Small trailing suction dredger driven by hybrid power

Abstract

The utility model relates to the technical field of ships, in particular to a small-sized trailing suction dredger driven by hybrid power, which comprises a dredger body, the lower part of the right side of the dredger body is sequentially provided with a head side pusher and a ballast tank from left to right, and the upper part of the left side of the dredger body is symmetrically provided with trailing suction pipe devices; one output end of the main diesel engine is connected with a main engine gear box and an axle generator, the output end of the main engine gear box penetrates through the ship body and is provided with a controllable-pitch propeller, the other output end of the main diesel engine is connected with speed reduction connecting devices, and the output end of one speed reduction connecting device is connected with a dredge pump. And the output end of the other speed reduction connecting device is connected with a high-pressure flushing pump. The combined driving mode is adopted, single-harrow operation of the harrow suction pipe device can be achieved, single-harrow operation can be achieved at a port with narrow channel width without turning around, the total installed power of the whole ship is reduced, ship vibration and noise are physically isolated, the living comfort of personnel is improved, and the combined driving type harrow suction pipe device has good market prospects.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a small-sized trailing suction dredger driven by a composite power. Background Art

[0002] In existing small-scale trailing suction dredgers, the propeller is generally driven by a diesel engine located in the stern engine room, and the mud pump is located at the bow and driven independently by the diesel engine. A mud tank and several mud doors are set between the engine room and the pump room. The living cabin is located above the stern engine room. That is, it is an independently driven type. Its disadvantages are large total installed power, poor environmental protection, and a large workload for routine maintenance. The large space occupied by the equipment leads to a large overall size and displacement of the entire ship, which cannot be used in shallow draft operation areas. The diesel engine is driven alone, and power transfer and management cannot be achieved, and the automation is low.

[0003] The existing technology also has a generator set located in the rear engine room to power the propeller and the entire ship power system, that is, a fully electric drive type. Its disadvantage is that the power station setting is relatively complex, and the power transfer function can be realized, but the management and use are very cumbersome, the requirements for operators are also very high, and the initial investment is high.

[0004] In order to solve the shortcomings of the existing technology, we propose a small-scale trailing suction dredger driven by a composite power. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a small-sized trailing suction dredger driven by a composite power, so that it can operate in coastal areas and sail in offshore areas, and can be applied to waterway maintenance work in coastal areas and inland rivers, and has a good market prospect.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A small-sized trailing suction dredger driven by a composite power is designed, comprising a hull, wherein a bow thruster and a ballast tank are installed one after another on the lower right side of the hull from left to right, a trailing suction pipe device is symmetrically installed on the upper left side of the hull, a mud tank is provided in the middle of the hull, a main diesel engine is symmetrically installed inside the left side of the hull, one output end of the main diesel engine is connected to a main engine gearbox and a shaft-belt generator, an output end of the main engine gearbox is penetrated through the hull and an adjustable pitch propeller is installed, the other output end of the main diesel engine is connected to a reduction connecting device, one output end of the reduction connecting device is connected to a mud pump, and the other output end of the reduction connecting device is connected to a high-pressure flushing pump, and one end of the high-pressure flushing pump and the mud pump are both connected to the trailing suction pipe device.

[0008] Preferably, a watertight bulkhead is installed inside the hull, the high-pressure flushing pump and the mud pump are located on one side of the watertight bulkhead, and the speed reduction connecting device is located on the other side of the watertight bulkhead.

[0009] Preferably, the bow thruster is located at the bow, the main diesel engine is located at the stern, and a deckhouse is placed on the upper part of the hull, and the deckhouse is located above the bow thruster.

[0010] Preferably, a generator set is installed inside the hull.

[0011] The utility model proposes a small-scale trailing suction dredger driven by a composite power, and its beneficial effects are as follows: the utility model adopts a composite driving mode, in which one main diesel engine drives a mud pump via a reduction connecting device, and drives an adjustable pitch propeller and a shaft-belt generator via a main engine gearbox; the other main diesel engine drives a high-pressure flushing pump via a reduction connecting device, and drives an adjustable pitch propeller and a shaft-belt generator via a main engine gearbox; the trailing suction pipe device can realize single-raking operation, and ports with narrow waterway widths can realize single-raking operation without turning around, and share a set of main diesel engines, thereby reducing the total installed power of the whole ship, physically isolating the vibration and noise of the ship, and improving the living comfort of personnel. It can be suitable for waterway maintenance work in coastal areas and inland rivers, and has good market prospects.

[0012] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a front view structural diagram of a small trailing suction dredger driven by a composite power proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the top view of a small trailing suction dredger driven by a composite power proposed by the utility model;

[0016] Figure 3 The utility model provides a schematic diagram of the internal structure of a composite-power-driven small-sized trailing suction dredger when viewed from above.

[0017] In the figure: adjustable pitch propeller 1, main diesel engine 2, mud tank 3, rake suction pipe device 4, mud pump 5, reduction connection device 6, bow thruster 7, ballast tank 8, high-pressure flushing pump 9, main engine gear box 10, shaft generator 11, generator set 12, watertight bulkhead 13, deck house 14, hull 15. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1-3 A small trailing suction dredger driven by a composite power comprises a hull 15. A bow thruster 7 and a ballast tank 8 are installed one after another on the lower right side of the hull 15 from left to right. The bow thruster 7 assists the ship in adjusting the course or berthing with the dock. The ballast tank 8 is used to adjust the floating state of the ship. A trailing suction pipe device 4 is symmetrically installed on the upper left side of the hull 15. The gate valve is used to switch to use the single-side trailing suction pipe device 4. A mud tank 3 is provided in the middle of the hull 15. A main diesel engine 2 is symmetrically installed inside the left side of the hull 15. The main diesel engine 2 One output end is connected to a main engine gearbox 10 and a shaft generator 11, which provides power for electrical equipment throughout the ship. The output end of the main engine gearbox 10 passes through the hull 15 and is equipped with an adjustable pitch propeller 1. The other output end of the main diesel engine 2 is connected to a reduction connecting device 6, one output end of which is connected to a mud pump 5, and the other output end of which is connected to a high-pressure flushing pump 9. One end of the high-pressure flushing pump 9 and the mud pump 5 are both connected to a rake suction pipe device 4.

[0020] A watertight bulkhead 13 is installed inside the hull 15. The high-pressure flushing pump 9 and the mud pump 5 are located on one side of the watertight bulkhead 13, and the speed reduction connecting device 6 is located on the other side of the watertight bulkhead 13. The main diesel engine 2 and the mud pump 5 are separated by the watertight bulkhead 13 to avoid damage to the main diesel engine 2 when the mud pump 5 is damaged, thereby enhancing the reliability of the operation.

[0021] The bow thruster 7 is located at the bow, the main diesel engine 2 is located at the stern, and a deckhouse 14 is placed on the upper part of the hull 15. The deckhouse 14 is located above the bow thruster 7. The crew controls the ship forward or backward in the deckhouse 14 near the bow, which physically isolates the ship from vibration and noise and improves the living comfort of the personnel.

[0022] A generator set 12 is installed inside the hull 15 for backup use, and can be switched for use at any time when the shaft generator 11 fails.

[0023] Working principle: When sailing, the main diesel engine 2 drives the adjustable pitch propeller 1 and the shaft generator 11 through the main engine gearbox 10. The crew controls the ship forward or backward at the bow position of the deckhouse 14, and assists the ship to adjust its course or dock with the pier through the bow thruster 7. The shaft generator 11 provides power for the electrical equipment of the whole ship. The generator set 12 is in standby and can be switched at any time when the shaft generator 11 fails. The buoyancy of the ship is adjusted through the ballast tank 8.

[0024] During dredging operations, the main diesel engine 2 on one side drives the adjustable pitch propeller 1 through the main engine gear box 10, while the free end drives the mud pump 5 through the reduction connection device 6; the main diesel engine 2 on the other side drives the adjustable pitch propeller 1 through the main engine gear box 10, while the free end drives the high-pressure flushing pump 9 through the reduction connection device 6, and the rake suction pipe device 4 is lowered to the seabed. The high-pressure flushing pump 9 provides high-pressure water to the end of the single-sided rake suction pipe device 4 to crush the soil, and the mud pump 5 sucks the mud into the mud tank 3 through the single-sided rake suction pipe device 4 and the mud pipe, thereby realizing the function of single rake operation while sailing, and the generator set 12 provides power for the electrical equipment of the entire ship.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A small-sized trailing suction dredger driven by a composite power, comprising a hull (15), characterized in that: The lower right side of the hull (15) is provided with a bow thruster (7) and a ballast tank (8) from left to right, the upper left side of the hull (15) is symmetrically provided with a rake suction pipe device (4), the middle part of the hull (15) is provided with a mud tank (3), the left side of the hull (15) is symmetrically provided with a main diesel engine (2), one output end of the main diesel engine (2) is connected with a main engine gearbox (10) and a shaft generator (11), the output end of the main engine gearbox (10) is provided with an adjustable pitch propeller (1) through the hull (15), the other output end of the main diesel engine (2) is connected with a reduction connecting device (6), one output end of the reduction connecting device (6) is connected with a mud pump (5), and the other output end of the reduction connecting device (6) is connected with a high-pressure flushing pump (9), and one end of the high-pressure flushing pump (9) and the mud pump (5) are both connected to the rake suction pipe device (4).

2. A small trailing suction dredger driven by a composite power according to claim 1, characterized in that: A watertight bulkhead (13) is installed inside the hull (15), the high-pressure flushing pump (9) and the mud pump (5) are located on one side of the watertight bulkhead (13), and the speed reduction connection device (6) is located on the other side of the watertight bulkhead (13).

3. A small trailing suction dredger driven by a composite power according to claim 1, characterized in that: The bow thruster (7) is located at the bow, the main diesel engine (2) is located at the stern, and a deckhouse (14) is placed on the upper part of the hull (15), and the deckhouse (14) is located above the bow thruster (7).

4. A small trailing suction dredger driven by a composite power according to claim 1, characterized in that: A generator set (12) is installed inside the hull (15).

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