Pressure equalization system for oil compensation containers used in offshore wind power transformers

Abstract

This utility model discloses a pressure equalization system device for an oil compensation container in an offshore wind power transformer, comprising a first oil conservator and a second oil conservator installed on the transformer oil tank. The first oil conservator is connected to the transformer oil tank sequentially via a metal connecting pipe, a gas relay, a corrugated connecting pipe, and a butterfly valve. The airtight portion and the insulating oil portion of the first oil conservator are respectively connected to corresponding portions of the second oil conservator. The second oil conservator is also connected to the transformer oil tank. A first nitrogen tank and a second nitrogen tank are fixedly installed on the side wall of the transformer oil tank, and the first and second oil conservators are respectively connected to the first and second nitrogen tanks. This utility model can effectively meet the operating conditions of offshore wind power transformers, enabling the transformer to operate safely for a long time. The oil compensation device has a simple structure, is easy to install, practical and reliable, and is of great significance to the safe and reliable operation of the power grid.

Description

Technical Field

[0001] This utility model relates to a pressure equalization system device for an oil compensation container used in offshore wind power transformers, belonging to the field of transformer equipment technology. Background Technology

[0002] Offshore wind power, as an important direction for the development and utilization of renewable energy, has become a research hotspot in global wind power development. my country's offshore wind power development prospects are very broad, playing a crucial role in promoting energy structure transformation and undertaking environmental protection upgrades.

[0003] Due to their unique operating environment, offshore wind power transformers may require long-term operation in coastal and marine environments. To ensure the safe and reliable operation of electrical equipment, higher requirements are placed on the transformer oil compensation device, necessitating improvements to meet the product's operating conditions. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an oil compensation device for offshore wind power transformers, which has the characteristics of simple structure, reasonable design, convenient installation, practicality and reliability.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] In a first aspect, this utility model provides a pressure equalization system device for an oil compensation container used in offshore wind power transformers, including a first oil tank and a second oil tank installed on the transformer oil tank. The first oil tank is connected to the transformer oil tank in sequence through a metal connecting pipe, a gas relay, a corrugated connecting pipe, and a butterfly valve. The airtight part and the insulating oil part of the first oil tank are respectively connected to the corresponding parts of the second oil tank through pipelines. The second oil tank is connected to the transformer oil tank through a pipeline. A first nitrogen tank and a second nitrogen tank are fixedly installed on the side wall of the transformer oil tank, and the first oil tank and the second oil tank are respectively connected to the first nitrogen tank and the second nitrogen tank through pipelines.

[0007] Furthermore, the airtight portion of the first oil tank is connected to the airtight portion of the second oil tank via a first metal hose, and the insulating oil portion of the first oil tank is connected to the insulating oil portion of the second oil tank via a second metal hose.

[0008] Furthermore, the first oil tank is connected to the first nitrogen tank via a third metal hose.

[0009] Furthermore, the second oil tank is connected to the second nitrogen tank via a fourth metal hose.

[0010] Furthermore, the second oil conservator is connected to the transformer oil tank via a fifth metal hose.

[0011] Furthermore, the first and second oil tanks are fixed to the transformer oil tank by fastening bolts.

[0012] Furthermore, the first nitrogen tank and the second nitrogen tank are fixed to the side wall of the transformer tank by fastening bolts.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0014] I. This solution connects the transformer oil conservator and the oil tank, thereby effectively compensating the transformer insulating oil. In addition, the oil conservator is connected to the nitrogen tank to ensure the airtightness of the oil conservator and prevent the insulating oil from contacting air and causing oxidation of the outlet wires. The oil conservator is connected to the transformer oil tank through metal connecting pipes, gas relays, corrugated connecting pipes, and butterfly valves, which ensures reliable connection, convenient installation, and easy replacement, thus forming an insulating oil compensation structure.

[0015] 2. In this solution, the bottoms of the two oil conservators are connected to each other via flexible metal hoses to form an integrated compensation structure, ensuring consistent oil levels. Furthermore, the airtight sections of the two oil conservators are also connected as a single unit via flexible metal hoses, creating an integrated pneumatic sealing structure that maintains consistent sealing pressure between the two conservators. One of the oil conservators' airtight sections is connected to the transformer tank via a flexible metal hose. When the temperature decreases, nitrogen from the airtight device dissolves into the insulating oil; when the temperature increases, nitrogen is released from the insulating oil. This nitrogen returns to the airtight section of the oil conservator via the flexible metal hose, reducing the amount of nitrogen returning through the gas relay and preventing false alarms from the gas relay. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 A front view of an oil compensation device for an offshore wind power transformer provided in an embodiment of this utility model;

[0018] Figure 2 This is a top view of an oil compensation device for an offshore wind power transformer, provided as an embodiment of the present invention.

[0019] In the diagram: 1. First oil conservator; 2. Second oil conservator; 3. First nitrogen tank; 4. Second nitrogen tank; 5. Transformer oil tank; 6. First metal hose; 7. Second metal hose; 8. Third metal hose; 9. Fourth metal hose; 10. Fifth metal hose; 11. Metal connecting pipe; 12. Gas relay; 13. Corrugated connecting pipe; 14. Butterfly valve. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0021] The following detailed description is exemplary and intended to provide further detailed explanation of the present invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this invention.

[0022] Example:

[0023] like Figure 1 and Figure 2 As shown, this embodiment discloses a pressure equalization system device for an oil compensation container used in an offshore wind power transformer, including a first oil tank 1 and a second oil tank 2 installed on a transformer oil tank 5, wherein: a first nitrogen tank 3 and a second nitrogen tank 4 are fixed to the side wall of the transformer oil tank 5; the first oil tank 1 is connected to the transformer oil tank 5 in sequence through a metal connecting pipe 11, a gas relay 12, a corrugated connecting pipe 13, and a butterfly valve 14; the airtight part of the first oil tank 1 is connected to the airtight part of the second oil tank 2 through a first metal flexible hose 6; the insulating oil part of the first oil tank 1 is connected to the insulating oil part of the second oil tank 2 through a second metal flexible hose 7; the first oil tank 1 is connected to the first nitrogen tank 3 through a third metal flexible hose 8; the second oil tank 2 is connected to the second nitrogen tank 4 through a fourth metal flexible hose 9; and the second oil tank 2 is connected to the transformer oil tank 5 through a fifth metal flexible hose 10.

[0024] During on-site installation, firstly, the first oil conservator 1 and the second oil conservator 2 are fixed to the transformer oil tank 5 with fastening bolts. Then, the first nitrogen tank 3 and the second nitrogen tank 4 are fixed to the side wall of the transformer oil tank 5 with fastening bolts. Next, the first metal hose 6, the second metal hose 7, the third metal hose 8, the fourth metal hose 9, and the fifth metal hose 10 are used to connect the first oil conservator 1, the second oil conservator 2, the first nitrogen tank 3, the second nitrogen tank 4, and the transformer oil tank 5 according to the above connection method. Finally, the first oil conservator 1 is connected to the transformer oil tank 5 using the metal connecting pipe 11, the gas relay 12, the corrugated connecting pipe 13, and the butterfly valve 14.

[0025] This solution connects the transformer oil conservator and the oil tank to effectively compensate the transformer insulating oil. The conservator is also connected to a nitrogen tank to ensure its airtightness and prevent oxidation of the insulating oil due to contact with air. The conservator is connected to the transformer oil tank via metal connecting pipes, a gas relay, a corrugated connecting pipe, and a butterfly valve, ensuring reliable connection, convenient installation, and easy replacement, thus forming an insulating oil compensation structure. The bottoms of the two conservators are interconnected via flexible metal hoses to form an integrated compensation structure, ensuring consistent oil levels. The airtight sections of the two conservators are also interconnected via flexible metal hoses to form a single unit, and the integrated air pressure sealing structure ensures consistent sealing pressure between the two conservators. One of the airtight sections of the conservator is connected to the transformer oil tank via a flexible metal hose. When the temperature decreases, nitrogen in the airtight device dissolves into the insulating oil; when the temperature increases, nitrogen is released from the insulating oil. The nitrogen returns to the airtight section of the conservator through the flexible metal hose, reducing the amount of nitrogen returning through the gas relay and preventing false alarms from the gas relay. The oil compensation device in this solution can effectively meet the operating conditions of offshore wind power transformers, enabling the transformers to operate safely for a long time. The oil compensation device has a simple structure, is easy to install, and is practical and reliable, which is of great significance to the safe and reliable operation of the power grid.

[0026] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A pressure equalization system arrangement for an oil compensation vessel for a marine wind power transformer, characterized in that The transformer oil tank includes a first oil tank (1) and a second oil tank (2) installed on the transformer oil tank (5). The first oil tank (1) is connected to the transformer oil tank (5) in sequence through a metal connecting pipe (11), a gas relay (12), a corrugated connecting pipe (13), and a butterfly valve (14). The airtight part and the insulating oil part of the first oil tank (1) are respectively connected to the corresponding parts of the second oil tank (2) through pipelines. The second oil tank (2) is connected to the transformer oil tank (5) through pipelines. The transformer oil tank (5) is fixedly installed with a first nitrogen tank (3) and a second nitrogen tank (4) on its side wall. The first oil tank (1) and the second oil tank (2) are respectively connected to the first nitrogen tank (3) and the second nitrogen tank (4) through pipelines.

2. The pressure equalization system device for an oil compensation container in an offshore wind power transformer according to claim 1, characterized in that, The airtight part of the first oil tank (1) is connected to the airtight part of the second oil tank (2) through the first metal hose (6), and the insulating oil part of the first oil tank (1) is connected to the insulating oil part of the second oil tank (2) through the second metal hose (7).

3. The pressure equalization system device for an oil compensation container of an offshore wind power transformer according to claim 1, characterized in that, The first oil tank (1) is connected to the first nitrogen tank (3) through the third metal hose (8).

4. The pressure equalization system device for an oil compensation container of an offshore wind power transformer according to claim 1, characterized in that, The second oil tank (2) is connected to the second nitrogen tank (4) via the fourth metal hose (9).

5. The pressure equalization system device for an oil compensation container of an offshore wind power transformer according to claim 1, characterized in that, The second oil tank (2) is connected to the transformer oil tank (5) through the fifth metal hose (10).

6. The pressure equalization system device for an oil compensation container of an offshore wind power transformer according to claim 1, characterized in that, The first oil tank (1) and the second oil tank (2) are fixed to the transformer oil tank (5) by fastening bolts.

7. The pressure equalization system device for an oil compensation container of an offshore wind power transformer according to claim 1, characterized in that, The first nitrogen tank (3) and the second nitrogen tank (4) are fixed to the side wall of the transformer oil tank (5) by fastening bolts.

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