阅读说明：本技术 一种风电机组齿轮箱精确注油装置及方法 (Accurate oil injection device and method for wind turbine generator gearbox ) 是由 冀涛 李洋 叶高明 徐文磊 马传鹏 周立国 于 2021-07-27 设计创作，主要内容包括：本发明公开了一种风电机组齿轮箱精确注油装置,解决了现有技术中注油操作复杂,油液加注困难,计量不准等影响齿轮箱注油的工艺难题,具体方案为包括补液管路、加注管路以及相邻设置的电控柜和循环加热储液罐,所述循环加热储液罐设有外接管路,所述外接管路通过电控L型三通阀与补液管路、加注管路连通,其中,加注管路与外接管路相互正交,用于实现补液与加注或加注与循环加热功能之间的切换；所述循环加热储液罐底部设有排污口,用于废液的排出,循环加热储液罐内部设有液位传感器和温度传感器,用于监测内部油液液位信息以及温度；所述电控柜配置HM I触屏以及PLC控制系统,用于设置不同注油风电机组机型及注油量,自动控制实现精确注油。(The invention discloses a precise oil injection device for a gearbox of a wind turbine generator, which solves the technical problems that the oil injection operation is complicated, the oil injection is difficult, the metering is inaccurate and the like in the prior art and influences the oil injection of the gearbox, and has the specific scheme that the device comprises a liquid supplementing pipeline, a liquid injecting pipeline, an electric control cabinet and a circular heating liquid storage tank which are adjacently arranged, wherein the circular heating liquid storage tank is provided with an external pipeline which is communicated with the liquid supplementing pipeline and the liquid injecting pipeline through an electric control L-shaped three-way valve, and the liquid supplementing pipeline and the liquid injecting pipeline are mutually orthogonal and are used for realizing the switching between the liquid supplementing and injecting functions or the liquid injecting and circular heating functions; a drain outlet is formed in the bottom of the circulating heating liquid storage tank and used for discharging waste liquid, and a liquid level sensor and a temperature sensor are arranged inside the circulating heating liquid storage tank and used for monitoring the liquid level information and the temperature of internal oil; the electric control cabinet is provided with an HM I touch screen and a PLC control system and is used for setting different oil injection wind turbine generator models and oil injection amount, and automatic control is achieved to achieve accurate oil injection.)

1. The accurate oiling device for the wind turbine gearbox is characterized by comprising a liquid supplementing pipeline, a filling pipeline, an electric control cabinet and a circular heating liquid storage tank which are adjacently arranged, wherein the circular heating liquid storage tank is provided with an external pipeline which is communicated with the liquid supplementing pipeline and the filling pipeline through an electric control L-shaped three-way valve, and the filling pipeline is orthogonal to the external pipeline and is used for realizing switching between liquid supplementing and filling or between filling and circular heating functions;

a drain outlet is formed in the bottom of the circulating heating liquid storage tank and used for discharging waste liquid, and a liquid level sensor and a temperature sensor are arranged inside the circulating heating liquid storage tank and used for monitoring the liquid level information and the temperature of internal oil;

the electric control cabinet is provided with an HMI touch screen and a PLC control system and is used for setting different oiling wind turbine generator models and oiling amounts, and automatic control is achieved to achieve accurate oiling.

2. The accurate oiling device for the wind turbine generator gearbox according to claim 1, wherein an oil pan is arranged outside the circulation heating liquid storage tank and used for accommodating an oiling pipeline.

3. The accurate oiling device for a wind turbine generator gearbox as defined in claim 1, wherein said hydronic fluid reservoir is further provided with a fluid observation tube for observing the level of fluid inside said hydronic fluid reservoir.

4. The accurate oiling device for the wind turbine generator gearbox according to claim 1, wherein the oiling pipeline is provided with a drip-proof nozzle and a high-rise oil transportation quick-insertion interface for respectively carrying out gear oil oiling on a workshop assembly fan gearbox and a tower top nacelle gearbox.

5. The accurate oil injection device for the wind turbine gearbox according to claim 1, wherein the liquid injection pipeline is provided with an oil suction rod for inserting a barrel, and a check valve is arranged at the bottom of the oil suction rod for inserting the barrel and used for preventing oil from flowing back.

6. The precise oiling device for a gearbox of a wind turbine generator set as defined in claim 1, wherein the circulation heating liquid storage tank is provided with a heating chamber and a liquid storage chamber which are separated independently for realizing circulation heating.

7. The accurate oiling device for the wind turbine generator gearbox according to claim 1, wherein the circulation heating liquid storage tank is further provided with a safety overflow device, and the safety overflow device is a plate type safety overflow valve and is used for adjusting the overflow pressure.

8. The accurate oiling device for the gearbox of the wind turbine generator set according to claim 7, further comprising an electric gear pump, wherein the electric gear pump is respectively connected with the liquid supplementing pipeline and the filling pipeline.

9. The accurate oiling device for the wind turbine generator gearbox according to claim 8, wherein the oiling pipeline is sequentially connected with the oil outlet filter, the oiling pressure gauge, the high-precision large-flow filter, the speed regulation stop valve and the flow meter, and is used for controlling the oiling pressure, the flow rate and the cleanliness of oil products.

10. The use method of the precise oiling device for the wind turbine generator gearbox according to any one of claims 1 to 9 is characterized by comprising the following steps:

inserting the oil suction rod into the oil drum, and connecting the equipment with a power supply;

the liquid level signal of the circulating heating liquid storage tank is judged through a liquid level sensor, and when the liquid level is lower than a set value, the electric control L-shaped three-way valve is switched to a liquid supplementing pipeline, and a liquid supplementing flow is automatically started;

when the liquid level supplement reaches the upper limit of the circulating heating liquid storage tank, stopping supplementing liquid, detecting by a temperature sensor, switching the electric control L-shaped three-way valve to a circulating heating pipeline when the temperature is lower than a set value, and automatically starting to perform a circulating heating process;

after the temperature of oil meets the filling requirement, a filling process is manually started, an inner pipeline of the oil coiling disc is pulled out, an anti-leakage device is connected with a gear box or a high-rise oil transportation quick connection device and is connected with a high-altitude conveying pipeline, an electric control L-shaped three-way valve is switched to a filling pipeline, the oil is ensured to enter the filling pipeline, pressure is set according to overflow for filling, and the oil is automatically stopped when the oil reaches a set value of the oil filling amount;

and turning off the power supply, arranging the oil pipe and finishing oil injection.

Technical Field

The invention relates to the related technical field of wind driven generators, in particular to a device for accurately filling gear oil into a gear box of a wind turbine generator.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

In the assembly and later-stage operation and maintenance of the wind generating set, gear oil filling is a process link with extremely strict requirements, and has the characteristics of high filling precision, high filling cleanliness, high maintenance cost and the like.

The inventor finds that in the batch assembly production process and the wind farm oil injection link of the existing unit production line, a small independent circulating oil filter is generally used for gear oil injection, a weighing method or a small barrel volume metering method is generally used as a metering mode, repeated transportation exists in the injection process, the weighing operation is complex, the injection result has no data record and other defects, particularly, the wind farm oil injection also has limiting factors such as high-altitude transportation of oil products, too low injection environment temperature and the like, the gear oil injection is time-consuming and labor-consuming, the oil product injection cannot be metered, and the cabin environment is polluted, and the problems become sharp problems for limiting the wind farm operation and maintenance.

Disclosure of Invention

The purpose of this application is to the defect that prior art exists, provides a wind turbine generator system gear box accurate oiling device and method, through possessing circulation heating function liquid storage pot with gear oil temporary storage to carry fluid to the end of filling through electric gear pump and flowmeter and accomplish the filling, improved the precision of filling measurement, temperature when having guaranteed the oil filling, equipment degree of automation is high, has reduced personnel's operation intensity of labour and time.

The invention is realized by the following technical scheme:

the invention provides a precise oiling device for a gearbox of a wind turbine generator, which mainly comprises a liquid supplementing pipeline, a filling pipeline, an electric control cabinet and a circular heating liquid storage tank which are adjacently arranged, wherein the circular heating liquid storage tank is provided with an external pipeline which is communicated with the liquid supplementing pipeline and the filling pipeline through an electric control L-shaped three-way valve, and the filling pipeline and the external pipeline are mutually orthogonal and used for realizing the switching between the functions of liquid supplementing and filling or between the filling and the circular heating;

a drain outlet is formed in the bottom of the circulating heating liquid storage tank and used for discharging waste liquid, and a liquid level sensor and a temperature sensor are arranged inside the circulating heating liquid storage tank and used for monitoring the liquid level information and the temperature of internal oil;

the electric control cabinet is provided with an HMI touch screen and a PLC control system and is used for setting different oiling wind turbine generator models and oiling amounts, and automatic control is achieved to achieve accurate oiling.

As a further technical scheme, an oil coiling disc is arranged outside the circular heating liquid storage tank and used for accommodating a filling pipeline.

As a further technical scheme, the circulation heating liquid storage tank is also provided with a liquid observation pipe for observing the liquid level height inside the circulation heating liquid storage tank.

As a further technical scheme, the filling pipeline is provided with a leakage-proof nozzle and a high-rise oil transportation quick-insertion interface and is used for respectively filling gear oil for a workshop assembly fan gearbox and a tower drum top cabin gearbox.

As a further technical scheme, the liquid supplementing pipeline is provided with an oil suction rod for inserting the barrel, and a check valve is arranged at the bottom of the oil suction rod for preventing oil from flowing back.

As a further technical scheme, the circulation heating liquid storage tank is provided with a heating chamber and a liquid storage chamber which are separated independently and used for realizing circulation heating.

As a further technical scheme, the circulation heating liquid storage tank is also provided with a safety overflow device which is a plate-type safety overflow valve and is used for adjusting the overflow pressure.

As a further technical scheme, the device also comprises an electric gear pump, wherein the electric gear pump is respectively connected with the liquid supplementing pipeline and the filling pipeline.

As a further technical scheme, the filling pipeline is sequentially connected with the oil outlet filter, the filling pressure gauge, the high-precision large-flow filter, the speed regulation stop valve and the flowmeter and is used for controlling filling pressure, flow speed and cleanliness of oil products.

In a second aspect, the invention provides a use method based on the accurate oiling device for the wind turbine gearbox, and the use method specifically comprises the following steps:

inserting the oil suction rod into the oil drum, and connecting the equipment with a power supply;

the liquid level signal of the circulating heating liquid storage tank is judged through a liquid level sensor, and when the liquid level is lower than a set value, the electric control L-shaped three-way valve is switched to a liquid supplementing pipeline, and a liquid supplementing flow is automatically started;

when the liquid level supplement reaches the upper limit of the circulating heating liquid storage tank, stopping supplementing liquid, detecting by a temperature sensor, switching the electric control L-shaped three-way valve to a circulating heating pipeline when the temperature is lower than a set value, and automatically starting to perform a circulating heating process;

after the temperature of oil meets the filling requirement, a filling process is manually started, an inner pipeline of the oil coiling disc is pulled out, an anti-leakage device is connected with a gear box or a high-rise oil transportation quick connection device and is connected with a high-altitude conveying pipeline, an electric control L-shaped three-way valve is switched to a filling pipeline, the oil is ensured to enter the filling pipeline, pressure is set according to overflow for filling, and the oil is automatically stopped when the oil reaches a set value of the oil filling amount;

and turning off the power supply, arranging the oil pipe and finishing oil injection.

The invention has the beneficial effects that:

(1) according to the invention, the gear oil is temporarily stored by the liquid storage tank with the circulating heating function, so that the temperature of the oil product to be filled can be kept at a set temperature, the influence of over-low temperature of the filling environment is avoided, and the environmental adaptability of the filling device is improved.

(2) The HMI and PLC are configured, different oil injection amounts can be set according to different oil injection wind turbine generator models, liquid supplementing, filling and heating work is automatically switched according to set values, automatic control and data storage are achieved, and product tracing and data statistics in the later period are facilitated.

(3) Dispose electronic electric gear pump and safe overflow arrangement, can accurate control filling pressure and velocity of flow, guarantee the high delivery pressure of a tower section of thick bamboo and accurate control of flow to be equipped with oil absorption filter and large-traffic high accuracy filter, effectively guaranteed the cleanliness factor of oil.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic diagram of the overall structure of the gear box oiling device.

FIG. 2 is a schematic side view of the gear box oiling device of the present invention.

FIG. 3 is a schematic diagram of the working principle of the gear box oiling device of the invention.

In the figure, 1, an electric control cabinet, 2, a circulation heating liquid storage tank, 3, an oil coiling disc, 4, a safe overflow device, 5, a high-precision large-flow filter, 6, an electric gear pump, 7, an electric control L-shaped three-way valve, 8, a barrel inserting oil suction rod, 9, a filling pressure gauge, 10, a liquid viewing pipe, 11, a sewage discharge outlet, 12, an oil outlet filter, 13, a speed regulation stop valve, 14 and a flowmeter.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "up", "down", "front", "back" and "upper", "lower", "front", "rear" in the present application are used for the purpose of illustrating the invention and are not intended to limit the structure, but merely to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.

As described in the background art, in the batch assembly production process and the wind farm oiling link of the existing unit production line, problems of inaccurate oiling and metering, low oiling environmental temperature, cabin environment pollution and the like exist, and therefore, a gearbox oiling device for a wind turbine unit is needed to solve the problems.

Example 1

Based on the above problems, the present embodiment discloses an accurate oiling device for a gearbox of a wind turbine generator, the device includes a liquid supplementing pipeline, a filling pipeline, an electric gear pump 6, and an electric control cabinet 1 and a circulation heating liquid storage tank 2 which are adjacently arranged, the circulation heating liquid storage tank is provided with an external pipeline, the external pipeline is communicated with the liquid supplementing pipeline and the filling pipeline through an electric control L-shaped three-way valve 7 and is respectively connected with the electric gear pump, wherein the filling pipeline and the external pipeline are mutually orthogonal, because the L-shaped three-way valve can only connect two mutually orthogonal pipelines, the mutual connection of the third pipeline cannot be maintained at the same time, and only the distribution function is performed, therefore, the switching between the liquid supplementing and filling or the filling and circulation heating functions can be realized through the above arrangement.

The circulation heating liquid storage pot possesses the circulation heating function, be equipped with the heating chamber and the liquid reserve chamber of independent separation, guarantee through circulation heating that the oil heating is even and effectual avoided fluid high temperature carbonization, circulation heating liquid storage pot bottom is equipped with drain 11, be used for the discharge waste liquid, and be equipped with level sensor and temperature sensor inside the circulation liquid storage pot, be used for inside fluid liquid level of monitoring liquid storage pot and temperature, for automatic fluid infusion, the switching and the work of circulation heating function provide information support, the accuracy of control has been improved.

Wherein, for the convenience of the liquid level height in the artifical observation liquid storage tank, be equipped with on the circulation heating liquid storage tank and look liquid pipe 10, of course, can understand, in order to the liquid level height in the monitoring liquid storage tank that can be on-the-spot audio-visual, can also choose for use floater level gauge or guided wave radar level gauge in other embodiments, the artifical accurate control liquid level in the liquid storage tank of being convenient for.

The electric control cabinet 1 is provided with an HMI touch screen and a PLC control system, a worker can set different oil injection amounts according to different oil injection wind turbine generator models by using the HMI touch screen, and automatically controls all electric control components and parts through the PLC control system to realize accurate control.

Specifically, when the liquid level sensor monitors that the liquid level in the liquid storage tank is lower than a limit value, the PLC control system controls the electric control L-shaped three-way valve to be switched to a liquid supplementing pipeline, after liquid supplementing is completed, the temperature sensor detects the temperature of oil, when the temperature of the oil is lower than a set value, the electric control L-shaped three-way valve is switched to a circulating heating pipeline, so that the oil is heated to a specified temperature, finally, the electric control L-shaped three-way valve is switched to a filling pipeline, and oil filling is carried out according to the oil filling amount, pressure and flow speed input by the HMI touch screen.

The liquid supplementing pipeline is provided with an oil sucking rod 8 inserted into the barrel, the oil sucking rod inserted into the barrel can be customized according to the length of the oil barrel, the residual amount of oil in the oil barrel can be effectively reduced, a check valve is arranged at the bottom of the oil sucking rod inserted into the barrel, oil backflow is prevented, the utilization rate of the oil is improved, and the liquid supplementing pipeline is further provided with a flow switch, so that whether the oil barrel is empty or not can be judged, and the electric gear pump is prevented from being idle-driven.

The filling pipeline is wound on the oil coiling disc 3, the oil coiling disc is convenient to discharge and store the filling pipeline, the filling pipeline is sequentially connected with the oil outlet filter 12, the filling pressure gauge 9, the high-precision large-flow filter 5, the speed regulation stop valve 13 and the flowmeter 14, and the filling pipeline is matched with the safety overflow device 4 on the circulating heating liquid storage tank to realize the accurate control of filling pressure, flow speed, flow and oil cleanliness.

The safety overflow device is a plate-type safety overflow valve and is used for adjusting overflow pressure, so that enough pressure is ensured to realize oil injection of the fan gearbox on the tower; the speed regulation stop valve is used for regulating the filling flow rate; the flow meter is a high-precision flow meter of 5 thousandth, and is matched with a high-speed counter in a PLC control system to accurately calculate the volume of oil, so that the accurate control of the oil injection amount is realized, and the problem of filling metering is effectively solved; the cleanliness of oil is guaranteed to the setting up of high accuracy large-traffic filter and the filter that produces oil for the filling oil does not contain large granule impurity, has effectively protected the damage of high accuracy components and parts such as electric gear pump and overflow valve, flowmeter.

The filling pipeline is also provided with an anti-leakage nozzle and a high-rise oil transportation quick insertion port, wherein the anti-leakage nozzle has unidirectional sealing capability, adopts a spring type structure, has spring opening pressure generally less than 2bar, is used for filling gear oil of a fan gear box assembled in a workshop, and prevents oil from dripping to pollute the cabin after filling;

the high-rise oil transportation quick connector is an existing device and is matched with a high-rise oil transportation rubber pipe to realize the filling of gear oil of a gear box of an engine room at the top of a tower barrel, and the fact that the gear oil is filled into the gear box needs to be filled into the gear box for the first filling due to the fact that the stop valve is arranged is noticed.

Example 2

Based on the above accurate oiling device of wind turbine generator system gear box, this embodiment still provides a use method, specifically as follows:

manually inputting the oil injection amount of the required oil liquid through an HMI touch screen according to the type of the oil injection wind turbine;

inserting the oil suction rod into the oil drum, and connecting the equipment with a power supply;

the liquid level signal of the circulating heating liquid storage tank is judged through a liquid level sensor, and when the liquid level is lower than a set value, the PLC control system controls the electric control L-shaped three-way valve to be switched to a liquid supplementing pipeline, so that a liquid supplementing flow is automatically started;

when the liquid level supplement reaches the upper limit of the circulating heating liquid storage tank, stopping supplementing liquid, detecting by a temperature sensor, switching the electric control L-shaped three-way valve to a circulating heating pipeline when the temperature is lower than a set value, and automatically starting to perform a circulating heating process;

after the temperature of oil meets the filling requirement, a filling flow is manually started, an inner pipeline of the oil coiling disc is pulled out, an anti-leakage device is connected with a gear box or a high-rise oil transportation quick connection device and is connected with a high-altitude conveying pipeline, an electric control L-shaped three-way valve is switched to the filling pipeline, the oil is ensured to enter the filling pipeline, filling is carried out after the filling pressure and the flow rate are adjusted through a safety overflow device and a speed regulation stop valve, the reading of a flow meter is measured through a high-speed counter, and the automatic stop is carried out when the filling quantity reaches a set value;

and turning off the power supply, arranging the oil pipe and finishing oil injection.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.