DE202014006146U1 - Load-bearing hatch cover - Google Patents

Abstract

Load-bearing hatch cover in particular, but not exclusively for inland vessels, characterized in that a frame spans the loading area and is arranged movably on the riser in the ship's longitudinal axis, further characterized in that it contains empty and filled large containers, e.g. B. tank container, can carry and is equipped with the necessary locks (z. B. Twistlocks) and further that it can have a tub shape that is able to catch liquids leaking from the container and further characterized in that the hatch cover on one side or is provided on both sides with drainable drains that protrude over the width of the ship and allow the liquid to flow into the water and further characterized in that the lower edge of the hatch cover is at the same height as the upper edge of the riser can be both higher and lower.

Description

The invention relates to a load-bearing hatch cover in particular, but not exclusively, for inland vessels, characterized in that a frame spans the cargo area and is arranged laterally movable on the setting board, further characterized in that it empty and filled large containers, eg. As tank container, and is equipped with the necessary detents (eg. Twistlocks) and further that he can have a trough shape, which is able to catch leaking liquids from containers,
and further characterized in that the hatch cover may be provided on one side or both sides with condescreasable drains that protrude beyond the width of the vessel and allow the liquid to flow into the water.

The conversion of inland and seagoing vessels to environmentally friendly energy carriers, such as B. Liquid Natural Gas (LNG) or Liquid Petroleum Gas (LPG) requires a novel storage of the energy carrier, because the previous installed in the ship bunker rooms are not suitable for you storage of these substances.

The additional installation of suitable storage capacities is very costly, corresponding volumes are not available in the hull or it must be permanently re-assigned cargo hold capacities of the ship. This is z. B. lost cargo space.

The logistical provision of the required energy sources is no longer guaranteed with the facilities available so far. The existing tank facilities - bunker stations, supply schedules u. Ä. - Are not equipped or suitable for the supply of gaseous fuels.

Optimal provision of the energy carriers for retrofitted ships can be ensured if the energy carriers can be provided in tank containers, which can be provided eg. B. filled with the energy on board and replaced by new filled containers after emptying. It makes sense to use tank containers according to the ISO standard or according to the swap body standard. They are easy to turn around with existing facilities - empty through full replacement - and allow economically viable and cost-effective logistics.

• – eine zusätzliche Unterbringung von Behältern für Energieträger an Bord zu ermöglichen,
• – diese Unterbringung an Bord ohne Einschränkung des erlösbringenden Ladevolumens zu ermöglichen
• – und dabei die Zugänglichkeit des Laderaums der Schiffe für Be- und Endladung nicht einzuschränken.

The object of this invention is

• - to allow additional accommodation of containers for energy carriers on board,
• - to allow this on-board accommodation without limiting the revenue-generating cargo volume
• - while not limiting the accessibility of the hold of the vessels for loading and unloading.

The object is achieved by applying a load-bearing hatch cover over the hold of the ship.

The invention will now be described. It should be noted that the invention allows a wealth of design options. Since ships are usually individual solutions, an adaptation to the respective circumstances is mandatory. The description is therefore limited to significant designs, other solutions are part of this invention, provided that they meet all or part of the task.

1 shows the load-bearing hatch cover in the direction of ship's longitudinal axis

2 shows a similar arrangement, but characterized in that the containers to be stowed partially protrude into the cargo space from above and so allows passage of the ship under low bridges.

3 Time in plan view, the jamming of the container with the basic direction in ship's longitudinal axis and 4 a stowage of the container transverse to the ship's longitudinal axis, while containers are used by swap body standard example here.

In 1 is the hull ( 1 ) and the loading space ( 2 ), which above the hull by the setting board ( 3 ) is limited.

The upper edge of the riser board is usually already equipped with rails to move the overlying hatch cover can.

If no rails are available, they must be retrofitted.

Above is the load-bearing hatch cover ( 10 ) arranged. It consists of a frame in the dimensions of the large containers to be accommodated. The cross beams ( 11 ) the cargo space. They pick up the load of the large containers arranged above them. For their safe storage, the crossbeams are either with conventional Twistlooks ( 15 ) or locking pins, as they are used on railroad cars for tank safety. Further solutions are conceivable according to the invention.

When using LPG as an energy source, it should be borne in mind that under normal climatic conditions, LPG is liquid in the tank and, in the case of leakages, turns into gaseous form, but this gas is heavier than air. This means that it spreads and holds in underlying spaces.

These rooms can not be entered anymore. To prevent this, it is envisaged to equip the hatch cover with a tub that serves as a container for leaks and prevents the underlying cargo space is charged.

If the large containers used are already equipped with a collecting trough, can be dispensed with the construction of a trough on the hatch cover, but it is the frame to cover area to protect the cargo space from the weather.

If necessary, the tub ( 12 ) on both sides with fold-out spouts ( 13 ), which ensure that the tub contents can leak to the outside of the ship.

It is conceivable that the spouts from a liquid-tight z. B. tarpaulin material can be made.

As an alternative to the described outlets, the tub ( 12 ) equipped with a pump for emptying or connected to a ship-side bilge system.

According to the task, the hatch cover ( 10 ) be movable under load in the longitudinal axis of the ship, so that the underlying cargo space for loading and unloading is accessible. It is therefore equipped on both sides with rollers, which on the rails ( 4 ) of the setting board ( 3 ) roll. There are appropriate locks / locks provide that lock the hatch in the intended position.

To move the hatch is a Verschub device ( 17 ) intended. It engages on both sides of the hatch cover ( 10 ) at. Conceivable is the use of traction cables with deflection. But it is also the use of push chains conceivable. However, the possible solutions according to this invention are not yet exhausted. To achieve synchronism, both shunting devices should be connected via a common wave ( 18 ) from a drive, for. As an electric motor operated. It is also conceivable that the shaft is actuated by a hand crank or by a z. B. Hand drill, which is plugged onto the shaft if necessary.

Both LNG and LPG are classified dangerous goods. Leaks and other deviations from a proper operating condition must therefore be recorded and necessary measures initiated.

The hatch covers are therefore equipped with sensors, irregularities, such. B. gas leakage, capture and signal to a control device. This control device triggers programmed alarm devices and causes all other necessary measures, eg. B. the unfolding of the processes ( 13 ), the operation of pumps and other safety measures.

The control device may be part of the hatch cover, but it may also be connected with its sensors to a ship-side central control device. Due to the large number of circumstances depending on each individual case, a graphic representation was dispensed with.

LIST OF REFERENCE NUMBERS

1

hull

2

hold

3

setting board

4

rail

5

large containers

6

Patch fitting

10

hatch cover

11

crossbeam

12

tub

13

procedure

14

role

15

twistlook

17

Shunting device

18

wave

19

drive

Claims (10)

Load-bearing hatch cover in particular, but not exclusively for inland vessels, characterized in that a frame spans the loading area and is movably arranged on the setting shelf in the longitudinal axis of the ship, further characterized in that it contains empty and filled large containers, eg. As tank container, and is equipped with the necessary detents (eg Twistlocks) and further that he may have a trough shape that is able to absorb leaking liquids from the container and further characterized in that the hatch cover unilaterally or bilaterally provided with drainable processes that protrude beyond the width of the ship and allow leakage of the liquid into the water and further characterized in that the lower edge of the hatch covers are at the same height with the upper edge of the riser both higher and aucxh lower. Load-bearing hatch cover according to claim 1, characterized in that the hatch cover can accommodate in its external dimensions both containers according to container ISO standard as well as to swap body standard or is designed only for certain container sizes and the container either in the direction of the ship's longitudinal axis or across to or in either direction are staubar. Load-bearing hatch cover according to claim 1 and 2, characterized in that are provided for locking the container upright locking pin railroad standards or twist locks. Load-bearing hatch cover according to claim 1, 2 and 3, characterized in that the hatch cover is lockable relative to the setting board or other fixed parts of the ship. Load-bearing hatch cover according to claim 1, 2, 3 and 4, characterized in that the hatch cover is movable by cables mounted on both sides and the cables are mechanically coupled in the drive for synchronization and are powered by electric motor, crank handle or coupling e-motor or be moved with separate concurrent electric motors. Load-bearing hatch cover according to claim 1, 2, 3, 4 and 5, characterized in that are used to move the hatch cover on both sides shear chains, which are mechanically or electrically coupled by self-locking worm gear. Load-bearing hatch cover according to claim 1, 2, 3, 4, 5 and 6, characterized in that the trough-shaped design of the hatch cover to one or both sides of the ship has foldable outlets, which can be carried out by hand or by remote control and the outlets of a rigid Material or made of flexible, liquid-tight material or may be equipped with a pump. Load-bearing hatch cover according to claim 1, 2, 3, 4, 5, 6 and 7, characterized in that for lenzen the tub of the hatch cover, a pump is installed or a nozzle for connecting a pump is provided. Load-bearing hatch cover according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11, characterized in that the tub bottom is designed unilaterally or both sides bevelled. Load-bearing hatch cover according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12, characterized in that it is equipped with sensors for detecting liquid or gas accumulations in the tub and either the hatch cover is equipped with its own control device that can trigger alarms and other activities in the event of accumulations in the pan, or that the hatch cover is connected to a control system outside of the hatch cover for this purpose.

Images