Fan case oil collecting device

Abstract

This utility model belongs to the field of power generation equipment protection technology and discloses an oil collection device for a wind turbine transformer box, including an oil collection tank, an oil storage tank, and a limiting bracket. The oil collection tank is placed below the transformer, and the projection of the transformer falls on the oil collection tank, ensuring that the oil collection tank can collect oil leaking from the transformer and preventing oil from dripping outside the oil collection tank, thus avoiding safety hazards. The oil collection tank is connected to the oil storage tank to store the oil collected in the oil collection tank. The limiting bracket includes a frame and at least two limiting rods. The side of the frame in the width direction is U-shaped, and at least two limiting rods are spaced apart along the length direction of the frame. The two ends of the limiting rods are respectively fixed to the two sides in the width direction of the frame. The limiting rods are arc-shaped with a concave middle area. The oil storage tank is cylindrical and is horizontally supported by at least two limiting rods. The outer wall of the oil storage tank is limited along its circumference by the limiting rods to constrain the axial movement of the oil storage tank, prevent the oil storage tank from displaced due to equipment vibration, and improve the seismic stability of the oil storage tank.

Description

Technical Field

[0001] This utility model relates to the field of power generation equipment protection technology, and in particular to an oil collection device for a wind turbine transformer box. Background Technology

[0002] A wind turbine box-type substation (wind turbine generator box-type substation) is a device that integrates a wind turbine generator and a transformer, typically used in wind farms. The wind turbine generator converts wind energy into electrical energy, and the transformer increases the voltage for long-distance transmission.

[0003] Emergency oil management of wind turbine transformer boxes is a crucial aspect of ensuring safe equipment operation and extending service life. In the event of an oil leak in a transformer, immediate measures must be taken to prevent the oil from spreading and causing environmental pollution or safety hazards. At the same time, the cause of the leak must be identified and repaired as soon as possible to reduce unexpected downtime caused by oil problems, ensure the safe and stable operation of the equipment, and improve its availability and efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a fan box transformer oil collection device that can collect leaked oil in a timely manner, prevent oil diffusion, and improve the operational stability of the equipment.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A fan box transformer oil collection device, comprising:

[0007] An oil collection tank is provided, which is located below the transformer and the projection of the transformer falls on the oil collection tank.

[0008] An oil storage tank, wherein the oil collection trough is connected to the oil storage tank, and the oil storage tank is cylindrical;

[0009] A limiting bracket includes a frame and at least two limiting rods. The side of the frame in the width direction is U-shaped. The at least two limiting rods are spaced apart along the length direction of the frame. The two ends of the limiting rods are respectively fixed to the two sides of the frame in the width direction. The limiting rods are arc-shaped with a concave middle area. The oil storage tank is horizontally supported by the at least two limiting rods, and the outer wall of the oil storage tank is limited by the limiting rods along its circumference.

[0010] Preferably, the outer wall of the oil storage tank is provided with a plurality of limiting grooves at intervals along its length, the limiting grooves are pressed along the radial direction of the oil storage tank, and at least two limiting rods are respectively circumferentially engaged in at least two of the limiting grooves.

[0011] Preferably, the frame includes two side frames and two connecting rods. The two side frames are arranged opposite each other. Each side frame is square and includes a bottom rod, a first side rod, a top rod, and a second side rod that are connected end to end. The two connecting rods are spaced apart along the length of the bottom rod, and the two ends of the connecting rods are respectively fixed to the side of the two bottom rods that are close to each other. At least two limiting rods are spaced apart along the length of the bottom rod, and the two ends of the limiting rods are respectively fixed to the side of the two top rods that are close to each other.

[0012] Preferably, the wind turbine transformer oil collection device further includes a guide pipe, a diversion hole is provided on the side of the oil collection tank, an oil collection hole is provided on the top of the oil storage tank, and the two ends of the guide pipe are respectively sealed and connected to the diversion hole and the oil collection hole.

[0013] As a preferred option

[0014] A pressure relief hole is provided at the top of the oil storage tank, the pressure relief hole is sealed and connected to an exhaust pipe, and the exhaust pipe is connected to an exhaust gas outlet; and / or,

[0015] A breather valve is installed on the top of the oil storage tank.

[0016] Preferably, the oil storage tank has an oil drain hole at the bottom, the oil drain hole is sealed and connected to one end of the oil drain pipe, the other end of the oil drain pipe is connected to the oil pool, and the oil drain pipe is equipped with a shut-off valve.

[0017] Preferably, an observation window is provided on at least one side of the oil storage tank along its length.

[0018] Preferably, an oil level monitor is installed on the top of the inner wall of the oil storage tank, and the oil level monitor is configured to monitor the oil level of the oil storage tank in real time.

[0019] Preferably, the shut-off valve is a solenoid valve, and the fan box transformer oil collection device further includes a control module. The shut-off valve is connected to the control module, and the control module is configured to control the opening and closing of the shut-off valve.

[0020] Preferably, the system further includes a data module, which pre-stores high and low values. The data module is connected to an oil level monitor installed on the top of the inner wall of the oil storage tank and the control module. The data module is configured to receive the detection value from the oil level monitor and compare the detection value with the high and low values. If the detection value is higher than the high value, the control module controls the shut-off valve to open. When the detection value is lower than the low value, the control module controls the shut-off valve to close.

[0021] The beneficial effects of this utility model are:

[0022] This utility model provides an oil collection device for a wind turbine transformer box, including an oil collection tank, an oil storage tank, and a limiting bracket. The oil collection tank is placed below the transformer, and the projection of the transformer falls on the oil collection tank, ensuring that the oil collection tank can collect oil leaking from the transformer and preventing oil from dripping outside the oil collection tank, thus avoiding safety hazards. The oil collection tank is connected to the oil storage tank to store the oil collected in the oil collection tank. The limiting bracket includes a frame and at least two limiting rods. The side of the frame in the width direction is U-shaped, and at least two limiting rods are spaced apart along the length direction of the frame. The two ends of the limiting rods are respectively fixed to the two sides in the width direction of the frame. The limiting rods are arc-shaped with a concave middle area. The oil storage tank is cylindrical and is horizontally supported by at least two limiting rods. The outer wall of the oil storage tank is limited along its circumference by the limiting rods to constrain the axial movement of the oil storage tank, prevent the oil storage tank from displaced due to equipment vibration, and improve the seismic stability of the oil storage tank. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a fan box transformer oil collection device provided in an embodiment of this utility model;

[0024] Figure 2 This is a side view of a fan box transformer oil collection device provided in an embodiment of this utility model;

[0025] Figure 3 This is a front view of a fan box transformer oil collection device provided in an embodiment of this utility model;

[0026] Figure 4 This is a top view of a fan box transformer oil collection device provided in an embodiment of this utility model.

[0027] In the picture:

[0028] 1. Oil collection tank; 2. Oil storage tank; 21. Limiting groove; 3. Guide pipe; 4. Limiting bracket; 41. Frame; 411. Side frame; 4111. Bottom rod; 4112. First side rod; 4113. Top rod; 4114. Second side rod; 412. Connecting rod; 413. Support rod; 42. Limiting rod; 5. Oil drain pipe; 6. Shut-off valve; 7. Breathing valve. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] This embodiment provides a fan box transformer oil collection device that can collect leaked oil in a timely manner, prevent oil diffusion, and improve the operational stability of the equipment.

[0034] Please see Figures 1 to 4 The oil collection device for a wind turbine transformer box provided in this embodiment includes an oil collection tank 1 and an oil storage tank 2. The oil collection tank 1 is used to collect oil leaked from the transformer to prevent the oil from spreading and affecting the operation of the equipment. The oil storage tank 2 is used to store the oil collected by the oil collection tank 1.

[0035] In this embodiment, the oil collection tank 1 is placed below the transformer, and the projection of the transformer falls on the oil collection tank 1, thereby ensuring that the oil collection tank 1 can collect the oil leaked from the transformer and prevent the oil from dripping outside the oil collection tank 1, which could cause safety hazards.

[0036] For example, in this embodiment, the shape of a general transformer is adapted, and the oil collection tank 1 is set to be square.

[0037] Furthermore, the oil collection tank 1 is connected to the oil storage tank 2, and the oil collected in the oil collection tank 1 is stored in the oil storage tank 2.

[0038] Please see Figures 1 to 4 The oil collection device for the wind turbine box transformer also includes a guide pipe 3, through which the oil collection tank 1 and the oil storage tank 2 are connected. Optionally, a drainage hole is provided on the side of the oil collection tank 1, and an oil collection hole is provided on the top of the oil storage tank 2. The two ends of the guide pipe 3 are sealed and connected to the drainage hole and the oil collection hole, respectively. The oil collected in the oil collection tank 1 is guided to the guide pipe 3 through the drainage hole and then to the oil storage tank 2 through the oil collection hole. By setting the drainage hole on the side of the oil collection tank 1, it is possible to avoid the oil collection tank 1 being inconvenient to place after being assembled with the guide pipe 3. By setting the oil collection hole on the top of the oil storage tank 2, it is possible to prevent oil from overflowing.

[0039] Optionally, the two ends of the guide pipe 3 are sealed and connected to the drain hole and the oil collection hole through sealing joints or sealing rings. The sealing joints and sealing rings are conventional existing structures, and their structures will not be described in detail here.

[0040] It should be noted that in this embodiment, the oil storage tank 2 is cylindrical. In this embodiment, the oil storage tank 2 is laterally limited and mounted on the limiting bracket 4. The limiting bracket 4 restricts the axial movement of the oil storage tank 2, prevents the oil storage tank 2 from being displaced due to equipment vibration, and improves the seismic stability of the oil storage tank 2.

[0041] Specifically, please refer to Figure 1 and Figure 2 The limiting bracket 4 includes a frame 41 and at least two limiting rods 42. Please continue reading. Figure 2 The frame 41 has a U-shaped side along its width, and at least two limiting rods 42 are spaced apart along the length of the frame 41. The two ends of each limiting rod 42 are fixed to both sides of the frame 41 along its width, and the limiting rods 42 have a concave arc shape in the middle region to fit the shape of the oil storage tank 2. Furthermore, the oil storage tank 2 is laterally mounted on the at least two limiting rods 42, and the outer wall of the oil storage tank 2 is circumferentially limited by the limiting rods 42, thereby restricting the axial movement of the oil storage tank 2.

[0042] For example, the outer wall of the oil storage tank 2 is provided with a number of limiting grooves 21 at intervals along its length. The limiting grooves 21 are pressed along the radial direction of the oil storage tank 2. At least two limiting rods 42 are respectively circumferentially locked in at least two limiting grooves 21 to achieve axial limiting of the oil storage tank 2.

[0043] This embodiment is provided with two limiting rods 42, which are respectively circumferentially engaged in two limiting grooves 21. In other feasible embodiments, other numbers of limiting rods 42 can be installed, each of which is circumferentially engaged in its corresponding limiting groove 21 to further enhance the axial limiting effect on the oil storage tank 2.

[0044] Specifically, please refer to Figures 1 to 3 The frame 41 includes two side frames 411 and two connecting rods 412. The two side frames 411 are arranged opposite each other and have a square structure. Each side frame 411 includes a bottom rod 4111 connected end to end, a first side rod 4112, a top rod 4113, and a second side rod 4114. The two connecting rods 412 are spaced apart along the length of the bottom rod 4111, and the two ends of the connecting rods 412 are respectively fixed to the side of the two bottom rods 4111 that are close to each other, thus forming a stable structure of the frame 41.

[0045] Furthermore, at least two limiting rods 42 are spaced apart along the length of the bottom rod 4111, and the two ends of the limiting rods 42 are respectively fixed to the side of the two top rods 4113 that are close to each other.

[0046] Furthermore, to ensure the supporting force of the limit rod 42 on the oil storage tank 2, please refer to... Figure 2 In this embodiment, a support rod 413 is provided on the connecting rod 412. The support rod 413 connected to the two connecting rods 412 is respectively connected to the bottom of the two limiting rods 42, providing support for the limiting rods 42, thereby ensuring the supporting force of the limiting rods 42 on the oil storage tank 2.

[0047] As the oil level in storage tank 2 gradually rises during equipment operation, it is necessary to promptly drain the oil from storage tank 2 into an oil sump for unified treatment to prevent accidental leakage. Specifically, an oil drain hole is provided at the bottom of storage tank 2. The oil drain hole is sealed and connected to one end of the oil drain pipe 5, and the other end of the oil drain pipe 5 is connected to the oil sump. A shut-off valve 6 is installed on the oil drain pipe 5. The shut-off valve 6 opens to connect the oil drain pipe 5, and closes to seal the oil drain pipe 5.

[0048] Furthermore, the shut-off valve 6 is a solenoid valve.

[0049] The oil collection device for the wind turbine box transformer provided in this embodiment also includes a control module. The shut-off valve 6 is connected to the control module. The control module controls the opening and closing of the shut-off valve 6 to connect or block the oil drain pipe 5, thereby improving the automation level of the device.

[0050] Preferably, an observation window (not shown in the figure) is provided on at least one side of the oil storage tank 2 along its length so that the staff can observe the liquid level of the oil storage tank 2 with the naked eye through the observation window.

[0051] More preferably, an oil level monitor (not shown in the figure) is installed on the top of the inner wall of the oil storage tank 2. The oil level monitor is used to monitor the oil level of the oil storage tank 2 in real time.

[0052] Furthermore, the oil collection device for the wind turbine box transformer provided in this embodiment also includes a data module. The data module pre-stores high and low values ​​and is connected to the oil level monitor and the control module. By setting the data module, the data module receives the detection value from the oil level monitor and compares the detection value with the high and low values. When the detection value is higher than the high value, the control module controls the shut-off valve 6 to open, thereby connecting the drain pipe 5 and discharging the oil from the oil storage tank 2. When the detection value is lower than the low value, the control module controls the shut-off valve 6 to close, thereby sealing the drain pipe 5.

[0053] Because the internal pressure of the oil storage tank 2 may rise or fall suddenly due to temperature changes, rapid oil collection or discharge, etc. during operation, in order to prevent the oil storage tank 2 from bursting or deforming, this embodiment is equipped with a pressure balancing structure on the oil storage tank 2.

[0054] For example, the pressure balancing structure consists of a pressure relief hole located at the top of the oil storage tank 2. This hole prevents accidental leakage of oil from the tank. By balancing the pressure inside and outside the tank, it avoids sudden pressure spikes that could cause the tank to burst during oil collection and prevents sudden pressure drops that could cause it to collapse during oil discharge. Furthermore, an exhaust pipe can be sealed and connected to the pressure relief hole, thus preventing the accumulation of oil and gas that could pose a safety hazard.

[0055] In other feasible embodiments, the pressure balancing structure can also be a breather valve 7 installed on the top of the oil storage tank 2. The breather valve 7 is installed on the top of the oil storage tank 2 to prevent accidental leakage of oil inside the tank. When the pressure inside the oil storage tank 2 exceeds a set safety value, the breather valve 7 automatically opens, thereby reducing the internal pressure and preventing the oil storage tank 2 from bursting due to overpressure. When the pressure inside the oil storage tank 2 is lower than the set safety value, the breather valve 7 automatically opens, allowing external air to enter to balance the internal pressure and prevent the oil storage tank 2 from being crushed by atmospheric pressure. It should be noted that the safety valve is a commonly used existing device, and its structure will not be described in detail here.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A fan box transformer oil collection device, characterized in that, include: An oil collection tank (1) is placed below the transformer, and the projection of the transformer falls on the oil collection tank (1). An oil storage tank (2) is provided, wherein the oil collection trough (1) is connected to the oil storage tank (2), and the oil storage tank (2) is cylindrical. The limiting bracket (4) includes a frame (41) and at least two limiting rods (42). The side of the frame (41) in the width direction is U-shaped. At least two limiting rods (42) are spaced apart along the length direction of the frame (41). The two ends of the limiting rods (42) are respectively fixed to the two sides of the frame (41) in the width direction. The limiting rods (42) are arc-shaped with a concave middle area. The oil storage tank (2) is horizontally supported by at least two limiting rods (42), and the outer wall of the oil storage tank (2) is limited to the limiting rods (42) along its circumference.

2. The oil collection device for a fan box transformer according to claim 1, characterized in that, The outer wall of the oil storage tank (2) is provided with a plurality of limiting grooves (21) spaced apart along its length. The limiting grooves (21) are pressed along the radial direction of the oil storage tank (2), and at least two limiting rods (42) are respectively circumferentially locked in at least two of the limiting grooves (21).

3. The oil collection device for a fan box transformer according to claim 1, characterized in that, The frame (41) includes two side frames (411) and two connecting rods (412). The two side frames (411) are arranged opposite to each other. The side frames (411) are square and include a bottom rod (4111) connected end to end, a first side rod (4112), a top rod (4113) and a second side rod (4114). The two connecting rods (412) are spaced apart along the length direction of the bottom rod (4111), and the two ends of the connecting rods (412) are respectively fixed to the side of the two bottom rods (4111) that are close to each other. At least two limiting rods (42) are spaced apart along the length direction of the bottom rod (4111), and the two ends of the limiting rods (42) are respectively fixed to the side of the two top rods (4113) that are close to each other.

4. The oil collection device for a fan box transformer according to claim 1, characterized in that, The wind turbine box transformer oil collection device also includes a guide pipe (3), a diversion hole is opened on the side of the oil collection tank (1), an oil collection hole is opened on the top of the oil storage tank (2), and the two ends of the guide pipe (3) are respectively sealed and connected to the diversion hole and the oil collection hole.

5. The oil collection device for a fan box transformer according to claim 1, characterized in that, A pressure relief hole is provided at the top of the oil storage tank (2), the pressure relief hole is sealed and connected to an exhaust pipe, and the exhaust pipe is connected to an exhaust gas outlet; and / or, A breather valve (7) is installed on the top of the oil storage tank (2).

6. The oil collection device for a fan box transformer according to claim 1, characterized in that, The bottom of the oil storage tank (2) has an oil drain hole, which is sealed and connected to one end of the oil drain pipe (5). The other end of the oil drain pipe (5) is connected to the oil pool, and the oil drain pipe (5) is equipped with a shut-off valve (6).

7. The oil collection device for a fan box transformer according to claim 1, characterized in that, An observation window is provided on at least one side of the oil storage tank (2) along its length.

8. The oil collection device for a fan box transformer according to claim 1, characterized in that, An oil level monitor is installed on the top of the inner wall of the oil storage tank (2), and the oil level monitor is configured to monitor the oil level of the oil storage tank (2) in real time.

9. The oil collection device for a fan box transformer according to claim 6, characterized in that, The shut-off valve (6) is a solenoid valve. The fan box transformer oil collection device also includes a control module. The shut-off valve (6) is connected to the control module. The control module is configured to control the opening and closing of the shut-off valve (6).

10. The fan box transformer oil collection device according to claim 9, characterized in that, It also includes a data module, which pre-stores high and low values. The data module is connected to the oil level monitor installed on the top of the inner wall of the oil storage tank (2) and the control module. The data module is configured to receive the detection value of the oil level monitor and compare the detection value with the high and low values. When the detection value is higher than the high value, the control module controls the shut-off valve (6) to open until the detection value is lower than the low value, at which point the control module controls the shut-off valve (6) to close.

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