KR101791992B1

KR101791992B1 - Cleaning Device for Offshore Chain

Info

Publication number: KR101791992B1
Application number: KR1020150110786A
Authority: KR
Inventors: 조철희; 노유호
Original assignee: 인하대학교 산학협력단
Priority date: 2015-08-05
Filing date: 2015-08-05
Publication date: 2017-11-01
Also published as: KR20170017208A

Abstract

The present invention relates to an offshore chain washing apparatus comprising an upper module fixedly connected to an upper end of a marine chain by a '+' shaped upper module chain coupling unit, a power supply unit and a data transmission / reception unit, The lower battery module is connected to the upper module 10 by a '+' shaped lower module chain engaging part, and a detachable guide protrusion is detachably mounted on the upper part of the upper module 10, A measurement sensor and a pump for transmitting and receiving the measured data to and from the data transmitting and receiving unit are built in. A plurality of wheels that are rotated by the driving motor 24 in contact with the outer circumferential surface of the marine chain, and a plurality of injection nozzles 28 ) And a lower module that moves up and down. The lower module moves up and down the marine attachment on the chain surface. Module, it is possible to remarkably reduce the time and cost for maintenance of the offshore chain, and it is possible to remarkably increase the service life of the offshore chain by monitoring the external force applied to the offshore chain in real time.

Description

Cleaning Device for Offshore Chain

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an offshore chain washing apparatus, and more particularly, to an offshore chain washing apparatus capable of removing marine deposits on the surface of an offshore chain and removing the organisms in the offshore chain and detecting the dynamic reaction of the offshore chain.

The offshore chain is located on the seabed by combining the anchors at the ends with the aim of minimizing the allowable motion radius of floating structures on the sea surface. Such an offshore chain is typically 25 to 30 years in design life and requires ongoing maintenance work. Particularly, as shown in Fig. 1 (a), marine life is attached to the surface of the marine chain, thereby increasing the roughness of the surface of the marine chain, thereby increasing the size of the wave and algae power received by the marine chain, . In order to solve this problem, as shown in FIG. 1 (b), the diver removes the marine attachment directly by diving with the removal means. Such marine attachment removal methods are limited in their working time depending on the climate and require a large amount of cost and manpower.

Korean Patent Laid-Open Publication No. 10-2013-0095009, as shown in Fig. 1 below, includes two or more frames that can be engaged with and detached from each other, and a removing unit and a traveling unit formed on the inner surface of the frame for removing marine life Which removes marine organisms adhering to the strike on an offshore structure, but it is only applicable to pipe-shaped strake and it is not possible to remove offshore marine organisms from the offshore chain. In addition, even when the design of the traveling part is changed, the cable must be installed separately from the floating structure to the device for removing the marine life for driving the removal part and the traveling part, A twisted problem may occur.

Korean Patent Publication No. 10-2013-0095009 (2013.08.27)

In order to solve the problems described above, the present invention can effectively remove the marine attachment on the surface of the marine chain by the lower module moving up and down without cables connected to the floating structure, And an object of the present invention is to provide a marine chain cleaning device capable of significantly increasing the life span of an offshore chain by measuring and transmitting measurement data by sea.

In order to achieve the object, an upper module, which is fixedly coupled to an upper end of a marine chain by an upper module chain coupling unit, and includes a power supply unit and a data transmission / reception unit, and a detachment guide protrusion at a lower portion, And a detachable guide groove for detachably attaching the detachable guide protrusion to the upper portion of the module. The rechargeable battery, the driving motor, and the driving motor, which are charged by the power supply unit, A measurement sensor and a pump for transmitting and receiving the measured data to and from the data transmitting and receiving unit are built in. A plurality of wheels that are rotated by the driving motor 24 in contact with the outer circumferential surface of the marine chain, and a plurality of injection nozzles 28 And is composed of a lower module that moves up and down.

According to another aspect of the present invention, the measurement sensor measures tensile force, bending moment, and shearing force applied to an offshore chain, transmits measured data to the data transmitting and receiving unit, and the data transmitting and receiving unit transmits data measured in the sea have. In addition, the lower module includes a seawater inflow section into which seawater flows, and the inflowed seawater is discharged through a spray nozzle by a pump.

According to another aspect of the present invention, the upper and lower modules are detachably attached to the detachable guide protrusions and the detachable guide grooves 22, respectively, with protruding curved portions and groove curved portions, As shown in Fig.

As described above, the marine chain washing apparatus according to the present invention effectively removes the marine attachment on the surface of the marine chain by the lower module moving up and down, thereby remarkably reducing the time and cost required for maintenance of the marine chain. In addition, by measuring the tensile force, bending moment, and shear force applied to the marine chain at the same time, it is possible to effectively grasp the problematic part in the marine chain at the maritime in real time, thereby remarkably increasing the life span of the marine chain.

Figs. 1 (a) and 1 (b) are photographs of marine creatures attached to existing marine chains and photographs thereof, respectively.
FIG. 2 is a conceptual diagram of a conventional marine biological removal device for an offshore structure. FIG.
3 is a cross-sectional view of a marine chain washing apparatus according to the present invention.
4 (a), 4 (b) and 4 (c) are perspective views of the marine chain washing apparatus according to the present invention when disassembled.
5 is a front view of a marine chain washing apparatus according to the present invention.
6 is a wheel configuration diagram of a marine chain cleaning apparatus according to the present invention.

3 is a cross-sectional view of a marine chain washing apparatus according to the present invention. Referring to FIG. 3, the detailed structure of the present invention will be described below. A cleaning device for connecting to a pipe-shaped offshore chain (A), comprising: an upper module chain coupling part (11) fixed to the upper end of the marine chain (A) And a lower module chain engaging portion 21 on the underside of the upper module 10. The lower module 10 includes a detachable guide protrusion 14, And a removable battery 23 and a driving motor 24 which are charged by the power supply unit 12 and the data transmission / A plurality of wheels 27 (27), which are rotated by the drive motor (24) in contact with the outer circumferential surface of the marine chain (A), and a measurement sensor (25) And a plurality of spray nozzles 28 at the lower part thereof, (20). &Lt; IMAGE >

The power supply unit 12 and the rechargeable battery 23 are connected to each other by the upper module 10 and the lower module 20 so that they can be charged by terminal contact as well as the wireless charging system known in the recent years. The rechargeable battery 23 for supplying power to the driving motor 24 and the measurement sensor 25 of the lower module 20 is mounted inside the lower module 20 moving up and down, Cable.

The measuring sensor 25 measures the tensile force, the bending moment and the shearing force applied to the marine chain A and transmits the measured data to the data transmitting and receiving unit 13 and the data transmitting and receiving unit 13, And transmits the measured data. Accordingly, the manager at sea can monitor the state of the offshore chain (A) in real time. The lower module 20 in which the measurement sensor 25 is installed is provided with a sensor which can move up and down along the marine chain A to check the depth of the water, It can be easily grasped.

The lower module 20 is provided with a seawater inlet 29 through which the seawater is introduced, and the introduced seawater is discharged through the spray nozzle 28 by the pump 26. In the present invention, the means for removing marine deposits is spraying high-pressure water, but it is obvious that means for removing marine deposits through heating, vibration, electricity, etc. can be applied. In addition, a device for removing internal product in the undersea channel disclosed in Korean Patent Laid-Open Publication No. 10-2014-0066829 (2014.06.02) is applied to the lower module of the present invention to remove marine deposits outside the marine chain (A) Internal products may also be removed.

FIG. 5 is a front view of another embodiment of a marine chain washing apparatus according to the present invention. Referring to FIG. 5, the detachment guide protrusion 14 and the detachment guide groove 22 are provided with a protrusion curve portion 14a and a groove curved portion 22a The lower module 20 is rotated by the force of waves and algae or the like so that the position of the detachment guide protrusion 14 and the detachment guide groove 22 is reversed and the protrusion curve portion 14a and the groove curving portion 22a The upper module 10 and the lower module 20 can be easily combined. The projecting curved portion 14a and the groove curved portion 22a are not limited to those shown in FIG. 5, and a known coupling structure such as a spiral shape can be applied.

FIG. 6 is a block diagram of a marine chain washing apparatus according to the present invention. Referring to FIG. 6, the wheel 27 is provided with a contact portion 27a having the same shape as the outer circumferential surface of the marine chain A. Further, the contact portion 27a can be made of a material having a high frictional force to prevent the wheel 27 from being idle. In addition, it is possible to minimize breakage of the marine chain A that may occur when the lower module 20 moves up and down by applying a known suspension device.

Although the present invention has been shown and described with respect to specific embodiments and applications thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone with knowledge will know easily.

A. Ocean Chain 10. Top Module
11. Upper module Chain coupling 12. Power supply
13. Data Transmitter / Receiver 14. Removal Guide Guide
14a. The projecting curve portion 20. Lower module
21. Lower Module Chain Coupling Section 22. Removal Guide Groove
22a. Home curve 23. Rechargeable battery
24. Driving motor 25. Measuring sensor
26. Pump 27. Wheel
27a. Contact portion 28. Injection nozzle
29. Seawater inflow section

Claims

CLAIMS 1. A cleaning device coupled to an offshore chain (A)
A power supply unit 12 and a data transmission / reception unit 13 are built in and fixed to the upper end of the marine chain A by a '+' shaped upper module chain coupling unit 11, and a protrusion curved part 14a An upper module 10 having a formed detachment guide protrusion 14;
A detachable guide protrusion 14 having a protruding curved portion 14a formed at its upper portion and coupled to the lower module 10 by a '+' shaped lower module chain engaging portion 21 is provided at a lower side of the upper module 10, And a removable battery 23 and a drive motor 24 which are charged by the electric power supply unit 12 and the data transmission and reception unit 13 are connected to an offshore chain A A measurement sensor 25 and a pump 26 for measuring and measuring the tensile force, the bending moment, the shearing force and the depth of water attached to the marine chain A are installed, And a lower module (20) having a plurality of wheels (27) rotated by a plurality of nozzles (24) and a plurality of jetting nozzles (28) provided at a lower portion thereof and moving up and down.

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The method according to claim 1,
The lower module 20 is provided with a seawater inlet 29 through which the seawater is introduced and the introduced seawater is discharged by the pump 26 through the injection nozzle 28 and the wheel 27 is connected to the offshore chain (A) is provided with a contact portion (27a) having the same shape as the shape of the outer peripheral surface,

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