Non-tracking type solar energy collector

Abstract

The invention discloses a non-tracking type solar energy collector. The collector comprises a shell, a fluid inflow pipe, a fluid outflow pipe, two heat collecting pipes and a heat absorbing plate, wherein the shell comprises a sunward face and a shady face; the fluid inflow pipe penetrates through one end of the shell, and the fluid outflow pipe penetrates through the other end of the shell; the two heat collecting pipes are fixedly arranged in the shell, and inlet ends of the two heat collecting pipes both communicate with fluid of the fluid inflow pipe, while outlet ends of the two heat collecting pipes both communicate with fluid of the fluid outflow pipe; the heat absorbing plate is arranged between the sunward face of the shell and the heat collecting pipes, and one side, facing the sunward face of the shell of the heat absorbing plate, is coated with a selective absorbing coating; the other side of the heat absorbing plate is tightly attached to the heat collecting pipes; sunlight passes through the sunward face of the shell and irradiates the heat absorbing plate; and heat absorbed by the heat absorbing plate is used for heating a heat-transfer medium in each heat collecting pipe. The collector disclosed by the invention is simple in structure, convenient to manufacture, low in cost, long in service life and high in heat collecting efficiency.

Description

technical field [0001] The invention relates to the technical field of solar energy, in particular to a non-tracking solar heat collector. Background technique [0002] In the heat utilization of solar energy, the key is to convert the sun's radiant energy into heat energy. Since solar energy is scattered, it must be concentrated. A solar collector is a device used to absorb solar radiation to convert it into heat energy and transfer it to a heat medium. Although it is not a terminal product directly oriented to consumers, a solar collector is a key component of various solar heat utilization systems . Whether it is solar water heaters, solar cookers, active solar houses, solar greenhouses or solar drying, solar industrial heating, solar thermal power generation, etc., solar collectors are inseparable, and solar collectors are used as the power or core components of the system. of. The common ones are flat-plate, vacuum tube and concentrating solar collectors. [0003] ...

AI Technical Summary

Problems solved by technology

In the prior art non-tracking solar heat collectors, there is usually only a single heat collecting tube, although the structure is simple, the heat absorption efficiency is low

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