Main Oil Pump Rotor for Steam Turbine

II. Product Features

• High-Precision Manufacturing Process: Uses advanced CNC machining equipment and high-precision machining processes to ensure the rotor's dimensional accuracy and form and position tolerances meet extremely high standards. For example, the rotor's axial and radial runout are strictly controlled within a very small range, thus ensuring its stability during high-speed rotation, reducing vibration, and extending its service life. The surface undergoes fine polishing, which effectively reduces the resistance of the oil on the rotor surface and improves oil delivery efficiency. It also reduces local wear caused by surface roughness.
• High-Quality Material Selection: The main oil pump rotor is made of high-strength, high-toughness, and corrosion-resistant alloy steel materials. These materials have excellent mechanical properties and can maintain stable dimensions and performance under long-term exposure to high temperatures, high pressures, and oil media. They are not prone to deformation, fracture, or corrosion, ensuring the rotor's long-term reliable operation under harsh conditions. The material undergoes strict quality inspection and heat treatment to further optimize its internal structure, improving the material's strength and toughness. This enables it to withstand the high stress and high torque generated during steam turbine operation, ensuring the rotor's safety and stability under various complex conditions.
• Efficient Lubrication and Sealing Design: The rotor's internal design includes an optimized oil channel, which allows the oil to flow smoothly, forming a good lubrication film. This effectively reduces the friction between the rotor and other components, such as bearings, reducing wear and improving the lubrication effect. At the same time, the reasonable oil channel design also ensures uniform oil distribution inside the rotor, further improving lubrication efficiency and extending the service life of the rotor and related components. It uses advanced sealing structures, such as mechanical seals or labyrinth seals, which provide reliable sealing performance and can effectively prevent oil leakage. This avoids environmental pollution from oil and also prevents external impurities from entering the oil system, ensuring the cleanliness of the oil and the normal operation of the rotor and related components. The sealing structure is carefully designed and optimized to maintain stable sealing performance during long-term operation, reducing the risk of failure due to seal failure.
• Good Dynamic Balance Performance: During manufacturing, the main oil pump rotor undergoes strict dynamic balance correction to ensure its dynamic balance accuracy meets extremely high standards during high-speed rotation. Through precise counterweights and adjustments, the centrifugal force generated by the rotor during high-speed rotation is balanced, reducing vibration and noise. This improves the smoothness and reliability of steam turbine operation, providing a strong guarantee for the power plant's stable production.
• Customizable Design: We can provide customized main oil pump rotor products based on the specific model and operating conditions of different power plant steam turbines. We can custom-design the rotor's dimensions, shape, material, and performance according to the customer's special needs, ensuring the rotor perfectly matches the customer's steam turbine system and meets their personalized requirements, providing customers with the most optimal product solution.

III. Application Range

The main oil pump rotor is widely applicable to steam turbines in various power plants, including but not limited to the following types:

• Large Thermal Power Plant Steam Turbines: Provides a stable oil supply for large-power, high-parameter thermal power steam turbines, ensuring their lubrication and control systems operate normally and guaranteeing the high-efficiency power generation of the generator unit.
• Small Power Plant Steam Turbines: Also suitable for steam turbine equipment in small power plants. Whether as a main oil pump rotor or a standby oil pump rotor, it can meet their operating needs and ensure the stable operation of the power generation equipment.
• Combined Heat and Power (CHP) Steam Turbines: In CHP systems, the main oil pump rotor can provide reliable oil support for the steam turbine, ensuring it operates stably during both power generation and heating. This improves energy utilization efficiency and achieves efficient CHP operation.
• Other Industrial Steam Turbines: In addition to the power generation field, the main oil pump rotor can also be used in steam turbine equipment in other industrial fields, such as chemical and metallurgical industries, to provide stable power support and ensure the normal progress of industrial production.

IV. Custom Fabrication per Drawings

We provide precision manufacturing of main oil pump rotors strictly in accordance with your technical drawings. Our production fully complies with your specified requirements, including but not limited to:

• Dimensional & Geometric Accuracy: Strictly follow drawing specifications for axial/radial runout, form and position tolerances, and surface finish to ensure compatibility with the main oil pump casing and shaft.
• Material Customization: Match the exact alloy steel grade specified in drawings, and conduct spectral analysis and heat treatment to meet mechanical property requirements.
• Dynamic Balance Standards: Implement dynamic balance correction as per drawing-defined grades to minimize vibration during operation.
• Lubrication & Sealing Integration: Precisely machine internal oil channels and mount sealing structures according to drawing details, ensuring smooth oil flow and leak-proof performance.

All custom rotors undergo strict inspections (non-destructive testing, dimensional verification, dynamic balance testing) to ensure full compliance with your steam turbine system’s operating parameters.