CN201381952Y - A wind turbine gearbox lubrication system - Google Patents
A wind turbine gearbox lubrication system Download PDFInfo
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- CN201381952Y CN201381952Y CN200920099729U CN200920099729U CN201381952Y CN 201381952 Y CN201381952 Y CN 201381952Y CN 200920099729 U CN200920099729 U CN 200920099729U CN 200920099729 U CN200920099729 U CN 200920099729U CN 201381952 Y CN201381952 Y CN 201381952Y
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- 238000005461 lubrication Methods 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 239000002828 fuel tank Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000001914 filtration Methods 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 78
- 239000010687 lubricating oil Substances 0.000 description 29
- 238000000034 method Methods 0.000 description 7
- 238000004321 preservation Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
本实用新型提供了一种风电机组齿轮箱润滑系统。它包括油箱、双速油泵、主过滤器、温控阀、冷却单元、分配器、齿轮箱、温度传感器、加热器和离线过滤器，当温度低于0摄氏度时，不能循环，用加热器进行加热升温，油循环时经油泵、主过滤器至温控阀，温控阀可控制油是否流经冷却单元，当油温低于风扇启动设计温度时，油不经主过滤器直接到分配阀，超过风扇启动设计温度时，油经过冷却单元冷却后再到分配器，冷却单元中的双速风扇可根据油箱内的温度的高低而处于不同的工作状态，以达到良好的冷却效果，最后润滑油经齿轮箱回至油箱完成一个循环。离线过滤器直接和油箱连接，对油品进行精细的过滤。整个系统可以为齿轮箱提供良好的润滑，提高齿轮箱的使用寿命。
The utility model provides a lubricating system for a gearbox of a wind turbine. It includes oil tank, two-speed oil pump, main filter, temperature control valve, cooling unit, distributor, gear box, temperature sensor, heater and off-line filter, when the temperature is below 0 degrees Celsius, it cannot be circulated, and it is performed with the heater Heating and heating, the oil circulates through the oil pump, the main filter to the temperature control valve, and the temperature control valve can control whether the oil flows through the cooling unit. When the oil temperature is lower than the design temperature of the fan, the oil does not go through the main filter and goes directly to the distribution valve , when the design temperature of the fan starts, the oil is cooled by the cooling unit and then goes to the distributor. The two-speed fan in the cooling unit can be in different working states according to the temperature in the oil tank to achieve a good cooling effect, and finally lubricate The oil returns to the oil tank through the gear box to complete a cycle. The off-line filter is directly connected to the oil tank for fine filtration of the oil. The whole system can provide good lubrication for the gearbox and improve the service life of the gearbox.
Description
(一)技术领域(1) Technical field
本实用新型属于风力发电技术领域，具体涉及一种新型风电齿轮箱润滑系统。The utility model belongs to the technical field of wind power generation, in particular to a novel wind power gearbox lubricating system.
(二)背景技术(2) Background technology
由于资源的紧缺和政府对可再生能源的政策鼓励及支持，风力发电行业发展势头强劲，限于技术上的不足，在风力发电机组的运行过程中，难免会发生故障，而在风力发电机组的各个零部件中，齿轮箱的故障造成停机时间是最长的，而造成齿轮箱发生故障的原因主要是润滑效果不好。现有风力发电机组的齿轮箱所用的润滑系统中，大部分采用单一转速的泵带动润滑液经过分配器进入齿轮箱以达到润滑的目的，这种润滑方式在运行一段时间后，温度上升，得不到良好的冷却，控温效果不好，使润滑效果下降，并且齿轮箱和油箱为一体式的，这种方式的润滑油过滤精度不高，压力不稳定，满足不了齿轮箱的润滑要求。Due to the shortage of resources and the government's policy encouragement and support for renewable energy, the development momentum of the wind power industry is strong. Due to technical deficiencies, failures will inevitably occur during the operation of the wind power generating set. Among the components, the downtime caused by the failure of the gearbox is the longest, and the main reason for the failure of the gearbox is the poor lubrication effect. In the lubrication system used in the gearbox of the existing wind power generating set, most of the pumps with a single speed drive the lubricating fluid into the gearbox through the distributor to achieve the purpose of lubrication. Without good cooling, the temperature control effect is not good, so the lubrication effect is reduced, and the gearbox and the oil tank are integrated, the lubricating oil filtration accuracy of this method is not high, the pressure is unstable, and it cannot meet the lubrication requirements of the gearbox.
(三)发明内容(3) Contents of the invention
本实用新型的目的在于提供一种用于为风电齿轮箱提供良好的润滑，保证机组可靠运行的风电机组齿轮箱润滑系统。The purpose of the utility model is to provide a gearbox lubrication system for a wind turbine that provides good lubrication for the wind turbine gearbox and ensures reliable operation of the unit.
本实用新型的目的是这样实现的：它包括油箱、双速油泵、主过滤器、温控阀、冷却单元、分配器、齿轮箱、温度传感器，加热器和离线过滤器，油箱连接双速油泵，双速油泵连接主过滤器，主过滤器两端设置有一个压差发讯器，主过滤器连接温控阀，温控阀分别连接冷却单元和分配器，冷却单元连接分配器，分配器连接齿轮箱，齿轮箱连接油箱，油箱连接温度传感器和加热器，离线过滤器连接油箱。The purpose of this utility model is achieved in this way: it includes a fuel tank, a two-speed oil pump, a main filter, a temperature control valve, a cooling unit, a distributor, a gear box, a temperature sensor, a heater and an off-line filter, and the fuel tank is connected to a two-speed oil pump , the two-speed oil pump is connected to the main filter, and a differential pressure transmitter is installed at both ends of the main filter. The main filter is connected to the temperature control valve, and the temperature control valve is connected to the cooling unit and the distributor respectively. Connect the gearbox, the gearbox is connected to the oil tank, the oil tank is connected to the temperature sensor and heater, and the offline filter is connected to the oil tank.
本实用新型还有这样一些技术特征：The utility model also has some technical characteristics:
1、所述的冷却单元包括散热片及双速风扇；1. The cooling unit includes a heat sink and a two-speed fan;
2、所述的过滤器包括主过滤器和离线过滤器。2. The filter includes a main filter and an offline filter.
本实用新型提出了全新的润滑系统方案，当温度低于0摄氏度时，油不能循环，开启加热器，对油加热升温，润滑油循环时，油箱里的油经双速油泵送至过滤器，过滤器两端配置一个压差发讯器，可以监测过滤器的工作状态，决定过滤器是否需要更换。经过滤器后再流至温控阀，温控阀的位置状态由油箱内的温度决定，温度低于设计温度时，润滑油直接流至分配器，若温度高于设计温度时，则需流经冷却单元，冷却单元的双速风扇可根据油箱内油的温度决定高速运行或低速运行，对油提供一个良好的冷却效果。然后油经由分配器进入齿轮箱，最后返回油箱，完成一个循环。The utility model proposes a brand-new lubricating system scheme. When the temperature is lower than 0 degrees Celsius, the oil cannot circulate. Turn on the heater to heat up the oil. When the lubricating oil circulates, the oil in the oil tank is sent to the filter through the double-speed oil pump. A differential pressure transmitter is installed at both ends of the filter to monitor the working status of the filter and determine whether the filter needs to be replaced. After passing through the filter, it flows to the temperature control valve. The position of the temperature control valve is determined by the temperature in the oil tank. When the temperature is lower than the design temperature, the lubricating oil flows directly to the distributor. If the temperature is higher than the design temperature, it needs to flow through the Cooling unit, the two-speed fan of the cooling unit can decide to run at high speed or low speed according to the temperature of the oil in the oil tank, providing a good cooling effect on the oil. The oil then enters the gearbox through the distributor, and finally returns to the oil tank, completing a cycle.
系统中的油泵是一个双速油泵，可根据安装在油箱内的温度传感器监测的温度调节转速，油温较低时，油泵处于低速级，循环周期较长，当油温升高到一定值时，油泵处于高速级，使润滑油的循环周期缩短，从而使润滑油在润滑过程中热量交换速度加快，从而使油温不再升高。同样，系统中冷却单元的风扇采用双速风扇，可根据油箱内油料温度调节转速，当温度超过一定温度时，风扇启动并处于低速级，风量较小，对润滑油的冷却速度较慢，使油温不至于过低，当温度升高到一定值时，风扇处于高速级，加大风量增强对润滑油的冷却，使油温不再升高。系统配置一个独立的焊接结构保温油箱，保证在低温时能够快速加热油箱中的润滑油，快速启动发电机组。油箱安装有离线过滤器，对油箱中的润滑油进行独立的过滤，使润滑油保持清洁，满足润滑系统的要求，提高零部件的使用寿命，保证系统运行的可靠性。The oil pump in the system is a two-speed oil pump, and the speed can be adjusted according to the temperature monitored by the temperature sensor installed in the oil tank. , The oil pump is at a high-speed stage, which shortens the cycle period of the lubricating oil, thereby accelerating the heat exchange speed of the lubricating oil during the lubrication process, so that the oil temperature will no longer rise. Similarly, the fan of the cooling unit in the system adopts a two-speed fan, and the speed can be adjusted according to the temperature of the oil in the oil tank. When the temperature exceeds a certain temperature, the fan starts and is at a low speed level, the air volume is small, and the cooling speed of the lubricating oil is slow. The oil temperature will not be too low. When the temperature rises to a certain value, the fan is at a high speed level, and the air volume is increased to enhance the cooling of the lubricating oil, so that the oil temperature will no longer rise. The system is equipped with an independent welded heat preservation oil tank to ensure that the lubricating oil in the oil tank can be quickly heated at low temperature and the generator set can be started quickly. The oil tank is equipped with an off-line filter, which independently filters the lubricating oil in the oil tank to keep the lubricating oil clean, meet the requirements of the lubrication system, improve the service life of parts, and ensure the reliability of the system operation.
通过上述油泵和风扇的转速调节，可以将润滑油在循环过程中的热交换调整到一个平衡的状态，从而将润滑油的温度控制在一个合理的范围，同时系统中的过滤装置和离线过滤器可为润滑油提供良好的过滤，保持润滑油的清洁，为齿轮箱提供一个良好的润滑，大大降低齿轮箱的故障率，延长齿轮箱的使用寿命。当温度低于0摄氏度时，不能循环，用加热器进行加热升温，油循环时经油泵、过滤器至温控阀，温控阀可控制油是否流经冷却单元，当油温低于风扇启动设计温度时，油不经过滤器直接到分配阀，超过风扇启动设计温度时，油经过冷却单元冷却后再到分配器，冷却单元中的双速风扇可根据油箱内的温度的高低而处于不同的工作状态，以达到良好的冷却效果，最后润滑油经齿轮箱回至油箱完成一个循环，系统对齿轮箱提供良好的润滑，提高齿轮箱的使用寿命。Through the adjustment of the speed of the above-mentioned oil pump and fan, the heat exchange of the lubricating oil in the circulation process can be adjusted to a balanced state, so that the temperature of the lubricating oil can be controlled in a reasonable range. At the same time, the filter device and off-line filter in the system It can provide good filtration for lubricating oil, keep the lubricating oil clean, provide a good lubrication for the gearbox, greatly reduce the failure rate of the gearbox, and prolong the service life of the gearbox. When the temperature is lower than 0 degrees Celsius, the circulation cannot be performed, and the heater is used to heat up the temperature. When the oil is circulated, it passes through the oil pump and filter to the temperature control valve. The temperature control valve can control whether the oil flows through the cooling unit. When the oil temperature is lower than the fan starts At the design temperature, the oil goes directly to the distributing valve without passing through the filter. When the fan starts to exceed the design temperature, the oil is cooled by the cooling unit and then goes to the distributor. The two-speed fan in the cooling unit can be in different positions according to the temperature in the oil tank. In the working state, in order to achieve a good cooling effect, the lubricating oil returns to the oil tank through the gearbox to complete a cycle. The system provides good lubrication for the gearbox and improves the service life of the gearbox.
(四)附图说明(4) Description of drawings
图1为本实用新型风电齿轮箱润滑系统原理图。Figure 1 is a schematic diagram of the lubrication system of the wind power gearbox of the present invention.
(五)具体实施方式(5) Specific implementation methods
下面结合附图对本实用新型作进一步的说明：Below in conjunction with accompanying drawing, the utility model is further described:
结合图1，本实施例润滑系统包括油箱1、双速油泵3、溢流阀4、过滤器5、压差发讯器6、温控阀7、冷却单元(包括散热片8及双速风扇9)、分配器10、齿轮箱11、温度传感器12和加热器2。当温度低于0摄氏度时，油不能循环，开启加热器2，对油加热升温，润滑油循环时，油箱1里的油经双速油泵3送至过滤器5，过滤器5两端配置一个压差发讯器6，可以监测过滤器的工作状态，决定过滤器5是否需要更换。经过滤器5后再流至温控阀7，温控阀7的位置状态由油箱1内的温度决定，温度低于设计温度时，润滑油直接流至分配器10，若温度高于设计温度时，则需流经冷却单元，冷却单元的双速风扇9可根据油箱1内油的温度决定高速运行或低速运行，对油提供一个良好的冷却效果。然后油经由分配器10进入齿轮箱11，最后返回油箱1，完成一个循环。1, the lubrication system of this embodiment includes an oil tank 1, a two-
系统中的油泵是一个双速油泵，可根据温度传感器监测的油箱内温度调节转速，油箱内温度大于等于0℃时，油泵每30分钟运行5分钟，当油温大于等于10℃，油泵处于低速级，这时润滑循环周期较长，润滑油在润滑过程中可以吸收较多齿轮运行过程所散发的热量，可以提高润滑油的温度。当油温大于35℃时，油泵处于高速级，使润滑油的循环周期缩短，从而使润滑油在润滑过程中热量交换时间缩短，使油温上升减慢或不再升高。反之，当油温跌落至小于30℃时，油泵从高速级调整至低速级，当油温继续回落至10℃以下时，油泵从低速级调整至油泵每30分钟运行5分钟。The oil pump in the system is a two-speed oil pump. The speed can be adjusted according to the temperature in the oil tank monitored by the temperature sensor. When the temperature in the oil tank is greater than or equal to 0°C, the oil pump runs for 5 minutes every 30 minutes. When the oil temperature is greater than or equal to 10°C, the oil pump is at low speed. At this time, the lubrication cycle is longer, and the lubricating oil can absorb more heat emitted by the gear during the lubrication process, which can increase the temperature of the lubricating oil. When the oil temperature is higher than 35°C, the oil pump is in the high-speed stage, which shortens the cycle period of the lubricating oil, shortens the heat exchange time of the lubricating oil during the lubrication process, and slows down or stops the rise of the oil temperature. Conversely, when the oil temperature drops below 30°C, the oil pump is adjusted from high speed to low speed, and when the oil temperature continues to fall below 10°C, the oil pump is adjusted from low speed to run for 5 minutes every 30 minutes.
同样，系统中冷却环节的风扇采取双速风扇，可根据油箱内油料温度调节转速，当油温大于45℃时，风扇启动并处于低速级，这时对润滑油的冷却速度较慢，使油温不至于过低，当温度升高到65℃以上时，风扇处于高速级，增强对润滑油的冷却，使油温不再升高。反之，当油温降至58℃时，风扇自高速级调整至低速级，当油温降至45℃以下时，风扇关闭。Similarly, the fan in the cooling link of the system adopts a two-speed fan, and the speed can be adjusted according to the temperature of the oil in the oil tank. When the oil temperature is greater than 45°C, the fan starts and is at a low speed level. At this time, the cooling speed of the lubricating oil is relatively slow, making the oil The temperature will not be too low. When the temperature rises above 65°C, the fan will be at a high-speed stage to enhance the cooling of the lubricating oil so that the oil temperature will no longer rise. Conversely, when the oil temperature drops to 58°C, the fan is adjusted from high speed to low speed, and when the oil temperature drops below 45°C, the fan is turned off.
系统配置一个独立的焊接结构保温油箱，并且在油箱的一端安装有离线过滤器，对油箱中的润滑油进行独立的过滤，使润滑油保持清洁，满足润滑系统的要求，提高零部件的使用寿命，保证系统安全稳定的运行。The system is equipped with an independent welded heat preservation oil tank, and an offline filter is installed at one end of the oil tank to independently filter the lubricating oil in the oil tank to keep the lubricating oil clean, meet the requirements of the lubrication system, and improve the service life of parts , to ensure the safe and stable operation of the system.
通过上述油泵和风扇的转速调节，可以将润滑油在循环过程中的热交换调整到一个平衡的状态，从而将润滑油的温度控制在一个合理的范围，同时系统中的过滤装置和离线过滤器可为润滑油提供良好的过滤，保持润滑油的清洁，为齿轮箱提供一个良好的润滑，大大降低齿轮箱的故障率，延长齿轮箱的使用寿命。Through the adjustment of the speed of the above-mentioned oil pump and fan, the heat exchange of the lubricating oil in the circulation process can be adjusted to a balanced state, so that the temperature of the lubricating oil can be controlled in a reasonable range. At the same time, the filter device and off-line filter in the system It can provide good filtration for lubricating oil, keep the lubricating oil clean, provide a good lubrication for the gearbox, greatly reduce the failure rate of the gearbox, and prolong the service life of the gearbox.
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| CN101979872A (en) * | 2010-10-22 | 2011-02-23 | 大连华锐股份有限公司 | Lubricating system for gear box of wind generating set |
| CN102109037A (en) * | 2011-01-21 | 2011-06-29 | 太原重工股份有限公司 | Cooling system of hydraulic excavator transfer case |
| CN102221079A (en) * | 2011-03-15 | 2011-10-19 | 鞍钢集团矿业公司 | Blower gear case with air cooling apparatus |
| CN102287524A (en) * | 2011-08-22 | 2011-12-21 | 成都利君实业股份有限公司 | Speed reducer lubrication system |
| CN102808732A (en) * | 2011-05-31 | 2012-12-05 | 通用电气公司 | System and methods for monitoring oil conditions of a wind turbine gearbox |
| CN103016934A (en) * | 2012-12-04 | 2013-04-03 | 大连华锐重工集团股份有限公司 | Wind-powered lubrication system with pressure buffer |
| WO2013154635A1 (en) | 2012-01-27 | 2013-10-17 | United Technologies Corporation | Geared turbomachine fluid delivery system |
| CN103498913A (en) * | 2013-10-23 | 2014-01-08 | 大连华锐重工集团股份有限公司 | Wind power gear box lubricating system suitable for extreme condition |
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2009
- 2009-04-30 CN CN200920099729U patent/CN201381952Y/en not_active Expired - Fee Related
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| CN114508584A (en) * | 2022-03-03 | 2022-05-17 | 上海电气风电集团股份有限公司 | Gear box lubricating system |
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| CN115789233A (en) * | 2023-02-08 | 2023-03-14 | 南京讯联液压技术股份有限公司 | Wind power generation gear box lubrication servo control system |
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