JP5982458B2 - Ship structure - Google Patents

Description

  The present invention relates to a structure of a ship.

  The ship is provided with a diesel generator for generating electric power. In consideration of recent environmental problems, it is required to use an environmentally friendly generator that reduces fuel consumption and reduces the amount of exhaust gas. Hydroelectric generators and wind power generators are known as environmentally friendly power generators, and those disclosed in, for example, Japanese Patent Application Laid-Open No. 2007-326535 are known as ships equipped with wind power generators.

Disclosure of Japanese Patent Application Laid-Open No. 2007-326535 relates to the invention name “ship with wind power generation device”, and “in a navigating ship, wind resistance is reduced while the wind pressure resistance received by the upper structure of the hull is reduced. To provide a ship with a wind power generator that can be used as a power source for inboard lighting and the like, and can also be used as an energy saving means for reducing fuel consumption and reducing CO ₂ generation. (See paragraph number 0003 of the same publication), “In the upper structure of a ship, the front structure has a front opening on the front surface and penetrates the upper structure. Wind ducts with end openings are provided, wind turbines for wind power generation are installed inside the ducts, and power generation equipment that is operated by the wind turbines is equipped. (Refer to the description of claim 1 of the same gazette specification, etc.), “・ ・ The wind pressure resistance of the relative wind received on the front surface of the superstructure during navigation is greatly reduced. And can contribute to the reduction of fuel consumption of the main engine of the ship, and ・ ・ Equipped with a power generation facility that is operated by the wind turbine, it is possible to effectively use wind power, and It will be possible to cover at least part of the power required on board the ship, and ... during navigation, by the strong air flow that passes through the duct along the hull centerline relatively from the front to the rear, The generation of the vortex of the relative wind that wraps around from the side surface of the superstructure to the rear surface is efficiently prevented, and thus the hull resistance associated with the relative wind received by the superstructure is efficiently reduced. Also ... Even when the width of the upper structure is large, it is possible to sufficiently reduce the wind pressure resistance by sufficiently suppressing the generation of eddy currents that wind around the rear surface of the upper structure. Relative wind toward the object passes through the duct for air flow in a balanced manner in the left-right direction, from the rear end opening that opens toward the rear of the upper structure to the rear along the side of the upper structure. In addition to reducing wind pressure resistance, when adjusting the direction of the hull at the time of berthing or adjusting the position of the hull at a slow speed, the generator in the duct is operated as an electric motor, It can also be used to drive the hull at a slow speed by controlling the wind turbine as a wind power generation fan separately, and by rotating the left and right wind turbines in opposite directions, Effect of mechanical impact on the hull involves so cancel each other to be obtained. And the like (see paragraph numbers 0008 to 0013 of the same publication).

  FIG. 4 is a plan view of a ship with a wind power generator shown as Embodiment 1 of the invention disclosed in Japanese Patent Laid-Open No. 2007-326535. In FIG. 4, reference numeral 101 is a ship, 102 is a superstructure, 103 is a front opening, 104 is a rear end opening, 104a is a side opening, 105 is a duct, 106 is a windmill, 107 is , Generator W is relative wind (in addition, in order to clarify that the sign is the prior art, the applicant has been described by changing to the third digit of the 100th generation).

  Moreover, as an example which provides a hydroelectric generator in floating bodies, such as a ship, the thing disclosed by Unexamined-Japanese-Patent No. 11-208576 is known, for example. The disclosure of Japanese Patent Application Laid-Open No. 11-208576 relates to the invention name “floating platform hydroelectric generator”, and refers to “a plurality of floating platforms tethered against the flow of a river in parallel and in contact with the gap between the floating platforms. The rotating shafts of the water turbines that have been drained are pivotally supported by the respective buoys, and the rotational movements of the water wheels are transmitted to the generators installed on the buoys via the rotating shafts, and power can be generated. (See paragraph number 0012 of the same gazette specification), “In a river with a flow, a plurality of buoys such as ships are installed in parallel in the river width direction through a set gap and set. Power generation provided in a buoy that supports the rotary shaft by connecting the buoys spaced apart from each other with a rotary shaft to support the shaft, bringing the water wheel fastened to the rotary shaft into contact with the water flow in the gap of each floating base The rotation of the turbine is transmitted to the machine so that it can generate power. By making it possible to anchor at a certain position "(see the description of claim 1 of the patent specification of the same publication)," ... Although the power generation capacity is lower than that of the head-type hydropower generation, the unit price of power generation can be made extremely low, and the hydroelectric power generation apparatus of the present invention can be immediately supplied to an area where the electric power is required suddenly, and the required power capacity is met. A plurality of sets of power generation devices can be prepared and the necessary power can be provided, and the number of water turbines can be increased or decreased depending on the river conditions at the desired power generation location. The water turbine can be lifted from the surface of the water and made contactless when the buoy with the power generator is moved, or when there is no power generation. Saisho see paragraph numbers 0038 to 0042).

  FIG. 5 is a plan view for explaining a state where a buoy with a power generation mechanism shown in FIG. 1 in JP-A-11-208576 is tethered in a river. In FIG. 5, reference numeral 201 is a rotating shaft, 202 is a water wheel, 203 is a floating base, 204 is a gap, 205 is a tether, 206 is a tether, 207 is a bearing, 208 is a generator, 209 is an input shaft, 210 is a rotation transmission mechanism, 217 is a water-receiving piece, 218 is a power supply line, 219 is a canopy, 220 is a river (note that the sign is a prior art) For the sake of clarity, the applicant of the present application has changed it to three digits of the two hundreds.

  Although what is shown in FIG. 4 or FIG. 5 is equipped with a hydroelectric generator and a wind power generator as an environmentally friendly generator, the ship shown in FIG. 4 is not equipped with a hydroelectric generator, The floating body such as a ship shown in FIG. 5 is not provided in a ship that navigates by itself. On the contrary, in the conventional ship structure that sails on the water by itself, it was not assumed that a hydroelectric generator was provided.

JP 2007-326535 A JP-A-11-208576

  Therefore, an object of the present invention is to provide a ship structure in which a hydroelectric generator can be provided in a ship that navigates by itself.

In order to solve the above-mentioned problems, the invention according to claim 1 of the present application is directed to a ship structure in a port side ballast tank and a starboard side ballast tank disposed in a ship side region of a ship navigating by itself or on both sides of these ballasts. A hydroelectric generator is provided directly below or in the vicinity of the ship engine room inside the starboard side water tunnel and the starboard side water tunnel that communicates between the tank and the bottom ballast tank from the ship bow to the stern.
And the invention which concerns on Claim 2 of this application WHEREIN: The ship structure of the said Claim 1 WHEREIN: The bow area opening of the said port-side water conveyance tunnel and starboard-side water conveyance tunnel is located under draft.
The invention according to claim 3 of the present application is the ship structure according to claim 2 , wherein the hydroelectric generators disposed in the port side conduit tunnel and starboard side conduit tunnel include the bow region opening and the stern region opening. Alternatively, it is provided in one or both of these neighborhoods.
Furthermore, the invention according to claim 4 of the present application is the ship structure according to claim 2 , wherein the port side side tunnel and the starboard side channel tunnel are formed with a large opening in the bow area, and toward the stern in the middle area. It is characterized by having a constricted structure, and the hydroelectric generator is installed behind the constricted area.
The invention according to claim 5 of the present application is directed to a ship-side ballast tank and a starboard-side ballast tank disposed in a ship-side region of a ship that navigates by itself in the ship structure, or both of these ship-side ballast tanks and a bottom ballast tank. Between the ship's bow and stern, equipped with a port side tunnel and starboard side tunnel where a hydroelectric generator is placed inside, constantly measuring the amount of power generated by the hydroelectric generator and the fuel consumption of the ship, In the correlation between the two, the ship navigation speed is determined.

Since this invention is comprised as mentioned above, there exists an effect described below.
(1) It is possible to provide a hydroelectric generator in the ship, and it is possible to cover a part of the ship's electric power with electric power obtained by the almost hydroelectric generator.
(2) Further, the structure in which the water guide tunnel is narrowed in the middle has an effect that the flow of seawater is accelerated and the hydroelectric generator can be rotated more quickly.

FIG. 1 is a schematic longitudinal sectional view of a ship structure 1 according to the first embodiment. FIG. 2 is a schematic cross-sectional view taken along the line AA. FIG. 3 is a schematic longitudinal sectional view of a ship structure 1 according to a second embodiment of the ship structure according to the present invention. FIG. 4 is a plan view of a ship with a wind power generator shown as Embodiment 1 of the invention disclosed in Japanese Patent Laid-Open No. 2007-326535, FIG. 5 is a plan view for explaining a state where a buoy with a power generation mechanism shown in FIG. 1 in JP-A-11-208576 is tethered in a river.

  An embodiment of the best mode for carrying out a ship structure according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 and FIG. 2 are schematic views of a ship structure 1 according to a first embodiment which is an embodiment for implementing a ship structure according to the present invention. Of these, FIG. It is the longitudinal cross-sectional schematic of the ship structure 1 which concerns, and FIG. 2 is the same AA cross-sectional schematic.

  In FIG. 1, reference numeral 1 denotes a ship structure according to the first embodiment, 2 denotes the ship, 3 denotes a hold (cargo hold), 4 denotes an engine room, 5 denotes a water guide tunnel, and 6 denotes a hydroelectric generator. 7 is a cable, 8 is a main switchboard, 9 is a residential area, 10 is a draft, 11 is an arrow indicating the direction of travel of the ship, and 12 is an arrow indicating the flow of seawater. In FIG. 2, reference numerals 1, 3, and 10 indicate the ship structure 1, hold (cargo hold) 3, and draft 10 according to the first embodiment shown in FIG. 1, respectively, and the remaining reference numerals 5 a and 5 b. Is the port side side tunnel 5a and starboard side channel 5b described as the water guide tunnel 5 in FIG. 1, reference numeral 13 is a ship side outer plate, 14a is a port side ballast tank, 14b is a starboard side ballast tank, 15 is It is a bottom ballast tank.

  First, it is assumed that the ship structure according to the first embodiment is a ship that is capable of navigating by a driving force by a main engine, wind power, power driving by a solar cell or a fuel cell, or the like. As can be seen from FIGS. 1 and 2, in such a ship that can be navigated by itself, in the ship structure 1 according to the first embodiment, the port side water guide tunnel 5 a and starboard side water guide tunnel 5 b are connected to the ship side of the ship. In the port side ballast tank 14a and starboard side ballast tank 14b disposed in the region, or between the both side ballast tanks 14a, 14b and the bottom ballast tank 15 in communication from the bow to the stern. This is a ship structure. In other words, the port side diversion tunnel 5a and starboard side diversion tunnel 5b open to the outside of the ship on the bow side (not shown), respectively, so that seawater flows in as the ship 2 sails and flows to the stern opening. Composed.

  The hydroelectric generator 6 is installed in each of the starboard side tunnel 5a and starboard side tunnel 5b, and an opening portion (illustration is shown) from the bow side to the stern as the ship 2 navigates by itself. The hydroelectric generator 6 generates electric power from seawater taken in from outside. Therefore, the water guide tunnels 5a and 5b are arranged so as to be positioned below the draft 10, and are particularly arranged at positions where they do not come out above the light load draft line.

  If the opening (not shown) of the heading tunnel 5 (5a, 5b) has an opening ratio of about 5% with respect to the cross section of the hull under the draft 10, the ship's hull self-navigation shown by reference numeral 11 is carried out. Electricity can be generated with an excellent effect on the speed, and the generated electric power is supplied to various electric devices in the ship via the cable 7 and the main switchboard 8.

  In the ship structure according to the first embodiment, the position of the hydroelectric generator 6 is not particularly limited as long as it is provided in the middle of the freshwater tunnel 5 (5a, 5b). For example, as shown in FIG. In addition, it may be arranged directly below or in the vicinity of the engine room 4, which is the stern area of the ship structure 1. This is not limited to this position, and may be provided, for example, in the vicinity of the bow opening (not shown), or one or both of the vicinity of the stern opening (not shown) in consideration of maintenance or the like for the hydroelectric generator 6. May be provided. Further, when considering the ship's self-navigation efficiency, it may be better not to allow seawater to flow into the water guiding tunnel 5 (5a, 5b), and a shield door that blocks inflow of seawater to the bow opening (not shown) (Not shown) may be provided.

Next, a ship structure according to a second embodiment of the ship structure according to the present invention will be described in detail with reference to the drawings.
FIG. 3 is a schematic vertical cross-sectional view of the ship structure 1 according to the second embodiment of the ship structure according to the present invention, and corresponds to the vertical cross-sectional schematic view of the ship structure 1 according to the first embodiment shown in FIG. is there. In FIG. 3, reference numeral 20 denotes a ship structure according to the second embodiment, and reference numeral 21 denotes a water guide tunnel in the ship structure 20 according to the second embodiment corresponding to the water guide tunnel 5. The other members are the same as those of the ship structure 1 according to the first embodiment, and are denoted by the same reference numerals.

As is clear from FIG. 3, in the ship structure 20 according to the second embodiment, the water guide tunnel 21 has a large bow opening (not shown) and is narrowed toward the stern in the middle area. And the said hydroelectric generator 6 is installed behind the area | region where the said water conveyance tunnel 21 was narrowed.
By making the bow opening larger than the stern opening, a larger amount of seawater can be taken in along with the ship 2's self-navigation. However, the hydroelectric generator 6 can be driven to generate power efficiently.

  The position of the constricted area of the water guide tunnel 21 may be any position as long as seawater that becomes high speed and high density due to the constriction flows into the hydroelectric generator 6 vigorously, but preferably If it is in front of the hydroelectric generator 6 (the bow side), power can be generated efficiently.

  The present invention is used for ship structures.

1,20 Ship structure according to Examples 1 and 2 2 Ship 3 Hold (cargo hold)
4 Engine room 5 Water transfer tunnel 5a Port side water transfer tunnel 5b Starboard side water transfer tunnel 6 Hydroelectric generator 7 Cable 8 Main switchboard 9 Residential area 10 Drafting 11 Ship traveling direction 12 Seawater flow 13 Ship side skin 14a Port side ballast tank 14b Starboard Side ballast tank 15 Ship bottom ballast tank 21 Water guide tunnel 101 Ship 102 Upper structure 103 Front opening 104 Rear end opening 104a Side opening 105 Duct 106 Wind turbine 107 Generator W Relative wind 201 Rotating shaft 202 Water turbine 203 Floating base 204 Gap 205 Link Material 206 Anchor material 207 Bearing 208 Generator 209 Input shaft 210 Rotation transmission mechanism 217 Water intercepting piece 218 Electric power supply line 219 Canopy 220 River

Claims (5)

A port side tunnel that communicates from the bow of the ship to the stern in the port side ballast tank and starboard side ballast tank located in the ship side area of the ship that is navigating by itself, or between these side ballast tanks and the bottom ballast tank, and A ship structure comprising a hydroelectric generator immediately below or in the vicinity of a ship engine room inside a starboard side tunnel.   The ship structure according to claim 1, wherein a bow area opening of the port side water guide tunnel and starboard side water guide tunnel is located under draft. Hydroelectric generator disposed on the port side water guide tunnel and starboard side water guide the tunnel, according to claim 2, characterized in that provided on one or both of the bow region opening and the stern area opening at or near these Ship structure. The port side and the starboard side tunnels are formed so that the bow area opening is large and is narrowed toward the stern in the middle area, and the hydroelectric generator is installed behind the narrow area. The ship structure according to claim 2 , wherein: A hydroelectric generator is connected between the ship's bow and stern in the port-side ballast tank and starboard-side ballast tank, or between these ship-side ballast tanks and the bottom ballast tank, which are arranged in the ship's side area of a ship that is sailing by itself. A starboard side tunnel and a starboard side tunnel, where the power generation amount of the hydroelectric generator and the fuel consumption of the ship are constantly measured, and the ship navigation speed is determined based on the correlation between the two. Ship structure.

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