JP5763479B2 - Arrangement method of sail of machine sailing merchant ship and machine sailing merchant ship - Google Patents

Description

  The present invention relates to a main engine and a propulsion device driven by the main engine, and also relates to a method for arranging a sail of a machine sailing merchant ship having a sail as a propulsion assist and a machine sailing merchant ship.

In order to reduce the total amount of carbon dioxide (CO ₂ ) emitted by a ship, it is effective to reduce the amount of carbon dioxide emitted not only by new ships but also by many existing ships. As an energy-saving device that can be installed on an existing ship, there is an energy-saving additive installed around the propeller. However, with regard to this energy-saving additive, performance improvement has progressed so far, and it is considered difficult to dramatically improve the performance in the future. It has been. Therefore, in addition to these energy-saving addenda, the development of new energy-saving devices that can be installed on existing ships has become an important issue.

  In this connection, dozens of cargo ships equipped with sails were built in the 1980s, including domestic ships and outer bulk carriers, and their effects have already been demonstrated. These sailing vessels have a relatively small sail area, so the energy saving effect of this auxiliary sail is limited, but without significantly affecting the maneuvering, visibility, structure, outfitting, etc. It can be easily attached to an existing ship and is a candidate for a newly required energy-saving device.

  However, in the prior art, in the case of a relatively small ship with a relatively small bridge compared to the sail, the line of sight from the bridge is secured by raising the lower end position of the sail and passing the lower part of the sail. However, when a sail is equipped on a large merchant ship with a high bridge, the view from the bridge is blocked by the sail, and thus a device for securing the view necessary for navigation is necessary.

  In connection with this, as a method of placing the sail on the premise of equipment on a large sailing large merchant ship, a method of placing the sail on the left and right ballast tanks has been proposed so that a forward view can be secured, For example, even in a large ship where the height of the residential area structure is high, a forward view can be secured and the wind flow can be used effectively without increasing the length of the mast. There has been proposed a sailing merchant ship in which a left mast and a right mast to which a left sail and a right sail for generating lift are respectively installed are installed in a port left ballast tank and a starboard right ballast tank (see, for example, Patent Document 1).

  However, with this sail placement method for sailing merchant ships, even if the front view of the hull can be secured, the sails that are continuously placed on the starboard and port side in the front-rear direction can be used for the side of the ship on the side that is seen from the bridge. The field of view is greatly obstructed, and when the sail is turned, a part of the sail protrudes from the port or starboard in plan view, and the field of view on the heel side is further obstructed, causing operational problems. . In addition, in this sail arrangement method, there is a problem that if the area of the sail is reduced in order to secure the field of view, the energy saving effect by the sail is reduced.

JP 2011-98666 A

  The present invention has been made in view of the above-described situation, and an object of the present invention is to reduce the area of a sail in a main engine, a propulsion device driven by the main engine, and a ship arranged on a deck. A method for arranging sails of a sailing merchant ship capable of ensuring sufficient visibility from a monitoring place in the bridge while making it as large as possible, and improving energy saving effect and safety by increasing the area of the sail, and The purpose is to provide a sailing merchant ship.

In order to achieve the above object, a sail placement method for a sailing merchant ship according to the present invention includes a main engine, a propulsion device driven by the main engine, a sail arranged on a deck, and a plan view. The sail opened in the width direction is arranged so as to enter one or more sectors centered on the viewpoint of the monitoring place in the bridge, and the center angle of the sector is continuously within 10 degrees. And the sum of the central angles of the sectors is set to be within 20 degrees . According to this method, from the viewpoint of the monitoring place in the bridge, the bow on the bow side can be arranged so as to be hidden behind the sail placed in the same fan shape on the side close to the bridge. The total area of the sail can be increased without increasing the dead world from the place. In particular, by ensuring that the central angle of the sector does not exceed 10 degrees continuously, and that the sum of the central angles of the sectors does not exceed 20 degrees, sufficient visibility from the monitoring location in the bridge is secured. become able to.

In the above-described method for arranging a sail of a machine sailing merchant ship, the fan shape in which the sail is arranged is set to three on both sides of the hull and the center of the hull, and the central angle of each of the fan shapes is within 5 degrees, When the angle between the fan shapes is 5 degrees or more and 15 degrees or less, the total area of the sail can be increased while ensuring a forward view from the monitoring place in the bridge. In particular, since the central angle of the sector does not exceed 5 degrees and the angle between the sectors exceeds 5 degrees, the front view from the monitoring place in the bridge can be sufficiently secured. In the above-described method for arranging a sail of a machine sailing merchant ship, the fan shape on which the sail is arranged is set to two on both sides of the hull, or on both sides of the hull and the center of the hull, If the position in the front-rear direction is different between port and starboard, the center angle of each of the sectors is within 5 degrees, and the angle between the sectors is between 5 degrees and 15 degrees, the sail falls over the deck or When folded and stowed, the sail is in the Keima flying state, so there is no interference with the sail on the opposite side, and the sail is easily placed when stowed.

  In the sail arrangement method of the above-mentioned machine sailing merchant ship, when the fan shape on which the sail is arranged is set to only one side of the hull, compared to the case where it is arranged on both sides and the three fans in the center of the hull. Although the total area of the sail is reduced, there is no interference with the sail on the opposite side when the sail is toppled or folded on the deck, so that the arrangement of the sail at the time of storage becomes easy. In addition, since the area on the deck that is not covered with the sail can be increased when the sail is stored, work and maintenance when the sail is installed are facilitated.

In order to achieve the above object, a sailing merchant ship of the present invention includes a main engine, a propulsion device driven by the main engine, and a sail arranged on a deck, and is opened in the width direction in plan view. The sails in the state are arranged so as to be in one or more sectors centered on the viewpoint of the monitoring place in the bridge, and the sector angle is continuously within 10 degrees, and the sector shape The sum of the central angles of the two is configured to be within 20 degrees . According to this configuration, the sail on the bow side can be arranged so as to be hidden behind the sail near the bridge, from the viewpoint of the monitoring place in the bridge, and the dead world from the monitoring place in the bridge is increased. Without increasing the total area of the sail.

In the aircraft sailing merchant ship, there are three fan shapes on which the sails are arranged, that is, both sides of the hull and the center of the hull, each of which has a central angle within 5 degrees and an angle between the fan shapes of 5 If it is configured so that the angle is not less than 15 degrees and not more than 15 degrees, the total area of the sail can be increased while ensuring a forward view from the monitoring place in the bridge.

In the above-mentioned machine sailing merchant ship, the sector in which the sail is arranged is two on both sides of the hull, or on both sides of the hull and the center of the hull, and the position in the front-rear direction of the sail is port and starboard. When the center angle of each of the sectors is within 5 degrees and the angle between the sectors is between 5 degrees and 15 degrees, the sail is overturned or folded on the deck. There is no interference with the sails on the opposite side when storing in the case, so that the arrangement of the sails during storage becomes easy.

  In the above-mentioned machine sailing merchant ship, if the fan is arranged so that the fan shape is only one side of the hull, it can be compared with the case where the fan is arranged in three fan shapes in the center of the hull and the hull. Although the total area is small, there is no interference with the sail on the opposite side when the sail is toppled or folded on the deck and stored, so that the arrangement of the sail at the time of storage becomes easy. In addition, since the area on the deck that is not covered with the sail can be increased when the sail is stored, work and maintenance during the installation of the sail are facilitated.

  According to the sail arrangement method and the machine sailing merchant ship of the present invention, the sail area can be increased in the main engine, the propulsion device driven by the main engine, and the ship provided with the sail arranged on the deck. While making it as large as possible, it is possible to secure sufficient visibility from the monitoring place in the bridge, and it is possible to improve the energy saving effect and safety by increasing the sail area.

It is a top view which shows arrangement | positioning of the sail of the machine sailing merchant ship of 1st Embodiment which concerns on this invention. It is a side view of FIG. It is a top view which shows arrangement | positioning of the sail of the machine sailing merchant ship of 2nd Embodiment which concerns on this invention. FIG. 4 is a side view of FIG. 3. It is a top view which shows arrangement | positioning of the sail of the machine sailing merchant ship of 3rd Embodiment concerning this invention. FIG. 6 is a side view of FIG. 5. It is a top view which shows arrangement | positioning of the sail of the machine sailing merchant ship of 4th Embodiment based on this invention. FIG. 8 is a side view of FIG. 7.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a sail placement method and a machine sailing merchant ship according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 8, the machine sailing merchant ships 1 </ b> A to 1 </ b> D provided with the sail 10 include a main engine and a propulsion device driven by the main engine, and are disposed on the deck 2 as auxiliary propulsion. A sail 10 is provided. An upper structure 5 having a bridge 3 and a dodger 4 extending laterally from the bridge 3 is provided on the deck 2 at the rear of the machine sailing merchant ships 1A to 1D.

  Since the present invention relates to the arrangement of the sail 10 on the deck 2, the shape and type of the sail 10 do not need to be particularly limited. Here, the sail 10 is formed of a hard sail. In addition, a rotation mechanism and a turning mechanism are provided at the root support portion of the sail 10, and when the sail 10 is stored, the sail body of the sail 10 is rotated around the rotation mechanism and turned over and placed on the deck 2. When the sail is deployed, the sail body is rotated around the rotation mechanism to stand on the deck 2 and the sail 10 is deployed. When sailing while using the sail 10 as an auxiliary propulsion, the wind direction, wind speed, etc. It is preferable that the sail body of the sail 10 is turned by the turning mechanism so that the optimum angle is obtained.

  In addition, the sail 10 is preferably mass-produced with the same shape and the same size in consideration of reduction in manufacturing cost and ease of design, but priority is given to a large total area of the sail 10. In this case, by setting the width of the sail 10 to the width of the sector 20 at the place where the sail 10 is installed, it is possible to make the total area of the sail 10 remarkably large while ensuring sufficient visibility. The lower side of the sail 10 is arranged with a gap above the deck 2, and this gap allows the piping (not shown) on the deck 2 to be swept away, and the seawater poured into the deck 2 can flow smoothly backward. It is preferable to do so.

Next, a description will be given of the sail arrangement method and the machine sailing merchant ship according to the first to fourth embodiments of the present invention. As shown in FIGS. 1 to 8, regarding the arrangement of the sails 10 of the machine sailing merchant vessels 1 </ b> A to 1 </ b> D, the sail 10 opened in the width direction of the ship in plan view has the viewpoint Pc of the monitoring place in the bridge 3. It arrange | positions so that it may enter in the one or several fan shape 20 made into the center. At the same time, the sector 20 has the central angle αi (i = 1, 2, 3) continuously within 10 degrees (degree), and the total Σαi of the central angles αi of the sector 20 is within 20 degrees. Set to. That is, in the plan view, the sail 10 that is open in the width direction of the ship is arranged so as to enter one or a plurality of sectors 20 centering on the viewpoint Pc of the monitoring place in the bridge 3, and this sector 20 The central angle αi is continuously within 10 degrees, and the sum Σαi of the central angles αi of the sector 20 is within 20 degrees . It is preferable to arrange the sail 10 on the bulkhead 5 of the hull because it is not necessary to reinforce the deck 2 in particular.

  According to this arrangement method and the machine sailing merchant vessels 1 </ b> A to 1 </ b> D, the bow 10 on the bow side can be arranged to be hidden by the sail 10 near the bridge 3 when viewed from the viewpoint Pc of the monitoring place in the bridge 3. Therefore, the total area of the sail 10 can be increased without increasing the dead field Σαi from the viewpoint Pc of the monitoring place in the bridge 3.

Next, the sail placement method and the machine sailing merchant ship according to the first embodiment of the present invention will be described. As shown in FIGS. 1 and 2, regarding the arrangement of the sail 10 of the machine sailing merchant ship 1 </ b> A, the fan-shaped 20 on which the sail 10 is arranged is set at three sides of the hull and the center of the hull, and each fan-shaped 20. The central angle αi (i = 1, 2, 3) is set to 5 degrees or less, and the angle βj (j = 1, 2) between the sectors 20 is set to 5 degrees or more and 15 degrees or less. That is, there are three fan-shaped sections 20 on which the sails 10 are arranged, ie, both the hull side and the center of the hull. The center angle αi of each fan-shaped section 20 is within 5 degrees, and the angle βj between the fan-shaped sections 20 is 5 degrees or more and 15 degrees. Configure to be within degrees. With this arrangement, the total area of the sail 10 can be increased while ensuring the field of view from the viewpoint Pc of the monitoring place in the bridge 3.

Next, a method for arranging sails and a machine sailing merchant ship according to a second embodiment of the present invention will be described. As shown in FIGS. 3 and 4, regarding the arrangement of the sail 10 of the machine sailing merchant ship 1 </ b> B, the fan-shaped 20 where the sail 10 is arranged is set to two of the hulls of the hull, and the position of the sail 10 in the front-rear direction is set. Are different between the starboard and the starboard, the central angle αi (i = 1, 2) of each sector 20 is set to 5 degrees or less, and the angle β1 between the sectors 20 is set to 5 degrees or more and 15 degrees or less. That is the two sector 20 in both side of the ship hull sail 10 is placed, as well as arranged at different longitudinal position of the sail 10 at the port and starboard, a central angle αi of each sector 20 within 5 degrees, it constitutes the angle β1 between the fan 20 to be within 15 degrees 5 degrees or more. According to this arrangement, when the sail 10 is stored on the deck 2 while being overturned or folded, there is no interference with the opposite sail 10, so that the arrangement of the sail 10 during storage becomes easy.

Next, a method for arranging sails and a sailing merchant ship according to a third embodiment of the present invention will be described. As shown in FIG. 5 and FIG. 6, regarding the arrangement of the sail 10 of the aircraft sailing merchant ship 1 </ b> C, the fan-shaped 20 on which the sail 10 is arranged is set at three sides of the hull and the center of the hull, and before and after the sail 10. The position of the direction is made different between the port side and the starboard side, and the central angle αi (i = 1, 2, 3) of each sector 20 is within 5 degrees, and the angle βj (j = 1, 2) between the sectors 20 Is 5 degrees or more and 15 degrees or less. That is the sector 20 of the sail 10 is disposed three Starboard and port side and midship hull, as well as arranged at different longitudinal position of the sail 10 at the port and starboard, the center of each sector 20 The angle αi is 5 degrees or less, and the angle βj between the sectors 20 is configured to be 5 degrees or more and 15 degrees or less. According to this arrangement, when the sail 10 is stored on the deck 2 while being overturned or folded, there is no interference with the opposite sail 10, so that the arrangement of the sail 10 during storage becomes easy.

Next, a method for arranging sails and a sailing merchant ship according to a fourth embodiment of the present invention will be described. As shown in FIGS. 7 and 8, regarding the arrangement of the sail 10 of the machine sailing merchant ship 1 </ b> D, the fan-shaped 20 on which the sail 10 is arranged is set to only one side of the hull. That is, the fan-shaped 20 on which the sail 10 is arranged is configured to be only one of the hulls.

  According to this arrangement, as in the case of the machine sailing merchant ship 1A according to the first embodiment and the machine sailing merchant ship 1C according to the third embodiment, it is compared with the case where they are arranged on both sides and the three sectors 20 at the center of the hull. Although the total area of the sail 10 is reduced, when the sail 10 is folded or folded on the deck 2 and stored, there is no interference with the opposite sail 10, so that the arrangement of the sail 10 during storage becomes easy. In addition, since the area on the deck 2 that is not covered with the sail 10 can be increased when the sail is stored, work and maintenance when the sail 10 is installed are facilitated.

  According to the sail arrangement method and the machine sailing merchant ships 1A to 1D having the above-described configuration, the machine sailing including the main engine, the propulsion device driven by the main engine, and the sail 10 arranged on the deck 2 is provided. In the merchant ships 1A to 1D, the sail 10 on the bow side can be arranged so as to be hidden by the sail 10 on the side close to the bridge 3 when viewed from the viewpoint Pc of the monitoring place in the bridge 3, so the monitoring place in the bridge 3 The total area of the sail 10 can be increased without increasing the dead field Σαi from the viewpoint Pc. As a result, the field of view from the bridge 3 can be sufficiently secured while increasing the area of the sail 10, and it is possible to improve the safety, improve the energy saving effect by increasing the area of the sail 10, and improve the safety.

  According to the method of arranging a sail of a machine sailing merchant ship and a machine sailing merchant ship of the present invention, in the machine sailing merchant ship provided with the main engine, the propulsion device driven by the main engine, and the sail arranged on the deck, the area of the sail It is possible to secure sufficient visibility from the viewpoint of the monitoring place in the bridge while increasing the size of the bridge, and to improve the energy saving effect and safety by increasing the sail area. It can be used for ships.

1A, 1B, 1C, 1D aircraft sailing merchant ship 2 deck 3 bridge 4 dodger 5 superstructure 6 bulkhead 10 sail (horizontal sail)
20 Fan-shaped Pc Viewpoint of monitoring place in Funabashi αi Fan-shaped central angle βj Fan-shaped angle Σαi Sum of fan-shaped central angles

Claims (8)

The main engine, a propulsion device driven by the main engine, and a sail arranged on the deck, and the sail opened in the width direction of the ship in plan view are centered on the viewpoint of the monitoring place in the bridge. The fan is arranged so that it falls within one or a plurality of sectors, the center angle of the sectors is continuously within 10 degrees , and the sum of the center angles of the sectors is within 20 degrees. A method of arranging sails of a machine sailing merchant ship. The sector in which the sail is arranged is set to three of the hull side and the center of the hull, and the central angle of each of the sectors is within 5 degrees, and the angle between the sectors is between 5 degrees and 15 degrees The method for arranging sails of a sailing merchant ship according to claim 1. The fan shape on which the sail is arranged is set to two on both sides of the hull, or on both sides of the hull and the center of the hull, and the position of the sail in the front-rear direction is made different between port and starboard. In addition, the center angle of each of the sectors is set to 5 degrees or less, and the angle between the sectors is set to 5 degrees or more and 15 degrees or less.   The method for arranging a sail of a machine-running merchant ship according to claim 1, wherein the fan-shaped fan is arranged on only one side of a hull. The main engine, a propulsion device driven by the main engine, and a sail arranged on the deck, and the sail opened in the width direction of the ship in plan view are centered on the viewpoint of the monitoring place in the bridge. And the central angle of the sector is continuously within 10 degrees, and the sum of the central angles of the sectors is within 20 degrees. Machine sailing merchant ship. The sector in which the sail is arranged is three of the hull side and the center of the hull, the central angle of each of the sectors is within 5 degrees, and the angle between the sectors is between 5 degrees and 15 degrees The machine sailing merchant ship according to claim 5. The fan is arranged with two of the two sides of the hull, or the two sides of the hull and the center of the hull, and the position of the sail in the front-rear direction is different between the port side and the starboard side. The machine sailing merchant ship according to claim 5, wherein a central angle of each of the sectors is within 5 degrees, and an angle between the sectors is between 5 degrees and 15 degrees.   The machine sailing merchant ship according to claim 5, wherein the sector in which the sail is arranged is only one side of a hull.

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