CN204880792U - Flat medium temperature heat collector - Google Patents

Abstract

The utility model provides a flat plate medium-temperature heat collector, which belongs to the technical field of solar water heaters, and its structure includes a frame, a back plate, a glass cover plate, a heat-absorbing plate core and an insulation layer, and the glass cover plate is connected with the back plate through the frame , the heat-absorbing plate core is arranged between the glass cover plate and the back plate, and an insulating layer is filled between the heat-absorbing plate core and the frame and the back plate; the heat-absorbing plate core includes a manifold, which is connected to the manifold A plurality of pipes arranged parallel to each other and a concentrating reflection plate arranged under the pipes, the two ends of the header protrude from the frame respectively, and the concentrating reflection plate is a concave curved panel , the inside of the header and row pipe is filled with heat transfer medium. The utility model has a reasonable design. By filling the heat transfer medium inside the header pipe and the row pipe, the low-temperature start-up flat plate heat collector is realized. By adding a light-concentrating reflector under the row pipe, the heat collection effect is enhanced and the heat transfer efficiency is improved. Then choose the appropriate material according to the function of each component to prolong the service life.

Description

A flat medium temperature collector

technical field

The utility model relates to the technical field of Tanyang energy heat collectors, in particular to a flat-plate medium-temperature heat collector.

Background technique

A solar collector is a device that absorbs solar radiation and transfers the generated heat energy to a heat transfer medium.

According to the working temperature range of solar collectors, they can be divided into low temperature collectors, medium temperature collectors and high temperature collectors. The working temperature of traditional solar water heaters is generally lower than 80°C, which belongs to low-temperature solar thermal utilization with basically mature technology. However, solar refrigeration, industrial heating, and seawater desalination require a temperature of 80-250°C, which belongs to the scope of medium-temperature solar thermal utilization. Most of the medium-temperature solar collectors working at 80-250°C use glass tube collectors to realize the heat utilization of medium-temperature solar energy at 80-250°C. The disadvantage is that the low-temperature start-up effect is not obvious.

According to whether there is a vacuum space inside the solar collector, it can be divided into: flat plate collector and vacuum tube collector. Flat-plate solar collectors are the basic components for low-temperature thermal utilization of solar energy, and have always been the leading products in the world solar market. It is a device that absorbs solar radiation energy and transfers heat to the working medium. It is also a special heat exchanger. The working medium in the collector exchanges heat with the distant sun. The flat plate solar collector is composed of a heat absorbing plate core, a shell, a transparent cover plate, an insulating material and related parts. After connecting the circulation pipeline and the heat preservation water tank, it becomes able to absorb solar radiation heat and raise the water temperature. It has been widely used in domestic water heating, swimming pool heating, industrial water heating, building heating and air conditioning and many other fields.

In view of the above two points, the structure of the existing heat collector is improved, and a flat-plate medium-temperature heat collector with low temperature start-up, high heat transfer efficiency and long service life is designed.

Contents of the invention

The technical task of the utility model is to solve the deficiencies of the prior art and provide a flat-plate medium-temperature heat collector.

The technical scheme that the utility model solves its technical problem adopts is:

A flat plate medium-temperature heat collector, comprising a frame, a back plate, a glass cover plate, a heat-absorbing plate core and an insulation layer, the glass cover plate is connected to the back plate through the frame, and the heat-absorbing plate core is arranged on the glass cover plate Between the heat-absorbing board core and the frame and the backboard, an insulating layer is filled;

The heat-absorbing plate core includes a manifold, a plurality of pipes connected to the manifold and arranged in parallel, and a concentrating reflection plate arranged below the pipes, the two ends of the manifold protrude outward from the frame , the condensing reflection plate is a concave arc-shaped panel, and the interior of the header and row pipes is filled with a heat transfer medium.

Preferably, the headers and row pipes are all made of TP2 copper tubes.

Preferably, the glass cover plate is made of low-iron textured tempered glass.

Preferably, the insulation layer is polyester cotton.

Preferably, the frame is made of 6063 aluminum alloy profile.

Compared with the prior art, the beneficial effect of a kind of plate type medium-temperature heat collector of the present utility model is:

The utility model is simple in structure and reasonable in design. By filling the heat transfer medium inside the header pipe and the row pipe, the low-temperature start-up flat plate heat collector is realized. By adding a light-concentrating reflection plate under the row pipe, the heat collection effect is enhanced and the heat collection effect is improved. The heat transfer efficiency is improved, and the appropriate material is selected according to the function of each component to prolong the service life.

Description of drawings

Accompanying drawing 1 is the front view structure sectional view of the utility model;

Accompanying drawing 2 is the top view structural diagram of the utility model.

In the figure, 1. Frame, 2. Backplane, 3. Glass cover, 4. Insulation layer, 5. Header,

6. Arrangement pipe, 7. Concentrating reflector.

The direction of the arrow in Fig. 2 indicates the direction in which the heat transfer medium flows into the header and flows out of the header.

Detailed ways

Below in conjunction with accompanying drawing 1, 2, a kind of plate type medium temperature heat collector of the present utility model is described in detail below.

As shown in accompanying drawings 1 and 2, a flat-plate medium-temperature heat collector of the present invention has a structure comprising a frame 1, a back plate 2, a glass cover plate 3, a heat-absorbing plate core and an insulating layer 4, and the glass cover The plate 3 is connected to the back plate 2 through the frame 1, the heat-absorbing plate core is arranged between the glass cover plate 3 and the back plate 2, and an insulating layer 4 is filled between the heat-absorbing plate core, the frame 1 and the back plate 2 ;

The heat-absorbing plate core includes a header 5, a plurality of row pipes 6 connected to the header 5 and arranged in parallel, and a concentrating reflection plate 7 arranged below the row pipes 6, the two ends of the header 5 The frames 1 protrude outward respectively, the condensing and reflecting plate 7 is a concave arc-shaped panel, and the inside of the header pipe 5 and the row pipe 6 is filled with a heat transfer medium.

Preferably, both the header pipe 5 and the row pipe 6 are made of TP2 copper tubes.

Preferably, the glass cover plate 3 is made of low-iron textured tempered glass.

Preferably, the insulation layer 4 is polyester cotton.

Preferably, the frame 1 is made of 6063 aluminum alloy profile.

By filling the heat transfer medium inside the header pipe 5 and the row pipe 6 of the utility model, the low-temperature start-up flat plate collector is realized, and by adding a light-concentrating reflector 7 under the row pipe 6, and the row pipe is preferentially used in the process of use. 2. Located on the center line of the light-concentrating reflector 7 to enhance the heat collection effect and improve the heat transfer efficiency, and then select appropriate materials according to the functions of each component to prolong the service life.

In summary, the content of the present utility model is not limited to the above-mentioned embodiments, and those skilled in the art can propose other embodiments within the guiding ideology of the present utility model, but these embodiments are all included in the present utility model. within the range.

Claims (5)

1. A flat plate medium-temperature heat collector, comprising a frame, a back plate, a glass cover plate, a heat-absorbing plate core and an insulating layer, wherein the glass cover plate is connected to the back plate through a frame, and the heat-absorbing plate The core is arranged between the glass cover plate and the back plate, and an insulating layer is filled between the heat-absorbing plate core, the frame, and the back plate; The heat-absorbing plate core includes a manifold, a plurality of pipes connected to the manifold and arranged in parallel, and a concentrating reflection plate arranged below the pipes, the two ends of the manifold protrude outward from the frame , the condensing reflection plate is a concave arc-shaped panel, and the interior of the header and row pipes is filled with a heat transfer medium. 2. A flat plate medium-temperature heat collector according to claim 1, characterized in that TP2 copper tubes are used for both the header and row pipes. 3. A flat plate medium-temperature heat collector according to claim 2, wherein the glass cover plate is made of low-iron textured tempered glass. 4. A flat plate medium-temperature heat collector according to claim 1, 2 or 3, characterized in that, the insulation layer is polyester cotton. 5. A flat medium-temperature heat collector according to claim 1, 2 or 3, wherein the frame is made of 6063 aluminum alloy profile.