A method for equipment entry into a gas equipment room

Abstract

This invention provides a method for installing equipment in a gas equipment room, comprising the following steps: S1: Selecting the crane vessel specifications based on the weight of the second-layer assembly, the weight of the equipment, and the height of the vessel; S2: Lifting the equipment using the crane vessel's auxiliary hook; S3: Lifting the second-layer assembly using the crane vessel's main hook; S4: Lifting the equipment to its installation position on the first-layer assembly; S5: Lifting the second-layer assembly onto the first-layer assembly; S6: Welding the second-layer assembly and the first-layer assembly. This invention provides a method for installing equipment in a gas equipment room, which reduces the impact of equipment delivery time issues on key milestones, and also reduces the strength impact and workload caused by opening temporary process holes.

Description

Technical Field

[0001] This invention belongs to the field of marine equipment installation technology, and specifically relates to a method for installing equipment in a gas equipment room. Background Technology

[0002] In the existing technology, there are a large number of equipment in the gas equipment room of a 110,000-ton dual-fuel crude oil / product oil tanker. Due to the large size of the equipment, it is usually required to be hoisted into the dry dock. If hoisting into the dry dock is not possible, temporary process holes are usually opened to hoist the equipment into the tank.

[0003] Due to the large number of equipment and different equipment suppliers, and the requirement for aerial hoisting, delays in equipment delivery can easily affect the upper-level section hoisting schedule, thereby impacting the ship's launch schedule.

[0004] When the equipment cannot be hoisted into the air, temporary process holes need to be made to access the cabin. Due to the large size of the equipment, making these temporary process holes requires cutting numerous profiles, which can easily lead to panel deformation. Furthermore, the workload for both making and sealing these temporary process holes is enormous. Additionally, controlling the size of the temporary process holes makes accessing the equipment through them quite difficult. Summary of the Invention

[0005] This invention provides a method for installing equipment in a gas equipment room, comprising the following steps:

[0006] S1: Select the crane vessel specifications based on the weight of the second-level main section, the weight of the equipment, and the height of the vessel;

[0007] S2: Lifting equipment for auxiliary hooks on crane vessels;

[0008] S3: The crane ship's main hook lifts the second-level main section;

[0009] S4: Hoist the equipment to the equipment installation position on the first floor main section;

[0010] S5: Hoist the second-layer main section onto the first-layer main section;

[0011] S6: Weld the second layer section and the first layer section.

[0012] Furthermore: In S1, the crane vessel is fixed to one side of the ship, and the crane vessel is a floating crane vessel.

[0013] Furthermore, in S1, the floating crane is secured by four anchors at the four corners.

[0014] Furthermore: In S2, the elevation angle of the steel frame of the crane vessel is adjusted.

[0015] Furthermore: In S3, the main hook of the crane vessel lifts the second-layer section and raises it vertically to a safe distance from the ship's deck.

[0016] Furthermore: In S3, the lower corner of the second layer section is made higher than the top of the LNG tank.

[0017] Furthermore: In step S4, the equipment is installed after being hoisted to the equipment installation position on the first layer of the main section.

[0018] Furthermore: In step S5, the second layer section is hoisted directly above the first layer section, and the vertical main hook is used until the second layer section is hoisted onto the first layer section.

[0019] Furthermore, in S5, the components are fixed by welding multiple mounting plates.

[0020] Furthermore: In S5, at least one side of the connection between the second layer segment and the first layer segment is fixed by welding at least two code plates in the transverse direction, and at least one side of the connection between the second layer segment and the first layer segment is fixed by welding at least two code plates in the longitudinal direction.

[0021] The beneficial effects of this invention are as follows:

[0022] As can be seen from the above solution, the present invention provides a method for installing equipment in a gas equipment room. This method reduces the impact of equipment delivery time issues on schedules, and also reduces the impact on strength and workload caused by opening temporary process holes. Attached Figure Description

[0023] Figure 1 A flowchart illustrating a method for installing equipment in a gas equipment room according to an embodiment of the present invention;

[0024] Figure 2 A schematic diagram illustrating step S2 of a method for equipment entry into a gas equipment room according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram illustrating step S3 of a method for entering a gas equipment room according to an embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram illustrating step S4 of a method for entering a gas equipment room according to an embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram illustrating step S5 of a method for entering a gas equipment room according to an embodiment of the present invention.

[0028] Figure 6 A schematic diagram showing a floating crane vessel with four anchors at its four corners, according to an embodiment of the present invention;

[0029] Figure 7 This diagram illustrates the welding structure of the second layer segment and the first layer segment according to an embodiment of the present invention.

[0030] Figure 8 This is a schematic diagram illustrating the structure of the welding code plate, the second layer segment, and the first layer segment according to an embodiment of the present invention.

[0031] In the diagram, 1 represents the second-layer section; 2 represents the first-layer section; 3 represents the pallet; 4 represents the ship; 5 represents the crane ship; 6 represents the anchor; 7 represents the auxiliary hook; 8 represents the main hook; and 9 represents the equipment. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0033] like Figures 1 to 8 As shown, the present invention provides a method for equipment entry into a gas equipment room, which includes the following steps:

[0034] S1: Select the specifications of the crane vessel 5 based on the weight of the second-level main section 1, the weight of the equipment 9, and the height of the vessel 4.

[0035] S2: Crane vessel with 5 hooks, 7 lifting devices, and 9 other lifting equipment;

[0036] S3: Crane 5 main hook 8 lifts the second layer of the main section 1;

[0037] S4: Hoist the equipment 9 to the installation position of the equipment 9 on the first floor section 2;

[0038] S5: Hoist the second-layer section 1 onto the first-layer section 2;

[0039] S6: Weld the second layer section 1 and the first layer section 2.

[0040] As can be seen from the above solutions, the embodiments of the present invention provide a method for installing equipment in a gas equipment room. This method reduces the impact of delivery time issues on key processes caused by equipment 9, and also reduces the strength impact and workload caused by opening temporary process holes.

[0041] Furthermore, in S1, the crane vessel 5 is fixed to one side of the vessel 4, and the crane vessel 5 is a floating crane vessel.

[0042] like Figure 6 As shown, the floating crane is secured by four anchors at the four corners.

[0043] Furthermore: In S2, the elevation angle of the steel frame of the crane ship 5 is adjusted.

[0044] Furthermore: In S3, the main hook 8 of the crane vessel 5 lifts the second-layer section 1 and raises it vertically to a safe distance from the deck surface of the vessel 4.

[0045] Furthermore: In S3, the lower corner of the second layer section 1 is made higher than the top of the LNG tank.

[0046] Furthermore: In step S4, the device 9 is hoisted to the device 9 installation position on the first layer section 2 and then the device 9 is installed.

[0047] Furthermore: In S5, the second layer section 1 is hoisted directly above the first layer section 2, and the vertical main hook 8 is used until the second layer section 1 is hoisted onto the first layer section 2.

[0048] Furthermore, in S5, multiple code plates 3 are welded and fixed.

[0049] Furthermore: In S5, at least one side of the connection between the second layer segment 1 and the first layer segment 2 is welded and fixed in the transverse direction by at least two code plates 3, and at least one side of the connection between the second layer segment 1 and the first layer segment 2 is welded and fixed in the longitudinal direction by at least two code plates 3.

[0050] like Figures 1 to 8 As shown, the present invention provides a method for equipment entry into a gas equipment room, which will be explained below with a specific embodiment:

[0051] The specifications of the crane vessel 5 are selected by calculating the weight of the second-level main section 1, the weight of the equipment 9 that needs to be placed in the cabin, and the height of the vessel 4.

[0052] Use a suitable crane vessel 5, and before operation, set up the crane vessel 5 according to the following... Figure 6 The crane vessel 5 is fixed to one side of the vessel 4. The crane vessel 5 is a floating crane vessel. The floating crane vessel is secured by four anchors 6 at the four corners.

[0053] By adjusting the elevation angle of the steel frame of the crane vessel 5, the equipment 9 is first lifted using the auxiliary hook 7 of the crane vessel 5, and then the second-layer section 1 is lifted using the main hook 8 of the crane vessel 5, and vertically raised to maintain a safe distance from the deck surface of the ship 4. The lower corner of the second-layer section 1 is then higher than the top of the LNG tank. Using the anchor winch of the crane vessel 5, the position of the crane vessel 5 is adjusted, and the equipment 9 is lifted to its installation position on the first-layer section 2 before installation.

[0054] After the equipment 9 in the gas equipment room is installed, the second-layer section 1 is hoisted directly above the first-layer section 2, and the vertical main hook 8 is used to hoist the second-layer section 1 onto the first-layer section 2.

[0055] Weld the seams of the second-level main section 1 and the first-level main section 2 of the gas equipment room.

[0056] Before vessel 4 leaves the dry dock, the second-level main section 1 and the first-level main section 2 of the gas equipment room are welded together. They are then secured by welding multiple mounting plates 3.

[0057] This invention provides a method for installing equipment in a gas equipment room, which allows for the installation of equipment 9 in the gas equipment room during the dock phase, thereby improving construction efficiency and achieving the goal of reducing costs and increasing efficiency.

[0058] This invention discloses a method for installing equipment in a gas equipment room, primarily addressing the issue that equipment 9 in the gas equipment room of a 110,000-ton dual-fuel crude oil / refined oil tanker is delayed in arrival and cannot be hoisted during the dry dock phase, requiring it to be installed in the hold at the dock. By utilizing a crane vessel 5 to hoist equipment 9 into the hold at the dock, the impact of the equipment 9's arrival time is reduced, while also minimizing the strength impact and workload caused by opening temporary process holes.

[0059] To reduce the impact of equipment 9's arrival time on key milestones, reduce the workload of opening temporary process holes for equipment 9 in the hold, reduce construction difficulty, improve construction efficiency, and shorten the dock cycle.

[0060] This avoids the workload of opening temporary process holes, reduces the difficulty of accessing equipment 9 through temporary process holes, improves the quality and efficiency of employee work, and provides a basis for the access of equipment 9 to the gas equipment room during the dock phase of subsequent new ships.

[0061] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for installing equipment in a gas equipment room, characterized in that: Includes the following steps: S1: Select the crane vessel specifications based on the weight of the second-level main section, the weight of the equipment, and the height of the vessel; S2: Lifting equipment for auxiliary hooks on crane vessels; S3: The crane ship's main hook lifts the second-level main section; S4: Hoist the equipment to the equipment installation position on the first floor main section; S5: Hoist the second-layer main section onto the first-layer main section; S6: Weld the second layer section and the first layer section; In S1, the crane vessel is fixed to one side of the ship, and the crane vessel is a floating crane vessel. In S1, the floating crane is fixed by four anchors at the four corners; In step S2, the elevation angle of the steel frame of the crane ship is adjusted; In S3, the main hook of the crane ship lifts the second-layer section and raises it vertically to a safe distance from the ship's deck. In S3, the lower corner of the second layer section is made higher than the top of the LNG tank; In step S4, the equipment is hoisted to the equipment installation position on the first-layer main section and then installed. In step S5, the second layer section is hoisted directly above the first layer section, and the vertical main hook is used until the second layer section is hoisted onto the first layer section; In S5, multiple code plates are welded and fixed.

2. The method for equipment entry into the gas equipment room according to claim 1, characterized in that: In S5, at least one side of the connection between the second layer section and the first layer section is fixed by welding at least two code plates in the transverse direction, and at least one side of the connection between the second layer section and the first layer section is fixed by welding at least two code plates in the longitudinal direction.

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