A method for lifting a ship equipment double-hung row into a cabin

Abstract

The present application relates to a kind of ship equipment double-hung row hoisting into cabin method, including being connected to the both ends of first hanger row by wire rope at the both ends of hanger hook;Crane is connected to first hanger row, and three groups of shackles are connected at the hanger ring position in the middle of first hanger row;Crane hoisting is to second hanger row position, and second hanger row is connected by shackle;Crane hoisting is above equipment, and second hanger row is connected with equipment;Crane hoists equipment;After equipment is stable, continue to hoist, until equipment is higher than ship deck surface, crane moves equipment to above ship process hole;Adjust the position of equipment front and rear left and right, and equipment is lowered into cabin from process hole;Check cabin, and equipment is positioned after being moved to installation position, then release hook, and equipment hoisting is completed.The present application relates to a kind of ship equipment double-hung row hoisting into cabin method, solves the problem that process hole is limited, can effectively unload hoisting and hoisting process rotation force, improves the stability and safety of hoisting.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of shipbuilding, in particular to a ship equipment double-hoisting row hoisting and cabin entering method. BACKGROUND

[0002] In the shipbuilding process, due to factors such as equipment entering period construction period, large equipment of the ship in the process of construction needs to enter the cabin after the end of the total assembly of the section, which requires the opening of a process hole. Opening a process hole may cause deformation of the ship structure, the larger the area of the process hole, the higher the coefficient of deformation of the ship structure. In order to open a process hole with the smallest area in the relevant area, in the engine room area, in order to meet the continuous assembly requirements and ensure the safe hoisting of the upper section, only the main process hole is opened in the middle of the ship, and the engine room area is provided with a local steel wire rope position process hole at the side. When hoisting the equipment, the equipment is first hoisted from the middle of the ship, and then translated to the side of the equipment. In the shipbuilding process, the equipment entering the cabin at other positions is similar to this, and the process hole at the side position needs to be opened by this method, which requires the opening of the steel wire rope.

[0003] In the process of hoisting the ship equipment, the conventional single-hoisting row hoisting method is easy to cause the rotation of the equipment and the steel wire rope during hoisting, and there is a risk of rotation of the steel wire rope during hoisting, which may cause safety hazards.

[0004] The prior art (CN115385221A) discloses a whole hoisting and cabin entering method for MARK III type liquid cargo tank, which comprises the following steps: splicing a plurality of layer structures and a plurality of column structures of the scaffold to form a whole, so as to form a scaffold splicing structure; determining the hoisting point position of the whole hoisting according to the scaffold splicing structure; manufacturing a hoisting row tool according to the hoisting point position of the scaffold splicing structure, and the hoisting row tool is provided with hoisting connection points corresponding to the hoisting point positions; connecting the hoisting point positions on the scaffold splicing structure and the hoisting connection points on the hoisting row tool, so that the hoisting connection points correspond to the hoisting point positions and are on the same vertical line; connecting the hoisting row tool to the hoisting equipment for hoisting, and hoisting the scaffold splicing structure connected to the hoisting row tool into the cargo tank. The present application can quickly realize the hoisting and assembly of the special scaffold, and can ensure the assembly accuracy and integrity of the special scaffold, thereby greatly improving the construction efficiency of the ship. However, it is used for hoisting the scaffold, and still adopts the single-hoisting row hoisting method, which cannot solve the problem of rotation of the steel wire rope during hoisting. SUMMARY

[0005] In order to solve the technical problems existing in the prior art, the present application provides a ship equipment double-hoisting row hoisting and cabin entering method, which solves the problem of limited process hole, can effectively eliminate the rotating force during hoisting and assembly, and improves the stability and safety of hoisting.

[0006] To achieve the above object, the technical solution of the present application is as follows:

[0007] A method for lifting a ship equipment by double-hanging rows, comprising the following steps:

[0008] Step one, connecting a steel wire rope to each end of the hook of the crane, and then lifting the two steel wire ropes to the two ends of the first hanging row through the shackles;

[0009] Step two, continuing to lift the crane after connecting it to the first hanging row, and connecting three groups of shackles at the position of the lifting ring in the middle of the first hanging row during the lifting process;

[0010] Step three, continuing to lift the crane to the position of the second hanging row, and connecting the second hanging row through the shackles;

[0011] Step four, lifting the crane to the equipment, and connecting the four lifting rings of the second hanging row and the lifting ring on the equipment through the shackles and the binding belt;

[0012] Step five, lifting the equipment through the crane;

[0013] Step six, continuing to lift the equipment after it is stable, and moving the equipment to above the process hole of the ship through the crane when the equipment is higher than the deck of the ship under construction;

[0014] Step seven, lowering the equipment after it reaches above the process hole, adjusting the position of the equipment in front, back, left and right, and then lowering the equipment from the process hole in the middle of the deck to the cabin;

[0015] Step eight, checking the cabin when the equipment reaches the designated position in the cabin, moving the equipment to the installation position for positioning, and then releasing the hook, and the equipment lifting is completed.

[0016] As a preferred technical solution, in step two, three groups of shackles are connected at the position of the lifting ring in the middle of the first hanging row when the lifting height of the crane is 25-30 cm.

[0017] As a preferred technical solution, in step five, the binding belt is tightened when the crane lifts the equipment, and whether the equipment is affected by the binding belt is observed during the tightening process; if there is an impact, the lifting is immediately stopped and the steel wire rope is loosened; if there is no impact, the lifting is continued, and the lifting is stopped when the height is 10-15 cm away from the ground, and the observation is continued to ensure safety before lifting again.

[0018] As a preferred technical solution, in step six, the whole lifting process of the equipment is monitored.

[0019] As a preferred technical solution, in step eight, whether there are accessories in the cabin that affect the transverse movement of the equipment is checked when the equipment reaches the designated position in the cabin; if there is no impact after the inspection is completed, the equipment is transversely moved to the installation position for positioning, and the hook is released after the positioning is completed, and the equipment lifting is completed after the releasing of the hook is completed.

[0020] As a preferred technical solution, in step eight, the method for positioning the device is to align the shock absorber bolt holes of the device with the bolt holes on the base in the cabin.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] (1) The ship equipment double-hoist row hoisting into the cabin method of the present application is simple and convenient to operate, has wide applicability, and is highly reliable.

[0023] (2) The ship equipment double-hoist row hoisting into the cabin method of the present application connects the equipment and the hoist row by two steel wires and concentrates the lifting points to one point, which can unload the force during hoisting and lifting, is beneficial to reducing the rotation of the steel wire during hoisting, improves the stability of hoisting, and can better ensure hoisting safety. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a connection structure diagram of the double-hoist row in the ship equipment double-hoist row hoisting into the cabin method of the present application;

[0025] Figure 2 is an equipment hoisting into the cabin diagram in the ship equipment double-hoist row hoisting into the cabin method of the present application.

[0026] In the figure: 1. First hoist row; 2. Second hoist row; 3. Shackles; 4. Hooks; 5. Steel wire; 6. Equipment; 7. Binding belt; 8. Deck; 9. Process hole. DETAILED DESCRIPTION

[0027] The technical solutions of the present application will be further described below in combination with specific embodiments:

[0028] As shown in Figure 1 , the double-hoist row is a hoist row for hoisting the ship equipment 6, meets the relevant strength requirements, and the double-hoist row connection mode can reduce the opening of the steel wire 5, meeting the hoisting requirements of the ship equipment 6. In the actual construction process, the double-hoist row hoisting of the equipment 6 into the cabin needs to be carried out after the process hole 9 is opened.

[0029] As shown in Figure 2 , a ship equipment 6 double-hoist row hoisting into the cabin method includes the following steps:

[0030] Step one: connect one steel wire 5 to each end of the hook 4 of the crane, and after lifting, the two steel wires 5 are connected to the two ends of the first hoist row 1 through the shackles 3;

[0031] Step two: after the crane is connected to the first hoist row 1, continue to hoist, and when hoisted to a height of 25-30 cm, connect three groups of shackles 3 at the hoisting ring position in the middle of the first hoist row 1;

[0032] Step 3: The crane continues to lift to the position of the second lifting block 2, and connects to the second lifting block 2 through the shackle 3;

[0033] Step 4: Lift the crane above the equipment 6 and connect the four lifting rings of the second lifting block 2 to the lifting rings on the equipment 6 using shackles 3 and straps 7;

[0034] Step 5: Lift the equipment 6 with a crane and slowly tighten the straps 7. During the tightening process, observe whether the equipment 6 is affected by the straps 7. If it is affected, stop lifting immediately and loosen the wire rope 5. If it is not affected, continue lifting. In this embodiment, when the equipment is lifted 10 cm off the ground, stop lifting and continue to observe. Continue to lift the equipment 6 only after ensuring that it is safe and stable.

[0035] Step 6: After the equipment 6 is stable, continue to lift it. When the equipment 6 is higher than the deck 8 of the ship under construction, move the equipment 6 to the top of the ship's process opening 9 using a crane. This process is monitored by the safety officer throughout to ensure that there are no irrelevant personnel in the lifting operation area.

[0036] Step 7: After the equipment 6 reaches above the process hole 9, it is lowered. After adjusting the position of the equipment 6 in all directions, the equipment 6 is lowered into the cabin from the process hole 9 in the middle of the deck 8.

[0037] Step 8: When equipment 6 arrives at the designated position inside the cabin, check if there are any accessories inside the cabin that may affect the lateral movement of equipment 6. If there are no obstacles after the check, move equipment 6 laterally to the installation position and then position it. Specifically, align the bolt holes of the shock absorber of equipment 6 with the bolt holes on the base inside the cabin. After positioning, release the hooks. After releasing the hooks, the hoisting of equipment 6 is completed.

[0038] This embodiment is merely a further explanation of the present invention and is not intended to limit the present invention. Those skilled in the art can make non-inventive modifications to this embodiment as needed after reading this specification, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A method of double sling arrangement of a marine equipment into a hold, characterized in that, The method comprises the following steps: Step one, connect a steel wire rope to each end of the hook of the crane, lift the two steel wire ropes, and connect them to the two ends of the first lifting row through the shackles; Step two, continue to lift after the crane is connected to the first lifting row, connect three groups of shackles at the position of the lifting ring in the middle of the first lifting row during lifting; Step three, continue to lift the crane to the position of the second lifting row, and connect the second lifting row through the shackles; Step four, lift the crane to above the equipment, and connect the four lifting rings of the second lifting row and the lifting rings on the equipment through the shackles and the straps; Step five, lift the equipment through the crane; Step six, continue to lift after the equipment is stable, move the equipment to above the process hole of the ship through the crane when the equipment is higher than the deck of the ship under construction; Step seven, lower the equipment after it reaches above the process hole, adjust the position of the equipment in front, back, left and right, and then lower the equipment from the process hole in the middle of the deck to the cabin; Step eight, check the cabin when the equipment reaches the specified position in the cabin, move the equipment to the installation position, then position it, and finally release the hook, and the equipment hoisting is completed.

2. A method of loading a ship with two rows of equipment, according to claim 1, characterized in that, In the step two, connect three groups of shackles at the position of the lifting ring in the middle of the first lifting row when the lifting height of the crane is 25-30 cm.

3. A method of loading a ship according to claim 1, wherein, In the step five, tighten the strap when lifting the equipment through the crane, observe whether the equipment is affected by the strap during the tightening process, stop lifting and loosen the steel wire rope if there is an impact; if there is no impact, continue to lift, stop lifting when the lifting height is 10-15 cm, continue to observe, and then lift again after ensuring safety.

4. A method of loading a ship according to claim 1, wherein, In the step six, the whole lifting process of the equipment is monitored.

5. A method of loading a ship according to claim 1, wherein, In the step eight, check whether there are accessories in the cabin that affect the transverse movement of the equipment when the equipment reaches the specified position in the cabin, and if there are no impacts after the inspection, move the equipment to the installation position, then position it, release the hook after positioning is completed, and finally complete the equipment hoisting.

6. A method of loading a ship according to claim 1, wherein, In the step eight, the positioning method of the equipment is to align the shock absorber bolt hole of the equipment with the bolt hole on the base in the cabin.

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