CN102967918B - Novel solar light-condensation disc - Google Patents

Abstract

The invention discloses a new type of solar concentrating disc, which comprises a back plate, a reflective curved panel, radial ribs, circumferential ribs, adhesive glue, edge sealing and mounting bolts, and the surfaces of the reflective curved panel and the back plate are passed through the adhesive glue Bonding, the back of the back plate is fixedly connected with radial ribs and circumferential ribs, the radial ribs include edge radial ribs and inner radial ribs, and the circumferential ribs include edge circumferential ribs and inner circumferential ribs, the reflective There is also an edge sealing between the peripheral edge of the curved plate and the edge circumferential rib and edge radial rib of the back plate. Mounting bolts for the concentrating discs are also provided at the intersection of the inner circumferential ribs and the inner radial ribs. The invention has light weight, low production cost and easy realization of large-scale production.

Description

New solar concentrating disc

technical field

The invention relates to a solar concentrating disc.

Background technique

The solar concentrating disc is a component of the solar concentrating device. The solar concentrating device uses multiple discs to install together to form a precise circular reflective curved plate. The sunlight shines on the reflective curved plate. These reflective curved plates Focus the light on a focal point, and heat the object at the focal point to a very high temperature. The traditional solar concentrating disc is designed and manufactured with a whole stamping part, which has high production cost, heavy weight, and is limited by the cost of the mold. Reflective disc Sheet can not be done very big, especially the reflective disk manufacturing cost of giant single sheet is very high and can't realize.

Contents of the invention

The object of the present invention is to provide a novel solar concentrating disc with light weight and low production cost.

In order to achieve the above purpose, the technical solution of the present invention is: a solar concentrating disc, including a back plate, a reflective curved panel, radial ribs, circumferential ribs, radial flanging, circumferential flanging, adhesive glue, sealing Side and mounting bolts, the surface of the reflective curved panel and the back plate are bonded by adhesive glue, and the back of the back plate is fixedly connected with radial ribs and circumferential ribs. The radial ribs include edge radial ribs and internal radial ribs and Radial flanging, circumferential ribs include edge circumferential ribs, internal circumferential ribs and circumferential flanging, and there is also a set between the peripheral edge of the reflective curved panel and the edge circumferential ribs and edge radial ribs of the back plate With edge banding.

The edge sealing is L-shaped, one side is bonded to the edge of the reflective curved panel, and the other side is bonded to the edge circumferential ribs and edge radial ribs of the back plate.

Another form of the edge banding is that it is fixedly connected to the edge circumferential rib of the back panel, extends toward the reflective curved panel, and is bonded to the reflective curved panel.

The backboard is a fan-shaped curved surface. Such a plurality of fan-shaped surfaces can be spliced into a nearly circular or circular curved surface. The radial ribs are connected with radial flanges; the circumferential ribs are connected with circumferential flanges. The back is also fixedly connected with mounting bolts, and there are at least three mounting bolts on one back plate.

One end of the mounting bolt has a triangular support rib and an insertion slot, and the insertion slot is connected to the corresponding inner radial rib and inner circumferential rib.

The backboard is made of materials such as stainless steel plate, aluminum plate or galvanized plate.

The reflective curved panel is made of silver-plated glass plate, reflective metal plate and the like.

The adhesive glue between the reflective curved panel and the back panel is polyvinyl butyral. .

After adopting the above structure, due to including the back plate, reflective curved panel, adhesive glue, radial ribs, circumferential ribs, edge banding and fixing bolts, there are radial ribs and circumferential ribs on the back of the back plate, through the radial ribs And the circumferential ribs replace the existing whole board manufacturing technology, the weight is reduced, and it can be manufactured without die stamping, which reduces the production cost, and the surrounding edges of the reflective curved panel are connected with the circumferential ribs and the edge of the back plate There is also an edge seal between the radial ribs on the edge, which can prevent rainwater from penetrating into the reflective curved panel and the back panel to affect the bonding of the two, improve the weather resistance and service life of the present invention, radial flanging and The function of the circumferential flanging is to strengthen the rigidity of the radial rib and the circumferential rib.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is A-A sectional view of Fig. 1;

Fig. 4 is a diagram of another embodiment of the edge banding in Fig. 3;

Fig. 5 is a schematic structural view of the backplane in Fig. 1;

Fig. 6 is a perspective view of mounting bolts;

Fig. 7 is a diagram of the use state of the present invention.

Detailed ways

The present invention is described in further detail below in conjunction with the embodiment that accompanying drawing provides.

As shown in Figures 1 to 6, a new type of solar concentrating disc includes a back plate 1, a reflective curved panel 2, radial ribs 1-1, radial flanges 1-1-3, circumferential ribs 1-2 and Circumferential flanging 1-2-3, adhesive glue 3, edge banding 4 and mounting bolt 5, the surface of reflective curved panel 2 and backboard 1 are bonded by adhesive glue 3, and the back side of backboard 1 is fixedly connected with Radial rib 1-1 and circumferential rib 1-2, radial rib 1-1 includes edge radial rib 1-1-1 and inner radial rib 1-1-2, circumferential rib 1-2 includes edge circumference Ribs 1-2-1 and internal circumferential ribs 1-2-2, the peripheral edges of the reflective curved panel 2 and the edge circumferential ribs 1-2-1 and edge radial ribs 1-1 of the back plate 1 There is also an edge banding 4 between -1.

Referring to Figures 3 and 4, the edge banding 4 is L-shaped, and one side is bonded to the edge of the reflective curved panel 2, and the other side is bonded to the edge circumferential rib 1-2-1 and the edge diameter of the back plate 1. to the rib 1-1-1; or the edge banding 4 is fixedly connected to the edge circumferential rib 1-2-1 and the edge radial rib 1-1-1 of the backboard 1, and to the reflective curved panel 2 Extend and bond with the reflective curved panel 2. During installation, the backboard 1 and the reflective curved panel 2 are bonded together, so rainwater or dirt will penetrate into the adhesive layer, thereby affecting the fastness of the adhesive layer, and then affecting the service life of the present invention. The main function is to prevent rainwater or dirt from penetrating into the adhesive layer during use and improve the service life of the invention. The edge sealant can use neutral silicone or low moisture permeability, aging resistance, colorless and transparent protective coating BD101, BD102.

Referring to Figures 3, 4, and 6, the backboard 1 is a fan-shaped curved surface, and the back side of the backboard 1 is also fixedly connected with radial ribs 1-1 and circumferential ribs 1-2, and the radial ribs 1-1 are connected There are radial flanges 1-1-3, circumferential ribs 1-2 are connected with circumferential flanges 1-2-3, the back of the back plate 1 is also fixedly connected with mounting bolts 5, and one piece of back plate 1 There are at least three mounting bolts 5; one end of the mounting bolt 5 has a triangular support rib 5-1 and an insertion groove 5-2, and the insertion groove 5-2 is connected to the corresponding inner radial rib 1-1-2 and the inner The circumferential ribs are installed in 1-2-2. Circumferential ribs 1-2 can well improve the rigidity, strength, impact resistance and fatigue properties of backplane 1. Mounting bolts 5 are used to securely connect the concentrating discs to the concentrating frame 6 during installation. The mounting bolts 5 The insertion slot 5-2 can be well positioned and fixed, increasing the connection strength between the mounting bolts 5 and the concentrating discs. The quantity and distribution positions of the mounting bolts 5 are determined according to the size and shape of each concentrating disc. There are at least three indivual.

Referring to Figures 2, 3 and 4, the backboard 1 is made of materials such as stainless steel plate, engineering plastics, aluminum plate or galvanized plate; it has high rigidity and light weight.

Referring to Figures 1 and 2, the reflective curved panel 2 is made of silver-plated glass, reflective film, reflective metal plate and the like. It is used to reflect the sunlight and focus the sunlight on one point.

Referring to Figures 2, 3 and 4, the reflective curved panel 2 and the back panel 1 are bonded by polyvinyl butyral, which improves the bonding strength and thus prolongs the service life.

Referring to Fig. 7, when the present invention is used, the backboard 1 can be made into a special curved surface such as an overall quadratic surface, and then a plurality of reflective curved panels 2 are bonded on the backboard 1, covering the surface of the backboard 1, and the backboard 1 During processing, select a plate, and then fix and connect the circumferential rib 1-2 and the radial rib 1-1 on the back, and the internal circumferential rib 1-2-2 can adopt a variety of structures such as transverse, M-shaped or rhombus. The function of the ribs 1-2 is very important in the process of concentrating light. It can ensure the geometric shape accuracy of the reflective curved panel 2 during processing and use. Through the inner radial ribs 1-1-2 and the inner circumferential ribs 1-2- 2. The shape of the curve at the junction with the back plate 1, forming and maintaining the accuracy of the geometric shape of the reflective curved plate 2, so as to ensure that the light can be accurately focused on a focal point; in the case of processing errors, the radial rib 1-1 and the surrounding The connection between the ribs 1-2 and the back plate 1 can be provided with a gap for adjusting the shape accuracy of the reflective curved panel 2, and the gap is filled by filler or solder to increase the mechanical properties of the connection. The invention can be used not only for dish solar thermal power generation, but also for solar cookers, and can also be used for the manufacture of solar tower heliostats and solar trough collectors. Its structure is in the form of a frame, which can easily meet the requirements of high-precision concentration , light weight, low production cost and easy to form mass production.

Claims (4)

1. A solar concentrating disc, characterized in that it includes a back plate (1), a reflective curved panel (2), radial ribs (1-1), circumferential ribs (1-2), adhesive glue (3 ), edge banding (4) and mounting bolts (5), the surface of the reflective curved panel (2) and the back panel (1) are bonded by adhesive glue (3), and the back of the back panel (1) is fixedly connected with a diameter radial ribs (1-1) and circumferential ribs (1-2), radial ribs (1-1) include edge radial ribs (1-1-1) and inner radial ribs (1-1-2), The circumferential ribs (1-2) include edge circumferential ribs (1-2-1) and internal circumferential ribs (1-2-2), and the surrounding edges of the reflective curved panel (2) are connected to the back plate (1 ) between the edge circumferential ribs (1-2-1) and the edge radial ribs (1-1-1) are also provided with edge banding (4); the edge banding (4) is L-shaped, bonded on one side At the edge of the reflective curved panel (2), the other side is bonded to the edge circumferential rib (1-2-1) and edge radial rib (1-1-1) of the back plate (1); the seal The edge (4) is fixedly connected to the edge circumferential rib (1-2-1) and the edge radial rib (1-1-1) of the back plate (1), and extends toward the reflective curved panel (2), and is connected with The reflective curved panel (2) is bonded; the back panel (1) is a fan-shaped curved surface, and radial flanges (1-1-3) are connected to the radial ribs (1-1); the circumferential ribs (1-2 ) is connected with a circumferential flange (1-2-3), and the back of the back plate (1) is also fixedly connected with mounting bolts (5), and there are at least three mounting bolts (5) on a back plate (1) ; One end of the mounting bolt (5) has a triangular support rib (5-1) and an insertion groove (5-2), and the insertion groove (5-2) is connected to the corresponding inner radial rib (1-1- 2) Connect with the inner circumferential rib (1-2-2). 2. The solar concentrating disc according to claim 1, characterized in that: the back plate (1) is made of stainless steel plate, aluminum plate or galvanized plate. 3. The solar concentrating disc according to claim 1, characterized in that: the reflective curved panel (2) is made of silver-plated glass plate or reflective metal plate. 4. The solar concentrating disc according to claim 1, characterized in that: the adhesive (3) used for the reflective curved panel (2) and the back panel (1) is polyvinyl butyral.