CN121822759A - An installation method for SUPER+ secondary connectors on LNG carriers - Google Patents
An installation method for SUPER+ secondary connectors on LNG carriersInfo
- Publication number
- CN121822759A CN121822759A CN202610253586.5A CN202610253586A CN121822759A CN 121822759 A CN121822759 A CN 121822759A CN 202610253586 A CN202610253586 A CN 202610253586A CN 121822759 A CN121822759 A CN 121822759A
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- Prior art keywords
- connector
- mounting plate
- nut
- wedge block
- super
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Abstract
本发明公开了一种用于LNG船SUPER+次层连接件的安装方法，该方法具体包括如下步骤：S1，将次层连接件安装在相邻次层绝缘箱之间，将相邻次层绝缘箱连接；S2，再次层连接件上安装组装好的门型楔块体结构，并将门型楔块体中部开孔与次层连接件中部对齐；S3，将辅助安装装置安装到门型楔块体结构中部开孔中，并与次层连接件中的连接杆螺纹连接固定；S4，通过旋拧辅助安装装置将门型楔块体结构向下移动，完成门型楔块体结构的安装。本发明通过辅助装置的设置，避免调节螺栓的旋入受到弹簧弹力的影响，降低了调节螺栓的安装。
This invention discloses an installation method for a SUPER+ secondary layer connector on an LNG carrier. The method specifically includes the following steps: S1, installing the secondary layer connector between adjacent secondary layer insulation boxes and connecting the adjacent secondary layer insulation boxes; S2, installing the assembled portal wedge structure on the secondary layer connector and aligning the central opening of the portal wedge with the central part of the secondary layer connector; S3, installing an auxiliary installation device into the central opening of the portal wedge structure and threadedly connecting it to the connecting rod in the secondary layer connector; S4, moving the portal wedge structure downwards by tightening the auxiliary installation device to complete the installation of the portal wedge structure. This invention, through the auxiliary device, avoids the influence of spring force on the screwing in of the adjusting bolt, thus reducing the installation difficulty of the adjusting bolt.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a mounting method for a SUPER+sublayer connecting piece of an LNG ship.
Background
The No96 super+ film type containment system of the LNG ship is upgraded on the basis of the original L03+, and particularly comprises a secondary insulating layer and a main insulating layer. Wherein the connection of the sub-layer insulation is greatly modified in the final form of the sub-layer insulation integrity stage. The original door-shaped wedge block, the upper mounting plate and the adjusting bolt are mounted in a height adjusting mode by using resin or wood veneer, so that the requirement of mounting precision is met. The structure at present is changed into a special type of door-shaped wedge block, a gasket, a spring, an upper mounting plate, an adjusting bolt and an anti-rotation gasket. The structure is characterized in that the height is reduced on the basis of an original door-shaped wedge block, holes of an original adjusting bolt of the door-shaped wedge block are enlarged and placed in a spring, and an upper mounting plate is finally connected with a lower mounting plate which is mounted in a previous stage by using the adjusting bolt in a threaded manner. The height of the structure is controlled by extruding the spring, so that the accuracy requirement on the installation height is met.
But during construction it was found that the two springs under the upper mounting plate had a design pressure of 5 tons. If the components of the door type wedge block are pre-assembled and then are directly screwed into the adjusting bolt for installation, the tension between the adjusting bolt and the lower mounting plate is found to be too large, so that the condition of sliding wires frequently and easily occurs at the threaded connection part. This results in damage to the threads at the lower mounting plate and the adjusting bolt, resulting in replacement of most of the components on the connection. This process creates a significant waste of material and personnel man-hours.
Disclosure of Invention
The present invention has been made to overcome the above-mentioned disadvantages of the prior art, and an object of the present invention is to provide a method for installing a SUPER + sub-layer connection for an LNG ship, according to the invention, through the arrangement of the auxiliary device, the influence of the elastic force of the spring on the screwing-in of the adjusting bolt is avoided, and the installation of the adjusting bolt is reduced.
In order to achieve the above object, the present invention provides the following technical solutions:
The installation method for the SUPER+ sublayer connecting piece of the LNG ship specifically comprises the following steps:
s1, installing a sub-layer connecting piece between adjacent sub-layer insulating boxes, and connecting the adjacent sub-layer insulating boxes;
s2, installing the assembled door-shaped wedge block structure on the secondary layer connecting piece, and aligning the open hole in the middle of the door-shaped wedge block with the middle of the secondary layer connecting piece;
S3, installing the auxiliary installation device into the opening in the middle of the door-shaped wedge block body structure, and connecting and fixing the auxiliary installation device with a connecting rod in the secondary layer connecting piece in a threaded manner;
s4, the door-shaped wedge block structure is moved downwards through the screwing auxiliary installation device, and the installation of the door-shaped wedge block structure is completed.
Further, the sublayer connecting piece comprises a lower mounting plate, a spring gasket, a nut, a locking plate and a connecting rod, wherein the connecting rod is penetrated in the middle of the lower mounting plate, and the spring gasket, the nut and the locking plate are sequentially arranged on the connecting rod at the upper end of the lower mounting plate.
Further, the door-shaped wedge block structure comprises a door-shaped wedge block, a gasket, a spring, an upper mounting plate, anti-rotation gaskets and an adjusting bolt, wherein the gasket is arranged in the door-shaped wedge block, the spring is mounted at the upper part of the gasket, the upper mounting plate is mounted at the upper end of the spring, the adjusting bolts are mounted at two sides of the upper mounting plate, the adjusting bolt penetrates through the door-shaped wedge block, the anti-rotation gaskets are arranged on the door-shaped wedge block at the side face of the upper part of the adjusting bolt, and the middle opening of the upper mounting plate is aligned with the middle opening of the door-shaped wedge block.
Further, auxiliary installation device includes connecting piece, clamp plate, first nut and second nut, connecting piece lower extreme passes door-type voussoir middle part trompil and connecting rod upper end threaded connection, connecting piece upper portion installation clamp plate and first nut, clamp plate and last mounting panel connection, first nut and connecting piece threaded connection, the second nut is revolved and is screwed and is welded fixedly after the connecting piece upper end fully.
Further, the whole cylinder that is of connecting piece, connecting piece upper portion is the external screw thread, connecting piece lower part hollow setting is provided with the internal screw thread in the hollow inside, and the connecting piece external diameter at external screw thread place is greater than the external diameter at internal screw thread place connecting piece.
The auxiliary installation device is used for installing the door-shaped wedge block, and specifically comprises the steps of fixing the lower end of the connecting piece with the connecting rod through screwing a second nut on the connecting piece, screwing a first nut to enable the first nut to move downwards, enabling the first nut to drive the upper installation plate to move downwards through the pressing plate until the layer difference between the surface of the upper installation plate of the door-shaped wedge block and the adjacent insulation box meets the requirement, stopping screwing the first nut, screwing an adjusting bolt of the upper installation plate into a threaded structure of the lower installation plate, and enabling the upper installation plate to be connected with the lower installation plate.
Further, the level difference range between the upper mounting plate surface of the wedge block and the upper surface of the adjacent insulation box is +/-0.5 mm.
Based on the technical scheme, the installation method for the SUPER+sublayer connecting piece of the LNG ship has the following technical advantages through practical application:
1. According to the installation method for the SUPER+ sublayer connecting piece of the LNG ship, provided by the invention, the influence of the elastic force of the spring on the screwing of the adjusting bolt is avoided through the arrangement of the auxiliary device, and the installation of the adjusting bolt is reduced.
2. The installation method for the SUPER+ sub-layer connecting piece of the LNG ship provided by the invention has the advantages that the influence of spring force on the screwing of the adjusting bolt is avoided through the arrangement of the auxiliary device, the installation of the adjusting bolt is reduced, the damage to the connecting piece parts caused by the damage to the threaded connection due to the tensile force generated by the spring force in the direct installation process of the adjusting bolt is directly reduced, particularly the damage and replacement of a door-shaped wedge block even the whole sub-layer connecting piece are avoided because the adjusting bolt is blocked with the threaded hole of the lower mounting plate or the adjusting bolt is broken in the threaded hole of the lower mounting plate.
Drawings
Fig. 1 is a construction diagram of a connector used in an installation method of a SUPER + sub-layer connector of an LNG ship.
Fig. 2 is a view showing a structure of a door-type wedge block used in an installation method of a SUPER + sub-layer connector of an LNG ship.
Fig. 3 is a structural view of an auxiliary device used in an installation method of a SUPER + sub-layer connection of an LNG ship.
Fig. 4 is a schematic diagram of a connector installation flow in an installation method for a SUPER + sub-layer connector of an LNG ship.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the following is illustrated by the accompanying drawings
The specific examples shown in (c) illustrate the invention. It is to be understood that this description is merely exemplary
And are not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
Embodiment 1, as shown in fig. 1 to 4, a method for installing a super+sub-layer connection for an LNG ship, the method comprising the steps of:
S1, installing a sub-layer connecting piece between adjacent sub-layer insulating boxes 6, and connecting the adjacent sub-layer insulating boxes 6;
s2, installing the assembled door-shaped wedge block structure on the secondary layer connecting piece, and aligning the open hole in the middle of the door-shaped wedge block with the middle of the secondary layer connecting piece;
S3, installing the auxiliary installation device into the opening in the middle of the door-shaped wedge block body structure, and connecting and fixing the auxiliary installation device with a connecting rod in the secondary layer connecting piece in a threaded manner;
s4, the door-shaped wedge block structure is moved downwards through the screwing auxiliary installation device, and the installation of the door-shaped wedge block structure is completed.
The secondary layer connecting piece comprises a lower mounting plate 1, a spring gasket 2, a nut 3, a locking plate 4 and a connecting rod 5, wherein the connecting rod 5 is penetrated in the middle of the lower mounting plate 1, and the spring gasket 2, the nut 3 and the locking plate 4 are sequentially installed on the connecting rod 5 at the upper end of the lower mounting plate 1.
The door-shaped wedge block structure comprises a door-shaped wedge block 71, a gasket 72, a spring 73, an upper mounting plate 75, an anti-rotation gasket 74 and an adjusting bolt 76, wherein the gasket 72 is arranged in the door-shaped wedge block 71, the spring 73 is arranged on the upper portion of the gasket 72, the upper mounting plate 75 is arranged at the upper end of the spring 73, the adjusting bolts 76 are arranged on two sides of the upper mounting plate 75, the adjusting bolts 76 penetrate through the door-shaped wedge block 71, the anti-rotation gasket 74 is arranged on the door-shaped wedge block 71 on the side face of the upper portion of the adjusting bolt 76, and a hole in the middle of the upper mounting plate 75 is aligned with a hole in the middle of the door-shaped wedge block 71.
The auxiliary mounting device comprises a connecting piece 81, a pressing plate 82, a first nut 83 and a second nut 84, wherein the lower end of the connecting piece 81 penetrates through a hole in the middle of the door-shaped wedge 71 to be in threaded connection with the upper end of the connecting rod 5, the pressing plate 82 and the first nut 83 are mounted on the upper portion of the connecting piece 81, the pressing plate 82 is connected with the upper mounting plate 75, the first nut 83 is in threaded connection with the connecting piece 81, and the second nut 84 is screwed on the upper end of the connecting piece 81 and then is fixed in a full-welded mode.
The connecting piece 81 is integrally cylindrical, the upper portion of the connecting piece 81 is provided with external threads, the lower portion of the connecting piece 81 is hollow, internal threads are arranged in the hollow, and the outer diameter of the connecting piece 81 where the external threads are located is larger than the outer diameter of the connecting piece 81 where the internal threads are located.
The auxiliary installation device is used for installing the door-shaped wedge block 71, specifically, the lower end of the connecting piece 81 is fixedly connected with the connecting rod 5 through screwing a second nut 84 on the connecting piece 81, then screwing a first nut 83, enabling the first nut 83 to move downwards, enabling the first nut 83 to drive the upper installation plate 75 to move downwards through the pressing plate 82 until the layer difference between the surface of the upper installation plate 75 of the door-shaped wedge block body and an adjacent insulation box meets the requirement, stopping screwing the first nut 83, and screwing an adjusting bolt 76 of the upper installation plate 75 into a threaded structure of the lower installation plate 1, so that the upper installation plate 75 is connected with the lower installation plate 1.
The level difference between the surface of the upper mounting plate 75 of the wedge block and the upper surface of the adjacent insulation box is within + -0.5 mm.
The auxiliary mounting device structurally skillfully utilizes an opening reserved for mounting the main layer connecting piece by the upper mounting plate 75 in the door-shaped wedge block and the connecting rod 5 of the secondary layer connecting piece for threaded connection. And the nut in the upper half of the device can be threaded against the upper mounting plate 75 using the connection to provide tension to the connection so that the upper mounting plate 75 is forced downwardly to compress the spring 73 to the installed height. The final adjusting bolt 76 can be installed without being elastically stressed by the spring 73. The auxiliary mounting device effectively reduces the tension and the resistance of mounting the adjusting bolt 76, directly avoids the thread damage under the stress condition, and ensures that the adjusting bolt 76 and the lower mounting plate 1 are smooth in the thread connection process and are not influenced by the elasticity of the spring 73. The occurrence of thread damage and the need for replacement of the connector material due to direct installation of the adjusting bolt 76 is avoided.
It should be noted, finally, that the above-mentioned embodiments are only intended to illustrate the technical scheme of the present invention and not limit it, and that although the present invention has been described in detail with reference to the preferred embodiments, it is to be understood that the present invention is not limited thereto
It will be understood by those skilled in the art that the present invention may be modified or equivalents substituted for elements thereof without departing from the spirit of the invention, and it is intended to cover the scope of the invention as set forth in the claims.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202610253586.5A CN121822759A (en) | 2026-03-03 | 2026-03-03 | An installation method for SUPER+ secondary connectors on LNG carriers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202610253586.5A CN121822759A (en) | 2026-03-03 | 2026-03-03 | An installation method for SUPER+ secondary connectors on LNG carriers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN121822759A true CN121822759A (en) | 2026-04-10 |
Family
ID=99328815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202610253586.5A Pending CN121822759A (en) | 2026-03-03 | 2026-03-03 | An installation method for SUPER+ secondary connectors on LNG carriers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN121822759A (en) |
-
2026
- 2026-03-03 CN CN202610253586.5A patent/CN121822759A/en active Pending
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