JP2011078274A - Electric generator for marine hose - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric generator for a marine hose, which eliminates the need for installation of a battery to a marine hose and supplies power to an electronic device installed to the marine hose. <P>SOLUTION: The generator for a marine hose includes: a permanent magnet 42; a device body 41 provided with a magnet path 41a storing the permanent magnet 42 movably in its inside and mounted to a marine hose; and a plurality of coils 43 provided along the magnet path 41a. When the device body 41 is oscillated together with a submarine hose 3 due to a marine phenomenon, therefore, the permanent magnet 42 moves in the magnet path 41a of the device body 41 so as to allow each coil 43 to generate an induced electromotive force. Even if a battery is not installed to the submarine hose 3, power is supplied to an electronic device such as a leakage detector 30 installed to the submarine hose 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a power generation device for a marine hose for supplying electric power to an electronic device installed in the marine hose.

  Conventionally, in a marine hose used for transporting crude oil between a tanker and a crude oil tank, a hose line shape monitoring system for monitoring the hose line shape of a marine hose at sea or in the sea or leakage of crude oil from the marine hose A leak monitoring system for detection is known (see, for example, Patent Document 1).

  In the hose line shape monitoring system and the leakage monitoring system, it is necessary to supply power to electronic devices such as GPS devices and transmitters provided in the marine hose. It is necessary to install.

JP 2005-308523 A

  When the battery is installed in the marine hose as described above, a battery that can be used for a long time is required in consideration of the maintenance of the marine hose. However, a battery that can be used for a long time is large and is not suitable for installation in a marine hose in terms of handling the marine hose. In addition, since it is difficult to charge or replace the battery at sea or underwater, the maintenance cost increases.

  An object of the present invention is to provide a power generation apparatus for a marine hose that can supply power to an electronic device installed in the marine hose without the need for installing a battery in the marine hose.

  A power generation device for a marine hose that generates electric power supplied to an electronic device provided in a marine hose, wherein a permanent magnet and a magnet passage in which the permanent magnet is movably accommodated are provided. An apparatus main body attached to the hose and a plurality of coils provided along the magnet passage are provided.

  As a result, an induced electromotive force is generated in each coil by the permanent magnet moving in the magnet passage of the device main body. Therefore, if the device main body swings together with the marine hose due to the influence of sea conditions such as waves, ocean currents, tides, etc. The magnet moves through the magnet passage, and an induced electromotive force is generated in each coil.

  According to the present invention, when the main body of the apparatus swings together with the marine hose due to the influence of sea conditions, the permanent magnet can move through the magnet passage and generate an induced electromotive force in each coil. There is no need for installation, and power can be supplied to the electronic device installed in the marine hose.

1 is a schematic configuration diagram of a crude oil transportation apparatus showing an embodiment of the present invention. Side view of submarine hose Side cross-sectional view of the main part of the submarine hose to which the power generation device and the battery are attached Plan sectional view of the power generator Circuit diagram of coil and capacitor

  FIG. 1 shows a crude oil transportation apparatus for connecting crude oil tanks anchored on the sea and a crude oil tank on land to transport crude oil between the tanker and the crude oil tank. This crude oil transport device is provided to connect a pipeline 1 extending from the crude oil tank to the seabed, a mooring buoy 2 for circulating crude oil to be transported and mooring a tanker, and a pipeline 1 and a buoy 2. A submarine hose 3 and a floating hose 4 for connecting the buoy 2 and the tanker. Crude oil in the tanker is circulated in the order of the floating hose 4, the mooring buoy 2, the submarine hose 3, and the pipeline 1. It will be stored inside.

  The submarine hose 3 includes a flexible hose body 10 and a connecting member 20 that is provided at both ends of the hose body 10 and connects the end of the hose body 10 to the end of another hose body 10. It is configured.

  The hose body 10 includes a first inner tube layer 11, a first pressure-resistant cord layer 12, a body wire layer 13, a second pressure-resistant cord layer 14, a cord cover layer 15, a buffer material layer 16 and a second inner tube in order from the radially inner side. It has a tube layer 17, a third pressure cord layer 18, and a cover rubber layer 19. The first inner tube layer 11 and the second inner tube layer 17 are made of an oil-resistant rubber material such as NBR, and the first inner tube layer 11 forms a crude oil passage having a diameter of about 500 millimeters (20 inches). ing. The first pressure-resistant cord layer 12, the second pressure-resistant cord layer 14, and the third pressure-resistant cord layer 18 are rubber sheets having oil resistance with cords made of polyester, nylon, metal, or the like. The body wire layer 13 includes a body wire 13a made of a hard steel wire spirally wound over the entire axial direction of the hose body 10, and a rubber material 13b such as SBR and NR filled in a gap between the body wires 13a. It consists of. The code cover layer 15 and the cover rubber layer 19 are made of a rubber material such as SBR, CR, or NR. The buffer material layer 16 is made of a sponge-like member such as open-cell foamed urethane.

  The connecting member 20 is made of a metal cylindrical member having a flange 21 at one end. A plurality of ring-shaped ribs 22 extending in the circumferential direction are provided on the outer peripheral surface on the other end side of the connecting member 20, and the first pressure-resistant cord layer 12 and the third pressure-resistant cord layer 18 of the hose body 10 are provided on each rib 22. The hose body 10 and the connecting member 20 are coupled by the engagement of the bead wires 12a and 18a provided at the end of the body wire or the body wire 13a of the body wire layer 13. The rib 22 with which the bead wire 18a is engaged is provided with a hole 22a that allows one end side and the other end side of the connecting member 20 to communicate with each other. The flange 21 is provided with a plurality of bolt holes 21 a for fixing the connecting member 20 and the connecting member 20 of another submarine hose 3 with bolts 23.

  The submarine hose 3 includes a leak detection device 30 for detecting leakage of crude oil due to breakage of the hose body 10, a power generation device 40 of the present invention for generating electric power supplied to the leak detection device 30, and a power generation device. And a battery 50 for storing the power generated by the power supply 40.

  The leak detection device 30 includes a pressure sensor 31 for detecting a change in pressure in the buffer material layer 16 and a transmitter 32 for transmitting a signal detected by the pressure sensor 31 to a monitoring device (not shown). ing.

  The pressure sensor 31 is an electronic pressure sensor such as a silicon diaphragm type, and is housed in a case 33 provided on the flange 21 side of the rib 22 with which the bead wire 18a is engaged together with the transmitter 32. The pressure sensor 31 detects a change in pressure in the buffer material layer 16 that changes due to leaked crude oil through a hole 22 a provided in the rib 22.

  The power generation device 40 includes an annular device main body 41 extending in the circumferential direction on the outer peripheral portion side of the flange 21, a permanent magnet 42 provided movably in the device main body 41, and a plurality of coils provided in the device main body 41. 43.

  The apparatus main body 41 is made of a non-magnetic member, and is fixed to a disk-shaped bracket 44. The bracket 44 is flanged by a bolt 23 when connecting the connecting member 20 and the connecting member 20 of another submarine hose 3. 21 is attached. Further, an annular magnet passage 41a in which the permanent magnet 42 is movably accommodated is formed in the apparatus main body 41.

  The permanent magnet 42 is made of a ferrite magnet, an alnico magnet, or the like, and is formed in an arc shape so as to be movable in the magnet passage 41a. A plurality of rollers 42a that rotate in contact with the magnet passage 41a are provided on the outer periphery of the permanent magnet 42, and the permanent magnet 42 moves in the magnet passage 41a when the apparatus main body 41 swings. It is like that.

  Each coil 43 is configured by winding an electric wire in a cylindrical shape between the outer surface of the apparatus main body 41 and the magnet passage 41a, and is arranged along the magnet passage 41a.

  The battery 50 includes a diode bridge circuit 51 for rectifying the voltage of power generated in each coil 43, a first capacitor 52 including an electric double layer capacitor for storing the power rectified in the diode bridge circuit 51, and a first capacitor. A voltage converter 53 including a DC-DC converter for converting the electric power stored in 52 into a predetermined voltage, and a second capacitor 54 for storing the electric power converted into the predetermined voltage in the voltage converter 53. Have.

  In the crude oil transportation apparatus configured as described above, the mooring buoy 2 moves on the sea surface due to sea conditions such as waves, ocean currents, and tides. The permanent magnet 42 moves in the magnet passage 41a by its own weight. Thereby, an induced electromotive force is generated in the coil 43, and the generated induced electromotive force is stored in the battery 50.

  Further, when the hose body 10 of the submarine hose 3 is broken and the crude oil leaks, the leaked crude oil flows into the buffer material layer 16 and the pressure in the buffer material layer 16 changes. The pressure sensor 33 detects through the 22 holes 22a, and the transmitter 32 transmits a signal related to the detection result of the pressure sensor 31 to the monitoring device or the like by the electric power of the battery 50. Thereby, the leak of the crude oil from the submarine hose 3 is detected reliably.

  Thus, according to the power generating device for a marine hose of the present embodiment, the permanent magnet 42 and the magnet passage 41a in which the permanent magnet 42 is movably accommodated are provided, and the device attached to the submarine hose 3 is provided. Since the main body 41 and the plurality of coils 43 provided along the magnet passage 41a are provided, when the apparatus main body 41 swings together with the submarine hose 3 due to sea conditions, the permanent magnet 42 passes through the magnet passage 41a of the apparatus main body 41. It is possible to generate an induced electromotive force in each coil 43 by moving, and electric power is supplied to an electronic device such as the leakage detection device 30 installed in the submarine hose 3 without installing a battery in the submarine hose 3. Can be supplied.

  Further, since the magnet passage 41a is formed in an annular shape extending in the circumferential direction of the outer peripheral portion of the submarine hose 3, the permanent magnet 42 can be moved even when the submarine hose 3 swings in any direction, It is possible to reliably generate an induced electromotive force in the coil 43.

  In addition, since the permanent magnet 42 is provided with a plurality of rollers 42a that rotate in contact with the magnet passage 41a around the permanent magnet 42, the movement resistance of the permanent magnet 42 relative to the magnet passage 41a can be reduced, and the submarine hose 3 can be reduced. The permanent magnet 42 can be moved even with a slight swing.

  Further, since the power storage device 50 for storing the power generated by the power generation device 40 is provided, power can be supplied from the power storage device 50 to the electronic device such as the leakage detection device 30 even when the power generation device 40 does not generate power. Stable supply.

  In the above embodiment, the power generation device 40 is fixed to the flange 21 of the connecting member 20 of the submarine hose 3 via the bracket 44. However, the power generation device 40 is fixed to the outer peripheral portion of the hose body 10. However, similarly to the above embodiment, it is possible to supply electric power to the electronic device installed in the submarine hose 3 without installing a battery.

  In the above embodiment, the power generation device 40 is provided in the submarine hose 3. However, even if the power generation device 40 is provided in the floating hose 4 floating on the sea surface, a battery is installed as in the above embodiment. Even if it does not do, it becomes possible to supply electric power to the electronic device installed in the floating hose 4.

  In the embodiment, the apparatus main body 41 in which the annular magnet passage 41a is formed is shown. However, the apparatus main body 41 is not limited to the annular shape, and the apparatus main body in which the arc-shaped or linear magnet passage is formed. Even if 41 is attached to the outer peripheral portion of the submarine hose 3, it is possible to supply electric power to the electronic device installed in the submarine hose 3.

  In the above-described embodiment, the permanent magnet 42 is provided with a plurality of rollers 42a that rotate in contact with the magnet passage 41a, thereby reducing the movement resistance of the permanent magnet 42 relative to the magnet passage 41a. As shown in the figure, instead of providing the roller 42a in the permanent magnet 42, a plurality of mechanisms such as a ball transfer may be provided in the magnet passage 41a. The permanent magnet 42 can be moved.

  DESCRIPTION OF SYMBOLS 3 ... Submarine hose, 40 ... Electric power generating apparatus, 41 ... Apparatus main body, 41a ... Magnet passage, 42 ... Permanent magnet, 42a ... Roller, 43 ... Coil, 50 ... Electric storage device.

Claims (4)

A power generation device for a marine hose that generates electric power supplied to an electronic device provided in the marine hose,
With permanent magnets,
A magnet passage in which the permanent magnet is movably accommodated is provided, and a device main body attached to a marine hose;
A marine hose power generator comprising a plurality of coils provided along a magnet passage. The marine hose power generator according to claim 1, wherein the magnet passage is formed in an annular shape extending in a circumferential direction of an outer peripheral portion of the marine hose. The marine hose power generator according to claim 1 or 2, further comprising a mechanism for reducing a movement resistance of a permanent magnet with respect to the magnet passage. The power generator for a marine hose according to claim 1, further comprising a capacitor that stores electric power generated in each of the coils.

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