Speed up the localization process of the hottest w

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Speed up the localization process of wind power lubricating oil to help the industry reduce costs and increase efficiency will be the Growth Theme

speed up the localization process of wind power lubricating oil to help the industry reduce costs and increase efficiency will be the Growth Theme

China Construction machinery information

throughout the development of wind power in China for more than 30 years, from less than 10% of the initial localization of equipment to 90% today, domestic equipment has almost covered from complete machine to parts, from gearbox/master control, All links to blade/bearing. However, in the vast localization process of China's wind power industry, the localization rate of lubricating oil, known as the "blood" of industrial equipment, is still less than 5%, which is a recognized regret in the industry

in 2020, the parity of wind power is coming. Lower electricity prices and higher investment costs are testing the industrial chain. This machine is mainly used in all links of metal material stretching, tightening, tortuous and shearing experiments. Under this trend, "cost reduction and efficiency increase" has become the biggest demand for the sustainable development of the industry. How to reduce the cost of lubricating oil procurement and maintenance from the source and ensure the continuous and reliable production of wind turbines in operation will be a major test for the industry. Among them, the lubrication guarantee of equipment plays a vital role in ensuring the stable operation of the unit

deep ploughing precision parts, great wall hydraulic oil escorts the stable operation of wind level

Great Wall lubricating oil is one of the first enterprises in China to set foot in the field of wind power lubricating oil. It has rooted the leading advantage of aerospace lubricating technology in the wind power industry, and has made remarkable achievements in adding domestic replacement of lubricating oil for wind power equipment and promoting the comprehensive improvement of lubricating technology for wind power equipment. In 2017, the national standard of lubricating grease for wind power in China (including four items: bearing grease, open gear grease, gearbox gear oil and hydraulic oil) led by Great Wall lubricating oil has been officially implemented

hydraulic oil plays an important role in the Great Wall Lubricant family. We know that the blade is one of the three core components of wind turbine, and its windward working angle and state directly affect the production data of the unit. At present, the vast majority of wind turbines that have been hoisted in China adopt pitch system, and the hydraulic system is the core technology to control pitch

the main functions of the hydraulic system are braking (high and low speed shafts, yaw braking), pitch control and yaw control, so as to realize the speed and power control of the unit. Therefore, the hydraulic system has very high requirements for hydraulic action, transmission efficiency and transmission accuracy

as the key to energy transmission in the hydraulic system, the solution given by Great Wall lubricating oil is the "Great Wall L-HV low temperature hydraulic oil" product, which has the following characteristics:

1) it has excellent high and low temperature performance, provides excellent low temperature starting performance, low temperature flow performance and high temperature protection, and effectively extends the service life of oil products

2) excellent viscosity temperature performance, shear stability, oxidation stability and small viscosity change

3) excellent wear resistance, rust prevention and corrosion resistance, which can prolong the service life of hydraulic equipment

4) excellent seal adaptability, effectively preventing oil leakage

typical data of great wall L-HV low temperature hydraulic oil

based on the above attributes, "Great Wall L-HV low temperature hydraulic oil" products are more suitable for wind farms in areas with poor environment and working conditions, as well as large changes in environmental temperature

craftsman spirit the localization process of wind power lubricating oil made in China has accelerated.

the main lubrication parts of wind power equipment include: main gearbox, yaw, pitch reduction gearbox, hydraulic system, generator bearing, main shaft bearing, yaw bearing, pitch bearing and more than ten lubrication points. Nowadays, Great Wall lubricating oil has formed dozens of lubricating products covering oil, grease and fluid for wind power equipment, effectively improving the operation safety and service life of components. It provides an effective solution to reduce costs and increase efficiency for the upcoming wind power parity

some typical cases are: previously, Great Wall lubricating oil has reached fruitful cooperation with cecep wind power (Zhangbei) company. After years of application and accumulated performance data comparison, it is verified that the performance index of Great Wall lubricating oil is comparable to that of foreign first-class brands, and the performance quality is good

participated in the test and verification of China lubricating oil wind power gearbox of heavy gear wind power gearbox company. Some data of Great Wall lubricating oil are even better than foreign brand products, which has been affirmed and praised by the latter

in 2018, Great Wall AE 46 hydraulic oil was applied in the steam turbine plant of Shanghai electric power station. The oil change began in December. At present, the use effect is good, the hydraulic system oil pressure is normal, and there is no abnormal wear, which saves the comprehensive cost

equipment name: CNC horizontal lathe; Equipment manufacturer: Wallenberg, Germany; Lubrication point: hydraulic system; Model: Pt. Originally, Castrol aws46 hydraulic oil was used, but now Great Wall AE 46 hydraulic oil is used

from the above cases, we can draw a conclusion that it is not difficult to promote the localization of lubrication of wind power equipment, whether in terms of technology or industry standards, but how to break through the conceptual barrier. At present, the whole wind power industry has recognized the importance of localization and substitution. Great Wall lubricants also said that in the future, we will take the localization of oil products as the starting point, promote the combination of strong and strong, work at the same time in the loading market and the post market, and rely on more case data to provide a strong basis for enterprise decision-making

tips: how to maintain hydraulic oil

we know that a remarkable feature of the wind power industry is the high operation and maintenance cost in the later stage, but where is the high? The data shows that the failure rates of fan equipment are gearbox (48%), blade (31%), and generator (21%). Obviously, in addition to quality and natural disasters, the failure rate of these large parts has a great relationship with the maintenance of lubricating oil, and the regional layout is becoming more and more reasonable

tips of Great Wall lubricating oil: when the equipment is in normal operation and there is no abnormal condition, try to maintain the hydraulic oil to keep the insulation performance of the vacuum insulation board normal, so as to reduce the failure rate of the equipment

1) ensure that the hydraulic oil is not used under high temperature, because the oil will soon oxidize and deteriorate under high temperature

2) the air filter on the hydraulic station requires a filter that can filter both particles and moisture

3) the hydraulic oil is filtered by precision filter element, so that the pollution degree of the oil is maintained at NAS level 8 for a long time. The filter element of the equipment is generally too poor in accuracy to ensure the cleanliness of the hydraulic oil. It is best to buy a precision oil filter for filtration. The accuracy of some filter elements has reached 0.1 μ m。 If you remove the servo valve, you will understand everything. Why should the pollution of hydraulic oil be controlled so high

4) for oil stations with water, centrifugal dehydration or vacuum dehydration should be used. Generally, great wall, mobile, shell, etc. can be used for more than 3 years as long as they are well controlled

5) regular oil testing. Hydraulic oil is widely used and is the most used product in industrial oil. At present, hydraulic components are developing in the direction of small volume and high power, and the system pressure is getting higher and higher, some of which have exceeded 50MPa. For this reason, the ordinary L-HL series has tended to be eliminated, and the wear-resistant L-HM series is applied more

6) low coagulation products are used in outdoor equipment. Low temperature performance is also an important characteristic of hydraulic oil. It is required that the equipment can be started easily in low temperature environment, and the power transmission is sensitive, and the oil change cycle of hydraulic oil is long. For example, outdoor equipment is usually changed once a year, and the hydraulic oil will inevitably experience changes in four seasons in the process of use, so the effect is good

7) cleanliness has also become the performance requirement of hydraulic oil. Generally, NAS granularity grade of products should not be greater than 9, clean products should not be greater than 7, and high-definition clean products should not be greater than 5. However, blindly pursuing NAS grade not only has no effect, but also reduces quality and increases cost. From a professional point of view, NAS grade does not need to be pursued too much

8) prevent air from entering the oil. The oil suction port of the oil pump should be sealed reliably, and the oil suction pipe in the oil tank should not be away from the oil surface. However, since the actual engineering case has not been investigated and is too close, an exhaust valve should be set at the highest point of the system to discharge the free air in the oil

9) the oil tank should be reasonably designed. The oil suction pipe should be far away from the oil return pipe, avoiding the use of lead, zinc, copper and other materials that catalyze the oxidation of oil. The oil tank should be coated with oil resistant antirust paint, and the cooler in the oil tank should not leak water

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