FI128498B - Arrangement for operating a hatch cover of a cargo ship - Google Patents

Abstract

Arrangement for operating the cargo ship's hatch (4, 4 ') between the open and closed positions. The invention is implemented in such a way that the arrangement comprises an apparatus (7, 8) integrated in or in the immediate vicinity of the hatch or horn (2) for collecting and storing energy for the operation of the hatch (4, 4 ').

Description

The present invention relates to an arrangement for operating a cargo ship's hatch between an open and a closed position. In a cargo ship, cargo is transported in the hold under cargo hatches. The deck has movable cargo hatches that close the hold below. This invention relates to cargo hatches.

The hatch is operated by hydraulic or electric actuators. These are traditionally powered by the ship's electrical generators or hydraulic systems. The power supply for the actuators required to operate the cargo hatches requires long cabling and piping from a centralized energy source, such as an electric generator in the ship's engine room and a hydraulic engine in its own space. There are several disadvantages associated with these known energy supply solutions. Hundreds of meters of energy supply lines cause power losses and, for example, oil leaks from hydraulic pipes on the ship's deck are possible. The manufacture and installation of large-scale cabling and piping is expensive and time-consuming during the ship's construction phase. A separate hydraulic system for hatch operation also takes up space on board and is in itself an expensive investment. ES The object of the present invention is to provide a novel arrangement for generating and storing energy for operating cargo hatches. The arrangement according to the invention is characterized in that the arrangement comprises equipment integrated in the cargo hatch or horn or mounted in the non-selective vicinity thereof for collecting + and storing energy for operating the hatch without external power supply from the ship's systems.

LO 00 2 35 A preferred embodiment of the method according to the invention is characterized in that, in addition to collecting and storing energy, control systems and cargo bones related to the use of energy

when the mechanisms and actuators required for operation are integrated in or installed in the immediate vicinity of the hatch or horn.

Another preferred embodiment of the arrangement according to the invention is characterized in that the source of energy is the movement of the ship at sea, the temperature difference between the various components, sunlight or wind.

Another preferred embodiment of the arrangement according to the invention is characterized in that the energy is stored in electrochemical batteries or pressure vessels.

Other preferred embodiments of the arrangement according to the invention are defined in dependent claims 5-7.

The advantages of the invention are that it is not necessary to provide any external power supply from the ship's systems for the operation of the hatches. Instead, the hatches are operated entirely with free and environmentally friendly energy. The risk of environmental contamination is eliminated when hydraulic piping is not required on deck. The installation of cargo hatches at the shipyard becomes easier and faster when all the equipment necessary for the operation of the cargo hatch, including the energy output, is integrated into the cargo hatch. In addition, space is saved on board, as a centralized hydraulic system for operating hatch hatches is not required on board.

In the following, the invention will be explained in detail by means of preferred exemplary embodiments with reference to the accompanying drawings, in which

T Figure 1 shows cargo hatches mounted on the deck of a ship on top of a horn in their closed position.

3> 35 Figure 2 shows the same as Figure 1, but the hatches are now driven to the sides of the cargo space opening.

Figure 1 thus shows the deck 1 of a cargo ship, on which the edge of the cargo space is located, i.e. the horn 2. The cargo hatches 4, 4 'are in the closed position on the horn 2, preventing e.g. access to the cargo space 3 below the water. Typically there are 7 or 9 such pairs of cargo hatches 4, 4 'on board.

In the situation of Figure 2, the cargo hatches 4, 4 'are driven to the sides of the opening of the cargo space 3, whereby loading and unloading of cargo is possible.

Only the parts needed to move the cargo hatch 4 are described below, but the corresponding parts are also arranged in the cargo hatch 4 ”. An integrated energy collection device 7 is integrated in the cargo hatch 4, which may be a generator or pump, a solar cell, a wind generator, an element utilizing the temperature difference or other similar device which generates electrical energy or pressure from the movements of the ship's hull at sea.

Furthermore, an energy store 8 is mounted on the cargo hatch 4, which may be an electrochemical battery or, for example, a pressure vessel.

To control and regulate energy production and storage, the cargo hatch 4 has a control unit 9. For the operation of the cargo hatch 4, it is provided with a drive unit 10 which controls actuators such as motors 6 using drive wheels 5. Typically, cargo hatches 4, 4 'are operated during port calls. cargo is loaded or unloaded.

Operating times are short o and overall operation is relatively infrequent.

Most of the time, the ship sails at sea, with no hatch operation. 6 In this case, even a low-power energy collection system can? able to collect a sufficient amount of energy for the next operation of the counters. It will be clear to a person skilled in the art that the invention is not limited to the above-mentioned embodiments, but may vary within the scope of the appended claims.

There are also means of collecting and storing energy other than N 35 mentioned above, and the operation of the cargo hatches 4, 4 'can also be carried out by methods and actuators other than those mentioned above.

An embodiment has been described above, in which the arrangement according to the invention is located entirely in the cargo hatch. It is also possible to implement the arrangement in such a way that the equipment is located in whole or in part in the horn 2 or in the immediate vicinity of the cargo hatch 4, 4 'and the horn 2.

If necessary, the features presented in the description together with other features can also be used separately from each other, if necessary.

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Claims (7)

PATENT REQUIREMENTS An arrangement for operating a cargo hatch (4, 4) on a cargo ship between open and closed position, characterized in that the arrangement comprises one integrated with the cargo hatch or caravel (2) or mounted in the immediate vicinity thereof. device (7, 8) for collecting and storing energy for operating the cargo hatch (4, 4 ”) without external power supply from systems in the ship. Arrangement according to claim 1, characterized in that with the cargo hatch or caravel (2) in addition to the collection and storage of energy there are also integrated, or installed in the immediate vicinity thereof, control systems associated with the use of the energy, and mechanisms and actuators needed to operate the load hatch (4, 4). Arrangement according to claim 1 or 2, characterized in that the energy source is the ship's movement in the lake, a temperature difference between different structural parts, sunlight or wind. Arrangement according to one of Claims 1 to 3, characterized in that the energy is stored in electrochemical batteries or pressure vessels. S Arrangement according to one of Claims 1 to 4, characterized in that the operation of the load hatches (4, 4 ”) <Q 30 is carried out by means of electric, hydraulic or pneumatic actuators. of 3 Arrangement according to one of Claims 1 to 5, characterized in that there is a control unit (9) on the load hatch (4, 4 ") or the caravel (2) or in the immediate vicinity of these in order to control and regulate the production and storage of energy. Arrangement according to one of Claims 1 to 6, characterized in that a drive unit (10) is arranged on the load hatch (4, 4 ") or the caravel (2) or in the immediate vicinity thereof, which controls motors (6). ) which drives impellers, to operate the load hatch (4, 4). O N O N O <Q I = + 00 O LO 00 O N