Condensate Polishing Unit

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STEAM-CYCLE POLISHING

Condensate Polishing Unit

Ahura Aqua designs and manufactures condensate polishing units for high-pressure boiler & steam-cycle applications, where returned condensate must be purified before it re-enters the boiler feed water circuit.

By restoring condensate to feed-water quality, our CPUs protect boiler tubes & turbine blades, stabilise steam-water cycle chemistry and sharply reduce the demand for fresh DM make-up water.

WHY IT MATTERS

Closing the Steam-Water Loop

Returned condensate picks up suspended iron & copper oxide scoured off pipework, plus dissolved sodium, silica and chloride. Left untreated this scales boiler tubes, deposits on turbine blades and drives up cycle conductivity. A CPU intercepts the return, strips both loads and sends polished, low-conductivity condensate back to the deaerator — lifting recovery and cutting fresh DM demand.

Line of Treatment

RETURNED → POLISHED CONDENSATE

HOW IT WORKS

01 Condensate Inlet & Pre-Filtration

Returned condensate passes through strainers, cartridge or powdered-resin precoat filters that capture suspended iron & copper oxide, rust and fine colloidal corrosion products before the ion-exchange stage.

02 Cation / Anion Exchange

Dissolved ions — sodium, chloride, sulphate and hardness leakage — are removed across selected cation & anion resin beds, bringing down ionic contamination and conductivity.

03 Mixed-Bed Resin Polishing

A mixed bed delivers the final polish for silica, sodium and conductivity, producing high-purity condensate fit for return to the boiler feed circuit.

04 Monitoring, Regeneration & Return

Online conductivity (and optional silica / sodium) instrumentation guides service, rinse & regeneration. Exhausted resin is regenerated with acid & caustic; automated units run valves, regeneration and alarms on a PLC.

STANDARD FEATURES

F-01

Pressure Vessels

Stainless steel or rubber-lined mild steel.

F-02

Pre-Filtration

Cartridge / precoat ahead of the resin beds.

F-03

Three-Stage Resin

Cation, anion & mixed-bed polishing.

F-04

Regeneration Skid

Acid-caustic, external or in-situ.

F-05

PLC + Instrumentation

Online conductivity, optional silica / sodium.

CONFIGURATIONS WE OFFER

Service Flow: 2.5–75 m³/hr

Configuration A

Deep-Bed Mixed-Bed Polisher

High-capacity polishing for sodium, silica, chloride, sulphate & conductivity reduction in high-pressure circuits.

CONFIGURATION B

Powdered-Resin Precoat Filter CPU

Captures fine iron / copper oxide & colloidal corrosion products, with fast response to condenser-leak contamination.

CONFIGURATION C

Cation / Anion Polishing System

Separate exchange stages for targeted ionic-load reduction & flexible regeneration.

CONFIGURATION D

Automatic CPU with Regeneration Skid

PLC valves, instrumentation, acid / caustic regeneration, rinse sequencing & alarms for unmanned operation.

CAPACITY RANGE

— m³/hr

(spec on enquiry)

Sized to condensate return rate & cycle chemistry.

TYPICAL APPLICATIONS

Thermal, captive & cogeneration power plants

Refinery, petrochemical & process-utility boilers

Steel, fertilizer, sugar, paper & chemical plant boiler houses

DM water recovery & steam-cycle chemistry control

Recovering condensate from a high-pressure boiler?

Talk to us about the right CPU configuration for your cycle chemistry.

Careers

Ahura Aqua

"Sustainable water engineering"

STEAM-CYCLE POLISHING