High-Efficiency 10MW High Temperature, Ultra-High Pressure High Backpressure Steam Turbine Generation B10-13.1/6.9//535

• Customization: Available
• After-sales Service: Global After-Sales Service
• Warranty: 12 Months After Supply
• Model NO.: B10-13.1/6.9//535
• Power: 10MW
• Generator Type: Synchronous Generator
• Certification: CCC, ISO, TLC
• Standard: Nonstandard
• Form: Impulsive
• Material: Comply with Standards
• Medium: Steam
• Adjustment Method: Electro-Hydraulic Regulation
• Steam Inlet Pressure: 13.1MPa
• Steam Inlet Temperature: 535ºC
• Steam Consumption: 24.57kg/Kw.H
• Steam Intake: 240ton/H
• Speed: 3000r/Min
• OEM, ODM: Available
• Transport Package: Container
• Specification: Different power
• Trademark: YTS
• Origin: China
• HS Code: 840682
• Production Capacity: 50

Product Description

 

Product Parameters

Type of steam turbine	High Temperature, Ultra-High Pressure High Backpressure Steam Turbine
Model No. of steam turbine	B10-13.1/6.9//535
Rated power	MW	10
Max power	MW	10.8
Rated speed	r/min	3000
Rated steam inlet pressure	Mpa(a)	13
Rated steam inlet temperature	ºC	535
Rated steam inlet flow	t/h	240
Max steam inlet flow	t/h	260
Rated exhaust steam pressure	Mpa(a)	6.9
Rated exhaust steam temperature	ºC	444
Min exhaust steam flow	t/h	67
Exhaust temperature at min exhaust steam flow	ºC	473
Max exhaust steam temperature during no-load operation	ºC	490
Relative internal efficiency under rated conditions	%	78
Max component weight	t	14
Dimension	m	4.78*1.68*2.93
OEM service is available. According to customers's parameter requirement, we can customized R&D, produce and supply steam turbines.

other high temperature, high pressure backpressure steam turbine

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

Dynamo					Exciter
model	capacity	Voltage	Power Factor	efficiency	power	Voltage
	KVA	V		%	KW	V
QFK-3-2	3750	6300	0.8	95.3	30	100
		3150
QF-3-2	3750	10500	0.8	95.3	30	100
		6300
QF-6-2	7500	10500	0.8	96.4	45	150
		6300
QF-7-2	8750	10500	0.8	97	45	150
		6300
QF-12-2	15000	10500	0.8	97	65	230
		6300
QF-15-2	18750	10500	0.8	97	65	230
		6300
QF-25-2	31250	10500	0.8	97.4	105	230
		6300
QF-30-2	37500	10500	0.8	97.6	105	230
		6300

Product Description

Backpressure steam turbine 
is a type of steam turbine where the exhaust steam pressure is intentionally maintained above atmospheric pressure. Unlike condensing turbines (which exhaust steam at low pressure into a condenser), backpressure turbines discharge steam at a higher pressure, allowing the exhaust steam to be reused for process heating or district heating purposes. This design makes them highly efficient in combined heat and power (CHP) systems.

Working Principle

1. Steam Inlet: High-pressure steam from a boiler enters the turbine and expands through a series of nozzles and blades, converting thermal energy into mechanical shaft power (used for generating electricity or driving machinery).
2. Exhaust Steam: Instead of releasing low-pressure steam into a condenser, the turbine exhausts steam at a controlled higher pressure (e.g., 0.5-5 bar, depending on the application).
3. Heat Utilization: The high-temperature exhaust steam is directed to industrial processes (e.g., heating, drying, or powering other equipment) or residential/commercial heating systems, maximizing energy efficiency by eliminating "cold source losses" (common in condensing turbines).

Applications

1. 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.
2. District Heating
   • Supplies high-temperature steam or hot water for residential/commercial heating in cities (e.g., Copenhagen's CHP network).
3. Mechanical Drive
   • Directly powers pumps, compressors, or fans in industrial settings (e.g., in oil and gas plants).

Advantages

• High Energy Efficiency: No heat loss to a condenser; exhaust steam energy is fully utilized.
• Lower Capital Cost: Simpler design (no condenser, cooling towers, or related systems).
• Compact Size: Ideal for space-constrained industrial sites.
• Reliable for Stable Heat Loads: Performs efficiently when heat demand is consistent (e.g., continuous industrial processes).
• Backpressure steam turbine is a cornerstone of sustainable energy systems, optimizing both power and heat production.

YTS's Technical Advantages

Structural Characteristics

Our company customizes and independently develops high-efficiency steam turbine units for different projects, which are multi-stage small enthalpy drop impulse steam turbines. Different from the turbine rotors of other manufacturers, the design has 2-4 more pressure stages; the distance between flow stages is reduced, allowing more stages to be arranged in the flow part. The enthalpy drop of each stage is decreased, the flow diameter is reduced, and the blade height loss is significantly minimized.

The flow part of the steam turbine also optimizes the profile design of blades, nozzles, and diaphragm nozzles, effectively reducing all losses in the turbine flow part, thereby improving the mechanical conversion efficiency of the steam turbine. It has a wide load adaptability and overload capacity.
 

(1) Rotor Processing

The rotor is numerically controlled and finely processed to completely eliminate residual stress. The operation vibration value and failure rate are significantly lower than those of the traditional models of other manufacturers.

(2) Blades

Adopts variable root diameter design, allowing steam to expand smoothly along the flow direction. All moving blades of each stage are straight blades, and the impeller uses a T-type root design to adapt to sudden working conditions and ensure operational reliability.
The top of each blade is fully equipped with a shroud band to increase blade strength, eliminate excitation frequency, and 2-4 stages of steam blocking pieces are designed at the blade tip to form a tip steam seal, preventing steam leakage and improving internal efficiency.

(3) Steam Chamber

The steam chamber of the steam turbine adopts an integrated design, and the cylinder shape is optimized to a spherical structure, which is more reasonable and compact, with uniform thermal expansion, making it less prone to deformation that causes steam leakage from the middle split surface due to front-end deformation of the cylinder.
The inlet device of the high-pressure steam chamber uses a graphite ring seal, which is safe and reliable, achieving zero leakage.

(4) Cylinder

Features fast thermal startup, enabling the unit to expand and contract freely during startup, shutdown, and variable working conditions.
The cylinder is integrally cast, which not only reduces the external dimensions but also simplifies the structure and minimizes leakage points. The startup time is reduced by more than one-third compared to the traditional sleeve cylinder models of other manufacturers, greatly reducing steam loss during turbine startup.

(5) Steam Seal

The steam seal part adopts a patented design of reverse pressure steam seal device, ensuring no steam leakage during operation. The front and rear steam seals and intershaft steam seals of the turbine are all axial-flow labyrinth seals.
The labyrinth seal ring is processed into a "city wall "-type structure and divided into four or six arc segments, embedded in the seal groove and pressed by spring plates. During operation, under the action of spring force and steam pressure, the seal arc segments press inward. Once friction occurs in the seal, the segments retreat outward under the friction force to reduce friction damage.
This significantly reduces interstage losses and steam leakage of the unit, with steam leakage reduced by more than 50% compared to traditional models, improving the unit efficiency.

Simple Maintenance and Less Overhaul Time

The integral rotor and full-circumference steam inlet structure design enable the unit to operate without failure under any load required by the system, with the following main features:

A.	For models with the same rotation speed, direct connection to the generator ensures high efficiency, improving efficiency by more than 5% compared to domestic similar units, with a smaller volume and floor area.
B.	The flow part design and calculation of the steam turbine are more reasonable, and the profile of all blades in the flow part is in line with the most advanced blade profiles in the world, enhancing work efficiency.
C.	The turbine shaft seal and blade tip steam seal adopt internationally advanced seal structures, effectively reducing shaft seal and interstage steam leakage.
D.	The rotor diameter is reduced, the blade length is increased, various contact clearances are further compressed, the steam seal has strong tightness, reducing steam leakage, and steam is fully utilized to do work under the same working conditions, thus achieving high efficiency and more power generation.
E.	Integrally forged rotor assembly structure: The rotor uses an integral forging, which is an integrally forged rigid rotor. The impeller and shaft are integrated, increasing operational safety and stability.
F.	Multi-stage pressure stages: Its unique multi-stage flow design significantly improves the unit efficiency. The optimization of the flow structure enables the unit to output more power and do more work under the same working conditions, directly generating energy-saving economic benefits.
G.	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;

Operational Characteristics and Technical Advantages

• The internal efficiency of the steam turbine is high, and the steam consumption is low. Compared with the steam turbines of other manufacturers, the designed internal efficiency of the same working condition model is increased by about 5%.
• The designed steam turbine unit has small operation vibration, and the current unit vibration is within 0.015mm.
• The designed steam leakage of the turbine is reduced compared to the traditional models of other manufacturers.
• The regulation system adopts an independent anti-wear hydraulic oil pure electro-hydraulic regulation system. Compared with other manufacturers that use low-pressure oil regulation and emergency protection systems shared with oil stations, the oil motor has a large pulling force, is not prone to sticking, has high regulation accuracy, and fast emergency shutdown response speed. It eliminates the hidden dangers of regulation and safety oil system failures caused by water ingress, emulsification, and deterioration in the shared lubrication oil system, and is more economical and safer than anti-friction oil.

Comparing with similar steam extraction back pressure steam turbine 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.

Real Object Image

 

 

 

Company Profile

Anhui Yuteshuang Energy Saving Technology Co., Ltd.(YTS) mainly focuses on thermal systems in large-scale manufacturing and high-energy-consuming industrial fields such as chemical industry, steel, coking, cogeneration, papermaking, printing and dyeing, sugar making, metallurgy, and construction materials. It is committed to the development and manufacturing of high efficiency and energy saving steam turbine, technical modification for efficiency improvement of industrial steam turbine flow structure, operation mode conversion, and comprehensive utilization of waste heat and waste pressure for power generation, and supply of second-hand steam turbine generator sets. It is also an investment service enterprise with the capability of overall systemic research, consulting, diagnosis, development, promotion, investment, construction and operation, including the production and supply of energy-saving and consumption-reducing products and the implementation of energy-saving plans. 
Our company currently owns 67 patents of utility model 23 invention patents, including "Energy-saving and consumption-reduction steam turbine" and "Safe noise-reducing steam turbine".
Our company's professional and technical capability, the quantity and quality of its cases are all in a leading position in Chinese domestic market. A single case can generate at least 1000kw/h of energy-saving electricity, and a single project can create more than 4.2 million yuan of energy-saving benefits per year. So far, our company's technical conversion investment projects have achieved the performance of total energy saving electricity of 800 million kWh annually, saved more than 250,000 tons of standard coal, and reduced emissions of carbon oxides and dust by more than 700,000 tons. It brings good economic and social benefits, and at the same time it has achieved a win-win situation for both parties and society.
Our company's core technologies and cases have been listed into National Recommended Catalogue, Guideline and Cases of Industrial Energy-Saving Technologies and Equipments of the Ministry of Industry and Information Technology (MIIT) of China for two consecutive years, National Industrial Power Demand-Side Management Reference Products (Technologies) Catalogue, National Industrial Advanced and Applicable Technologies Catalogue (First Batch), selected as National Energy Conservation Diagnosis Service Provider Recruitment Project for four consecutive years, which are released by Chinese Ministry of Industry and Information Technology (MIIT). Our company has been awarded over 80 national-level and provincial/ministerial-level certifications and honors to date.
Our company wins clients with honesty, and serves clients with high-quality products. Always adhere to the concept of energy saving, high efficiency and environmental protection and develop the new type efficient steam turbine independently. The company provides the one-stop service of scientific R&D, design and manufacturing, engineering installation. Comparing with same type of product in the market, the efficiency of the steam turbine is creased by 7 - 40%.

Certficates&honors

FAQ

1. Q: How to determine the parameters of the 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. And the companies we cooperated supplied are large Chinese central SOEs, state-owned enterprises, China's top 500s, listed companies, etc., have received high praise from customers.
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.