SACRIFICIAL ANODE STRUCTURE, APPARATUS FOR DETERMINING CONSUMED STATE OF SACRIFICIAL ANODE, AND DETERMINATION METHOD

摘要

To provide a sacrificial anode structure for determining easily and accurately a consumed state of a sacrificial anode, an apparatus for determining a consumed state of a sacrificial anode, and a determination method.SOLUTION: In a sacrificial anode structure attached to an objective steel material of corrosion protection, and an apparatus for determining a consumed state of a sacrificial anode, the sacrificial anode structure is supported by a compound core metal obtained by connecting a first core metal to a second core metal through a heat-resistant insulator, a connection part of the first core metal and the heat-resistant insulator is disposed at a position so as to be exposed from an end face of a first core metal side of the sacrificial anode when the sacrificial anode is consumed to a required consumption amount, preferably a metal fitting is connected to the first core metal, the metal fitting extending in a direction of the other end face of a second core metal side of the sacrificial anode while having a predetermined distance from the second core metal is disposed so as to be exposed from the surface of the sacrificial anode when the sacrificial anode is consumed to a required consumption amount, and a consumed state of the sacrificial anode is determined by detecting a potential difference, a resistance, and the like of the first core metal and the second core metal.SELECTED DRAWING: Figure 4