MS6001 DLN Combustion Liner

The MS6001 DLN Combustion Liner is a high-performance hot-section component designed for dry low NOx (DLN) gas turbine engines, such as the GE MS6001 series. It forms the internal wall of the combustion chamber, where compressed air mixes with fuel and ignites to produce high-temperature gases that drive the turbine. DLN technology focuses on reducing nitrogen oxide emissions while maintaining combustion stability, making the liner critical for both performance and environmental compliance.

Precision manufacturers like HGTP produce MS6001 DLN combustion liners using advanced machining, high-temperature alloys, and strict quality controls to ensure durability under extreme thermal and mechanical stress.

Function of the MS6001 DLN Combustion Liner

The combustion liner plays multiple critical roles in the gas turbine:

Flame Stabilization

Maintains a stable flame in the combustion zone while preventing flashback into upstream components.

Fuel-Air Mixing

The internal geometry ensures optimal mixing of compressed air and fuel, enabling efficient combustion with low NOx emissions.

Thermal Protection

Cooling holes and film cooling channels help manage liner surface temperatures, protecting the material from thermal degradation.

Structural Support

Provides mounting interfaces for fuel nozzles and other internal combustion chamber components.

Materials Used

DLN combustion liners are exposed to extremely high temperatures (up to 1100°C) and thermal cycling. Materials are selected for heat resistance, strength, and oxidation resistance.

Nickel-Based Superalloys

• Inconel 625

• Inconel 718

• Hastelloy X

These materials offer:

• High-temperature strength

• Oxidation and corrosion resistance

• Excellent thermal fatigue resistance

Heat-Resistant Stainless Steel

• AISI 321

• AISI 347

Used for lower-stress sections or supporting structures, providing weldability and dimensional stability.

Manufacturing Process

Producing an MS6001 DLN combustion liner involves advanced aerospace and turbine manufacturing techniques:

Sheet Forming and Segment Fabrication

• Precision rolling, hydroforming, or deep drawing creates the cylindrical or segmented geometry.

Welding and Assembly

• TIG, laser, or electron beam welding joins multiple liner segments with minimal distortion.

CNC Machining

• Critical surfaces, mounting flanges, and alignment features are machined to tight tolerances (±0.02 – ±0.05 mm).

Cooling Hole Drilling

• Hundreds of precision holes (0.5 – 2 mm diameter) are drilled for film cooling.

• Methods include laser drilling, EDM, or high-precision mechanical drilling.

Technical Specifications (Typical)

Inspection and Quality Control

Strict quality assurance is essential for combustion liners in DLN turbines.

Dimensional Inspection

• CMM ensures precise alignment and concentricity.

Non-Destructive Testing (NDT)

• Dye penetrant, radiography, and ultrasonic inspections detect cracks, porosity, or weld defects.

Material Verification

• Chemical composition, hardness testing, and metallography confirm compliance with turbine specifications.

Applications

The MS6001 DLN combustion liner is used in:

• GE MS6001 series industrial gas turbines

• Power generation plants utilizing DLN technology

• Turbine MRO (maintenance, repair, overhaul) operations

• Industrial turbine parts manufacturing

Its design ensures high combustion efficiency, long service life, and compliance with strict environmental standards.

Precision Turbine Component Manufacturing

Companies like HGTP specialize in producing high-quality turbine hot-section components including:

• CNC machining of high-temperature superalloys

• DLN combustion liner fabrication

• Precision cooling hole drilling and film cooling optimization

• Aerospace-grade welding and assembly

These capabilities support both original equipment manufacturing (OEM) and aftermarket turbine MRO requirements, ensuring reliability and efficiency in critical power generation application