the masonry. There are gaps between the individual sheets with the plastic layer and / or a second plastic coating bridges and seals.

By providing such an inner wall made of plastic coated three-dimensional spacers can existing Water reservoirs can be renovated in a cost-effective way. New, according to the invention Trained reservoirs have the advantage of causing leaks in the masonry cannot lead to contamination of the reservoir contents.

The inner wall by means of the waterproof inner wall is advantageous protruding pile threads, elevations or nubs supported on the masonry. This is advantageously done by using elevations or knobs having spacer film, at least on the inside with a first Plastic layer is coated from a curable plastic. According to one particularly preferred embodiment is the plastic layer with a Fibers reinforced. For this purpose e.g. Fiber fabric, preferably glass fiber fabric, Glass mats, nonwovens and textile fiber mat and the like. This is a Bond formed between spacer film, fiber fabric and plastic, which can withstand high loads.

When using a textile spacer fabric, one of the two is parallel Knitted or wickerwork surfaces impregnated with plastic and thereby forms one stiffened wall. A waterproof, through the fibers of the spacer fabric Reinforced plastic layer is due to the pile threads at a distance from the inside of the Masonry kept. Therefore, between the plastic layer and the Masonry formed a cavity. It is when the distance knitting is soaked make sure that the cavity is not filled with plastic. Put between webs of spacer fabrics are advantageous with a sliver bridged. Glass or come as fibers for the spacer fabric Plastic fibers into consideration. The first plastic layer is expediently over the entire surface with a second plastic coating coated. To achieve a steam seal can in the Plastic coating, e.g. between the knitted spacer and one additional fiber reinforcement, or between the first plastic layer and a plastic coating forming the surface of the inner wall, a Aluminum foil must be inserted.

The inner wall according to the invention is preferably floating in the container arranged, i.e. the inner wall is not solid with the surrounding masonry connected. The pimpled film or the spacer fabric lies on the masonry only on and can be moved in the plane of contact with respect to this become.

Although the inner wall is always installed on the top of the container , it is generally sufficient if the spaced inner wall on Bottom and on the side walls of the container is provided. Preferably the upper edge of the inner wall is connected to the masonry in an airtight manner. this has the advantage that between the masonry and the inner wall a compared to the Environment watertight and preferably airtight sealed cavity is formed, which is sealed, for example, by means of negative or positive pressure can be checked. For this purpose, an externally accessible, preferably lockable test or relief connections are provided, which connects the cavity with the environment. It is advantageous Test spigot provided on the floor or at a short distance from the floor. In the Condensed water entering the cavity or water penetrating from the outside can therefore pass behind the aluminum studded film or between the pile threads be dissipated.

A second cover layer is advantageous on the first plastic layer Formation of a second continuous smooth surface is provided. The The top layer is preferably colored white and is non-porous. She has to hygienic requirements for the storage of drinking water are sufficient.

Fig. 1:

schematisch, ein erfindungsgemässes Wasserreservoir mit einem äusseren Mauerwerk und einer beabstandeten Innenwand im Schnitt;

Fig. 2

einen Schnitt durch das Mauerwerk und die Innenwand mit einer Noppenfolie als dreidimensionalem Distanzhaltemittel.

Fig. 3

einen Schnitt durch das Mauerwerk und die Innenwand mit einem Distanzgewirke als dreidimensionalem Distanzhaltemittel.

The invention is explained in more detail below by way of example with reference to the following figures. It shows:

Fig. 1:

schematically, an inventive water reservoir with an outer masonry and a spaced inner wall in section;

Fig. 2

a section through the masonry and the inner wall with a bubble film as a three-dimensional spacer.

Fig. 3

a section through the masonry and the inner wall with a spacer fabric as a three-dimensional spacer.

The water reservoir 11 shown schematically in FIG. 1 consists of a Container 13 with masonry 15 and one spaced apart from the masonry 15 Inner wall 17. In the present context, concrete walls are used as masonry or walls made of bricks or other mineral materials, which can be formed in one or more layers. The container 13 of the Water reservoirs 11 is used to hold drinking water. In the container 13 open an inlet 19 for the supply of water and an outlet 21 for the Deriving drinking water for consumption purposes. One at the bottom of the container 13 The provided cleaning nozzle 23 allows all water from the container 13 drain so that the container 13 cleaned or checked for damaged areas can be.

An overflow nozzle 25 inserted into a wall of the masonry regulates this maximum filling level of the container 13. The overflow nozzle 25 is a angled tube, the upright portion in the container 13 with the Pipe opening 27 is oriented upwards. If the water level in the tank exceeds 13 the pipe opening 27, the water flows through the overflow nozzle 25 to the Environment.

The interior of the container 13 is by a not shown in Figures 1 and 2 Access hatch in the ceiling 29 accessible. A ladder arranged in the container 13 31 allows people to enter the container 13 for cleaning or inspection descend.

The inner wall 17 has an elevation or knob 35 Spacer film 33, which with the elevations or knobs 35 on the masonry 15 is present. Between the masonry 15 and the inner wall 17 is a through Nubs formed cavity 36 present. The elevations or knobs 35 are preferably at regular intervals of a few millimeters, e.g. 3 up to 10 millimeters, formed on the spacer film. The spacer sheet 33 is with a first plastic layer 37, into which a glass fiber fabric 39th is inserted, coated.

At least one second plastic layer 41 can be on the first plastic layer be arranged, which has the function of a cover or protective layer. The The top layer forms a non-porous, smooth coating, which repels dirt acts. Form spacer film, glass fiber reinforcement and first plastic layer together a firm bond which corresponds to that in the water tank 13 is able to withstand the existing water pressure, so that the knobs 35 do not be squeezed together. A test socket 43, which in the masonry 15th is inserted, connects the cavity 36 with the container environment. In the Cavity 36 penetrating water accumulates in the floor area and occurs through the test socket 43 to the outside, which enables early detection of possible Leaks allowed. The upper edge 45 of the inner wall is with the surrounding one Masonry 15 connected airtight, so that a check of the cavity possible leaks can also be done by means of negative or positive pressure.

A water reservoir is manufactured as follows:
First, sheets of preferably gas- or liquid-impermeable spacers, in particular an aluminum spacer film with a thickness between about 0.2 mm and 0.4 mm, are applied to the masonry. The spacer foils can be attached, for example, with the aid of double-sided adhesive strips, which are previously glued to the inside of the container at certain intervals. Alternatively, the masonry can first be sprayed with a contact adhesive. The spacer film sheets are laid on the masonry in such a way that the edge areas of the film sheets overlap. The overlapping zones are then preferably additionally covered with an adhesive tape, for example aluminum adhesive tape, in order to prevent penetration of the later sprayed-on synthetic resin mixture into the cavity between the spacer film and the masonry. As soon as the masonry on the floor and on the side walls is covered with spacer films, the multi-component synthetic resin mixture is sprayed on.

The multicomponent mixture is preferably a reactive and Room temperature fast curing epoxy resin or polyurethane / polyol mixture used. Fast curing mixtures can include polyisocyanates (e.g. aliphatic, cycloaliphatic or aromatic di- and triisocyanates and / or Mixtures thereof) and polyols and / or diamines or mixtures thereof contain. The isocyanates are preferably already prepolymers. As diamines aromatic diamines, urea or urea compounds can be used become.

Solvent-free two-component resin systems are particularly advantageous used, which can be used in a ratio of 1: 1. Then these will immediately mixed in the spray nozzle of a spraying system and sprayed on. This process can also be automated. Due to the short curing time The quick-reacting mixture can be practically immediately on the inner wall be checked for leaks after completion. The leak test can be done with a high voltage tester.

The cover layer can be made of the same synthetic resin mixture as that first plastic layer. It is preferably colored white in order to Make dirt clearly visible.

A water reservoir with an at least partially masonry existing containers for holding water, especially drinking water, has at least on the side walls of the container for masonry spaced inner wall arranged. The inner wall is by means of spacers spaced from the masonry in such a way that between the masonry and a cavity is formed on the inner wall. The inner wall is made up of a Spacer film having elevations or knobs, which at least on the inside with a first plastic layer made of a curable Resin is coated. There is a glass fiber reinforcement in the plastic layer or inserted a textile fiber mat. The first plastic layer can be used as a Covering serving second plastic layer may be coated. Aluminum mounting plastic wrap, Glass fiber fabric or textile fiber mat and Plastic coatings together form a tough composite of a thickness between 2 and 3 mm.

The inner wall structure shown in Figure 3 consists of a spacer fabric 47,48,49 made of plastic fibers. This knitted spacer has an inner Knitted surface 47, which extends from the outer knitted surface 48 via the pile threads 49 is spaced. The pile threads have a length of 5 mm. This distance defines the cavity 36 between the masonry 15 and the waterproof Plastic coating 37.41. Possible pile thread lengths are between 0.5 and 3 mm. The resilience of the pile threads decreases with increasing length and with increasing thickness and density. The thinner the cavity 36 is chosen, the greater is the risk of soaking the inner knitted fabric 47 with the plastic the cavity 36 is filled. Hence the inner Knitted surface 47 advantageously before installing the knitted fabric in the reservoir Plastic primed.

A glass mat 39 is placed on the inner knitted surface 47 and with a impregnated first plastic layer 37. On this glass fiber reinforced Plastic layer 37 is the cover layer 41 made of hygienic plastic applied.

The inner wall 17 is created with a spacer made of spacer fabrics analogous to an inner wall with bubble film. First be on the masonry 15 sheets of the spacer fabric 47,48,49 attached. The inner knitted surface 47 is advantageously impregnated with a plastic and therefore essentially already liquid-tight. The spacer fabrics are on the masonry 15 advantageously laid in such a way that the edge areas of the webs are aligned overlap. It can the outer knitted surface 48 and the pile threads 49 in Region of the overlap on a web to be cut off. The Overlap zones and the edges are then preferably additional covered in order to prevent the later sprayed-on resin mixture from penetrating into the existing between the inner knitted surface 47 and the masonry 15 To prevent cavity 36. Once the masonry 15 on the floor and at the Side walls are covered with spacer fabrics 47, 48, 49, the Multi-component resin mixture 37 sprayed. In the liquid Plastic is inserted into the glass fleece and pressed on with rollers. The glass fleece is then soaked with plastic. After the first plastic layer has hardened 37, the second plastic coating 41 is sprayed on, which the later with surface in contact with water.

Legend:

11th

water reservoir

13

container

15

masonry

17

inner wall

19

inlet

21

outlet

23

cleaning ports

25

Overflow pipe

27

Opening the overflow nozzle 25

29

Ceiling of the container

31

ladder

33

Distance wrap

35

Elevations or pimples

36

cavity

37

first plastic layer

39

Glass fiber fabrics

41

second plastic layer or top layer

43

test connector

45

upper edge of the inner wall 17

47

inner knitted surface of a spacer knitted fabric

48

outer knitted surface of a spacer knitted fabric

49

pile threads

Claims (22)

Method for the production and in particular for the renovation of a water reservoir with a container (13) consisting at least partially of masonry for holding water, in particular drinking water, in which method the masonry of the container (13) on the inside at least partially has a watertight inner wall ( 17) is provided at a distance from the masonry in such a way that a cavity (36) is formed between the masonry (15) and the inner wall (17), characterized in that a watertight hardening plastic layer (37, 41) fluidly onto a three-dimensional spacer (33, 47 , 48, 49) is applied, which spacing means (33, 47, 48, 49) is arranged adjacent to the inside of the masonry (15) and there is a permeable cavity (36) between the masonry (17) and the waterproof plastic layer (37 , 41). A method according to claim 1, characterized in that the spacing means (33,47,48,49) is in strips, several strips thereof are arranged side by side adjacent to the inside of the wall (15), and that joints between the individual strips with the plastic layer (37) and / or a second plastic coating (41) can be sealed. Method according to Claim 1 or 2, characterized in that a spacer film (33) having elevations or knobs (35) is provided as the spacing means (33, 47, 48, 49), the elevations or knobs of which bear against the masonry (15) and for formation a first plastic layer (37) is coated with at least one curable synthetic resin. Method according to claim 2 or 3, characterized in that the spacer film (33) is an aluminum knobbed film which is preferably laid in overlapping webs on the inside of the masonry (15). Method according to one of claims 3 or 4, characterized in that at least one glass fiber reinforcement (39) is applied to the spacer film (33), which is impregnated and coated with a hardenable synthetic resin. A method according to claim 1 or 2, characterized in that the spacing means is a three-dimensional spacer fabric (47,48,49) with two parallel knitted or wickerwork surfaces (47,48) held apart by pile threads (49), of which knitted fabric - Or wickerwork surfaces (47, 48) one arranged against the masonry (15) and the other is impregnated with a first plastic layer (37). Method according to one of claims 1 or 2, characterized in that a cardboard bubble film is used as the spacer (33). Method according to one of claims 1 to 7, characterized in that the spacing means (33, 47, 48, 49) is provided on the bottom and on the side walls of the container (13). Method according to one of claims 1 to 8, characterized in that the spacer means (33,47,48,49) with the waterproof plastic layer (37, 41) is arranged floating in the container (13). Method according to one of claims 1 to 9, characterized in that a second plastic layer (41) functioning as a cover layer is applied to the first plastic layer (37). Method according to one of claims 1 to 10, characterized in that the cavity (36) is made airtight with respect to the environment, so that the hardened plastic layer (37) can be checked for leaks by means of negative pressure. Water reservoir with a container (13) consisting at least partially of masonry (15), in particular for receiving drinking water, at least one inlet (19) for supplying water to the container and an outlet (21) for draining water from the container, and at least one waterproof layer provided on the inside of the container, in which water reservoir on the side walls of the container (13) a waterproof inner wall (17) is arranged at a distance from the masonry (15) such that a cavity between the masonry (15) and the inner wall (17) (36) is formed,
characterized in that there is a three-dimensional spacer (33,47,48,49) which is coated with a liquid (37,41) which is liquidly applied to the spacer (33,47,48,49) and which is hardened to make it watertight Forms plastic layer (37, 41), the spacing means (33, 47, 48, 49) is arranged adjacent to the inside of the masonry (15) and there there is a permeable cavity (36) between the masonry (15) and the waterproof plastic layer (37 , 41). Water reservoir according to claim 12, characterized in that the spacing means (33, 47, 48, 49) is in strips, several strips thereof are arranged adjacent to one another on the inside of the masonry (15), and that joints between the individual strips with the plastic layer (37) and / or a second plastic coating (41) are sealed. Reservoir according to claim 12 or 13, characterized in that the spacing means (33, 47, 48, 49) is a spacing film (33) having elevations or knobs (35) which is connected to the masonry (15) with the elevations or knobs (35). abuts and is coated at least on the inside with a first plastic layer (37) made of a hardenable synthetic resin. Reservoir according to claim 14, characterized in that the spacer film (33) is an aluminum knob film, which is preferably primed on both sides. Reservoir according to one of claims 12 or 13, characterized in that the spacing means (33) is made of cardboard. Reservoir according to one of claims 12 or 13, characterized in that the spacing means is a three-dimensional knitted spacer fabric (47, 48, 49) with two parallel knitted or wickerwork surfaces (47, 48) held apart by pile threads (49) Which knitted or wickerwork surfaces (47, 48) are arranged so that they rest against the masonry (15) and the other is impregnated with a first plastic layer (37). Reservoir according to one of claims 12 to 17, characterized in that the spacing means (33, 47, 48, 49) is provided on the bottom and on the side walls of the container (13). Reservoir according to claim 18, characterized in that the upper edge (45) of the waterproof plastic layer (37, 41) is connected airtight to the masonry (15) and an externally accessible test nozzle (43) in the between the masonry (15) and Inner wall (17) existing cavity (36) protrudes. Reservoir according to one of claims 12 to 19, characterized in that the plastic layer (37) is reinforced with a fiber reinforcement (39). Reservoir according to one of claims 12 to 20, characterized in that a second cover layer (41) is provided on the first plastic layer (37) to form a second uninterrupted smooth surface. Reservoir according to claim 21, characterized in that the first and second plastic layers (37, 41) together have a layer thickness between approximately 1 and approximately 5 mm, preferably between 1.5 and 3 mm.

Images