Method for pre-installing equipment in block stage of ship construction

Abstract

The invention relates to the technical field of ship construction, in particular to a ship construction block stage equipment pre-installation method. A ship construction block stage equipment pre-installation method comprises the steps that a hoisting structure capable of hoisting equipment is preset on an upper-layer block in advance, a lower-layer block without the equipment is placed in place, then a chain block is controlled to hoist the equipment, and the bottom end of the equipment is kept higher than the bottom end of the upper-layer block; and then the temporary support is used for fixing the position of the equipment, then the upper-layer block with the equipment is integrally hoisted to the position above the lower-layer block, then the temporary support is dismantled, the chain block is controlled to put down the equipment, the equipment is in butt joint with the lower-layer block, and installation is completed. The equipment is not mounted on the lower-layer block in advance, but is firstly carried along with the upper-layer block and is finally mounted, so that the problems that outfitting pieces around the equipment cannot be preassembled and a gantry crane is limited due to the fact that the equipment is preassembled on the lower-layer block in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shipbuilding, in particular to a shipbuilding block stage equipment pre-installation method. BACKGROUND

[0002] For the structure with a platform, the conventional block division mode is to divide it into an upper block and a lower block according to the upper and lower structures, wherein the lower end of the upper block is a large opening, and the upper end of the lower block is provided with a platform. The equipment in the platform is generally divided into the lower block or installed in the lower block in the dock stage, and then the upper and lower blocks are installed together.

[0003] The above installation scheme can facilitate the precision control of the block, but has the following problems: first, the internal outfitting parts need to be ensured not to interfere with the equipment during the loading process of the upper block, so the outfitting parts around the equipment cannot be installed in place; second, the gantry crane of the company has a lifting height limit, and for the block with a high baseline such as a chimney and an upper structure, the loading gap between the upper block and the lower block is often very small, and if the height of the equipment on the platform is higher than the loading gap, the block cannot pass over the equipment during the loading process. SUMMARY

[0004] Therefore, the present application provides a shipbuilding block stage equipment pre-installation method to solve the problem that the pre-installation of the equipment on the lower block causes the outfitting parts around the equipment to be unable to be pre-installed and the limitation of the gantry crane.

[0005] A shipbuilding block stage equipment pre-installation method, which pre-provides a lifting structure capable of lifting the equipment on the upper block, places the lower block without the equipment in place, lifts the upper block, connects the equipment and the upper block by using a chain hoist, controls the chain hoist to lift the equipment and keep the bottom end of the equipment higher than the bottom end of the upper block, fixes the position of the equipment by using a temporary support, lifts the upper block with the equipment to above the lower block and corresponds the positions of the upper block and the lower block, removes the temporary support between the equipment and the upper block, and controls the chain hoist to lower the equipment to make the equipment butt joint with the lower block and complete the installation.

[0006] Further, before setting the lifting structure on the upper block, the relative positions of the upper block and the lower block are determined according to the equipment layout, and then the position of the lifting structure relative to the upper block is determined.

[0007] Further, the lifting structure is a lifting lug provided on the upper block, and a lifting point is provided on the equipment, and the positions of the lifting point and the lifting lug correspond to each other.

[0008] Further, the lifting lug is provided at a strong structure of the upper block.

[0009] Further, the temporary support includes a fixing rod fixed to the lower opening structure of the upper block.

[0010] Further, the fixing rod is provided with at least two.

[0011] Further, the number of the lifting lugs is twice the number of the lifting points, and each lifting point is provided with two lifting lugs, and the lifting lugs are symmetrically arranged relative to the corresponding lifting point.

[0012] The ship building block stage equipment pre-installation method has the advantages that: in the present application, the lifting structure is pre-set on the upper block to facilitate lifting of the equipment, and in the lifting process, the equipment is not fixed on the lower block, but is controlled by the chain hoist to be kept in the upper block, and when the bottom end of the steel equipment is higher than the bottom end of the upper block, the equipment and the lower block will not interfere with each other in the lifting process, which facilitates better lifting; the temporary support is provided to make the equipment and the upper block more stable in the lifting process; since the position of the equipment and the upper block is the final installation position, the equipment can be placed in the corresponding position during the docking process of the upper block and the lower block, and then the temporary support between the equipment and the upper block is removed, and the chain hoist is controlled to lower the equipment, so that the equipment can be installed on the lower block; until the upper block and the lower block are installed together; that is, the equipment is not installed on the lower block in advance, but is transported with the upper block first and then installed, thereby solving the problem that the equipment pre-installed on the lower block in the prior art cannot be pre-installed and is limited by the gantry crane. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 The figure is a schematic diagram of the assembly of the upper block, the lower block and the equipment in the ship in the present application. Figure 2 The figure is a schematic diagram of the structure of the lifting process in the embodiment of the ship building block stage equipment pre-installation method in the present application.

[0015] The meanings of the reference numerals in the figure are as follows: 1, equipment; 2, upper block; 3, lower block; 4, lifting point; 5, lifting lug; 6, chain hoist; 7, temporary support. DETAILED DESCRIPTION

[0016] In order to make the objects, technical solutions and advantages of the present application clearer, the following will describe the present application with specific embodiments shown in the drawings. However, it should be understood that the description is only exemplary but not intended to limit the scope of the present application. Moreover, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0017] The terms used in the present disclosure are merely for the purpose of describing particular embodiments and are not intended to limit the present disclosure. As used in the present disclosure and the appended claims, singular forms "a," "an" and "the" are intended to include plural forms, unless the context clearly indicates otherwises. It will be further understood that the terms "and / or" as used herein refer to and encompass any or all possible combinations of one or more of the associated listed items.

[0018] It should be understood that, although the terms first, second, third, etc. can be employed in this disclosure to describe various information, such information should not be limited to these terms, and should not be understood as indicating or implying that any or all of the information is of a certain rank or importance. These terms are used only to distinguish one type of information from another type of information. For example, without departing from the scope of the present disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information. Depending on the context, the word "if" as used herein can be interpreted as meaning "when" or "in response to determining" as used herein.

[0019] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0020] In the description of the present application, unless otherwise specified and limited, it should be noted that the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be a mechanical connection or an electrical connection, or a communication between two elements, or a direct connection, or an indirect connection through an intermediate medium, and the specific meaning of the above terms can be understood by those skilled in the art according to the specific circumstances.

[0021] In the following description, the suffix such as "module", "part" or "unit" used to represent an element is only for the convenience of description of the present application, and has no specific meaning by itself. Therefore, "module" and "part" can be used interchangeably.

[0022] To better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0023] In Embodiment 1 of the equipment pre-installation method for the shipbuilding section stage of this invention (hereinafter referred to as the equipment pre-installation method): In this embodiment, during the installation of the upper and lower sections, the equipment is not fixed initially. During the installation of the upper and lower sections, the equipment is temporarily fixed to the upper section. After the equipment moves with the upper section to a position that matches the lower section, the connection between the equipment and the upper section is removed, allowing the equipment to be installed on the lower section.

[0024] Specifically, such as Figure 1 As shown, before installation, it is necessary to distinguish between the upper section 2 and the lower section 3. The relative positions of the upper section 2, lower section 3, and equipment 1 should be clearly defined according to the drawings to facilitate subsequent temporary fixing operations. Since equipment 1 is temporarily fixed to the upper section 2 in this embodiment, a structure capable of lifting and lowering it needs to be set between equipment 1 and the upper section 2. A lifting structure for hoisting equipment 1 is set on the upper section 2. In this embodiment, the lifting structure is a lifting bracket 5. According to the equipment 1 layout diagram, the relative positions of the upper section 2, lower section 3, and equipment 1 are determined, and the lifting bracket 5 is set above the final location of equipment 1. There are also lifting points 4 on equipment 1 that can lift it. The lifting bracket 5 and lifting points 4 need to be compatible. Lifting points 4 are fixed structures on equipment 1, such as lifting rings or hooks on the shell. The lifting bracket 5 requires additional installation. In this embodiment, the number of lifting weights 5 is twice that of lifting points 4. Each pair of lifting weights 5 corresponds to one of the lifting points 4, with the lifting point 4 positioned precisely at the center of the lifting weight 5 position, ensuring stability during lifting. The positions of the lifting points 4 and lifting weights 5 are determined based on the positional correspondence on the layout diagram to avoid force misalignment. When determining the positions of the lifting weights 5 and lifting points 4, a lifting path simulation can also be performed to ensure no interference occurs during lifting. Of course, in other embodiments, different numbers of lifting weights 5 can be selected to set the position of the lifting points 4. Alternatively, in other embodiments, the lifting device 1 can be configured as a hook or other structure.

[0025] After the position of the lifting lugs 5 and the lifting points 4 is set, the equipment 1 needs to be temporarily fixed on the upper layer section 2, so that the equipment 1 can be lifted with the upper layer section 2. In this embodiment, the fixing mode mainly uses the chain hoist and secondarily uses the temporary support. The chain hoist 6 is connected between the lifting lugs 5 and the lifting points 4, and the steel wire rope is used to support the weight of the equipment 1 on the upper layer section 2. The temporary support 7 in this embodiment includes the fixed rods fixed on the lower opening structure of the upper layer section 2. The fixed rods are arranged in parallel and in interval, and can support the equipment 1 to some extent. Meanwhile, more contact points with the equipment make the equipment more stable and less likely to shake. Of course, in other embodiments, other numbers or other arrangement forms can be used, such as the cross form or more fixed rods.

[0026] As shown in Figure 2 When the ship is built, the lower layer section 3 is placed in position, the chain hoist 6 is used to connect the equipment 1 and the upper layer section 2, the lifting lugs 5 and the lifting points 4 are used to control the chain hoist 6 so that the equipment 1 is lifted and the bottom end of the equipment 1 is kept higher than the bottom end of the upper layer section 2, and then the temporary support 7 is used to assist the fixing of the position of the equipment 1. At this time, the connection between the equipment 1 and the upper layer section 2 is completed. Then the upper layer section 2 can be lifted, the upper layer section 2 with the equipment 1 is hoisted to the upper side of the lower layer section 3, and the positions of the upper layer section 2 and the lower layer section 3 are corresponded. Then the temporary support 7 between the equipment 1 and the upper layer section 2 is removed, and the equipment 1 will not fall because the chain hoist 6 is still used to connect the two. The equipment 1 is slowly lowered by the chain hoist 6, so that the equipment 1 is connected with the lower layer section 3, the necessary welding points and connection points are installed, and the connection between the equipment 1 and the lower layer section 3 is completed.

[0027] In summary, in this embodiment, the equipment is temporarily fixed with the upper layer section, which avoids the interference in the lifting process. Then the temporary fixing between the equipment and the upper layer section is cancelled, the equipment is fixed on the lower layer section, and the installation is completed. At this time, the lifting height of the upper layer section can be only higher than the lower layer section, but not higher than the sum of the height of the lower layer section and the equipment, which is beneficial to reduce the performance and parameter requirements of the gantry crane.

[0028] It should be clear that the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

Claims

1. A method of pre-installation of a shipbuilding block stage plant, characterized by: The hoisting structure capable of hoisting the equipment is preset on the upper layer section in advance, the lower layer section without the equipment is placed in place first, then the upper layer section is hoisted, the equipment and the upper layer section are connected by using a chain hoist, then the chain hoist is controlled to hoist the equipment and keep the bottom end of the equipment higher than the bottom end of the upper layer section, then the position of the equipment is fixed by using a temporary support, then the upper layer section with the equipment is hoisted as a whole above the lower layer section and the positions of the upper layer section and the lower layer section are corresponded, then the temporary support between the equipment and the upper layer section is removed, the chain hoist is controlled to lower the equipment, the equipment is docked with the lower layer section, and the installation is completed.

2. A method of pre-installation of shipbuilding block stage plant according to claim 1, characterized in that: Before the hoisting structure is set on the upper layer section, the relative positions of the upper layer section and the lower layer section are determined according to the equipment layout, and then the position of the hoisting structure relative to the upper layer section is determined.

3. A method of pre-installation of shipbuilding block stage plant according to claim 2, characterized in that: The hoisting structure is a lifting lug arranged on the upper layer section, and the equipment is provided with a lifting point, and the positions of the lifting point and the lifting lug are corresponded.

4. A method of pre-installation of shipbuilding block stage plant according to claim 3, characterized in that: The lifting lug is arranged at a strong structure of the upper layer section.

5. A method of pre-erection of shipbuilding block stage equipment according to any one of claims 1-4, characterized in that: The temporary support comprises a fixing rod fixed to a lower opening structure of the upper layer section.

6. A method of pre-installation of shipbuilding block stage plant according to claim 5, characterized in that: The fixing rod is provided with at least two.

7. A method of pre-installation of shipbuilding block stage plant according to claim 3 or 4, characterized in that: The number of the lifting lugs is twice the number of the lifting points, and each lifting point is corresponded to two lifting lugs, and the lifting lugs are symmetrically arranged relative to the corresponding lifting point.

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