Save energy with improved no-pump condensate return

Journal Article · Sun May 01 04:00:00 EDT 1983 · Power; (United States)

OSTI ID:5677900

O'Keefe, W

The return of condensate to the boiler is problematic because of various flows and temperatures near the flashing point. Another difficulty is the higher temperature of today's energy-conservation condensates without subcooling. A solenoid valve-controlled collecting tank for cold to warm water has been developed by Johnson Corp. A probe level sensor and solenoid-powered three-way valve control the flow of steam or air. Recent improvements include integrated receiving and valving. A closed system with a flash tank prevents flashing in the overhead receiver and eliminates venting problems. The system has also been adapted to turbines to supplement the condensating pump. In all variations, the overhead receiver intercepts condensate so that there is no direct discharge, and therefore damage, to the equalizing chambers. Flashing in the discharge lines is checked by orifices. Two check valves are in the system.

• OSTI ID: 5677900
• Journal Information: Power; (United States), Journal Name: Power; (United States) Vol. 127:5; ISSN POWEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
BOILERS
CONDENSATES
CONTAINERS
CONTROL
CONTROL EQUIPMENT
DESIGN
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ENERGY RECOVERY
EQUIPMENT
EVAPORATION
FLASHING
FLOW REGULATORS
FLUID MECHANICS
HEAT RECOVERY
MECHANICS
PHASE TRANSFORMATIONS
PROBES
RECOVERY
SOLENOIDS
TANKS
TEMPERATURE CONTROL
VALVES