Deck cargo ship in form of double-deck head chimney
By using a double-deck design and a central exhaust pipe connection, the problem of insufficient deck space and pipe occupation in single-deck designs has been solved, enabling efficient and economical cargo transportation and reducing maintenance and training costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-03-13
AI Technical Summary
The existing single-deck ship design results in insufficient deck cargo area, piping facilities occupy space, increase operating costs and training requirements, and the complexity of relying on generator sets increases maintenance and operational risks.
The ship features a double-deck design, with an empty space between the main deck and the upper deck serving as a pipeline passage. The funnel and main engine are located at the bow and stern, respectively, and are connected by a midship exhaust pipe to avoid the pipes protruding on the deck. Power is provided by a shaft-driven generator.
It increases the effective use of deck space, reduces maintenance costs, improves cargo loading and unloading efficiency, simplifies operational training requirements, and reduces operational risks.
Smart Images

Figure CN223990129U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of marine equipment technology, specifically relating to a double-deck cargo ship with a bow funnel, which can transport cargo in unlimited navigation areas. Background Technology
[0002] In existing technologies, a single-deck hull design is commonly used. This design is primarily characterized by an electric propulsion system, with the funnel located at the bow. The system uses a generator set to drive twin propellers at the stern for propulsion. In this design, the single deck serves as the main cargo area for stacking and transporting goods.
[0003] However, this single-deck hull design has some obvious drawbacks. First, necessary piping facilities such as vents and air ducts extend directly from the single deck, which not only occupies valuable deck cargo space but may also cause inconvenience to cargo stacking and loading / unloading operations. This layout limits the effective use of deck space and reduces the ship's cargo transportation efficiency.
[0004] Secondly, the vessel's power relies entirely on generator sets, resulting in high initial investment costs. The purchase and installation of generator sets are typically expensive, and they require specialized technical support and maintenance, which not only increases the vessel's operating costs but also raises the skill requirements for the crew. Subsequent maintenance costs are equally significant; regular inspections, repairs, and parts replacements of the generator sets all require additional funding, posing a challenge to the vessel's economic viability.
[0005] Furthermore, due to the complexity of generator set operation, crew members require specialized training to ensure the correct and safe operation of these devices. This not only increases the cost of crew training but also carries the risk of equipment damage due to improper operation, further increasing maintenance costs and operational risks. Utility Model Content
[0006] The purpose of this utility model is to provide a double-deck, bow-fisted cargo ship that can carry out large cargo transportation operations, improve the effective use of deck space, and increase the cargo transportation efficiency of the ship.
[0007] To achieve the above objectives, the present invention provides a deck cargo ship with a double-deck bow funnel. The deck cargo ship has a bow funnel at the bow, a main engine at the stern, an upper deck and a main deck amidships, and a cabin between the upper deck and the main deck. An exhaust channel is provided below the cabin to connect the main engine and the bow funnel.
[0008] Preferably, a safety passage is provided below the exhaust passage.
[0009] Preferably, a bottom ballast water tank is provided below the safety passage.
[0010] Preferably, ballast water tanks are provided on both sides of the exhaust channel and the safety channel.
[0011] Preferably, the deck cargo ship has a steering gear room and a stern mooring area at the stern, and an engine room is located on the side of the steering gear room and stern mooring area near the midships, with the main engine located in the engine room.
[0012] Preferably, an empty compartment is provided between the steering gear compartment and the tail mooring area and the engine compartment.
[0013] Preferably, a tail ballast water tank is provided below the empty compartment located between the steering gear compartment and the tail mooring area and the engine compartment.
[0014] Preferably, the main unit is connected to a propeller and a tail shaft.
[0015] Preferably, the tail shaft is connected to a shaft-driven generator via a propulsion gearbox at the end near the main unit.
[0016] Preferably, the bow section of the deck cargo ship is provided with a bow superstructure.
[0017] In summary, this utility model has the following beneficial technical effects:
[0018] 1. The vessel features a double-deck main deck design, with a unique feature being the cleverly designed space between the upper deck and the main deck as a dedicated channel for the ship's internal piping. This layout effectively prevents pipes from protruding onto the cargo deck and also avoids damage to the specialized coatings in the lower oil tanks, such as fuel tanks and ballast tanks, during welding and cutting operations on the upper deck, thus significantly reducing subsequent maintenance costs.
[0019] 2. In the forward structure of the ship, including the forward superstructure and the funnel, the components are all concentrated at the bow. This design helps to optimize the hull structure.
[0020] 3. At the stern of the vessel, the main engine and propeller are carefully arranged, while the funnel is located at the bow. The main engine's air intake and exhaust are smoothly achieved through a long exhaust pipe in the middle of the hull. This design makes the cargo deck space open and unobstructed, greatly facilitating roll-on / roll-off operations on both sides of the vessel and improving loading and unloading efficiency. Attached Figure Description
[0021] Figure 1 This is a side view of a cargo ship with a double-deck bow funnel according to the present invention.
[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of a double-deck cargo ship with a bow funnel according to the present invention.
[0023] Figure 3 This is a schematic diagram of the plan structure of a double-deck cargo ship with a bow funnel according to the present invention.
[0024] Reference numerals: 1. Steering gear compartment and stern mooring area; 2. Empty compartment; 3. Stern ballast water tank; 4. Engine room; 5. Intermediate ballast water tank; 6. Bottom ballast water tank; 7. Bow superstructure; 8. Bow funnel; 9. Main engine; 10. Propulsion gearbox; 11. Shaft-driven generator; 12. Propeller and tail shaft; 13. Exhaust passage; 14. Safety passage. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] This utility model discloses a double-deck, bow-fisted cargo ship, which aims to overcome the shortcomings of the prior art and achieve efficient transportation of large cargo in unlimited global navigation areas, demonstrating broad market application prospects.
[0027] The main deck of this utility model cargo ship has a double-layer structure. In terms of hull structure, the bow upper deck of the cargo ship is equipped with a bow superstructure 7 and a bow funnel 8, while the stern has a steering gear room and a stern mooring area 1. A space 2 is provided between the midship upper deck and the main deck. The bottom of the midship section is a bottom ballast water tank 6. An exhaust channel 13 connecting the bow funnel 8 is provided between the space 2 and the bottom ballast water tank 6. A safety passage 14 is located directly below the exhaust channel 13. Medium ballast water tanks 5 are symmetrically located on both sides of the exhaust channel 13 and the safety passage 14.
[0028] Below the main deck at the stern, there is an empty compartment 2. Below this empty compartment 2, there is a stern ballast water tank 3. The steering gear room and the stern mooring area 1 are located on the side of the stern ballast water tank 3 away from the midships. On the side of the stern ballast water tank 3 near the midships, there is an engine room 4. The engine room 4 houses the main engine 9, which is connected to the propeller via the tail shaft. The tail shaft is also connected to a shaft-driven generator 11 via a propulsion gearbox 10. This design allows the main engine 9 to not only drive the propeller via the tail shaft but also drive the shaft-driven generator 11 via the propulsion gearbox 10, thus enabling the ship to navigate while simultaneously providing power to all shipboard electrical equipment.
[0029] When the main engine 9 is running, it connects to the bow chimney 8 via exhaust duct 13, achieving ventilation and exhaust functions and ensuring the ship's environmentally friendly and safe operation. In the cross-sectional structural diagram, a double-deck structure consisting of empty compartments 2 can be seen, with intermediate ballast water tank 5 and bottom ballast water tank 6 below. Exhaust duct 13 is located in the middle, and safety passage 14 is located below exhaust duct 13. This design ensures that exhaust duct 13 becomes a high-temperature area during ship navigation, while personnel can safely pass through safety passage 14.
[0030] This utility model of a deck cargo ship has several significant features. First, its main deck adopts a double-layer structure, which cleverly creates a void 2 between the upper deck and the main deck. This void 2 not only serves as a passage for various piping systems, avoiding the problem of pipes protruding from the cargo deck, but also reduces the impact of hot work cutting and welding on the lower oil tanks (such as fuel tanks and ballast tanks), thereby reducing later maintenance costs.
[0031] Secondly, the bow superstructure 7 and bow funnel 8 of this deck cargo ship are designed at the bow of the hull, while the main engine 9 and propeller are located at the stern. This layout, connected by a long exhaust pipe in the middle of the hull, enables the intake and exhaust functions of the main engine 9, making the cargo deck spacious and unobstructed, greatly improving the efficiency of cargo loading and unloading, and allowing roll-on / roll-off cargo operations to be carried out on both port and starboard sides.
[0032] This invention not only improves the efficiency and safety of ship transportation, but also reduces maintenance costs, providing an efficient, economical, and safe solution for the global transportation of large cargo.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A decked cargo ship of twin decked fore- funnel form, characterised in that, The deck cargo ship is provided with a bow funnel (8) at the bow, a main engine (9) at the stern, an upper deck and a main deck at the waist, an empty cabin (2) between the upper deck and the main deck, an exhaust passage (13) below the empty cabin (2) to connect the main engine (9) and the bow funnel (8).
2. A decked cargo ship of the twin decked fore- funnel form according to claim 1, characterised in that, A safety passage (14) is arranged below the exhaust passage (13).
3. A decked cargo ship of the twin decked fore funnel form according to claim 2, characterised in that, A bottom ballast water tank (6) is arranged below the safety passage (14).
4. A deck cargo ship of the twin deck, fore- funnel form according to claim 3, characterised in that A middle ballast water tank (5) is arranged on both sides of the exhaust passage (13) and the safety passage (14).
5. A deck cargo ship of the twin decked fore- funnel form according to claim 1, characterized in that The stern of the deck cargo ship is provided with a rudder room and a stern mooring area (1), a machinery room (4) is arranged near one side of the waist of the rudder room and the stern mooring area (1), and the main engine (9) is arranged in the machinery room (4).
6. A deck cargo ship of the twin deck, fore- funnel form according to claim 5, characterised in that An empty cabin (2) is further arranged between the rudder room and the stern mooring area (1) and the machinery room (4).
7. A decked cargo ship of the twin decked fore- funnel form according to claim 6, characterised in that, A stern ballast water tank (3) is arranged below the empty cabin (2) between the rudder room and the stern mooring area (1) and the machinery room (4).
8. A deck cargo ship of the twin decked fore- funnel form according to claim 1, characterized in that The main engine (9) is connected with a propeller and a tail shaft (12).
9. A deck cargo ship of the twin decked fore- funnel form according to claim 8, characterised in that, The end of the tail shaft near the main engine (9) is drivingly connected with a shaft generator (11) through a propulsion gear box (10).
10. A deck cargo ship of the twin decked fore- funnel form according to claim 1, characterized in that The bow of the deck cargo ship is provided with a bow superstructure (7).