Anti-corrosion device and water heater

Abstract

The invention discloses an anticorrosion device and a water heater, which belong to the technical field of water heaters. In the anticorrosion device, a protective metal and a cathode are located outside a water storage tank and are in contact with an ion solution. The protective metal is connected to an auxiliary anode in the water storage tank, and the cathode is connected to the water storage tank. The auxiliary anode is insulated and connected to the water storage tank. Due to the different activity of the protective metal and the cathode, under the action of air, cathode, ion solution and the protective metal, the protective metal is corroded and loses electrons to provide electrons to the water storage tank through the cathode, thereby forming an electronic Migration, the water storage tank is protected; in addition, the protective metal is set outside the water storage tank, the corrosion of the protective metal will not pollute the water in the water storage tank, and the protective metal is not in contact with the high temperature water in the water storage tank, reducing the protection metal Self-corrosion, prolonging the service life of the protective metal. The water heater adopts the above-mentioned anti-corrosion device, does not need an external power supply, is more energy-saving, will not be affected by power failure, and can form long-term protection for the inner tank.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to an anti-corrosion device and a water heater using the anti-corrosion device. Background technique [0002] In life or industrial production, various water storage containers are often used, because the clean water prepared by the water plant is not 100% pure, and usually contains sediment, mineral ions, residual chlorine, different colors, dissolved oxygen, etc. Especially in the heated state, dirt and impurities are deposited in the container. After long-term use, it is easy to cause corrosion of the container, affect the performance of the container, and shorten the service life. [0003] In water heaters, the corrosion of the inner tank is serious. At present, magnesium rods are used to control the corrosion of the inner tank. The magnesium rods are installed in the inner tank of the water heater to contact with water, and the residual substances after the reaction of th...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an anti-corrosion device to solve the technical problems in the prior art that the water storage container is easy to corrode, the magnesium rods pollute the water in the water storage container, and the utilization rate of the magnesium rods is low

[0006] Another object of the present invention is to provide a water heater to solve the technical problem in the prior art that the magnesium rod protecting the inner tank pollutes the water in the inner tank of the water heater

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