Solar explosion-proof heat collector
A technology of heat collecting tubes and solar energy, which is applied in the field of solar heat collecting tubes, can solve problems such as explosive tubes, burst tubes, and the effect of heat preservation, and achieve the effect of preventing tube explosions
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[0009] Below in conjunction with accompanying drawing and embodiment the present invention is further described:
[0010] exist figure 1 In the shown embodiment, the solar explosion-proof heat collector includes an inner glass tube 1 and an outer glass tube 2; a vacuum layer 3 is formed between the inner glass tube 1 and the outer glass tube 2; the outer glass tube The inner bottom of 2 is provided with a short tube 4 made of opaque thermal insulation material, the outer surface of the short tube 4 is closely attached to the outer glass tube 2, and the port of the short tube 4 is higher than the inner The bottom of the layer glass tube 1; mercury is filled in the short tube 4.
[0011] The volume of the mercury, the volume of the vacuum space above the short tube port, and the volume of the short tube 4 have the following characteristic relationship: when the temperature of the mercury is lower than 90% of the boiling point of the liquid in the inner glass tube 1, the The vo...
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