CN213974414U

CN213974414U - Natural gas driven ship

Info

Publication number: CN213974414U
Application number: CN202021537576.9U
Authority: CN
Inventors: 史长林; 卢云军; 彭彦
Original assignee: Hubei Donghan Green Shipping Co ltd
Current assignee: Hubei Donghan Green Shipping Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-08-17
Anticipated expiration: 2030-07-29

Abstract

The utility model provides a natural gas driven boats and ships, which comprises a ship body, be equipped with cabin and rudder oar cabin in the deck of hull, still include: the steering oar is arranged in the steering oar cabin, comprises a propulsion shaft and blades arranged on the propulsion shaft, and is suitable for propelling a ship; the generator set comprises a first natural gas generator and a second natural gas generator and is arranged in the engine room; the propulsion unit comprises a natural gas engine and a propulsion motor which are connected with each other; the propulsion motor is connected with the generator set through a cable; the propulsion motor is arranged above the contra-rotating steering oar and is connected with a propulsion shaft of the steering oar; and the LNG tank cabinet is arranged on the engine room, is connected with the generator set and the natural gas engine and is suitable for storing natural gas. Natural gas driven boats and ships, consume that the regulating power adapts to multiple waters environment and energy saving and emission reduction by force.

Description

Natural gas driven ship

Technical Field

The utility model belongs to inland river transport ship field, concretely relates to natural gas driven boats and ships.

Background

The conventional inland river transport ship is provided with double propellers, and the stationary propellers are driven by the main engine to enable the ship to obtain propulsive force.

However, due to the limitation of the actual working conditions of the inland river, the operation power of the main engine is far from the actual power required by the ship, and the inland river transport ship adopting the traditional diesel main engine has a limited power regulation range, so that once the main engine operates under the condition of low load for a long time, the diesel is not fully combusted, a large amount of high-quality pollutants are generated, and the environment is greatly influenced.

In view of this, it is desirable to provide a natural gas driven ship with a large power regulation range, high adaptability, energy saving and environmental protection.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem that a natural gas driven ship that power control range is big, strong adaptability and energy-concerving and environment-protective is provided.

The utility model discloses a natural gas driven boats and ships, which comprises a ship body, be equipped with cabin and rudder oar cabin in the deck of hull, still include:

the steering oar is arranged in the steering oar cabin, comprises a propulsion shaft and blades arranged on the propulsion shaft, and is suitable for propelling a ship;

the generator set comprises a first natural gas generator and a second natural gas generator and is arranged in the engine room;

the propulsion unit comprises a natural gas engine and a propulsion motor which are connected with each other; the propulsion motor is connected with the generator set through a cable; the propulsion motor is arranged above the steering oar and is connected with a propulsion shaft of the steering oar;

and the LNG tank cabinet is arranged on the engine room, is connected with the generator set and the natural gas engine and is suitable for storing natural gas.

Further, the driving shaft of the natural gas engine is connected with the propulsion motor through a connecting piece.

Further, the connecting piece comprises a connecting shaft and an elastic coupling; the two elastic couplings are respectively positioned at two ends of the connecting shaft.

Furthermore, the rudder propellers are two groups, symmetrically arranged at two sides of the rudder propeller cabin and connected with the propulsion motor.

Furthermore, the propulsion units are arranged in two groups, symmetrically arranged on two sides inside the engine room and respectively suitable for being connected with the two groups of steering paddles.

Further, still include the LNG switch board, with the LNG tank cabinet is connected, is suitable for control the LNG tank cabinet.

Furthermore, the direct-current variable-frequency bus bar control cabinet is further included, is connected with the generator set and is suitable for controlling the power supply of the generator set.

Further, the storage battery is arranged in the cabin and connected with the direct-current variable-frequency busbar control cabinet, and the storage battery is suitable for providing standby power for the ship.

Further, the blades of the contra-rotating steering oar comprise a front propeller and a rear propeller; the front propeller is a four-blade propeller; the rear propeller is a five-blade propeller.

Above-mentioned technical scheme of the utility model, compare prior art and have following advantage:

the natural gas driven ship of the utility model is connected with the propulsion motor through a group of natural gas engines to control the starting of the natural gas engines, so as to realize the power superposition of the natural gas engines and the propulsion motor and further maximize the propulsion force for the contra-rotating steering oar; meanwhile, when the propelling force demand is reduced, the natural gas engine is turned off, the propelling motor operates independently under the condition of power supply of the natural gas generator, the energy-saving function is further realized, the requirements of the ship under different working conditions are met, the power adjusting range of the ship is large, and the adaptability is high.

Drawings

FIG. 1 is a top view of a natural gas powered watercraft provided in accordance with an embodiment of the present invention;

FIG. 2 is a side view of a natural gas powered watercraft as provided by an embodiment of the present invention;

wherein, 1 turn the rudder paddle; 2. a first natural gas generator; 3. a second natural gas generator; 4. a natural gas engine; 5. a propulsion motor; 6. a connecting shaft; 7. an elastic coupling; 8. an LNG tank cabinet; 9. the direct current frequency conversion busbar control cabinet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The natural gas powered ship of this embodiment, as shown in fig. 1-2, includes a hull, and an engine room and a rudder propeller cabin are provided in a deck of the hull, and further includes:

the steering oar 1 is arranged in the steering oar cabin, comprises a propulsion shaft and blades arranged on the propulsion shaft, and is suitable for propelling a ship;

the generator set comprises a first natural gas generator 2 and a second natural gas generator 3, and is arranged in the engine room;

a propulsion unit comprising a natural gas engine 4 and a propulsion motor 5 connected to each other; the propulsion motor is connected with the generator set through a cable; the propulsion motor 5 is arranged above the steering oar and connected with the propulsion shaft of the steering oar 1.

And the LNG tank cabinet 8 is arranged on the engine room, is connected with the generator set and the natural gas engine 4, and is suitable for storing natural gas. The upper end of the LNG tank cabinet 8 is provided with an output port, the output port is connected with the natural gas engine through a pipeline, and the pipeline is provided with a safety valve.

Further, the driving shaft of the natural gas engine 4 is connected with the propulsion motor 5 through a connecting piece. Because the natural gas engine 4 and the propulsion motor 5 of this embodiment are located respectively the cabin with in the rudder propeller cabin, connect through the connecting piece the natural gas engine 4 with the propulsion motor 5, and then guarantee the common effective work between the natural gas engine 4 with the propulsion motor 5.

Further, the specific arrangement of the connecting member in this embodiment is that the connecting member includes a connecting shaft 6 and an elastic coupling 7; the elastic coupling 7 is two, is located respectively 6 both ends of connecting axle, and respectively with natural gas engine 4 and propulsion motor 5 are connected, through elastic coupling 7 with connecting axle 6 has improved the stability of being connected between natural gas engine 4 and the propulsion motor 5, has improved the efficiency when impelling. In this embodiment, a gearbox is further arranged between the natural gas engine 4 and the elastic coupling 7, and the rotating speed directly output when the natural gas engine 4 is propelled can be changed through the gearbox, so that the propulsion force with larger torque is provided for the rudder propeller 1.

In order to further increase the propelling force to the ship in this embodiment, the two sets of the rudder propellers 1 are symmetrically arranged on two sides of the rudder propeller cabin and connected with the propulsion motor 5. Meanwhile, the two groups of propulsion units are symmetrically arranged on two sides inside the engine room and are respectively suitable for being connected with the two groups of steering propellers 1.

In order to facilitate the control of the natural gas engine 4 in this embodiment, the LNG control cabinet (not shown in the figure) is connected to the LNG tank cabinet 8 and adapted to control the LNG tank cabinet 8, the LNG control cabinet controls the LNG tank cabinet 8 to supplement the natural gas engine 4 with natural gas fuel, and the operating state of the LNG tank cabinet 8 can be monitored and maintained. The LNG control cabinet is a mature product in the prior art and can be obtained through a conventional purchasing way.

In order to further improve the control of the power supply of the power generating set by the embodiment, the power generating set further comprises a direct-current variable-frequency busbar control cabinet 9 which is connected with the power generating set and is suitable for controlling the power supply of the power generating set.

In order to further improve the overall control of the embodiment on the ship power, the ship power supply further comprises a storage battery, which is arranged in the engine room, connected with the direct-current variable-frequency busbar control cabinet 9 and suitable for providing standby power.

In order to further improve the working efficiency of the present embodiment, the rudder propeller 1 in the present embodiment is a contra-rotating rudder propeller, which has better stability and propulsion efficiency than the common rudder propeller 1, and can further improve the propulsion efficiency of the present embodiment. In this embodiment, the contra-rotating rudder propeller is specifically configured in such a manner that blades of the contra-rotating rudder propeller include a front propeller and a rear propeller; the front propeller is a four-blade propeller; the rear propeller is a five-blade propeller.

The use method of the natural gas driven ship in the embodiment is as follows: when the ship runs with low power consumption, the natural gas engine 4 is turned off, the natural gas generator set supplies power to the propulsion host, and the propulsion host drives the contra-rotating rudder propeller to rotate and run, so that the ship normally sails; when the natural gas generator set runs at medium power, the natural gas generator set supplies power to the ship only through the direct-current variable-frequency busbar control cabinet 9, the main engine is pushed to stand by at the moment, the natural gas engine 4 is started, and the natural gas engine 4 drives the contra-rotating steering oar to rotate and run, so that the ship normally sails; when the natural gas engine 4 and the propulsion main machine work at the same time when the natural gas engine runs at high power, the contra-rotating rudder propeller is driven by the maximum power.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a natural gas driven boats and ships, includes the hull, be equipped with cabin and rudder oar cabin in the deck of hull, its characterized in that still includes:

the LNG tank cabinet is arranged on the engine room, connected with the generator set and the natural gas engine and provided with a sealed cavity suitable for storing natural gas.

2. The natural gas powered watercraft of claim 1, wherein a drive shaft of the natural gas engine is connected to the propulsion motor by a connection.

3. The natural gas powered watercraft of claim 2, wherein the connection comprises a connection shaft and an elastic coupling; the two elastic couplings are respectively positioned at two ends of the connecting shaft and are respectively connected with the natural gas engine and the propulsion motor.

4. The natural gas powered watercraft of claim 3 wherein there are two sets of said steering paddles symmetrically disposed on either side of said steering paddle compartment and connected to said propulsion motor.

5. The natural gas powered watercraft of claim 4 wherein the propulsion units are in two sets, symmetrically disposed on opposite sides of the interior of the engine room, and adapted to be connected to the two sets of steering paddles.

6. The natural gas driven vessel of claim 5, further comprising an LNG control cabinet coupled to the LNG tank cabinet and adapted to control the LNG tank cabinet.

7. The natural gas driven ship of claim 6, further comprising a DC variable frequency busbar control cabinet connected to the generator set and adapted to control the generator set to supply power.

8. The natural gas driven ship of claim 7, further comprising a storage battery, wherein the storage battery is arranged in the cabin and connected with the direct current variable frequency busbar control cabinet, and is suitable for providing ship standby power.

9. The natural gas driven vessel of claim 8, wherein the rudder paddles are contra-rotating rudder paddles.

10. The natural gas powered watercraft of claim 9, wherein the contra-rotating rudder propeller blades comprise a front propeller and a rear propeller; the front propeller is a four-blade propeller; the rear propeller is a five-blade propeller.