Oil receiving disc device and wind turbine generator
By designing closed oil storage parts and oil outlet structures in the wind turbine, the problem of oil leakage and flammable in the gearbox is solved, the fire risk is reduced, and regular cleaning is achieved through the oil pipe and oil discharge port, improving the safety of the wind turbine Sex and stability.
Patent Information
- Application Number
- CN202420012532.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-01-02
AI Technical Summary
Oil leakage in the gearbox in the wind turbine is prone to aging in the open oil coupling pan and the ignition point is reduced, resulting in spark risk and fire hazards.
An oil coupling disk device is designed, which includes a closed oil storage piece and oil outlet. The oil leakage flows into the oil storage chamber through the oil outlet, isolates the brake parts and air at the high-speed shaft, reduces the risk of fire, and passes through the oil pipe and oil discharge. Regular cleaning of the port.
It effectively reduces the probability of oil leakage and ignites, improves the safety of the wind turbine, and ensures the stable operation of the system through the closed structure and regular cleaning mechanism.
Smart Images
Figure CN222254997U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wind turbine equipment, in particular to an oil receiving pan device and a wind turbine. Background Art
[0002] The oil leakage problem of the wind turbine will affect the safe operation of the wind turbine, and there are multiple potential oil leakage points at the gear box. In the prior art, an oil receiving pan is fixed on the legs at the bottom of the gear box, and the oil leakage of the gear box is stored in the oil receiving pan.
[0003] After the oil pan of this structure receives the leaked oil, the leaked oil is directly stored in the receiving groove on the top of the oil pan. As the oil ages, its ignition point decreases, and there are sparks at locations such as the gearbox high-speed brake shaft. The oil in the oil pan is close to the gearbox high-speed brake shaft and contacts the air, posing a fire risk. Utility Model Content
[0004] In view of this, the utility model provides an oil receiving pan device and a wind turbine generator set to solve the problem of fire risk caused by oil being stored in an open oil receiving pan in the prior art.
[0005] In a first aspect, the utility model provides an oil receiving pan device, comprising:
[0006] The oil receiving pan body has a receiving groove on the top suitable for receiving the oil leaked from the gear box; the oil receiving pan body is provided with an oil outlet connected with the receiving groove;
[0007] The oil storage component is closed and has an oil storage cavity; the oil storage cavity is located below the receiving groove, and the oil outlet is connected to the oil storage cavity; the leaked oil received in the receiving groove is suitable for flowing into the oil storage cavity through the oil outlet.
[0008] Beneficial effect: When the oil receiving pan device of this structure is used, it is suitable for being arranged below the gearbox of the wind turbine to receive the oil leakage of the gearbox. The oil receiving pan device arranges an oil storage part with a closed structure below the receiving groove, and the leaked oil received in the oil receiving pan body flows to the oil outlet, and then flows into the oil storage cavity through the oil outlet. The oil receiving pan body only collects and guides the oil, and does not store the oil. At the same time, because the oil storage part is in a closed state, the oil storage cavity is isolated from the parts prone to sparks such as the brake part of the high-speed shaft of the gearbox and the air outside it, so as to greatly reduce the probability of oil leakage and ignition and improve safety.
[0009] In an optional embodiment, it further includes a first oil pipe, wherein two ends of the first oil pipe are respectively connected to the oil outlet and the oil storage chamber.
[0010] Beneficial effects: Only a small hole for the first oil pipe to be inserted into the oil storage part is needed to ensure the sealing degree of the oil storage part, so as to isolate the oil in the oil storage cavity from the parts of the gear box that are prone to sparks; at the same time, the oil outlet can also be set to a size that can be docked with the first oil pipe to prevent the oil outlet from being too large to affect the overall strength of the oil receiving pan body. The leaked oil is guided to the oil storage cavity through the first oil pipe, and the structure is simple and easy to set up.
[0011] In an optional embodiment, a switch element for controlling the opening and closing of the channel of the first oil pipe is provided on the first oil pipe.
[0012] Beneficial effect: During operation, the on and off of the switch can be controlled according to actual needs. In normal state, the switch is in a normally open state, ensuring that the leaked oil in the receiving tank can flow into the receiving cavity at any time.
[0013] In an optional embodiment, the oil storage member is provided with an oil discharge port, and the oil storage member is suitable for being detachably mounted on a support; or the oil discharge port is suitable for being connected to a second oil pipe, and a pump body is provided on the second oil pipe.
[0014] Beneficial effect: It is convenient to install and remove the oil storage parts. The oil receiving tray device is installed in the nacelle of the wind turbine. When the oil storage part is full of oil, close the ball valve, remove the oil storage part, and pour out the leaked oil through the oil discharge port conveniently and quickly. Clean the leaked oil regularly to transport the leaked oil out of the wind turbine to reduce the probability of fire in the wind turbine.
[0015] When the oil storage part is full of oil, the leaked oil in the oil storage cavity is pumped out of the oil storage part and the engine room cover through the pump body and the second oil pipe, so as to clean the leaked oil in the oil storage cavity conveniently and quickly.
[0016] In an optional embodiment, the oil storage component is in the shape of a square shell.
[0017] Beneficial effect: The bottom area of the oil storage part is relatively large, so it is easy to be stably fixed on the bottom plate of the cabin cover.
[0018] In an optional embodiment, an oil level alarm mechanism for detecting the liquid level in the oil storage cavity is provided in the oil storage member.
[0019] Beneficial effect: To provide early warning and prompt operation and maintenance.
[0020] In an optional embodiment, a mounting member is further included, wherein the mounting member is disposed on a side of the oil receiving pan body facing away from the accommodating groove, and the mounting member is suitable for being fixed on a support located below the gear box.
[0021] Beneficial effect: The oil pan body is fixed on a support instead of a gear box, so as to decouple the vibration of the oil pan body and the gear box, and prevent the oil pan body from vibrating and leaking oil. The support is a cabin cover bottom plate, and the mounting piece is fixed on the cabin cover bottom plate.
[0022] In an optional embodiment, the oil receiving pan body is arranged to be inclined, and the inclination direction of the oil receiving pan body is adapted to be consistent with the inclination direction of the wind power transmission chain of the wind turbine generator set.
[0023] Beneficial effect: It is convenient for arranging and assembling the oil pan body.
[0024] In a second aspect, the utility model further provides a wind turbine generator set, comprising any one of the above-mentioned oil receiving pan devices and a gear box, wherein the oil receiving pan body is located below the gear box. Since the wind turbine generator set comprises the oil receiving pan device, it has the same effect as the oil receiving pan device, and will not be described in detail here.
[0025] In an optional embodiment, a nacelle cover is further included, the oil receiving pan device and the gear box are arranged in the nacelle cover, and a mounting member is provided on a side of the oil receiving pan body facing away from the accommodating groove, and the mounting member is fixed on the nacelle cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0027] Figure 1 This is a schematic diagram of an oil receiving pan device according to an embodiment of the utility model from a first angle;
[0028] Figure 2 This is a second angle schematic diagram of an oil receiving pan device according to an embodiment of the utility model.
[0029] Description of reference numerals:
[0030] 1. Oil receiving pan body; 101. Receiving groove; 102. Oil outlet; 103. Reinforcing rib; 104. Handle; 105. Bottom support plate; 106. Side plate; 2. Oil storage part; 3. First oil pipe; 4. Mounting part. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0032] Combine the following Figure 1 to Figure 2 , describing an embodiment of the utility model.
[0033] According to an embodiment of the utility model, on the one hand, an oil receiving pan device is provided, which includes an oil receiving pan body 1 and an oil storage member 2, wherein the top of the oil receiving pan body 1 has a receiving groove 101 suitable for receiving oil leakage from the gear box; the oil receiving pan body 1 is provided with an oil outlet 102 connected to the receiving groove 101; the oil storage member 2 is closed, and the oil storage member 2 has an oil storage cavity; the oil storage cavity is located below the receiving groove 101, and the oil outlet 102 is connected to the oil storage cavity; the leaked oil received in the receiving groove 101 is suitable for flowing into the oil storage cavity through the oil outlet 102.
[0034] When the oil receiving pan device of this structure is used, it is suitable for being arranged below the gearbox of the wind turbine to receive the oil leakage of the gearbox. The oil receiving pan device arranges the oil storage member 2 of the closed structure below the receiving groove 101, and the leaked oil received in the oil receiving pan body 1 flows to the oil outlet 102, and then flows into the oil storage chamber through the oil outlet 102. The oil receiving pan body 1 only collects and guides the oil, and does not store the oil. At the same time, because the oil storage member 2 is in a closed state, the oil storage chamber is isolated from the parts prone to sparks such as the brake part of the high-speed shaft of the gearbox and the air outside it, so as to greatly reduce the probability of oil leakage and ignition, and improve safety.
[0035] like Figure 1 and Figure 2 As shown, in one embodiment, the oil receiving pan device further includes a first oil pipe 3, and the two ends of the first oil pipe 3 are connected to the oil outlet 102 and the oil storage chamber respectively. The leaked oil in the receiving groove 101 flows into the oil storage chamber through the first oil pipe 3, so that only a small hole for the first oil pipe 3 to be inserted is required on the oil storage member 2, which is conducive to ensuring the sealing degree of the oil storage member 2, so as to isolate the oil in the oil storage chamber from the parts of the gear box that are prone to sparks; at the same time, the oil outlet 102 can also be set to a size that can be docked with the first oil pipe 3, so as to prevent the oil outlet 102 from being too large to affect the overall strength of the oil receiving pan body 1. The leaked oil is guided to the oil storage chamber through the first oil pipe 3, and the structure is simple and easy to set.
[0036] Optionally, in this embodiment, the oil outlet end of the first oil pipe 3 extends into the oil storage cavity, and the outer wall of the first oil pipe 3 is in sealing contact with the inner wall of the oil inlet hole on the oil storage member 2 .
[0037] Alternatively, if Figure 1 As shown, in this embodiment, the first oil pipe 3 is an L-shaped pipe, the oil storage part 2 is arranged on the front lower side of the oil receiving pan body 1, one end of the horizontal portion of the first oil pipe 3 is connected to the oil outlet 102, and the vertical portion of the first oil pipe 3 is connected to the oil storage chamber.
[0038] In other embodiments, the first oil pipe 3 may not be provided, the oil receiving pan body 1 is tilted toward one side as a whole, the oil outlet 102 is provided at the lowest position of the oil receiving pan body 1, the oil outlet 102 directly extends into the oil storage cavity and remains sealed with the oil storage member 2 to ensure the sealing degree of the oil storage member 2.
[0039] Optionally, in one embodiment, a switch for controlling the opening and closing of the channel is provided on the first oil pipe 3. During operation, the opening and closing of the switch can be controlled according to actual needs. In a normal state, the switch is in a normally open state, ensuring that the leaked oil in the receiving groove 101 can flow into the receiving cavity at any time.
[0040] For example, the switch component is a ball valve. In other embodiments, the switch component may also be a gate valve or a stop valve.
[0041] In other embodiments, the switch element may not be provided, and the first oil pipe 3 and the oil storage chamber are always connected. When the oil storage element 2 is full of oil, it can be cleaned.
[0042] Optionally, in one embodiment, an oil discharge port (not shown in the figure) is provided on the oil storage member 2, and the oil storage member 2 is suitable for being detachably mounted on a support to facilitate installation and removal of the oil storage member 2. The oil receiving tray device is installed in the nacelle cover of the wind turbine. When the oil storage member 2 is full of oil, the ball valve is closed, and the oil storage member 2 is removed, and the leaked oil can be easily and quickly poured out through the oil discharge port. The leaked oil is cleaned regularly to transport the leaked oil out of the wind turbine to reduce the probability of fire in the wind turbine. After the oil storage member 2 is cleaned, it is installed and reset, and then the ball valve is opened to connect the receiving groove 101 to the oil storage chamber to ensure that the oil collected by the oil receiving tray body 1 flows into the oil storage member 2 at any time.
[0043] In this embodiment, when the oil storage member 2 is installed on the support, the oil discharge port is blocked by a plug. Figure 1 and Figure 2 As shown, a mounting plate is provided at the bottom of the oil storage member 2, and the mounting plate is fixed to a support by fasteners such as screws, and the support may be a bottom plate of a cabin cover.
[0044] In other embodiments, the oil discharge port is suitable for connecting to the second oil pipe, and a pump body is provided on the second oil pipe. When the oil storage member 2 is full of oil, the leaked oil in the oil storage cavity is pumped out of the oil storage member 2 and the engine nacelle cover through the pump body and the second oil pipe, so as to conveniently and quickly clean the leaked oil in the oil storage cavity.
[0045] In one embodiment, an oil level alarm mechanism is provided in the oil storage part 2 for detecting the liquid level in the oil storage cavity, so as to provide early warning and prompt operation and maintenance. For example, when the oil in the oil storage part 2 reaches the warning height or the oil storage part 2 is full of oil, the oil level alarm mechanism alarms, and the oil storage part 2 is disassembled to clean the oil leakage or the pump body is operated to discharge the oil. Optionally, the oil level alarm mechanism is a pressure oil level sensor or a capacitive oil level sensor.
[0046] like Figure 1 and Figure 2 As shown, optionally, in one embodiment, the oil storage member 2 is in the shape of a square shell, and its bottom area is relatively large, so as to facilitate stable fixation on the bottom plate of the nacelle cover.
[0047] Optionally, in this embodiment, two mounting plates are provided at the bottom of the oil storage member 2, each mounting plate includes a long strip and two L-shaped bent plates, the long strip is fixed to the bottom of the oil storage member 2, and the two L-shaped bent plates are respectively arranged at both ends of the long strip, and the L-shaped bent plates are wrapped around the bottom corners of the oil storage member 2 to increase the strength of the oil storage member 2, and mounting holes for installing screws are provided at both ends of the long strip.
[0048] The height of the oil storage member 2 is smaller than its width, and the oil storage member 2 is relatively short, so it is convenient to arrange it below the oil receiving pan body 1 .
[0049] The inventors found that the gearbox, as a rotating component, has a certain degree of vibration during operation. The oil pan, as a thin-walled component, has poor rigidity. In the prior art, fixing the oil pan on the gearbox is prone to resonance, causing the oil stored in the oil pan to overflow. If the vibration problem is avoided by increasing the wall thickness of the oil pan, the cost of the oil pan will increase significantly. In order to solve this problem, Figure 1 and Figure 2 As shown, in one embodiment, the oil receiving pan device further comprises a mounting member 4, which is disposed on a side of the oil receiving pan body 1 facing away from the receiving groove 101, and the mounting member 4 is adapted to be fixed on a support located below the gearbox, so as to fix the oil receiving pan body 1 on the support instead of the gearbox, so as to decouple the vibration of the oil receiving pan body 1 and the gearbox, and prevent the oil receiving pan body 1 from vibrating and leaking oil. The support is a cabin cover bottom plate, and the mounting member 4 is fixed on the cabin cover bottom plate.
[0050] Optionally, in this embodiment, the mounting member 4 is a support leg disposed at the bottom of the oil pan body 1, for example, four support legs are provided, and the four support legs are symmetrically arranged in pairs on both sides of the bottom of the oil pan. The support legs can be welded and fixed to the bottom plate of the nacelle cover, or can also be detachably fixed to the bottom plate of the nacelle cover by fasteners.
[0051] like Figure 1 and Figure 2 As shown, the oil receiving pan body 1 includes a bottom support plate 105 and four side plates 106. The bottom support plate 105 is a rectangular plate. Figure 1 As shown, three side plates 106 are erected around the three outer edges of the bottom support plate 105, and the rear side plate 106 is inclined so that oil dripping onto the rear side plate 106 can slide along the inclined surface of the side plate 106 to the bottom support plate 105.
[0052] Since the oil pan body 1 is a thin-walled structure, in order to expand its oil receiving area and oil receiving volume, the area of the oil pan body 1 is often designed to be larger so that it can cover the gearbox rear case oil pump suction port, mechanical pump oil inlet and outlet 102, electric pump oil inlet and outlet 102, and oil filter valve block oil inlet and outlet 102 interface positions, to ensure that the oil pan body 1 collects the leaked oil at the above interface positions. The oil pan body 1 has a large area and a thin wall thickness, which results in insufficient rigidity of the oil pan body 1 and is easily deformed, resulting in oil leakage. To solve this problem, in one embodiment, as Figure 1 and Figure 2 As shown, a plurality of reinforcing ribs 103 are arranged inside the oil receiving pan body 1 to increase the overall rigidity of the oil receiving pan body 1 and prevent deformation and oil leakage.
[0053] like Figure 1 As shown, a handle 104 is provided on the outer wall of the front side plate 106 of the oil receiving pan body 1, so that the oil receiving pan body 1 can be carried by holding the handle 104 when taking or installing.
[0054] Optionally, in this embodiment, if Figure 1 and Figure 2 As shown, two rows of reinforcing ribs 103 are arranged in the front-to-back direction in the oil receiving pan body 1, and two rows of reinforcing ribs 103 are arranged in the left-to-right direction. The multiple reinforcing ribs 103 surround a multiple grooves for accommodating leaked oil. A groove is arranged at the bottom of the reinforcing ribs 103 so that the grooves can be connected. The oil outlet 102 is arranged at the bottom of the side plate 106 located on the front side, and the first oil pipe 3 is correspondingly arranged at the bottom of the side plate 106, so that the leaked oil flows to the groove near the oil outlet 102 and then directly flows out of the oil receiving pan body 1.
[0055] In existing wind turbines, in order to increase the distance between the blade tip and the tower, the entire wind turbine transmission chain including the gear box has an installation inclination angle. Optionally, in order to match the installation inclination angle of the wind turbine transmission chain, in one embodiment, the oil receiving pan body 1 is tilted, and the inclination direction of the oil receiving pan body 1 is suitable to be consistent with the inclination direction of the wind turbine transmission chain of the wind turbine to facilitate the arrangement and assembly of the oil receiving pan body 1.
[0056] According to an embodiment of the present invention, on the other hand, a wind turbine set is provided, comprising the above-mentioned oil receiving pan device and a gear box, wherein the oil receiving pan body 1 is located below the gear box.
[0057] In the wind turbine of this structure, the oil receiving pan body 1 is arranged under the gearbox to receive the oil leakage of the gearbox. The oil receiving pan device is provided with a closed oil storage member 2 under the receiving groove 101 to isolate the oil storage chamber from the parts prone to sparks such as the brake part of the high-speed shaft of the gearbox and the air, so as to greatly reduce the probability of oil leakage and fire, and improve the safety of the wind turbine.
[0058] The wind turbine also includes a nacelle cover, and the oil receiving pan device and the gear box are arranged in the nacelle cover. The side of the oil receiving pan body 1 facing away from the receiving groove 101 is provided with a mounting member 4, and the mounting member 4 is fixed on the nacelle cover, so as to fix the oil receiving pan body 1 on the nacelle cover, so as to decouple the vibration of the oil receiving pan body 1 and the gear box, and prevent the oil receiving pan body 1 from vibrating and leaking oil. For example, the mounting member 4 and the oil storage member 2 are both fixed on the bottom plate of the nacelle cover, the bottom plate of the nacelle cover is arranged horizontally, and the oil storage member 2 is in a square shell shape, so that the oil in the oil storage member 2 remains horizontal.
[0059] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. An oil receiving pan device, characterized in that: include: The oil receiving pan body (1) has a receiving groove (101) on its top suitable for receiving oil leakage from the gear box; the oil receiving pan body (1) is provided with an oil outlet (102) which is in communication with the receiving groove (101); The oil storage member (2) is in a closed shape, and has an oil storage cavity; the oil storage cavity is located below the receiving groove (101), and the oil outlet (102) is connected to the oil storage cavity; the leaked oil received in the receiving groove (101) is suitable for flowing into the oil storage cavity through the oil outlet (102); It also comprises a first oil pipe (3), the two ends of which are respectively connected to the oil outlet (102) and the oil storage chamber. The first oil pipe (3) is provided with a switch element for controlling the opening and closing of the channel.
2. The oil receiving pan device according to claim 1, characterized in that: The oil storage member (2) is provided with an oil discharge port, and the oil storage member (2) is suitable for being detachably mounted on a support; or the oil discharge port is suitable for being connected to a second oil pipe, and a pump body is provided on the second oil pipe.
3. The oil receiving tray device according to claim 1 or 2, characterized in that: The oil storage member (2) is in the shape of a square shell.
4. The oil receiving pan device according to claim 1 or 2, characterized in that: The oil storage component (2) is provided with an oil level alarm mechanism for detecting the liquid level in the oil storage cavity.
5. The oil receiving pan device according to claim 1 or 2, characterized in that: It also comprises a mounting member (4), wherein the mounting member (4) is arranged on a side of the oil receiving pan body (1) facing away from the containing groove (101), and the mounting member (4) is suitable for being fixed on a support located below the gear box.
6. The oil receiving pan device according to claim 1 or 2, characterized in that: The oil receiving pan body (1) is arranged tilted, and the tilting direction of the oil receiving pan body (1) is suitable to be consistent with the tilting direction of the wind power transmission chain of the wind turbine generator set.
7. A wind turbine generator set, characterized in that: It comprises the oil receiving pan device and a gear box according to any one of claims 1 to 6, wherein the oil receiving pan body (1) is located below the gear box.
8. The wind turbine generator set according to claim 7, characterized in that: It also comprises a nacelle cover, the oil receiving pan device and the gear box are arranged in the nacelle cover, and a mounting member (4) is arranged on a side of the oil receiving pan body (1) facing away from the containing groove (101), and the mounting member (4) is fixed on the nacelle cover.