Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
The rear cylinder, also known as the low-pressure exhaust cylinder, is one of the most critical large-sized casings of a steam turbine. It accommodates the low-pressure rotor and inner casing components, undertakes the final-stage low-pressure steam exhaust, and serves as the transition connecting component between the turbine and the condenser.
During unit operation, it bears combined loads of low-temperature wet steam, atmospheric pressure, vacuum pressure, thermal deformation and bolt pre-tightening force. Its sealing and structural performance directly determine the vacuum degree of the whole unit and affect overall power-generation efficiency.
Customized Solutions
We provide fully-customized rear cylinder solutions based on client-supplied drawings, unit specifications and actual on-site operating conditions. Our products are widely applied in new-build power projects, turbine modification & upgrading, and overhaul spare-part supply for thermal power plants, combined heat-and-power plants, industrial waste-heat power stations, chemical captive power plants and biomass power facilities.
Material & Manufacturing Process
High-quality cast steel conforming to turbine industry standards is adopted for casting. The complete manufacturing workflow includes:
Pattern making and casting
Stress-relieving heat treatment
Rough machining
Multi-procedure non-destructive testing (UT, MT)
Precision CNC finishing
Horizontal split flange processing
Exhaust nozzle mating surface machining
Dimensional assembly verification
Strict process control eliminates casting defects such as porosity and inclusions and releases internal residual stress to guarantee stable material performance.
Core Product Advantages
High Structural Rigidity & Anti-deformation Capacity
Optimized wall-thickness design and reinforcing-rib layout effectively resist deformation caused by vacuum pressure, temperature fluctuation and external load, maintaining stable dimensional accuracy under long-term cyclic operating conditions.
Excellent Vacuum-maintaining Sealing Performance
High-precision machining for horizontal joint flanges, bolt holes and mating surfaces minimize air ingress points, stabilize unit vacuum level, reduce exhaust loss and improve overall generating efficiency.
Strong Resistance to Wet-steam Erosion & Thermal Stress
Reasonable flow-channel structural design adapts to low-pressure wet-steam working conditions, mitigating thermal stress risk during startup, shutdown and load variation, lowering cracking risk and extending service life.
Comprehensive Customization Capability
Customizable overall dimensions, flange layout, exhaust port size and position, bolt specifications, inner flow-passage profile and condenser connecting interfaces. Services include drawing-based OEM production and reverse-engineering manufacturing according to original unit parameters.
Rigorous Quality Assurance
Each finished rear cylinder undergoes full-set acceptance inspections: dimensional tolerance measurement, surface quality examination, multi-item NDT non-destructive testing and material certification validation. Complete traceable production documents will be provided for customer acceptance.
Application Scenarios
Suitable for steam turbine units of various capacities in:
Thermal power plants
Cogeneration plants
Metallurgical waste-heat power stations
Chemical enterprise self-owned power plants
Biomass power generation
Other energy-generation projects
We offer one-stop services including technical consultation, structural optimization suggestion, production, factory acceptance and after-sales technical support.
Please send us your drawings or unit technical parameters for quotation and customized solution discussion.
