Solar heat-conducting medium automatic adjustment circulation driving method

Abstract

A solar heat-conducting medium automatic adjustment circulation driving method, comprising 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, and the magnitude or the direction of the electric field and the magnetic field intensity is adjusted according to the temperature of the water tank so as to change the magnitude or the direction of Lorentz force obtained by the heat-conducting medium, so that the flowing direction and speed of the heat-conducting medium are changed, and the circulation of the heat-conducting medium is enhanced or inhibited. According to the method, the circulation mode of the solar heat-conducting medium is changed through magnetic driving, whether circulation of the heat-conducting medium needs to be enhanced or restrained or not is judged according to the solar illumination intensity and the temperature of the water tank of the solar water heater, the process is simple, automatic adjustment is achieved, and the problem that solar heat utilization is not hot or too hot is solved. Meanwhile, the water storage tank is protected, and the service life of the solar water heating system is prolonged.

Description

[0001] This application is a divisional application of a patent application titled "Automatically Regulating Circulation Driving Method for Solar Thermal Conductive Medium". The original application date is March 9, 2020, and the application number is 202010159627.7. technical field [0002] The invention relates to the technical field of solar heat utilization, in particular to a method for automatically adjusting and circulating a solar heat-conducting medium. Background technique [0003] 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 proble...

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

[0004] 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

[0005] In addition, when the sunlight intensity is too strong, solar overheating is prone to occur, endangering system safety and personal health

Images