Container ship steering engine chamber capable of guaranteeing stability of broken cabin

Abstract

According to the container ship steering engine chamber capable of guaranteeing the cabin breaking stability, an air pipe is laid on the upper portion of the interior of a stern steering engine chamber or a CO2 chamber or a cable warehouse, the air pipe is transversely laid, extends to the bow direction, then bends upwards to penetrate through a mooring deck, is connected with an air supply fan after penetrating through the mooring deck, and then extends upwards to a structural box on the lower surface of a main deck. The main deck is communicated with the structural box, a hole is formed in the main deck on the upper surface of the structural box, the structural box is communicated with the hatch coaming after the hole is formed, and a blind window is arranged on the side wall, adjacent to the binding bridge, of the hatch coaming. According to the ventilation arrangement scheme, it can be guaranteed that enough space can be reserved in the main deck for passing and binding operation, compared with a traditional air pipe deck-penetrating inoculation type hood, the structural air duct can be arranged in an existing structural arrangement mode, maneuverability is high, meanwhile, the weather-tight shutters are convenient to install, the occupied space is small, and cost is low. The deck space can be effectively saved, and the cabin breaking stability calculation result is effectively met.

Description

Technical Field

[0001] This invention belongs to the field of marine vessel design and construction, and specifically relates to a steering gear room for a container ship that ensures stability in the event of a hull breach. Background Technology

[0002] Ventilation arrangements for the steering gear room, CO2 room, and cable storage at the stern of a container ship typically involve ductwork leading to the stern mooring deck, where fans and mushroom-shaped ventilation caps are installed. Because the stern deck of a container ship is sunken, for some "tall and slender" hull types, the height of the mooring deck from the main deck often exceeds 4 meters. To ensure compliance with damage stability calculations, ventilation entrances and exits must be located above the main deck. Since the stern main deck is loaded with containers, and the arrangement of lashing bridges at the fore and aft must also consider passage space, there is usually little extra space available for mushroom-shaped ventilation caps. Therefore, conventional designs often sacrifice some container loading space for fans, leaving room for ventilation caps, thus reducing the number of containers loaded. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a steering gear room for container ships that ensures stability during damage, and the technical solution adopted is as follows:

[0004] A container ship steering gear room designed to ensure stability during shipwreck damage includes a duct laid above the stern steering gear room, CO2 room, or cable warehouse. The duct extends laterally to the bow, then bends upward to penetrate the mooring deck, connects to a ventilation fan, and continues upward to a structural box on the lower surface of the main deck. The structural box is connected to an opening on the main deck surface above the structural box, which connects to the hatch coaming. Louvers are installed on the sidewalls adjacent to the lashing bridge of the hatch coaming.

[0005] Furthermore, the aforementioned container ship steering gear room, which ensures stability in the event of a hull breach, provides passage and operational space between the hatch coaming and the lashing bridge.

[0006] Furthermore, the aforementioned container ship steering gear room that ensures stability during hull damage has multiple ventilation grilles on the surface of the air duct located in the stern steering gear room, CO2 room, or cable house, with the multiple ventilation grilles arranged at equal intervals.

[0007] Furthermore, in the aforementioned container ship steering gear room designed to ensure stability during hull damage, the ventilation fan is located near the sinking deck.

[0008] Furthermore, in the aforementioned container ship steering gear room designed to ensure stability in the event of a hull breach, the bottom edge of the louvers is positioned at a distance greater than 760mm from the main deck.

[0009] Furthermore, in the aforementioned container ship steering gear room designed to ensure stability during hull damage, the width of the structural box is greater than the diameter of the air duct.

[0010] This ventilation arrangement scheme can meet the damage stability calculation results while ensuring that the main deck has enough space for passage and lashing operations. Compared with the traditional form of ductwork penetrating the deck and connecting to the ventilator, the structural duct can be set up using the existing structural layout, which is highly mobile. At the same time, the wind and rain louvers are easy to install, occupy little space, and can save deck space. While meeting the requirements for loading, passage and operation space, it effectively meets the damage stability calculation results. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention;

[0012] Among them, 1-air duct, 2-ventilation grille, 3-air supply fan, 4-structural box, 5-hatch enclosure, and 6-louvers. Detailed Implementation

[0013] The invention will be further described with reference to the accompanying drawings.

[0014] like Figure 1 As shown, a container ship steering gear room designed to ensure stability during damage includes a duct with ventilation grilles that extends from the stern steering gear room, CO2 room, or cable house, passing through the mooring deck near the forward wall of the cabin. The duct is typically a square duct, with its diameter determined by ventilation volume calculations. Ventilation grilles distributed at different locations on the duct ensure normal air exchange in all areas of the cabin.

[0015] Generally, a cabin will be equipped with two ventilation ducts: one for supply air and one for exhaust air. The supply air duct needs to actively draw in air through a fan. The pressure difference between the air entering the cabin and the outside is balanced through the exhaust air duct. Therefore, the exhaust air duct is usually for natural ventilation and does not require the installation of a fan.

[0016] Taking the air supply duct as an example, the duct passes through the mooring deck and connects to the air supply fan. The fan is installed near the lower deck for easy maintenance and repair. The upper end of the fan connects to another duct, which runs onto a structural box inverted on the lower surface of the main deck. The size and form of this structural box are based on the actual structure of the ship, facilitating structural design and on-site welding of structural plates, but ensuring that the duct diameter is adequately accommodated. An opening is made on the main deck surface of the structural box. The opening's length direction does not exceed the coverage area of ​​the hatch coaming on the main deck. The hatch coaming is a unique structure for cargo ships such as container ships and bulk carriers equipped with large hatch covers. This design naturally utilizes the thickness of the hatch coaming as a structural air duct, requiring only the addition of stern and side plates. An opening is made on the stern side of the structural air duct, with the opening size determined by airflow calculations. According to specifications, the lower edge of the opening must exceed the main deck by 760mm. A weatherproof louver of the corresponding opening size is then installed at the opening. The louvers used in this design are weatherproof, which can effectively prevent waves from entering the air duct. During the daily operation of the ship, the louvers can be kept open, and the covers can be flipped down and fixed to the structural surface by a fixing device.

Claims

1. A steering gear room for a container ship that ensures stability during damage, characterized in that, A duct (1) is laid above the stern steering gear room, CO2 room, or cable rack. The duct is laid horizontally and extends to the bow direction, then bends upward to penetrate the mooring deck. After penetrating the mooring deck, it is connected to the ventilation fan. After the connection, it extends upward to the structural box (4) on the lower surface of the main deck and is connected to the structural box. An opening is provided on the main deck on the upper surface of the structural box. After the opening, the structural box is connected to the hatch coaming (5). Louvers (6) are provided on the side wall adjacent to the lashing bridge of the hatch coaming.

2. The container ship steering gear room for ensuring stability during damage as described in claim 1, characterized in that, There is space for passage and operation between the hatch coaming and the lashing bridge.

3. The container ship steering gear room for ensuring stability during damage as described in claim 1, characterized in that, Multiple ventilation grilles (2) are provided on the surface of the air duct located in the stern steering gear room, CO2 room or cable warehouse, with the multiple ventilation grilles set at equal intervals.

4. The container ship steering gear room for ensuring stability during damage as described in claim 1, characterized in that, The air supply fan (3) is located near the sunken deck.

5. The container ship steering gear room for ensuring stability during damage as described in claim 1, characterized in that, The distance between the bottom edge of the louvers and the main deck is greater than 760mm.

6. The container ship steering gear room for ensuring stability during damage as described in claim 1, characterized in that, The width of the structural box is greater than the diameter of the air duct.

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