Flash Recovery from TDS Control System

Recovering energy from flash steam and residual blowdown.

Flash Recovery from TDS Control System

Component Descriptions

Part Component Function
1 Electric Actuator to drive the cold water make-up valve
2 Control Valve to regulate the cold water make-up flow
3 Vacuum Breaker to prevent backsyphoning of tank water
4 Vent Head to discharge flash steam at a safe velocity
5 Strainer to protect the control valve from detritus
6 Electronic Controller to control the make-up water level in the tank
7 Capacitance Probe to sense the tank water level
8 Isolation Valve to isolate the pump from the cold make-up tank
9 Recirculating Pump to circulate the make-up water trough the heater
10 Strainer to protect the pump from detritus
11 Isolation Valve to isolate the pump from the heater
12 Isolation Valve to isolate the heater from the make-up tank
13 Strainer to protect the heater from detritus
14 Pressure Gauge to monitor the flash vessel pressure
15 Flash Vessel to separate the flash steam from residual blowdown
16 Safety Valve to protect the downstream equipment from overpressure
17 Ball Float Steam Trap to drain the blowdown water from the flash vessel
18 Drain Valve to drain the flash vessel for maintenance purposes
19 Drain Valve to drain the pumped circuit for maintenance purposes
20 Plate Heat Exchanger to heat the make-up water from the blowdown water
21 Temperature Sensor to activate the pump during blowdown periods
22 Flash Condensing Head to condense flash steam in the boiler feedtank
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Table of Parts

Part   Component Bronze Cast iron SG iron Steel Stainless steel Product details
1 Electric Actuator EL5600 Series Actuator Electric Actuators
2 Control Valve     KE73 KE43   Control Valves
3 Vacuum Breaker VB14       VB21 Vacuum Breakers
4 Vent Head VH Series Vent Head Vent Heads
5 Electronic Controller LC2200 Level Controller Level Controls
6 Air Vent AV13     AVC32   Air Vents & Air Eliminators
7 Capacitance Probe LP20 Level Probe with PA20 Preamplifier Level Controls
8, 11, 12, 18, 19 Ball Valve       M10 M10 Ball Valves
9 Recirculating Pump RP1 or RP2 Recirculating Pump TDS Blowdown Controls (see SB-P404-11)
10, 13, 22 Strainer Fig 1 or 12   Fig 12SG Fig 14 Fig 16 Strainers & Filters
14 Pressure Gauge 100 mm Diameter Pressure Gauge with 'U' or Ring Syphon Pressure Gauges & Temperature Gauges
15 Flash Vessel FV Type Flash Vessel TDS Blowdown Controls
16 Safety Valve   SV73 SV607 SV74, SV604 SVL606 Safety Valves
17 Ball Float Steam Trap with Monitor     IFT14     Steam Trap Performance Monitoring
20 Heat Exchanger M3, M6 Series Plate Heat Exchanger Heat Recovery Systems
21 Thermostat Type HTS3 TDS Blowdown Controls (see SB-P404-11)
22 Flash Condensing Head Type DH Feedtanks
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