Apparatus and method for side stream demineralization of condensate in a steam cycle

Patent · Tue Oct 25 04:00:00 EDT 1977

OSTI ID:6496357

Reed, C W

Condensate purification such as demineralization, filtration or sterilization for use in a power plant of the type having at least one main condenser with a hot well as part of the steam cycle and in which the condenser is connected to receive steam from a turbine generator and the hot well is connected to discharge to a main condensate pump. Purification of the condensate is executed with improved method and apparatus comprising a side stream demineralization system. The improvement includes a baffle mounted within said main condenser defining an upstream portion of the condenser on one side of the baffle and a downstream portion of the condenser on the other side of said baffle. The condenser hot well is located on the downstream side of the baffle. A passageway is defined over the baffle for flowing fluid therethrough to the hot well. The passageway includes a weir cooperatively disposed therewith on the upstream side of the baffle to hold back a pool of fluid from flowing through the passageway. Apparatus for water purification comprising demineralizers is spaced apart from the condenser. A first pipe connects said pool of fluid with the purification apparatus. A pump is connected with the first pipe for causing fluid flow through the purification apparatus. A second pipe is provided for connecting the water purification apparatus with said pool for recirculating water back to the pool for further purification. A third pipe connects said purification apparatus with the downstream side of the baffle so that the condensate water can reach said hot well. Optionally the condensate can be reheated while flowing towards the hot well.

• Assignee: TIC; ERA-04-026218; EDB-79-041850
• Patent Number(s): US 4055048
• OSTI ID: 6496357
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200104* -- Fossil-Fueled Power Plants-- Components
CONDENSATES
DEMINERALIZATION
DEMINERALIZERS
DESIGN
OPERATION
POWER PLANTS
PURIFICATION
RECYCLING
SEPARATION PROCESSES
STEAM TURBINES
THERMAL POWER PLANTS
TURBINES
TURBOMACHINERY