Groove-type solar heat collector adopting wind-driven rotating manner and provided with wave-shaped heat collection pipe

Abstract

The invention discloses a groove-type solar heat collector adopting a wind-driven rotating manner and provided with a wave-shaped heat collection pipe. The groove-type solar heat collector comprises a support frame, a groove-type lens and pipe support frames, wherein the groove-type lens is fixedly connected to the support frame, the pipe support frames are arranged on the support frame and at the two ends of the groove-type lens, the lower ends of the pipe support frames are fixedly connected with the support frame; and the upper ends of the pipe support frames are located above the groove-type lens. The groove-type solar heat collector is characterized by further comprising a heat collection pipe component and a rotation component, wherein the heat collection pipe component is arranged above the groove-type lens, and is installed on the pipe support frames in a penetrating manner and hinged; the two ends of the heat collection pipe component stretch out of the pipe support frames separately; and the rotation component is arranged at the outer sides of the pipe support frames, and is connected to the end head of the heat collection pipe component in a sleeving manner and fixedly connected. During use, a heat exchange working medium in the wave-shaped heat collection pipe of the heat collection pipe component flows along the wave-shaped heat collection pipe; and a wind wheel group used as the rotation component rotates to drive the heat collection pipe component to rotate and adjusts the windward side of a blade in real time under the effect of an environmental wind force, thereby stabilizing a rotation speed of the wave-shaped heat collection pipe.

Description

technical field [0001] The invention relates to a solar heat collector, in particular to a trough solar heat collector, which is a wind-driven rotating corrugated heat collecting pipe trough solar heat collector. Background technique [0002] The trough solar collector is a device that converts the sun's radiant energy into heat energy. As a kind of medium and high temperature collector, it can obtain a higher heat collection temperature and can be used for power generation, refrigeration and air conditioning, heating, seawater Downsizing and other production and living areas. The structure of the traditional trough solar collector is: it includes a support frame, a trough lens, a tube support frame and a heat collector, the trough lens is fixed on the top of the support frame, and the tube support frame is placed on the support frame. Both ends of the trough lens, the lower end of the tube support frame is fixedly connected with the support frame, the upper end is located ...

AI Technical Summary

Problems solved by technology

The structure of the traditional trough solar collector is: it includes a support frame, a trough lens, a tube support frame and a heat collector, the trough lens is fixed on the top of the support frame, and the tube support frame is placed on the support frame. Both ends of the trough lens, the lower end of the tube support frame is fixedly connected with the support frame, the upper end is located above the trough lens, the heat collection device is placed above the trough lens, and the two ends of the vacuum glass tube of the heat collection device are respectively fixed with the tube support frame. The heat collection device includes a vacuum glass tube and a heat collection tube. The heat collection tube is installed in the vacuum glass tube and fixedly connected. The heating medium is passed through the heat collection tube, and the outer wall is coated with a selective absorption coating. Vacuum is used to suppress convection and conduction heat loss. The existing problems are: the heat collecting tubes in the prior art are usually straight-walled metal tubes, which have a stable liquid boundary layer, which reduces the heat transfer effect and low heat collection efficiency; In the glass tube, the connection method of the vacuum glass tube and the tube support frame makes the heat collecting tube fixed, the heat collecting tube is heated unevenly, and the heat-conducting working medium in the heat collecting tube is also heated unevenly, resulting in extremely high temperature at the bottom of the tube, increasing The thermal resistance in the heat conduction process reduces the heat transfer effect; and the local wind speed environment also has a certain impact on the heat collection efficiency of the trough solar collector. The above reasons make the overall efficiency of the trough solar collector obvious. reduce

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