Product Parameters
| Type of steam turbine |
Energy-saving high-speed steam turbine |
| Model No. of steam turbine |
B3-3.43/0.49 |
| Rated power |
MW |
3 |
| Rated speed |
r/min |
6500/3000 |
| Rated steam inlet pressure &variation range |
Mpa(a) |
3.43 |
| Rated steam inlet temperature &variation range |
ºC |
435 |
| Rated steam inlet flow |
t/h |
29.4 |
| Rated exhaust steam pressure &variation range |
Mpa(a) |
0.49 |
| Steam consumption under rated conditions |
kg/kw.h |
938 |
| Max component weight |
t |
~12 |
| Dimension |
m |
3.84*2.20*2.01 |
| OEM service is available. According to customers's parameter requirement, we can customized R&D, produce and supply steam turbines. |
Parameters of other Back-Pressure Steam Turbine Generator
Generator parameters
Product Description
Basic Working Principle
A high-speed steam turbine operates on the thermodynamic cycle of steam expansion, leveraging the impulse and/or reaction principles to generate rotational motion:
-
Steam Inlet & Energy Conversion
- High-pressure, high-temperature steam from a boiler enters the turbine through nozzles. The nozzles convert the steam's thermal energy into kinetic energy by accelerating it to high velocities.
- For impulse turbines, the steam strikes curved blades attached to the rotor, transferring momentum and causing the rotor to spin.
- For reaction turbines, the steam flows through alternating rows of fixed blades (stators) and rotating blades (rotors). The stator blades direct the steam, while the rotor blades expand it further, creating a reactive force that drives rotation.
-
Multi-Stage Design for Efficiency
- High-speed turbines often use a multi-stage configuration (e.g., low-pressure, intermediate-pressure, and high-pressure stages) to extract maximum energy from the steam. Each stage gradually reduces steam pressure and increases velocity, maintaining high rotational speed.
Applications
-
Industrial CHP Systems
- Used in factories, refineries, and paper mills to generate electricity while providing steam for processes like distillation, evaporation, or heating.
- Example: A sugar mill uses backpressure turbines to generate power and supply steam for sugar refining.
-
District Heating
- Supplies high-temperature steam or hot water for residential/commercial heating in cities (e.g., Copenhagen's CHP network).
-
Mechanical Drive
- Directly powers pumps, compressors, or fans in industrial settings (e.g., in oil and gas plants).
Advantages
- High Power Density: Compact design delivers more power per unit volume.
- Efficiency: Multi-stage expansion maximizes energy extraction from steam.
- Fast Response: Rapid acceleration suits dynamic load requirements.
- Direct Drive: Ideal for high-speed machinery (e.g., compressors, generators) without gearboxes.
- Material Optimization: High-strength alloys enable reliable operation at extreme RPM.
- Space Savings: Reduced footprint compared to low-speed counterparts.
YTS's Technical Advantages
1. The multi-stage impulse steam turbine has 2 to 4 more pressure stages than that of other manufacturers. The stage distance is reduced to allocate more stages in the flow part, the enthalpy drop of each stage is reduced. The diameter of flow structure is reduced, thus the blade height loss is significantly reduced. This technology was selected and listed in 2019 National Recommended Catalogue, Guideline and Cases of Industrial Energy-Saving Technologies and Equipments, released by Chinese Ministry of Industry and Information Technology.
2. Monolithic forged rotor assembly adopts whole forging method and it's a rigid rotor. The integration of the impeller and the shaft increases the safety and stability of operation. The blade profile is optimized and the partition is synchronously matched.
3. Reduce the rotor diameter and increase the blade length, compress various contact gaps to reduce steam leakage and make the steam act to the maximum extent, thereby to achieve high efficiency and more electricity generation under the same working conditions.
4. Add a sleeve cylinder, usually in casting or forging type, reinforced with a partition sleeve, and works with the newly added pressure stage and partition to increase the working air tightness of the new pressure stage, reduce air leakage and enhance operation safety, thus improve the working capacity of the unit;
5. Increase the length and quantity of comb-teeth steam seal from original 36 teeth to 45 teeth, and the tooth height is also increased, which effectively reduces steam leakage;
6. Comparing with similar steam extraction back pressure units from domestic market, it can improve efficiency by 10% to 30%, reduce the unit dimension and occupy less space at the same time. The optimization of the flow structure enables the unit to produce more power under the same working conditions, thus generate energy-saving economic benefits.
Detailed Photos
FAQ
1. Question: How to determine product parameters?
Reply: Design steam turbine units with different working conditions according to the customer's current production technical parameters to meet production needs.
2. Question: How to determine product quality?
Reply: You can do it through on-site field visits and provide relevant inspection and testing reports and other materials.
3. Question: How to ensure after-sales service?
Reply: The company's technical staff solves difficult problems online and offline.
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