Electronic anode rod

Abstract

The invention discloses an electronic anode rod. The electronic anode rod is characterized by comprising a titanium and iridium coated electronic anode, a metal pipe support body loosely sleeved with the titanium and iridium coated electronic anode, and a control circuit board positioned on the same end parts of the titanium and iridium coated electronic anode and the metal pipe support body; the metal pipe support body is connected to an electric potential control terminal of the control circuit board. Through adoption of the structure, the titanium and iridium coated electronic anode is utilized to output voltage, and a function of preventing a water heater inner container and the like from corrosion is realized through the principle of cathodic protection; cathodic protection is that a great amount of electrons are supplemented to protected metal to ensure that the whole protected metal is in a state that electrons are surplus, all points of the surface of the metal are identical in negative potential and metal atoms do not lose electrons easily to become ions to be dissolved in a solution, so that effects of preventing hydrogen from generating and corrosion resistance can be achieved.

Description

technical field [0001] The invention relates to an electronic anode rod, in particular to an electronic anode rod which is pollution-free and does not require subsequent maintenance. Background technique [0002] Due to the serious corrosion of water heater inner tanks, most manufacturers of water heater inner tanks use magnesium rods to control inner tank corrosion problems. However, this method has the following disadvantages: 1. The potential of the magnesium rod is too negative, which is prone to overprotection; 2. The consumption of the magnesium rod is fast, the anti-corrosion life is short, and it needs to be replaced frequently, and the after-sales cost is high; 3. The magnesium rod The decomposition product in water is magnesium carbonate, which forms flocculent precipitates together with calcium carbonate, which affects water quality; 4. The added element aluminum in magnesium rods, its decomposition product is the main element that causes senile dementia. Researc...

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Problems solved by technology

However, this method has the following disadvantages: 1. The potential of the magnesium rod is too negative, which is prone to overprotection; 2. The consumption of the magnesium rod is fast, the anti-corrosion life is short, and it needs to be replaced frequently, and the after-sales cost is high; 3. The magnesium rod The decomposition product in water is magnesium carbonate, which forms flocculent precipitates together with calcium carbonate, which affects water quality; 4. The added element aluminum in magnesium rods, its decomposition product is the main element that causes senile dementia

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