Installation method of sacrificial anode of embedded ship shell

Abstract

The invention discloses an embedded ship shell sacrificial anode. The embedded ship shell sacrificial anode comprises a ship shell outer plate and a ship longitudinal bone which is arranged on the inner surface of the ship shell outer plate. The embedded ship shell sacrificial anode further comprises a sacrificial anode body and a sacrificial anode base. An installing groove used for installing the sacrificial anode body is arranged on the ship shell outer plate. The installing groove stretches into the inner surface of the ship shell outer plate and cuts off the ship longitudinal bone. The sacrificial anode base is arranged in the installing groove and is fixedly connected with the space between the ship shell outer plate and the ship longitudinal bone. The sacrificial anode body is arranged in the installing groove, the inner surface of the sacrificial anode body is fixed to the sacrificial anode base, and the outer surface of the sacrificial anode body is flush with the ship shell outer plate. A traditional sacrificial anode installing structure is changed, an embedded installing structure type is adopted, corresponding sacrificial anode metal is used in cooperation, it is avoided that the sacrificial anode metal protrudes out of a ship shell, speed loss caused by the situation that the sacrificial anode metal protrudes out of the ship shell during high-speed sailing of a ship is eliminated, and sailing speed loss of 0.3-0.5 knot is effectively avoided.

Description

technical field [0001] The invention relates to a ship, in particular to an installation method for an embedded sacrificial anode of the ship shell. Background technique [0002] The basic principle of metal corrosion shows that: when two different metals are electrically connected in the electrolyte, the metal with a negative electrode potential (that is, a more active chemical property) will always become the anode and be corroded, while the metal with a positive electrode potential will always be corroded. is to become the cathode without being affected. [0003] When the metal shell of the ship is immersed in seawater, because the metal of the ship shell is not a pure ideal metal, but an alloy composed of iron or aluminum and other metal elements, many micro-batteries will be formed. Among them, the potential of iron or aluminum is relatively negative and becomes a micro-anode to be corroded, while carbon or other metal elements become a micro-cathode and will not corro...

AI Technical Summary

Problems solved by technology

[0005] see figure 1 , the traditional ship sacrificial anode metal structure is directly installed on the surface of the hull plate 910 through the base, that is, the sacrificial anode metal 920 protrudes from the surface of the hull outer plate, and this structure will cause the ship to flow through the protruding The water flow in the area of ​​the sacrificial anode changes, which creates additional resistance to the ship and changes the local water flow state of the ship. Especially when the ship is sailing at high speed, this structure will reduce the speed of the ship by 0.3-0.5 knots, affecting the speed and economy of the ship.

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