A cryogenic tank support pad laminate wood mounting system and method

Abstract

This application discloses a laminated wood installation system and method for a cryogenic tank support base. The laminated wood installation method for the cryogenic tank support base includes the following steps: a laminated wood lifting step: lifting the laminated wood to a first depth position within the support base; a clamping structure installation step: installing a clamping structure on the outer periphery of the laminated wood, the clamping structure having a first clamping end and a second clamping end disposed opposite to each other, the first clamping end being placed on the bottom surface of the laminated wood, and the second clamping end being placed on the top surface of the support base; a laminated wood clamping step: assembling a screw rod into the clamping structure, the abutting end of the screw rod passing through the second clamping end and abutting against the top surface of the support base; rotating the operating end of the screw rod in a first direction, the screw rod moving towards the first clamping end; generating a compressive force between the abutting end and the first clamping end until the laminated wood is embedded into the second depth position within the support base.

Description

Technical Field

[0001] This application relates to the fields of shipbuilding and cryogenic storage and transportation technology, and in particular to a laminated wood installation system and method for cryogenic tank support base. Background Technology

[0002] In liquefied petroleum gas (LPG) ships and storage facilities, cryogenic tanks are core equipment. The bottom of the cryogenic tank is typically supported by a special support base and laminated wood installed within it. Laminated wood is a composite material impregnated with resin and pressed under high temperature and pressure, possessing both extremely high compressive strength and excellent thermal insulation properties. On the one hand, the laminated wood bears and transmits the enormous static and dynamic loads of the tank and the liquid cargo; on the other hand, it effectively blocks the conduction of the low temperature inside the tank (e.g., approximately -42°C for LPG) to the hull or base, preventing cold brittle fracture of the support structure. It is a crucial component ensuring the safe and reliable operation of cryogenic tanks.

[0003] Currently, the traditional method for installing laminated timber inside support bases is as follows: First, a dedicated lifting platform is erected on the ground at the site. Then, jacks are used to lift the laminated timber onto this platform to its final installation position inside the support base. However, this method has several drawbacks: First, before laying the platform, the laminated timber needs to be lifted by a lifting trolley. Then, using bolts coated with grease, the laminated timber is initially fixed through pre-drilled threaded holes (e.g., ∅20mm) on the laminated timber and corresponding holes on the flat steel of the support base. Finally, the lifting platform is laid at the bottom. This process of building and laying the lifting platform is cumbersome and time-consuming. Especially in complex field environments, the installation of a single tank can take up 2-3 days, seriously affecting the overall project schedule. Second, the transportation, storage, fabrication, and material costs of the lifting platform significantly increase the project budget. Third, when multiple cryogenic tanks need to be built simultaneously, the insufficient number of lifting platforms often restricts the installation of laminated timber for the remaining tanks, affecting the construction progress. Therefore, there is an urgent need for a more efficient, economical, flexible laminated wood installation method and supporting tooling that does not rely on a dedicated lifting platform. Summary of the Invention

[0004] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, embodiments of this application provide a laminated wood support system and method for cryogenic tanks, which simplifies the installation of laminated wood and improves construction efficiency.

[0005] This application provides a cryogenic tank support base laminated wood installation system, including a clamping structure and a screw rod. The clamping structure has a first clamping end and a second clamping end arranged opposite to each other. The screw rod has a threaded outer periphery, and its two ends are respectively configured as an abutment end and an operating end. The screw rod is threadedly connected to the second clamping end. The first clamping end is located on the bottom surface of the laminated wood, and the abutment end of the screw rod is located on the top surface of the support base. By rotating the screw rod, the height position relationship between the screw rod and the second clamping end is adjusted to change the height position relationship between the abutment end and the first clamping end, thereby embedding the laminated wood into the support base. The outer diameter of the operating end is larger than the outer diameter of the screw rod.

[0006] According to an embodiment of the first aspect of this application, the installation system further includes a transport device for transporting and lifting the laminated wood to the bottom opening of the support.

[0007] Secondly, this application provides a method for installing laminated wood support for cryogenic tanks, using the laminated wood installation system provided in any embodiment of the first aspect, including the following steps:

[0008] Laminate jacking procedure: Jack up the laminate to the first depth position inside the support base;

[0009] Clamping structure installation steps: Install the clamping structure on the outer periphery of the laminated wood, wherein the first clamping end of the clamping structure is placed on the bottom surface of the laminated wood, and the second clamping end is placed on the top surface of the support base;

[0010] Laminate clamping steps: Place the abutting end of the screw rod against the top surface of the support base; rotate the operating end of the screw rod in a first direction to move the screw rod toward the first clamping end, generating a squeezing force between the abutting end and the first clamping end until the laminate is embedded into the support base at a second depth.

[0011] According to an embodiment of the second aspect of this application, the method for installing laminated wood support for cryogenic tanks further includes a screw-on rod installation step to install the screw-on rod onto the clamping structure. The screw-on rod installation step is performed before the laminated wood clamping step and includes:

[0012] The abutting end of the screw rod passes through the second clamping end of the clamping structure.

[0013] According to an embodiment of the second aspect of this application, the method for installing laminated wood support for cryogenic tanks further includes a movable clamping head installation step, wherein the movable clamping head is installed at the abutting end of the screwing rod. The movable clamping head installation step is disposed between the screwing rod installation step and the laminated wood clamping step, and includes:

[0014] The movable clamping head is assembled to the abutting end of the screwing rod, wherein the outer diameter of the movable clamping head is larger than the outer diameter of the screwing rod body;

[0015] Adjust the position of the movable clamping head until the line connecting the movable clamping head and the first clamping end is collinear with the axis of the screw rod.

[0016] According to an embodiment of the second aspect of this application, after the laminated wood is embedded into the second depth position of the support base, the method for installing the laminated wood of the cryogenic tank support base further includes a removal step to remove the clamping structure and the screw rod. The removal step is performed after the laminated wood clamping step and includes:

[0017] Rotate the operating end in a second direction, which is opposite to the first direction, and the screw rod moves in a direction away from the support seat until the abutting end leaves the support seat and forms an operating gap with the support seat.

[0018] Remove the clamping structure and the screw rod from the outer periphery of the laminated wood.

[0019] According to an embodiment of the second aspect of this application, before removing the clamping structure and the screw rod from the outer periphery of the laminated wood, the movable clamping head is first removed from the abutting end during the operating gap.

[0020] According to an embodiment of the second aspect of this application, in the clamping structure installation step, the clamping structure is installed at a plurality of first points on the outer periphery of the laminated wood, and the plurality of first points are evenly arranged along the outer periphery of the laminated wood.

[0021] According to an embodiment of the second aspect of this application, after the removal step, the clamping structure is installed at a second location on the outer periphery of the laminated wood, wherein the second location does not coincide with the first location, and the clamping structure installation step, the laminated wood clamping step, and the removal step are performed at the second location.

[0022] According to an embodiment of the second aspect of this application, jacking the laminated wood to a first depth position in the support includes the following steps:

[0023] The laminated wood is transported using a transport device to align with the bottom opening of the support base;

[0024] The laminated wood is lifted to a first depth position within the bottom opening of the support using the transport device.

[0025] Based on the above technical solution, the embodiments of this application have at least the following beneficial effects:

[0026] The above technical solution utilizes two opposing clamping ends of the clamping structure to hook and keep the laminated wood aligned within the opening of the support base. When the screw rod is rotated, it moves towards the laminated wood, meaning the distance between the abutting end of the screw rod and the first clamping end of the clamping structure continuously decreases. This generates a compressive force between the abutting end of the screw rod and the first clamping end of the clamping structure. This compressive force acts on the top of the support base and the bottom of the laminated wood, continuously pressing the laminated wood into the support base until it is embedded, thus achieving the installation of the laminated wood. Therefore, the clamping structure and screw rod not only lift the laminated wood but also provide initial support during the entire lifting process. This method avoids the traditional combination of lifting platforms and jacks for installing laminated timber. Firstly, it eliminates the time required for calling up and installing lifting platforms and jacks, shortening the laminated timber installation period. Secondly, the transportation, installation, and use of the clamping structure and tightening rods are very convenient, making the laminated timber installation more flexible and improving efficiency. Thirdly, eliminating the use of lifting platforms and jacks reduces construction costs and overcomes the problem of insufficient lifting platforms hindering construction speed in scenarios where multiple cryogenic tanks are being constructed simultaneously. Attached Figure Description

[0027] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0028] Figure 1 This is a schematic diagram of the structure of the bottom support base of the cryogenic tank involved in the embodiments of this application;

[0029] Figure 2 This is a flowchart of the method for installing laminated wood support for cryogenic tanks in this application embodiment;

[0030] Figure 3 This is a schematic diagram of the laminated wood being lifted to the opening position of the support base in an embodiment of this application;

[0031] Figure 4 This is a schematic diagram of the laminated wood being installed in the support base in an embodiment of this application;

[0032] Figure 5 yes Figure 4 The sectional view along the AA direction shows a schematic diagram of using a clamping structure and a screw rod to lift the laminated wood.

[0033] Figure 6 yes Figure 4 Sectional view along the BB direction;

[0034] Figure 7 This is a schematic diagram of the clamping structure and the screw rod in the first usage state in the embodiments of this application;

[0035] Figure 8 This is a schematic diagram of the clamping structure and the screw rod in the second usage state in the embodiments of this application.

[0036] Attached reference numerals: 100, laminated wood; 101, first point;

[0037] 200, support base; 210, opening; 230, baffle;

[0038] 300. Clamping structure; 310. First clamping end; 320. Second clamping end;

[0039] 400. Tightening rod; 401. Rod body; 410. Abutment end; 411. Movable clamping head; 420. Operating end;

[0040] 500. Transport equipment; 510. Support plate;

[0041] 600. Low-temperature tank. Detailed Implementation

[0042] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0043] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0048] The bottom of a cryogenic tank is typically supported by a support base and laminated timber installed inside. The laminated timber not only serves as a load-bearing and structural support, bearing and transmitting the static weight of the entire tank as well as the dynamic impact caused by the sloshing of the liquid cargo during navigation, but also absorbs vibrations to eliminate the adverse effects of cryogenic liquid on the steel saddle, achieving a stabilizing and buffering effect. Furthermore, it also serves as thermal insulation, using its extremely low thermal conductivity to effectively block the conduction of the low temperature inside the tank to the hull, preventing the hull steel from undergoing brittle fracture due to low temperatures and ensuring that the temperature of the hull structure remains within a safe range.

[0049] Please see Figure 1The cryogenic tank 600 has a support base 200 at its bottom. The bottom of the support base 200 is surrounded by baffles 230 to form a frame, and the frame has a downward opening 210. The laminated wood 100 is inserted into the frame of the support base 200 from bottom to top through the opening 210, thereby realizing the installation of the laminated wood 100. During the process of pushing the laminated wood 100 into the support base 200 from bottom to top, a large lifting force is required for the laminated wood 100, and it is necessary to ensure that the laminated wood 100 and the support base 200 are accurately aligned during the lifting process.

[0050] In related technologies, the method for installing laminated wood within a support base typically involves first constructing a dedicated lifting platform on site, then using jacks to lift the laminated wood to its final installation position inside the support base. The laminated wood is then initially secured using bolts coated with grease through pre-drilled threaded holes in the laminated wood and corresponding holes in the surrounding baffles of the support base. This approach suffers from the problems of cumbersome and time-consuming construction and installation of the lifting platform, and the extended time required for its use. When multiple cryogenic tanks need to be constructed simultaneously, the insufficient number of lifting platforms often hinders the installation progress of the laminated wood for the remaining tanks. Therefore, this application provides a laminated wood installation system and method for cryogenic tank support bases, which simplifies the installation process and improves installation efficiency.

[0051] Firstly, please refer to Figure 5 and Figure 7 This application provides a laminated wood installation system (hereinafter referred to as the installation system), including a clamping structure 300 and a tightening rod 400. The clamping structure 300 has a first clamping end 310 and a second clamping end 320 disposed opposite to each other. The tightening rod 400 has a threaded outer periphery on its rod body 401. The two ends of the rod body 401 are respectively configured as an abutment end 410 and an operating end 420. The tightening rod 400 is threadedly connected to the second clamping end 320, and the abutment end 410 is movably disposed between the first clamping end 310 and the second clamping end 320. Between the two clamping ends 320, specifically, the first clamping end 310 is located on the bottom surface of the laminated wood 100, and the abutting end 410 of the screw rod 400 is located on the top surface of the support base 200. By rotating the screw rod 400, the height position relationship between the screw rod 400 and the second clamping end 320 is adjusted, thereby changing the height position relationship between the abutting end 410 and the first clamping end 310, so as to embed the laminated wood 100 into the support base 200. The outer diameter of the operating end 420 is larger than the outer diameter of the rod body 401.

[0052] The aforementioned installation system uses a clamping structure 300 with a first clamping end 310 and a second clamping end 320 positioned opposite each other. A screw-on rod 400 is threaded to the second clamping end 320, allowing the abutment end 410 of the screw-on rod 400 to movably reside between the first clamping end 310 and the second clamping end 320. When the operating end 420 is rotated, the screw-on rod 400 moves axially relative to the second clamping end 320, and the abutment end 410 applies a clamping force to the laminated wood 100 or related components. This clamping force manifests as a lifting force on the laminated wood 100. Simultaneously, the outer diameter of the operating end 420 is designed to be larger than the outer diameter of the rod body 401, providing a larger force application surface for the operator. Manual rotation is possible without an additional wrench, making the rotation of the screw-on rod 400 less strenuous and improving construction convenience. Furthermore, the compact structure and few components of the entire system facilitate rapid deployment at multiple points around the laminated wood 100, supporting coordinated lifting and fine-tuning, significantly reducing the construction cost and time of traditional lifting platforms. Therefore, the clamping structure 300 and the tightening rod 400 not only lift the laminated wood 100 but also provide initial support during the lifting process. This avoids the traditional method of using a combination of lifting platforms and jacks to install the laminated wood 100. On one hand, it saves time on the deployment and installation of lifting platforms and jacks, shortening the installation period. On the other hand, the clamping structure 300 and the tightening rod 400 are very easy to transport, install, and use, making the installation of the laminated wood 100 more flexible and improving installation efficiency. Furthermore, eliminating the need for lifting platforms and jacks not only reduces construction costs but also overcomes the problem of insufficient lifting platforms restricting construction speed in scenarios where multiple cryogenic tanks 600 are being constructed simultaneously.

[0053] In some embodiments, the installation system further includes a transport device 500 for transporting and lifting the laminated wood 100 to the bottom opening 210 of the support 200. The smooth vertical lifting force provided by the transport device 500 overcomes the weight of the laminated wood 100, causing it to rise at a low and uniform speed. Due to the guiding effect of the bottom opening 210 of the support 200, the laminated wood 100 automatically corrects minor horizontal deviations during the ascent, gradually entering the predetermined frame. The lifting action of the transport device 500 allows the laminated wood 100 to be lifted smoothly and avoids collisions between the laminated wood 100 and the edge of the support 200. The lifting direction of the transport device 500, perpendicular to the ground (or the ship's hull base), ensures that the bottom surface of the laminated wood 100 remains level during the lifting process, preventing jamming due to tilting. Furthermore, it saves time in the initial alignment and engagement of the laminated wood 100 with the support 200, improving the installation efficiency of the laminated wood 100.

[0054] Secondly, please refer to Figures 2 to 5This embodiment provides a method for installing laminated wood support for cryogenic tanks (hereinafter referred to as the installation method). This installation method uses the installation system provided in any embodiment of the first aspect of this application for installation, and the installation method includes the following steps:

[0055] In the laminated wood lifting step S100, the laminated wood 100 is lifted to the first depth position within the support 200.

[0056] The first depth position refers to the initial depth position, which can be zero, that is, the laminated wood 100 is just aligned with the opening 210 of the support 200 but the laminated wood 100 is not pushed into the support 200; of course, the first depth can also be a shallower position, for example, so that a small part of the top of the laminated wood 100 is pushed into the opening 210 of the support 200, but is not fully embedded in the support 200.

[0057] In the clamping structure installation step S200, a clamping structure 300 is installed on the outer periphery of the laminated wood 100. The clamping structure 300 has a first clamping end 310 and a second clamping end 320 that are arranged opposite to each other. The first clamping end 310 is placed on the bottom surface of the laminated wood 100, and the second clamping end 320 is placed on the top surface of the support base 200.

[0058] In the laminated wood clamping step S300, the abutting end 410 of the screw rod 400 is abutted against the top surface of the support base 200; the operating end 420 of the screw rod 400 is rotated in the first direction, so that the screw rod 400 moves toward the first clamping end 310. In this way, a compressive force is generated between the abutting end 410 and the first clamping end 310 until the laminated wood 100 is embedded into the second depth position in the support base 200.

[0059] The second depth position can be the target depth position, that is, the laminated wood 100 is completely embedded in the support base 200. For example, the top of the laminated wood 100 abuts against the top surface inside the frame of the support base 200 and the laminated wood 100 can no longer be pushed in. At this time, the laminated wood 100 is installed.

[0060] In this embodiment, the two opposing clamping ends of the clamping structure 300 can hook and keep the laminated wood 100 aligned in the opening 210 of the support base 200. When the screw rod 400 is rotated, the screw rod 400 moves toward the laminated wood 100. That is, the distance between the abutting end 410 of the screw rod 400 and the first clamping end 310 of the clamping structure 300 will continuously decrease, thereby generating a compressive force between the abutting end 410 of the screw rod 400 and the first clamping end 310 of the clamping structure 300. This compressive force acts on the top of the support base 200 and the bottom of the laminated wood 100, so that the laminated wood 100 can be continuously squeezed into the support base 200 until the laminated wood 100 is embedded in the support base 200, thus realizing the installation of the laminated wood 100. In this installation method, the first clamping end 310 of the clamping structure 300 not only supports the laminated wood 100, providing initial fixation, but also, through the threaded engagement between the clamping structure 300 and the screw rod 400, reduces the distance between the abutting end 410 of the screw rod 400 and the first clamping end 310 of the clamping structure 300 during the rotation of the screw rod 400, thus lifting the laminated wood 100 into the support base 200. Therefore, the clamping structure 300 and the screw rod 400 not only lift the laminated wood 100, but also provide initial support for it throughout the lifting process. This method avoids the traditional method of using a combination of lifting platforms and jacks to install laminated wood 100. On one hand, it saves time on the deployment and installation of lifting platforms and jacks, shortening the installation period. On the other hand, the transportation, installation, and use of the clamping structure 300 and the tightening rod 400 are very convenient, making the installation of laminated wood 100 more flexible and improving installation efficiency. Furthermore, eliminating the use of lifting platforms and jacks reduces construction costs and overcomes the problem of insufficient lifting platforms restricting construction speed in scenarios where multiple cryogenic tanks 600 are being constructed simultaneously.

[0061] Optionally, the operating end 420 of the lever 400 can be equipped with an operating crossbar, an operating dial, etc. The length of the operating crossbar or the diameter of the operating dial can be greater than the outer diameter of the lever body 401 of the lever 400, which helps to operate the lever 400 to rotate with less effort.

[0062] In some embodiments, please combine Figure 7 and Figure 8The method for installing laminated wood support for cryogenic tanks also includes a screw-rod installation step, in which the screw-rod 400 is installed on the clamping structure 300. This screw-rod installation step is performed before the laminated wood clamping step. Specifically, the screw-rod installation step involves passing the abutting end 410 of the screw-rod 400 through the second clamping end 320 of the clamping structure 300, thereby installing the screw-rod 400 onto the clamping structure 300. This means that the clamping structure 300 and the screw-rod 400 can be installed onto the support 200 step-by-step, which helps reduce the installation difficulty of the clamping structure 300 and the screw-rod 400, and improves the safety and convenience of construction operations. Of course, in other alternative embodiments, the screw-rod 400 can be assembled into the clamping structure 300 first, and then the clamping structure 300 can be installed onto the outer periphery of the support 200 and the laminated wood 100.

[0063] In some embodiments, the method for installing laminated wood support for cryogenic tanks further includes a movable clamping head installation step, wherein a movable clamping head 411 is installed at the abutment end 410 of the screwing rod 400. The movable clamping head installation step is disposed between the screwing rod installation step and the laminated wood clamping step, and the movable clamping head installation step specifically includes:

[0064] The movable clamping head 411 is assembled to the abutting end 410 of the screwing rod 400, wherein the outer diameter of the movable clamping head 411 is larger than the outer diameter of the rod body 401 of the screwing rod 400.

[0065] Adjust the position of the movable clamping head 411 until the line connecting the movable clamping head 411 and the first clamping end 310 is collinear with the axis of the screw rod 400.

[0066] By installing a movable clamping head 411 at the abutment end 410 of the screw rod 400, the surfaces of the screw rod 400 and the support base 200 can have a larger contact area, which helps to improve the stability of the screw rod 400 when it abuts against the support base 200. When the screw rod 400 is rotated, there is a huge compressive force between the screw rod 400 and the support base 200. Due to machining tolerances, assembly errors, or operating space limitations, the axis of the screw rod 400 may be slightly deviated from the ideal lifting direction. At this time, by using the movable clamping head 411 with a larger outer diameter, the compressive force deviated from the axis of the rod 401 can be dispersed, so that the contact point between the screw rod 400 and the clamping structure 300 is always located near the geometric center of the movable clamping head 411, ensuring that the line of action of the compressive force between the two is coaxial with the axis of the screw rod 400, and avoiding additional bending moment caused by deviance. On the one hand, since the compressive force is always coaxial with the rod 401 of the tightening rod 400, the tightening rod 400 only bears axial compressive stress and will not generate bending stress due to skewness, thereby avoiding bending deformation of the tightening rod 400, abnormal wear of the threads, or jamming, and extending the tooling life. On the other hand, the coaxial force line helps to make the lifting action smoother, and the laminated wood 100 is lifted vertically without easy lateral displacement or tilting, ensuring that it accurately enters the predetermined position of the support 200. In addition, this design can reduce the requirements for operating space and assembly precision. Even if the clamping structure 300 is slightly skewed or the surface of the laminated wood 100 is uneven, there is no need for repeated centering, which effectively improves the construction error tolerance and efficiency; and because the force is uniform at the contact point, excessive local friction caused by uneven loading is avoided, making the rotation of the tightening rod 400 easier and less strenuous.

[0067] In some embodiments, after the laminated wood 100 is embedded into the support 200 at a second depth, the cryogenic tank support laminated wood installation method further includes a removal step to remove the clamping structure 300 and the screw rod 400. The removal step is performed after the laminated wood clamping step and includes:

[0068] Rotate the operating end 420 in the second direction, which is opposite to the first direction, and the screw rod 400 moves in the direction away from the support base 200 until the contact end 410 leaves the support base 200 to form an operating gap with the support base 200.

[0069] Remove the clamping structure 300 and the screw rod 400 from the periphery of the laminated wood 100.

[0070] The lever 400 has two opposite rotatable directions, wherein the first direction is clockwise and the second direction is counterclockwise, or the first direction is counterclockwise and the second direction is clockwise.

[0071] When the operating end 420 is rotated in the second direction, the distance between the abutting end 410 of the screw rod 400 and the first clamping end 310 of the clamping structure 300 gradually increases, thereby causing the abutting end 410 to leave the surface of the support 200, releasing the clamping effect of the clamping structure 300 and the screw rod 400 on the support 200 and the laminated wood 100, so that the clamping structure 300 can be removed from the outside of the laminated wood 100.

[0072] In some embodiments, the movable clamping head 411 may be removed from the abutment end 410 during the operation interval before the clamping structure 300 and the screw rod 400 are removed from the outer periphery of the laminate 100.

[0073] The movable clamping head 411 can be disassembled using this operating gap. After the movable clamping head 411 is disassembled, the abutting end 410 of the screw rod 400 can be completely withdrawn from the second clamping end 320 of the clamping structure 300. This helps to disassemble the clamping structure 300 and the screw rod 400 to their most original state, facilitating the flexibility of handling, assembling, and installing the clamping structure 300 and the screw rod 400.

[0074] In some embodiments, please refer to Figure 6 In the clamping structure installation step S200, clamping structures 300 are installed at multiple first points 101 on the outer periphery of the laminated wood 100, and the multiple first points 101 are evenly arranged along the outer periphery of the laminated wood 100.

[0075] In this embodiment, the clamping structure 300 and the screw rod 400 are not used as a single set. Instead, multiple first points 101 are selected on the outer periphery of the laminated wood 100, and a clamping structure 300 is installed at each first point 101. The first points 101 are evenly distributed on the outer periphery of the laminated wood 100, specifically, they can be distributed at equal angular intervals along the circumference, or symmetrically arranged along the four sides of the rectangular laminated wood 100, such as... Figure 6 As shown, multiple uniformly arranged clamping structures 300 simultaneously apply a lifting force to the laminated wood 100. When the screw rods 400 of the multiple clamping structures 300 rotate and lift synchronously, the vertically upward lifting force generated by the first clamping end 310 of each clamping structure 300 on the bottom of the laminated wood 100 is symmetrically distributed in the horizontal plane. The resultant force of these forces passes through the geometric center of the laminated wood 100, and the components in any horizontal direction are mutually balanced. Thus, the laminated wood 100 is subjected to a pure vertical resultant force without lateral bias during the lifting process, which helps to stabilize its posture and prevents it from tilting or twisting due to unilateral force.

[0076] Specifically, under uniform stress, the laminated wood 100 can avoid cracking, deformation, or internal structural damage caused by excessive local stress, thus protecting its integrity. Furthermore, due to the symmetrical distribution of the lifting force, the laminated wood 100 maintains its lower or upper surface parallel to the bottom surface of the support 200 throughout the entire lifting process. Once the laminated wood 100 is embedded in the support 200, its levelness directly meets the design requirements, eliminating the need for repeated leveling and improving installation accuracy and efficiency. It is understandable that multiple clamping structures 300 can be operated collaboratively by multiple personnel, synchronously rotating the tightening rod 400. The operation is intuitive, and the stress on each tooling set is relatively small, reducing the load requirements of a single tooling set and avoiding the use of large lifting equipment, thereby improving on-site construction safety. Therefore, through the above-mentioned setup, this embodiment achieves stable and high-precision installation of the laminated wood 100 using simple and low-cost tooling.

[0077] In some embodiments, after the removal step, a clamping structure 300 is installed at a second point on the outer periphery of the laminate 100, wherein the second point does not coincide with the first point 101, and the clamping structure installation step S200, the laminate clamping step S300, and the removal step are performed at the second point.

[0078] After the initial lifting and fixing in steps S100 to S300, the laminated wood 100 is embedded in the support base 200 and bears most of the weight of the cryogenic tank 600. However, due to the thickness tolerance of the laminated wood 100 itself, the local unevenness of the bottom surface of the support base 200, or the synchronization error of multiple clamping structures 300 during the lifting process, there may still be slight level deviations (i.e., local high points or low points) on the upper or lower surface of the laminated wood 100. At this time, the clamping structures 300 originally located at the first point 101 have been removed, and the support force at these positions has been released. At the second point, usually in the area near the suspected low point on the edge of the laminated wood 100, or at an angle evenly distributed around the circumference but different from the first point 101, the clamping structures 300 are reinstalled. The operator can selectively rotate some of the screw rods 400 to apply a small amount of additional vertical lifting force to the corresponding local area of ​​the laminated wood 100. The local jacking force raises the lower surface of the laminated wood 100 in that area, causing a slight tilt change in the overall posture of the laminated wood 100. Combined with real-time level measurements, this accurately compensates for any existing leveling errors. This operation method enables high-precision leveling of the laminated wood 100. Furthermore, based on actual measurement data, operators can freely select the number and location of the second jacking points and independently control the jacking amount of each clamping structure 300, achieving refined construction. Simultaneously, since the clamping structure 300 used for the first jacking point 101 can be immediately transferred to the second jacking point after removal, no additional tooling is required, allowing for multiple rounds and multiple location reuses of the same tooling, further reducing construction costs.

[0079] In some embodiments, the laminated wood lifting step S100 includes the following steps:

[0080] S110, using the transport device 500 to transport the laminated wood 100 to be aligned with the bottom opening 210 of the support 200;

[0081] The transport device 500 can be a hydraulic trolley, forklift, or dedicated rail-mounted conveyor platform with lifting capabilities. A support plate 510 can be installed on the transport device 500 to support or lift the laminated timber 100. Through the movement and fine-tuning functions of the transport device 500, the laminated timber 100 can be safely and labor-savingly transferred from the storage area or pre-assembly area to directly below the installation position. Utilizing the steering and lifting adjustment functions of the transport device 500, limitations imposed by confined space and the inability of hoisting equipment to access the site can be overcome, achieving initial horizontal and vertical positioning of the laminated timber 100 and establishing a benchmark for subsequent lifting operations.

[0082] S120, using the transport device 500, the laminated wood 100 is lifted to a first depth position within the bottom opening 210 of the support 200.

[0083] The stable vertical lifting force provided by the transport device 500 overcomes the gravity of the laminated timber 100, causing it to rise at a low and uniform speed. Due to the guiding effect of the bottom opening 210 of the support base 200 (such as the flat steel or baffles 230 on both sides), the laminated timber 100 automatically corrects minor horizontal deviations during its ascent, gradually entering the predetermined frame. When the first depth position is reached, the transport device 500 stops rising and maintains a locked position, leaving operating space for the subsequent installation of the clamping structure 300 (as in steps S200-S300). This operating method ensures the laminated timber 100 is lifted smoothly and avoids collisions between the laminated timber 100 and the edge of the support base 200. The lifting direction of the transport device 500, perpendicular to the ground (or the ship's base), ensures that the bottom surface of the laminated timber 100 remains horizontal during lifting, preventing jamming due to tilting. Furthermore, it saves time in the initial alignment and engagement of the laminated timber 100 with the support base 200, improving the installation efficiency of the laminated timber 100.

[0084] In some embodiments, the method for installing laminated wood support for cryogenic tanks further includes a laminated wood fixing step to fix the laminated wood 100 within the bottom opening of the support 200. The laminated wood fixing step follows the laminated wood clamping step S300 and includes:

[0085] Screws are screwed into the first threaded hole on the side wall of the support base 200 and the second threaded hole in the laminated wood 100 in sequence to fix the laminated wood 100 in the support base 200.

[0086] Specifically, the support base 200 (such as the flat steel or side plates on the left and right sides) has multiple through-holes pre-drilled first threaded holes, and the corresponding positions of the laminated wood 100 have pre-drilled second threaded holes. The diameter, pitch, and thread direction of the first and second threaded holes are matched. When the laminated wood 100 reaches the second depth position, the operator uses a wrench or electric screwdriver to pass threaded fasteners (such as hex bolts or special screws) through the first threaded holes on the side wall of the support base 200 and screw them into the pre-drilled second threaded holes in the laminated wood 100 until the fasteners reach the specified torque, thereby firmly connecting the laminated wood 100 to the side wall of the support base 200 into one unit. In this embodiment, the laminated wood 100 is finally fixed in the support base 200 using a simple and reliable threaded connection, which ensures both installation accuracy and long-term stability, while also taking into account the convenience of maintenance.

[0087] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A laminated wood mounting system, characterized in that, include A clamping structure having a first clamping end and a second clamping end disposed opposite to each other; and A screw rod is provided with threads on its outer circumference. The two ends of the rod are respectively designated as an abutment end and an operating end. The screw rod is threadedly connected to a second clamping end. The first clamping end is located on the bottom surface of the laminated wood, and the abutment end of the screw rod is located on the top surface of the support base. By rotating the screw rod, the height relationship between the screw rod and the second clamping end is adjusted, thereby changing the height relationship between the abutment end and the first clamping end, thus embedding the laminated wood into the support base. The outer diameter of the operating end is larger than the outer diameter of the rod.

2. The laminated wood mounting system of claim 1, wherein, The laminated wood installation system also includes a transport device for transporting and lifting the laminated wood to the bottom opening of the support.

3. A method of installing a cryogenic tank support pad laminate wood, the method comprising: Installation using the laminated wood installation system as described in claim 1 or 2 includes the following steps: Laminate jacking procedure: Jack up the laminate to the first depth position inside the support base; Clamping structure installation steps: Install the clamping structure on the outer periphery of the laminated wood, wherein the first clamping end of the clamping structure is placed on the bottom surface of the laminated wood, and the second clamping end is placed on the top surface of the support base; Laminate clamping steps: Place the abutting end of the screw rod against the top surface of the support base; rotate the operating end of the screw rod in a first direction to move the screw rod toward the first clamping end, generating a squeezing force between the abutting end and the first clamping end until the laminate is embedded into the support base at a second depth.

4. The cryogenic tank support pad laminate wood mounting method of claim 3, wherein, The method for installing laminated wood support for cryogenic tanks further includes a screw-on rod installation step to install the screw-on rod onto the clamping structure. This screw-on rod installation step is performed before the laminated wood clamping step and includes: The abutting end of the screw rod passes through the second clamping end of the clamping structure.

5. The cryogenic tank support pad laminate wood mounting method of claim 4, wherein, The method for installing laminated wood support for cryogenic tanks further includes a movable clamping head installation step, in which the movable clamping head is installed at the abutting end of the screwing rod. This movable clamping head installation step is positioned between the screwing rod installation step and the laminated wood clamping step, and includes: The movable clamping head is assembled to the abutting end of the screwing rod, wherein the outer diameter of the movable clamping head is larger than the outer diameter of the screwing rod body; Adjust the position of the movable clamping head until the line connecting the movable clamping head and the first clamping end is collinear with the axis of the screw rod.

6. The cryogenic tank support pad laminate wood mounting method of claim 3, wherein, After the laminated wood is embedded into the second depth position of the support base, the method for installing laminated wood for the cryogenic tank support base further includes a removal step to remove the clamping structure and the screw rod. The removal step is performed after the laminated wood clamping step and includes: Rotate the operating end in a second direction, which is opposite to the first direction, and the screw rod moves in a direction away from the support seat until the abutting end leaves the support seat and forms an operating gap with the support seat. Remove the clamping structure and the screw rod from the outer periphery of the laminated wood.

7. The cryogenic tank support pad laminate wood mounting method of claim 6, wherein, Before removing the clamping structure and the screw rod from the periphery of the laminated wood, the movable clamping head is first removed from the abutment end during the operating gap.

8. The cryogenic tank support pad laminate wood mounting method of claim 6, wherein, In the clamping structure installation step, the clamping structure is installed at multiple first points on the outer periphery of the laminated wood, and the multiple first points are evenly arranged along the outer periphery of the laminated wood.

9. The cryogenic tank support pad laminate wood mounting method of claim 3, wherein: After the removal step, the clamping structure is installed at a second point on the outer periphery of the laminated wood, wherein the second point does not coincide with the first point. The clamping structure installation step, the laminated wood clamping step, and the removal step are performed at the second point.

10. The cryogenic tank support pad laminate wood mounting method of any of claims 3-9, wherein, Lifting the laminated wood to its first depth position in the support includes the following steps: The laminated wood is transported using a transport device to align with the bottom opening of the support base; The laminated wood is lifted to a first depth position within the bottom opening of the support using the transport device.

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