KR-20260063872-A - MARINE STRUCTURE COATING MANAGEMENT SYSTEM

KR20260063872AKR 20260063872 AKR20260063872 AKR 20260063872AKR-20260063872-A

Abstract

The present invention discloses a paint management system for an offshore structure. In a paint management system for an offshore structure to which a sacrificial anode cathodic protection (SACP) system is applied to prevent corrosion of the hull through a sacrificial anode electrically connected to the hull, the system may include a calculation unit that calculates the current paint status of the hull using a measurement value from the SACP system.

Inventors

이민정

Assignees

삼성중공업 주식회사

Dates

Publication Date: 20260507
Application Date: 20241031

Claims (5)

In a paint management system for an offshore structure equipped with a Sacrificial Anode Catalytic Protection (SACP) system that prevents hull corrosion through a sacrificial anode electrically connected to the hull, A marine structure painting management system comprising a calculation unit that calculates the current painting status of the hull using the measurement value from the above SACP system.
In paragraph 1, It further includes a monitoring unit that monitors the measurement value and the current paint condition measured in the above SACP system, and The above measurements include data on the potential of the hull, the potential of the sacrificial anode, and the current flowing through the hull and the sacrificial anode, and The above calculation unit calculates the current paint condition through Cathodic Protection analysis using the above measurement value, Painting management system.
In paragraph 2, A paint management system in which the above-described operation unit predicts the paint life of the hull using function data regarding the paint condition of the hull and the above-described measurement value.
In paragraph 3, A paint management system in which the monitoring unit determines that paint repair or replacement of the hull is necessary and generates an alarm when the paint condition of the hull exceeds a standard value.
In paragraph 2, A coating management system in which the above-mentioned operation unit predicts the lifespan of the sacrificial anode using function data for the above-mentioned measured value of the sacrificial anode.

Description

Marine Structure Coating Management System The present invention relates to a marine structure paint management system capable of monitoring the paint condition of a hull and predicting the paint life of a hull in a marine structure to which the Sacrificial Anode Method (SACP) is applied. The hull, which is the outer plating of marine structures such as ships and offshore plants, is not only painted to prevent corrosion caused by seawater but is also equipped with a cathodic protection system. Cathodic protection is a method that prevents corrosion by lowering the potential of the steel used for the hull, and Sacrificial Anode Cathodic Protection (SACP) is an example of cathodic protection. The sacrificial anode method utilizes the property that corrosion occurs first in metals with a high ionization tendency, i.e., low-potential metals, by electrically connecting a metal with a lower potential than the hull (e.g., aluminum, magnesium, zinc, etc. to iron). By electrically connecting a metal (sacrificial anode) having a lower potential than the hull to the hull, the sacrificial anode corrodes before the hull due to the potential difference, thereby protecting the hull surface around the sacrificial anode from corrosion. When the hull is well-painted, the area where the paint peels off and the bare steel is exposed is small, so the rate of consumption of the sacrificial anode is slow, and the area covered by the sacrificial anode against the hull's corrosion is relatively large. However, as time passes, as the paint deteriorates or is damaged, the rate of consumption of the sacrificial anode increases, and the area covered by the sacrificial anode against the hull's corrosion becomes relatively smaller. As sacrificial anodes are consumed, there are limitations to their protective capabilities; therefore, maintenance is required to continuously prevent hull corrosion when paint deterioration and damage become severe. Accordingly, it is necessary to monitor the condition of the hull paint to determine the maintenance schedule, while also predicting its lifespan based on its current state. FIG. 1 briefly illustrates the SACP system provided to the marine structure of the present invention. Figure 2 is a detailed drawing of the SACP system of Figure 1. Figure 3 is a drawing showing a paint management system that monitors the paint condition of the hull and also predicts the paint life of the hull using the SACP system of Figure 2. The various features and benefits of the non-limiting embodiments of this specification may become more apparent from a review of the detailed description in conjunction with the accompanying drawings. The accompanying drawings are provided for illustrative purposes only and should not be construed as limiting the claims. Unless expressly stated otherwise, the accompanying drawings are not to be drawn to scale. For clarity, various dimensions in the drawings may be exaggerated. Exemplary embodiments will now be described more fully with reference to the attached drawings. The present invention relates to a paint management system (20) that monitors the paint condition of a hull (100) in real time using a SACP system (10) installed on a hull (100) without direct inspection by a person or inspection using an ROV (remotely operated vehicle), and predicts the future paint life of the hull (100) and the life of the sacrificial anode (110) of the SACP system (10) using the measured values from the SACP system (10) and data on the behavioral environment of the hull (100). The hull (100) may refer to the outer plating of an offshore structure. The offshore structure includes ships and offshore plants having a floating hull (100). The hull (100) is provided with a metal material. For example, the material of the hull (100) may be steel, and in the present invention, the case where the material of the hull (100) is steel will be described as an example. Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. FIG. 1 briefly illustrates the SACP system provided in the marine structure of the present invention, and FIG. 2 is a detailed drawing of the SACP system of FIG. 1. We will examine the SACP system (10) with reference to FIG. 1 and FIG. 2. The SACP system (10) provided to the marine structure is connected to the hull (100). The SACP system (10) may include the hull (100), a sacrificial anode (110), and a reference electrode (120). Multiple sacrificial anodes (110) and reference electrodes (120) may each be provided. The SACP system (10) may be installed at one or more locations on the marine structure. A sacrificial anode (110) can be mounted on the hull (100) to protect the hull (100) from corrosion. The sacrificial anode (110) can be installed directly on the hull (100) or electrically connected to the hull (100) via a wire. The sacrificial anode (110) can be installed below the waterline of the marine structure so as to be exposed to seaw