Hydraulic cylinders play a crucial and diverse role in the new-energy industry. They are widely applied in various new-energy fields, contributing to the improvement of energy conversion efficiency, equipment stability, and safety. The following is a detailed introduction to the relationship between hydraulic cylinders and the new-energy industry:

Wind Power Generation

-Pitch System: In wind turbines, hydraulic cylinders are key components of the pitch system. Each single-fan usually requires 14 to 18 cylinders, accounting for 35% to 45% of the value of the relevant components. They are responsible for adjusting the angle of the blades. By accurately controlling the blade angle, the hydraulic cylinders can make the blades capture wind energy more effectively, thereby improving the power generation efficiency of the fan. Especially in the face of extreme weather such as typhoons, the high-precision hydraulic cylinders can ensure that the blades are adjusted to the appropriate angle in time to enhance the typhoon resistance of the fan.

-Yaw System: Hydraulic cylinders are also used in the yaw system of wind turbines. The yaw system driven by hydraulics can realize 360-degree stepless steering, which can make the fan always face the wind direction, improve the wind-chasing efficiency by about 30%, and further improve the power generation capacity.

-Off-shore Wind Power: For off-shore wind power, the working environment of hydraulic cylinders is more harsh. They need to have the characteristics of high precision, high sealing, and high corrosion resistance. For example, the hydraulic cylinders provided by Hengli for the deep-sea wind power installation platform have withstood the harsh challenges of the deep-sea environment, ensuring the stability and safety of the platform, and playing a key role in the process of China's new-energy equipment technology moving from land to sea.

Solar Energy Utilization

-Solar Thermal Power Generation: In the field of solar thermal power generation, hydraulic cylinders are used to adjust the position of solar panels or related components. For example, Hengli is one of the professional hydraulic cylinder manufacturers in China that entered the solar thermal power generation system field earlier. For the 700MW solar thermal power generation project in Dubai, Hengli customized a supporting solution according to the harsh environment of high temperature, high humidity, and many sandstorms in the project area. The provided solar hydraulic cylinders meet the customer-required C4H, level 10 requirements, with excellent anti-corrosion performance and impact resistance to sand and dust.

-Solar Photovoltaic Power Generation: In large-scale solar power plants, hydraulic cylinders are applied to the solar tracking system. As the sun moves, the hydraulic cylinder can drive the solar panels to move, so that the panels can always maintain the best angle with the sun, maximizing the amount of light energy received, and then improving the power generation efficiency of photovoltaic power generation.

Hydroelectric Power Generation

Hydraulic cylinders play an important role in hydro-power plants. They are used to open, hold, and lock dam gates, valves, and other components. The reliable operation of hydraulic cylinders is crucial to prevent site injuries and catastrophic floods. At the same time, hydraulic cylinders can also be used to adjust the height of equipment in the water and control the scope and duration of power generation according to the changes of tides and water levels, so as to optimize the power generation efficiency of hydro-power plants.

Wave Power Generation

Wave power generation uses the energy of ocean waves. The terminator devices, point absorbers, and attenuators in wave power generators rely on hydraulic cylinders to capture wave activity and convert it into electricity. Hydraulic cylinders can convert the kinetic energy of waves into hydraulic energy, and then drive hydraulic motors and generators through high-pressure hydraulic oil to realize the conversion of wave energy into electrical energy. For example, in a 500-kilowatt wave energy power generation device project, the hydraulic cylinders provided by Hengli can work at a maximum frequency of 20,000 times a day, providing a powerful auxiliary power for the device to collect wave energy.

Hydrogen Energy Industry

Hydraulic cylinders are becoming increasingly important in the hydrogen energy industry. Hydrogen can be compressed into a high-pressure gas and stored in large-scale tanks, but these tanks are usually heavy, bulky, and costly. Hydraulic cylinders can solve these problems. They can store hydrogen at high pressure in a smaller and lighter container, which is convenient for the transportation and use of hydrogen energy, such as in vehicles and power generation. In addition, hydraulic cylinders can be designed to be leak-proof and durable, ensuring the safe and reliable storage of hydrogen energy.

Nuclear Energy Industry

In the nuclear energy industry, hydraulic cylinders are essential components. They use hydraulic pressure to generate mechanical force, which is used to control valves, pumps, and other key components in nuclear power plants. Hydraulic cylinders have the characteristics of high reliability and long service life, which meet the high-requirements of safety and durability in the nuclear energy industry. With the increasing demand for clean energy, hydraulic cylinders will continue to play an important role in the nuclear power industry, providing a safe and efficient way of power generation.

In conclusion, hydraulic cylinders are widely used in various links of the new-energy industry. With the continuous development of the new-energy industry, the requirements for hydraulic cylinders are also constantly increasing, which promotes the continuous innovation and development of hydraulic cylinder technology in terms of high-precision, high-reliability, and anti-corrosion, and provides a strong guarantee for the efficient and stable operation of the new-energy industry.