A wind turbine gearbox oil leakage detection device

Abstract

A wind turbine gearbox oil leakage detection device, characterized in that it comprises: a gear body; a lubricant pipe connected to the gearbox housing; a lubricant cooling device provided above the gearbox body and connected to the lubricant pipe, the lubricant cooling device being used to dissipate heat from the lubricant in the wind turbine gearbox; wherein the lubricating fluid heat dissipation device is provided with a leakage detection module within the lubricating fluid heat dissipation device, wherein the leakage detection module is used to detect the lubricating fluid oil volume within the gear box, and wherein the leakage detection module is further used to detect the lower end of the gear box.

Description

Technical area

[0001] This utility model relates to the technical field of gear oil leakage detection and heat dissipation, in particular to a wind turbine gear oil leakage detection device. Technology in the background

[0002] With the rapid development of wind energy technology, the problems of heat dissipation and oil leakage from wind turbine gearboxes have become a focus of industry attention. The gearbox in a wind turbine plays a key role in converting wind energy into electricity, but its operation generates a great deal of heat due to the meshing and wear of the gears, requiring a lubricant to maintain the gears' normal operating temperature.

[0003] Currently, the entire shell is mainly used for heat dissipation to cool the gearbox, but this does not meet the internal heat dissipation requirements of the gearbox. Due to the limited cooling effect of the casing, it is difficult to completely reduce the lubricant temperature inside the gearbox, thus limiting the cooling efficiency of the gearbox. At the same time, gear oil leakage also brings certain problems to the wind turbine. Gearboxes require sufficient lubricant to reduce friction and wear during operation. However, if the lubricant leaks or is insufficient, it will lead to an increase in friction between the gears, which in turn affects the normal operation of the gearbox and the operational stability of the unit. Content of the utility model

[0004] To solve the above problem, the present application provides a wind turbine gear oil leakage detection device comprising: A gear body; A lubricant pipe connected to the gearbox body; A lubricant cooling device provided above the gearbox body and connected to the lubricant pipe, the lubricant cooling device being used to dissipate heat from the lubricant in the wind turbine gearbox;

[0005] Wherein the lubricating fluid heat dissipation device is internally provided with a leakage detection module, wherein the leakage detection module is used to detect the level of lubricating fluid oil within the gear box, wherein the leakage detection module is also used to detect the lower end of the gear box.

[0006] Furthermore, the cooling element for the lubricant includes: A heatsink housing; A coolant heat dissipation unit provided on the heat dissipation housing, the coolant heat dissipation unit serving to dissipate heat from the lubricant pipe; A fan unit provided on the heat dissipation case, the fan unit being used to dissipate heat from the lubricant pipe and the coolant heat dissipation unit.

[0007] The coolant unit also includes: A coolant heat dissipation pipe provided within the heat dissipation housing, the coolant heat dissipation pipe serving to absorb heat from the lubricant pipe by contact; A coolant circulation tank provided above the outer side of the heat sink and connected to the coolant heat pipe, the coolant circulation tank serving both to store coolant and to circulate the coolant flow.

[0008] Furthermore, the lubricant pipe is provided horizontally within the heat sink, the coolant heat sink pipe is provided vertically within the heat sink, and the lubricant pipe and the coolant heat sink pipe are provided in staggered turns.

[0009] The fan unit also includes: An inlet fan provided at the bottom of the heatsink, the inlet fan serving to introduce cold air from outside the heatsink into the interior of the heatsink An exhaust fan provided on the top of the heatsink, the exhaust fan serving to draw clean air from the inside of the heatsink to the outside of the heatsink.

[0010] Furthermore, the lubricating oil line is connected to an oil feed pump, wherein the oil feed pump serves to feed lubricating oil;

[0011] The lubricating oil line is equipped with an oil temperature sensor, which serves to detect the temperature of the lubricating oil.

[0012] Furthermore, the heatsink is provided with heat dissipation holes on both sides of the heatsink, and the heat dissipation holes are provided with a dust net.

[0013] Further, a support column is provided between the gear housing and the heat dissipation housing, and a heat dissipation opening is provided on the support column.

[0014] The fluid leak detection module also includes: A signal transmitting unit, one end of which is attached to the inside of the heat sink, the signal transmitting unit being connected to the heat sink;

[0015] A level sensor having one end connected to the signal transmitting unit, the other end of the level sensor being disposed through the gear body inside the gear body, the level sensor being used to detect the liquid level of the lubricating liquid inside the gear body;

[0016] An oil liquid detector mounted at the lower end of the gear body, the oil liquid detector being connected to the signal transmitting unit, the oil liquid detector being for detecting whether or not the lubricating oil is stored at the lower end of the gear body.

[0017] The utility model discloses a wind turbine gear oil leakage detection device, the advantageous effect of which is: The utility model uses air-cooled and water-cooled cooling structures to physically cool the lubricating oil in the gearbox. The cooling effect is better than that of a single cooling method. It can quickly cool the lubricating oil, thereby improving the cooling efficiency of the wind turbine gearbox. Second, the cooled lubricant returns to the wind turbine gearbox and then cools the gears in the wind turbine gearbox, preventing the gears from interlocking and wearing, generating a large amount of heat and causing the gears to malfunction, and also improving the efficiency of the wind turbine gearbox.At the same time, the level sensor detects the lubricant level in the gearbox, allowing real-time monitoring of the lubricant condition. The oil detector detects whether the lubricant is stored at the bottom of the gearbox body. This allows the signal sending unit to timely detect whether the lubricant is insufficient or leaking, and notify the operator in a timely manner so that appropriate maintenance measures can be taken to ensure normal lubrication of the gearbox and avoid mechanical failures and damage caused by insufficient lubrication. Description of the attached drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the accompanying drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the accompanying drawings in the following description are only some embodiments of the utility model, and other accompanying drawings can be obtained according to these drawings for persons with ordinary skill in the art without performing any creative work. Fig. 1 is a schematic diagram of the structure of a wind turbine gear oil leakage detection device as described in the present utility model. Fig. 2 is a schematic plan view showing the arrangement of lubricant pipes and coolant cooling pipes in a cooling box of a wind turbine gear oil leakage detection device as described in the present utility model.

[0019] The attached symbols are described as follows: 1, Gearbox body; 2, Lubricating oil pipe; 3, Heat dissipation box; 4, Coolant heat dissipation pipe; 5, Coolant circulation box; 6, Intake fan; 7, Exhaust fan; 8, Oil feed pump; 9, Oil temperature sensor; 10, Heat dissipation holes; 11, Support column. Detailed description

[0020] The following specific embodiments of the present utility model are described in more detail in conjunction with the accompanying drawings and embodiments. The following embodiments serve to illustrate the present utility model, but are not intended to limit the scope of application of the present utility model.

[0021] In the description of the present application, it is understood that the terms "center," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like denote an orientation or positional relationship based on the orientation or positional relationship illustrated in the accompanying drawings and are used only to facilitate the description of the present application and to simplify the description. They are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed, and operate in a particular orientation, and are therefore not to be construed as limiting the present application.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply a relative importance or an implicit determination of the number of technical features specified. Consequently, a feature defined by the terms "first" and "second" may explicitly or implicitly encompass one or more such features. In the description of this application, "more than one" means two or more, unless otherwise specified.

[0023] In the description of the present application, it should be noted that the terms "installed," "connected," and "attached" are to be understood in their broadest sense, e.g., as fixedly, detachably, or integrally connected, unless expressly stated and limited otherwise. The connection may be mechanical or electrical; it may be direct or indirect via an intermediate medium, or it may be a connection within the two elements. The specific meaning of the above terms in the present application will be understood by a person skilled in the art in certain cases.

[0024] As in Fig.1, some embodiments of the present application provide a wind turbine gearbox oil leakage detection device comprising: a gearbox body 1; a lubricant pipe 2 connected to the gearbox body 1; a lubricant heat dissipation device disposed above the gearbox body 1 and connected to the lubricant pipe 2, and wherein the lubricant heat dissipation device is used to dissipate lubricating oil in the wind turbine gearbox; wherein the lubricating fluid heat dissipation device is provided with a leakage detection module within the lubricating fluid heat dissipation device, wherein the leakage detection module is used to detect the liquid level of the lubricating fluid oil within the gearbox body 1, and wherein the leakage detection module is also used to detect the lower end of the gearbox body 1.

[0025] Furthermore, the physical cooling of the lubricating oil in the gearbox by means of the air-cooled and water-cooled cooling structures combined with each other has a better cooling effect than single cooling methods and can quickly cool the lubricating oil, thereby improving the cooling efficiency of the wind turbine gearbox. Second, the cooled lubricant returns to the wind turbine gearbox and then cools the gears in the wind turbine gearbox, thereby preventing the gears from meshing and abrasion, which generates a large amount of heat and prevents the gears from working normally, and also improves the working efficiency of the wind turbine gearbox. At the same time, the leakage detection module can detect the fluid level of the lubricant in the gearbox body 1 and timely detect any leakage or overconsumption of lubricant.Helps provide early warning of lubrication system problems and avoid damage and failure caused by insufficient lubricant, combined with the detection of the bottom of the gearbox and the timely detection of bottom-end leakage to help maintenance personnel take timely measures to avoid further lubricant leakage leading to environmental pollution and a decline in lubrication effect.

[0026] In some embodiments of the present application, a wind turbine gear oil leakage detection device is provided, wherein the lubricant heat dissipation unit comprises: a heat dissipation box (3); a coolant heat dissipation unit provided on the heat dissipation box (3), the coolant heat dissipation unit being used to dissipate heat from the lubricant pipe 2; a fan unit provided on the heat dissipation box 3, the fan unit being used to dissipate heat from the lubricating oil pipe 2 and the coolant heat dissipation unit.

[0027] In some embodiments of the present application, a wind turbine gear oil leakage detection device is provided, wherein the coolant heat dissipation unit comprises: a coolant heat dissipation pipe 4 provided inside the heat dissipation box 3, wherein the coolant heat dissipation pipe 4 is used to pass through the contact to absorb the heat of the lubricant pipe 2; a coolant circulation box 5 provided above the outside of the heat dissipation box 3 and connected to the coolant heat dissipation pipe 4, wherein the coolant circulation box 5 is used for both storing coolant and circulating the coolant flow.

[0028] In some embodiments of the present application, a wind turbine gear oil leakage detection device is provided, wherein the lubricant pipe 2 is provided horizontally within the heat dissipation box 3, the coolant heat dissipation pipe 4 is provided vertically within the heat dissipation box 3, and the lubricant pipe 2 and the coolant heat dissipation pipe 4 are wound and provided in a staggered manner.

[0029] Specifically, the lubricant pipe 2 is wound horizontally in the heat dissipation box 3, while the coolant heat sink 4 is wound vertically, and the coolant heat dissipation pipe 4 is arranged between the lubricant pipes 2, which increases the contact area between the coolant heat dissipation pipe 4 and the lubricant pipes 2 and can quickly cool the lubricant in the lubricant pipes 2.

[0030] In some embodiments of the present application, a wind turbine gear oil leakage detection device is provided, wherein the fan unit comprises: an inlet fan 6 disposed at the bottom of the heat dissipation box 3, the inlet fan 6 being used to introduce cool air from the outside of the heat dissipation box 3 into the inside of the heat sink 3; an exhaust fan 7 provided at the top of the heat sink 3, the exhaust fan 7 serving to draw cool air from the inside of the heat dissipation box 3 to the outside of the heat dissipation box 3.

[0031] Specifically, since warm air flows from the bottom to the top, the intake fan 6 is mounted on the bottom of the heat dissipation box 3 to introduce cold air into the heat dissipation box 3. The cool air becomes warm air when the introduced cold air cools the lubricant pipe 2 and the coolant heat dissipation pipe 4. The warm air inside the heat dissipation box 3 is then exhausted to the outside of the heat dissipation box 3 by the exhaust fan 7 provided on the top of the heat dissipation box 3, thereby achieving the purpose of rapid heat dissipation.

[0032] In some embodiments of the present application, a wind turbine gearbox oil leakage detection device is provided, wherein the lubricant pipe 2 is connected to an oil transfer pump 8, the oil transfer pump 8 being used to transfer lubricating oil; the lubricant pipe 2 is provided with an oil temperature sensor 9, the oil temperature sensor 9 being used to detect the temperature of the lubricating oil.

[0033] Specifically, the oil temperature sensor 9 is provided at the oil inlet portion of the lubricant pipe 2 to detect the temperature of the lubricating oil before cooling, and when the temperature of the lubricating oil exceeds a preset temperature, the lubricant cooling device cools the lubricating oil.

[0034] In some embodiments of the present application, a wind turbine gear oil leakage detection device is provided, wherein the heat dissipation holes 10 are provided on both sides of the heat dissipation box 3 and a dust net is provided within the heat dissipation holes 10.

[0035] In particular, a plurality of heat dissipation holes 10 are provided evenly on both sides of the heat dissipation box 3, and a dustproof net is provided inside the heat dissipation holes 10 to prevent the intrusion of dust.

[0036] In some embodiments of the present application, a wind turbine gearbox oil leak detection device is provided, a support column 11 is provided between the gearbox body 1 and the heat dissipation box 3, and a heat dissipation port is provided on the support column 11.

[0037] In some embodiments of the present application, the oil leak detection module includes: a signal transmitting unit, a liquid level sensor, and an oil detector; the signal transmitting unit is provided with one end of the signal transmitting unit on the inside of the heat dissipation box 3, and the signal transmitting unit is connected to the heat dissipation box 3; the level sensor is connected to the signal transmitting unit at one end, and the other end of the level sensor is arranged inside the transmission body 1, and the level sensor is used to detect the lubricant level inside the transmission body 1; the oil liquid detector is arranged at the lower end of the transmission body 1, the oil liquid detector is connected to the signal transmitting unit, and the oil liquid detector is used to detect whether lubricating oil is stored at the lower end of the transmission body 1.

[0038] In summary, the utility model discloses a wind turbine gearbox oil leakage detection device, comprising: a gearbox body 1; a lubricant pipe 2 connected to the gearbox body 1; a lubricant cooling device arranged above the gearbox body 1 and connected to the lubricant pipe 2. The lubricant cooling device is used to dissipate the heat of the lubricant in the wind turbine gearbox body. This practical new method uses air-cooled and water-cooled two cooling structures to cooperate with each other to physically cool the lubricating oil in the gearbox. The cooling effect is better than only one cooling method, and the lubricating oil can be quickly cooled, thus improving the cooling efficiency of the wind turbine gearbox cooling work.Second, the cooled lubricant returns to the wind turbine gearbox, and then cools the gear inside the wind turbine gearbox, preventing gear meshing and wear, which generates excessive heat and prevents the gears from operating normally, and also improves the efficiency of the wind turbine gearbox. At the same time, the fluid level sensor detects the fluid level of the lubricant in the gearbox, allowing real-time monitoring of the lubricant condition. The oil detector is used to detect whether lubricant is stored at the bottom of the gearbox body.In order to ensure that the signal transmitting unit can detect the lack or leakage of lubricant and other problems in a timely manner, the operator is notified in a timely manner so that he can take appropriate maintenance measures to ensure the normal lubrication of the gearbox and avoid mechanical failures and damage caused by insufficient lubrication.

[0039] Those skilled in the art will understand that the foregoing represents only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the above embodiments, it is possible for those skilled in the art to modify the technical solutions recorded in the above embodiments or to substitute some of the technical features contained therein with equivalents. Any modification, equivalent substitution, improvement, etc., made within the spirit and principles of the utility model falls within the scope of protection of the utility model.

Claims

[1] A wind turbine gearbox oil leak detection device, characterized by that it includes: a gear body; a lubricant pipe connected to the gearbox housing; a lubricant cooling device provided above the gearbox body and connected to the lubricant pipe, wherein the lubricant cooling device is used to dissipate heat from the lubricant in the wind turbine gearbox; wherein the lubricating fluid heat dissipation device is provided with a leakage detection module within the lubricating fluid heat dissipation device, wherein the leakage detection module is used to detect the lubricating fluid oil volume within the gearbox, and wherein the leakage detection module is further used to detect the lower end of the gearbox. [2] Wind turbine gearbox oil leak detection device according to claim 1, characterized by, that the lubricating fluid heat dissipation device includes: a heat dissipation housing; a coolant heat dissipation unit provided on the heat dissipation box, wherein the coolant heat dissipation unit is used to dissipate heat from the lubricant pipe; a blower unit provided on the heat dissipation housing, wherein the blower unit serves to dissipate heat from the lubricating oil pipe and the coolant heat dissipation unit. [3] A wind turbine gearbox oil leak detection device according to claim 2, characterized by , that the coolant heat dissipation unit includes: a coolant heat dissipation tube provided inside the heat dissipation box, wherein the coolant heat dissipation tube is used to absorb heat from the lubricating oil tube by contact; a coolant circulation box provided above the outside of the heat dissipation box and connected to the coolant heat dissipation pipe, the coolant circulation box being used both for storing coolant and for circulating the coolant flow. [4] A wind turbine gearbox oil leak detection device according to claim 3, characterized by , that the lubricating oil pipe is arranged horizontally inside the heat dissipation box, the coolant heat dissipation pipe is arranged vertically inside the heat dissipation box, and the lubricating oil pipe and the coolant heat dissipation pipe are wound and arranged offset. [5] A wind turbine gearbox oil leak detection device according to claim 2, characterized by , that the fan unit includes the following: an inlet fan provided at the bottom of the heat sink, wherein the inlet fan serves to introduce cold air from the outside of the heat sink into the interior of the heat sink; an exhaust fan provided on the top of the heat sink box, the exhaust fan serving to draw clean air from the inside of the heat sink box to the outside of the heat sink box. [6] A wind turbine gearbox oil leak detection device according to claim 1, characterized by , that the lubricating oil line is connected to an oil transfer pump and the oil transfer pump is used to transfer lubricating oil; The lubricating oil line is equipped with an oil temperature sensor, and the oil temperature sensor is used to measure the temperature of the lubricating oil. [7] A wind turbine gearbox oil leak detection device according to claim 2, characterized bythat the heat sink is provided with heat dissipation holes on both sides of the heat sink and that the heat dissipation holes are covered with a dustproof mesh. [8] A wind turbine gearbox oil leak detection device according to claim 2, characterized by that a support column is provided between the gearbox body and the heat dissipation box and that a heat dissipation opening is provided on the support column. [9] A wind turbine gearbox oil leak detection device according to claim 2, characterized by , that the leakage detection module includes: a signal transmission unit, one end of which is provided on the inside of the heat dissipation box, and the signal transmission unit is connected to the heat dissipation box; a level sensor, one end of which is connected to the signal transmission unit, the other end of the level sensor being screwed to the gearbox body, which is located inside the gearbox body, the level sensor being used to detect the volume of the lubricating fluid inside the gearbox body; an oil detector provided at the lower end of the gearbox body, wherein the oil detector is connected to the signal transmitting unit, wherein the oil detector is used to detect whether the lubricating fluid is present at the lower end of the gearbox body.

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