Corner area corner box mounting method for controlling height of invar pipe and mounting auxiliary device

Abstract

The invention discloses a corner corner box installation method for controlling the height of an invar pipe and an auxiliary installation device, the corner box installation auxiliary device is used for assisting in installing a first corner corner box, a second corner corner box and a third corner corner box, and the installation precision of the three corner boxes can be effectively guaranteed. The situation that the quality precision of an invar pipe is damaged and the invar pipe deforms due to the fact that the positions of the corner boxes are adjusted through knocking is avoided, meanwhile, the first corner area corner box, the second corner area corner box and the third corner area corner box can be installed in place at a time, a large amount of adjustment work of the installation positions of the corner boxes is reduced, and the production efficiency is improved. And the installation efficiency of the corner box is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to a method and auxiliary device for installing corner boxes in the corner area for controlling the height of Invar tubes. Background Technology

[0002] In the installation of corner boxes in the transverse ring area of ​​the cargo tank of LNG carrier NO.96, corner boxes 7, 8, and 9 need to be inserted into the same gap between the Invar tube and the bulkhead. The distance between the Invar tube and the bulkhead has strict process requirements.

[0003] During the installation of corner boxes 7, 8, and 9, their installation accuracy is usually adjusted by forceful methods such as hammering. However, since each horizontal side is several meters or even tens of meters long, hammering the corner box can deform the Invar tubes, affecting its quality and accuracy, and may also cause safety accidents. When installing corner box 9, the spacing between two corner boxes is usually controlled by experience, which cannot guarantee the installation accuracy and quality of corner box 9.

[0004] Furthermore, since the transverse Invar tubes range from several meters to tens of meters in length, their enormous weight causes stress that leads to slight deformation over time. Also, after the installation of the 7, 8, and 9 type corner boxes, the distance between the Invar tubes and the bulkhead will increase. If the tapping force is not properly controlled when adjusting the Invar tubes, it will also affect the quality of the Invar tubes. Summary of the Invention

[0005] In view of this, the present invention provides a corner box installation method and installation auxiliary device for controlling the height of Invar tubes, in order to solve the problems existing in the background art.

[0006] A method for installing corner boxes for controlling the height of Invar tubes, wherein an installation area for installing a first corner box, a second corner box, and a third corner box is formed between the Invar tube and the bulkhead of the transverse annular region of the cargo tank, specifically including the following steps: S1, place multiple first corner area corner boxes in the installation area and make them adhere to the inner wall of the Invar tube plate, and connect the front and rear first corner area corner boxes; S2, the corner box installation auxiliary device is arranged at the box connection position between the front and rear first corner boxes or the box connection position between the front and rear second corner boxes. The corner box installation auxiliary device is used to install multiple resin-coated second corner boxes into place, and the adjacent front and rear second corner boxes are connected. The corner box installation auxiliary device includes a ratchet wrench, a first clamp fixed to one side of the ratchet wrench, and a second clamp fixed to the other side of the ratchet wrench. When installing the second corner box, the first clamp is clamped on the anchor flat iron, and the second clamp is clamped on the corner of the first corner box. The first clamp of the corner box installation auxiliary device is clamped on the first anchoring flat iron at its arrangement position, and the second clamp is stuck on the corner of the corner box in the first corner area, and the first part of the first clamp is tightly attached to the lower surface of the anchoring flat iron. S3, fix the telescopic ruler to the end of the ratchet wrench and position the telescopic ruler between the bulkhead and the Invar tube wing; Rotate the ratchet wrench axially. During the rotation, the second clamp presses against the first corner box to fine-tune its position. At the same time, the telescopic ruler measures the distance between the bulkhead and the root of the Invar tube. When the distance between the bulkhead and the root of the Invar tube reaches the theoretical value, stop rotating the ratchet wrench and insert the third corner box between the first and second corner boxes. The two third corner boxes are placed close to the front and rear sides of the second clamp.

[0007] Preferably, the specific steps in step S2 for installing multiple resin-coated second corner boxes into place using the corner box installation auxiliary device are as follows: Place the resin-coated corner box in the installation area with the resin-coated side of the corner box facing the bulkhead. Push the resin-coated second corner box so that one side of the box is in close contact with the first part of the first clamp and the other opposite side of the box is in close contact with the second anchoring flat iron. Compact the resin in the corner box of the second corner area.

[0008] Preferably, the first clamp is a rectangular clamp plate with a U-shaped groove, the distance between one of the groove walls of the U-shaped groove and the side of the rectangular clamp plate on the same side is 2mm, and a threaded hole is provided at one end of the rectangular clamp plate. The second clamp is an L-shaped clamp, with a ball head at one end.

[0009] Preferably, the thickness of both the first clamp and the second clamp is 60mm.

[0010] Preferably, the ratchet wrench includes a ratchet handle, a ball joint and a screw fixed to one end of the ratchet handle, both of which are located on a straight line perpendicular to the axis of the ratchet handle; a fixing hole for fixing a telescopic ruler is provided at the other end of the ratchet handle.

[0011] Preferably, the length of the ratchet handle is adjustable.

[0012] An auxiliary device for installing a corner box for controlling the height of an Invar tube includes a ratchet wrench, a first clamp, a second clamp, and a telescopic ruler. The ratchet wrench includes a ratchet handle, a ball joint and a screw fixed to one end of the ratchet handle, both of which are located on a straight line perpendicular to the axis of the ratchet handle; the first clamp is threaded onto the screw, and the second clamp is rotatably connected to the ball joint; the telescopic ruler is fixed to the other end of the ratchet handle. The thickness of both the first and second clamps is 60mm.

[0013] The beneficial effects of this invention are: 1. This invention utilizes a corner box installation auxiliary device to assist in the installation of the first corner box (corner box No. 7), the second corner box (corner box No. 8), and the third corner box (corner box No. 9). This effectively ensures the installation accuracy of the three types of corner boxes, avoiding damage to the quality and precision of the Invar tubes or deformation caused by hammering to adjust the position of the corner boxes. At the same time, since the first, second, and third corner boxes can be installed in place at once, it also reduces the adjustment work of the installation position of a large number of corner boxes, greatly improving the installation efficiency of the corner boxes.

[0014] 2. When installing the corner box in the third corner area, this application can use the second clamp to directly control the distance between the front and rear corner boxes in one go, without the need to adjust their position later, which greatly improves the installation efficiency and accuracy of the corner box.

[0015] 3. Before installing the third corner box, the present invention can use the corner box installation auxiliary device to adjust the distance between the bulkhead and the root of the Invar tube to make the distance equal to the theoretical value. After the adjustment is in place, the third corner box is installed. In this way, while ensuring the installation accuracy of the three corner boxes, it can also ensure that the distance between the bulkhead and the root of the Invar tube meets the requirements and avoid deformation of the Invar tube.

[0016] 4. In the previous installation of corner boxes 7, 8, and 9, to control the deformation of the Invar tubes, only half of each horizontal edge was usually installed first. The other half of the corner box 8 was installed only after the mixed resin strip on that half had cured. The curing time for the mixed resin strip is 24 hours, meaning that the installation of corner boxes 7, 8, and 9 on one horizontal edge required at least two days. This application, however, allows the installation of corner boxes 7, 8, and 9 on one horizontal edge to be completed in just one day, significantly reducing construction time and improving efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the auxiliary device for installing corner boxes.

[0019] Figure 2 This is a schematic diagram of the first fixture.

[0020] Figure 3 This is a schematic diagram of the second clamp.

[0021] Figure 4 This is a schematic diagram of a ratchet wrench.

[0022] Figure 5 It is a longitudinal sectional view of the corner boxes in the first, second, and third corner sections installed in the gap between the bulkhead and the Invar tubes.

[0023] Figure 6 It is a transverse sectional view of the corner boxes in the first, second, and third corner sections installed in the gap between the bulkhead and the Invar tubes.

[0024] The meanings of the labels in the diagram are as follows: 1 is the corner box in the first corner area. 2 is the corner box in the second corner area. 3 represents the corner box in the third corner area. 4 represents the first fixture, 41 represents the first part of the first fixture, and 42 represents the U-shaped groove. 5 represents a ratchet wrench, 51 represents a ratchet handle, 52 represents a ball joint, and 53 represents a screw. 6 is an Invar tube, 7 is the bulkhead. 8 is the second clamp. 9 is the first anchoring flat iron. 10 is a telescopic ruler. 11. Install auxiliary devices for corner boxes. 12 is the second anchoring flat iron. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0026] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0027] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0028] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0029] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0030] 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.

[0031] This invention provides a method for installing corner boxes for controlling the height of Invar tubes. The Invar tube 6 and the bulkhead 7 of the transverse annular region of the cargo tank form an installation area for installing a first corner box 1, a second corner box 2, and a third corner box 3. The first corner box 1, the second corner box 2, and the third corner box 3 are all arranged in rows. The third corner box 3 is arranged between the first corner box 1 and the second corner box 2. The two corner boxes in the row where the first corner box 1 is located are connected to each other, and the two corner boxes in the row where the second corner box 2 is located are also connected to each other. There is a 60mm gap between the two corner boxes in the row where the third corner box 3 is located.

[0032] The corner box installation method for controlling the height of Invar tubes according to the present invention specifically includes the following steps: S1, place multiple first corner area corner boxes 1 in the installation area and make them adhere to the inner wall of the Invar tube 6, and connect the front and rear first corner area corner boxes 1.

[0033] S2, the corner box installation auxiliary device is arranged at the box connection position between the front and rear first corner box (1) or the box connection position between the front and rear second corner box (2), and multiple resin-coated second corner box 2 are installed in place using the corner box installation auxiliary device, and adjacent front and rear second corner box 2 are connected.

[0034] The corner box installation auxiliary device includes a ratchet wrench 5, a first clamp 4 fixed on one side of the ratchet wrench 5, and a second clamp 8 fixed on the other side of the ratchet wrench 5. When installing the second corner box 2, the first clamp 4 is clamped on the anchor flat iron 9, and the second clamp 8 is clamped on the corner of the first corner box 1.

[0035] The ratchet wrench 5 includes a ratchet handle 51, a ball joint 52 fixed to one end of the ratchet handle 51, and a screw 53. The ball joint 52 and the screw 53 are both located on a straight line perpendicular to the axis of the ratchet handle 51. A fixing hole for fixing a telescopic ruler 10 is provided at the other end of the ratchet handle 51. In this embodiment, the length of the ratchet handle 21 is adjustable.

[0036] The first clamp 4 is a rectangular clamping plate with a U-shaped groove 42. The distance between one wall of the U-shaped groove 42 and the side of the rectangular clamping plate on the same side is 2mm (i.e., the width of the first part 41 is 2mm). One end of the rectangular clamping plate has a threaded hole. The first clamp 4 is threadedly connected to the screw 23 of the ratchet wrench 5 through its threaded hole.

[0037] The second clamp 8 is an L-shaped clamp plate, with a ball head at one end. The ball head of the second clamp 8 is fixed inside the ball joint 52 of the ratchet wrench 5, so that the two are rotatably connected.

[0038] The plate thickness of both the first clamp 4 and the second clamp 8 is equal to the theoretical installation gap between the two corner boxes 3 in the third corner area. In this embodiment, the plate thickness of both the first clamp 4 and the second clamp 8 is 60mm.

[0039] Specifically, the steps for installing multiple resin-coated second corner boxes 2 into place using the corner box installation auxiliary device are as follows: The corner box installation auxiliary device is placed at the box connection position between the front and rear two first corner box 1 or the box connection position between the front and rear two second corner box 2. Holding the ratchet wrench 5, the entire corner box installation auxiliary device is placed in the non-installation position of the third corner box 3 between the first corner box 1 and the second corner box 2 (that is, in the gap between the front and rear two third corner boxes 3), so that its first clamp 4 is clamped on the first anchoring flat iron 9 at its placement position, and the second clamp 8 is locked on the corner of the first corner box 1, and the first part 41 of the first clamp 4 is tightly attached to the lower surface of the anchoring flat iron 9. Place the resin-coated second corner box 2 in the installation area, with the resin-coated surface of the second corner box 2 facing the bulkhead 7. Push the resin-coated second corner box 2 so that one box surface is in close contact with the first part 41 of the first clamp 4 and the other opposite box surface is in close contact with the second anchoring flat iron 12. Compact the resin in the second corner box 2.

[0040] The second corner box 2, after installation, can maintain a gap with the first anchoring flat iron 9 equal to the width of the first part 41 (i.e., Figure 5 The middle distance L3) ensures the installation accuracy of the corner box 2 in the second corner area.

[0041] S3, fix the telescopic ruler 10 at the end of the ratchet wrench 5 and position the telescopic ruler 10 between the bulkhead 7 and the Invar tube 6 wing; Axially rotate the ratchet wrench 5. During the rotation, the first clamp 4 and the handle of the ratchet wrench 5 move relative to each other, so that the second clamp 8 can push against the first corner box 1, so that the first corner box 1 can move slightly. The first corner box 1 pushes against the Invar tube 6 wing, so that the distance between the Invar tube 6 wing and the bulkhead 7 changes. While turning the ratchet wrench 5, use the telescopic ruler 10 to measure the distance between the bulkhead 7 and the root of the Invar tube 6. Figure 5At the mid-distance L1), when the distance between the bulkhead 7 and the root of the Invar tube 6 reaches the theoretical value, stop turning the ratchet wrench 5. Then, insert one third-angle corner box 3 between the first-angle corner box 1 and the second-angle corner box 2, placing the third-angle corner box 3 tightly against the side of the second clamp 8. Then, insert another third-angle corner box 3 between the first-angle corner box 1 and the second-angle corner box 2, placing the third-angle corner box 3 tightly against the side of the second clamp 8. In this way, the thickness of the second clamp 8 can be used to precisely control the distance between the two third-angle corner boxes 3 (the distance between the two third-angle corner boxes 3 is...). Figure 5 Mid-range L2).

[0042] Then, change the arrangement of the corner box installation auxiliary device and repeat the above steps to install each third corner box 3 in place.

[0043] The present invention also provides an auxiliary device for installing corner boxes to control the height of Invar tubes, including a ratchet wrench 5, a first clamp 4, a second clamp 8, and a telescopic ruler 10. The handheld ratchet wrench 5 includes a ratchet handle 21, a ball joint 22 fixed to one end of the ratchet handle 21, and a screw 23. The ball joint 22 and the screw 23 are both located on a straight line perpendicular to the axis of the ratchet handle 21. The first clamp 4 is threadedly fixed to the screw 23, and the second clamp 8 is rotatably connected to the ball joint 22. The telescopic ruler 10 is fixed to the other end of the ratchet handle 21. The first clamp 4 is a rectangular clamping plate with a U-shaped groove 42. The distance between one wall of the U-shaped groove 42 and the side of the rectangular clamping plate on the same side is 2mm (i.e., the width of the first part 41 is 2mm). One end of the rectangular clamping plate has a threaded hole. The first clamp 4 is threadedly connected to the screw 23 of the ratchet wrench 5 through its threaded hole.

[0044] The second clamp 8 is an L-shaped clamp plate, with a ball head at one end. The ball head of the second clamp 8 is fixed inside the ball joint 52 of the ratchet wrench 5, so that the two are rotatably connected.

[0045] The plate thickness of both the first clamp 4 and the second clamp 8 is equal to the theoretical installation gap between the two corner boxes 3 in the third corner area. In this embodiment, the plate thickness of both the first clamp 4 and the second clamp 8 is 60mm.

[0046] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A method for installing corner boxes for controlling the height of an Invar tube, wherein an installation area for installing a first corner box (1), a second corner box (2), and a third corner box (3) is formed between the Invar tube (6) and the bulkhead (7) of the transverse annular region of the cargo tank, characterized in that, Specifically, the following steps are included: S1, place multiple first corner area corner boxes (1) in the installation area and make them adhere to the inner wall of the Invar tube (6), and connect the front and rear first corner area corner boxes (1); S2, the corner box installation auxiliary device is arranged at the box connection position between the front and rear first corner box (1) or the box connection position between the front and rear second corner box (2), and multiple resin-coated second corner boxes (2) are installed in place using the corner box installation auxiliary device, and adjacent front and rear second corner boxes (2) are connected. The corner box installation auxiliary device includes a ratchet wrench (5), a first clamp (4) fixed on one side of the ratchet wrench (5), and a second clamp (8) fixed on the other side of the ratchet wrench (5). When installing the second corner box (2), the first clamp (4) is clamped on the anchor flat iron (9), and the second clamp (8) is clamped on the corner of the first corner box (1). The first clamp (4) of the corner box installation auxiliary device is clamped on the first anchoring flat iron (9) at its arrangement position, and the second clamp (8) is clamped on the corner of the corner box (1) in the first corner area, and the first part (41) of the first clamp (4) is tightly attached to the lower surface of the anchoring flat iron (9). S3, fix the telescopic ruler (10) at the end of the ratchet wrench (5) and position the telescopic ruler (10) between the bulkhead (7) and the Invar tube (6) wing; Rotate the ratchet wrench (5) axially. During the rotation, the second clamp (8) presses against the first corner box (1) to make a fine adjustment to its position. At the same time, the telescopic ruler (10) measures the distance between the bulkhead (7) and the root of the Invar tube (6). When the distance between the bulkhead (7) and the root of the Invar tube (6) reaches the theoretical value, stop rotating the ratchet wrench (5) and insert the third corner box (3) between the first corner box (1) and the second corner box (2). The two third corner boxes (3) are placed close to the front and rear sides of the second clamp (8).

2. The corner box installation method for controlling the height of Invar tubes according to claim 1, characterized in that, The specific steps for installing multiple resin-coated second corner boxes (2) into place using the corner box installation auxiliary device in step S2 are as follows: Place the resin-coated second corner box (2) in the installation area, with the resin-coated surface of the second corner box (2) facing the bulkhead (7). Push the resin-coated second corner box (2) so that one side of the box is in close contact with the first part (41) of the first clamp (4) and the other opposite side of the box is in close contact with the second anchor flat iron (12). Compact the resin in the corner box (2) of the second corner area.

3. The corner box installation method for controlling the height of Invar tubes according to claim 1 or 2, characterized in that, The first clamp (4) is a rectangular clamp plate with a U-shaped groove (42). The distance between one of the groove walls of the U-shaped groove (42) and the side of the rectangular clamp plate on the same side is 2mm. One end of the rectangular clamp plate has a threaded hole. The second clamp (8) is an L-shaped clamp, and one end of the L-shaped clamp is provided with a ball head.

4. The corner box installation method for controlling the height of Invar tubes according to claim 3, characterized in that, The thickness of the first clamp (4) and the second clamp (8) is 60mm.

5. The corner box installation method for controlling the height of Invar tubes according to claim 1, characterized in that, The ratchet wrench (5) includes a ratchet handle (21), a ball joint (22) fixed to one end of the ratchet handle (21), and a screw (23). The ball joint (22) and the screw (23) are both located on a straight line perpendicular to the axis of the ratchet handle (21). A fixing hole is provided at the other end of the ratchet handle (21) for fixing a telescopic ruler (10).

6. The corner box installation method for controlling the height of Invar tubes according to claim 5, characterized in that, The length of the ratchet handle (21) is adjustable.

7. An auxiliary device for installing a corner box for controlling the height of an Invar tube, characterized in that, It includes a ratchet wrench (5), a first clamp (4), a second clamp (8), and a telescopic ruler (10). The ratchet wrench (5) includes a ratchet handle (51), a ball joint (52) fixed to one end of the ratchet handle (51), and a screw (53). The ball joint (52) and the screw (53) are both located on a straight line perpendicular to the axis of the ratchet handle (51). The first clamp (4) is threaded onto the screw (53), and the second clamp (8) is rotatably connected to the ball joint (52). The telescopic ruler (10) is fixed to the other end of the ratchet handle (51). The thickness of the first clamp (4) and the second clamp (8) is 60mm.

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