| Customization: | Available |
|---|---|
| After-sales Service: | Global After-Sales Service |
| Warranty: | 12 Months After Supply |
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| Type of steam turbine | 25MW Extraction Back-pressure Steam Turbine | |||
| Model No. of steam turbine | CB25-8.83/2.8/0.98 | |||
| MW | 25 | |||
| Rated speed | r/min | 3000 | ||
| Rated steam inlet pressure | Mpa | 8.83 | ||
| Rated steam inlet temperature | ºC | 535 | ||
| Rated steam inlet flow | t/h | 219 | ||
| Rated exhaust steam pressure | Mpa | 0.98 | ||
| Rated steam consumption | kg/kw.h | 8.76 | ||
| Max component weight | ton | ~15 | ||
| Dimension | meter | 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 models of extraction back-pressure steam turbine
| model | Power(MW) | Steam inlet parameters | Pumping parameters | Steam consumption(kg/kw.h) | Speed(r/min) | exhaust pressure (Mpa) |
|||
| Pressure(Mpa) | Temperature(ºC) | Flow (t/h) |
Pressure(Mpa) | Flow (t/h) |
|||||
| CB15-3.43/0.98/0.53 | 15 | 3.43 | 435 | 150.2 | 0.98 | 20 | 10 | 3000 | 0.53 |
| CB14.1-4.9/3.0/0.9 | 14.1 | 4.9 | 470 | 150 | 3 | 12 | 10.638 | 3000 | 0.9 |
| CB15-4.9/1.57/0.49 | 15 | 4.9 | 435 | 200 | 1.57 | 50 | 13.33 | 3000 | 0.49 |
| CB13.6-4.9/2.5/0.98 | 13.6 | 4.9 | 470 | 152.6 | 2.5 | 12 | 11.22 | 3000 | 0.98 |
| CB10-6.4/1.36/0.49 | 10 | 6.4 | 435 | 100 | 1.36 | 15 | 10 | 3000 | 0.49 |
| CB10-8.83/0.98/0.6 | 10 | 8.83 | 535 | 75 | 0.98 | 25 | 7.5 | 3000 | 0.6 |
| CB25-8.83/2.8/0.98 | 25 | 8.83 | 535 | 219 | 2.8 | 70 | 8.76 | 3000 | 0.98 |
| CB30-9.2/3.0/0.8 | 30 | 9.2 | 535 | 239.5 | 3 | 60 | 7.98 | 3000 | 0.8 |
| CB18-9.2/2.8/0.98 | 18 | 9.2 | 535 | 160.2 | 2.8 | 40 | 8.9 | 3000 | 0.98 |
| CB16-12.7/2.5/1.76 | 16 | 12.7 | 535 | 152 | 2.5 | 35 | 9.5 | 3000 | 1.76 |
| dynamo | Exciter | |||||
| model | capacity | Voltage | Power Factor | efficiency | power | Voltage |
| KVA | V | % | KW | V | ||
| QFK-3-2 | 3750 | 6300 3150 |
0.8 | 95.3 | 30 | 100 |
| QF-3-2 | 3750 | 10500 6300 |
0.8 | 95.3 | 30 | 100 |
| QF-6-2 | 7500 | 10500 6300 |
0.8 | 96.4 | 45 | 150 |
| QF-7-2 | 8750 | 10500 6300 |
0.8 | 97 | 45 | 150 |
| QF-12-2 | 15000 | 10500 6300 |
0.8 | 97 | 65 | 230 |
| QF-15-2 | 18750 | 10500 6300 |
0.8 | 97 | 65 | 230 |
| QF-25-2 | 31250 | 10500 6300 |
0.8 | 97.4 | 105 | 230 |
| QF-30-2 | 37500 | 10500 6300 |
0.8 | 97.6 | 105 | 230 |
Extraction Back-pressure Steam Turbine
Extraction back pressure steam turbines are the extraction of a portion of the steam from the intermediate stage of the steam turbine for heat users who need a higher pressure level, while maintaining a certain back pressure for heat users who need a lower pressure level.
Working Principle
The basic principle of steam turbine operation is that the blades are affected by steam to produce a reaction force that pushes the impeller to rotate. On this basic principle, Extraction back pressure steam turbine reduces the pressure between the inlet and exhaust ends by extracting some of the steam. Therefore, the steam can fully release energy during the expansion process in the steam turbine and improve the efficiency of the steam turbine.
Application Fields:
The basic principle of the extraction back pressure steam turbine is a commonly used cogeneration equipment, and its basic principle is to use fuel combustion to produce high-temperature and high-pressure steam, drive the steam turbine to rotate, thereby generating mechanical work, and at the same time extract part of the steam for heating. The economy of this kind of unit is similar to that of the back-pressure unit, and the economy is better under the design working conditions, but the adaptability to load changes is poor.
·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.
Our company custom-designs and independently develops high-efficiency condensing steam turbine units, which are multi-stage small enthalpy drop impulse steam turbines. Different from the condensing steam turbine rotors of other manufacturers, the design has 2-4 more pressure stages; the design reduces the distance between flow stages, allowing more stages to be arranged in the flow part. The enthalpy drop of each stage is reduced, the flow diameter is decreased, and the blade height loss is significantly reduced. The flow part of the condensing steam turbine also optimizes the profile design of blades, nozzles, and diaphragm nozzles, effectively reducing all losses in the flow part of the condensing steam turbine, thereby improving the mechanical conversion efficiency of the condensing steam turbine and having a wide load adaptation capacity and overload capacity. This technology was selected into the 2019 China Industrial Energy Conservation Technology and Equipment Recommendation Catalog and Cases issued by the Ministry of Industry and Information Technology of China.
Our company's main technical configuration is to optimize the blade profile of conventional units. Through thermal calculation and following the law of "conservation of energy", the design condition parameters of the original unit are matched and optimized with the actual operating conditions. Meanwhile, new partitions are matched. The purpose is to revise the flow area and improve the flow structure, so that the unit can do work effectively and smoothly, thereby achieving the goal of energy saving and efficiency improvement.
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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