CN116424498A - Economical diversion personnel rope ladder combination device of large LNG ship and use method - Google Patents
Economical diversion personnel rope ladder combination device of large LNG ship and use method Download PDFInfo
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- CN116424498A CN116424498A CN202310467558.XA CN202310467558A CN116424498A CN 116424498 A CN116424498 A CN 116424498A CN 202310467558 A CN202310467558 A CN 202310467558A CN 116424498 A CN116424498 A CN 116424498A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000725 suspension Substances 0.000 claims description 43
- 238000011084 recovery Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 239000004677 Nylon Substances 0.000 claims description 12
- 229920001778 nylon Polymers 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
- B63B27/146—Pilot ladders or similar outboard ladders, e.g. bathing ladders; Pilot lifts
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Abstract
The utility model discloses an economic diversion personnel rope ladder combination device of a large LNG ship, which is fixed on a lifting platform of a side main deck of the large LNG ship and comprises a rope ladder storage part fixed on the lifting platform, wherein the rope ladder storage part is connected with a diversion personnel rope ladder through a rope ladder movable part. The method can be used for releasing and recycling the diversion rope ladder at a plurality of positions, and the fixed winch, eye plates at different positions and hanging ropes are utilized to change the release position of the diversion rope ladder, so that the moving track is not required to be installed, the feeding motor, the speed reducer and other parts are not required, the cost is saved, and the occupied space of a deck is reduced.
Description
Technical Field
The utility model relates to the field of design and construction of large LNG ships, in particular to an economic diversion personnel rope ladder combination device of a large LNG ship and a use method.
Background
The vessel needs to be guided by a diversion crew to navigate when entering and exiting the port, passing through a lock, or passing through some confined water area. The pilot usually uses a pilot rope ladder and a pilot ladder when boarding. The draft or the ship state of the ship are different, and the placement positions of the diversion staff rope ladders are also different. The traditional manual mode that adopts is transferred down and is retrieved the diversion personnel rope ladder, but diversion personnel rope ladder is comparatively heavy, needs 2 ~ 3 people to operate at least, and operating time is long, and is more laborious, removes, packs up, stores comparatively difficultly, and the manual collection is easily twined and is tied a knot, is inconvenient for follow-up use.
In the prior art, chinese patent No. 208907006U proposes a movable rope ladder winch for a water diversion person, which is used for lowering and recovering the rope ladder for the water diversion person. The winch is provided with a rail, and before the rope ladder is released, the winch is moved to a proper position on the rail by a feed motor, so that the purpose of enabling the diversion personnel rope ladder to cover more positions is achieved. However, the winch rail, the feed motor, the speed reducer and other parts are required to be equipped for moving the winch, so that the winch has high construction cost and occupies more deck space, and is not suitable for ships with crowded decks, such as large LNG ships.
In addition, the Chinese patent 202210431402.1 discloses a method for installing a rope ladder for a reverse hanging type water diversion staff, which comprises the following steps: setting a rope ladder fixing component; setting a rope ladder recovery assembly; the diversion staff rope ladder is arranged and is detachably connected with the rope ladder fixing assembly and the rope ladder recycling assembly. However, this application requires the installation of a moving track and does not address the lowering and recovery of the catchment ladder at multiple locations, which is a substantial distinction from the present application.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide an economic diversion personnel rope ladder combination device of a large LNG ship and a use method thereof.
In order to achieve the above object, the present utility model provides the following technical solutions:
the economic water diversion rope ladder combination device of the large LNG ship is fixed on a lifting platform of a side main deck of the large LNG ship and comprises rope ladder storage components fixed on the lifting platform, wherein the rope ladder storage components are connected with a water diversion rope ladder through rope ladder movable components; the rope ladder storage part comprises a rope ladder winch fixed on the lifting platform, a winch drum is arranged in the rope ladder winch, and the diversion personnel ladder is connected with the winch drum and is accommodated in the winch drum; the rope ladder movable part comprises a recovery rope, a suspension rope and an embedded eye plate, one end of the recovery rope is connected with the winch drum through a shackle to enable the rope ladder to be lowered, the other end of the recovery rope is connected with the rope ladder to enable the rope ladder to be recovered, one end of the suspension rope is connected with the fixed eye ring through the shackle, the other end of the suspension rope is connected with the rope ladder through the shackle, and the rope ladder is connected with the embedded eye plate through a nylon rope.
In a further preferred embodiment, a plurality of said fixing eyes are fixed to the side decks, and said suspension cables are connected to said fixing eyes.
In a further preferred embodiment, the embedded eye plate is disposed at the lower part of the side-segmented outer plate, and is used for limiting lateral shake of the pilot rope ladder.
Further preferable technical scheme, rope ladder winch is power equipment, be equipped with the axis of rotation in the winch drum, diversion personnel rope ladder uses the axis of rotation is the center and is put down and retrieve.
According to a further preferred technical scheme, the lifting platform is fixed on the side main deck, the height of the lifting platform is 2500cm, and a channel of the side main deck is arranged below the lifting platform and can be used for passing people.
Further preferable technical scheme, the below of rising platform is equipped with square pipe support, square pipe support bottom mounting is in the both sides of broadside main deck, the upper end of square pipe support is connected with the decorative pattern steel sheet that is used for installing the rising platform surface of rope ladder winch.
Further preferable technical scheme, the outside of rising platform is equipped with rope ladder guide frame, be equipped with around the rising platform and protect the railing, the inboard of rising platform is equipped with from the broadside main deck to the vertical ladder of rising platform.
Further preferable technical scheme, a method for using the economic diversion personnel rope ladder combination device of the large LNG ship is characterized by comprising the following steps:
s1, storing a diversion rope ladder on a rope ladder winch, wherein the rope ladder winch is fixed on a lifting platform of a main deck on the side of an LNG ship, before the diversion rope ladder is released, selecting a suspension rope with proper length according to different draft depths of a ship under full load or no load, and connecting the suspension rope with a fixed eye ring and the diversion rope ladder when the diversion rope ladder shackle is lowered to the main deck;
s2, in the process of releasing the diversion personnel rope ladder, firstly, the recovery rope is in a tight state, and the suspension rope is in a loose state; as the winding drum of the rope ladder winch rotates, the rope ladder for the water diversion person continues to be put down, the suspension rope gradually tends to be tight, and the recovery rope tends to be loose;
s3, under the action of lateral component force of the suspension rope, the diversion rope ladder generates transverse offset so as to enable the diversion rope ladder to transversely move to a using position;
s4, when the load of the rope ladder with the water diversion agent is completely transferred to the suspension rope, the rope ladder with the water diversion agent is fixed on the embedded eye plate by using the nylon rope, so that the rope ladder with the water diversion agent is limited to transversely shake;
s5, when the use of the diversion personnel rope ladder is finished, loosening the nylon ropes of the embedded eye plates, recovering the rope ladder winch, and when the rope ladder shackle is lifted back to the side main deck, releasing the suspension rope, and continuously recovering the rope ladder until the rope ladder is stored in the rope ladder winch.
The economic diversion personnel rope ladder combination device and the use method of the large LNG ship have the following beneficial effects in the practice of ship construction:
(1) According to the economic diversion personnel rope ladder combination device and the use method of the large LNG ship, the diversion personnel rope ladder can be lowered and recycled at a plurality of positions, the diversion personnel soft body at different positions is pulled and suspended by the fixed winch, the moving track is not required to be installed, the feeding motor, the speed reducer and other parts are omitted, the cost is saved, and meanwhile, the occupied space of a deck is reduced.
(2) According to the economic diversion rope ladder combination device and the application method of the large LNG ship, the diversion rope ladder can achieve the purpose of transverse deviation through traction of the suspension rope and the recovery rope.
(3) The economic diversion personnel rope ladder combination device of the large LNG ship is provided with a plurality of fixed eye rings for fixing the suspension ropes and the lengths of the suspension ropes, so that the device is convenient to flexibly adjust in practical application according to the field situation.
(4) The economic diversion personnel rope ladder combination device of the large LNG ship is simple in structure, convenient to adjust, safe and reliable in rope ladder connection and retraction, saves deck space, relieves the condition of crowded part of ship decks, and reduces construction cost.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of an economical catchment rope ladder assembly for a large LNG ship according to the present utility model.
Fig. 2 is a schematic view of a moving water diversion ladder of the economic water diversion ladder assembly device of a large LNG ship of the present utility model.
FIG. 3 is a schematic diagram of the different positions of the economic type diversion ladder assembly and the use method of the large LNG ship.
Fig. 4 is a schematic view of an economical catchment rope ladder assembly device for a large LNG ship in cooperation with a catchment rope ladder of the present utility model.
The reference numerals in the figures are:
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The deck space of the large LNG ship is limited, the draft or the ship state of the ship are different, the placement positions of the diversion ladder are different, and the purpose that the diversion ladder can cover different positions is achieved in the limited space is achieved.
As shown in fig. 1-2, an economical type diversion ladder assembly device of a large LNG ship is fixed on a lifting platform of a side main deck of the large LNG ship, and comprises a ladder storage part fixed on the lifting platform, wherein the ladder storage part is connected with a diversion ladder through a ladder movable part; the rope ladder storage part comprises a rope ladder winch 1 fixed on a lifting platform, a winch drum is arranged in the rope ladder winch 1, a diversion personnel ladder 6 is connected with the winch drum and is stored in the winch drum, the lifting platform 2 is supported by square tubes, the surface of the platform of the lifting platform 2 is provided with a steel plate supported by I-steel and is used for installing the diversion personnel rope ladder winch, the outer side of the lifting platform 2 is provided with a rope ladder guide frame, a protection railing is arranged around the lifting platform 2, a ladder from a deck to the platform is arranged on the inner side of the lifting platform 2, the lifting platform 2 is slightly larger than the winch to reserve an operation space, the platform height 2 is 2500cm to ensure that the passing clearance of 2200cm or more is provided below.
The rope ladder movable part comprises a recovery rope 3, a suspension rope 4 and an embedded eye plate 7, one end of the recovery rope 3 is connected with the winch drum through a shackle to lower the water diversion rope ladder 6, the other end of the recovery rope 3 is connected with the water diversion rope ladder 6 through the shackle to recover the water diversion rope ladder 6, one end of the suspension rope 4 is connected with the fixed eye ring 5 through the shackle, the other end of the suspension rope 4 is connected with the water diversion rope ladder 6 through the shackle, and the water diversion rope ladder 6 is connected with the embedded eye plate 7 through a nylon rope.
The utility model utilizes gravity to generate component force along the direction of the rope to transversely shift the diversion ladder, solves the problem of lowering and recovering the diversion ladder at a plurality of positions, and meets the requirements of safe boarding when the diversion ladder is in different drafts and different states.
When gravity acts on each part of the recovery cable 3 and the suspension cable 3, the recovery cable 3 or the suspension cable 4 generates a force concentration effect like a fulcrum, thereby forming a tight state, and meanwhile, as the recovery cable 3 and the suspension cable 4 have elasticity, the gravity can extend from a high point to a low point, and the component force generated by the gravity along the direction of the rope increases the strength and the stability of the recovery cable 3 and the suspension cable 4.
The two ends of the recovery rope 3 and the suspension rope 4 are provided with lantern rings and shackles, and the lantern rings and shackles are connected with other parts through shackles. The rope ladder winch 1 is fixed on the lifting platform 2, the winch drum is connected with the recovery rope 3 through a shackle, the recovery rope 3 is connected with the diversion personnel rope ladder 6 through the shackle, and the diversion personnel rope ladder 6 is lowered and recovered. The suspension rope 4 is stored on the deck at ordinary times, one end is connected to the fixed eye 5 through the shackle when in use, and the other end is connected with the diversion personnel rope ladder 6 through the shackle. The diversion personnel rope ladder 6 is connected with the embedded eye plate 7 through nylon ropes. The lifting platform 2 is fixed on the side deck below which personnel can pass.
The embedded eye plate 7 is arranged at the lower part of the side outer plate, and when the diversion ladder 6 is lowered to a set position, the diversion ladder is fixed on the embedded eye plate 7 by nylon ropes, so that the lateral shaking of the diversion ladder 6 is limited.
Before the pilot rope ladder 6 is released, the rope ladder hanging rope 4 with proper length is selected according to the actual draft condition, when the pilot rope ladder 6 is released to the main deck, the hanging rope 4 is connected with the fixed eye ring 5 and the pilot rope ladder 6, and in the releasing process of the pilot rope ladder 6, the recovery rope 3 is in a tight state at first, and the hanging rope 4 is in a loose state; as the drum of the rope ladder winch 1 rotates, the rope ladder 6 continues to be lowered, the suspension rope 4 gradually tends to be tight, and the recovery rope 3 tends to be loose. Under the action of lateral component force of the suspension rope 4, the diversion rope ladder 6 generates transverse offset, so that the effect that the diversion rope ladder 6 transversely moves to a use position is realized. When the load of the diversion personnel rope ladder 6 is completely transferred to the suspension rope 4, the diversion personnel rope ladder is fixed on the embedded eye plate 7 by using a nylon rope, so that the diversion personnel rope ladder is limited to transversely shake, and the boarding safety is improved.
The application method of the economic diversion personnel rope ladder combination device for the large LNG ship comprises the following steps of:
s1, a diversion rope ladder 6 is stored on a rope ladder winch 1, the rope ladder winch is fixed on a lifting platform 2 of a main deck on the side of an LNG ship, before the diversion rope ladder 6 is released, the length of a hanging rope is selected according to different draft of a ship under full load or no load, the draft of the ship or the ship state are different, the placement position of the diversion rope ladder is also different, the hanging rope 4 with the proper length is required to be selected, and when the diversion rope ladder 6 is released to the main deck on the side of the ship, the hanging rope 4 is connected with a fixed eye ring 5 and the diversion rope 6;
s2, in the process of releasing the diversion personnel rope ladder 6, firstly, the recovery rope 3 is in a tight state, and the suspension rope 4 is in a loose state; as the winding drum of the rope ladder winch 1 rotates, the diversion personnel rope ladder 6 continues to be lowered, the suspension rope 4 gradually tends to be tight, and the recovery rope 3 tends to be loose;
s3, under the action of lateral component force of the suspension rope 4, the diversion rope ladder 6 generates transverse offset so as to enable the diversion rope ladder 6 to transversely move to the using position;
s4, when the load of the rope ladder 6 with the water diversion agent is completely transferred to the suspension rope 4, the rope ladder 6 with the water diversion agent is fixed on the embedded eye plate 7 by using a nylon rope, so that the rope ladder 6 with the water diversion agent is limited to shake transversely;
s5, when the use of the diversion personnel rope ladder 6 is finished, the nylon ropes of the embedded eye plates 7 are loosened, the rope ladder winch 1 is recovered, and when the rope ladder shackle is lifted back to the side main deck, the hanging rope 3 is disconnected, and the rope ladder 6 is continuously recovered until the rope ladder winch 1 is stored.
As shown in fig. 4, when the distance from the sea level to the boarding/disembarking position is not more than 9m, the diversion ladder can be used alone, the length of the diversion ladder can reach the water surface from the boarding/disembarking position, and all loading conditions and worst ship pitching and adverse transverse tilting of 15 degrees are fully considered; when the distance from the sea level to the boarding/disembarking position exceeds 9m, the gangway ladder of the diversion ladder and the diversion rope ladder can be matched together to use the boarding/disembarking device as the diversion person, at the moment, the gangway ladder of the diversion ladder needs to be biased towards the stern and is arranged in the half-ship-length range in parallel along the ship body as far as possible and avoids the drain hole, the maximum using horizontal angle of the gangway ladder of the diversion ladder is not more than 45, and the lower platform of the gangway ladder of the diversion ladder is at least 5m, but not more than 9m away from the sea level.
The utility model relates to an economic diversion rope ladder combination device of a large LNG ship and a use method thereof, wherein the diversion rope ladder achieves the purpose of transverse deflection by utilizing traction of a suspension rope and a recovery rope. In addition, the utility model is provided with a plurality of eye plates for fixing the suspension ropes and the lengths of the suspension ropes, so that the utility model is convenient for flexible adjustment according to the field situation in practical application. Compared with the mode of changing the release position of the pilot rope ladder by utilizing the movable winch, the utility model does not need to install moving rails, parts such as a feed motor, a speed reducer and the like, saves cost and reduces the occupied space of a deck. The crowded condition of the deck of the large LNG ship is relieved.
The above is only one implementation of the present utility model patent, and other similar method substitutions and structural substitutions are also possible based on the same idea, and are not limited to the steps and structural components already described. In summary, the scope of the utility model also includes other variations and alternatives that will be apparent to those skilled in the art.
Claims (8)
1. An economic diversion rope ladder combination device of a large LNG ship, which is fixed on a lifting platform (2) of a main deck on the side of the large LNG ship, and is characterized by comprising a rope ladder storage part fixed on the lifting platform (2), wherein the rope ladder storage part is connected with a diversion rope ladder (6) through a rope ladder movable part;
the rope ladder storage part comprises a rope ladder winch (1) fixed on a lifting platform (2), a winch drum is arranged in the rope ladder winch (1), and the diversion personnel ladder (6) is connected with the winch drum and is accommodated in the winch drum;
the rope ladder movable part comprises a recovery rope (3), a suspension rope (4) and an embedded eye plate (7), one end of the recovery rope (3) is connected with the winch drum through a shackle to enable the rope ladder (6) to be lowered, the other end of the recovery rope (3) is connected with the rope ladder (6) through the shackle to enable the rope ladder (6) to be recovered, one end of the suspension rope (4) is connected with the fixed eye ring (5) through the shackle, the other end of the suspension rope (4) is connected with the rope ladder (6) through the shackle, and the rope ladder (6) is connected with the embedded eye plate (7) through a nylon rope.
2. An economical water diversion ladder assembly for a large LNG ship according to claim 1, characterized in that a plurality of said fixed eyes (5) are fixed on the side decks, said fixed eyes (5) being connected with said suspension ropes (4).
3. An economical pilot rope ladder assembly for a large LNG ship according to claim 1, characterized in that said embedded eye plate (7) is provided at the lower part of the outboard plate of the side section, and the embedded eye plate (7) is adapted to restrict the lateral sway of the pilot rope ladder (6).
4. The economic water diversion rope ladder combination device of the large LNG ship according to claim 1, wherein the rope ladder winch (1) is power equipment, a rotating shaft is arranged in the winch drum, and the water diversion rope ladder (6) is lowered and recovered by taking the rotating shaft as the center.
5. The economic water diversion rope ladder assembly device of the large LNG ship according to claim 1, wherein the lifting platform (2) is fixed on a side main deck, and a channel with the height of 2500cm is arranged below the lifting platform (2) and is used for passing people.
6. The economic water diversion rope ladder combination device of the large LNG ship according to claim 1, wherein square pipe supports are arranged below the lifting platform (2), the bottom ends of the square pipe supports are fixed on two sides of a side main deck, and pattern steel plates used for installing the lifting platform surface of the rope ladder winch (1) are connected to the upper ends of the square pipe supports.
7. The economic water diversion rope ladder combination device of a large LNG ship according to claim 1, wherein the outer side of the lifting platform (2) is provided with a rope ladder guide frame, the periphery of the lifting platform (2) is provided with a protection railing, and the inner side of the lifting platform (2) is provided with a straight ladder from a side main deck to the lifting platform (2).
8. The method of using an economical water diversion crew rope ladder assembly device for a large LNG ship according to any of claims 1-7, comprising the steps of:
s1, storing a diversion rope ladder (6) on a rope ladder winch (1), fixing the rope ladder winch on a lifting platform (2) of a main deck on the side of an LNG ship, selecting a suspension rope (4) with proper length according to different draft depths under full load or no load before releasing the diversion rope ladder (6), and connecting and fixing an eye ring (5) with the diversion rope ladder (6) when the diversion rope ladder (6) is knocked down to the main deck;
s2, in the process of releasing the diversion personnel rope ladder (6), firstly, the recovery rope (3) is in a tight state, and the suspension rope (4) is in a loose state; as the winding drum of the rope ladder winch (1) rotates, the diversion personnel rope ladder (6) continues to be lowered, the suspension rope (4) gradually tends to be tight, and the recovery rope (3) tends to be loose;
s3, under the action of lateral component force of the suspension rope (4), the diversion rope ladder (6) generates transverse offset so as to enable the diversion rope ladder (6) to transversely move to the using position;
s4, when the load with the diversion rope ladder (6) is completely transferred to the suspension rope (4), the diversion rope (6) is fixed on the embedded eye plate (7) by using a nylon rope, so that the diversion rope (6) is limited to shake transversely;
s5, when the use of the rope ladder (6) of the water diversion person is finished, the nylon ropes of the embedded eye plates (7) are loosened, the rope ladder winch (1) is recovered, when the rope ladder shackle is lifted back to the side main deck, the hanging rope (3) is detached, and the rope ladder (6) is continuously recovered until being stored in the rope ladder winch (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310467558.XA CN116424498A (en) | 2023-04-27 | 2023-04-27 | Economical diversion personnel rope ladder combination device of large LNG ship and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310467558.XA CN116424498A (en) | 2023-04-27 | 2023-04-27 | Economical diversion personnel rope ladder combination device of large LNG ship and use method |
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| Publication Number | Publication Date |
|---|---|
| CN116424498A true CN116424498A (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310467558.XA Pending CN116424498A (en) | 2023-04-27 | 2023-04-27 | Economical diversion personnel rope ladder combination device of large LNG ship and use method |
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| Country | Link |
|---|---|
| CN (1) | CN116424498A (en) |
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2023
- 2023-04-27 CN CN202310467558.XA patent/CN116424498A/en active Pending
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