Transformer for offshore wind power energy storage

Abstract

The invention provides an offshore wind power energy storage-based transformer, and relates to the technical field of transformers, the offshore wind power energy storage-based transformer comprises a transformer inner core and a transformer shell, the transformer inner core is mounted in the transformer shell and is protected by the transformer shell, and a plurality of ventilation holes are formed in the front and rear surfaces of the transformer shell; an air draft device and a sea wind filtering device are arranged on the two faces, provided with the ventilation holes, of the interior of the transformer shell correspondingly, the air draft device is used for extracting hot air in the transformer shell for heat dissipation, and the sea wind filtering device is used for filtering salt in air and drying the air. When the transformer is used, the protection plate and the wind shield are arranged in the transformer shell to block the ventilation holes, meanwhile, the air draft component is arranged to actively extract air for active heat dissipation, the filtering component is arranged to dry and filter the entering air, contact between salt and an inner core of the transformer is reduced, and the service life of the transformer is prolonged. The heat dissipation effect is improved, and corrosion of salt to an inner core and internal components of the transformer is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to a transformer for offshore wind power energy storage. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core (magnetic core). Its main functions include: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc.

[0003] Compared with inland areas, the sea has fewer obstacles and has better advantages in wind power generation. Therefore, wind power generation equipment will be built on the sea to convert wind energy into electrical energy for use. After the offshore wind power generation equipment generates electricity through wind power, its voltage is unstable. In order to make the electricity generated by the wind turbine usable, the voltage of the electricity will be changed through transformers and other transformers so that the voltage meets the utilization standards.

[0004] When the transformer is in use, its magnetic core generates a lot of heat due to the activity of electrons, so the transformer needs to dissipate heat. The existing transformer heat dissipation method is to open heat dissipation holes or install fans inside the transformer for heat dissipation. However, the marine environment contains a lot of salt. These salts will enter the interior of the transformer through the heat dissipation holes, and the salt is corrosive, which will corrode the components inside the transformer, seriously affecting the service life of the transformer.

[0005] To this end, the present application proposes a transformer for offshore wind power energy storage, which improves the heat dissipation performance of the transformer while reducing the degree of corrosion of the transformer by sea salt. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a transformer for offshore wind power energy storage, which is used to solve the problem mentioned in the prior art that the inner core of the transformer is easily corroded by sea salt.

[0007] To achieve the above-mentioned purpose and other related purposes, the present invention provides a transformer for offshore wind power energy storage, comprising a transformer core and a transformer shell, wherein the transformer core is installed inside the transformer shell;

[0008] The transformer housing is provided with a plurality of ventilation holes on both the front and rear sides;

[0009] The two sides of the transformer shell with ventilation holes are respectively provided with an exhaust device and a sea breeze filter device. The exhaust device is used to extract hot air in the transformer shell for heat dissipation, and the sea breeze filter device is used to filter salt in the air and dry the air.

[0010] Preferably, the exhaust device comprises a protective plate and an exhaust component, the protective plate is arranged inside the transformer housing and covers the ventilation hole on one side, and the protective plate is provided with an air outlet hole;

[0011] The air extraction component is arranged between the transformer housing and the protective plate.

[0012] Preferably, a gap is left between the outer surface of the protective plate and the outer surface of the transformer core.

[0013] Preferably, the sea breeze filtering device includes a wind shield, a supporting component and a filtering component, the wind shield is arranged on a side of the transformer casing away from the protective plate to cover the ventilation hole, a sea breeze filtering chamber is formed between the wind shield and the inner wall of the transformer casing, the supporting component is arranged on the upper part of the sea breeze filtering chamber, and the filtering component is arranged on the supporting component to cover the upper part of the sea breeze filtering chamber.

[0014] Preferably, the outer surface of the filter component is covered with a plurality of filter holes, and the interior of the filter component is filled with desiccant and activated carbon.

[0015] Preferably, a condensing device is also installed on the transformer casing, and the condensing device includes a water storage component, a circulation component and a condensing component. The water storage component is located at the bottom of the transformer casing, the circulation component is installed on the side of the transformer casing, and the condensing component is arranged inside the transformer casing, and the water storage component, the circulation component and the condensing component are connected by a pipeline.

[0016] Preferably, transformer supporting feet are provided on both sides of the bottom of the transformer casing to raise the bottom of the transformer casing, and the water storage component is located between the transformer supporting feet on both sides.

[0017] Preferably, the outer surface of the condensing component overlaps with the outer surface of the wind shield and the inner core of the transformer respectively.

[0018] Preferably, a drip groove is provided at the bottom of the sea breeze filter chamber, and a guide groove is provided on the upper side of the transformer support foot close to the drip groove.

[0019] Preferably, the condensation component includes a heat-conductive shell and a condenser tube, the condenser tube is covered by the heat-conductive shell, the outer surface of the condenser tube overlaps the outer surface of the wind shield and the inner wall of the heat-conductive shell respectively, and the outer surface of the heat-conductive shell overlaps the outer surface of the transformer core.

[0020] As described above, the transformer for offshore wind power energy storage of the present invention has the following beneficial effects:

[0021] 1. The present invention blocks the ventilation holes by respectively arranging a protective plate and a wind shield inside the transformer shell, and at the same time arranging an exhaust component to actively extract air for active heat dissipation, and arranging a filter component to dry and filter the incoming air to reduce the contact between salt and the transformer core, thereby achieving the effect of improving heat dissipation and reducing the corrosion of salt to the transformer core and internal components.

[0022] 2. The present invention arranges a condensation component inside the transformer casing, and makes the condensation component contact with the transformer core to absorb the heat generated when the transformer core is working. At the same time, the liquid in the water storage component is extracted and circulated through the circulation component, so that the heat absorbed by the condensation component is quickly taken away, thereby achieving the effect of further improving the heat dissipation performance.

[0023] 3. The present invention blocks the incoming sea breeze by setting a wind shield and makes the wind shield contact with the condensation component, so that the temperature of the wind shield is higher than the sea breeze in winter and lower than the sea breeze in summer. When the low-temperature sea breeze meets the high-temperature wind shield, it will absorb the heat of the wind shield, or when the high-temperature sea breeze meets the low-temperature wind shield, it will condense into water droplets and drip along the wind shield, thereby improving the heat dissipation effect or reducing the contact between sea salt and the filter component, avoiding sea salt crystals clogging the filter component and affecting air circulation.

[0024] 4. The present invention provides a drip groove at the bottom of the sea breeze filter chamber and a guide groove on the transformer support foot below the drip groove. The condensed water droplets will be discharged from the inside of the sea breeze filter chamber through the drip groove, and the discharged water droplets will flow out along the guide groove, thereby preventing the salt-containing water droplets from contacting the fixing bolts of the transformer support foot and corroding the bolts.

[0025] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Shown is a schematic structural diagram of the present invention.

[0027] Figure 2 Shown is a rear view of the structure of the present invention.

[0028] Figure 3 Shown is a schematic diagram of the internal structure of the present invention.

[0029] Figure 4 It shows a schematic diagram of the structural installation of the exhaust device, the sea breeze filtering device and the condensing device of the present invention.

[0030] Figure 5 Shown is a schematic structural diagram of the sea breeze filter chamber of the present invention.

[0031] Figure 6 Shown is a side view of the structure of the present invention.

[0032] Figure 7 Shown as the present invention Figure 6 A schematic diagram of the enlarged structure at point A in the middle.

[0033] Figure 8 Shown is a cross-sectional view of the structure of the condensation component of the present invention.

[0034] Component number description

[0035] 1. Transformer core; 2. Transformer shell; 3. Heat dissipation fins; 4. Ventilation holes; 5. Exhaust device; 501. Protective plate; 502. Air outlet; 503. Exhaust component; 6. Sea breeze filter device; 601. Wind shield; 602. Sea breeze filter chamber; 603. Support component; 604. Filter component; 605. Drip trough; 7. Condensation device; 701. Water storage component; 702. Circulation component; 703. Condensation component; 7031. Thermal conductive shell; 7032. Condenser; 8. Transformer support foot; 801. Diversion trough. DETAILED DESCRIPTION

[0036] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0037] See also Figures 1 to 8 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0038] like Figure 1-Figure 8 As shown, the present invention provides a transformer for offshore wind power energy storage, including a transformer core 1 and a transformer shell 2. The transformer core 1 is installed inside the transformer shell 2 and protected by the transformer shell 2. In order to improve the anti-corrosion performance of the transformer shell 2 itself, an anti-corrosion coating is sprayed on the outer surface of the transformer shell 2. At the same time, the electrodes of the transformer core 1 extend to the outer surface of the transformer shell 2 to form a complete transformer.

[0039] A plurality of heat dissipation fins 3 are provided on both the front and rear surfaces of the transformer housing 2 to increase the contact area between the outer surface of the transformer housing 2 and the air, so as to improve the heat dissipation capacity of the outer surface of the transformer housing 2. At the same time, the heat dissipation fins 3 can also be used as reinforcing ribs to improve the anti-deformation capacity of the transformer housing 2. Ventilation holes 4 are provided between two adjacent heat dissipation fins 3, and air enters the interior of the transformer housing 2 through the ventilation holes 4, and circulates to dissipate heat from the transformer core 1 when it is working.

[0040] The transformer housing 2 has ventilation holes 4 on both sides thereof, and an exhaust device 5 and a sea breeze filter 6 are provided respectively. The exhaust device 5 is used to extract hot air in the transformer housing 2 for heat dissipation, and the sea breeze filter 6 is used to filter salt in the air and dry the air, thereby reducing the corrosion of the transformer core 1 by the ocean air.

[0041] In some embodiments, the exhaust device 5 of the present invention includes a protective plate 501 and an exhaust component 503. The protective plate 501 is arranged inside the transformer housing 2 and covers the ventilation hole 4 on one side. The protective plate 501 is provided with an air outlet 502, and hot air is exchanged with the outside air through the air outlet 502 and the ventilation hole 4 to achieve heat dissipation. The exhaust component 503 is arranged between the transformer housing 2 and the protective plate 501, so that the exhaust component 503 is isolated and protected by the protective plate 501 to prevent the connecting wires of the transformer core 1 from being sucked into between the exhaust components 503 when the exhaust component 503 is working or extracting air, thereby preventing the line from being damaged;

[0042] The exhaust component 503 mentioned above can be a fan or other device capable of extracting air, which is used to reduce the internal air pressure of the transformer casing 2, allowing the external air pressure to enter the interior of the transformer casing 2 through the ventilation hole 4 close to the side of the sea breeze filter device 6 to form air exchange.

[0043] In some embodiments, a gap is left between the outer surface of the protective plate 501 of the present invention and the outer surface of the transformer core 1, thereby improving the working efficiency of the air extraction component 503. When the distance between the protective plate 501 and the transformer core 1 is too close, the airflow will be blocked by the transformer core 1 when the air extraction component 503 extracts air, resulting in a decrease in the working energy efficiency of the air extraction component 503.

[0044] In some embodiments, the sea breeze filter device 6 of the present invention includes a windshield 601, a support component 603 and a filter component 604. The windshield 601 is arranged on a side of the transformer housing 2 away from the protective plate 501 to cover the ventilation hole 4, and is used to prevent air from directly entering the interior of the transformer housing 2 and contacting the transformer core 1. A sea breeze filter chamber 602 is formed between the windshield 601 and the inner wall of the transformer housing 2, forming an air circulation channel so that the air circulates along the path of the sea breeze filter chamber 602. The support component 603 is arranged on the upper part of the sea breeze filter chamber 602, and the filter component 604 is arranged on the support component 603 to cover the upper part of the sea breeze filter chamber 602. The support component 603 can be a horizontally arranged support rod or a hollow frame. When the air containing salt enters the interior of the sea breeze filter chamber 602, the salt in the air will be filtered by the filter component 604 in large quantities, reducing the corrosion of the transformer core 1 by salt, and improving the service life of the transformer core 1.

[0045] In some embodiments, the outer surface of the filter component 604 of the present invention is covered with a plurality of filter holes, and the interior of the filter component 604 is filled with a desiccant and activated carbon. The desiccant is used to absorb moisture in the air and increase the dryness of the air, while the activated carbon is the main substance for absorbing and filtering salt in the air. The desiccant and the activated carbon cooperate with each other to keep the air in contact with the transformer core 1 low in salt and high in dryness, thereby increasing the service life of the transformer core 1 and components.

[0046] In some embodiments, a condensing device 7 is further installed on the transformer housing 2 of the present invention, and the condensing device 7 includes a water storage component 701, a circulation component 702 and a condensing component 703. The water storage component 701 is located at the bottom of the transformer housing 2, the circulation component 702 is installed on the side of the transformer housing 2, and the condensing component 703 is arranged inside the transformer housing 2, and the water storage component 701, the circulation component 702 and the condensing component 703 are connected through a pipeline. When in use, the circulation component 702 extracts the circulating liquid in the water storage component 701 and circulates it in the condensing component 703. The circulating liquid is used to dissipate heat from the inside of the transformer housing 2 and the transformer core 1, further improving the heat dissipation effect.

[0047] In some embodiments, transformer support feet 8 are provided on both sides of the bottom of the transformer housing 2 of the present invention to raise the bottom of the transformer housing 2, and the water storage component 701 is located between the transformer support feet 8 on both sides. The transformer support feet 8 are provided to facilitate the installation of the transformer housing 2 on an offshore platform. At the same time, space is left at the bottom of the transformer housing 2 for installing the water storage component 701, thereby reducing the pressure of the transformer core 1 and the transformer housing 2 on the water storage component 701.

[0048] In some embodiments, the outer surface of the condensation component 703 of the present invention overlaps with the outer surface of the windshield 601 and the transformer core 1, so that when the liquid is circulated, the condensation component 703 can take away the heat from the surface of the transformer core 1, just like a water-cooled radiator, to improve the heat dissipation effect of the transformer core 1. The condensation component 703 is in contact with the windshield 601, so that the windshield 601 also maintains a relatively low temperature. When the low-temperature sea breeze encounters the high-temperature windshield 601, it will absorb the heat of the windshield 601, or the high-temperature sea breeze encounters the low-temperature windshield 601 and condenses into water droplets. This can achieve the effect of improving heat dissipation or reducing the effect of sea salt blocking the filter component 604.

[0049] Specifically, a drip groove 605 is provided at the bottom of the sea breeze filter chamber 602 of the present invention, and a guide groove 801 is provided on the transformer support foot 8 near the drip groove 605. Condensed water droplets will be discharged from the inside of the sea breeze filter chamber 602 through the drip groove 605, and the discharged water droplets will flow out along the guide groove 801. This prevents the disorderly flow of water droplets from corroding the bolts and other connectors and making them difficult to disassemble.

[0050] In some embodiments, the condensation component 703 of the present invention includes a heat-conducting shell 7031 and a condensing tube 7032, the condensing tube 7032 is covered by the heat-conducting shell 7031, the outer surface of the condensing tube 7032 overlaps the outer surface of the windshield 601 and the inner wall of the heat-conducting shell 7031, and the outer surface of the heat-conducting shell 7031 overlaps the outer surface of the transformer core 1. The circulating liquid circulates from the inside of the condensing tube 7032, so that the temperature of the outer surface of the windshield 601 and the outer surface of the transformer core 1 is quickly conducted through the contact between the condensing tube 7032 and the heat-conducting shell 7031, thereby achieving heat dissipation. In addition, the curved condensing tube 7032 can achieve a large area of ​​contact with the heat-conducting shell 7031 and the windshield 601, thereby improving the heat dissipation effect.

[0051] The specific use process of the present invention is as follows:

[0052] First, the air extraction component 503 works to extract the air in the transformer housing 2 to the outside of the transformer housing 2, so that a low-pressure area is formed inside the transformer housing 2;

[0053] When a low-pressure area is formed in the transformer housing 2, the normal air pressure outside will flow toward the low-pressure area, that is, it will enter the interior of the sea breeze filter chamber 602 from the ventilation hole 4, and enter the interior of the transformer housing 2 through the filter component 604;

[0054] When the airflow is flowing, it will take away a large amount of heat generated by the transformer core 1 during operation, thereby achieving the heat dissipation function;

[0055] When the sea salt air containing salt passes through the filter component 604, large sea salt particles will be filtered by the filter component 604 and the moist air will be dried by the filter component 604, so that the air in contact with the transformer core 1 is in a low-salt and relatively dry state, reducing the degree of corrosion of the transformer core 1;

[0056] At the same time, the circulation component 702 is started to pressurize the liquid in the water storage component 701, so that the liquid in the water storage component 701 enters the condensation component 703 for circulation, which is used to further improve the heat dissipation effect of the transformer core 1 and keep the wind shield 601 at a relatively low temperature for condensing water molecules in the air and absorbing heat through the water molecules.

[0057] In summary, the transformer for offshore wind power energy storage of the present invention blocks the ventilation holes 4 by respectively arranging a protective plate 501 and a wind shield 601 inside the transformer casing 2, and at the same time arranging an exhaust component 503 to actively extract air for active heat dissipation, and arranging a filter component 604 to dry and filter the incoming air, thereby reducing the contact between salt and the transformer core 1, thereby achieving the effect of improving the heat dissipation effect and reducing the corrosion of the transformer core 1 by salt.

[0058] By setting a condensation component 703 inside the transformer casing 2, and making the condensation component 703 contact the transformer core 1 to absorb the heat generated when the transformer core 1 is working, and at the same time extracting the liquid in the water storage component 701 through the circulation component 702 for circulation, the heat absorbed by the condensation component 703 is quickly taken away, thereby achieving the effect of further improving the heat dissipation performance.

[0059] By setting up a wind shield 601 to block the incoming sea breeze and making the wind shield 601 contact with the condensation component 703, the temperature of the wind shield 601 is higher than the sea breeze in winter and lower than the sea breeze in summer. When the low-temperature sea breeze meets the high-temperature wind shield 601, it will absorb the heat of the wind shield 601, or when the high-temperature sea breeze meets the low-temperature wind shield 601, it will condense into water droplets and drip along the wind shield 601, thereby improving the heat dissipation effect and reducing the contact between sea salt and the filter component 604, avoiding sea salt crystals clogging the filter component 604 and affecting air circulation.

[0060] By opening a drip groove 605 at the bottom of the sea breeze filter chamber 602 and opening a guide groove 801 on the transformer support foot 8 below the drip groove 605, condensed water droplets will be discharged from the inside of the sea breeze filter chamber 602 through the drip groove 605, and the discharged water droplets will flow out along the guide groove 801, thereby preventing the salt-containing water droplets from contacting the fixing bolts of the transformer support foot 8 and corroding the bolts.

[0061] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0062] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A transformer for offshore wind power energy storage, comprising a transformer core (1) and a transformer shell (2), characterized in that: The transformer core (1) is installed inside the transformer housing (2); The transformer housing (2) is provided with a plurality of ventilation holes (4) on both the front and rear surfaces; The transformer housing (2) has ventilation holes (4) formed inside, and has two sides on which an exhaust device (5) and a sea breeze filter device (6) are respectively provided. The exhaust device (5) is used to extract hot air from the transformer housing (2) for heat dissipation, and the sea breeze filter device (6) is used to filter salt from the air and dry the air.

2. The transformer for offshore wind power energy storage according to claim 1 is characterized in that: The air extraction device (5) comprises a protective plate (501) and an air extraction component (503); the protective plate (501) is arranged inside the transformer housing (2) and covers the ventilation hole (4) on one side; and the protective plate (501) is provided with an air outlet hole (502); The air extraction component (503) is arranged between the transformer housing (2) and the protection plate (501).

3. The transformer for offshore wind power energy storage according to claim 2 is characterized in that: A gap is left between the outer surface of the protection plate (501) and the outer surface of the transformer inner core (1).

4. The transformer for offshore wind power energy storage according to claim 2 is characterized in that: The sea breeze filtering device (6) comprises a wind shield (601), a supporting component (603) and a filtering component (604); the wind shield (601) is arranged on a side of the transformer housing (2) away from the protective plate (501) to cover the ventilation hole (4); a sea breeze filtering chamber (602) is formed between the wind shield (601) and the inner wall of the transformer housing (2); the supporting component (603) is arranged on the upper part of the sea breeze filtering chamber (602); and the filtering component (604) is arranged on the supporting component (603) to cover the upper part of the sea breeze filtering chamber (602).

5. The transformer for offshore wind power energy storage according to claim 4 is characterized in that: The outer surface of the filter component (604) is covered with a plurality of filter holes, and the interior of the filter component (604) is filled with desiccant and activated carbon.

6. The transformer for offshore wind power energy storage according to claim 4 is characterized in that: A condensing device (7) is also installed on the transformer housing (2), and the condensing device (7) comprises a water storage component (701), a circulation component (702) and a condensing component (703), wherein the water storage component (701) is located at the bottom of the transformer housing (2), the circulation component (702) is installed on the side of the transformer housing (2), and the condensing component (703) is arranged inside the transformer housing (2), and the water storage component (701), the circulation component (702) and the condensing component (703) are connected through a pipeline.

7. The transformer for offshore wind power energy storage according to claim 6 is characterized in that: Transformer support feet (8) are provided on both sides of the bottom of the transformer housing (2) to raise the bottom of the transformer housing (2), and the water storage component (701) is located between the transformer support feet (8) on both sides.

8. The transformer for offshore wind power energy storage according to claim 7 is characterized in that: The outer surface of the condensation component (703) overlaps with the outer surface of the wind shield (601) and the outer surface of the transformer core (1) respectively.

9. The transformer for offshore wind power energy storage according to claim 8, characterized in that: A drip groove (605) is provided at the bottom of the sea breeze filter chamber (602), and a guide groove (801) is provided on the upper surface of the transformer support foot (8) close to the drip groove (605).

10. The transformer for offshore wind power energy storage according to claim 9, characterized in that: The condensation component (703) includes a heat-conducting outer shell (7031) and a condensation tube (7032), wherein the condensation tube (7032) is covered by the heat-conducting outer shell (7031), and the outer surface of the condensation tube (7032) is overlapped with the outer surface of the wind shield (601) and the inner wall of the heat-conducting outer shell (7031), respectively, and the outer surface of the heat-conducting outer shell (7031) is overlapped with the outer surface of the transformer core (1).

Images