Offshore wind turbine generator air cooling heat dissipation cable protection cover structure

Abstract

The utility model discloses an air-cooled heat dissipation cable protection cover structure of an offshore wind turbine generator. The air-cooled heat dissipation cable protection cover structure comprises a connecting cover, a protection cover assembly and a protection cover body, one side of the connecting cover is connected with a wind turbine generator tower cable sealing piece, the other side of the connecting cover is connected with one end of the protective cover assembly and one end of the protective cover body, and the protective cover body is located below the protective cover assembly. The other end of the protective cover assembly and the other end of the protective cover body are connected with a flexible connector of the wind turbine generator electrical equipment container, and the protective cover body is communicated with the flexible connector and the connecting cover. A heat dissipation partition plate and cable supports are arranged in the protection cover body, the heat dissipation partition plate is vertically installed in the protection cover body, and the cable supports transversely penetrate through the heat dissipation partition plate and are connected with the inner walls of the two opposite sides of the protection cover body. Cooling circulation can be formed in the protective cover, heat dissipated by the cable is taken away, heat dissipation holes do not need to be formed, meanwhile, the sealing performance is guaranteed, the structure is simple, and cost is low.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine cable protection, and in particular to a protective cover structure for offshore wind turbine air-cooled heat dissipation cables. Background Technology

[0002] In existing offshore wind turbines, cables extend from inside the tower to the exposed offshore foundation platform. Exposure to harsh conditions such as sunlight and sea winds can lead to cable aging and damage, necessitating the addition of a protective cover. However, existing completely sealed covers cannot effectively dissipate the heat generated by the cables during operation, failing to meet heat dissipation requirements. Adding ventilation holes to the cover compromises airtightness. Therefore, there is an urgent need to design a wind-cooled cable protection cover structure for offshore wind turbines to address these technical challenges. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a protective cover structure for the air-cooled heat dissipation cable of an offshore wind turbine. By setting up a circulating air path in the cable protection cover, the cooling air from the air conditioner is used to heat the cable in the sealed protective cover to the outside, thereby eliminating the need to add heat dissipation holes and other equipment. This achieves both the required airtightness and heat dissipation of the cable at a lower cost.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows: a protective cover structure for offshore wind turbine air-cooled heat dissipation cables, comprising a connecting cover, a protective cover assembly, and a protective cover body; one side of the connecting cover is connected to the wind turbine tower cable seal, and the other side of the connecting cover is connected to one end of the protective cover assembly and the protective cover body, respectively; the protective cover body is located below the protective cover assembly, and the other end of the protective cover assembly and the protective cover body is connected to the flexible joint of the wind turbine electrical equipment container; the protective cover body is connected to the flexible joint and the connecting cover respectively; a heat dissipation baffle and a cable bracket are provided inside the protective cover body, the heat dissipation baffle is vertically installed inside the protective cover body, and the cable bracket has multiple transversely piercing the heat dissipation baffle and connected to the inner walls of the opposite sides of the protective cover body.

[0005] Furthermore, the protective cover assembly includes a first protective cover and a second protective cover. One end of the first protective cover is connected to the connecting cover, and the other end of the first protective cover is connected to the second protective cover. The bottom of the first protective cover and the second protective cover are connected to the top of the protective cover body.

[0006] Furthermore, the connecting cover, the first protective cover, the second protective cover, and the protective cover are all connected by flanges and bolts, and rubber gaskets are provided between each flange.

[0007] Furthermore, the outer side of the protective cover is provided with support legs.

[0008] Furthermore, a sealing strip is provided in the gap between the heat dissipation baffle and the cable bracket.

[0009] Furthermore, both the first and second protective covers are equipped with handles on their outer sides.

[0010] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0011] This utility model features an air duct structure that utilizes the cool air from the air conditioner inside the electrical equipment container to form a cooling cycle within the protective cover, carrying away the heat emitted by the cables. This eliminates the need for ventilation holes, preventing external environmental factors from causing aging and damage to the cables. It solves the heat dissipation problem of the cables while ensuring airtightness, and the structure is simple and low-cost. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the connecting cover.

[0014] Figure 3 This is a schematic diagram of the structure of the first protective cover.

[0015] Figure 4 This is a schematic diagram of the second protective cover.

[0016] Figure 5 A schematic diagram of the protective cover. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments.

[0018] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0019] See Figures 1 to 5 As shown, the structure of the protective cover for the offshore wind turbine air-cooled heat dissipation cable provided in this embodiment includes a connecting cover 1, a first protective cover 2, a second protective cover 3, and a protective cover body 4.

[0020] One side of the connecting cover 1 is connected to the wind turbine tower cable seal via flange 8 and bolts. The other side of the connecting cover 1 is connected to one end of the first protective cover 2 and the protective cover 4 via flange 8 and bolts. The other end of the first protective cover 2 is connected to the second protective cover 3 via flange 8 and bolts. The protective cover 4 is located below the first protective cover 2 and the second protective cover 3 and is connected to the bottom of the first protective cover 2 and the second protective cover 3 via flange 8 and bolts. The other end of the second protective cover 3 and the protective cover 4 is connected to the flexible joint of the wind turbine electrical equipment container via flange 8 and bolts. The protective cover 4 is connected to the flexible joint and the connecting cover 1 respectively. Rubber gaskets are provided between the flanges 8 of each connecting component to ensure sealing.

[0021] The protective cover 4 is equipped with a heat dissipation baffle 5 and a cable bracket 6. The heat dissipation baffle 5 is vertically installed inside the protective cover 4 to divide the interior of the protective cover 4 into two independent spaces. The cable bracket 6 has multiple cross-sections that pass through the heat dissipation baffle 5 and are connected to the inner walls of the opposite sides of the protective cover 4 to support cables. The gap between the heat dissipation baffle 5 and the cable bracket 6 is equipped with a sealing strip to ensure the airtightness between the two independent spaces. The outer side of the protective cover 4 is equipped with support legs 7 to fix the protective cover 4 to the offshore foundation platform.

[0022] The cable passes through a cable seal located on the wall of the wind turbine tower, exits into the protective cover 4, lies flat on the cable support 6, and then connects to the various electrical devices inside the wind turbine electrical equipment container. The electrical equipment container is equipped with a refrigeration air conditioner. The cold air from the air conditioner enters the space on one side of the protective cover 4 through the air duct inside the container and the flexible joint. Since the cold air cannot pass through the cable seal on one side of the connecting cover 1, it turns around and returns to the container through the space on the other side of the protective cover 4. During this process, the cold air from the air conditioner heats up through heat conduction, taking away the heat emitted by the cable and turning into hot air. After returning to the electrical equipment container, it is carried into the external space by the container's air conditioner, forming a heat dissipation cycle. This ensures the heat dissipation of the cable inside the protective cover and ensures the normal operating temperature of the cable.

[0023] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all changes made in accordance with the shape and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A protective cover structure for air-cooled heat dissipation cables of offshore wind turbines, characterized in that: The system includes a connecting cover, a protective cover assembly, and a protective cover body. One side of the connecting cover is connected to the cable seal of the wind turbine tower, and the other side of the connecting cover is connected to one end of the protective cover assembly and the protective cover body. The protective cover body is located below the protective cover assembly. The other end of the protective cover assembly and the protective cover body is connected to the flexible joint of the wind turbine electrical equipment container. The protective cover body is in communication with both the flexible joint and the connecting cover. A heat dissipation baffle and a cable bracket are installed inside the protective cover body. The heat dissipation baffle is vertically installed inside the protective cover body, and the cable bracket has multiple cross-sections that pass through the heat dissipation baffle and are connected to the inner walls of the opposite sides of the protective cover body.

2. The protective cover structure for the air-cooled heat dissipation cable of an offshore wind turbine as described in claim 1, characterized in that: The protective cover assembly includes a first protective cover and a second protective cover. One end of the first protective cover is connected to the connecting cover, and the other end of the first protective cover is connected to the second protective cover. The bottom of the first protective cover and the second protective cover are connected to the top of the protective cover body.

3. The protective cover structure for the air-cooled heat dissipation cable of an offshore wind turbine as described in claim 1 or 2, characterized in that: The connecting cover, the first protective cover, the second protective cover, and the protective cover are all connected by flanges and bolts, and each flange is provided with a rubber gasket.

4. The protective cover structure for the air-cooled heat dissipation cable of an offshore wind turbine as described in claim 1, characterized in that: The protective cover is equipped with support legs on its outer side.

5. The protective cover structure for the air-cooled heat dissipation cable of an offshore wind turbine as described in claim 1, characterized in that: The gap between the heat dissipation baffle and the cable bracket is provided with a sealing strip.

6. The protective cover structure for the air-cooled heat dissipation cable of an offshore wind turbine as described in claim 2, characterized in that: Both the first and second protective covers have handles on their outer sides.

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