| Type of steam turbine |
High Temperature, High Pressure High Backpressure Steam Turbine |
| Model No. of steam turbine |
B7.5-9.2/6.7//535 |
| Rated power |
MW |
7.5 |
| Rated speed |
r/min |
3000 |
| Rated steam inlet pressure |
Mpa(a) |
9.2 |
| Rated steam inlet temperature |
ºC |
535 |
| Rated steam inlet flow |
t/h |
360 |
| Max steam inlet flow |
t/h |
410 |
| Rated exhaust steam pressure |
Mpa(a) |
6.7 |
| Rated exhaust steam temperature |
ºC |
503 |
| Steam consumption |
kg/kw.h |
50.5 |
| Max exhaust steam temperature during no-load operation |
ºC |
490 |
| Power generation at max steam intake |
kw.h |
7775 |
| Max component weight |
t |
10 |
| Dimension |
m |
4.58*2.93*1.69 |
| OEM service is available. According to customers's parameter requirement, we can customized R&D, produce and supply steam turbines. |
Parameters of other high temperature, high pressure backpressure steam turbines
| Model |
Power
(MW) |
Steam inlet parameter |
Steam consumption
(kg/kw.h) |
exhaust steam pressure
(Mpa) |
Steam intake
(t/h) |
Speed
(r/min) |
Pressure
(Mpa) |
Temperature
(ºC) |
| B3-8.83/6.2//535 |
3 |
8.83 |
535 |
50 |
6.2 |
170 |
3000 |
| B7.5-8.83/6.5//535 |
7.5 |
8.83 |
535 |
52.8 |
6.5 |
380 |
3000 |
| B7.5-9.2/6.7//535 |
7.5 |
9.2 |
535 |
50.5 |
6.7 |
360 |
3000 |
| B10-13.1/6.9//535 |
10 |
13.1 |
535 |
24.5 |
6.9 |
240 |
3000 |
Generator parameters
Introduction to Steam Turbine:
A steam turbine is a rotating power machine that converts the thermal energy of steam into mechanical energy, widely used in the field of thermal power generation.
Basic Working Principle:
The steam turbine operates based on a thermodynamic cycle, where high-temperature and high-pressure steam drives blade rotation to perform work. Steam generated by the boiler enters the turbine, expanding and accelerating in nozzles or stationary blades, converting thermal energy into kinetic energy. The high-velocity steam impacts the moving blades (rotor blades), pushing the rotor to rotate, thereby converting kinetic energy into mechanical energy. The turbine rotor is connected to drive the generator rotor to rotate for power generation and output.
Main Types:
- Condensing Steam Turbine:
Exhaust steam from the turbine enters a condenser to form condensed water, which is returned to the boiler via a condensate pump for recycling and power generation.
- Backpressure Steam Turbine:
Exhaust steam from the turbine is used for heating or downstream industrial processes (cogeneration of heat and power).
- Extraction Steam Turbine:
Part of the steam is extracted from the middle of the turbine for heating purposes (balancing industrial needs and power generation).
Key Components:
Rotor: A rotating component equipped with moving blades, responsible for transmitting mechanical energy.
Stationary Blades (Nozzles): Fixed components that guide steam to accelerate and control its flow direction.
Cylinder (Housing): Withstands pressure and separates high-temperature/low-temperature zones.
Regulating System: Controls steam flow and pressure (e.g., speed control valves).
Auxiliary Equipment: Condensers, feed water pumps, lubrication oil systems, etc.
Application Fields:
Power Generation: Thermal systems in high-energy-consuming industrial sectors such as chemical engineering, steel, coking, combined heat and power supply, papermaking, printing and dyeing, sugar refining, metallurgy, and building materials. It replaces desuperheating and pressure-reducing devices for power generation.
Industrial Drive: Drives large machinery such as compressors and pumps.
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.
1. Q: How to determine the parameters of steam turbine?
R: Design steam turbine units with different working conditions according to the customer's current production technical parameters to meet production needs.
2. Q: How to determine the quality of steam turbine?
R: You can do it through on-site field visits and provide relevant inspection and testing reports and other materials.
3. Q:How to install the steam turbine?
R: After the steam turbine arrive at your site, we will dispatch relevant technical personnel to your country for on-site installation and debugging.
4. Q: How to ensure after-sales service?
R: The company's technical staff solves difficult problems online and offline. If needed, our company can our company can dispatch relevant technical personnels to your country for on-site installation and maintenance.
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