Ship cable bracket mounting structure capable of preventing electrochemical corrosion

Abstract

The embodiment of the utility model provides a ship cable bracket mounting structure capable of preventing electrochemical corrosion, which comprises a steel cable bracket and titanium alloy supporting legs, and the two ends of the steel cable bracket are fixedly connected with the titanium alloy supporting legs fixed on a ship body through bolt assemblies. The steel cable bracket and the titanium alloy supporting leg are isolated and insulated through an insulating spacer, a screw of the bolt assembly is sleeved with an insulating sleeve and a rubber spacer, and the bolt assembly is isolated and insulated from the steel cable bracket and the titanium alloy supporting leg through the insulating sleeve and the rubber spacer. According to the embodiment of the utility model, physical isolation and insulation of the steel cable bracket and the titanium alloy supporting legs are realized through the insulating sleeves, the insulating gaskets and the rubber gaskets, so that direct contact of dissimilar metals is effectively prevented, electrochemical reaction caused by direct contact between the dissimilar metals is avoided, and the dissimilar metals are ensured to keep good performance states respectively; the integrity and the stability of a ship structure can be maintained, and the service life of the cable bracket is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to ship outfitting technical field especially a kind of ship cable bracket mounting structure of preventing electrochemical corrosion. BACKGROUND

[0002] Titanium alloy material has excellent strength, toughness, impact resistance, low density and the ability to resist seawater and marine atmospheric corrosion, and its application in ship structure is becoming more and more widespread. However, the material cost of titanium alloy is relatively high, and the processing and welding process is complex, resulting in high processing cost. In order to reduce the cost, steel outfitting parts can be used to replace part of the titanium alloy outfitting parts. For example, in the design of cable bracket, part of the titanium alloy outfitting parts is replaced by steel outfitting parts. However, if the two kinds of dissimilar metals are directly welded or connected, an electrochemical reaction will occur. Therefore, how to design a low-cost ship cable bracket mounting structure with electrochemical corrosion resistance on the titanium alloy structure outer plate of the ship body has become a technical problem to be solved. SUMMARY

[0003] In view of the above problems existing in the prior art, the utility model embodiment provides a ship cable bracket mounting structure for preventing electrochemical corrosion to solve the technical problems existing in the prior art.

[0004] The utility model embodiment provides a ship cable bracket mounting structure for preventing electrochemical corrosion, which comprises a steel cable bracket and a titanium alloy support leg. The steel cable bracket is connected and fixed to the titanium alloy support leg fixed on the ship body through a bolt assembly at both ends. The steel cable bracket and the titanium alloy support leg are insulated by an insulating gasket. An insulating sleeve and a rubber gasket are sleeved on the screw rod of the bolt assembly, and the insulating sleeve and the rubber gasket insulate the bolt assembly from the steel cable bracket and the titanium alloy support leg.

[0005] In an embodiment, the steel cable bracket comprises two groups of parallelly arranged bracket longitudinal beams. The two groups of bracket longitudinal beams are connected and fixed by a plurality of groups of bracket transverse beams arranged at intervals. A plurality of groups of bracket support legs are also fixed at intervals on the bracket longitudinal beams. The bracket support legs are perpendicular to the planes of the bracket longitudinal beams and the bracket transverse beams, and the bracket support legs and the titanium alloy support leg are connected and fixed by a bolt assembly.

[0006] In an embodiment, the bracket support legs and the titanium alloy support leg are connected and fixed by at least two groups of bolt assemblies.

[0007] In an embodiment, the insulating gasket is arranged along the overlapping area of the bracket support legs and the titanium alloy support leg.

[0008] In an embodiment, the top end height of the bracket support leg is lower than the top end height of the titanium alloy support leg.

[0009] In one embodiment, the insulating sleeve is made of polytetrafluoroethylene material and includes a sleeve body and a spacer flange integrally fixed to one end of the sleeve body.

[0010] In one embodiment, the bracket leg and the titanium alloy support leg are connected by a grounding assembly.

[0011] In one embodiment, the bolt assembly is made of stainless steel and includes a bolt, a nut, a spring washer, and a flat washer.

[0012] In one embodiment, the bracket longitudinal beam is made of steel pipe, and its two ends are closed by circular steel plates.

[0013] In one embodiment, the bracket beam is made of flat steel, and elongated holes are spaced apart on the beam.

[0014] Compared with the prior art, the beneficial effects of the electrochemical corrosion resistant ship cable tray installation structure provided by this utility model embodiment are as follows:

[0015] 1. This utility model embodiment achieves physical isolation and insulation between the steel cable tray and the titanium alloy support leg through insulating sleeves, insulating gaskets and rubber gaskets, effectively preventing direct contact between dissimilar metals, avoiding electrochemical reactions caused by direct contact between dissimilar metals, ensuring that dissimilar metals maintain their respective good performance state, helping to maintain the integrity and stability of the ship structure, and extending the service life of the cable tray.

[0016] 2. In this embodiment of the utility model, a steel cable tray is used to replace some of the titanium alloy outfitting parts, which reduces the amount of expensive titanium alloy used and achieves the purpose of reducing costs.

[0017] 3. The present invention has a simple structure, is easy to manufacture and connect, and is convenient to install, construct and maintain. Attached Figure Description

[0018] Figure 1 A three-dimensional schematic diagram of an electrochemical corrosion resistant marine cable tray installation structure provided for an embodiment of this utility model;

[0019] Figure 2 A cross-sectional schematic diagram of a ship cable tray installation structure for preventing electrochemical corrosion, provided for an embodiment of this utility model;

[0020] Figure 3 for Figure 2 Enlarged structural diagram of the bolt assembly;

[0021] Figure 4 A schematic diagram of an insulating sleeve involved in an electrochemical corrosion resistant marine cable tray installation structure provided for an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the grounding components involved in an electrochemical corrosion resistant marine cable tray installation structure provided for an embodiment of this utility model.

[0023] Figure label:

[0024] 1. Steel cable tray; 101. Tray leg; 102. Tray longitudinal beam; 103. Tray crossbeam; 104. Oblong hole; 2. Insulating gasket; 3. Titanium alloy support leg; 4. Bolt assembly; 401. Screw; 402. Nut; 403. Spring washer; 404. Flat washer; 5. Insulating sleeve; 501. Sleeve body; 502. Spacer flange; 6. Rubber gasket; 7. Grounding assembly; 701. Steel grounding bolt; 702. Steel-titanium composite grounding bolt; 703. Grounding wire. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Various embodiments and features of this application are described herein with reference to the accompanying drawings.

[0027] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0028] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0029] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0030] Specific embodiments of this application are described below with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to ascertain the true intent based on the user's historical operations, and to avoid unnecessary or redundant details that would obscure this application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use this application in various ways with substantially any suitable detailed structure.

[0031] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.

[0032] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are only for explaining this utility model and are not intended to limit the scope of this utility model. The following description, in conjunction with... Figures 1-5 The preferred embodiments of this utility model will be described in further detail below:

[0033] like Figures 1-3 As shown, this utility model embodiment provides a ship cable tray installation structure resistant to electrochemical corrosion, including: a steel cable tray 1 and a titanium alloy support leg 3. The two ends of the steel cable tray 1 are connected and fixed to the titanium alloy support leg 3 fixed on the hull by bolt assemblies 4. The steel cable tray 1 and the titanium alloy support leg 3 are isolated and insulated by an insulating gasket 2. An insulating sleeve 5 and a rubber gasket 6 are sleeved on the screw 401 of the bolt assembly 4, and the insulating sleeve 5 and the rubber gasket 6 isolate and insulate the bolt assembly 4 from the steel cable tray 1 and the titanium alloy support leg 3.

[0034] In one embodiment, the steel cable tray 1 includes two sets of parallel longitudinal beams 102, which are connected and fixed by several sets of spaced-apart cross beams 103. Several sets of bracket legs 101 are also fixed at intervals on the longitudinal beams 102. The bracket legs 101 are perpendicular to the plane of the longitudinal beams 102 and the cross beams 103, and the bracket legs 101 and the titanium alloy support legs 3 are connected and fixed by bolt assemblies 4. That is, the steel cable tray 1 adopts a partially prefabricated structure. During the installation stage, it is only necessary to connect the bracket legs 101 to the titanium alloy support legs 3 by bolt assemblies 4. Through the assembly concept, on-site hot work can be avoided, reducing the on-site assembly workload and installation difficulty. While ensuring construction quality, construction efficiency is greatly improved.

[0035] To ensure the structural stability of the steel cable tray 1, in one embodiment, the tray legs 101 and the titanium alloy support legs 3 are connected and fixed by at least two sets of bolt assemblies 4;

[0036] In one embodiment, the insulating pad 2 is arranged along the entire length of the overlapping area of ​​the bracket leg 101 and the titanium alloy support leg 3 to ensure the effectiveness of physical isolation between dissimilar metals.

[0037] In one embodiment, the top height of the bracket leg 101 is lower than the top height of the titanium alloy support leg 3 to ensure that the steel bracket leg 101 is isolated from the hull structure and to avoid electrochemical corrosion at this location.

[0038] In one embodiment, such as Figure 4 As shown, the insulating sleeve 5 is made of polytetrafluoroethylene material and includes a sleeve body 501 and a spacer flange 502 integrally fixed to one end of the sleeve body 501. The spacer flange 502 can enhance the positional stability of the insulating sleeve 5 on the one hand, and make its installation more convenient on the other hand. It can also work with the aramid rubber gasket 6 to ensure the purpose of insulation and isolation.

[0039] In one embodiment, such as Figure 5 As shown, the bracket leg 101 and the titanium alloy support leg 3 are connected by a grounding component 7. The grounding component 7 includes a steel-titanium composite grounding bolt 702 welded and fixed to one side of the titanium alloy support leg 3, a steel grounding bolt 701 welded and fixed to one side of the steel bracket leg 101, and a grounding wire connecting the steel grounding bolt 701 and the steel-titanium composite grounding bolt 702. When installing the grounding component 7, the grounding wire lug, flat washer, and spring washer at the end of the grounding wire 703 are stacked in sequence and aligned with the opening of the grounding post. Finally, the bolts are tightened. No paint or other debris is allowed to isolate the components in the middle to ensure full contact. The grounding component 7 ensures that the cables on the bracket and the surrounding conductors have the same potential, avoiding the phenomenon of potential difference and safety accidents caused by accidental damage to the outer layer of the cable.

[0040] In one embodiment, the bolt assembly 4 is made of stainless steel and includes a screw 401, a nut 402, a spring washer 403, and a flat washer 404. The stainless steel bolt assembly 4 has better corrosion resistance, ensuring the structural stability of the connection node during its service life. The spring washer 403 ensures that the connection node is in a compressed and fixed state. At the same time, when installing the bolt assembly 4, it is necessary to ensure that the thread behind the screw 401 is exposed by 2-3 threads to ensure the locking force and prevent the bolt from loosening.

[0041] In one embodiment, the bracket longitudinal beam 102 is made of steel pipe, with both ends closed by circular steel plates to ensure smooth ends, which serves to prevent cable cuts and prevent debris from entering. The bracket crossbeam 103 is made of flat steel, with elliptical oblong holes 104 spaced apart on its beam body, which facilitates cable binding and fixation and reduces overall weight. The bracket legs 101 are made of flat steel or angle steel. The bracket legs 101, bracket longitudinal beam 102 and bracket crossbeam 103 are welded together. All welded positions should be firm, and weld slag should be removed after welding at welded joints. The surface and punched holes should be flat, without sharp angles or burrs, and there should be no cracks at bends. All steel parts should be free of rust and oil stains and then coated with anti-rust paint.

[0042] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A ship cable tray installation structure resistant to electrochemical corrosion, characterized in that, include: A steel cable tray (1) and a titanium alloy support leg (3) are provided. The two ends of the steel cable tray (1) are connected and fixed to the titanium alloy support leg (3) fixed on the hull by bolt assembly (4). The steel cable tray (1) and the titanium alloy support leg (3) are isolated and insulated by insulating gasket (2). An insulating sleeve (5) and a rubber gasket (6) are provided on the screw (401) of the bolt assembly (4). The insulating sleeve (5) and the rubber gasket (6) isolate and insulate the bolt assembly (4) from the steel cable tray (1) and the titanium alloy support leg (3).

2. The electrochemical corrosion resistant marine cable tray installation structure according to claim 1, characterized in that: The steel cable tray (1) includes two sets of parallel longitudinal beams (102), which are connected and fixed by several sets of spaced cross beams (103). Several sets of bracket legs (101) are also fixed at intervals on the longitudinal beams (102). The bracket legs (101) are perpendicular to the plane of the longitudinal beams (102) and the cross beams (103), and the bracket legs (101) and the titanium alloy support legs (3) are connected and fixed by bolt assemblies (4).

3. The electrochemical corrosion resistant marine cable tray installation structure according to claim 2, characterized in that: The bracket leg (101) and the titanium alloy support leg (3) are connected and fixed by at least two sets of bolt assemblies (4).

4. The electrochemical corrosion resistant marine cable tray installation structure according to claim 2, characterized in that: The insulating pad (2) is laid along the entire length of the overlapping area of ​​the bracket leg (101) and the titanium alloy support leg (3).

5. The electrochemical corrosion resistant marine cable tray installation structure according to claim 2, characterized in that: The top height of the bracket leg (101) is lower than the top height of the titanium alloy support leg (3).

6. The electrochemical corrosion resistant marine cable tray installation structure according to claim 2, characterized in that: The insulating sleeve (5) is made of polytetrafluoroethylene material and includes a sleeve body (501) and a spacer flange (502) integrally fixed to one end of the sleeve body (501).

7. The electrochemical corrosion resistant marine cable tray installation structure according to claim 2, characterized in that: The bracket leg (101) and the titanium alloy support leg (3) are connected by a grounding component (7).

8. The electrochemical corrosion resistant marine cable tray installation structure according to claim 1, characterized in that: The bolt assembly (4) is made of stainless steel and includes a screw (401), a nut (402), a spring washer (403), and a flat washer (404).

9. The electrochemical corrosion resistant marine cable tray installation structure according to claim 2, characterized in that: The bracket longitudinal beam (102) is made of steel pipe, and its two ends are closed by circular steel plates.

10. The electrochemical corrosion resistant marine cable tray installation structure according to claim 2, characterized in that: The bracket beam (103) is made of flat steel, and elongated holes (104) are spaced apart on its beam.

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