CZ27249U1 - Two- or multishell fiberglass system with continuous monitoring of tightness - Google Patents

Description

Technical field

The technical solution concerns immediate, continuous and remote evaluation of the condition of the floor and walls of the building - damage, failure or fatigue of the material, causing the leakage of the substance in the building located in the surroundings, the tightness, respectively. bottom and wall leaks.

Background Art

At present, especially protective systems are applied in the form of paints and coatings on the walls and bottom of the tanks (steel, concrete or reinforced concrete), or the escape of the media tanks with two steel shells, without indication of leakage. For existing technical solutions, intellectual property is protected by the following patents:

EP 1 033 440 - Leakproof flooring and process of making the same, filed and registered March 3, 2000 in the Czech Republic under the trademark PV 2000-796. A watertight floor covering, particularly for refueling stations for refueling and liquids endangering the environment, has a mechanically bonded, watertight and film-resistant sealing layer in the form of a film and a mechanically wearable surface layer attached thereto.

b. EP1 426 528 - Water reservoir, as well as a procedure for its production or reconstruction, filed and registered on December 5, 2003 in the Czech Republic, under the trademark 2003-405870. The masonry reservoir, especially drinking water, has a protective layer, a spacer layer and a top layer. No vacuum detection.

c. PV 1996-2091 - Double-walled tank and method of its production, filed and registered July 15, 1996 under the registered trademark PV 1996-2091. The double-walled tank, in particular for storing oil or gasoline, has an outer wall which is formed by a spread foil and an elastomer layer.

The essence of the technical solution

The object in which the technical solution is applied is any device that serves primarily for the storage of hazardous substances or substances endangering the environment or the operator. In practice, these are mostly tanks of various types, volumes, shapes, purposes of use and made of different materials.

The technical solution described here is able to evaluate the leak tightness and / or leakage in each tank, tank, or vessel continuously and continuously in every second and allows the operator or operator of the monitored equipment to react immediately to an unusual or dangerous situation.

The technical solution described will ensure:

mechanical properties, in particular strength, elasticity, ductility, at least to withstand the overpressure or negative pressure exerted on it by the surrounding environment, in particular tensile strength, elastic ductility, plastic ductility, compressive strength

b. Airtightness or gas-tightness to allow measurement, measurement, and measurement to be made by sound, optical, and / or direct mechanical output based on a change in vacuum magnitude, to trigger a subsequent safety measure

c. Chemical stability, including with regard to the chemical environment of different chemicals depending on the medium stored

d. formability so that it can be crafted into all corners, corners and details in the details of the equipment to be guarded where its function is to be secured

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e. easy to apply to all surfaces and environments on which it is to be applied and in which it is to be both designed and manufactured and operated.

f. safety in both application and operation of the equipment.

Drawing clarification

FIG. 1 depicts the composition of layers of double-skinned fiberglass lining by showing a cross-section with individual layers.

The layers are sorted from the bottom backing material (1) as follows:

- (1) The bottom or wall of the tank, which is blast cleaned to a solid even substrate

- (2) Bottom or tank wall, where the unevenness is leveled with silica sand

- (3) Solvent-based penetration primer to form an even layer for coating

- (4) Woven mat lamination, saturated resin and diluent

- (5) Laminating with a nonwoven mat, saturated resin and diluent

- (6) Laminating with a nonwoven mat, saturated resin and diluent

- (7) Sealer (spray) with diluent resin

- (8) Resin coating (solvent spray) with solvent that closes the primary layer

- (9) Vacuum interspace

- (10) Profiled spacing metal layer whose pressure conditions are controlled by detection devices

- (11) Woven matting with resin and diluent

- (12) Laminating with a nonwoven mat, saturated resin and diluent

- (13) Resin coating (resin) with diluent that closes the secondary layer

- (14) Antistatic coating.

Depending on the safety requirements (in case of reduced safety requirements) the designer can omit positions 5, 6, 8, 12, 14.

Exercise example

Fiberglass system

The fiberglass system consists of primary, secondary, tertiary or other layers, as required by safety, mechanical and physico-chemical resistance. Individual layers (primary, secondary, tertiary) can be combined and multiplied. Increase safety and operational reliability, respectively. resistance, is provided by doubling (trimming, etc.) of the items entitled "Laminating with Nonwoven Mat with Resin and Thinner", "Closure Coating (Spray) with Resin and Thinner", see Drawing No. 1.

b. Surfaces

The surfaces of reservoirs of casks, pools, etc. for the application of the described system, they can be concrete, both of plain concrete, of reinforced concrete, and of prestressed reinforced concrete. The described technical solution can also be applied to steel, cast iron or other materials, on which the fiberglass layer can be adhered with sufficient strength.

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c. Surface Treatment

On the above-mentioned surfaces, a primary fiberglass layer is applied, which serves to repair, level, and above all seal the surface. The surface on which the fiberglass layer is to be applied (position 1 - drawing no. 1) must be free of dust, dirt, loose or crumbly pieces of concrete (in case of application on concrete, reinforced concrete or similar surfaces). It is preferable to blast both concrete and steel surfaces with either quartz sand or steel sharp grit to create an acceptable anchor relief that ensures a very thorough resin flow and firm adherence of the fiberglass mat.

d. Surface penetration

Surfaces can also be repaired after blasting (position 2 - drawing 1), especially in cases where very deep scratches, caverns or concrete aggregate appearance occurred in the case of blasting (in case of application on concrete, reinforced concrete or similar surfaces). Such alignment is carried out by so-called resin penetration with sufficient viscosity to flow into all pores and crevices (position 3 - drawing no. 1). After the penetration is applied, it is necessary to test the adhesion of the penetration layer to the surface to be repaired and to compare it with the normative requirements on the adhesion of substances to the surface.

e. Primary fiberglass layer

After repairing and penetrating the reinforced concrete or steel substrate, it is possible to continue to produce the primary layer, which is a fiberglass woven mat saturated with resin and diluent (position 4 - drawing no. 1) and other layers (positions 5 to 6 - drawing no. 1). The number of layers is governed by the requirements for safety and mechanical properties, in the above mentioned drawing No. 1 there are 2 additional layers.

i. Primer of the primary fiberglass layer

First, a fiberglass woven mat with a resin and a thinner (position 4 - drawing no. 1) is glued to a clean penetrated substrate (see 2d), then the mat is turned off, leveled and saturated with resin and vented to form a gas-tight surface. In addition to tightness, this mat guarantees strength in all directions and therefore the correct choice of weaving and grammage of fiberglass fabric is required. After curing, the surface (depending on the design and process technology) of the cured layer is eventually ground and a random spot for leak test, adhesion and mechanical strength and ductility tests is selected.

ii. Other parts of the primary fiberglass layer

Subsequent portions of the primary fiberglass layer of non-woven fiberglass matted with resin and diluent may then be applied to the base (fiberglass woven mat with resin and diluent) depending on the safety requirements and mechanical stresses of the structure. As a result, the primary layer may be formed by a base portion with a plurality of other (usually two) up to seven or more layers of resin and diluent-carbonated woven mats that form a smooth, strong, and above all tight layer on the tank surface to prevent the media from penetrating, so inside.

However, the above-mentioned application of the primary fiberglass layer only increases the quality and physico-mechanical properties of the structure of the building in or on which it has been applied, increases its safety, but in case of failure of the structure of the building it is possible that the primary layer will fail and hence the primary layer stuck on the surface of the object is only the first step.

iii. The closure portion of the primary layer

The closure part of the primary layer (positions 7 to 8 - drawing no. 1) is formed by the spray coating (paint) with the diluent. The closure part can be formed by one or more coatings (paints) again according to the specific task and project.

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f. Secondary layer

The second major step is the application of the so-called secondary layer. This layer forms a space between the primary layer and the medium in the tank (interspace, position 9 - drawing no. 1), the pressure conditions of which can be controlled by the detection devices. It is therefore the creation of an interspace from which it is possible to extract air, or to create a safe degree of vacuum, which will be kept permanently in the space, and it will be possible to increase, decrease, measure, transmit to data equipment and evaluate it. Changes in pressure conditions (vacuum) then indicate a non-standard condition.

The secondary layer ensures sufficient strength, flexibility and tightness so that the stored medium is safely monitored by vacuum and bounded by a guarded interspace. This layer must safely transfer all loads from self-weight, from stored media as well as from random static or dynamic events that may occur during the lifetime of the structure or the guaranteed period. The advantage of the relatively lightweight fiberglass is, above all, the fact that it can be applied in virtually all positions, and is thus applicable not only to the bottom of tanks and tanks, but also to walls and ceilings of any equipment and shapes.

The secondary layer consists of a spacer layer, which is usually a steel or aluminum foil with small projections (position 10 - drawing no. 1) and layers of fiberglass woven and nonwoven mat saturated with resin and thinner (positions 11 to 12 - drawing no.). The protrusions of the steel or aluminum foil ensure the formation of an interspace (position 9 - drawing no. 1) by the fact that the other fiberglass layers above the secondary layer only touch the primary layers on a negligibly small surface, so that a sufficiently large space is created for the presence of vacuum and air flow throughout the area to be inspected.

i. Secondary layer backbone

The base part of the secondary layer is laid directly on a steel or aluminum foil and consists of a fiberglass woven mat, saturated with resin and diluent. Application procedure, number of other parts of this layer is similar to the primary layer (see 2e).

ii. Other parts of the secondary layer

The number of other fiberglass parts of the secondary layer - non-woven fiberglass mats saturated with resin and thinner (position 12 - Drawing No. 1) again meets the requirements for the safety, mechanical and physico-chemical resistance of the project. Application procedure, number of other parts of this layer is similar to the primary layer (see 2e).

iii. Secondary coating closure

The secondary coat closure (position 13 - drawing no. 1) is similar to the primary coat (see 2e) consisting of resin and diluent.

g. Tertiary layer

The tertiary layer can then be applied to the secondary layer consisting of special coatings according to the stored medium and the client's requirements. the designer.

For antistatic or other special protection, especially chemical protection, special protective preparations can be applied to the secondary layer (position 14 - Drawing No. 1) according to the specific project and the order of the client or designer. In particular, it may be antistatic protection, a protective coating with a particular chemical resistance, depending on the type of medium in which it will be in contact. It is, of course, also possible to form the entire repetitive primary and secondary layers to increase the safety multiple times, and to create a double vacuum space above each other and to apply a tertiary layer over this repetitive secondary layer.

h. Monitoring of secondary layer pressure conditions

The space created by the spacer layer is vacuumed to a certain vacuum value. This interspace can be divided into several sections or sections to measure and evaluate pressure conditions and tightness

-4C 27249 Ul in the parts - sections of the controlled unit. A separate pipe line to the measuring and evaluation equipment is led out of each monitored section.

The technical solution is described conceptually with a description of the individual layers that can be repeated and combined. For each specific project or for each given assignment of the client and designer in terms of safety, size, storage media, etc., a particular structure of the entire system will be designed. At the same time, a static assessment of independent and co-operating structures and individual layers will be developed, and a design will be created in terms of the number of necessary layers for securing the device. Also, chemical resistance to the contact environment will be assessed.

Attachment

Drawing No. 1. - Double or multi-layer fiberglass system with continuous leak monitoring - cross section

Claims (3)

PROTECTION REQUIREMENTS Double or multi-shell fiberglass system with continuous leak monitoring, characterized in that it consists of several layers of resin-coated fiberglass and a diluent which form a primary layer, and a secondary spacer layer with protrusions, wherein between the secondary layer and the primary layer is an interspace whose pressure conditions are controllable by means of detection devices. 2. The continuous or continuous sealed fiberglass system according to claim 1, wherein the secondary layer is supplemented with resin and diluent fiberglass layers. Double or multi-skinned fiberglass system with continuous leak monitoring according to claim 1 or 2, characterized in that the number of individual layers of resin-and-solvent-coated fiberglass is multiplied to form a gas-tight primary and secondary layer to prevent media penetration through the layer and meet safety requirements .