A ship's mainmast that can be used for ventilation

Abstract

The utility model discloses a ship foremast can be used for ventilation, it includes the mast body with hollow structure, and the mast body is located deck top, the watertight bulkhead is fixed in the mast body, and the mast body below watertight bulkhead is equipped with the air inlet hole, and the ventilation grid is inlaid in the air inlet hole, the deck is equipped with the through -hole in the area that the mast body bottom surrounds, and the fan is equipped below the through -hole, the cavity of mast body below watertight bulkhead is communicated in the air inlet of fan, and the air outlet of fan is connected with the air duct to the cabin below deck. The utility model can reduce the deck area that ventilation occupies, and can avoid the water inlet problem caused by deck upper wave simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of marine technology, and in particular to a ship's bow mast that can be used for ventilation. Background Technology

[0002] Ships typically need to comply with international maritime collision avoidance rules or inland waterway collision avoidance rules, as well as signal marking requirements for certain navigation areas. The basic configuration of ship navigation lights consists of the foremast light, port light (red), starboard light (green), aft mast light, and stern light, from bow to stern. These lights have requirements not only for visibility angle but also for visibility distance and height. For example, the height of the foremast light must be at least 12 meters above the main deck of the ship.

[0003] Most ships have a forecastle deck to meet the freeboard calculation requirements of the Load Line Convention. The forecastle deck typically houses mooring equipment such as anchor winches, mooring winches, bollards, and guide rollers, as well as the foremast and signaling equipment. Below the forecastle deck, between it and the main deck, are usually rooms such as the bosun's quarters, anchor winch control room, and paint shop. Below the main deck, there are also usually compartments such as the forepeak, bow thruster, and emergency fire pump room. These compartments typically require ventilation systems or air ducts, and some ventilation ducts and air ducts need to be installed above the forecastle deck. Therefore, for some small and medium-sized ships, the forecastle deck area is often quite limited, especially for compartments with high ventilation requirements, such as the bow thruster, where the ventilation ducts or grilles are large, posing certain difficulties in layout. On the other hand, due to the influence of wind and waves, the forecastle deck is more prone to deck surf. If the ventilation ducts or grilles are installed low, seawater backflow is likely to occur; if they are installed high, additional structural reinforcement is required at their base, occupying even more deck area.

[0004] The disadvantages of existing technologies are:

[0005] 1. It occupies a significant amount of deck space, as the foremast and ventilation system both require a certain amount of deck space;

[0006] 2. The ventilation position is set too low, which can easily lead to water entering the deck from waves. If the ventilation position is raised, the bottom of the ventilation will need to be reinforced, which will further reduce the deck area.

[0007] 3. The cost is relatively high, and ventilation requires a separate top structure ventilation, resulting in some waste of steel. Utility Model Content

[0008] The technical problem to be solved by this utility model is to overcome the above-mentioned defects in the existing technology and provide a ship bow mast that can be used for ventilation.

[0009] The present invention solves the above-mentioned technical problems through the following technical solution:

[0010] A ship's bow mast for ventilation includes a hollow mast body positioned above the deck; a watertight bulkhead fixed within the mast body, with an air inlet below the bulkhead and a ventilation grille embedded within the air inlet; a through-hole in the area enclosed by the deck at the bottom of the mast body; a fan positioned below the through-hole; a cavity in the mast body below the watertight bulkhead connected to the fan's air inlet; and an air outlet connected to a duct leading to a compartment below the deck.

[0011] Furthermore, the ventilation grille and mast body are detachably connected.

[0012] Furthermore, the watertight partition and the mast are connected by welding.

[0013] Furthermore, the welds between the watertight bulkhead and the mast are distributed circumferentially along the edge of the watertight bulkhead.

[0014] Furthermore, an elbow plate is provided between the mast and the deck.

[0015] Furthermore, there are two elbow plates, which are respectively located on both sides of the mast.

[0016] Furthermore, a straight ladder is fixed to the mast.

[0017] Furthermore, ventilation grilles are installed on the side of the straight staircase.

[0018] Furthermore, the deck is the chief deck.

[0019] Furthermore, the ventilation grille is located near the watertight partition.

[0020] The beneficial effects of this invention are as follows: This invention can also be used for ventilation of certain cabins in the bow; since there is no need to install additional structural air ducts on the deck, the deck area occupied by ventilation can be reduced, saving the deck layout area required for ventilation. Because the mast structure is relatively strong, ventilation positions can be set as needed, avoiding water ingress caused by waves on the deck. Since no additional structural air ducts are required, costs can be reduced, and steel consumption can be saved. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0022] Figure 2 for Figure 1 View from A in the middle.

[0023] Figure 3 for Figure 1 Schematic diagram of the cross-section of BB.

[0024] Figure 4 for Figure 1 Schematic diagram of the CC section. Detailed Implementation

[0025] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a ship's bow mast that can be used for ventilation includes a mast body 10 with a hollow structure, which is located above a deck 11. Deck 11 is the forecastle deck.

[0027] A watertight baffle 12 is fixed inside the mast. An air inlet is provided on the mast body below the watertight baffle, and a ventilation grille 13 is embedded in the air inlet. Since the location of the ventilation grille is the same as the location of the air inlet, the air inlet is not marked in the attached drawing.

[0028] The ventilation grille 13 and the mast 10 are detachably connected. The ventilation grille 13 is located near the watertight partition 12.

[0029] The watertight partition 12 and the mast 10 are connected by welding. The weld between the watertight partition 12 and the mast 10 is distributed circumferentially along the edge of the watertight partition.

[0030] The deck 11 has a through hole 14 in the area enclosed at the bottom of the mast; a fan 15 is located below the through hole 14; the cavity of the mast located below the watertight bulkhead is connected to the air inlet of the fan 15; the air outlet of the fan 15 is connected to the air duct 16 leading to the compartment below the deck.

[0031] An elbow plate 17 is provided between the mast 10 and the deck 11. There are two elbow plates 17, which are respectively located on both sides of the mast 10.

[0032] A straight ladder 18 is fixed on the mast 10. A protective ring 19 is provided on the outside of the straight ladder. A ventilation grille 13 is provided on the side of the straight ladder 18.

[0033] This invention relates to a ship's foremast that can be used for ventilation. Its basic mast design is similar to existing conventional foremasts. Existing foremasts are generally tall and strong, with a hollow structure in the middle. In this invention, to meet ventilation height requirements, the internal reinforcing ribs of the existing mast are replaced with watertight bulkheads. A detachable ventilation grille is installed on the mast below the watertight bulkhead, forming a structural air duct below the watertight bulkhead. This eliminates the need for a separate structural air duct on the deck surface, as is required in existing technologies. In this invention, a through-hole is opened in the area enclosed by the mast on the forecastle deck. A fan is located below the through-hole, allowing fresh air to be directed to the required cabin spaces through the ventilation grille on the mast.

[0034] This invention utilizes the strong and hollow structure of the bow mast, which can also be used for ventilation of certain cabins at the bow. On the one hand, it can reduce the deck area occupied by ventilation, and on the other hand, it can take advantage of the strong characteristics of the bow mast itself to place the ventilation inlet as high as possible to avoid water entering the deck from the waves.

[0035] This utility model has the following advantages:

[0036] 1. Since there is no need to install additional structural air ducts on the deck, the deck area occupied by ventilation can be reduced, saving the deck layout area required for ventilation.

[0037] 2. The mast structure is relatively strong, and ventilation positions can be set as needed to prevent water ingress caused by waves on the deck.

[0038] 3. Since there is no need to set up additional structural air ducts, costs can be reduced and steel consumption can be saved.

[0039] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A ship's bow mast for ventilation, comprising a mast body with a hollow structure, the mast body being disposed above the deck; characterized in that, The mast is fitted with a watertight bulkhead, and an air inlet is provided on the mast below the watertight bulkhead. A ventilation grille is embedded in the air inlet. The deck has a through hole in the area enclosed at the bottom of the mast. A fan is located below the through hole. The cavity of the mast located below the watertight bulkhead is connected to the air inlet of the fan. The air outlet of the fan is connected to a duct leading to the cabin below the deck.

2. The ship's foremast that can be used for ventilation as described in claim 1, characterized in that, The ventilation grille and mast are detachably connected.

3. The ship's foremast that can be used for ventilation as described in claim 1, characterized in that, The watertight partition and the mast are connected by welding.

4. The ship's foremast that can be used for ventilation as described in claim 2, characterized in that, The welds between the watertight baffle and the mast are distributed circumferentially along the edge of the watertight baffle.

5. The ship's foremast that can be used for ventilation as described in claim 1, characterized in that, An elbow plate is provided between the mast and the deck.

6. The ship's foremast that can be used for ventilation as described in claim 5, characterized in that, There are two elbows, one on each side of the mast.

7. The ship's foremast that can be used for ventilation as described in claim 1, characterized in that, A straight ladder is fixed on the mast.

8. The ship's foremast that can be used for ventilation as described in claim 7, characterized in that, The ventilation grille is located on the side of the straight staircase.

9. The ship's foremast that can be used for ventilation as described in claim 1, characterized in that, The deck is the chief deck.

10. The ship's foremast that can be used for ventilation as described in claim 1, characterized in that, The ventilation grille is located near the watertight partition.

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