Full-automatic control-corrosion system and application method of solar-energy hot-water storage tank

Abstract

The invention relates to the technical field of metal corrosion resistance, in particular to a full-automatic control-corrosion system and an application method of a solar-energy hot-water storage tank. The system comprises a current-producing assembly (1), auxiliary anodes (8) and cables (10), wherein a cathode tank electric connecting terminal (9) is installed on the outer wall of a hot-water tank (3), the auxiliary anodes (8) are installed on the inner wall of the hot-water tank (3), the cathode tank electric connecting terminal (9) and the auxiliary anodes (8) are respectively in electric connection with the current-producing assembly (1). An integral control circuit (2) is installed on one side of the current-producing assembly (1) and the integral control circuit (2) is in electric connection with the current-producing assembly (1). A liquid level sensor (4) and a temperature sensor (7) are installed on the inner wall of the hot-water tank (3) and the liquid level sensor (4) and the temperature sensor (7) are in electric connection with the integral control circuit (2). The full-automatic control-corrosion system and the application method of the solar-energy hot-water storage tank are simple in structure, convenient to use, low in cost, and convenient to control. The full-automatic control-corrosion system and the application method of the solar-energy hot-water storage tank can adjust output current automatically according to corrosive medium temperature and the liquid level in the hot-water tank so that the hot-water tank is in a protection state at any time.

Description

technical field [0001] The invention relates to the technical field of metal anticorrosion, in particular to a fully automatic corrosion control system for a solar hot water storage tank and a method for using the same. Background technique [0002] Combine a large number of single sets of solar collectors to form a large-scale solar water heating system to provide collective hot water supply for hotels, hospitals, schools, guesthouses, and high-end residential areas. The solar hot water storage tank is used to store the hot water from the collector and the supplementary low-temperature tap water or ground water, which is an important part of the system. Although the corrosion of steel structures in the conventional fresh water environment is relatively light, the high temperature of the water medium in the storage tank reaches 80-90 °C, and the low temperature is 0-10 °C when the water is supplied. The long-term high and low temperature alternation in the tank accelerates t...

AI Technical Summary

Problems solved by technology

The constant potential method requires a stable electrode as a reference. By applying a certain protection current, the steel structure on the inner wall of the storage tank is polarized to the protection potential range. However, no stable potential that can be used in this high temperature environment for a long time has been found so far. reference electrode

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