阅读说明：本技术 一种应用于lng加注船的旁靠系统及旁靠方法 (Side-leaning system and side-leaning method applied to LNG filling ship ) 是由 李永福 喻义华 季建洲 蔡鹏天 汤源滨 刘宇飞 李里 李娅欣 于 2021-06-25 设计创作，主要内容包括：本发明提供一种一种应用于LNG加注船的旁靠系统及旁靠方法,所述旁靠系统包括旁靠碰垫、固定架、绑扎索、吊车、吊索、限位索、系泊绞车及缆绳,所述固定架设置于加注船的露天甲板上,所述固定架用于放置所述旁靠碰垫并通过绑扎索进行固定,每个固定架上放置一个所述旁靠碰垫,所述旁靠碰垫的两端均设置有限位索及吊索,所述吊车设置于露天甲板上通过所述吊索对所述旁靠碰垫进行吊运,所述加注船的两侧设置有锁紧件,所述加注船的艏部、艉部于甲板上设置有系泊绞车,所述系泊绞车连接缆绳,所述缆绳连接受注船。本发明的结构简洁,可大量节省LNG加注船的作业成本,提高作业效率,进而优化其运营过程中的经济效益。(The invention provides a side leaning system and a side leaning method applied to an LNG filling ship, wherein the side leaning system comprises side leaning collision pads, fixing frames, binding ropes, a crane, a sling, a limiting rope, a mooring winch and a mooring rope, the fixing frames are arranged on an open deck of the filling ship, the fixing frames are used for placing the side leaning collision pads and are fixed through the binding ropes, one side leaning collision pad is placed on each fixing frame, the limiting rope and the sling are arranged at two ends of each side leaning collision pad, the crane is arranged on the open deck and hoists the side leaning collision pads through the sling, locking parts are arranged at two sides of the filling ship, the mooring winch is arranged on the deck at the bow part and the stern part of the filling ship, the mooring winch is connected with the mooring rope, and the mooring rope is connected with the filling ship. The LNG filling ship has a simple structure, the operation cost of the LNG filling ship can be greatly saved, the operation efficiency is improved, and the economic benefit in the operation process is further optimized.)

1. The utility model provides a be applied to other system of leaning on of LNG ship, a serial communication port, including other fender, mount, ligature, crane, hoist cable, spacing cable, mooring winch and hawser of leaning on, the mount sets up on the weather deck of filling ship, the mount is used for placing other fender is fixed through the ligature, places one on every mount other fender, other both ends of leaning on fender all are provided with spacing cable and hoist cable, the crane sets up to pass through on the weather deck the hoist cable is right other fender carries out the handling, the both sides of filling ship are provided with the retaining member, the retaining member is used for the fixed connection hoist cable and the spacing cable, filling ship's bow, stern portion are provided with mooring winch on the deck, mooring winch connects the hawser and receives the filling ship even.

2. The system of claim 1, wherein the mooring winch is provided with a stress detection device at the position of the winch brake pin, and the stress detection device is connected with the IAS system.

3. The system of claim 1, wherein the body of the fender is cylindrical and the ends of the fender are semi-spherical.

4. The system of claim 1, wherein the fixing frame comprises two symmetrically arranged support frames, each support frame comprises a horizontal support column, a plurality of longitudinal support columns and a plurality of inclined struts, the longitudinal support columns are arranged along the length direction of the horizontal support column, the ends of the longitudinal support columns are fixedly connected with the horizontal support column, the inclined struts are fixedly connected with the longitudinal support columns at certain angles, and the ends of the inclined struts are flush with the ends of the longitudinal support columns.

5. The system of claim 1, wherein the filling vessel is provided with horn rollers at a bow portion and a stern portion, the filling vessel is provided with a bollard, and the cable is fixed to the bollard after passing through the horn rollers, a cable guide hole on the filling vessel and the cable guide hole on the filling vessel in sequence.

6. The system of claim 1, wherein the side leaning cushion is correspondingly connected with locking pieces, the three locking pieces are located on the same horizontal line, two of the slings are connected with the middle locking piece, and the limiting cable is respectively connected with the locking pieces at two ends.

7. The system of claim 1, wherein the fender, the suspension cable, and the limiting cable are made of polymer material.

8. A method of side support for LNG filling vessels, using the side support system of any of claims 1-7, comprising the steps of:

firstly, during navigation of a ship, a side cushion is placed on a fixed frame and is locked by a binding rope;

step two, before the ship is filled, removing the binding rope, connecting a sling through a crane, moving the side cushion to the position of the locking part, connecting a limiting rope with the locking part, loosening the sling through the crane, and connecting the sling with the locking part;

step three, after the side leaning cushion is installed, a filling ship mooring system carries out side leaning operation, a mooring winch discharges a mooring rope, and the filling ship is connected with a filled ship through the mooring rope to carry out filling operation;

after the filling operation is finished, removing the mooring rope, separating the sling from the locking piece by the filling ship far away from the filled ship, connecting the sling with a crane, separating the limiting cable from the locking piece, and recovering the side leaning collision pad;

and step five, transporting the side leaning collision pads to the fixed frame by the crane, and binding and locking the side leaning collision pads by the binding ropes.

Technical Field

The invention relates to the technical field of clean energy, in particular to a side-leaning system and a side-leaning method applied to an LNG filling ship.

Background

Along with the formal implementation of IMO sulfur limitation in 2020, the emission limit of oil and gas fuels of ships is more strict, and the application of washing towers in some countries and regions is strictly regulated and controlled. Therefore, ships using LNG as a new clean energy source are favored, and many ships start to order LNG tankers or ships using LNG as a main fuel.

The starting of LNG as fuel in the ship industry is late, the popularization rate of the current shore-based LNG refueling shore station is not high, so that the refueling of an LNG fuel ship during navigation is inconvenient, the LNG fuel ship is usually in a remote area, the refueling from the LNG fuel ship to the LNG shore station requires extra voyage of the ship, and the influence of the limit of a berthing refueling window available for the LNG shore station is serious. The filling ship can flexibly arrange filling time and perform filling operation in a more ideal sea area according to the requirements of the LNG fuel ship, so that the adoption of the LNG filling ship for ship transfer filling is generally favored by the industry as a flexible filling mode. Due to the fact that the LNG fuel storage and lightens the environmental temperature condition required by the operation, and the gasified LNG is flammable and explosive dangerous goods, higher requirements are provided for safety and reliability of two ships in the berthing process during filling operation. How to adopt a relatively economic mode to realize the reliable connection of the LNG filling ship and the LNG fuel ship is an important link in the LNG fuel filling process.

In the traditional ship-to-ship transfer operation, the berthing equipment usually adopts a renting mode, and the side berthing collision pads are towed to the side by means of tugboats for fixing, or the berthing collision pads are arranged on the side of the ship and provided with special lifting frames. The leasing mode has certain advantages in the low-frequency side-leaning operation, but the efficiency is low, the cost is increased and a lot of inconvenience is caused for ships needing the high-frequency side-leaning operation, such as filling ships. The berthing fender is arranged on the side of the board of a part of large ships and is provided with a special hanging bracket. However, the two modes are not suitable for the LNG refueling ship, because the refueling ship needs to perform refueling operation on different LNG refueling ships at high frequency, and the shipboard needs to be provided with a gas collecting platform for receiving and refueling LNG fuel, so that the position of the shipboard is very compact, and a sufficient space is not provided for arranging the shipboard hanging bracket type fixed fender.

Disclosure of Invention

In view of the above-mentioned needs, an object of the present invention is to provide a side-by-side system for LNG ships, which further improves the safety and reliability of LNG refueling by improving and innovating a refueling ship and a refueling ship, i.e., a side-by-side mooring system for an LNG-powered ship. In addition, the invention also provides a side leaning method applied to the LNG ship.

The invention provides a side leaning system applied to an LNG filling ship, which comprises side leaning collision pads, fixing frames, binding ropes, cranes, slings, limiting ropes, mooring winches and mooring ropes, wherein the fixing frames are arranged on a weather deck of the filling ship, the fixing frames are used for placing the side leaning collision pads and fixing the side leaning collision pads through the binding ropes, one side leaning collision pad is placed on each fixing frame, the limiting ropes and the slings are arranged at two ends of each side leaning collision pad, the cranes are arranged on the weather deck and used for hoisting the side leaning collision pads through the slings, the locking members are arranged at two sides of the filling ship and used for fixedly connecting the slings and the limiting ropes, a stern winch is arranged on the deck of the filling ship, the mooring winches are connected with the mooring ropes, and the mooring ropes are connected with the filling ship.

As a preferable technical scheme, a stress detection device is arranged at the position of the winch brake shaft pin of the mooring winch, and the stress detection device is connected with the IAS system.

Preferably, the main body of the side cushion is cylindrical, and both ends of the side cushion are semi-spherical.

As an optimal technical scheme, the mount includes two support frames that the symmetry set up, the support frame includes horizontal support column, a plurality of longitudinal support column, a plurality of bracing, the longitudinal support column is followed the length direction setting of horizontal support column, the tip of longitudinal support column with horizontal support column fixed connection, the bracing be certain angle with longitudinal support column fixed connection, the tip of bracing with the tip of longitudinal support column flushes.

According to the preferable technical scheme, the bow and the stern of the filling ship are provided with horn rollers, the filling ship is provided with a bollard, and the mooring rope is fixed on the bollard after sequentially passing through the horn rollers, a cable guide hole on the filling ship and a cable guide hole on the filling ship.

As preferred technical scheme, the other fender that leans on corresponds and connects the retaining member, three retaining member are located same water flat line, two retaining member in the middle of the hoist cable is connected, the retaining member at both ends is connected respectively to spacing cable.

As a preferred technical scheme, the side cushion, the sling and the limit rope are all made of high polymer materials.

In a second aspect of the present invention, there is provided a method for alongside an LNG tanker, comprising the steps of:

firstly, during navigation of a ship, a side cushion is placed on a fixed frame and is locked by a binding rope;

step two, before the ship is filled, removing the binding rope, connecting a sling through a crane, moving the side cushion to the position of the locking part, connecting a limiting rope with the locking part, loosening the sling through the crane, and connecting the sling with the locking part;

step three, after the side leaning cushion is installed, a filling ship mooring system carries out side leaning operation, a mooring winch discharges a mooring rope, and the filling ship is connected with a filled ship through the mooring rope to carry out filling operation;

after the filling operation is finished, removing the mooring rope, separating the sling from the locking piece by the filling ship far away from the filled ship, connecting the sling with a crane, separating the limiting cable from the locking piece, and recovering the side leaning collision pad;

and step five, transporting the side leaning collision pads to the fixed frame by the crane, and binding and locking the side leaning collision pads by the binding ropes.

As described above, the reclining system and the reclining method according to the present invention have the following advantageous effects:

(1) the storage, hoisting and fastening system of the side cushion is arranged for the filling ship, the storage and working positions of the storage, hoisting and fastening system are covered by the ship hoisting system, a specially designed hoisting tool and a special operation program are adopted, and the side cushion is hoisted, hoisted and recovered by the filling ship deck hoisting system, so that the mooring cost is reduced.

(2) The side cushion is provided with two groups of riggings, the sling is used for hoisting, and the limit rope is used for fastening the cushion on a filling ship after the cushion enters water, so that the mooring safety is ensured.

(3) The LNG filling device is simple in structure and convenient to operate, the operation cost of the LNG filling ship can be greatly saved, the operation efficiency is improved, and the economic benefit in the operation process is further optimized.

Drawings

FIG. 1 is a top view of the present invention reclining system.

FIG. 2 is a schematic view of the arrangement of the side bolster system of the present invention.

FIG. 3 is a schematic view of a lifting structure of a side bolster of the side bolster system of the present invention.

FIG. 4 is a second schematic view of the lifting structure of the side bolster system of the present invention.

FIG. 5 is a schematic of the berthing mooring of the berthing system of the present invention.

The element numbers are as follows: the side-leaning cushion comprises a side-leaning cushion 1, a limiting cable 2, a support frame 3, a crane 4, a sling 5, a locking piece 6, a mooring winch 7, a mooring rope 8, a mooring bollard 9, a cable guide hole 10, a cleat roller 11, a horizontal support column 12, an inclined support 13 and a longitudinal support column 14.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Example 1

The embodiment provides a side by system for LNG filling vessel, including side by fender 1, mount 3, ligature rope, crane 4, hoist cable 5, spacing rope 2, mooring winch 7 and hawser 8, mount 3 sets up on the weather deck of filling vessel, mount 3 is used for placing side by fender 1 and fixes through the ligature rope, places one on every mount 3 side by fender 1, and the main part of side by fender 1 is cylindrical, the both ends of side by fender 1 are the semicircle sphere, mount 3 includes two support frames of symmetry setting, the support frame includes horizontal support column 12, a plurality of vertical support column 14, a plurality of bracing 13, vertical support column 14 sets up along the length direction of horizontal support column 12, the tip of vertical support column 14 with horizontal support column 12 fixed connection, bracing 13 is certain angle and vertical support column 14 fixed connection, the ends of the diagonal braces 13 are flush with the ends of the longitudinal support posts 14.

Both ends of other fender 1 all are provided with spacing rope 2 and hoist cable 5, crane 4 sets up on the weather deck through hoist cable 5 is right other fender 1 carries out the handling, the both sides of tender are provided with retaining member 6, retaining member 6 is used for fixed connection sling 5 reaches spacing rope 2, the bow portion, the stern portion of tender are provided with mooring winch 7 on the deck, mooring winch 7 connects hawser 8, 8 even accept the tender, and other 8 hawsers that use by the mooring all come from tender mooring winch 7. After being fixed, the cable 8 applies pre-tightening force equal to the working pulling force of the mooring winch 7. And a stress detection device is arranged at the position of the winch brake shaft pin of the mooring winch 7, the stress detection device is connected with the IAS system, and the stress detection device monitors the whole process of mooring connection of the filling ship and the injected ship in real time and shares signals.

The front part and the tail part of the filling ship are provided with horn rollers 11, the filling ship is provided with a bollard 9, and the mooring rope 8 is fixed on the bollard 9 after passing through the horn rollers 11, a cable guide hole 10 on the filling ship and the cable guide hole 10 on the filling ship in sequence. The limit cable 2 and the sling 5 of the berthing fender pass through the cable guide hole 10 and are fixed on the ship to be filled by adopting the simple cross-shaped mooring bollard 9, and the positions of the limit cable and the sling can be adjusted by the length of the crane and the rigging, so that extra relative displacement of the two ships caused by draft change in the filling process is compensated. Other by 1 correspondence of fender and connect retaining member 6, three retaining member 6 is located same water flat line, two retaining member 6 in the middle of 5 connections of hoist cable, retaining member 6 at both ends is connected respectively to spacing cable 2.

The side leaning cushion 1, the sling 5 and the limiting rope 2 are all made of high polymer materials. The polymer material has large tension and light weight, and can be operated by a single crew. Limited by the capacity of the crane 4, in order to prevent the overlong rope for fastening from damaging instrument equipment on a deck in the hoisting process and considering the convenience of operation of a crew, the fastening rope adopts a sectional structure.

Example 2

The implementation provides a side-by-side method applied to an LNG filling ship, which comprises the following steps:

step one, when the ship sails, the filling ship mooring equipment is recovered, the side cushion 1 is placed on the fixing frame 3 and is locked through the binding rope, and the fixing frame 3 is simple in structure, so that lower storage and maintenance cost is realized.

And step two, before the vessel is filled, removing the lashing cable, connecting the sling 5 through the crane 4, moving the side leaning cushion 1 to the position of the locking part 6, connecting the limiting cable 2 with the locking part 6, loosening the sling 5 by the crane 4, and connecting the sling 5 with the locking part 6.

And step three, after the side leaning cushion 1 is installed, the filling ship mooring system carries out side leaning operation, the mooring winch 7 discharges the mooring rope 8, and the filling ship is connected with the filled ship through the mooring rope 8 to carry out filling operation. The mooring winch 7 is provided with a stress monitoring device for monitoring the stress of the mooring rope 8 passing through the claw roller 11 in real time.

And step four, after the filling operation is finished, removing the mooring rope 8, separating the sling 5 from the locking part 6 by the filling ship, connecting the sling 5 with the crane 4, separating the limiting rope 2 from the locking part 6, and recovering the side leaning cushion 1.

And step five, the crane 4 transports the side leaning collision pad 1 to the fixed frame 3 and binds and locks the side leaning collision pad with a rope.

In conclusion, the LNG filling device is simple in structure and convenient to operate, the operation cost of the LNG filling ship can be greatly saved, the operation efficiency is improved, and the economic benefit in the operation process is further optimized.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.