CN209197173U - A leak-proof high-efficiency heat-collecting solar panel core - Google Patents

Abstract

The utility model belongs to the technical field of solar energy equipment, relates to a flat solar heat collector, in particular to an anti-leakage and high-efficiency heat-collecting solar plate core. It includes a heat collecting film plate, a medium flow channel, a cold medium inlet connecting pipe and a hot medium outlet connecting pipe, the cold medium inlet connecting pipe and the hot medium outlet connecting pipe are respectively connected to the inlet and outlet of the medium flow channel, and the medium flow The channel is a copper tube, and the heat-collecting film plate is provided with a semicircular groove for embedding a medium flow channel. The utility model provides a leak-proof and high-efficiency heat-collecting solar panel core, which is integrally formed and inlaid with The copper tube connected to the heat collecting plate is bonded to increase the contact area and improve the heat conduction efficiency. Thermal efficiency. The utility model has reasonable design, simple structure and is suitable for large-scale popularization.

Description

A leak-proof high-efficiency heat-collecting solar panel core

technical field

The utility model belongs to the technical field of solar energy equipment, relates to a flat solar heat collector, in particular to an anti-leakage and high-efficiency heat-collecting solar plate core.

Background technique

Flat panel solar water heaters are designed and developed for small high-rise residential buildings. The water tank is placed on the balcony, roof, wall, etc. At the same time, the flat solar collector is placed on the balcony, window, roof, and wall inside the building column, which makes up for the traditional solar water heater that cannot be perfectly integrated with the building and the environment due to its inherent shortcomings. Pity. The flat-panel solar water heater is easy to install, simple, occupies a small area, is not restricted by the installation environment, and because of its high heat recovery rate, very energy-saving, simple, fast, convenient, and safe to use, it is favored by the majority of users.

At present, the split wall-mounted solar collectors used in domestic high-rise buildings are divided into two types: the overall blue film + copper tube combined type and the whole stainless steel plate stretched welded heat collector. Among them, the overall blue film + copper tube combined heat collector adopts the whole plate heat collecting plate coated with heat collecting film in advance to weld with copper tube, the main channel and branch channel of copper tube are connected by brazing, and the heat collecting film absorbs light and transform To generate heat, the copper tube and the heat transfer medium in the copper tube are heated, and the heated heat transfer medium enters the heat exchanger in the water tank through the main flow pipe of the collector and the connecting pipe, and the bathing water is heated through the heat exchanger; this structure The shortcoming of the heat collector is that the connection between the vertically arranged mainstream pipe and the horizontally arranged branch pipe is connected by brazing. Therefore, welding leakage defects are prone to occur, the welding cost is high, and the heat collection efficiency is low; moreover, the existing heat collection plate is an integral flat plate, the heat collection efficiency is low, and the strength is low and the service life is short.

Utility model content

The utility model aims at the technical problems existing in the above-mentioned flat plate heat collector, and proposes a leakage-proof high-efficiency heat-collecting solar panel core with reasonable design, simple structure, low cost and high heat-collecting efficiency.

In order to achieve the above purpose, the technical solution adopted by the utility model is that a leakage-proof high-efficiency heat-collecting solar panel core provided by the utility model includes a heat-collecting film plate, a medium flow channel, a cold medium inlet connecting pipe and a heat medium outlet Connecting pipes, the cold medium inlet connecting pipe and the hot medium outlet connecting pipe are respectively connected to the inlet and outlet of the medium flow channel, the medium flow channel is a copper tube, and the heat collecting film plate is provided with a The semi-circular groove of the road, the notch of the semi-circular groove is opposite to the direction of sunlight, and the heat-collecting film plate is provided with a wave-shaped heat-collecting arc surface, and the arc surface of the heat-collecting arc surface is in line with the The arc surfaces of the semicircular grooves are arranged in the same direction, and the heat collecting arc surfaces are arranged along the flow direction of the medium. The medium flow channel is a whole bent copper pipe, and the cold medium inlet connecting pipe and the hot medium outlet connecting pipe are arranged adjacently.

Preferably, at least two medium flow channels are arranged in parallel on the heat collecting film plate, and adjacent medium flow channels are arranged on the same plane with equal intervals inside and outside.

Compared with the prior art, the utility model has the advantages and positive effects that:

The utility model provides an anti-leakage high-efficiency heat-collecting solar plate core, which increases the contact area and improves the heat conduction efficiency by adopting an integrally formed copper tube connected to the heat-collecting plate in an inlaid form. The wavy heat-collecting arc surface is pressed on the heat-collecting film plate, which increases the heat-collecting area and improves the heat-collecting efficiency. The utility model has reasonable design, simple structure and is suitable for large-scale popularization.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the utility model , for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

Fig. 1 is the structural representation of a kind of anti-leakage high-efficiency heat-collecting solar panel core provided by the embodiment;

Fig. 2 is the cross-sectional view of Fig. 1 in the E-E direction provided by the embodiment;

In the above figures, 1. heat collecting film plate; 11. semicircular groove; 12. heat collecting curved surface; 2. cold medium inlet connecting pipe; 3. hot medium outlet connecting pipe; 4. medium flow channel; 41. copper pipe.

Detailed ways

In order to understand more clearly the above purpose, features and advantages of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. For the convenience of description, if the words "up", "down", "left" and "right" appear below, it only means that the directions of up, down, left and right are consistent with the drawings themselves, and do not limit the structure.

In the following description, a lot of specific details have been set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways that are different from those described here. Therefore, the utility model is not limited to the specific details of the following disclosure EXAMPLE LIMITATIONS.

Embodiment, as shown in Fig. 1 and Fig. 2, a leak-proof high-efficiency heat-collecting solar panel core provided by the utility model includes a heat-collecting film plate 1, a medium flow channel 4, a cold medium inlet connecting pipe 2 and a heat medium The outlet connecting pipe 3, the cold medium inlet connecting pipe 2 and the hot medium outlet connecting pipe 3 are respectively connected to the inlet and outlet of the medium flow channel, wherein the heat collecting film plate includes a heat collecting plate and a heat collecting film, which belongs to the prior art. The focus of the utility model is to improve the structure of the medium flow channel itself and the arrangement form on the heat collecting film plate.

Specifically, the medium flow channel 4 provided by the utility model is formed by bending a whole piece of copper tube 41, and the copper tube 41 is arranged on the heat collecting film plate 1, and the heat collecting film plate 1 is provided with a semicircle for embedding the copper tube. Groove 11, the notch of the semicircular groove 11 is opposite to the sunlight irradiation direction, the purpose of setting like this is to better absorb solar energy, the axial direction of the semicircular groove 11 is arranged along the long side direction of the heat collecting film plate 1 . In this embodiment, the overall curve of the semicircular groove 11 is adapted to the curved route of the copper pipe, the medium flow channel 4 is embedded in the semicircular groove 11 as a whole, and the heat collecting film on the heat collecting plate is covered with The form of the medium flow channel increases the overall contact area between the medium flow channel and the heat-collecting film plate, and improves the heat conduction efficiency.

In order to improve the heat-collecting effect of the heat-collecting film plate 1, in the present embodiment, a wave-shaped heat-collecting arc surface 12 is provided on the heat-collecting film plate 1, and the heat-collecting arc surface can be regarded as composed of several arc surfaces and semicircles. The curved surface of the groove is set in the same direction and the axial direction is the same as that of the semicircular groove. The wavelength direction is the same as the direction of the medium flow, that is, it is set from top to bottom. The purpose of such setting is to increase the area of the heat collecting arc surface to the maximum and ensure the heat collecting effect.

Furthermore, the heat collecting arc surface 12 has increased the area of the heat collecting film plate 1 exposed to light, and the area of the back of the semicircular groove 11 receiving light has greatly improved the heat collecting efficiency, and the heat collecting arc surface 12 adopts Compression molding has lower equipment cost and higher processing efficiency, which is conducive to increasing the production efficiency of enterprises.

In order to improve the heat conduction efficiency of the medium flow channel, and at the same time, avoid welding leakage defects caused by welding, the curved shape of the copper pipe 41 provided by the utility model is S-shaped. The purpose of this design can increase the flow area of the medium , improve the heat transfer effect. There are two or more copper tubes 41 and the adjacent copper tubes are arranged on the same plane with equal intervals inside and outside. In this way, in addition to avoiding the leakage defects caused by welding the main flow channel and the branch flow channel, the continuity of the heat conduction of the copper tube as a whole can be improved, and the circulation efficiency of the medium in the medium flow channel is higher; at the same time, the composition of the medium flow channel The tube shape of each copper tube 41 in 4 is a complete and continuous channel. On the premise of ensuring the efficient circulation of the medium and meeting the overall area limit of the heat collecting film, increasing the inflection point of the copper tube can effectively prolong the medium in the The time of heat exchange in the copper tube 41 is conducive to making full use of heat collection heat; further, the optimal number of copper tubes in the utility model is two, which can ensure a higher heat conduction efficiency, thereby improving the overall heat transfer efficiency of solar energy . At the same time, a large number of welding points are reduced by adopting the integrally formed copper tube connected to the heat collecting plate in an inlaid form, which avoids leakage defects caused by welding, reduces welding workload, and improves production efficiency.

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model in other forms. Any skilled person who is familiar with this profession may use the technical content disclosed above to change or remodel it into an equivalent change. The equivalent embodiments are applied to other fields, but any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present utility model still belong to the technical solution of the present utility model scope of protection.

Claims (2)

1. A leak-proof high-efficiency heat-collecting solar panel core, comprising a heat-collecting film plate, a medium flow channel, a cold medium inlet connecting pipe and a hot medium outlet connecting pipe, and the cold medium inlet connecting pipe and the heat medium outlet connecting pipe are respectively It is connected with the inlet and outlet of the medium flow channel, and it is characterized in that the medium flow channel is a copper tube, and the heat collecting film plate is provided with a semicircular groove for embedding the medium flow channel, and the semicircular groove The notch is opposite to the direction of sunlight irradiation, and the heat collecting film plate is provided with a wave-shaped heat collecting arc surface, and the arc surface of the heat collecting arc surface is set in the same direction as the arc surface of the semicircular groove. The heat collecting arc is arranged along the direction of medium flow, the medium flow channel is a whole bent copper tube, and the cold medium inlet connecting pipe and the hot medium outlet connecting pipe are arranged adjacently. 2. A kind of anti-leakage high-efficiency heat-collecting solar panel core according to claim 1, characterized in that, the heat-collecting membrane plate is provided with at least two parallel medium flow channels, and the adjacent medium flow channels are in the Arranged on the same plane in the form of equal intervals inside and outside.