PT106557B - COMPOSITE PROFILE FOR SOLAR COLLECTOR, EFFECTIVE METHOD OF PRODUCTION AND USE - Google Patents

Abstract

The present application describes a composite profile for a solar collector which has two base perpendicular ribs that are attached to it at their opposite ends on opposite sides. This profile can be assembled into a structure of the modular multi-functional cabinet comprising glass (7) with an U-profile of the structure of the modular multi-functional cabinet for solar collectors (8), top of the structure of the modular multi-functional cabinet for solar collectors SCREWS FOR CONNECTING TO STRUCTURE REINFORCING TUBES (11). THIS COMPOSITE PROFILE IS ESPECIALLY ADVANTAGEOUS AS IT IS PRODUCED THROUGH AN EXTRUSION PROCESS, WITH REDUCTION OF THE ENERGY LOSSES OF THE SOLAR COLLECTOR DUE TO DESIGN WITH ALVEOLAR PROFILE, EASY PORTABILITY DUE TO WEIGHT REDUCTION PER SQUARE METER PANEL, USE OF RECYCLABLE COMPOSITES IN THE ITS COMPOSITION, REDUCTION OF THE MONITORING TIMES OF SOLAR COLLECTORS, ELIMINATION OF THE NEED FOR PLACEMENT OF ADDITIONAL ISOLANTS TO THE MODULAR BOX AND REDUCTION OF PRODUCTION COSTS.

Description

Composite profile for solar collector, its method of production and use

Domain of Invention

The present invention provides a novel method for producing the modular housing for solar collectors for domestic or industrial water heating by the extrusion process. This invention further describes a new thermoplastic profile shape obtained in a single step of said extrusion process.

This invention also describes a final formulation incorporating used tire rubber granules in its composition because of its excellent properties for the intended application, and is also an environmentally beneficial solution.

Background of the invention

There is wide acceptance, almost universal, of the opportunity to use solar energy to heat water for domestic or industrial use. It is a renewable energy source and reduces dependence on electrical energy that is produced through non-renewable energy sources.

The use of solar collectors has been increasing in recent years due to widespread awareness of the destructive effects on the environment of using conventional forms of energy. Solar collectors are used to collect energy from incident solar rays and convert them into a reusable form. Water heating by the use of solar collectors has been one of the most viable applications of use, residential and lately at industrial level. In a residential application, solar panels are often used to provide the energy for heating the water to be used at home and / or in pools. In industrial applications they are often used to provide heat input to the water used in certain processes.

Solar panels of the indicated type have long been known. During the 70s and 80s of the last century and through the intense debate on energy consumption and the need to find renewable energy, a number of solutions were developed. Solar collectors consist of one or more units that are connected to a circuit that transfers heat energy through a thermal fluid, such as water or air, to the place of use. These collectors are furthermore made up of copper absorbent tubes and generally copper or aluminum absorbent plate, enclosed by a glass plate and thermally insulated by glass wool. In its conventional construction, the collector is heavy and its handling to place it on the roof or in a place of good sun exposure is complex due to the use of heavy metal surrounding structures and mineral wool insulation elements.

CN201819454 discloses a profile for solar collector which comprises a profile with a rectangular section and its cover mounted at one end of said profile with two semi-closed cavities for mounting glass covers on each of the corresponding sides forming a shape. bilateral symmetrical between the upper body period of the profile and the cover. However, this document does not anticipate a configuration in which side flaps are perpendicular to the base, attached to it at its ends, nor

use of materials profile. composites at the manufacture of that 0 document EP1284396 features one solar collector in tubular shape that understand one reflector with an surface functional formed per a leaf whose stability so is maintained using a substrate with

an appropriate profile. However, this document does not anticipate a configuration utilizing perpendicular side flaps to the base joined to it at its ends, nor the use of composite materials in the manufacture of said profile.

Summary of the Invention

The present invention discloses a composite solar collector profile having two lateral flaps perpendicular to the base which are joined thereto at opposite ends.

In a preferred embodiment, the solar collector composite profile has holes in the side flaps and base thereof.

In another preferred embodiment, the solar collector composite profile has L-shaped wells.

In yet another preferred embodiment, the solar collector composite profile has two flaps perpendicular to the base and joined thereto at opposite ends.

In a preferred embodiment, the solar collector composite profile has a stepped gap at the upper end and at least one slot in the inner part.

In another preferred embodiment, the composite solar collector profile has reinforcing tubes in the frame.

The present invention further describes a method for obtaining the solar collector composite profile comprising the following steps:

Composite profile components simultaneously or sequentially enter the extruder;

- Mixing, plasticization, pressurization and homogenization process;

- Passage in the profile calibrators incorporated with the vacuum and cooling system;

- Passing through the cutting system.

In a preferred embodiment, the method for obtaining the solar collector composite profile has a processing conducted in a temperature range between 165 ° C and 350 ° C.

In yet another preferred embodiment, the method for obtaining the solar collector composite profile includes the use of components comprising the following formulation:

- 10% - 45% of tire rubber granules;

- 4% - 25% of additives;

- Remaining percentage of polymeric matrix.

The present invention further describes the use of the thermoplastic profile in modular multifunctional housings for solar water heaters for domestic or industrial use.

General Description of the Invention

The present invention provides a method for producing the modular housing for solar collectors for domestic or industrial water heating by the extrusion process, as well as the profile shape for the modular housing of said solar collector.

The invention further describes a final formulation incorporating tire rubber granules used in the composition of the obtained profile.

Given the above state of the art, a modular solar collector housing has been developed specifically with a new extruded shape which overcomes the aforementioned problems as well as benefits that have not been possible so far, namely:

• Reduction of production costs;

• Improvement of thermal insulation and consequently decrease of solar collector energy losses during its use;

• Production of a solution whose weight allows for easy portability and easy handling;

• Production by the extrusion process;

• Reduction of assembly times of solar collectors;

• Elimination of the need to install additional insulators to the modular box;

• Use of a composite that can use recycled used tire rubber in its composition, which in turn contributed other advantages such as:

Good weather resistance; Good UV resistance; Good impact resistance; o Good insulating ability; o Use of recycled raw materials.

Brief description of the figures anoint in achievements intended

For an easier understanding of the invention, the accompanying figures are preferred of the invention which, however, does not limit the scope of the present invention.

Figure 1 depicts a U-profile structure of the modular multifunction solar collector housing, where reference numerals represent:

A - Side flaps of the structure;

B - Structure base;

- Structure reinforcement pipes;

- L-shaped insulation pits

- Unevenness or groove to accommodate the glass;

- Slot to accommodate the absorbent plate;

- Support ribs for absorbent plate backing;

- Insulation alveoli.

Figure 2 is a U-shaped structure of the modular multifunctional box with absorbent plate and glass, where the reference numerals represent:

- glass;

- U-profile of the modular multifunctional housing structure for solar collectors;

- Absorbent plate.

Figure 3 depicts a representation of the U profile tops of the modular multifunction box housing, where reference numerals represent:

- Tops of the modular multifunctional housing structure for solar collectors;

- Screws for connection to structure reinforcement pipes;

- Unevenness or groove to accommodate the glass;

- Slot to accommodate the absorbent plate.

Figure 4 depicts a representation of the complete U-shape assembly of the modular multifunctional housing structure with the absorbent plate with the tops of the housing structure with the glass, where reference numerals represent:

- glass;

- U-profile of the modular multifunctional housing structure for solar collectors;

- Tops of the modular multifunctional housing structure for solar collectors;

- Screws for connection to frame reinforcement pipes.

Detailed Description of the Invention

This invention relates to a new U-shaped profile for a modular multifunctional housing for solar collectors for domestic or industrial water heating to be produced in one step by the extrusion process.

U-shaped profile of the model multifunctional housing has been designed with a significant number of insulating wells (6) on the side flaps and base, which allows for better insulating capacities by increasing the thermal properties of the solar collector while reducing the amount of material. necessary in its manufacture and hence the total weight of the solar collector is smaller. On the side flaps of the U-profile, the L-shaped isolation pockets (2) and the base isolation pockets (6) are provided with frame reinforcement pipes (D ·

From different lengths of the U-profile structure, the tops can be placed at the ends to make the modular multifunctional box, which would form the basis for the construction of a solar collector. The tops of the modular multi-function solar collector housing (10) fit into this housing and are connected to it via the frame reinforcement pipes (1). The tubes that pass through the alveoli have the function of closing between the U-profile and the tops forming a cohesive structure.

The absorbent plate (9) is supported on the support ribs of the absorbent plate backrest (5) and fixed through slots to accommodate the absorbent plate (4) on the side flaps of the U-profile and the tops of the housing structure. Modular Multifunctional Module for Solar Collectors (10).

The glass (7) is placed over the U-profile of the modular multifunctional housing structure in a gap or slot to accommodate the sized glass (3).

In the modular multifunctional box, metallic or thermoplastic profiles can be placed to fix all the elements that make up the modular box, compacting the solar collector, protecting it from external agents and improving its handling.

Utilizing the development of formulations with incorporation of used tire rubber granules, new opportunities have been opened for the destination of recycled used tire rubber, but not limited to the use of these materials only.

Another object of the present invention is to obtain a formulation for intended application. Accordingly we can obtain a formulation that incorporates polymers (polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polybutylene tereflalate (PBT), polyethylene tereflalate (PET), among others), compatibilizing agents, virgin rubbers (SBR, NR, EPDM, among others), epoxy resins and used tire rubber granules allowing to obtain a final composite that gives the properties suitable for the application. This formulation incorporates used tire rubber granules due to its excellent properties for the intended application. The incorporation of the used tire rubber granulate comprises a range from 10% to 45%, preferably from 26% to 45% by weight of the final composition.

In the process of obtaining the thermoplastic profile, polymers, additives, for example compatibilizing agents and virgin rubbers, and tire rubber granules are added by means of gravimetric dosers. The materials are added sequentially to obtain better dispersion and homogenization of the composition, this sequence being optimized according to the desired final properties.

The U-profile of the solar collector's modular multifunction box passes the profile calibrators incorporated with the vacuum and cooling system. Subsequently with the pulling system the U-profile is pulled and then cut to the desired length.

This innovative solution, due to the intrinsic characteristics of the material used, allows for a low thermal conductivity modular multifunctional profile / housing, reducing energy losses. It also has suitable mechanical properties for this application. The use of this composite also has advantages such as good weather and UV resistance, impact resistance, good insulating ability and the ability to lighten the part.

In addition, the use of this material in this specific application includes the advantage of using recycled used tire rubber, making this collector more innovative.

Description of method of obtaining

The present description of the method of obtaining the composite profile is an exemplary embodiment and is not intended to limit the scope of the present invention.

The present invention relates to the development of a modular housing profile for a sanitary or industrial water solar collector obtained by the extrusion process using composites incorporating polymer rubber tire granules. This composite has the necessary requirements and the right skills and capabilities to replace the materials currently used in the production of conventional components (profile / box) for solar collectors in addition to solving existing problems.

For obtaining the U-profile, we may use, among others, a formulation with incorporation of used tire rubber granules between 10% - 45% fulfilling the properties suitable for this application. The composite to be extruded will comprise a range of 10 - 45 parts by weight of used tire rubber granulate and the weight balance of polymer matrix per 100 total parts by weight of used tire rubber granule and polymer matrix. The percentage of additives to be used should be from 4 to 25 parts per 100 parts by weight of the used tire rubber granule and polymer hue.

The present invention is illustrated with reference to the following example which will aid in understanding the present invention but cannot be construed as limiting it. All percentages described herein, unless otherwise specified, are by weight (mass). Temperatures are expressed in degrees Celsius, and composites processing is conducted in a temperature range of 165 ° C - 350 ° C.

EXAMPLE I 35% incorporation of used tire rubber granulate is obtained by the extrusion process according to table 1.

Table 1: Composite composition incorporating 35% used tire rubber granulate.

Components Percentage (%) Polymers (PE, PP, PBT, PET, PVC) 50 Used tire rubber granules 35 Additives (compatibilizing agents, virgin rubber) 15

The components are packed in the respective dosers and all are at room temperature.

The polymer and additive feeders are coupled to the extruder by simultaneously or sequentially entering the extruder. Prior to the addition of the used tire rubber granulate, these components are conveyed by the co-rotational twin-screw screw undergoing a softening and plasticizing process. The used tire rubber granulate feeder introduces the used tire rubber granulate into contact with the rest of the previously added compound and is subjected to a mixing, plasticizing, pressurizing and homogenizing process.

Subsequently, the U-profile of the solar collector exits into the die entering the profile calibrator, this process being under vacuum and cooling system to ensure that the gases that form do not interfere with the U profile so as not to deform it, and that cooling is much faster. Leaving the calibrator, the U profile through the pull and cut system is pulled and then, reaching the desired length, the U profile will be subjected to the cut system obtaining at the end the desired U profile for the multifunction box. modular.

The achievements among themselves. As further invention.

described herein are combinable claims which follow highlight particular embodiments of the

Claims (10)

1. Composite solar collector profile characterized in that it has two lateral flaps perpendicular to the base which are joined to it at their ends on opposite sides. Composite solar collector profile according to the preceding claim, characterized in that it has holes in the side flaps and their base. Composite solar collector profile according to the preceding claim, characterized in that the alveoli are L-shaped. Composite solar collector profile according to one of the preceding claims, characterized in that it has two flaps perpendicular to the base and joined to it at their ends on opposite sides. Composite solar collector profile according to one of the preceding claims, characterized in that it has a stepped gap at the upper end and at least one slot in the inner part. Composite solar collector profile according to one of the preceding claims, characterized in that it has reinforcement tubes in the structure. Method for obtaining the composite solar collector profile described in claims 1 to 6, comprising the following steps: - Composite profile components simultaneously or sequentially enter the extruder; - Mixing, plasticization, pressurization and homogenization process; - The profile passes the profile calibrators incorporated with the vacuum and cooling system; - Passing through the cutting system. Method for obtaining the composite solar collector profile according to the preceding claim, characterized in that the processing is conducted in a temperature range between 165 ° C and 350 ° C. Method for obtaining the composite solar collector profile according to Claims 7 and 8, characterized in that the components used comprise the following formulation: - 10% - 45% of tire rubber granules; - 4% - 25% of additives; - Remaining percentage of polymeric matrix. Use of the thermoplastic profile described in claims 1 to 6, characterized in that it is used in modular multifunctional housing for solar collectors for domestic or industrial water heating.