High heat-preserving anti-freezing solar water heater

Abstract

The invention relates to a high heat-preservation and freezing-prevention solar water heater which is characterized in that a heat-preservation and freezing-prevention cover which can cover two water pipe joints is arranged on a water tank, and is provided with an opening for an overflow water pipe and an inlet and outlet water pipe provided with a heat preservation pipe to penetrate through the cover. A base of the cover is generally provided with an opening at one end and a cylinder with a seal plate at the other end, the seal plate is a concave cylindrical plate, the central area of the seal plate is provided with two first perforations for two water pipe joints to penetrate through, and connecting holes are uniformly arranged at the circumferential outer margin; a top cover comprises a first cylinder and a second cylinder which are coaxially communicated, the outside diameter of the first cylinder is bigger than that of the second cylinder, and the other end of the first cylinder and the other end of the second cylinder are open; the other end of the first cylinder extends into the base through the opening end of the base, and the top cover is connected with the base in a locking way; the two water pipe joints respectively penetrate through the two first perforations to extend into the heat-preservation and freezing-prevention cover, the seal plate is inosculated with and clings to the water tank, and the base is connected with the water tank by adopting a fastener passing through a connecting hole; two water pipes penetrate through the cover through the other end of the second cylinder. The heater has high thermal efficiency.

Description

technical field [0001] The invention relates to the field of solar water heaters, more specifically, the invention relates to a high thermal insulation and antifreeze solar water heater. Background technique [0002] With the gradual seriousness of the shortage of conventional energy sources and the gradual strengthening of people's awareness of energy conservation and environmental protection, solar water heaters have become more and more popular as safe, environmentally friendly, energy-saving and convenient solar water heaters. Solar water heaters have been widely used in families, hotels, schools, troops, hospitals, factories and mines. [0003] The solar water heater includes a support, a water tank, a plurality of heat collecting pipes, overflow pipes and water inlet and outlet pipes, the overflow water pipe joint and the water inlet and outlet pipe joints are arranged on the water tank, and one end of the overflow water pipe and the water inlet and outlet pipes is con...

AI Technical Summary

Problems solved by technology

[0004] The two water pipe joints are exposed to the air, so that the heat exchange rate between them and the external environment is particularly high. In addition, the insulation effect of the insulation pipe on the inlet and outlet pipes is poor. In the cold winter (when the outdoor temperature reaches below zero degrees Celsius) time), the water in the inlet and outlet pipes is easy to freeze and expand, causing the pipe to burst

[0005] These defects not only affect the normal use of solar water heaters, but also lead to low thermal efficiency.

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