JPH10100990A - Marine float structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a marine float such as a submarine moving body and an observation buoy with a fuel cell as a power supply in special so that fuel and oxygen gas bombs can be used as buoyancy materials. SOLUTION: A fuel cell 1 is provided in a marine float. Bombs 2, 3 to supply fuel gas and oxidant gas to the cell 1, as part of a float structure, are arranged at the upper side of a non-pressure-proof shell 1 12. A tank 5 to reserve water generated from the fuel cell 1 is arranged at the lower side to improve stability as a whole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ocean floating body such as a diving vehicle and an ocean observation buoy, and more particularly to a structure of an ocean floating body having a fuel cell as a power source.

[0002]

2. Description of the Related Art In a conventional diving vehicle, a buoyancy body formed of a syntactic foam (a buoyancy material obtained by mixing glass spheres into a resin) and the like is used to realize a buoyancy distribution state that is easy to move in water. It has been practiced to disperse and arrange as appropriate within the outer shell of the non-pressure resistant structure. Further, when a fuel cell is used as a power source, only the required amount of the buoyant body is reduced by reducing the weight of each storage cylinder of hydrogen as a fuel and oxygen gas as an oxidant as much as possible. Therefore, there is no idea to use each of the cylinders as a buoyant body. Regarding the storage of product water generated by the reaction between hydrogen and oxygen in the fuel cell, no consideration has been given to the location of the product water tank from the viewpoint of stabilizing the marine floating body, and the storage level of the generated water tank is almost the same as that of the fuel cell body. The production water tank is installed at a high position.

[0003]

SUMMARY OF THE INVENTION The present invention considers the structure of a floating body structure for an ocean floating body on which a fuel cell is mounted so that the use of a floating body formed of an expensive syntactic foam or the like can be reduced as much as possible. It is an object of the present invention to provide an ocean floating structure in which the stability of the floating body is taken into consideration.

[0004]

Means for Solving the Problems To solve the above-mentioned problems, an marine floating structure according to the present invention comprises a fuel cell as a power source in a marine floating body, and a fuel gas cylinder for supplying a fuel gas to the fuel cell. And an oxygen gas cylinder for supplying oxygen gas to the fuel cell, wherein the fuel gas cylinder and the oxygen gas cylinder constitute at least a part of a floating structure of the marine floating body.

In the above-described marine floating structure of the present invention, attention is paid to the fact that a gas cylinder itself for supplying fuel gas or oxygen gas to a fuel cell as a power source has a function as a buoyant body. Is used as at least a part of the floating body structure, so that expensive syntactic foam buoyant bodies can be omitted or the amount of use thereof can be greatly reduced.

Further, the fuel cell is constituted as a polymer electrolyte fuel cell, and the hydrogen gas is used as the fuel gas to introduce water generated by the power generation reaction of the fuel cell. When the generated water tank connected to the battery is installed below the marine floating body, the generated water has a function as ballast water and helps to lower the center of gravity of the entire marine floating body. This increases the stability of the floating body.

[0007] The marine floating body is configured as a diving vehicle, and includes a propulsion device that operates by receiving power from the fuel cell. The fuel gas cylinder and the oxygen gas cylinder are disposed above the diving vehicle. Thus, each cylinder as a part of the floating structure serves to raise the floating position of the entire dive vehicle, thereby increasing the stability of the dive vehicle.

Further, when the fuel gas cylinder and the oxygen gas cylinder have an elongated shape in the horizontal direction, and these cylinders are arranged so as to extend in the front-rear direction above the diving vehicle, The cylinder also helps to improve the vertical stability of the diving vehicle.

Further, when the ocean floating body is configured as a buoy, and the fuel gas cylinder and the oxygen gas cylinder have a vertically elongated shape, and these cylinders are arranged along the peripheral wall of the buoy. Each cylinder as a floating structure will have the distribution of buoyancy in the marine buoy along the outer periphery of the buoy, and the arrangement of each cylinder elongated vertically will provide buoyancy and stability corresponding to the increase in draft. There is an effect that will be able to be.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view showing a marine floating structure as a first embodiment of the present invention, and FIG.
3 is a perspective view showing the inside of the marine floating structure according to a second embodiment of the present invention, and FIG. 4 is a plan view showing the inside of the marine floating structure shown in FIG.

First, a first embodiment of the present invention will be described. As shown in FIGS. 1 and 2, a diving vehicle as an ocean floating body is provided inside a shell 12 having a non-pressure resistant structure as a power source serving as a power source. The fuel cell 1 is configured to have

The fuel cell 1 is a polymer electrolyte fuel cell. Hydrogen gas as fuel is supplied from a hydrogen gas cylinder 2 containing high-pressure hydrogen gas through an internal pressure regulating valve 2a and a humidifier 7, and Oxygen gas as an oxidizing agent is supplied from an oxygen gas cylinder 3 containing a high-pressure oxygen gas through an internal pressure regulating valve 3a and a humidifier 7.

The generated water generated by the reaction between hydrogen and oxygen in the fuel cell 1 is stored in a generated water tank 5 for supplying water to the humidifier 7 and cooling the fuel cell 1. The cooling water is circulated through a pump 6 from a generated water tank 5 in which an appropriate amount of water is stored in advance.

This diving vehicle has an electric propulsion device on its tail.
The head is equipped with a television camera 9, an illuminating lamp 10 and observation equipment (not shown). The power required for these operations is supplied from the fuel cell 1 via the distribution board 8.

Since the outer shell 12 of the diving vehicle has a non-pressure-resistant structure having a communicating portion with the external water, a buoyant body 4 made of a syntactic foam for securing buoyancy is provided on the upper part. However, in the present embodiment, each of the cylinders 2 and 3 constitutes a part of the floating body structure as having a function as a buoyant body, and each of the cylinders 2 and 3 has a horizontally elongated shape. It is arranged to extend in the front-rear direction at the upper part of the moving body.

The water in the generated water tank 5 has a function as a ballast, and the arrangement of the generated water tank 5 is set below the diving vehicle.

In the diving vehicle of the present embodiment described above, the gas cylinder 2 for supplying fuel gas or oxygen gas to the fuel cell 1 is provided.
Focusing on the fact that 3 itself has a function as a buoyant body, since these cylinders 2 and 3 are used as a part of the floating body structure, the amount of expensive syntactic foam buoyant body 4 used Will be greatly reduced.

Further, the fuel cell 1 is configured as a polymer electrolyte fuel cell, and a generated water tank 5 for storing the generated water generated by the reaction between hydrogen and oxygen in the fuel cell 1 is provided below the diving vehicle. Since it is installed, the generated water has a function as ballast water, which helps to lower the position of the center of gravity of the entire dive vehicle.

Each of the cylinders 2 and 3 as a part of the floating structure is provided on the upper part to raise the floating position as a whole.
M value), thereby increasing the stability of the dive vehicle. Further, since each of the cylinders 2 and 3 is formed to be elongated in the horizontal direction and is disposed so as to extend in the front-rear direction at the upper part of the diving vehicle, each of the cylinders 2 and 3 is arranged vertically. It will also help improve stability.

In this embodiment, since the outer shell 12 has a non-pressure resistant structure in which the inside communicates with the outside water,
Numeral 3 is arranged inside the outer shell 12. When the outer shell 12 has a pressure-resistant structure, the cylinders 2, 3 constituting a part of the floating structure are provided.
A rectifying plate is provided outside the outer shell 12 and covers the cylinders 2 and 3 as a whole in order to reduce resistance during traveling.

Next, a second embodiment of the present invention will be described. As shown in FIGS. 3 and 4, a buoy as an ocean floating body is provided inside an outer shell 32 having a non-pressure-resistant structure for observation and communication. It is configured to include a fuel cell 25 serving as a power supply.

The fuel cell 25 is a polymer electrolyte fuel cell. Hydrogen gas as a fuel is supplied from a hydrogen gas cylinder 21 containing high-pressure hydrogen gas through a circular connection pipe 23, an internal pressure regulating valve 21 a and a humidifier 26. Oxygen gas supplied as well as oxygen gas as an oxidizing agent
The air is supplied from the pipe 22 through a circular connection pipe 23, an internal pressure adjusting valve 22a, and a humidifier 26.

The produced water generated by the reaction between hydrogen and oxygen in the fuel cell 25 is stored in a produced water tank 30 for supplying water to the humidifier 26 and cooling the fuel cell 25. Of the cooling water is performed via a pump 31 from a generated water tank 30 in which an appropriate amount of water is stored in advance.

This buoy has a temperature / humidity observation sensor 29 on the upper part and a data communication device 28,
Electric power required for these operations is supplied from the fuel cell 25 to the distribution board 27.
Is performed via

Since the outer shell 32 of the buoy has a non-pressure-resistant structure having a communicating portion with the external water, in this embodiment, the cylinders 21 and 22 are assumed to have a function as a buoyant body, and the main structure of the buoyant structure is used. Unit. That is, each cylinder 21,
Reference numeral 22 has a vertically elongated shape, and is arranged along the peripheral wall of the outer shell 32 of the buoy.

The water in the generated water tank 30 has a function as a ballast, and the arrangement of the generated water tank 30 is set below the buoy.

In the second embodiment, the distribution of buoyancy is provided along the outer peripheral portion of the buoy, and furthermore, the arrangement of each of the vertically elongated cylinders 21 and 22 along the outer peripheral portion of the buoy allows the generated water to be distributed. In combination with the arrangement of the tank 30 at the lower part of the buoy, there is an effect that buoyancy and stability corresponding to an increase in draft can be obtained.

Also in the case of the second embodiment, since the outer shell 32 has a non-pressure resistant structure in which the inside communicates with the outside water, the cylinders 21 and 22 are arranged inside the outer shell 32. ,shell
When the pressure-resistant structure 32 is used, each of the cylinders 21 and 22 constituting a part of the floating structure is mounted outside the outer shell 32.

[0029]

As described in detail above, according to the marine floating structure of the present invention, the following effects can be obtained. (1) Focusing on the fact that the gas cylinder itself that supplies fuel gas or oxygen gas to the fuel cell as a power source has a function as a buoyant body, these cylinders are used as at least a part of the floating body structure Thus, expensive syntactic foam buoyancy bodies can be eliminated or their use can be significantly reduced. (2) The fuel cell is configured as a polymer electrolyte fuel cell, and hydrogen gas is used as the fuel gas to introduce water generated along with the power generation reaction of the fuel cell. When the connected generated water tank is installed at the lower part of the ocean floating body, the generated water has a function as ballast water and serves to lower the center of gravity of the entire ocean floating body, Thereby, the stability as the floating body is increased. (3) When the marine floating body is configured as a diving vehicle and includes a propulsion device that receives power from the fuel cell and operates, and the fuel gas cylinder and the oxygen gas cylinder are arranged above the diving vehicle, Each cylinder as part of the floating structure will serve to raise the buoyancy position of the entire dive vehicle, thereby increasing the stability of the dive vehicle. (4) When the fuel gas cylinder and the oxygen gas cylinder have an elongated shape in the horizontal direction, and these cylinders are arranged so as to extend in the front-rear direction at the upper part of the diving vehicle, This also helps to improve the vertical stability of the diving vehicle. (5) When the marine floating body is configured as a buoy, and the fuel gas cylinder and the oxygen gas cylinder have a vertically elongated shape, and these cylinders are arranged along the peripheral wall of the buoy, the floating body structure As a result, each cylinder has a distribution of buoyancy in a marine buoy along the outer periphery of the buoy, and furthermore, the arrangement configuration of each vertically elongated cylinder provides buoyancy and stability corresponding to an increase in draft. This has the effect of becoming

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an ocean floating structure according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view showing the inside of an ocean floating structure according to a second embodiment of the present invention.

FIG. 4 is a plan view of the inside of the ocean floating structure of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fuel cell 2 Hydrogen gas cylinder 2a Internal pressure regulating valve 3 Oxygen gas cylinder 3a Internal pressure regulating valve 4 Floating body 5 Produced water tank 6 Pump 7 Humidifier 8 Distribution board 9 TV camera 10 Illumination lamp 11 Electric propulsion device 12 Outer shell 21a Internal pressure regulation Valve 22 Oxygen gas cylinder 22a Internal pressure regulating valve 23 Circular connection pipe for hydrogen gas 24 Circular connection pipe for oxygen gas 25 Fuel cell 26 Humidifier 27 Distribution board 28 Data communication device 29 Temperature / humidity observation sensor 30 Generated water tank 31 Pump

Claims (5)

[Claims] 1. An marine floating body comprising: a fuel cell as an electric power source; a fuel gas cylinder for supplying a fuel gas to the fuel cell; and an oxygen gas cylinder for supplying an oxygen gas to the fuel cell. Wherein the fuel gas cylinder and the oxygen gas cylinder form at least a part of the floating structure of the marine floating body. 2. The marine floating structure according to claim 1, wherein the fuel cell is configured as a polymer electrolyte fuel cell, and hydrogen gas is used as the fuel gas, so that the fuel cell generates a power generation reaction. An ocean floating structure, wherein a generated water tank connected to the fuel cell is installed below the ocean floating body to introduce generated water. 3. The marine floating body structure according to claim 1, wherein the marine floating body is configured as a diving vehicle, and further includes a propulsion device that receives power from the fuel cell and operates. An ocean floating structure, wherein the fuel gas cylinder and the oxygen gas cylinder are arranged on the upper part of the diving vehicle in order to improve the marine structure. 4. The marine floating structure according to claim 3, wherein the fuel gas cylinder and the oxygen gas cylinder have an elongated shape in a horizontal direction, and the cylinders extend in a front-rear direction above the diving vehicle. Floating structure, characterized by being arranged as follows. 5. The marine floating body structure according to claim 1, wherein the marine floating body is configured as a buoy, and the fuel gas cylinder and the oxygen gas cylinder have a vertically elongated shape. An ocean floating structure characterized by being arranged along the peripheral wall of a buoy.