CN210310810U - Gasbag release and recovery unit of LNG filling ship - Google Patents

Gasbag release and recovery unit of LNG filling ship Download PDF

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Publication number
CN210310810U
CN210310810U CN201920345576.XU CN201920345576U CN210310810U CN 210310810 U CN210310810 U CN 210310810U CN 201920345576 U CN201920345576 U CN 201920345576U CN 210310810 U CN210310810 U CN 210310810U
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China
Prior art keywords
air bag
rope
pulley
fixed pulley
frame
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Expired - Fee Related
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CN201920345576.XU
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Chinese (zh)
Inventor
王庆丰
刘亚林
孙剑
朱国锋
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Jiangsu University of Science and Technology
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Jiangsu University of Science and Technology
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Abstract

The utility model discloses an air bag releasing and recovering device of an LNG filling ship, which comprises a releasing and recovering assembly, a lifting arm frame, a pulley and a rope, wherein the rope is wound on the pulley; the collision avoidance assembly comprises an air bag, and the air bag is connected with the rope. The utility model has the advantages that: 1. the utility model discloses marine gasbag automatic release and recovery unit in structure has the ability of remote control release and recovery, improves greatly for the mode efficiency of the manual work that the industry uses at present, and especially the security is good under the well high sea state. 2. The utility model discloses marine gasbag automatic release and the method of retrieving in structure have realized retrieving automatic release and recovery unit's the arm-falling rack under the gravity load of gasbag for the first time in the industry, have avoided filling the ship to fall the arm-falling rack and collide the hull of being annotated the ship in the roll.

Description

Gasbag release and recovery unit of LNG filling ship
Technical Field
The utility model relates to an automatic release of gasbag and recovery technical field, concretely relates to gasbag release and recovery unit of LNG filling ship.
Background
A Liquefied Natural Gas (LNG) carrier-filling ship is a special ship for marine LNG transportation and filling LNG for a ship using LNG as fuel. The filling goods mainly comprise liquefied gas which needs to be transported at the ultralow temperature of 163 ℃ below zero, and the liquefied gas is a high-tech, high-difficulty and high-added-value three-high product which has the functions of parallel berthing of ships and filling of LNG fuel under the condition of medium and high sea.
In the process of refueling a large LNG fuel power ship by adopting an LNG transport refueling ship, firstly, an LNG shore station needs to be berthed, and LNG is transferred from an LNG storage tank to the refueling ship. During the LNG transportation process of the filling ship, the related standard requirements of the LNG transportation ship need to be met, and all structures and equipment cannot protrude out of the two-side position. Before approaching the target filled vessel, the LNG filling vessel needs to release 2 to 3 sets of inflatable marine rubber bladders to the sea surface location on one side to be moored and secured to the vessel's bollards by wire ropes. The conventional operation mode is that after the rubber air bag is unlocked manually, the rubber air bag is lifted to the position close to a specified position by adopting a lifting device on an LNG filling ship, a preset steel cable is locked to a mooring bollard manually, and the rubber air bag is released by matching with a crane. The rubber air bag is used for providing an elastic isolated space between the filling ship and the filled ship and avoiding collision between two ships which are moored mutually. After filling, the two ships are separated from each other, the rubber air bag is collected and lifted to a storage position by the crane assisted by people, and the rubber air bag is sealed by a steel cable.
The manual operation mode has extremely low efficiency, the stability of the lifting process is affected by ship shaking, and particularly, workers working on decks face higher safety risks under the condition of medium and high sea. At present, a perfect technical scheme for solving the problems is lacking.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.
The utility model discloses efficiency problem and risk problem that release and retrieve the gasbag in-process and exist around filling in view above-mentioned and/or LNG filling ship have been proposed.
Therefore, one of the purposes of the present invention is to provide an air bag releasing and recovering device for LNG filling ship, which avoids the risk of manual operation.
In order to solve the technical problem, the utility model provides a following technical scheme: the air bag releasing and recovering device of the LNG filling ship comprises a releasing and recovering assembly, a lifting mechanism and a control system, wherein the releasing and recovering assembly comprises a boom reversing frame, a pulley and a rope, and the rope is wound on the pulley; the collision avoidance assembly comprises an air bag, and the air bag is connected with the rope; the fixing assembly comprises a fixing frame, the fixing frame is connected with the bottom of the arm reversing frame, and the arm reversing frame can rotate around a bottom connection part between a horizontal position and a vertical position; the pulleys comprise a movable pulley, a first fixed pulley and a second fixed pulley, the first fixed pulley is fixedly arranged at the top of the arm reversing frame, the second fixed pulley is fixedly arranged at the top of the fixed frame, and the movable pulley is connected with the air bag; and the control assembly comprises a rope clamping device and a winch, the rope clamping device is fixedly arranged at the position, different from the second fixed pulley, of the top of the arm dumping frame, and the winch is fixed on a deck of the filling ship.
As a preferred scheme of LNG filling ship's gasbag release and recovery unit, wherein: the rope rounds the movable pulley, the first fixed pulley and the second fixed pulley in sequence.
As a preferred scheme of LNG filling ship's gasbag release and recovery unit, wherein: the fixing frame comprises a cross rod and an air bag fixing piece, the cross rod is arranged in the middle area of the fixing frame and rotates to the horizontal position to prevent the arm-dumping frame from rotating, a triangular support is arranged on the fixing frame, and the air bag fixing piece is arranged on the triangular support.
As a preferred scheme of LNG filling ship's gasbag release and recovery unit, wherein: the fixed component further comprises 2 cross beams, the number of the fixing frames is 2, and the cross beams are connected among the 2 fixing frames to form a stable H-shaped structure.
As a preferred scheme of LNG filling ship's gasbag release and recovery unit, wherein: the pulley also comprises a third fixed pulley and a fourth fixed pulley, the third fixed pulley is arranged on the rear side of the fixed frame, the fourth fixed pulley is arranged on the cross beam, and the rope sequentially bypasses the third fixed pulley and the fourth fixed pulley and is connected with the winch.
As a preferred scheme of LNG filling ship's gasbag release and recovery unit, wherein: the arm-inverting support comprises a support hook, and the support hook is arranged at the top of the arm-inverting support.
As a preferred scheme of LNG filling ship's gasbag release and recovery unit, wherein: the arm-reversing frame comprises a frame hook, and the frame hook is arranged at the top of the arm-reversing frame and used for hooking the movable pulley.
The utility model has the advantages that: 1. the utility model discloses marine gasbag automatic release and recovery unit in structure has the ability of remote control release and recovery, improves greatly for the mode efficiency of the manual work that the industry uses at present, and especially the security is good under the well high sea state.
2. The utility model discloses marine gasbag automatic release and the method of retrieving in structure have realized retrieving automatic release and recovery unit's the arm-falling rack under the gravity load of gasbag for the first time in the industry, have avoided filling the ship to fall the arm-falling rack and collide the hull of being annotated the ship in the roll.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:
fig. 1 is a schematic view of an overall structure of an airbag releasing and recovering device of an LNG filling ship according to a first embodiment of the present invention;
fig. 2 is a schematic view of the overall structure of the air bag releasing and recovering device of the LNG refueling ship shown in fig. 1 according to the present invention;
fig. 3 is a schematic view of an overall structure of an airbag releasing and recovering device of an LNG filling vessel according to a second embodiment of the present invention;
fig. 4 is a schematic view of an overall structure of an airbag releasing and recovering device of an LNG refueling ship according to a third embodiment of the present invention;
fig. 5 is a schematic connection diagram of a rope clamp of an air bag releasing and recovering device of the LNG refueling ship of fig. 4 according to the present invention;
fig. 6 is a rear view of the present invention without an air bag of the air bag release and recovery device of the LNG refueling vessel of fig. 4;
fig. 7 is a rear view of the air bag release and recovery device of the LNG refueling vessel of fig. 4 in accordance with the present invention;
fig. 8 is a schematic view of an airbag release state of an airbag release and recovery device of an LNG refueling ship according to a third embodiment of the present invention;
fig. 9 is a schematic diagram of the filling state of the airbag releasing and recovering device of the LNG filling ship according to the third embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The utility model discloses the first embodiment provides an gasbag release and recovery unit of LNG filling ship, as shown in fig. 1 ~ 2, retrieve subassembly 100 and keep away and bump the subassembly 200 including the release, release and retrieve subassembly 100 and include the arm-falling support 101, pulley 102 and rope 103, keep away and bump subassembly 200 and include gasbag 201, rope 103 walks around pulley 102. The release and recovery assembly 100 is capable of releasing and recovering the airbag 201, and the airbag 201 is used for preventing the filling ship and the filled ship from colliding with each other and damaging the ship body when the filling ship and the filled ship are close to each other before filling.
Referring to fig. 2, the fixing assembly 300 is further included, the fixing assembly 300 includes a fixing frame 301, the fixing frame 301 is connected to the bottom of the arm support 101, where the fixing frame 301 is in a rotary connection with the bottom of the arm support 101, and the arm support 101 can rotate around the bottom connection between the horizontal position and the vertical position, and the preferred rotary connection is a pin connection or a rotating shaft connection. In this embodiment, the airbag 201 is suspended below the boom 101 through the rope 103, and the boom 101, the pulley 102 and the rope 103 cooperate to release the airbag 201 to the sea level, and the airbag 201 released to the sea level can be recovered to the filling vessel.
The airbag 201 is a rubber airbag for a ship, and is inflatable. The marine air bag consists of a bag body, a bag head and an end iron piece. The bag body is a cylindrical part of the air bag and is a working part of the air bag. According to the magnitude and direction of the main stress of the wall of the air bag when the air bag is used, the overall winding cord layout is designed, the uniform stress of each layer of the cord is achieved, the maximum performance is exerted, and the explosion resistance of the air bag can be improved due to the cord. The head is the end of the air bag and is divided into a hemispherical shape and a conical shape. The end iron piece can be divided into an inflation end and a sealing end, and the inflation end is arranged at the top of the bag head and used for inflating or deflating the air bag; the sealed end is equipped with the pull ring for use in the gasbag handling.
Furthermore, the periphery of the air bag except the large inflatable air bag at the center can be mutually locked through a stainless steel chain, and a series of anti-collision buffer cushions in a rubber tire type are uniformly arranged above the chain to form the marine fender. The marine fender is also called marine ball, and is a marine product with buffering and protecting functions for mooring ships. In recent years, with the continuous development of the ship industry, the fender is widely applied to the fields of large oil tankers, ocean-going transport ships, offshore facilities, ocean platforms, ports and docks, large docks, yachts and the like. The rubber closed container can float on the water surface after being filled with compressed air so as to be used as an important buffer medium for berthing ships and berthing ship and ship heads. Meanwhile, the inflatable rubber leaning ball can absorb the impact energy of ship movement, reduce the recoil force of the ship, has a softer wall-impacting effect, has low area pressure acting on the ship, and greatly improves the safety of ship berthing.
Referring to fig. 3, a second embodiment of the present invention is provided, which is different from the first embodiment: the pulleys 102 comprise a movable pulley 102a, a first fixed pulley 102b and a second fixed pulley 102c, the first fixed pulley 102b is fixedly installed at the top of the arm-reversing frame 101, the second fixed pulley 102c is fixedly installed at the top of the fixed frame 301, and the movable pulley 102a is connected with the air bag 201. The first fixed pulley 102b and the second fixed pulley 102c mainly function to change the direction of the applied force through the rope 103, so that the air bag 201 can be lifted and lowered on the filling vessel. The movable sheave 102a functions to reduce the amount of force for pulling the rope 103, and to save more labor.
The fixing frame 301 is fixed on a deck of the filling ship, the bottom of the fixing frame 301 is rotatably connected with the bottom of the arm-reversing frame 101, and a triangular support is arranged on the fixing frame 301 and used for improving the stability of the fixing frame 301. There are 2 holders 301, and 2 holders 301 are identical. The main body of the fixing frame 301 has three side surfaces, namely a left side surface, a right side surface and a rear side surface, and the arm support 101 can rotate into the main body of the fixing frame 301 and is wrapped in the three side surfaces. Considering that the holder 301 is located on a ship, the material usage of the rear side of the holder 301 can be reduced appropriately, and the rear side does not need to be completely filled to reduce the self-weight of the holder 301.
The fixing frame 301 comprises a cross rod 301a and an air bag fixing piece 301b, the cross rod 301a is arranged in the middle area of the fixing frame 301 and spans the left side face and the right side face of the fixing frame 301, the cross rod 301a is fixedly arranged on the left side face or the right side face, and the cross rod 301a is rotated to the horizontal position to be locked so as to prevent the arm dumping frame 101 from rotating. The air bag fixing piece 301b is arranged on the triangular support of the fixing frame 301, when the air bag 201 is in a retracted state, the air bag 201 can be fixed through the air bag fixing piece 301b, and the situation that the filling ship swings back and forth to impact the fixing frame 301 or the inverted arm frame 101 to be damaged in the sailing process or under the influence of sea storms is prevented.
In this embodiment, the air bag 201 is connected with a movable pulley 102a, and the rope 103 may be fixedly connected to the top of the boom 101, then pass around the movable pulley 102a, then pass through the first fixed pulley 102b and the second fixed pulley 102c in sequence, and extend to the deck of the filling vessel, which is convenient for control.
Referring to fig. 4 to 7, in order to provide a third embodiment of the present invention, the embodiment is different from the second embodiment in that: the control assembly 400 is added, the control assembly 400 comprises a rope clamp 401 and a winch 402, the rope clamp 401 is fixedly installed at the position, different from the second fixed pulley 102c, of the top of the boom dumper 101, and the winch 402 is arranged on a deck beside the fixed frame 301. The arm-reversing frame 101 comprises a frame hook 101a, and the frame hook 101a is arranged at the top of the arm-reversing frame 101 and below the first fixed pulley 102 b. When the air bag 201 is retracted, the movable pulley 102a above the air bag 201 is hung on the frame hook 101a, and the rope 103 is prevented from being stressed for a long time. Referring to fig. 4, at this time, the rope 103 is connected to the movable pulley 102a, the first fixed pulley 102b, the rope clamp 401, and the second fixed pulley 102c in this order, and the other end of the rope 103 is connected to the winch 402.
Winch 402 is a small, lightweight hoisting device, also known as a hoist, that hoists or pulls heavy objects with a drum wound around a wire rope or chain. Winch 402 may be used alone or as a component in machines such as lifting, road building, and mine hoisting. Generally, drawworks 402 has the following features: the device has the advantages of high universality, compact structure, small volume, light weight, large lifting weight and convenient use and transfer, is widely applied to material lifting or horizontal dragging of buildings, hydraulic engineering, forestry, mines, wharfs and the like, and can also be used as supporting equipment of a modern electric control automatic operating line. The main technical indexes of the winch include rated load, supporting load, rope speed, rope containing amount and the like.
In this embodiment, the winch 402 is mainly used as a lifting device, and is a component of an air bag releasing and recovering device of an LNG filling ship, and is used for lifting the air bag 201. As the load rating of the drawworks 402 is less than 10 tons, an electric drawworks is preferred. The electric winch comprises a base, a gear box, a motor, a brake, an electric control box, a frequency converter box, a winding drum, a handheld controller and the like. The controller (or the hand-held controller) is connected with the electric control box by a flexible wire. A brake is a device having a function of decelerating, stopping, or maintaining a stopped state of a moving member (or a moving machine). Is a mechanical part that stops or decelerates moving parts in a machine. Commonly called brake and brake. The brake mainly comprises a braking frame, a braking piece, an operating device and the like. The motor of the electric winch drives the winding drum through the speed reducer, and the brake is arranged between the motor and the input shaft of the speed reducer. In order to meet the requirements of lifting, traction, rotation and other operations, the winch with double-drum and multi-drum devices is also provided. Here preferably a double drum winch.
Referring to fig. 5, the rope clamp 401 is an electromagnetic control type rope clamp through which the rope 103 passes, and the rope 103 can be clamped or loosened by remotely or manually controlling the operating state of the rope clamp 401. In this embodiment, the rope 103 is preferably a wire rope. The steel wire rope is a spiral steel wire bundle formed by twisting steel wires with mechanical property and geometric dimension meeting requirements together according to a certain rule, and consists of the steel wires, a rope core and lubricating grease. The steel wire rope is a spiral rope which is formed by twisting a plurality of layers of steel wires into strands, and then twisting a certain number of strands by taking a rope core as a center. In the process of releasing the retractable air bag 201, the retractable air bag is used for lifting, pulling, tensioning and bearing, and has the advantages of high strength, light dead weight, stable operation, difficult sudden whole breakage and reliable operation. Therefore, the electromagnetic control type rope gripper is a special rope gripper for clamping and loosening the steel wire rope.
Referring to fig. 6, the fixing assembly 300 further includes 2 cross members 302, and the cross members 302 are connected between two fixing frames 301, so that the two fixing frames 301 form a stable "H" shaped structure. The pulley 102 further includes a third fixed pulley 102d and a fourth fixed pulley 102e, the third fixed pulley 102d is disposed at the rear side of the fixed frame 301, the second fixed pulley 102c is disposed below the fixed pulley 102d, and the fourth fixed pulley 102e is disposed on the cross beam 302. At this time, one end of the rope 103 is fixedly connected to the top of the boom 101, then passes through the movable pulley 102a, then passes through the first fixed pulley 102b, the second fixed pulley 102c, the third fixed pulley 102d and the fourth fixed pulley 102e in sequence, and finally is connected to the winch 402.
It should be noted that the third fixed pulley 102d and the fourth fixed pulley 102e function to change the force direction of the rope 103, and therefore, the positions of the third fixed pulley 102d and the fourth fixed pulley 102e are changeable based on the position of the winch 402. In this embodiment, the winch 402 may be disposed between the two fixing frames 301, and the releasing and retrieving groups on both sides of the winch 402 may share one winch 402, so that both sides of the airbag 201 may be released simultaneously, thereby increasing the utilization efficiency of the winch 402 and increasing the space utilization rate of the hull.
Referring to fig. 7, 2 fixing frames 301, 2 groups of releasing and recovering assemblies 100, 2 rope clamps 401, 1 winch 402, 1 cross beam 302 and 1 air bag 201 constitute a complete air bag releasing and recovering device for an LNG refueling ship. The two groups of releasing and recovering assemblies 100 are symmetrical, two ends of the air bag 201 are respectively connected by 2 movable pulleys 102a, the ropes 103 on two sides pass through the movable pulleys 102a and the first fixed pulley 102b in sequence, then pass through the rope clamping device 401, then pass through the second fixed pulley 102c, the third fixed pulley 102d and the fourth fixed pulley 102e, and finally the ropes 103 are wound on the same winch 402. When the winch 402 works, the two ends of the air bag 201 can ascend or descend simultaneously by releasing or recovering the ropes 103, and the air bag 201 is horizontally suspended on the two inverted arm frames 101 all the time.
Further, according to the difference of the size of the filling ship and the length of the ship body, 2 groups or 3 groups or more of LNG filling ship air bag releasing and recovering devices can be arranged on one filling ship, so that the aim of optimally protecting the filling ship and the filled ship is fulfilled. In consideration of the requirement of using different side berthing supplies, LNG filling ship air bag releasing and recovering devices are generally arranged on two sides of a filling ship.
The method for releasing and recovering the air bags of the LNG filling ship is described in detail as follows:
referring to fig. 4, in the initial state of the airbag release and recovery device of the LNG refueling vessel, before the LNG refueling vessel is ready and berthed by a refueling large vessel, the refueling vessel unlocks the airbag fixing member 301b for sealing, unlocks the crossbar (301a), and at this time, the rope clamp 401 is in a clamped state.
Referring to fig. 8, winch 402 is started to rotate forward, winch 402 releases rope 103, and airbag 201 together with boom 101 is tilted to the outboard side by the gravity of airbag 201. Under the braking action of the winch 402, the boom 101 rotates slowly to the water sheet position, and in the process, the movable pulley 102a suspended on the hook 101a of the boom 101 is disengaged from the hook 101 a. When the rope clamping device 401 is loosened, the air bag 201 is slowly released to the sea surface position through the braking of the winch 402 under the action of gravity, the winch 402 is stopped to work, and the rope 103 still has a certain margin.
Referring to fig. 9, the rope gripper 401 grips, the rope 103 is locked with the boom 101, the winch 402 is started to rotate reversely, the boom 101 is pulled to the initial position, the winch 402 stops rotating reversely, and the filling ship and the filled ship approach each other and are filled.
After the filling ship finishes filling, the two ships are separated from each other, the winch 402 is started to rotate forwards or the brake of the winch 402 is released, the arm dumping frame 101 rotates to the horizontal position, and the winch 402 stops working.
The rope gripper 401 is loosened, the winch 402 is started to rotate reversely, the rope 103 and the winch 402 are retracted, the air bag 201 rises until the jib frame 101 is jacked under the action of the rope 103, and at the moment, the pulley frame of the movable pulley 102a on the air bag 201 is jacked against the jib frame 101.
Then, winch 402 is further reversed, movable pulley 102a is pulled back to the vertical position, i.e. the initial position, with boom 101, winch 402 is stopped, movable pulley 102a is again suspended on boom hook 101a, and air bag 201 is returned to the storage position on the filling vessel.
The locking crossbar 301a, which seals the bladder 201, completes one cycle of release and recovery.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (6)

1. The utility model provides a gasbag release and recovery unit of LNG filling ship which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the releasing and recovering assembly (100) comprises a boom reversing frame (101), a pulley (102) and a rope (103), wherein the rope (103) is wound on the pulley (102);
the collision avoidance assembly (200) comprises an air bag (201), and the air bag (201) is connected with the rope (103);
the fixing assembly (300) comprises a fixing frame (301), the fixing frame (301) is connected with the bottom of the arm reversing frame (101), and the arm reversing frame (101) can rotate around the bottom connection position between the horizontal position and the vertical position;
the pulley (102) comprises a movable pulley (102a), a first fixed pulley (102b) and a second fixed pulley (102c), the first fixed pulley (102b) is fixedly installed at the top of the arm reversing frame (101), the second fixed pulley (102c) is fixedly installed at the top of the fixed frame (301), and the movable pulley (102a) is connected with the air bag (201);
the control assembly (400) comprises a rope clamp (401) and a winch (402), the rope clamp (401) is fixedly installed at the position, different from the second fixed pulley (102c), of the top of the boom (101), and the winch (402) is fixed on a deck of a filling ship.
2. The air bag release and recovery device of an LNG filling vessel according to claim 1, wherein: the rope (103) is sequentially wound around a movable pulley (102a), a first fixed pulley (102b) and a second fixed pulley (102 c).
3. The air bag release and recovery device of an LNG filling vessel according to claim 2, characterized in that: the fixed frame (301) comprises a cross rod (301a) and an air bag fixing piece (301b), the cross rod (301a) is arranged in the middle area of the fixed frame (301) and rotates to the horizontal position to prevent the arm dumping frame (101) from rotating,
a triangular support is arranged on the fixing frame (301), and the air bag fixing piece (301b) is arranged on the triangular support.
4. The air bag release and recovery device of an LNG filling vessel according to claim 3, characterized in that: the fixing assembly (300) further comprises 2 cross beams (302), the number of the fixing frames is 2, and the cross beams (302) are connected among the 2 fixing frames (301) to form a stable H-shaped structure.
5. The air bag release and recovery device of an LNG filling vessel according to claim 4, wherein: the pulley (102) further comprises a third fixed pulley (102d) and a fourth fixed pulley (102e), the third fixed pulley (102d) is arranged on the rear side of the fixed frame (301), the fourth fixed pulley (102e) is arranged on the cross beam (302), and the rope (103) sequentially rounds the third fixed pulley (102d) and the fourth fixed pulley (102e) and is then connected with the winch (402).
6. The air bag release and recovery device of an LNG filling vessel according to claim 5, wherein: the arm-inverting support (101) comprises a support hook (101a), and the support hook (101a) is arranged at the top of the arm-inverting support (101).
CN201920345576.XU 2019-03-19 2019-03-19 Gasbag release and recovery unit of LNG filling ship Expired - Fee Related CN210310810U (en)

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CN201920345576.XU CN210310810U (en) 2019-03-19 2019-03-19 Gasbag release and recovery unit of LNG filling ship

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109795643A (en) * 2019-03-19 2019-05-24 江苏科技大学 A kind of the air bag release and recyclable device and method of LNG filling ship

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109795643A (en) * 2019-03-19 2019-05-24 江苏科技大学 A kind of the air bag release and recyclable device and method of LNG filling ship

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