JP2015168276A - Auxiliary facility of cargo hold heater for marine vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an auxiliary facility of a cargo hold heater for a marine vessel which enables even a single-layer deck ship equipped with a hatch hot blower to solve the problem of short circuit generated in a cargo hold by a simple operation, and to prevent dew condensation such as on freight steel materials.SOLUTION: A facility comprises a sheet 6 that is stored under a take-up condition in a ceiling storage box 5 provided in the attic of the front end or the rear end of a cargo hold 2 of a marine vessel when unused with no need of temperature control in the cargo hold and is able to be suspended down under a take-up condition from the ceiling storage box to a suitable height position in the cargo hold with an existing first cargo gear when used and side wall guide rails 7a - 7c provided as a pair or a plurality of pairs in a height direction of a side wall of the cargo hold. The sheet is suspended down to a suitable height position to extend in a horizontal direction with an existing second cargo gear while both ends is being inserted through the side wall guide rails, thereby dividing the cargo hold at a predetermined position.

Description

  The present invention relates to auxiliary equipment for a cargo hold heating device for a ship.

  Many steel products (hereinafter referred to as “steel materials”) such as hot coils, steel molds, pipes and strips are exported from Japan, and most of them are transported by ship. As for steel materials, some ships have taken measures to install dehumidifiers etc. by treating rust generated during transportation as cargo damage. In addition, in the case of near-sea vessels on the Southeast Asian route, unloading is performed in a high-temperature and humid environment, so that the steel material touches the outside air that has entered from the hatch cover opened for unloading due to the dew point. Condensation may occur, and as a countermeasure, many ships have a device for preventing condensation by circulating hot air in the hold to raise the temperature of the steel material above the dew point.

  6 and 7 are diagrams schematically showing a conventional cargo hold heating apparatus for a ship in which warm air is circulated in the hold. FIG. 6 shows an example of a two-layer deck ship, and FIG. FIG. 6 is a diagram schematically showing an example of a deck ship. In FIGS. 6 and 7, reference numeral 100 denotes a cargo hold, 101 denotes a ship side shell, 102 denotes a hatch cover, 103, 103... Steel, 104 is a heater, 105 is a fan, 106, 106... Are second hatch bars, 107 is a supply port, 108 is an exhaust port, and hot air circulating in the cargo hold 100 is indicated by a thick arrow. Is shown. As shown in FIGS. 6 and 7, the warm air is circulated in the cargo hold 100 by driving the heater 104 and the fan 105.

  However, a two-layer deck ship with a second deck as shown in FIG. 6 can circulate hot air effectively, but a single-layer deck ship as shown in FIG. 7 requires temperature control over a wide area, There is a problem that there is a high risk of occurrence of a short circuit in which hot air passes directly from the hot air supply port 107 to the discharge port 108. For this reason, in the operation of the boiler that obtains the steam of the heat source, there is a problem that the amount of fuel that is consumed increases and the cost increases against energy saving.

In order to solve such a problem in the single-layer deck ship shown in FIG. 7, the affiliated company of the applicant of the present application before changing the company name has already proposed a ventilation device for preventing dew condensation on a steel material carrier (Aki 61). No. 154197)
The thing disclosed in the Japanese Utility Model Publication No. 61-154197 relates to the devised name “ventilation device for preventing dew condensation on steel carrier ship” and “provides a ventilation device for preventing dew condensation on steel material carrier ship with high anti-condensation property”. (Refer to page 3 line 7 to line 8 of the specification of Japanese Utility Model Laid-Open No. 61-154197) "In a steel material carrier ship with a curtain in the warehouse that partitions the interior of the ship horizontally, it is provided at the upper part of the ship. Ventilation holes are provided in the hatch hatching on the bow side above the inner curtain, and ventilation holes are provided on the bow side in the lower part of the hold, with the curtain in between, and the upper and lower ventilation openings on the bow side are connected by ducts with mobile ventilation. On the other hand, a duct having a mobile ventilator provided with a ventilation opening on the stern side in the lower part of the hold and a ventilation opening provided on the stern side hatch combing above the curtain By connecting the upper and lower vents on the stern side and connecting the upper and lower parts in the hold partitioned by the curtain with the ducts on the bow side and the stern side, respectively, the ventilation can be circulated. '' (Refer to the description of the claim of utility model registration in the gazette specification)) “The dew on the lower surface of the hatch cover where dew easily adheres can be completely blown out, and it is also efficiently ventilated to the steel material in the lower part of the cargo hold. It has an effect such as “a moderate ventilation is provided to improve the dew condensation prevention property and maintain the quality of the steel material” (see the same specification, page 7, line 2 to page 8, line 8).

    FIG. 8 is an explanatory diagram of an embodiment of the disclosed device attached as FIG. 1 to Japanese Utility Model Publication No. 61-154197. In FIG. 8, reference numeral 201 is a hatch cover, 202 is a hatch combing, 203 is The curtain in the curtain, 204 is the hold, 204A is the upper hold, 204B is the lower hold, 205A is the bow duct, 205B is the stern duct, 206A is the bow lower vent, and 206B is the stern lower draft. Mouth, 207A is the bow upper upper vent, 207B is the stern upper vent, 208A is the bow maneuvering machine, and 208B is the stern maneuvering machine. Therefore, the applicant of the present application has changed it to three digits of the two hundreds.

  However, what is disclosed in Japanese Utility Model Laid-Open No. 61-154197 as shown in FIG. 7 is merely to divide the ship 204 up and down by the curtain 203 and circulate the air between the upper and lower sides. The temperature control area according to the quantity cannot be changed, and in the case of a small amount of load, the efficiency is poor. In addition to this, what is disclosed in the Japanese Utility Model Laid-Open No. 61-154197 is the one in which the ship 204 is simply divided up and down by the curtain 203, so that the outside air can be prevented from entering through the gap of the curtain 203 and the like. It is difficult to prevent, and when operating in humid areas such as Southeast Asia, if hot and humid outside air enters the inside during the day, and the temperature drops significantly from midnight to morning, There was a problem that condensation occurred on the surface of the steel material at the dew point, causing cargo damage due to rusting.

Japanese Utility Model Publication No. 61-154197

  Therefore, the present invention solves the problem of the short circuit generated in the cargo hold, and reduces the temperature control compartment capacity in the cargo hold, even for a single-layer deck ship, by simple operation. The warm air system of the ship can be made into a more efficient system, which can bring about economic effects such as reduction of fuel consumption, and further support the cargo hold heating system of the ship which can prevent the dew condensation of cargo steel etc. The purpose is to provide equipment.

For this reason, the invention according to claim 1 of the present application is an auxiliary facility for a cargo hold heating device for a ship, and when it is not in use, which does not require temperature control in the cargo hold of the ship, on the ceiling behind the front or rear end of the cargo hold. Stored in a retracted state in a storage box with a ceiling provided, and can be suspended from the storage box with a ceiling to a predetermined appropriate height position in the cargo hold by the existing first cargo handling device when used. The sheet, which is made of a sheet and is suspended at a predetermined appropriate height position, is developed in a horizontal direction by an existing second cargo handling device, and configured to be able to classify a cargo hold at the height position. It is characterized by that.
The invention according to claim 2 of the present application is the auxiliary equipment of the cargo hold heating apparatus for a ship according to claim 1, wherein the predetermined appropriate height position in the cargo hold is the height of the side wall of the cargo hold. It is determined by one or a plurality of paired guide rails with a wall provided in a direction, and both ends of the seat are inserted into the guide rail with a wall and developed.
The invention according to claim 3 of the present application is the auxiliary equipment of the cargo hold heating device for a ship according to claim 1, wherein the seat has spring spring plates that are rotated and returned in a predetermined rotation direction arranged at predetermined intervals. It is characterized by that.
Furthermore, the invention according to claim 4 of the present application is the auxiliary equipment of the cargo hold heating device for a ship according to claim 1, wherein the sheet is wound up by being rotated by a motor drive around the central axis at one end. It is a structure.
The invention according to claim 5 of the present application is the auxiliary equipment for the cargo hold heating device for a ship according to claim 1, wherein the sheet is made of a heat insulating material.

Since this invention is comprised as mentioned above, there exists an effect described below.
(1) The level below the unfolded seat becomes the temperature control target section, and the target volume is reduced compared to the case where the entire conventional cargo hold is set as the temperature control target. In addition to solving the above-mentioned short circuit problem occurring in the interior, the warm air device for the cargo hold can be made into a more efficient system, reducing fuel consumption and obtaining an economic effect.
(2) Moreover, since the amount of heat radiation can be suppressed by using a heat insulating material for the seat, the required amount of heat can be greatly reduced, and there is a great fuel consumption reduction effect.
(3) Furthermore, because the seat has a structure that allows the guide rail to be inserted, it is possible to reduce the intrusion of outside air, to prevent the intrusion of hot air in the daytime, and to reduce the outside air temperature at night. It is possible to prevent dew condensation on the load steel material.

FIG. 1 is a schematic configuration diagram of auxiliary equipment 1 for a cargo hold heating apparatus for a ship according to Embodiment 1 of the present invention. FIG. 2 is a schematic diagram in which the seat 6 of the auxiliary equipment 1 of the cargo hold heating apparatus for a ship according to the first embodiment is suspended by a first crane and lowered to an appropriate height position. FIG. 3 is a diagram schematically illustrating the horizontal expansion of the seat 6 of the auxiliary equipment 1 of the cargo hold heating apparatus for a ship according to the first embodiment. FIG. 4 is a view schematically showing the sheet 6 in which spring springs that rotate and return in a predetermined rotation direction are arranged at predetermined intervals. FIG. 5 is a diagram illustrating an outline of a circulating state of warm air in a temperature control section in the cargo hold by the auxiliary equipment 1 of the cargo hold heating apparatus for a ship according to the first embodiment. FIG. 6 is a diagram showing an outline of a cargo hold heating device for a ship that circulates warm air in the hold of a conventional two-layer deck ship. FIG. 7 is a diagram showing an outline of a cargo hold heating device for a ship that circulates warm air in the hold of a conventional one-layer deck ship. FIG. 8 is an explanatory diagram of an embodiment of a ventilation device for preventing dew condensation of a steel carrier according to the disclosed idea attached as FIG. 1 to Japanese Utility Model Publication No. 61-154197.

  One example for carrying out auxiliary equipment of a cargo hold heating device for a ship concerning the present invention is described in detail based on a drawing.

  FIG. 1 is a schematic configuration diagram of an auxiliary equipment 1 for a cargo hold heating apparatus for a ship according to a first embodiment of the present invention. The auxiliary equipment 1 for a cargo hold heating apparatus for a ship according to the first embodiment is basically Is a sheet that is wound and stored in a roll form when not in use, a hanging rigging that pulls the sheet out of a storage box with a ceiling when in use, and a rigging that unfolds the sheet pulled out of the storage box It consists of two types of rigging.

  In FIG. 1, reference numeral 1 is an auxiliary equipment for a cargo hold heating apparatus for a ship according to the first embodiment, 2 is a cargo hold, 3 is a ship side outer plate, 4 is a hatch cover, 5 is a storage box with a ceiling, 6 is a seat, 7a, 7b, and 7c are wall guide rails, 8 to 10 are wall shackles, pulleys, and deployment wires that are rigging for deployment of the seat 6, and 8 is a wall shackle, 9 is a pulley, 10 is a deployment wire, 11a and 11b are provided at both ends of the sheet 6 on the drawer side, the eye plate with which the deployment wire 10 is engaged, and 12 is a suspension wire.

  The seat 6 of the auxiliary equipment 1 of the cargo hold heating device for a ship according to the first embodiment is stored in the storage box with ceiling 5 provided at the back of the ceiling at the front end or the rear end of the cargo hold 2 at the time of storage. At the time of use, it is suspended by the suspension wire 12 using an existing main cargo handling device (hereinafter referred to as “first crane”) such as a deck crane or derrick, and is wound up vertically to the use position. After the lowered seat 6 is lowered, it is inserted into the guide rail 7 with the wall and the seat 6 is developed in the horizontal direction.

  FIG. 2 is a schematic view of suspending the seat 6 of the auxiliary equipment 1 of the cargo hold heating apparatus for a ship according to the first embodiment with a first crane or the like and lowering it to an appropriate height position. 6 is the above-described wound sheet, 12 is a hanging wire, 13 is the first crane, and 14 is a hook of the first crane 13.

  As is apparent from FIG. 2, the wound sheet 6 is stored in the storage box 5 with a ceiling as described above, and cargo such as steel is loaded in the cargo hold 2, and the cargo When the temperature needs to be controlled efficiently, the hook 14 of the first crane 13 is hung on the suspension wire 12 and taken out from the storage box 5 and lowered to an appropriate position. .

  Here, as is apparent from FIG. 1, the appropriate height position means that the side wall of the cargo hold 2, for example, the inner side wall and the central side wall of the ship side outer plate has one or a plurality of the height positions. Are provided with wall guide rails 7a, 7b, 7c,..., And these wall guide rails 7a, 7b, 7c,... It has a structure. Therefore, after the seat 6 is lowered to an appropriate height position, for example, to the height position of the wall-mounted guide rail 7a, then, as described above, both ends of the seat 6 are provided on the side portions. The guide rail 7a is inserted and supported, and in this state, the deployment wire 10 is pulled by the second crane or the like (not shown) to deploy the seat 6. The unfolded seat 6 is fixed by eye plates 11 a, 11 b, 11 c, 11 d provided at the front and rear ends thereof, and the ship side is restrained and fixed by the wall-mounted guide rail 7.

Next, deployment of the seat 6 of the auxiliary equipment 1 of the cargo hold heating device for a ship according to the first embodiment in the horizontal direction at an appropriate height position will be described.
FIG. 3 is a diagram showing an outline in which the sheet 6 of the auxiliary equipment 1 of the cargo hold heating apparatus for a ship according to the first embodiment is expanded in a horizontal direction at an appropriate height position. In FIG. Is a sheet deployed horizontally from the wound state, 7 is a guide rail with a wall, 8 is a shackle with a wall, 9 is a pulley, 10 is a deployment wire, 11a, 11b, 11c, and 11d are eye A plate, 15 is a hard bar formed at the drawing end of the sheet, 16 is a second crane, 17 is the hook, and 18c and 18d are wall hooks.

As can be seen from FIG. 3, in the auxiliary equipment 1 of the cargo hold heating apparatus for a ship according to the first embodiment, in order to deploy the sheet 6, the eye plates 11 a provided at both ends on the drawer side of the sheet 6, The deployment wire 10 is engaged with 11b and the other existing cargo handling device (hereinafter referred to as “second crane 16”) such as the deck crane or derrick provided outside the cargo hold 2 is used. The both widths of the seat 6 are formed on the guide rail 7 with a U-shaped cross section by pulling up the developing wire 10 from the hatch opening of the cargo hold 2 and pulling the seat 6 in the horizontal direction. The end is supported and deployed.
After unfolding, the eye plates 11a, 11b, 11c, and 11d formed at the ends of the seat 6 are firmly fixed by the wall-attached hooks 18a, 18b, 18c, and 18d.

  Further, when the seat 6 of the auxiliary equipment 1 of the cargo hold heating device for a ship according to the first embodiment is not used, the seat 6 is configured to be wound up by a spring spring or the like mounted therein. If not, the storing operation in the ceiling-mounted storage box 5 is the reverse of the above-described unfolding operation, and the sheet 6 is wound up using a spring spring incorporated in the sheet 6 as a driving source.

  FIG. 4 is a view schematically showing the sheet 6 in which spring springs rotating and returning in a predetermined rotation direction are arranged at predetermined intervals. In FIG. 4, 6 is the sheet, and 7 is the wall guide. Rails 11a, 11b, 11c, and 11d are the eye plates, 18a, 18b, 18c, and 18d are the hooks with walls, and 19a, 19b, 19c, and 19d are spring spring plates.

  As is apparent from FIG. 4, the seat 6 of the auxiliary equipment 1 of the cargo hold heating apparatus for a ship according to the first embodiment is internally provided with the spring spring plates 19a, 19b having a predetermined width at a predetermined interval with respect to the drawing direction. 19c, 19d are provided, and the spring plates 19a, 19b, 19c, 19d have the eye plates 11a, 11b, 11c, 11d detached from the hooks 18a, 18b, 18c, 18d with the walls, and the seat 6 However, when the suspension wire 12 engaged with the first crane 13 is pulled upward, the seat 6 that has come out of the insertion of the wall-mounted guide rail 7 becomes the spring spring plates 19a, 19b, 19c, By the rotation return of 19d, the winding operation naturally occurs, and the sheet 6 is in the winding state. The wound sheet 6 after the completion of winding is stored in the ceiling-mounted storage box 5 by the first crane 13 as described above.

The winding direction of the sheet 6 of the auxiliary equipment 1 of the cargo hold heating device for a ship according to the first embodiment is the winding spring plate 19a wound in the clockwise direction in FIGS. , 19b, 19c, 19d are used, but this may be a spring spring plate 19a, 19b, 19c, 19d wound in a counterclockwise direction, and is not a spring spring plate structure having a rotation return function, It may have a winding structure in which it is wound around a central axis at one end by a motor drive or the like (not shown).
Furthermore, regarding the sheet 6 of the auxiliary equipment 1 of the cargo hold heating device for a ship according to the first embodiment, if the sheet material is a heat insulating material, the temperature control effect is further enhanced.

  FIG. 5 is a diagram showing an outline of a circulating state of warm air in a temperature control section in a cargo hold by the auxiliary equipment 1 of the cargo hold heating apparatus for a ship according to the first embodiment. In FIG. Auxiliary equipment 2 for a cargo hold heating apparatus for a ship according to the first embodiment is a cargo hold, which is the same as the cargo hold 100 described in FIGS. 6 and 7. Reference numeral 4 denotes a hatch cover, which has been described as the hatch cover 102 in FIGS. The other members 103 to 108 are the same members described with reference to FIGS. 6 and 7, and the hot air circulating in the cargo hold 2 is indicated by thick arrows as shown in FIGS. 6 and 7.

  The auxiliary equipment 1 of the cargo hold heating device for a ship according to the first embodiment stores the wound sheet 6 in the storage box 5 with the ceiling when the temperature control in the cargo hold 2 is not necessary. When one or more guide rails with a wall 7a, 7b, 7c,... Are provided in the height direction on the inner wall and the central side wall of the ship side, and the temperature of the zone is controlled according to the amount of cargo to be loaded. The walled guide rail (for example, the walled guide rail 7a) at a height position corresponding to the amount of cargo to be loaded using the first crane 13 and the suspension wire 12 for the wound sheet 6 is used. ) And then, at that position, the developing wire 10 is engaged with the eye plates 11a and 11b provided at the drawing ends of the sheet 6, and both the widths of the sheet 6 are After inserted through the wall with the guide rails 7a and to expand the sheet 6 by pulling horizontally, so that delimit the cargo hold 2 at a predetermined height position.

When the seat 6 is deployed, an appropriate height position (for example, the wall on the opposite side of the traction in the horizontal direction is not shown in the figure so that the winding core of the seat 6 does not flow in the traction direction. The wall guide rails 7a, 7b, etc. may be provided with a wall hook (not shown) to support the seat 6.
After the seat 6 is unfolded, it is fixed by being engaged with the wall-mounted hooks 18a, 18b, 18c, 18d in the vicinity of the eye plates 11a, 11b, 11c, 11d.
Thus, the seat 6 is unfolded at an appropriate height position that requires temperature control, and as shown in FIG. 5, the heater 104 and the fan 105 are driven to move inside the cargo hold 2. In particular, the hot air can be circulated in a section requiring temperature control.

  As a result, the auxiliary equipment 1 of the cargo hold heating apparatus for a ship according to the first embodiment can control the temperature in a narrow region even in a single-layer deck ship, and the hot air supply port 107 can be changed to the discharge port 108. Since the short circuit through which the hot air passes directly does not occur, and the hot air can be sent only to the area where the temperature control according to the load of the cargo is necessary, the ship according to the first embodiment In the auxiliary equipment 1 for the cargo hold heating device, the hot air device for the cargo hold can be configured as an extremely efficient system, thereby reducing the fuel consumption of the ship and economical operation. Further, since the amount of heat radiation can be suppressed by using a heat insulating material for the seat 6, it is possible to greatly reduce the amount of heat required, and there is a great fuel consumption reduction effect. Furthermore, the seat 6 is attached to the wall. Because it is structured to be inserted into the guide rail 7, it can reduce the intrusion of outside air, prevent the intrusion of high temperature and high humidity in the daytime, and prevent the dew condensation of the loaded steel materials etc. even when the outside air temperature at night is reduced. It will be possible.

The present invention is used for auxiliary equipment of a cargo hold heating device for a ship.

DESCRIPTION OF SYMBOLS 1 Auxiliary equipment of ship cargo hold heating device 2 Cargo hold 3 Ship side skin 4 Hatch cover 5 Storage box with ceiling 6 Seat 7a, 7b, 7c Guide rail with wall 8 Shackle with wall 9 Pulley 10 Deployment wire 11a, 11b, 11c 11d Eye plate 12 Hanging wire 13 First crane 14 Hook 15 Hard rod 16 Second crane 17 Hook 18a, 18b, 18c, 18d Wall hook 19a, 19b, 19c, 19d Spring spring plate 100 Cargo hold 101 Outside the ship Plate 102 Hatch cover 103, 103 ... Load steel material 104 Heater 105 Fan 106, 106 ... Second hatch bar 107 Supply port 108 Exhaust port 201 Hatch cover 202 Hatch combing 203 Curtain curtain 204 Ship hold 204A Part hold 204B lower hold 205A fore duct 205B aft duct 206A fore lower vent hole 206B aft bottom air inlet 207A fore upper ventilation hole 207B aft upper ventilation hole 208A fore Mobile ventilators 208B aft Mobile ventilators

Claims (5)

  When the temperature inside the cargo hold of the ship is not required to be controlled, the cargo hold is stored in a retracted state in a storage box with a ceiling provided at the front or rear end of the cargo hold. A sheet that can be hung from a storage box with a ceiling to a predetermined appropriate height position in a cargo hold by a cargo handling device in a wound state, and the sheet suspended at a predetermined appropriate height position is An auxiliary equipment for a cargo hold heating device for a ship, wherein the cargo hold is developed in a horizontal direction by the second cargo handling device so that the cargo hold can be divided at the height position.   The predetermined appropriate height position in the cargo hold is determined by one or a plurality of paired guide rails with a wall provided in the height direction of the side wall of the cargo hold, and both ends of the seat are in the guide rail with the wall. The auxiliary equipment of the cargo hold heating device for a ship according to claim 1, wherein the auxiliary equipment is deployed by being inserted.   The auxiliary equipment for a cargo hold heating device for a ship according to claim 1, wherein the seat includes spring spring plates that are rotated and returned in a predetermined rotation direction at predetermined intervals.   The auxiliary equipment for a cargo hold heating apparatus for a ship according to claim 1, wherein the sheet has a winding structure that is wound around a central axis at one end by a motor drive. The auxiliary equipment for a cargo hold heating device for a ship according to claim 1, wherein the sheet is made of a heat insulating material.

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