Prefabricated cabin for offshore boosting system

Abstract

The embodiment of the utility model discloses a prefabricated cabin for an offshore boosting system, which comprises a cabin body, a low-voltage chamber, a transformer chamber and a high-voltage chamber which are independent are sequentially arranged in the cabin body from front to back, and a low-voltage chamber door, a transformer chamber door and a high-voltage chamber door which respectively correspond to the low-voltage chamber, the transformer chamber and the high-voltage chamber are arranged on the front side of the cabin body. The low-voltage chamber, the transformer chamber and the high-voltage chamber are internally provided with a low-voltage cabinet, a transformer and a high-voltage cabinet respectively, the low-voltage cabinet, the transformer and the high-voltage cabinet are electrically connected through copper bars or cables, and the side face of the cabin body is provided with an access door used for entering the low-voltage chamber. According to the utility model, the layout design is reasonable, the structure shaped like the Chinese character'mu 'is used, the space is reasonably distributed, the usage amount of cables and copper plates is saved, and the construction cost is reduced; according to the utility model, salt mist is effectively prevented from entering the cabin, and equipment in the cabin is prevented from being corroded by the salt mist.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore photovoltaics, in particular to a prefabricated cabin for an offshore boost system. Background Art

[0002] The traditional offshore boost system integrates the equipment in the wind turbine tower, while the boost system of offshore photovoltaic string components is set up on the coast. This means that if the equipment fails, the impact is relatively large, and the construction cost and operation and maintenance cost are high. Offshore wind power and photovoltaic power generation intelligent boost systems are mainly installed and used on offshore wind turbines or photovoltaic platforms. Affected by the platform space, maintenance conditions and climate environment, the operating reliability of the system and its products is higher than that on land.

[0003] With the development of society, more and more offshore booster station projects require the nearby installation of booster equipment. According to the requirements of power conversion, the offshore booster system needs to boost the low voltage (AC690V / 1140V) and 800V power generated by offshore wind turbines and photovoltaic generators to medium voltage (35kV or 66kV), and then transmit it to the booster station via submarine cables. In order to ensure the safety and reliability of the booster system and lines, the offshore booster system also includes secondary measurement and control protection devices, which mainly realize specific intelligent functions such as control, measurement, protection, and communication.

[0004] At present, most of the offshore boost systems put into operation in my country adopt an integral structure. The equipment construction time is relatively long. There are a large number of optical cable laying channels between the equipment rooms. The number of equipment openings and embedded parts is large. The workload of optical cable connection and fireproof blocking is huge. Considering the layout plan and cable laying requirements between the equipment on each floor, the upper structure of the platform is relatively complex. Once a local failure occurs after the platform is put into operation, it is difficult to repair and replace the equipment, which increases the offshore operation time and greatly increases the cost of repair and installation. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the utility model is to provide a prefabricated cabin for an offshore boosting system, so as to facilitate the protection of the boosting system and lines, and to facilitate installation and maintenance.

[0006] In order to solve the above technical problems, an embodiment of the utility model proposes a prefabricated cabin for an offshore boosting system, including a cabin body, in which independent low-voltage chamber, transformer chamber, and high-voltage chamber are arranged from front to back, and a low-voltage chamber door, a transformer chamber door, and a high-voltage chamber door corresponding to the low-voltage chamber, transformer chamber, and high-voltage chamber respectively are arranged on the front of the cabin body. Low-voltage cabinets, transformers, and high-voltage cabinets are respectively installed in the low-voltage chamber, transformer chamber, and high-voltage chamber. The low-voltage cabinets, transformers, and high-voltage cabinets are electrically connected by copper busbars or cables, and an inspection door for entering the low-voltage chamber is provided on the side of the cabin body.

[0007] Furthermore, a transformer oil circulation cooling device is provided outside the cabin, and the transformer oil circulation cooling device includes an oil pump, an oil pipe and a cooling device. The transformer oil of the transformer enters the cooling device through the oil pump and the oil pipe for circulation and heat dissipation.

[0008] Furthermore, three air conditioners corresponding to the low-voltage room, transformer room and high-voltage room are installed in the cabin.

[0009] Furthermore, the cabin adopts a .-shaped structure.

[0010] Furthermore, a fire alarm is provided in the low-voltage room.

[0011] Furthermore, a hanging frame is provided on the top of the cabin.

[0012] The beneficial effects of the utility model are as follows: the utility model realizes corrosion resistance, sealing and heat dissipation; the layout design of the utility model is reasonable, and a new type of mesh-shaped structure is used to reasonably allocate space, save the use of cables and copper plates, and reduce construction costs; the utility model effectively isolates salt mist from entering the cabin, preventing salt mist from corroding the equipment in the cabin; the utility model can dissipate heat in the cabin in time, preventing the equipment in the cabin from being damaged due to overheating; the utility model is easy to disassemble, install and maintain, greatly reducing the operation and maintenance time, and ensuring the economic benefits of power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of a prefabricated cabin for an offshore boost system according to an embodiment of the utility model.

[0014] Figure 2 It is a rear view of a prefabricated cabin for an offshore boost system according to an embodiment of the utility model.

[0015] Figure 3 It is a left view of a prefabricated cabin for an offshore boost system according to an embodiment of the utility model.

[0016] Figure 4 It is a diagram of the internal structure of a prefabricated cabin for an offshore boost system according to an embodiment of the utility model.

[0017] Figure 5 It is a top view of a prefabricated cabin for an offshore boosting system according to an embodiment of the utility model with the top cover removed.

[0018] Description of Figure Numbers

[0019] Cabin 1, low-voltage chamber 2, transformer chamber 3, high-voltage chamber 4, low-voltage chamber door 5, transformer chamber door 6, high-voltage chamber door 7, inspection door 8, transformer oil circulation cooling device 9, low-voltage cabinet 10, transformer 11, high-voltage cabinet 12, air conditioner 13, fire alarm 14, lifting frame 15. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present utility model is further described in detail below in conjunction with the drawings and specific embodiments.

[0021] In the embodiments of the present invention, if there are directional indications (such as up, down, left, right, front, back, etc.), they are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0023] Please refer to Figure 1 to Figure 5 The prefabricated cabin for the offshore boost system of the embodiment of the utility model includes a cabin body.

[0024] There are independent low-voltage room, transformer room and high-voltage room in the cabin from front to back. The low-voltage room, transformer room and high-voltage room are isolated and independent from each other, so that the equipment in the three rooms will not affect each other.

[0025] The front of the cabin is equipped with a low-voltage room door, a transformer room door, and a high-voltage room door corresponding to the low-voltage room, transformer room, and high-voltage room respectively. Low-voltage cabinets, transformers, and high-voltage cabinets are installed in the low-voltage room, transformer room, and high-voltage room respectively. The low-voltage cabinets, transformers, and high-voltage cabinets are electrically connected through copper bars or cables. An inspection door for entering the low-voltage room is provided on the side of the cabin.

[0026] As an implementation method, a transformer oil circulation cooling device is provided outside the cabin, and the transformer oil circulation cooling device takes the heat generated by the transformer during operation out of the cabin. The transformer oil circulation cooling device includes an oil pump, an oil pipe and a cooling device. The oil pump draws the transformer oil (the transformer includes an oil cooling device for heat dissipation, and the oil cooling device uses transformer oil for heat dissipation) in the transformer to the transformer oil circulation cooling device outside the cabin, and the heat of the oil is dissipated to the outside through the fan of the cooling device, and then recirculated and flows back into the transformer. The utility model discharges the transformer oil temperature to the outside of the cabin through the transformer oil circulation cooling device, thereby reducing the diffusion of the oil temperature into the cabin.

[0027] As an implementation method, three air conditioners corresponding to the low-voltage room, transformer room, and high-voltage room are installed in the cabin. The air conditioner preferably uses an internal and external circulation integrated air conditioner with an anti-corrosion grade that meets the CX requirements. The utility model adopts an internal and external circulation integrated air conditioner to regulate the temperature of the low-voltage room, transformer room, and high-voltage room for heat dissipation. Because the air conditioner is an internal and external circulation mode, the inside and outside are independent of each other, which effectively isolates salt mist from entering the cabin and causing corrosion to the prefabricated cabin equipment. The external unit of the air conditioner is made of stainless steel and treated with anti-corrosion paint. The anti-corrosion grade can meet the CX anti-corrosion requirements, which can effectively prevent aging and corrosion of the equipment.

[0028] As an implementation method, the cabin adopts a .-shaped structure. The .-shaped structure separates the cabin into three independent low-voltage rooms, a transformer room, and a high-voltage room. The space allocation of the .-shaped structure is more reasonable, saving the use of cables and copper plates and reducing construction costs.

[0029] As an implementation method, a fire alarm is provided in the low-voltage room, which will sound an alarm when an abnormal situation occurs to prevent a serious fire.

[0030] As an implementation method, a hanging frame is provided on the top of the cabin body, which facilitates the installation of the prefabricated cabin.

[0031] Although the 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 prefabricated cabin for an offshore boost system, comprising a cabin body, characterized in that: The cabin is equipped with independent low-voltage room, transformer room and high-voltage room from front to back. The front of the cabin is equipped with low-voltage room door, transformer room door and high-voltage room door corresponding to the low-voltage room, transformer room and high-voltage room respectively. Low-voltage cabinets, transformers and high-voltage cabinets are installed in the low-voltage room, transformer room and high-voltage room respectively. The low-voltage cabinets, transformers and high-voltage cabinets are electrically connected by copper busbars or cables. There is an inspection door for entering the low-voltage room on the side of the cabin.

2. The prefabricated cabin for offshore boosting system according to claim 1, characterized in that: A transformer oil circulation cooling device is provided outside the cabin. The transformer oil circulation cooling device comprises an oil pump, an oil pipe and a cooling device. The transformer oil of the transformer enters the cooling device through the oil pump and the oil pipe for circulation and heat dissipation.

3. The prefabricated cabin for offshore boosting system according to claim 1, characterized in that: There are three air conditioners installed on the cabin, corresponding to the low-voltage room, transformer room and high-voltage room respectively.

4. The prefabricated cabin for offshore boosting system according to claim 1, characterized in that: The cabin adopts a U-shaped structure.

5. The prefabricated cabin for offshore boosting system according to claim 1, characterized in that: There is a fire alarm in the low-voltage room.

6. The prefabricated cabin for offshore boosting system according to claim 1, characterized in that: A hanging frame is provided on the top of the cabin.

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