Solar heat-conducting medium circulation automatic adjustment driving method

Abstract

The invention discloses a solar heat-conducting medium circulation automatic adjustment driving method. The solar heat-conducting medium circulation automatic adjustment driving method comprises the steps that an electric field and a magnetic field are applied to a heat-conducting medium in a connecting pipeline between a solar heat collector and a water tank, the magnitude or direction of the electric field and magnetic field intensity is adjusted according to the temperature of the water tank so as to change the magnitude or direction of Lorentz force obtained by the heat-conducting medium,and thus the flowing direction and speed of the heat-conducting medium are changed so as to strengthen or suppress circulation of the heat-conducting medium. According to the method, a circulation mode of the solar heat-conducting medium is changed through magnetic force drive, whether the circulation of the heat-conducting medium needs to be strengthened or suppressed or not is judged according to the solar illumination intensity and the water tank temperature of a solar water heater, the process is simple, automatic adjustment is achieved, and the problem of non-heating or overheating existing in solar heat utilization is solved. Meanwhile, a water storage tank is protected, and the life of a solar water heating system is prolonged.

Description

technical field [0001] The invention relates to a method for driving the circulation of a solar heat-conducting medium and improving the phenomenon that a solar water heater is not heated due to poor circulation or overheated due to excessive light, and belongs to the technical field of solar thermal utilization. Background technique [0002] With the popularization of solar thermal utilization technology and the need for energy conservation and emission reduction, there are more and more solar thermal utilization projects in high-rise buildings. Many provinces and cities have promoted and implemented the policy of mandatory installation of solar water heaters in high-rise buildings. However, due to air blockage, reverse slope and other reasons, the circulation of the heat transfer medium is not smooth, causing frequent problems of solar energy not heating. [0003] In order to solve the above problems, circulation pumps are often used in the industry to force the heat trans...

AI Technical Summary

Problems solved by technology

However, due to air blockage, reverse slope and other reasons, the circulation of the heat transfer medium is not smooth, causing frequent problems of solar energy not heating

[0003] In order to solve the above problems, circulation pumps are often used in the industry to force the heat transfer medium to circulate, such as a solar water heater that passively circulates the heat transfer medium disclosed in Chinese patent document CN2308054Y, but the mechanical parts are easy to be damaged due to long-term operation, and accompanied by noise and vibration, affecting Daily life of residents, and the circulation process cannot be automatically adjusted according to the temperature of the heat transfer medium

[0004] In addition, when the sunlight intensity is too strong, solar overheating is prone to occur, endangering system safety and personal health

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