The OTSG, itself, does not have any moving parts, essentially it is a large heat exchanger. The ancillary equipment, such as safety valves, control valves, and attemperators have scheduled maintenance requirements as dictated by the equipment vendor, but again, the amount of equipment is reduced with an OTSG system.

All of our OTSG systems are fully modular comprising five major components: 1) the inlet module, 2) plenum module, 3) the pressure module (OTSG), 3b) the environmental controls module (optional), 4) the hood module, 5) the stack module.

The OTSG is a vertical shell counterflow straight-tube heat exchanger design which directly generates superheated steam as the feedwater flows through the steam generator in a single pass.

Each once-through steam generator (OTSG) is a vertical, straight, tube-and-shell heat exchanger which produces superheated steam at constant turbine throttle pressure throughout the power range. Figure 2.4-1 is a cross-sectional view of the OTSG.

The current research studies the coupled combustion inside the furnace and the steam generation inside the radiant and convection tubes through a typical Once-Through Steam Generator (OTSG). A...

HRST can design and supply retrofit pressure parts, complete convective section assemblies, and provide aftermarket product solutions to increase the reliability of your Once Through Steam Generators (OTSGs). Request Brochure

Once through steam generators are a type of heat exchanger used in pressurised water reactors (PWR) for boiling water into steam. Typically, there are two to four OTSGs per reactor. Each OTSG may be up to 21m in height and weigh up to 800 tons. Each OTSG is connected to a primary and secondary loop.

The GC Broach Company applies 52 years of experience in designing and manufacturing steam generation equipment to provide a superior Once Through Steam Generator (OTSG) design.

1998年6月1日 · The OTSG is capable of continuous full load operation in subzero weather without a building enclosure. Pressure parts are contained within the module casing, where it is always hot during gas...

Figure 4. OTSG Pressure Parts Steam Out SG system can be manipulated in a fashion to allow the OTSG units to be located directly above the gas turbines, particularly fo