Anti-freezing solar water supply device

Abstract

The invention discloses an anti-freezing solar water supply device which comprises a solar heat collection box, a water box and a water mixing valve. A water outlet of the solar heat collection box and a water outlet of the water box are connected to a hot water inlet and a cold water inlet of the water mixing valve through a casing pipe respectively, and the casing pipe is further provided with a heat absorbing and releasing pipe which is filled with phase-change media. The upper end of the solar heat collection box and the upper end of the water box are further connected with a pressure difference adjusting pipe which is provided with a heat insulation adjusting piece sliding in the length direction of the pressure difference adjusting pipe. According to the anti-freezing solar water supply device, the heat absorbing and releasing pipe and the pressure difference adjusting pipe are added, the pressure difference of cold and hot water boxes is balanced by sliding the heat insulation adjusting piece in the pressure difference adjusting pipe, cold water in the cold water box enters the casing pipe, the circulation temperature difference is increased, water flowing in the pipe is promoted, and the purposes of preventing the water pipe from being frozen and preventing water from stopping flowing are achieved.

Description

technical field [0001] The invention relates to anti-freezing of a single-household solar hot water pipeline system in winter, in particular to a novel utilization of solar hot water temperature difference to drive pipeline circulation. Background technique [0002] It is a relatively common phenomenon that the use of household solar energy in winter in cold areas is affected by the environment and cannot be used normally. In order to overcome this problem, there are heating cables on the market. The heating power of the heating cable varies slightly according to the use environment, with an average of 1W / m. According to the installation position of the solar collector, it is generally installed on the roof of the living room. According to the normal laying distance of the water supply pipeline, the length of the water supply pipe on the user side is 5m. Daily power consumption P=15W / 1000*24=0.36kW*h. Electric energy is a high-grade energy, and it is very wasteful to use i...

AI Technical Summary

Problems solved by technology

[0006] The patent with the application number 201320027618.8 prevents pipelines from freezing by using variable frequency micro-pumps, and also uses a temperature measurement and control system. able to save energy

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