阅读说明：本技术 一种灵便型液化天然气运输船 (Convenient liquefied natural gas carrier ) 是由 刘祯 刘明清 姜峰 胡正强 徐勇勇 于 2020-05-28 设计创作，主要内容包括：本发明公开了一种灵便型液化天然气运输船,旨在解决天然气运输船受航道的限制,航行和靠泊不便的不足。该发明包括船体,船体上设置液化天然气储罐、主推进器、两侧向推进器,主推进器安装在船体尾部作为推动船体的动力,两侧向推进器分别安装在船体首部左右两侧壁上,侧向推进器包括转轴、推进叶片,推进叶片安装在转轴上。这种灵便型液化天然气运输船的航行和靠泊方便。(The invention discloses a flexible liquefied natural gas carrier, aiming at solving the defects that the natural gas carrier is limited by a channel and is inconvenient to sail and berth. The invention comprises a ship body, wherein a liquefied natural gas storage tank, a main propeller and two lateral propellers are arranged on the ship body, the main propeller is arranged at the tail part of the ship body and is used as power for propelling the ship body, the two lateral propellers are respectively arranged on the left side wall and the right side wall of the head part of the ship body, each lateral propeller comprises a rotating shaft and a propelling blade, and the propelling blades are arranged on the rotating shafts. The flexible liquefied natural gas carrier is convenient to sail and berth.)

1. The utility model provides a nimble type liquefied natural gas transport ship, characterized by includes the hull, sets up liquefied natural gas storage tank, main propeller, both sides on the hull to the propeller, and main propeller installs the power as promoting the hull at hull afterbody, and both sides are installed respectively on the wall of hull prelude left and right sides to the propeller, and the side direction propeller includes pivot, propulsion blade, and the propulsion blade is installed in the pivot.

2. The flexible liquefied natural gas carrier as claimed in claim 1, wherein a loading and unloading station is provided on the hull near the side, and a hose tower crane is provided on the hull near the loading and unloading station.

3. The flexible lng carrier as claimed in claim 1, wherein the hull is provided with a boil-off gas compression room, and a BOG compressor is installed in the boil-off gas compression room.

4. The flexible lng carrier as claimed in claim 1, wherein a deep submersible pump is installed in the lng storage tank.

5. The flexible lng carrier as set forth in claim 1, wherein the shaft is rotated by a motor.

6. The flexible liquefied natural gas carrier as claimed in any one of claims 1 to 5, wherein the lateral auxiliary propulsion mechanisms are mounted on both the left and right side walls of the head of the hull, each lateral auxiliary propulsion mechanism comprises a lifting piston cylinder, a lifting seat, a guide plate and an adjusting piston cylinder, the lifting seats are arranged on the side walls of the hull in a lifting manner, telescopic rods of the lifting piston cylinders are connected with the lifting seats, the adjusting piston cylinders are hinged on the lifting seats, one sides of the guide plates are hinged on the lifting seats, the other sides of the guide plates are hinged with the telescopic rods of the adjusting piston cylinders, and the guide plates are arranged in a manner.

7. The flexible LNG carrier as claimed in claim 6, wherein the auxiliary propulsion units are installed on both left and right sidewalls of the rear portion of the body, and a deflector installed on the auxiliary propulsion units is inclined outward from the rear to the front.

8. The flexible lng carrier as claimed in claim 6, wherein the side walls of the hull are provided with elevating rails corresponding to the auxiliary lateral propulsion units, and the elevating base is slidably mounted on the elevating rails.

9. A flexible LNG carrier as claimed in claim 6, wherein the guide plate has a plurality of fins hinged to the outer surface thereof, the fins are attached to the guide plate, a support rod is mounted on the lift seat near the hinge point of the guide plate, an upper guide wheel and a lower guide wheel are mounted at the upper and lower ends of the support frame, a transition guide wheel is mounted on the lift seat, the transition guide wheel is disposed near the connection side of the guide plate and the lift cylinder, the fins are hinged to the guide plate near the end of the support rod, a pull rope is connected to the other end of the fins, the pull rope is connected to the connection side of the guide plate and the lift cylinder after passing through the upper guide wheel, the lower guide wheel and the transition guide wheel in sequence, and an.

10. The flexible lng carrier as set forth in claim 9, wherein a restoring torsion spring is installed between the flow blocking fin and the flow guide plate.

Technical Field

The invention relates to a transport ship, in particular to a flexible and convenient liquefied natural gas transport ship.

Background

At present, natural gas exploited in deep sea is usually transported by large natural gas transport ships, but the large natural gas cannot be berthed due to the limitation of some port facilities and channels. Even in areas where dock facilities and channel conditions are superior, the use of large natural gas carriers would incur a significant expense, resulting in increased costs.

Disclosure of Invention

The invention overcomes the defects that a natural gas transport ship is limited by a navigation channel and is inconvenient to navigate and berth, and provides a flexible liquefied natural gas transport ship which is convenient to navigate and berth.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a nimble type liquefied natural gas transport ship, includes the hull, sets up liquefied natural gas storage tank, main propeller, both sides on the hull to the propeller, and main propeller installs the power as promoting the hull at hull afterbody, and both sides are installed respectively on hull prelude left and right sides wall to the propeller, and the side direction propeller includes pivot, propulsion blade, and the propulsion blade is installed in the pivot.

The liquefied natural gas storage transports in the liquefied natural gas storage tank, and the main propeller through installing at the afterbody drives the hull as power and marchs, when the hull reaches the pier and carries out the pier and lean on the berth, promotes the hull lateral shifting through the lateral thruster, makes the hull lean on to the bank, need not the tug assistance. In the navigation process of a narrow channel, when the ship body deviates, the ship body is corrected through the lateral thruster, so that the ship body can smoothly pass through the narrow channel, and the ship is flexible and convenient. The flexible liquefied natural gas carrier is convenient to sail and berth.

As the preferred, be close to the side position on the hull and be equipped with the loading and unloading station, be close to the loading and unloading station position installation hose tower crane on the hull. The loading and unloading station is convenient for loading and unloading goods. The hose tower crane is convenient for the hose to move.

Preferably, a volatile gas compression room is arranged on the ship body, and a BOG compressor is arranged in the volatile gas compression room. The BOG compressor compresses the volatile gas for reuse, and waste is avoided.

Preferably, a deep submersible pump is installed in the liquefied natural gas storage tank. The deep submersible pump is convenient for conveying the liquefied natural gas.

Preferably, the rotating shaft is driven to rotate by a motor. Compared with an engine, the motor has faster response and is convenient to control.

Preferably, the lateral auxiliary propulsion mechanisms are installed on the left side wall and the right side wall of the head of the ship body and comprise lifting piston cylinders, lifting seats, guide plates and adjusting piston cylinders, the lifting seats can be installed on the side walls of the ship body in a lifting mode, telescopic rods of the lifting piston cylinders are connected with the lifting seats, the adjusting piston cylinders are hinged to the lifting seats, one sides of the guide plates are hinged to the lifting seats, the other sides of the guide plates are hinged to the telescopic rods of the adjusting piston cylinders, and the guide plates are arranged in an inclined.

When the ship body needs to be corrected rightwards on a left side, the lateral auxiliary propulsion mechanism on the left side of the ship body works, the lifting piston cylinder pushes the lifting seat to move downwards, the guide plate is arranged in water, the guide plate arranged in an inclined mode blocks water flow, the ship body moves rightwards, the adjusting piston cylinder is started to drive the guide plate to deflect, the inclination angle of the guide plate is adjusted, accordingly the blocking force of the guide plate on the water flow is changed, and after the ship body is corrected in place, the lifting piston cylinder drives the lifting seat to move upwards to return. Similarly, when the ship body needs to be corrected leftwards when the ship body deviates rightwards, the lateral auxiliary propulsion mechanism on the right side of the ship body works to enable the ship body to move leftwards in place. The lateral auxiliary propulsion mechanism and the lateral propeller act together, so that the speed of deviation correction is accelerated, and the deviation correction effect is improved.

Preferably, the lateral auxiliary propulsion mechanisms are arranged on the left side wall and the right side wall of the tail of the ship body, and a guide plate arranged on the lateral auxiliary propulsion mechanism at the tail of the ship body is obliquely arranged from back to front. The tail of the ship body is also provided with a lateral auxiliary propulsion mechanism, so that the ship body can be corrected when retreating.

Preferably, the side wall of the ship body is provided with a lifting track corresponding to the lateral auxiliary propulsion mechanism, and the lifting seat is slidably mounted on the lifting track. The lifting seat can move on the lifting track in a lifting way, and the lifting process is stable and reliable.

Preferably, a plurality of flow blocking fins are hinged to the outer surface of the guide plate and attached to the guide plate, a support rod is mounted on the lifting seat close to the position hinged to the guide plate, an upper guide wheel and a lower guide wheel are mounted at the upper end and the lower end of the support respectively, a transition guide wheel is mounted on the lifting seat and close to the connecting side of the guide plate and the lifting piston cylinder, the flow blocking fins are hinged to the guide plate close to the ends of the support rods, a pull rope is connected to the other end of each flow blocking fin, the pull rope sequentially bypasses the upper guide wheel, the lower guide wheel and the transition guide wheel and then is connected to the connecting side of the guide.

In the process that the adjusting piston cylinder pushes the guide plate to rotate outwards, the pull rope and the guide plate connecting end are pulled outwards, so that one end of the flow blocking fin is pulled away from the guide plate, the inclination angle of the flow blocking fin is increased, and the deviation rectifying effect is improved. When the adjusting piston cylinder pushes the guide plate to increase the inclination angle, the flow stopping fin is pulled through the pull rope, so that one end of the flow stopping fin is separated from the guide plate, the inclination angle of the flow stopping fin is further increased, and the correction effect is favorably improved. The setting of elastic buffer section makes the stay cord have certain elongation, avoids appearing taut dead phenomenon of card.

Preferably, a reset torsion spring is arranged between the flow blocking fin and the guide plate. The reset torsion spring is convenient for the return of the flow blocking fin.

Compared with the prior art, the invention has the beneficial effects that: (1) the flexible liquefied natural gas carrier is convenient to sail and berth; (2) when the ship body deflects to correct, the correction speed is high, and the correction effect is good.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is an enlarged partial schematic view of FIG. 1 of the present invention;

FIG. 4 is an enlarged partial schematic view of FIG. 2 of the present invention;

in the figure: 1. the device comprises a ship body, 2, a liquefied natural gas storage tank, 3, a main propeller, 4, a lateral propeller, 5, a loading and unloading station, 6, a hose tower crane, 7, a volatile gas compression chamber, 8, a lateral auxiliary propulsion mechanism, 9, a lifting piston cylinder, 10, a lifting seat, 11, a guide plate, 12, an adjusting piston cylinder, 14, a sliding column, 15, a flow blocking fin, 16, a support rod, 17, an upper guide wheel, 18, a lower guide wheel, 19, a transition guide wheel, 20, a pull rope, 21 and an elastic buffer section.

Detailed Description

The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings: