Novel marine expansion joint fixing support
By adopting the design of arc-shaped web and waist-round holes in the marine expansion joint fixing bracket, the problem of weld cracking at the expansion joint in the ship is solved, and effective protection and maintenance convenience of the pipe wall is achieved.
Patent Information
- Application Number
- CN202421050640.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-15
AI Technical Summary
In ships, the welds connected to the pipe at the expansion joint are prone to cracking, resulting in damage to the pipe wall, especially in the middle areas where the hull is deformed more.
A new marine expansion joint fixing bracket was designed, adopting a structure of arcuate webs and lumbar round holes. The arcuate webs can protect the pipe wall when the weld is damaged, and the lumbar round holes allow the pipe to have vertical displacement when bent.
It effectively solves the problem of weld cracking of the fixed bracket at the expansion joint and the pipe, reduces substantial damage to the pipe wall, and improves the convenience of maintenance.
Smart Images
Figure CN222596983U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shipbuilding, in particular to a novel marine expansion joint fixing bracket. Background Art
[0002] When the pipeline is heated, its length and diameter increase in direct proportion to the size of the pipeline and the linear expansion coefficient of the pipe material. When the linear length of the pipeline is large, the elongation caused by thermal expansion will reach a large value. Therefore, when designing the pipeline, its length change must be taken into account.
[0003] The ballast pipes, bilge water pipes and fire-fighting pipes arranged in the cargo hold area of the ship are arranged in a straight line for a long time. According to the calculation of the expansion and contraction amount of the expansion joint, an expansion joint is usually set every 20 to 30 meters. The bracket of the fixed bracket is directly welded to the pipe. In the delivered ships, the welds connecting the fixed bracket and the pipe at the expansion joint are cracked. Moreover, the brackets with problems are all in the middle of the ship, and the pipelines are arranged along the length of the ship. Therefore, it is inferred that the deformation of the hull is large here. Since the pipes are connected to the structure through brackets, the expansion joints cannot compensate for the deformation in the pipeline direction. All forces are borne by the fixed brackets. Once the bearing capacity of the weld is exceeded, it will cause damage. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a novel marine expansion joint fixing bracket. The use of the arc-shaped web ensures that even if the weld is damaged, no substantial damage will be caused to the pipe wall, which is conducive to later maintenance; at the same time, the bolt hole of one of the thrust blocks is a waist-round hole, allowing the pipe to have a certain displacement in the vertical direction when bending.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A novel marine expansion joint fixing bracket comprises a supporting part and a positioning part, wherein the supporting part and the positioning part are detachably connected, the supporting part is fixedly connected to the hull structure, the positioning part comprises a fixed part thrust plate, a curved web and a fixed part support plate, one side surface of the fixed part support plate in the thickness direction is vertically fixedly connected to one side surface of the fixed part thrust plate in the length direction, and one side surface of the fixed part thrust plate away from the fixed part support plate is detachably connected to the supporting part; the curved web is arranged on the upper end surface of the fixed part support plate, the outer convex surface of the curved web is fixedly connected to the fixed part support plate, and the inner concave surface of the curved web is tightly arranged against the outer side wall of the pipeline.
[0007] Furthermore, the support part includes a support plate and a support part thrust plate, the support part thrust plate and the fixed part thrust plate are stacked, and the support part thrust plate and the fixed part thrust plate are detachably connected; the support plate is arranged on a side of the support part thrust plate away from the fixed part thrust plate, and is arranged perpendicular to the support part thrust plate.
[0008] Furthermore, the support plate coincides with the longitudinal center plane of the fixing portion support plate.
[0009] Furthermore, a plurality of bolt holes are relatively opened on the thrust plate of the support part and the thrust plate of the fixing part, and the fixing part and the support part are detachably connected by bolts passing through the bolt holes.
[0010] Furthermore, the bolt holes on the thrust plate of the fixing portion are oval holes vertically arranged in the length direction.
[0011] Furthermore, the number of the bolt holes on the thrust plate of the support portion is 4, and two of the bolt holes are arranged in a group with an interval up and down.
[0012] Furthermore, the upper end surfaces of the support plate, the support portion thrust plate and the fixed portion thrust plate are located in the same horizontal plane.
[0013] The new marine expansion joint fixing bracket of the utility model solves the problem of cracking of the weld connecting the fixing bracket and the pipe at the expansion joint, and has achieved very good results in actual use of new ships. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional diagram of the novel marine expansion joint fixing bracket described in the utility model;
[0015] Figure 2 It is a left view of the novel marine expansion joint fixing bracket described in the utility model;
[0016] Figure 3 It is a front view of the thrust plate of the fixed part described in the utility model.
[0017] Among them, 1-fixed part thrust plate, 2-arc-shaped web plate, 3-fixed part support plate, 4-support plate, 5-support part thrust plate. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] like Figure 1As shown, a new type of marine expansion joint fixing bracket comprises a supporting part and a positioning part, wherein the supporting part and the positioning part are detachably connected, the supporting part is fixedly connected to the hull structure, the positioning part comprises a fixed part thrust plate 1, an arcuate web 2 and a fixed part support plate 3, one side surface of the fixed part support plate 1 in the thickness direction is vertically fixedly connected to one side surface of the fixed part thrust plate 1 in the length direction, the supporting part comprises a supporting plate 4 and a supporting part thrust plate 5, the supporting part thrust plate 5 is overlapped with the fixed part thrust plate 1, and the supporting part thrust plate 5 is detachably connected to the fixed part thrust plate 1; the supporting plate 4 is arranged on a side of the supporting part thrust plate 5 away from the fixed part thrust plate 1, and is arranged vertically with the supporting part thrust plate 5; the supporting plate 4 coincides with the longitudinal center plane of the fixed part support plate 3; the arcuate web 2 is arranged on the upper end surface of the fixed part support plate 1, the outer convex surface of the arcuate web 2 is fixedly connected to the fixed part support plate 3, and the inner concave surface of the arcuate web 2 is tightly arranged against the outer side wall of the pipeline.
[0020] A plurality of bolt holes are relatively opened on the support part thrust plate 5 and the fixed part thrust plate 1. The number of bolt holes on the support part thrust plate 5 is 4, which are arranged in groups of two and spaced apart from each other. The bolt holes on the fixed part thrust plate 1 are waist-shaped holes vertically arranged in the length direction. The fixed part and the support part are detachably connected by bolts passing through the bolt holes.
[0021] The upper end surfaces of the support plate 4 , the support portion thrust plate 5 and the fixed portion thrust plate 1 are located in the same horizontal plane.
[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A new type of marine expansion joint fixing bracket, characterized in that: It includes a supporting part and a positioning part, the supporting part and the positioning part are detachably connected, the supporting part is fixedly connected to the hull structure, the positioning part includes a fixed part thrust plate, a curved web and a fixed part support plate, one side surface of the fixed part support plate in the thickness direction is vertically fixedly connected to one side surface of the fixed part thrust plate in the length direction, and one side surface of the fixed part thrust plate away from the fixed part support plate is detachably connected to the supporting part; the curved web is arranged on the upper end surface of the fixed part support plate, the outer convex surface of the curved web is fixedly connected to the fixed part support plate, and the inner concave surface of the curved web is tightly arranged against the outer side wall of the pipeline.
2. A novel marine expansion joint fixing bracket according to claim 1, characterized in that: The support part includes a support plate and a support part thrust plate, the support part thrust plate is stacked with the fixed part thrust plate, and the support part thrust plate and the fixed part thrust plate are detachably connected; the support plate is arranged on a side of the support part thrust plate away from the fixed part thrust plate, and is arranged perpendicular to the support part thrust plate.
3. A novel marine expansion joint fixing bracket according to claim 2, characterized in that: The support plate coincides with the longitudinal center plane of the support plate of the fixing portion.
4. A novel marine expansion joint fixing bracket according to claim 3, characterized in that: A plurality of bolt holes are relatively opened on the support part thrust plate and the fixed part thrust plate, and the fixed part and the support part are detachably connected by bolts passing through the bolt holes.
5. A novel marine expansion joint fixing bracket according to claim 4, characterized in that: The bolt holes on the thrust plate of the fixing part are oval holes vertically arranged in the length direction.
6. A novel marine expansion joint fixing bracket according to claim 5, characterized in that: The number of bolt holes on the thrust plate of the support portion is 4, and two of the bolt holes are arranged in a group with an interval up and down.
7. A novel marine expansion joint fixing bracket according to claim 2, characterized in that: The upper end surfaces of the support plate, the support portion thrust plate and the fixed portion thrust plate are located in the same horizontal plane.