Power generation equipment (waste heat boiler/generator/turbine)
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Product Introduction
Power generation equipment is the core equipment that converts various energy sources into electricity, and is widely used in industrial production, urban power supply, emergency backup, and other scenarios.
I. Waste Heat Boilers
Technical Parameters
Evaporation capacity: 1 - 200 tons/hour, adjusted according to the heat source type (high-temperature flue gas, industrial waste heat) and temperature. For example, the evaporation capacity of a converter waste heat boiler in a steel plant can reach 100 tons/hour.
Steam parameters: Pressure 1.0 - 10.0MPa, temperature 200 - 540℃, suitable for different steam turbines or industrial steam requirements.
Thermal efficiency: ≥85% (high-temperature flue gas waste heat recovery), flue gas inlet temperature 300 - 1200℃, outlet temperature ≤200℃.
Heating surface area: 50 - 5000 square meters, designed according to the heat source flow rate and temperature. For example, the heating surface area of a cement kiln waste heat boiler reaches 2000 square meters.
Equipment Selection Suggestions
Suitable for industrial waste heat recovery scenarios (steel, chemical, cement, etc.), priority should be given to furnace types that match existing heat sources:
High-temperature flue gas scenarios (such as metallurgical furnaces, glass kilns): Select a radiation-convection composite waste heat boiler. When the flue gas temperature is 800 - 1200℃, it is equipped with a superheater to produce high-pressure steam (10MPa/540℃), suitable for large steam turbine power generation.
Medium and low-temperature waste heat scenarios (such as diesel engine exhaust gas, kiln cooling gas): Select a finned tube waste heat boiler. When the flue gas temperature is 300 - 500℃, saturated steam (1.0 - 2.5MPa) is produced, which can be used for small-scale power generation or process steam.
Typical case: A 120-ton converter waste heat boiler in a steel plant, with an evaporation capacity of 75 tons/hour, producing 4.0MPa/450℃ steam, with an annual power generation of 40 million kWh.
II. Gas Turbine Generator Sets
Technical Parameters
Unit power: 1 - 400MW, small units (1 - 50MW) are suitable for distributed energy, and large units (100 - 400MW) are used for grid base load power supply.
Power generation efficiency: Simple cycle 30% - 40%, combined cycle (gas turbine + waste heat boiler + steam turbine) ≥55%, such as H-class gas turbine combined cycle efficiency reaching 62%.
Fuel type: Natural gas (main), heavy oil, biomass gas, fuel calorific value ≥25MJ/Nm³.
Start-up time: Fast start-up type (≤10 minutes), suitable for peak regulation; basic load type (30 - 60 minutes), suitable for continuous operation.
Equipment Selection Suggestions
Select according to the application scenario and energy conditions:
Grid peak regulation and large power plants: Select heavy-duty gas turbines above 100MW (such as F-class/9F.04 type), combined cycle configuration, annual utilization hours ≥4000 hours. For example, a gas power plant with 4 300MW units, combined cycle efficiency 58%, annual power generation 600 million kWh.
Distributed energy and industrial power supply: Select small and medium-sized gas turbines of 10 - 50MW (such as LM2500 type), simple cycle or cogeneration, suitable for industrial parks, data centers, etc., cogeneration efficiency ≥70%.
Fuel-restricted scenarios: Dual-fuel units (natural gas/heavy oil) can be selected. For example, gas turbines used on offshore platforms can adapt to fuel fluctuations.
III. Steam Turbines
Technical Parameters
Unit power: 0.5 - 1500MW, small units (0.5 - 50MW) are used for industrial power generation, and large units (300 - 1500MW) are used for thermal power plants.
Inlet steam parameters: Low pressure (1.0 - 2.5MPa/300 - 400℃), high pressure (10 - 16MPa/540℃), supercritical (25MPa/600℃), the higher the parameters, the higher the efficiency.
Power generation efficiency: Condensing steam turbine 30% - 45%, extraction steam turbine (cogeneration) ≥60%, backpressure steam turbine (industrial steam supply) efficiency up to 75%.
Speed: 3000rpm (50Hz grid), 3600rpm (60Hz grid), large units mostly use multi-stage impulse or reaction structures.
Equipment Selection Suggestions
Match according to steam parameters and application scenarios:
Large thermal power plants: Select supercritical/ultra-supercritical steam turbines (such as 1000MW units, 25MPa/600℃ inlet steam), matched with pulverized coal boilers, power generation efficiency above 45%, suitable for base load power sources.
Industrial waste heat power generation and cogeneration: Select extraction backpressure steam turbines (inlet parameters 4.0MPa/450℃), which can simultaneously supply electricity and steam. For example, a 30MW steam turbine in a chemical plant, with an annual steam supply of 1 million tons and power supply of 150 million kWh.
Biomass energy and garbage power generation: Select low-pressure saturated steam turbines (inlet steam 2.5MPa/220℃), which adapt to the fluctuation of steam parameters of biomass fuel, with a unit power of 5 - 50MW.
IV. Diesel Generator Sets
Technical Parameters
Unit power: 10 - 3000kW, small (10 - 200kW) for emergency backup, medium (200 - 1000kW) for commercial power supply, large (1000 - 3000kW) for industrial scenarios.
Power generation efficiency: 30% - 40%, fuel consumption 200 - 250g/kWh, higher efficiency for high-power units (such as 2000kW units with fuel consumption of 210g/kWh).
Start-up time: ≤15 seconds (emergency type), suitable for rapid power supply after power failure; continuous operation type can work continuously for ≥1000 hours.
Fuel type: 0# diesel (normal temperature), -10# diesel (low temperature), fuel calorific value ≥42MJ/kg, fuel tank capacity supports 8 - 24 hours of operation.
Equipment Selection Suggestions
Select according to load characteristics and usage scenarios:
Emergency backup power supply: Select a 10-500kW silent generator (noise ≤75dB), such as a 200kW unit for hospitals and data centers, with a 15-second startup time to meet Tier 1 load requirements.
Continuous power supply for industrial and commercial use: Select a 1000-3000kW high-power generator (such as Cummins KTA38-G2), with a paralleling control cabinet, allowing multiple units to be connected in parallel to meet megawatt-level loads, suitable for remote areas or temporary projects.
Special environmental requirements: For high-altitude areas, select a supercharged generator (power correction factor ≥0.8 at altitudes ≥3000 meters); for offshore platforms, select a corrosion-resistant generator (salt spray protection level IP65).
Selection and Combination Suggestions
High-efficiency energy station: Gas turbine (200MW) + waste heat boiler + steam turbine (100MW), combined cycle power generation efficiency 58%, suitable for city power grids;
Industrial waste energy utilization: Waste heat boiler (evaporation capacity 50 tons/hour) + extraction steam turbine (25MW), combined heat and power to meet factory energy needs;
Emergency power supply solution: Three 1000kW diesel generator sets in parallel, configured with an ATS automatic switching system, to meet the backup power needs of large commercial complexes.
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Yangqu Industrial Park, Shanxi Transformation and Comprehensive Reform Demonstration Zone
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