Automatic-defrosting type solar water heater used in region with low sunlight intensity

Abstract

The invention discloses an automatic-defrosting type solar water heater used in a region with low sunlight intensity. The automatic-defrosting type solar water heater comprises a heat concentration pipe, a water tank, a water outlet pipe and a power supply, wherein an electric heating wire is spirally wound on the outer circumference of the water outlet pipe outside a water outlet of the water tank, wherein the electric heating wire is connected with a storage battery; a temperature sensor for controlling the electric heating wire to work is also arranged on the water outlet pipe; and a heat insulation layer covers outside the electric heating wire. After the automatic-defrosting type solar water heater is adopted, when the weather temperature is lower than zero DEG C, the temperature sensor is switched on to form a loop, the electric heating wire works; and when the temperature rises to 4 DEG C, the temperature sensor is disconnected from the loop, the electric heating wire stops working, and therefore the solar water heater can also work normally even in frost weather at southwest regions in China without blocking phenomenon caused by frosting. The automatic-defrosting type solar water heater disclosed by the invention has the advantages of simple structure, low cost, easiness in installation and working stability and reliability.

Description

technical field [0001] The invention relates to a solar water heater, in particular to an automatic defrosting solar water heater in a low sunshine area. Background technique [0002] In today's world, energy is becoming more and more scarce, and solar water heaters are increasingly popular because of their effective use of natural green energy. However, in winter in the low-sunlight southwestern region of our country, frost is particularly prone to occur. In this weather, the part outside the outlet pipe of the solar water heater is easy to freeze, resulting in the inability to release water; once this phenomenon occurs, the water pipe in this part needs to be heated. , to melt the ice. [0003] As can be seen from the above, the above-mentioned existing automatic defrosting solar water heaters in low sunshine areas obviously have defects in actual use, and need to be improved. [0004] Therefore, the present invention realizes that the above-mentioned defects can be impr...

AI Technical Summary

Problems solved by technology

However, in winter in the low-sunlight southwestern region of our country, frost is particularly prone to occur. In this weather, the part outside the outlet pipe of the solar water heater is easy to freeze, resulting in the inability to release water; once this phenomenon occurs, the water pipe in this part needs to be heated. , to melt the ice

[0003] As can be seen from the above, the above-mentioned existing low-sunshine area automatic defrosting type solar water heater obviously has defects in actual use and needs to be improved.

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