Description

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　　Other names for 8516-038:

Clockwise Screw Speed ​​Controller 8516-038

8516-038 Throttle Speed ​​Controller

The Woodward 8516-038 is a TG-13 series mechanical-hydraulic governor manufactured by Woodward, specifically designed for turbine speed control, belonging to the category of mechanical centrifugal governors. This model is known for its precise speed control, durable construction, and ease of maintenance, and is widely used in manufacturing, power generation, shipbuilding, oil and gas, chemical, metallurgy, electronics, and paper industries.

Brand and Model: Woodward TG-13 (8516-038), a mechanical-hydraulic differential speed governor, specifically designed for small steam turbines and requiring no synchronous operation.

Core Function: Achieves stable regulation of turbine speed through precise control of steam flow, ensuring efficient and reliable equipment operation.

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　　Technical Parameters

Electrical Characteristics:

Operating Voltage: 24Vdc/120Vac (some batches support 220V), Input Voltage -0.6V DC.

Output Frequency: 50-60Hz (or 56-245Hz/100kHz, depending on configuration).

Rated Current: 60A (can reach 100-400A depending on the application).

Physical Characteristics:

Operating Temperature: 50~80℃, must meet NEMA 12/13 or 4X protection standards.

Output Characteristics:

Counter-clockwise rotation of the output terminal shaft connects to the turbine speed control valve to control steam flow.

Maximum output shaft rotation angle: 40°; recommended rotation angle is 2/3 of the full stroke.

Structural Features:

Independent oil source design, self-contained mechanical hydraulic system.

Harsh environment resistant structure, suitable for high temperature, high humidity, and vibration environments.

Supports wall-mounted or rack-mounted installation; compact size (e.g., 88×440×680mm).

Performance Characteristics:

Independent oil source design; durable mechanical hydraulic structure, resistant to vibration/shock.

High speed regulation accuracy, fast response; supports speed setting range of 1200-2400rpm (e.g., rated speed reduction of 2° at 2010rpm).

Core Functions:

Precise Speed ​​Control: Converts electrical signals into mechanical actions via a hydraulic amplifier to achieve precise adjustment of turbine speed.

Load Distribution: Supports load distribution among multiple units, suitable for grid-connected or islanded operation scenarios.

Protection Mechanisms: Includes built-in overspeed protection, critical speed avoidance, and automatic start-up procedures.

Mechanical-Hydraulic Transmission: Employs a centrifugal hammer mechanism to sense speed changes and drive the hydraulic actuator to adjust the steam valve opening, achieving zero-error/error-based regulation (e.g., PG-PL, UG series support soft feedback systems). Typical models such as TG-13/TG-17 have a maximum output shaft rotation angle of 40°, with a recommended rotation angle of 2/3 of the full stroke, and support ATEX explosion-proof environments.

Electro-hydraulic Co-control: The 505/505E digital speed controller integrates a microprocessor, converting 4-20mA signals into secondary hydraulic pressure (1.5-4.5 bar) via an electro-hydraulic converter to drive the hydraulic actuator for precise speed control. The 505E supports Modbus communication and can seamlessly integrate with DCS/PLC systems, enabling remote speed setting and seamless switching.

Environmentally Resistant Design: Utilizing a cast iron casing, independent oil chamber (1.9L capacity), and corrosion-resistant materials, it adapts to a wide temperature range of -30℃ to 93℃, high vibration, and salt spray corrosion environments (such as the EGB-2E marine governor).

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　　Application Scenarios

Main Fields: Industrial applications including manufacturing, power generation, shipbuilding, oil and gas, chemical, and wastewater treatment.

Applicable Equipment: Small steam turbines, turbine-driven pumps, compressors, and other equipment requiring precise speed control.

Industrial Steam Turbines: Controlling turbine speed in power generation, petrochemical, and metallurgical industries, ensuring speed fluctuations <±0.25% under load fluctuations, preventing overspeed/underspeed.

Marine Propulsion: The EGB-2E governor regulates fuel supply to marine engines, ensuring navigation stability and fuel efficiency, adapting to complex marine environments.

Energy and Manufacturing: Driving compressors, pumps, generators, and other equipment, supporting load distribution (such as parallel unit speed reduction setting) and synchronization control.

Special Environments: Resistant to high temperatures, vibration, and salt spray corrosion; suitable for offshore platforms, chemical plants, wastewater treatment equipment, etc.

Power Generation Systems: Used as a core speed control device in gas turbine and steam turbine power generation systems.

Marine and Industrial Applications: Used for speed control in marine propulsion systems, compressors, and pumps.

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　　Classic Core Models and Technical Parameters

TG Series: TG-13/TG-17 are mechanical-hydraulic differential speed governors, suitable for small steam turbines; TG-13E/TG-17E electro-hydraulic actuators have independent oil sources, support zero-delay speed regulation and load distribution, and are compatible with NetCon controllers.

505/505E Series: Digital speed regulators, supporting speed reference, proportional/limiter, and remote control modules; widely used in 25MW steam turbines, ethylene cracking gas compressors, etc. The 505E optimizes spring stiffness to 9.2-11.5 N/mm and increases phase margin to 45°, suppressing self-excited oscillation.

UG Series: UG-8/UG-10 dial/lever type governors, output torque 7.1-15.9 N·m, working oil pressure 827-1034 kPa, supports synchronous/differential mode switching, buffer piston and compensating needle valve ensure dynamic stability.

EGB-2E: Marine-specific governor, input speed 500-3000 rpm, applicable power 100-1200 kW, salt spray corrosion resistant, fast response speed, compatible with various marine engines.

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　　Installation and Maintenance

Installation Requirements:

Must be installed in a conductive metal housing, ensuring ventilation and heat dissipation (ambient temperature 0-55℃).

Wiring requires a torque wrench (0.7-0.9 N·m), and the memory card holder must be correctly installed.

Configure communication protocols (e.g., DH485, EtherNet/IP) and parameters (node ​​address, baud rate).

Maintenance Guide:

Regularly check oil cleanliness to avoid mechanical wear.

Solid-state devices must be operated according to safety procedures to avoid damage from reverse polarity/overvoltage.

During troubleshooting, check the communication status indicator lights (e.g., solid/flashing/unfilled).

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　　Extended Information

Series Models: Includes TG-17, TG-13E, TG-17E, etc., adaptable to different power and application scenarios.

Compatibility: Integrates with PLC/DCS systems, supports Modbus, EtherNet/IP protocols, etc.

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　　Precautions

Installation Specifications: Must comply with NEMA or similar standards, ensuring ventilation, protection, and electrical safety.

Environmental Adaptability: Performance impact must be assessed in high temperature, high humidity, and vibration environments; protective measures should be taken if necessary.

Operation Training: Operators must receive professional training and be familiar with equipment characteristics and emergency response procedures.

Compliance: Follow industry standards and safety regulations to ensure equipment operation complies with regulatory requirements.

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