KR-20260063883-A - CONTROL DEVICE OF AIR LUBRICATION SYSTEM

KR20260063883AKR 20260063883 AKR20260063883 AKR 20260063883AKR-20260063883-A

Abstract

A hull stress monitoring system control device according to one embodiment of the present invention is a device capable of efficiently controlling the amount of air injected by an air injection unit for each region by using hull deformation data from a strain sensor. An air lubrication system control device according to one embodiment of the present invention includes a hull stress monitoring system comprising a strain sensor installed on the bottom of a hull to collect hull deformation data, an air injection unit installed on the bottom of a hull to inject compressed air, and an air lubrication system comprising a flow control valve that controls the air flow rate of the air injection unit, and a control system that controls the opening rate of the flow control valve based on the hull deformation data. The control system controls the opening rate of the flow control valve such that the air flow rate injected on the bottom of the hull increases as the hull deformation value included in the hull deformation data increases.

Inventors

김혜미

Assignees

에이치디한국조선해양 주식회사

Dates

Publication Date: 20260507
Application Date: 20241031

Claims (5)

A hull stress monitoring system including a strain sensor installed on the bottom surface of the hull to collect hull deformation data; An air lubrication system comprising an air injection unit installed on the bottom surface of the hull to inject compressed air, and a flow control valve to regulate the air flow rate of the air injection unit; and A control system for controlling the opening rate of the flow control valve based on the above hull deformation data, and The above control system adjusts the opening rate of the flow control valve so that the larger the hull deformation value included in the hull deformation data, the greater the air flow rate sprayed onto the bottom surface of the hull. Air lubrication system control unit.
In paragraph 1, The bottom surface of the hull is divided into multiple regions, and The strain sensor, the air injection unit, and the flow control valve are each installed in the plurality of divided areas, and The above control system controls the opening rate of the flow control valve for each of the divided plurality of regions, Air lubrication system control unit.
In paragraph 2, The bottom surface of the hull is divided into a plurality of regions including the left bow, right bow, left stern, and right stern. Air lubrication system control unit.
In paragraph 1, The above air lubrication system An air supply unit for supplying compressed air, and an air supply pipe for delivering the compressed air to the air injection unit, Air lubrication system control unit.
In paragraph 1, The above control system controls the opening rate of the flow control valve by further considering at least one of the ship's speed, wind direction, and wind speed. Air lubrication system control unit.

Description

Air Lubrication System Control Device The present invention relates to an air lubrication system control device for controlling an air lubrication system. An Air Lubrication System (ALS) is a technology that improves the efficiency of a ship's navigation. It improves navigation efficiency by reducing friction between the ship and the water through the supply of bubbles to the outer surface of the hull below the waterline. Conventional air lubrication systems regulate the injection volume of compressed air based on ship speed. However, seawater resistance values can vary in different regions of a hull during operation. Since conventional air lubrication systems control the injection volume based on the same ship speed, they may not adequately reflect the differing seawater resistances in each region, making efficient control difficult. FIG. 1 is a block diagram of an air lubrication system control device according to one embodiment of the present disclosure. FIG. 2 is a drawing for explaining an air lubrication system control device according to one embodiment of the present disclosure. FIG. 3 illustrates the bottom surface of a hull according to one embodiment of the present invention. The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the invention to specific embodiments, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and/or" includes a combination of a plurality of related described items or any of a plurality of related described items. Terms such as "~part," "~section," "~part," etc. may be used to describe various components, but said components should not be limited by said terms. These terms may refer not only to physically or visibly distinguishable components but also to descriptions of the function or configuration of a relevant part, even if the distinction or division is not clearly defined. The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to specify the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application. In the description below, terms related to direction such as "front," "rear," "side," "front," "back," "up and down," "top," "upper," "top," "bottom," "lower," "bottom," and "left and right" are defined based on the vehicle or vehicle body. Furthermore, while terms such as "first," "second," etc., may be used to describe various components, the order, size, location, or importance of these components is not limited by these terms; they are named solely for the purpose of distinguishing one component from another. Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. FIG. 1 is a block diagram of an air lubrication system control device according to one embodiment of the present disclosure. FIG. 2 is a drawing for explaining an air lubrication system control device according to one embodiment of the present disclosure. Referring to FIGS. 1 and 2, an air lubrication system control device (100) according to one embodiment of the present disclosure may include a hull stress monitoring system (110), a control system (120), and an air lubrication system (ALS) (130). The hull stress monitoring system (110) is a system for measuring the force applied to the hull by waves or wind, and can collect data on the expansion or contraction length of the hull in