JP5037580B2 - Auxiliary equipment for ship dock launching - Google Patents

Description

  The present invention relates to a stern assist facility for launching a dock of a ship.

In recent years, with respect to ships navigating around the world, regulations for reducing environmental impact have been promoted from an international perspective. For ships to be constructed in the future, CO ₂ emissions (fuel consumption) must be reduced. New hull form development is required. In order to reduce fuel consumption, it is indispensable to adopt a hull form with reduced navigation resistance, and the corresponding hull form is a slim ship type. In the case of a thin ship type, the draft at the time of launch will increase. In particular, in the case of car carriers, the current hull form is also restricted by launching, and in the future, a hull form that satisfies fuel consumption reduction will be further demanded. In that case, severe conditions must be cleared in the launching conditions. It is expected that.

  Conventionally, when launching with a slim ship-type slipway (stern), buoyancy at the stern tends to be insufficient, and it is difficult to launch against the lack of buoyancy at the stern. May be installed on the bow-stern side to perform launching work. This can also be applied to dock launching, for example, one disclosed in Japanese Patent Application Laid-Open No. 2007-1562 is known.

  FIGS. 5 and 6 are a front view and a side view showing an installation state of the embodiment of the “additional buoyancy launching device for a ship” disclosed as FIG. 1 and FIG. 2 in the Japanese Unexamined Patent Publication No. 2007-1562, The disclosure in Japanese Patent Application Laid-Open No. 2007-1562 relates to the invention name “additional buoyancy launching method and apparatus of a ship”, and “maintains an equilibrium state of a launching ship by adding buoyancy inside or outside the ship. “To provide a ship launching method and apparatus using additional buoyancy” (see the summary of the publication), “it is configured to store an object having a predetermined size and buoyancy inside. An iron lattice buoyancy chamber, a buoyancy body that is housed in the buoyancy chamber and generates buoyancy, and the buoyancy chamber is installed on the bottom surface of the ship S and welded so that the additionally generated buoyancy works equally on the ship. Ship S by methods such as By comprising a plurality of pillars that connect and fix the buoyancy chamber (see paragraph number 0020 of the publication), "a partially constructed ship having a small length that does not form a cargo hold for stuffing ballast, and It is possible to launch a large block, '' and `` reducing draft, and as a result, launching with more design products and blocks installed. '' (See paragraph numbers 0017 and 0018 of the specification of the publication). 5 and 6, reference numeral 101 is a buoyancy chamber, 102 is a buoyancy body, 103 is a pillar, and S is a ship.

However, the “additional buoyancy launching method and apparatus for a ship” disclosed in Japanese Patent Application Laid-Open No. 2007-1562 requires removal of the buoyancy body 102 and the like after launching, and also corrects painting of the hull and the like.・ In order to perform finishing work, there was a problem that it was necessary to re-enter (final dock).
In addition, the above-described buoyancy body 102 has a problem in that it cannot be used on ships other than the same series because the size and mounting position are different for each individual ship. Furthermore, since the launching work of a thin ship is generally performed using the high tide level at high tide, there are time restrictions due to the tide level on the launch day, and in some cases it is necessary to change the launch date. There was a problem of becoming.

JP 2007-1562 A

  Therefore, in view of the above-described problems in the prior art, the present invention reduces the number of launching drafts even in a slim ship type, and launches and builds a slim ship type ship that is an environmentally friendly ship type even in the current dock facility. The purpose is to provide an auxiliary facility (Launching Lifter).

In order to solve the above problems, the invention according to the claims 1, is disposed on culvert bottom in the dock of the ship to be built, the ship hull lean to the inside of the bow or stern portion or the thin hull Semi It is possible to place a bow block or stern block at the time of building a tandem (Semi-Tandem) type ship , and to move the bow or stern upper opening cross-section rectangular shape that can be removed from the ship after launching the ship. A stern auxiliary facility for launching a dock having a set of auxiliary water facilities , the auxiliary auxiliary device for launching comprising an upper heel tank provided at both upper portions of the upper opening, and a lower portion of the upper heel tanks. A void space provided in each of the above, a lower heel tank provided in a lower portion of each of the void spaces, a central tank provided between the respective lower heel tanks, and these tanks. Air vent and air lines arranged on click, heel tank transfer water line, heel tank drain line, outboard drain line has a compressed-air cylinder, during launch of the ship to be the construction, the marine vessel by the facilities And an upper heel tank, a lower heel tank of one and / or both of the set of launching auxiliary equipment arranged at the bow and stern of the ship against an unexpected trim heel, Utsurisui between the central tank, performs Note wastewater, characterized in that by water injection to the central tank after launch can be released from the ship.
Further, the invention according to claim 2 of the present application is the dock launching stern auxiliary facility for ship launching according to claim 1, wherein the stern assisting facility for dock launching of the ship has a buoyancy of 1500 to 2000 tons. a, it can reduce the launch time draft 0.5～1.0M, characterized by having a total weight of less crane capacity of the dock.
Further, the invention according to claim 3 of the present application is the dock launching stern assisting facility for a ship according to claim 1, wherein the height of the bottom of the launching assisting facility at the bow or stern of the ship is a substantially 1 m, the lower plate tree height approximately 0.8m above the launch auxiliary equipment bow or stern portion of the ship is placed, low Release wooden blocks of the block or stern of the ship neck It is mounted on the top.

Since this invention is comprised as mentioned above, there exist the following effects.
(1) A final dock for reworking and finishing work such as removal of buoyant bodies and painting after launch is unnecessary.
(2) Moreover, there is no time restriction due to the tide level on the launch day, and the launch date is not changed.
(3) Furthermore, when this apparatus is used when constructing a dry dock, it is sufficient to dig a relatively shallow dock, and the construction cost of the dry dock can be reduced.
(4) In addition, since the stern auxiliary equipment for dock launching is levitated together with the ship, the ballast water that was conventionally used to adjust the ship's ballast tank for adjustment at the time of launching is necessary when installing Only a minimum amount of water is charged into the ballast tank of the ship, and the trim is adjusted according to the position where the auxiliary auxiliary equipment for launching is installed, so that the total amount of ballast water can be minimized.

FIG. 1 is a schematic configuration diagram of a stern auxiliary facility 50 for launching a ship according to the first embodiment FIG. 2 is a layout diagram when performing a launching operation using the dock launching stern auxiliary facility 50 for a ship according to the first embodiment, 3 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a diagram showing a launching procedure when using the dock launching stern auxiliary facility 50 for a ship according to the first embodiment; FIG. 5 is a front view showing an installation state of an embodiment of “additional buoyancy launching device for a ship” disclosed as Japanese Patent Laid-Open No. 2007-1562 as FIG. FIG. 6 is a side view showing an installation state of an example of the “additional buoyancy launching device for a ship” disclosed in Japanese Patent Application Laid-Open No. 2007-1562 as FIG.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A ship's dock launching stern assist facility 50 according to an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of a dock launching stern auxiliary facility 50 for a ship according to the first embodiment, and FIG. 2 shows a stern assisting facility 50 for a dock launching of a ship according to the first embodiment. FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 when performing a launching operation when used. 1, 2, and 3, reference numeral 50 is a dock launching stern auxiliary facility for a ship according to the first embodiment, and 1 is a dock launching stern for a ship according to the first embodiment. Upper heel tank that constitutes auxiliary equipment, 2 is the same void space, 3 is the same lower heel tank, 4 is the same central tank, 5 is the same air venting / feeding line, 6 is the same heel tank water transfer , 7 is the same heel tank drain line, 8 is the same valve, 9 is the same outboard drain line, 10 and 11 are the same valve, 12 is the same compressed air cylinder, 13 and 14 are the same valve, C.I. L. Is a ship center line, and the valves 8, 10, 11 are configured to be remotely operable from the operation station 15. Further, in the figure, S is a ship, 50 is a stern assisting facility for dock launching of the ship according to the first embodiment, 60 is a dredger, 70 is a wood block, and 80 is a low board in the facility. It is a tree.

  When building the ship S, as shown in FIGS. 2 and 3, the ship S is arranged on the block 70 on the dock bottom 60, and further, the bottom of the bow and the stern of the ship S are arranged. Two onboard stern auxiliary facilities 50 for launching a dock according to the first embodiment are arranged on 60, and on the underboard 80 in the facility, which is disposed in the stern assisting facility 50 for launching a dock of the ship. The ship S is arranged with the ship bottom height of the ship S matched.

  As shown in FIGS. 2 and 3, the ship dock launching stern auxiliary facility 50 according to the first embodiment has an upper opening cross-sectional rectangular shape having a height of about 80% with respect to the height of the ship S. As shown in FIG. 1, the dock launching stern auxiliary facility 50 for a ship according to the first embodiment is formed on both upper portions of the rectangular auxiliary section 50 of the launching auxiliary facility 50. The upper heel tanks 1, 1 provided, the void spaces 2, 2 provided at both lower portions of the upper heel tanks 1, 1, the lower portions of the void spaces 2, 2, and for launching The lower heel tanks 3, 3 provided at the bottom of the auxiliary equipment 50, and further the side tanks of the lower heel tanks 3, 3, and the central tank 4 at the bottom of the launching auxiliary equipment 50.

  That is, the launching lifter 50 includes an upper heel tank 1, 1 provided on both upper portions of the launching auxiliary equipment 50, and the upper heel tanks 1, 1, as shown in FIG. Void spaces 2 and 2 provided at the lower part of the vacant space 2, and lower heel tanks 3 and 3 provided at the lower part of the void space 2 and 2 and provided at the bottom of the launching auxiliary equipment 50, The central tank 4 is provided at the bottom of the launch auxiliary equipment 50 between the lower heel tanks 3 and 3.

When a ship is launched using the dock launching stern auxiliary facility 50 according to the first embodiment having the above-described configuration, the following launch procedure is performed.
FIG. 4 is a diagram showing a launching procedure when the dock launching stern auxiliary facility 50 for a ship according to the first embodiment is used. In FIG. 4, FIG. 4 (2) is a diagram showing the outline of the procedure 2, FIG. 4 (3) is a diagram showing the outline of the procedure 3, FIG. 4 (4) is a diagram showing the outline of the procedure 4, and FIG. (5) is a diagram showing an outline of procedure 5.

That is, when launching the ship's dock launching stern auxiliary facility 50 according to the first embodiment, the launching auxiliary facility (Launching Lifter) 50 is first installed on the bottom 60 of the ship. The block of S is mounted on the launching auxiliary equipment 50, and the ship S is constructed. The height of the bottom portion of the launching auxiliary facility 50 is approximately 1 m, and the low board 80 having a height of approximately 0.8 m is installed on the launching auxiliary facility 50, and the block of the ship S is It is mounted on the low board 80 (procedure 1).
Accordingly, the height of the board 70 installed on the bottom 60 is about 1.8 m.

  In addition, in the construction method in which one ship is sequentially pushed by 1.5 ships at the time of construction of Semi-Tandem, the following stern structure (semitan ship) In the case of using a launching method in which the ship is lifted and moved, if the construction of the block near the launching auxiliary equipment 50 is completed before the launch of the semitan ship, the shrub 80 becomes unnecessary. The height of the board 70 can be further reduced, and launching becomes more advantageous.

Next, at the time of launching, water is poured into the dock, and the ship S is lifted together with the launching auxiliary equipment 50 (procedure 2).
In this procedure 2, since the ship's dock launching stern auxiliary facility 50 according to the first embodiment is levitated together with the ship S, conventionally, the ship's ballast tank is used for adjustment at the time of launch. As for the ballast water that has been used, only the minimum amount required for the outfitting is filled in the ship's ballast tank, and the trim is adjusted according to the position where the auxiliary equipment for launching is installed to minimize the total amount of ballast water. It becomes possible to limit.

  For unexpected trim and heels that occur when ascending, the air venting / feeding line 5, the heel tank water transfer line 6, the heel tank in the launch auxiliary equipment 50 can be remotely operated from the operation station 15. The drainage line 7, the valve 8, the outboard drainage line 9, the valves 10 and 11, and the compressed air cylinder 12 are operated to transfer and pour and drain water into the upper heel tank 1, the lower heel tank 3, and the central tank 4. Perform trim and heel adjustment.

That is, the trim adjustment at the time of launching is performed by opening the valve 10 (non-trim side) of the bow portion launching auxiliary facility 50 or the stern portion launching auxiliary facility 50 and pouring water into the central tank 4 for adjustment. The heel adjustment at the time of launching is performed by opening the valve 11 and transferring the water from the upper heel tank 1 on the heel side to the lower heel tank 3 on the opposite side by gravity.
After the ship S is completely surfaced, the ship S is pulled out of the dock by a tug boat while the dock launching stern auxiliary facility 50 for the ship according to the first embodiment is installed on the ship S. The ship S is moved to a place with sufficient water depth (procedure 3). Here, the semitan ship is moored outside the dock and waits.

Next, the valve 10 in the dock launching stern auxiliary facility 50 for the ship according to the first embodiment is opened, water is poured into the central tank 4 to fill the tank, and the dock launching ship for the ship according to the first embodiment is filled. The successful auxiliary equipment 50 is sunk, the launching auxiliary equipment 50 is detached from the ship S, the ship S is moved to the outfitting quay, and the ship S is docked at the outfitting quay (procedure 4).
Next, in the state where the valve 10 in the dock launching stern auxiliary facility 50 of the ship according to the first embodiment is opened, the valve 14 is closed, and then the valve 13 is further opened. The water in 4 is drained out of the dock launching stern auxiliary facility 50 of the ship according to the first embodiment by compressed air, and the stern auxiliary facility 50 of the ship launching according to the first embodiment is levitated. (Procedure 5).

  The ship's dock launching stern assist facility 50 according to the first embodiment is re-levitated, adjusted as necessary, and then moved into the dock. The ship's dock according to the first embodiment is moved by a crane. The launching stern auxiliary facility 50 is collected and the launching auxiliary facility is stored in the factory. In addition, the total weight of the dock launching stern auxiliary facility 50 for the ship according to the first embodiment is equal to or less than the crane capacity of the building dock. The buoyancy of the dock launching stern auxiliary facility 50 for the ship according to the first embodiment is about 1500 to 2000 tons, and the draft at the time of launching the ship is reduced by about 0.5 to 1.0 m. It becomes possible.

  When the launching auxiliary equipment is used when building the same or different ship of the next hull form, the dock is drained, and the dock launching stern auxiliary equipment 50 of the ship according to the first embodiment is placed at a predetermined position. After installing the semi-tan. Therefore, it is possible to use the dock launching stern auxiliary facility 50 for ship launching according to the first embodiment even when building ships of different ship types.

  INDUSTRIAL APPLICABILITY The present invention can be used for ship dock launching, and can be effectively used for launching in which buoyancy deficiency at the bow and tail occurs particularly in the case of a slim ship-type dock launch.

DESCRIPTION OF SYMBOLS 1 Upper heel tank 2 Void space 3 Lower heel tank 4 Center tank 5 Air venting / air supply line 6 Heel tank water transfer line 7 Heel tank drain line 8 Valve 9 Outboard drain line 10 Valve 11 Valve 12 Compressed air cylinder 13 Valve 14 Valve 15 Operation station 50 Dock launching stern auxiliary facility 60 Dock bottom 70 Wood block 80 Low wood 101 Buoyancy chamber 102 Buoyant body 103 Pillar S Ship

Claims (3)

Located on the bottom of the ship's dock to be built, the bow block or stern part of the thin ship type inside or the block of the bow part when building a semi-Tandem type ship of the same type Stern support for launching a dock of a ship having a set of auxiliary equipment for launching a bow or a stern with a rectangular upper opening cross section that can be placed on the stern block and can be removed from the ship after launching the ship The launch auxiliary equipment is provided in upper heel tanks provided at both upper portions of the upper opening, void spaces provided in the lower portions of the upper heel tanks, and lower portions of the respective void spaces. Lower heel tanks, a central tank provided between the respective lower heel tanks, an air venting / feeding line disposed in these tanks, and a heel tank transfer Line, heel tank drain line, outboard drain line has a compressed-air cylinder, during launch of the ship to be the building, along with levitate the ship by the equipment, against accidental trim heel, the marine vessel The upper heel tank, the lower heel tank, and the central tank of one and / or both of the one set of launching auxiliary equipments arranged at the bow and stern of the water, and water injection and drainage.
Ships dock launch hire successfully auxiliary equipment, characterized in that by water injection to the central tank after launch can be released from the ship. Dock launch charter successfully auxiliary equipment of the vessel has a 1500 to 2000 tons of buoyancy, it can reduce the launch time draft 0.5～1.0M, following total crane capacity of the dock The stern auxiliary facility for launching a dock of a ship according to claim 1, characterized in that it has a weight. The height of the bottom part of the auxiliary equipment for launching at the bow or stern part of the ship is about 1 m, and the height is about 0.8 m above the auxiliary equipment for launching at the bow part or the stern part of the ship. established a tree, ship docks launched hire successfully auxiliary equipment according to the block of the block or stern of the ship neck to claim 1, characterized in that mounted onto the low board wood.

Images