GESTRA Condensate Recovery and Return Systems GESTRA : ++49 (0) 421-35 03 566 Condensate flowrate Condensate temperature Condensate pressure Tank design: Cylindrical Rectangular Horizontal Vertical Condensate pumps: Qty. Discharge head Discharge control: Level electrode yes no Supply options: Accessories detached No accessories Accessories assembled and interconnected Condensate tank made of: Steel Stainless steel grade 1.4571 Mains voltage Horizontal pump Vertical pump Submersible pump Typical Installations Open System Condensate receiver tank of cylindrical design type SD L (S) with high-pressure centrifugal pump(s) installed next to tank L = horizontal design S = vertical design Condensate tank of rectangular design type SDR A with highpressure centrifugal pump(s) installed next to tank Closed System Condensate receiver tank of cylindrical design type SD L (S) with horizontal-type centrifugal pump(s) installed next to tank L = horizontal design S = vertical design Condensate tank of rectangular design type SDR I with submersible condensate pump(s) bolted on top C 149
GESTRA Desuperheating Plants GESTRA : ++49 (0) 421-35 03 566 Reducing of steam pressure yes no If yes, Self-acting control Electric Electro-pneumatic Steam flowrate Steam pressure: P 1 P 2 P 3 bar/psi upstream of pressure reducing station bar/psi downstream of pressure reducing station or when no more pressure reduction takes place bar/psi downstream of cooling station Steam temperature: t 1 or t 2 C upstream of pressure reducing station or when no more pressure reduction takes place C downstream of cooling station t 3 Cooling fluid: P 4 bar/psi upstream t 4 C upstream of cooler of cooler if not fitted with pump yes no Water-bath desuperheater t 3 = ts Injection cooler t 3 = t s +>5 controllable Supply options for water-bath desuperheater: Accessories detached Accessories assembled Optional equipment: High-temperature alarm Excess temperature protection Low-water level alarm Special requirements concerning cooler: Material Steel Stainless steel grade 1.4571 Typical Installations System 1 Injection cooler with fixed jet orifices System 3 Water-bath desuperheater 150
GESTRA Steam Regenerators GESTRA : ++49 (0) 421-35 03 566 Thermal output Service data (primary) Medium: Steam Hot water Thermal oil Pressure bar/psi Temperature C Flowrate Services data (secondary) Medium: Steam Pressure bar/psi Temperature C Flowrate Control (pressure side) Self-acting Electric Pneumatic Feedwater control Solenoid valve or motorized valve Feedwater pump Application Typical Installations Steam regenerator Pure steam Heating steam Condensate Internittent/continuous boiler blowdown Feedwater C 151
GESTRA Deaerating Plants GESTRA : ++49 (0) 421-35 03 566 Boiler capacity Make-up water flowrate Temperature approx. C Steam pressure Service pressure (deaerator) Make-up feed control Electric Pneumatic Pressure control Self-acting Electric Pneumatic Typical Installation Boiler blowdown Condensate 152
GESTRA Flash Vessel Systems GESTRA : ++49 (0) 421-35 03 566 Pressure p1 upstream of steam trap at steam user P1 = bar(a)/psi(a) (boiler pressure at flash vessel) Pressure p2 of flash steam at flash outlet to low pressure systemp2 = bar(a)/psi(a) Pressure p3 downstream of steam trap after the flash vessel P3 = bar(a)/psi(a) Condensate flowrate to flash off m = kg/h Flash vessel material Please state all pressure specifications in bara or psia! Typical Installation Flash-steam outlet P2 Condensate from H.P. user P1 Gas balance pipe to condensate tank P3 Drain C 153
GESTRA Blowdown Receiver (Mixing Cooler) GESTRA : ++49 (0) 421-35 03 566 Hot-water flowrate Hot-water temperature Hot-water pressure Cooling-water temperature Material Steel Stainless steel grade 1.4571 Application Boiler blowdown Other Cooling-water pressure Typical Installation Mixing cooler with cooling-water control and, on request, with additional flash-steam condensation Flash-steam discharge or vent Cooling water Hot water from blowdown, overflow etc. Thermostat Drain Mixed cooled water to drain 154
GESTRA Heat Exchanger GESTRA : ++49 (0) 421-35 03 566 Thermal output Control Self-acting Electric Service data (primary) Medium: Steam Hot water Thermal oil Pressure bar/psi Temperature C Flowrate Controlled from the condensate side Pneumatic Material: Steel Stainless steel grade 1.4571 Service data (secondary) Design Horizontal Vertical Medium: Steam Hot water Thermal oil Pressure bar/psi Temperature C Flowrate Material: Steel Stainless steel grade 1.4571 Typical Installation Hot water inlet GESTRA Heat Exchanger controlled from the steam side with constant temperature of the secondary circuit Heating steam Hot water return 1 Condensate Steam inlet Heating circuit supply Heating circuit return Condensate outlet GESTRA Heat Exchanger controlled from the condensate side as a function of the outside temperature and safety shut-down controlled from the steam side C 155
GESTRA Steam Separator GESTRA : ++49 (0) 421-35 03 566 Medium: Saturated steam Superheated steam Air Gas Flowrate: ṁ = kg V N = Nm 3 /h Service pressure: p = bara/psia Service temperature: t = C Approved pressure: p = barg/psig Approved temperature: t = C Inspection and certification: Connections: Inlet/Outlet: DN/PN Condensate outlet: DN/PN Material: S235JRG2 P265GH 16 Mo 3 (RSt 37-2) (H II) 1.4541 1.4571 (V2A) (V4A) Connection arrangements: 156