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Steam Generator
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Steam Generator

A steam generator converts chemical energy from fossil fuels into thermal energy, transferring this heat to a working fluid, typically water, for use in high-temperature processes or for mechanical energy conversion in turbines. Unlike traditional steam boilers, steam generators are designed with fewer components and are especially suited for small modular reactors (SMRs), where they act as both a heat exchanger and a barrier to isolate contamination between the primary and secondary systems.

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Description

A steam generator converts chemical energy from fossil fuels into thermal energy, transferring this heat to a working fluid, typically water, for use in high-temperature processes or for mechanical energy conversion in turbines. Unlike traditional steam boilers, steam generators are designed with fewer components and are especially suited for small modular reactors (SMRs), where they act as both a heat exchanger and a barrier to isolate contamination between the primary and secondary systems.



Advantages  :

  • High Thermal Efficiency: The use of superheated steam improves heat conversion efficiency.

  • Compact and Quick Start-Up: Smaller and faster to start than traditional firetube boilers, ideal for on-demand applications.

  • Simplified System: The design eliminates the need for steam drums and separators, making the system less complex and easier to maintain.

  • High Steam Quality: A steam/water separator ensures 99.5% steam quality for efficient, stable steam supply.

  • Ideal for SMRs: Perfectly suited for small modular reactors, providing reliable, efficient service.


Application:

Nuclear Power Plants, fossil fuel power plants, industrial high-temperature processes.





Operating Principle:

The steam generator operates on a once-through, forced-flow design, where feedwater passes through a coil and is converted into steam in a single pass. As water flows through the coil, it absorbs heat from hot gases, turning into steam. This design does not require a steam drum like traditional boilers, but a steam/water separator is used to ensure 99.5% steam quality.


In this setup, water flows through the coils without recirculating, which increases thermal efficiency and simplifies the system by eliminating the need for moisture separators and other complex components.


Pressure vessel

According to the principle of action in the production process, pressure vessels are divided into reaction pressure vessels, heat exchange pressure vessels, separation pressure vessels, and storage pressure vessels. The specific division is as follows:

Heat exchange pressure vessel (code E): It is mainly used to complete the heat exchange of the medium, such as shell and tube heat recovery boiler, heat exchanger, cooler, condenser, heater, sterilizer, dyeer, drying cylinder, steaming wok, preheating pot, solvent preheater, steamer, evaporator, electric steam generator, gas generator water jacket, etc.


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