Integrated solar heat collector

Abstract

The invention belongs to the technical field of solar heat collection, and discloses an integrated solar heat collector which comprises a cover plate, a keel and a heat collection pipe, the cover plate is installed on the keel, and a single-cavity, double-cavity or multi-cavity through cavity is formed among the cover plate, the keel and the heat collection pipe; the heat collecting pipe is embedded in a wall body or a roof, or the heat collecting pipe is erected on the surface of the wall body or the roof, or the heat collecting pipe is arranged on the surface of the wall body or the roof through a keel. Due to the simple structure, low manufacturing cost, large area, no or little operation cost, low failure rate and long service life, the problem that a building needs to be heated and cannot be centrally heated in winter can be thoroughly solved. And in summer, the temperature of the wall body can be prevented from rising by utilizing the chimney effect formed in the through cavity. The system is suitable for energy-saving transformation of new buildings and existing buildings in cities and towns cold in winter and hot in summer in vast rural areas and southern areas, and solves the problems of hot water and hot air supply, heating in winter and cooling in summer at a time.

Description

technical field [0001] The invention belongs to the technical field of solar heat collection, and in particular relates to an integrated solar heat collector. Background technique [0002] Existing solar heat collectors are mainly divided into basking type heat collectors, flat plate heat collectors and vacuum tube heat collectors. The advantages of sun-dried solar water heaters are simple structure and low cost, but the disadvantages are low thermal efficiency, poor heat preservation effect, and the obtained hot water can only be used at night, so the existing sun-dried solar collectors have been replaced by flat plate Solar collectors and evacuated tube solar collectors are replaced. Although flat plate collectors and vacuum tube collectors have been popularized and applied on a large scale, there are still many shortcomings, mainly as follows: 1. Inconvenient installation, requiring separate installation and special installation location, sometimes falling off Phenomeno...

AI Technical Summary

Problems solved by technology

The advantages of sun-dried solar water heaters are simple structure and low cost, but the disadvantages are low thermal efficiency, poor heat preservation effect, and the obtained hot water can only be used at night, so the existing sun-dried solar collectors have been replaced by flat plate Solar collectors and evacuated tube solar collectors replaced

Although flat plate collectors and vacuum tube collectors have been popularized and applied on a large scale, there are still many shortcomings, mainly as follows: 1. Inconvenient installation, requiring separate installation and special installation location, sometimes falling off Phenomenon; 2. The area of ​​the collector is small, generally only a few square meters, and the hot water is not enough in winter; 3. The function is single, and it can only produce hot water, which is not enough in winter, and it cannot be used in spring, summer and autumn; 4. There is overheating in summer, both It wastes water resources and reduces the service life of the collector; 5. The anti-freeze performance is poor, and it needs to be emptied in winter, or the pipeline is heated; 6. The service life is short, generally only 10-20 years, and the vacuum tube often breaks down during use. Tube explosion occurs; 7. The water tank is far away from the place of use, and a large amount of cold water needs to be released during use, which is a waste of time and water; 8. The unit price per square meter is high, and large-scale promotion is limited; 9. The bearing capacity of the collector Low pressure capacity, pressure mismatch between hot water and cold water, poor water temperature stability

Therefore, the use of solar water heaters has shown a downward trend in recent years, and many solar water heater manufacturers are facing the dilemma of declining profits, losses or even bankruptcy.

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