Solar heat collecting device and heating and drying system

Abstract

The invention relates to a solar heat collecting device and a heating and drying system. The solar heat collecting device comprises a plurality of heat collecting monomers arranged side by side, wherein the plurality of heat collecting monomers are sequentially connected in series. Each heat collecting monomer comprises a solar vacuum tube, a top plug, a built-in U-shaped pipeline, a water inlet connecting pipe and a water outlet connecting pipe, wherein the built-in U-shaped pipeline, the water inlet connecting pipe and the water outlet connecting pipe are integrally formed, one end of the solar vacuum tube is opened, the built-in U-shaped pipeline is inserted into the solar vacuum tube, the top plug seals the opening of the solar vacuum tube and is provided with two through holes, and two parallel straight pipes of the built-in U-shaped pipeline penetrate through the corresponding through holes to communicate with the water inlet connecting pipe and the water outlet connecting pipe.The invention further discloses the heating and drying system. The solar heat collecting device has the beneficial effects that the heat collection function is excellent, the technology is simple, thecost is extremely low, the collected heat exchanges heat with indoor air through an indoor radiator, high-temperature heating or drying can be realized, and the device is suitable for wide-range popularization and application. All-weather heating is realized while the effective utilization rate of solar energy is improved.

Description

technical field [0001] The invention relates to a solar heat collecting device and a heating and drying system, belonging to the technical field of heating and drying. Background technique [0002] At present, in order to solve the increasingly urgent energy demand, human beings must increase the energy supply, which is followed by environmental problems and energy shortages. In order to solve these problems, people have turned their attention to new energy sources, including: solar energy, wind energy, nuclear energy, geothermal resources, etc. For decades, new energy technologies represented by hydropower, solar energy, and nuclear energy have been supported by governments of various countries. Great progress has been made. However, according to statistics, although the cost of new energy utilization has been decreasing year by year, it still remains high. [0003] In addition, the existing solar heating is mainly used to provide domestic hot water or double as heating d...

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Problems solved by technology

However, according to statistics, although the cost of new energy utilization has been decreasing year by year, it is still high.

[0003] In addition, the existing solar heating is mainly used to provide domestic hot water or double as heating during the day. Its main function is to heat the water in the water tank by absorbing or collecting solar energy, and then pass it into the indoor radiator to heat the room. When the solar energy is insufficient or there is no sunlight, especially at night, the water temperature in the water tank drops or the water temperature is lower than a certain temperature (generally when the water temperature is below 40 degrees), the indoor heating cannot be provided, and the solar device cannot function, so it cannot Realize all-weather indoor heating

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