CN201954778U - Flat solar heat collector - Google Patents

Abstract

The utility model provides a solar panel heat collector, which belongs to the technical field of heat exchange elements. The utility model solves the problem that the sunlight intensity directly reaching the heat collecting plate is weakened due to the function of the protective cover of the existing solar flat plate heat collector, so that the heat collecting plate cannot fully absorb the solar energy. The solar panel heat collector comprises a base, the base has a concave cavity extending in the transverse direction, the surface of the concave cavity is provided with a heat insulating layer, and a plurality of tubular tubes are arranged on the bottom surface of the concave cavity on the thermal insulating layer As for the heat exchange tube, the port of the concave cavity of the base is covered with a layer of transparent glass, and the transparent glass and the port of the concave cavity of the base are fixedly connected together by bonding. Since the convex edge at the port of the base of the solar panel heat collector is bonded and fixed to the light-transmitting glass, and the corners are reinforced, the light-transmitting effect is good, and the structure is compact and the appearance is beautiful.

Description

A solar panel collector

technical field

The utility model belongs to the technical field of heat exchange elements, and relates to a solar panel heat collector.

Background technique

Solar water heaters make full use of solar energy resources, convert sunlight energy into heat energy, and heat water from low temperature to high temperature to meet the hot water use in people's life and production. Solar water heaters are composed of heat collecting tubes, water storage tanks and related accessories. The conversion of solar energy into heat mainly depends on heat collecting plates. The temperature of the surface of the heat collecting plate exposed to sunlight is high, and the temperature of the back side of the heat collecting plate is low. The water in the heat collecting plate will produce a temperature difference reaction. Using the principle of hot water floating up and cold water sinking, the water will generate microcirculation to achieve the effect of heating water. Purpose.

Traditional solar water heaters are open and installed on the roof, or hung on balconies or external walls, once the weather changes, the water heater will often be damaged unexpectedly. For example, when it rains, a large amount of hail is often entrained. When the hail exceeds a certain weight, the heat collecting tubes on the heat collecting plate will be broken, which will affect the efficiency of the water heater. If more than one heat collecting tubes are broken, the water heater will start. Less than the conversion of heat energy, reducing the service life of the water heater. And the water heater is installed on the roof, and it is difficult for people to find that the heat collecting tube is broken in time, so when using it, it will bring many troubles and unnecessary troubles to the user.

For this reason, people have proposed various solutions through long-term exploration, and some have also applied for a patent. For example, a Chinese patent discloses a light-transmitting protection device for vacuum glass tube solar collector plates [authorized announcement number: CN 2514272Y]. The plate is connected with the protection mechanism, and the protection mechanism is composed of the connecting piece on the frame of the solar collector plate and the light-transmitting protective cover. As long as the screws are loosened or tightened, the light-transmitting protective cover can be opened, which is convenient Repair and replacement parts.

Although the above protective device can prevent the heat collecting tube from being broken, when sunlight passes through the protective cover, the intensity of the sunlight directly reaching the heat collecting plate is weakened due to the effect of the protective cover, so that the heat collecting plate cannot fully absorb solar energy. . If this protective cover is used in insufficient sunlight weather, the purpose of utilizing solar energy to heat water cannot be achieved at all.

Contents of the invention

The purpose of this utility model is to provide a solar panel heat collector with high heat collection efficiency aiming at the above-mentioned problems existing in the prior art.

The purpose of this utility model can be achieved through the following technical solutions: a solar panel heat collector, comprising a base, the base has a concave cavity extending in the transverse direction, the surface of the concave cavity is provided with a heat insulation layer, A plurality of tubular heat exchange tubes are arranged on the bottom surface of the concave cavity on the heat insulation layer, and it is characterized in that, the port of the concave cavity of the base is covered with a layer of transparent glass, and the transparent glass and the concave cavity of the base The ports are fixed together by bonding.

In the above-mentioned solar panel heat collector, the port of the concave cavity of the base has a convex edge protruding outward, the edge of the above-mentioned light-transmitting glass is attached to the convex edge, and there is a gap between the convex edge and the light-transmitting glass. with glue. The outer convex edge of the concave cavity of the base is bonded to the light-transmitting glass, which does not occupy the space of the concave cavity, and can ensure that the sunlight fully passes through the light-transmitting glass and irradiates into the concave cavity.

In the above-mentioned solar panel heat collector, the glue is UV glue. The curing time of UV glue is short, and it can reach high strength after ultraviolet radiation. The installation is quick and the adhesion is durable and firm. UV glue is shadowless glue or ultraviolet glue.

In the above-mentioned solar panel heat collector, there are several concave glue-accommodating grooves on the raised edge. The glue groove is hemispherical. When pouring UV glue, you can accurately grasp the location and amount of glue, so that the light-transmitting glass and the convex edge of the concave cavity can be accurately bonded.

In the above-mentioned solar panel heat collector, the glue-receiving grooves are evenly distributed on the convex edge. Glue-receiving grooves can be set at the four corners and the periphery of the rectangular convex edge, so that the transparent glass can be bonded more firmly.

In the above solar panel heat collector, there is a heat conduction plate between the heat insulation layer and the transparent glass, and the above heat exchange tubes are connected to the heat conduction plate. The heat conduction plate is a copper plate and has a blue titanium treatment layer on the surface of the copper plate.

In the above solar panel heat collector, corners of the translucent glass are provided with wrapping angles, and the corners of the translucent glass and the corners of the convex edge are wrapped by the corners. The two sides of the wrapping angle form a right angle, and the intersection is arc-shaped, which is used to protect the edges and corners of the light-transmitting glass and the edges and corners of the convex edge, so that the edges and corners can be treated with obtuse angles.

In the above-mentioned solar panel heat collector, the transparent glass is rectangular, and the four corners of the transparent glass all have wrapping angles.

In the above-mentioned solar panel heat collector, the wrap angle is made of plastic material. Wrapped corners made of plastic are low cost and durable.

In the above-mentioned solar panel heat collector, the material of the heat insulation layer is foamed plastic. The heat insulation layer made of foam plastic has the advantages of low cost, simple processing, excellent elasticity, and good heat insulation performance.

In the above-mentioned solar panel heat collector, the heat insulation layer is a mineral wool product. Mineral wool is an excellent thermal insulation material, which has the advantages of being non-combustible, non-mildew, and not easy to deform.

In the above solar flat panel heat collector, the heat exchange tubes are heat pipes. The inside of the heat pipe mainly relies on the vapor-liquid phase change of the working liquid to transfer heat, and the thermal resistance is very small, so it has a high thermal conductivity.

Compared with the prior art, this solar panel collector has the following advantages:

1. The convex edge at the port of the base is fixedly connected with the light-transmitting glass, and the light transmittance is better.

2. It is bonded with glue and reinforced with wrapped corners, which makes the solar panel collector compact in structure and beautiful in appearance.

Description of drawings

Fig. 1 is a structural schematic diagram provided by the utility model.

Fig. 2 is a side sectional view provided by the utility model.

Fig. 3 is a partial enlarged view of a side section provided by the utility model.

In the figure, 1, base; 1a, concave cavity; 1b, convex edge; 2, heat exchange tube; 2a, pole tube; 2b, row tube; 3, heat collecting plate; 4, transparent glass; Groove; 6. Insulation layer; 7. Corner wrapping.

Detailed ways:

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in Fig. 1, Fig. 2 and Fig. 3, the utility model includes a base 1, a heat collecting plate 3, a heat exchange tube 2, and a heat insulating layer 6. The base 1 is a rectangular aluminum cavity 1a, and the surface of the cavity 1a is A thermal insulation layer 6 made of glass wool material corresponding to the contour of the concave cavity 1a is laid.

A heat exchange tube 2 composed of a pole tube 2a and several row tubes 2b is inlaid on the heat insulating layer 6 . Both ends of the pole tube 2a are fixed on the frame of the cavity 1a, and lean against the edge of the rectangular cavity 1a horizontally. Several row pipes 2b vertically pass through the pole tube 2a, the top is against the heat insulation layer 6, and the other end is fixed on the edge of the cavity 1a, and the row pipes 2b are vertically and uniformly embedded in the heat insulation layer 6. The heat exchange tube 2 is covered with a layer of rectangular heat collecting plate 3 which is slightly smaller than the concave cavity 1a, and the row pipe 2b and the heat collecting plate 3 are welded by ultrasonic waves. The heat energy collected by the heat collecting plate 3 can be absorbed evenly and quickly by the heat exchange tubes 2 embedded in the heat insulation layer 6 , and the heat insulation layer 6 can effectively protect the heat energy from loss.

The port of the concave cavity 1a has a convex edge 1b protruding outward, and uniformly distributed hemispherical glue grooves 5 are arranged on the convex edge 1b, storing UV glue. The convex edge 1b is covered with a layer of light-transmitting glass 4 that is as large as the base 1, and can be firmly bonded to the convex edge 1b through the action of UV glue in the glue-holding groove 5. The four corners of the rectangular convex edge 1b are equipped with plastic corners 7, which can better press the joint between the convex edge 1b and the light-transmitting glass 4, and can protect the edges and corners to prevent collisions and damage.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Although this article uses more base 1; concave cavity 1a; convex edge 1b; heat exchange tube 2; pole tube 2a; row tube 2b; 6; wrap angle 7 and other terms, but the possibility of using other terms is not excluded. These terms are only used to describe and explain the essence of the utility model more conveniently; interpreting them as any kind of additional limitation is contrary to the spirit of the utility model.

Claims (10)

1. plate solar collector, comprise a base (1), this base (1) has a cavity along horizontal spreading (1a), the surface of described cavity (1a) is provided with a thermal insulation layer (6), place, bottom surface at the above cavity of thermal insulation layer (6) (1a) is provided with some heat-exchange tubes (2) in a tubular form, it is characterized in that, the port of described base (1) cavity (1a) is coated with one deck transparent glass (4), and described transparent glass (4) is fixed together by bonding with the port of base (1) cavity (1a).

2. plate solar collector according to claim 1, it is characterized in that, the port of described base (1) cavity (1a) has the convex edge (1b) of protruding laterally, the edge of above-mentioned transparent glass (4) abuts on the convex edge (1b), and has glue between convex edge (1b) and transparent glass (4).

3. plate solar collector according to claim 2 is characterized in that, described glue is UV glue.

4. plate solar collector according to claim 2 is characterized in that, has some recessed appearance glue grooves (5) on described convex edge (1b), and described appearance glue groove (5) is distributed on the convex edge (1b).

5. according to claim 1 or 2 or 3 or 4 described plate solar collectors, it is characterized in that also have heat-conducting plate between described thermal insulation layer (6) and the transparent glass (4), above-mentioned heat-exchange tube (2) is connected on the heat-conducting plate.

6. according to claim 2 or 3 or 4 described plate solar collectors, it is characterized in that the edges and corners of described transparent glass (4) are provided with cornerite (7), and cornerite (7) is with the edges and corners of transparent glass (4) and the corner angle parcel of convex edge (1b).

7. plate solar collector according to claim 6 is characterized in that, described transparent glass (4) rectangularity, and four edges and corners of described transparent glass (4) all have cornerite (7).

8. plate solar collector according to claim 6 is characterized in that, described cornerite (7) adopts plastic material to make.

9. according to claim 1 or 2 or 3 or 4 described plate solar collectors, it is characterized in that the material of described thermal insulation layer (6) is a foamed plastics.

10. plate solar collector according to claim 9 is characterized in that, described thermal insulation layer (6) is the mineral wool goods.

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