Solar water heater water pipe anti-freezing device

Abstract

The invention discloses a solar water heater water pipe anti-freezing device. The solar water heater water pipe anti-freezing device comprises a water pipe and a water discharging pipe, wherein the drainage pipe is located on one side of the water pipe, one end of the drainage pipe communicates with the water pipe, and a drainage valve is arranged on the drainage pipe; one side of the drainage valve is provided with a drainage device, and the drainage device is located in the drainage pipe; and the drainage device comprises a piston and a pull rod, and the piston is fixedly connected with oneend of the pull rod. The drainage device is arranged on the drainage pipe, the drainage valve can be opened, residual water in the water pipe is pumped out through the pull rod and the piston, water in the water pipe is prevented from being frozen, and the problem that the water pipe is frozen and cracked is solved; and a heat preservation layer is arranged between an inner pipe body and an outerpipe body, a heat preservation material is filled in the heat preservation layer, the phenomenon that the water pipe is broken due to large temperature difference between the inner part and the outerpart of the inner pipe can be prevented, and the stability of the water pipe is improved.

Description

technical field [0001] The invention relates to the field of solar water heaters, in particular to an antifreezing device for water pipes of solar water heaters. Background technique [0002] Solar water heaters are devices that use sunlight to heat water. Solar water heaters are divided into vacuum tube solar water heaters and flat plate solar water heaters. In winter, the water pipes of existing solar water heaters are likely to cause the remaining water in the pipes to be burned due to the low temperature. Frozen, resulting in the bursting of water pipes, causing losses and affecting the use of users. [0003] In order to prevent water pipes from breaking, most of the existing water pipes have a drainage function, but most of the existing drainage functions only use the drain valve to drain water, which cannot completely discharge the water in the water pipes, and the drainage effect is mediocre, and the existing water pipes, In winter, when the water pipe is connected t...

AI Technical Summary

Problems solved by technology

[0002] Solar water heaters are devices that use sunlight to heat water. Solar water heaters are divided into vacuum tube solar water heaters and flat plate solar water heaters. In winter, the water pipes of existing solar water heaters are likely to cause the remaining water in the pipes to be burned due to the low temperature. Frozen, resulting in the bursting of the water pipe, causing losses and affecting the use of users

[0003] In order to prevent water pipes from breaking, most of the exis

Images