Generator high-voltage cable inlet method

Abstract

The invention discloses a generator high-voltage cable incoming method, which comprises the following steps of: erecting a grating platform and a cable bracket on a cabin deck of a generator room, arranging an upper bracket body of the cable bracket into an inclined shape of which the angle is equal to that of an outlet of a generator high-voltage cable interface, and fixing a cable bracket of which the inclined shape is the same as that of the cable bracket on the cable bracket; by laying the high-voltage cable in the cable bracket, the generator high-voltage cable can be effectively prevented from being bent by 90 degrees in the laying process, the site construction difficulty and the construction amount are effectively reduced, the construction period is shortened, and perfect and smooth connection of the cable at the outlet of the generator high-voltage cable is ensured. In addition, after the high-voltage cable is laid and fixed in the cable bracket groove, the bracket cover plate is installed on the cable bracket to seal the cable in the cable bracket groove, so that the effect of protecting the high-voltage cable is achieved, and mechanical damage to the cable is prevented.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to a method for introducing a high-voltage cable into a generator. Background Technology

[0002] The laying of high-voltage cables for generators is a critical step in marine electrical installation, requiring strict adherence to safety, reliability, and explosion-proof requirements. Due to the relatively large diameter of generator high-voltage cables (typically between 55mm and 65mm), bending them during installation is difficult. Mechanical traction (traction force ≤ cable allowable tension, typically ≤ 5KN) combined with manual assistance is usually used to avoid sharp 90-degree bends. If this is unavoidable, the minimum bending radius must be ≥ 12 times the high-voltage cable diameter. Therefore, the high-voltage cables at the generator's high-voltage cable interface are difficult to bend and lack secure binding, increasing on-site construction difficulty and workload, and resulting in an unsightly high-voltage cable entry point. Summary of the Invention

[0003] In view of this, the present invention provides a method for laying high-voltage cables for generators to solve the problems of difficulty in laying high-voltage cables for generators and inconvenience in construction.

[0004] A method for introducing a high-voltage cable into a generator specifically includes the following steps:

[0005] S1, a grid platform and cable supports are erected on the engine room deck of the generator room, and cable brackets are fixed on the cable supports along the cable supports.

[0006] The grid platform is located on one side of the generator. A notch is provided on the grid platform at the position opposite to the generator high-voltage cable interface. The cable bracket is located at the notch and its bottom is fixed to the engine room deck, and its upper end is fixed to the edge of the platform at the notch.

[0007] The upper frame of the cable bracket is inclined upwards at an angle equal to the outlet angle of the generator high-voltage cable interface, and the shape of the cable bracket is the same as that of the cable bracket.

[0008] A cable tray is formed inside the cable bracket;

[0009] S2, the high-voltage cable extending from the generator high-voltage cable interface is laid in the cable tray of the cable bracket and secured with cable ties;

[0010] S3, Install a cable tray cover on the cable tray to seal the cable within the cable tray groove.

[0011] Preferably, the cable support includes two vertically arranged first pillars and multiple guide plates fixed between the two first pillars along the length of the first pillars. Each first pillar has a support foot fixed to its bottom by bolts. Each first pillar has a second pillar that is inclined upwards towards the generator at its upper end. The inclination angle of the second pillar is equal to the outlet angle of the generator high-voltage cable interface. Each guide plate has multiple first bracket fixing holes for fixing the cable bracket.

[0012] Preferably, the second support is connected to the first support via a connecting bend.

[0013] Preferably, the top of the second pillar is provided with a sealing plate.

[0014] Preferably, the cable tray has a U-shaped cross-section, with the U-shaped groove serving as a cable tray groove. The bottom plate of the cable tray groove is provided with multiple second tray fixing holes aligned with the first tray fixing holes and multiple binding holes for passing through the binding straps so that the binding straps can be tied to the guide plate.

[0015] Preferably, the bottom plate of the cable tray is provided with multiple rows of second bracket fixing holes and binding holes along its length direction. The second bracket fixing holes and binding holes are staggered vertically, or the second bracket fixing holes and binding holes are arranged on a horizontal line.

[0016] Preferably, the grid platform includes a grid plate and multiple grid columns vertically fixed to the bottom of the grid plate.

[0017] Preferably, the grid platform and cable support are both made of carbon steel, and the cable tray is made of stainless steel.

[0018] The beneficial effects of this invention are:

[0019] This invention constructs a grid platform and cable support on the engine deck of the generator room. The upper frame of the cable support 2 is set at an angle equal to the outlet angle of the generator high-voltage cable interface. A cable bracket with the same bending shape is fixed on the cable support. By laying the cable in the cable bracket, the 90-degree sharp bend of the generator high-voltage cable can be effectively avoided during the laying process. This effectively reduces the on-site construction difficulty and workload, shortens the construction cycle, and ensures a perfect and smooth connection of the cable at the outlet of the generator high-voltage cable. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a front view structural diagram of the present invention.

[0022] Figure 2 This is a side view structural diagram of the present invention.

[0023] Figure 3 This is a structural diagram of a cable support.

[0024] The meanings of the labels in the diagram are as follows:

[0025] 1 represents the grating platform, 11 represents the grating panel, and 12 represents the grating column.

[0026] 2 is the cable bracket, 21 is the first support column, 22 is the support foot, 23 is the second support column, 24 is the guide plate, 25 is the first bracket fixing hole, 26 is the connecting bend, and 27 is the sealing plate.

[0027] 3 is a cable tray.

[0028] 4 is the generator high-voltage cable interface.

[0029] 5 represents a high-voltage cable. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] It should be understood that although the terms "first," "second," 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 only used 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] This invention provides a method for introducing a high-voltage cable into a generator, specifically including the following steps:

[0037] S1, erect a grid platform 1 and a cable support 2 on the engine deck of the generator room, and fix a cable bracket 3 on the cable support 2 along the cable support 2.

[0038] The grid platform 1 is located on one side of the generator. A notch is provided on the grid platform 1 at the position opposite to the generator high-voltage cable interface 4. The cable bracket 2 is located at the notch and its bottom is fixed to the engine room deck, and its upper end is fixed to the edge of the platform at the notch.

[0039] The upper frame of the cable bracket 2 is inclined upwards at an angle equal to the outlet angle of the generator high-voltage cable interface. The shape of the cable tray 3 is the same as that of the cable bracket 2, and a cable tray groove is formed inside the cable tray 3.

[0040] Specifically, the grating platform 1 includes a grating plate 11 and multiple grating columns 12 vertically fixed to the bottom of the grating plate 11. The grating plate 11 has a notch at the position opposite to the generator high-voltage cable interface. The grating columns 2 are used to support the grating plate 11 above the engine room deck. In this embodiment, the grating plate 11 is 2.2m away from the engine room deck; the grating columns 2 are made of round steel pipes.

[0041] The cable support 2 includes two vertically arranged first pillars 21 and multiple guide plates 24 fixed between the two first pillars 21 along the length of the first pillars 21. Each first pillar 21 has a support foot 22 fixed to its bottom by bolts, and each first pillar 21 has a second pillar 23 that is inclined upward toward the generator. The inclination angle of the second pillar 23 is equal to the outlet angle of the generator high-voltage cable interface.

[0042] The plurality of guide plates 24 are distributed at equal intervals along the length of the first support column 21, and each guide plate 24 is provided with a plurality of first bracket fixing holes 25 for fixing the cable bracket 3.

[0043] In a preferred embodiment, the second support 23 is connected to the first support 21 by a connecting bend 26. The first support 21 and the connecting bend 26, as well as the connecting bend 26 and the second support 23, can be fixed by welding or by fasteners such as bolts. The bending angle of the connecting bend 26 should be consistent with the outlet angle of the generator high-voltage cable interface.

[0044] In a preferred embodiment, the top of the second support 23 is provided with a sealing plate 27 to prevent water seepage.

[0045] The cable tray 3 has a U-shaped cross-section, with its U-shaped groove serving as a cable tray. The bottom plate of the cable tray has multiple second tray fixing holes aligned with the first tray fixing holes 25, and multiple binding holes for cable ties to pass through and be secured to the guide plate 24. Multiple rows of second tray fixing holes and binding holes are arranged along the length of the bottom plate of the cable tray. These second tray fixing holes and binding holes are staggered vertically or arranged on a horizontal line.

[0046] When installing the above-mentioned grid platform 1, cable bracket 2 and cable tray 3, first fix multiple grid columns 12 vertically on the engine deck of the generator room, and then fix the grid plate 11 on the multiple grid columns 12. When installing the grid plate 11, its notch should be aligned with the generator high-voltage cable interface.

[0047] Then, the assembled cable bracket 2 is placed at the opening of the grating plate 11, the support foot 22 of the cable bracket 2 is fixed to the engine room deck of the generator room, and the upper part of the second column 23 of the cable bracket 2 is placed against the opening and fixed to the grating plate with bolts or other fasteners.

[0048] Then, place the cable tray 3 against the guide plate 24 of the cable bracket 2, align the second bracket fixing hole on the cable tray 3 with the first bracket fixing hole 25 on the cable bracket 2, insert the bolts into the first bracket fixing hole 25 and the second bracket fixing hole, and lock the cable tray 3 and the cable bracket 2 together.

[0049] S2, the high-voltage cable 5 extending from the generator high-voltage cable interface is laid in the cable tray of the cable bracket 3 and secured with cable ties.

[0050] When using cable ties to bind high-voltage cables, the cable ties are passed through the binding holes of the cable tray 3 and tied to the guide plate 24 of the cable support 2, thereby securing the high-voltage cable 5 firmly.

[0051] S3, Install a bracket cover plate on the cable tray 3 to seal the cable in the cable tray groove.

[0052] In this embodiment, the grid platform 1 and the cable bracket 2 are both made of carbon steel, and the cable tray 3 is made of stainless steel.

[0053] 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 introducing a high-voltage cable into a generator, characterized in that, Specifically, the following steps are included: S1, a grid platform (1) and cable support (2) are erected on the engine room deck of the generator room, and cable brackets (3) are fixed on the cable support (2) along the cable support (2). The grid platform (1) is located on one side of the generator. A notch is provided on the grid platform (1) at the position opposite to the generator high-voltage cable interface. The cable bracket (2) is located at the notch and its bottom is fixed on the engine room deck and its upper end is fixed to the edge of the platform at the notch. The upper frame of the cable bracket (2) is inclined upward and its inclination angle is equal to the outlet angle of the generator high voltage cable interface. The shape of the cable bracket (3) is the same as that of the cable bracket (2). A cable tray is formed inside the cable tray (3); S2, the high-voltage cable extending from the generator high-voltage cable interface is laid in the cable tray of the cable bracket (3) and secured with cable ties; S3, Install a bracket cover plate on the cable tray (3) to seal the cable in the cable tray groove.

2. The generator high-voltage cable inlet method according to claim 1, characterized in that, The cable support (2) includes two vertically arranged first pillars (21) and multiple guide plates (24) fixed between the two first pillars (21) along the length of the first pillars (21). Each first pillar (21) has a support foot (22) fixed to its bottom by bolts. Each first pillar (21) has a second pillar (23) that is inclined upward toward the generator at its upper end. The inclination angle of the second pillar (23) is equal to the outlet angle of the generator high voltage cable interface. Each guide plate (24) has multiple first bracket fixing holes (25) for fixing the cable bracket (3).

3. The generator high-voltage cable inlet method according to claim 2, characterized in that, The second support (23) is connected to the first support (21) via a connecting bend (26).

4. The generator high-voltage cable inlet method according to claim 2, characterized in that, The top of the second pillar (23) is provided with a sealing plate (27).

5. The generator high-voltage cable inlet method according to claim 2, characterized in that, The cable tray (3) has a U-shaped cross section, and its U-shaped groove is a cable tray. The bottom plate of the cable tray has multiple second tray fixing holes that are aligned with the first tray fixing hole (25) and multiple binding holes for the cable tie to pass through so that the cable tie can be tied to the guide plate (24).

6. The generator high-voltage cable inlet method according to claim 4, characterized in that, The bottom plate of the cable tray is provided with multiple rows of second bracket fixing holes and binding holes along its length. The second bracket fixing holes and binding holes are staggered vertically or arranged on a horizontal line.

7. The generator high-voltage cable inlet method according to claim 1, characterized in that, The grid platform (1) includes a grid plate (11) and multiple grid columns (12) vertically fixed to the bottom of the grid plate (11).

8. The generator high-voltage cable inlet method according to claim 1, characterized in that, The grid platform (1) and cable bracket (2) are both made of carbon steel, and the cable tray (3) is made of stainless steel.

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