Solar water heater with constant-pressure leakproof heat preservation box and working process

Abstract

The invention discloses a solar water heater with a constant-pressure leakproof heat preservation box and further discloses a working flow of the solar water heater. The solar water heater comprises an installation base, a heat absorption pipe, the heat preservation box and a pipeline system communicating with the heat absorption pipe and the heat preservation box, wherein a solar energy photovoltaic board wraps the surface of the heat preservation box; and a cleaning assembly and a pressure regulating assembly are arranged in the heat preservation box. According to the solar water heater withthe constant-pressure leakproof heat preservation box and the working process, through the cooperative action of the cleaning assembly and the pressure regulating assembly, dirt inside the heat preservation box can be conveniently cleaned regularly, the phenomenon that the heat absorption pipe is damaged and leaks water in cold seasons in north regions can be prevented, the installation base canadapt to typhoon climates in south regions, and damage of strong wind to equipment can be prevented.

Description

technical field [0001] The invention relates to a water heater, in particular to a constant-pressure leak-proof solar water heater and a working process. Background technique [0002] With the increasing scarcity of non-renewable energy on the earth, solar energy, as a clean resource, has increasingly entered people's lives. Among them, solar water heaters are one of the most widely used daily necessities for people to use solar energy. A heating device that can be converted into heat energy to heat water from low temperature to high temperature to meet the needs of hot water in people's life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat plate solar water heaters according to their structure. Water heaters are the main products, accounting for 95% of the domestic market share. Vacuum tube household solar water heaters are composed of heat collecting tubes, water storage tanks, brackets and other related parts. The conversion of...

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Problems solved by technology

[0002] With the increasing scarcity of non-renewable energy on the earth, solar energy, as a clean resource, has increasingly entered people's lives. Among them, solar water heaters are one of the most widely used daily necessities for people to use solar energy. A heating device that can be converted into heat energy to heat water from low temperature to high temperature to meet the needs of hot water in people's life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat plate solar water heaters according to their structure. Water heaters are the main products, accounting for 95% of the domestic market share. Vacuum tube household solar water heaters are composed of heat collecting tubes, water storage tanks, brackets and other related parts. The conversion of solar energy into heat mainly depends on vacuum heat collecting tubes, which use hot water to float The principle of cold water sinking makes the water produce microcirculation to obtain the required hot water. However, in the process of heating the cold water in the collector, a large amount of scale will be generated, which will have a great impact on the conversion efficiency and service life of the solar water heater. Impact; for the scale stored in the water storage tank, due to the enlarged internal space, manual treatment can be processed, but it is difficult to deal with the scale in the heat collecting tube, so after many years of use of solar water heaters, most of the solar water heaters need to replace the heat collector. Satisfying the use requirements greatly increases the maintenance cost of the user. The Chinese patent application number is 201720476109.1. It is recorded that: it includes a cleaning mechanism and a control mechanism for controlling the work of the cleaning mechanism. The liquid storage tank is isolated from the inner cavity of the water storage tank and the cleaning pipe distributed in the collector pipe and the confluence pipe of the solar water heater. The top of the cleaning pipe below the liquid storage tank communicates with the bottom of the liquid storage tank. The bottom end is connected through the cleaning pipe arranged in the confluence pipe; the pipe wall of the cleaning pipe is provided with a number of injection ports facing the heat collecting pipe and the pipe wall of the confluence pipe, and the liquid storage tank is filled with cleaning heat collecting pipe and confluence pipe cleaning fluid

The invention is applied to solar water heaters, which can automatically remove the scale inside the heat collector, and can greatly improve the service life and heat conversion efficiency of solar water heaters. However, the cleaning system of this patent is not suitable for areas with poor water quality. Remove stubborn scale, and use in cold areas is prone to water leakage

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