
Plate-Type ESR Systems
Multi-plate arrangements controlled by effective area, gap, flow distribution, current, collection surface and cleaning access.

Cooling Towers · Recirculating Water · Side-Stream Treatment
Electrochemical scale-removal equipment reviewed from complete water chemistry and system mass balance—not flow alone—with controlled side-stream duty, electrode area, current, hydraulics, cleaning, controls and verified project acceptance.
Important boundary: Performance boundary: electrochemical treatment can shift hardness/alkalinity into collectable deposits under defined conditions, but it does not guarantee chemical-free operation, corrosion control, microbiological control, water savings or a target cycle of concentration without project data and a complete water-management plan.
An ESR is normally applied to a side stream where electrochemical conditions promote mineral precipitation at a collection surface. Selection requires makeup and circulating-water analyses, evaporation and blowdown, cycles, heat load, treatment flow, residence time, electrode duty, removal/cleaning method and measurable baseline—not only total circulation flow.

These are engineering configuration families, not interchangeable catalogue claims. Final supply follows the approved project data and drawing.

Multi-plate arrangements controlled by effective area, gap, flow distribution, current, collection surface and cleaning access.

Cylindrical configurations reviewed by side-stream flow, velocity, pressure, electrode arrangement, deposit release and maintenance clearance.

Define pipe connections, treatment flow, pressure loss, bypass, electrode duty, isolation and cleanout boundary.

Include pump, strainer, cell, power/control, valves, sensors and solids-removal scope as ordered.

Define anode coating duty, cathodic collection area, spacing, insulation, connections, current distribution and replacement interface.

Specify mechanical/polarity/hydraulic cleaning method, cycle trigger, solids handling, drain and incomplete-cleaning alarm.

Use representative water and a defined mass balance, sampling plan, energy basis and scaling/corrosion monitoring.

Freeze envelope, hydraulics, electrodes, power/control, firmware, labels, manuals, approvals and after-sales roles.
Every claimed characteristic needs a definition, method, units, sampling, acceptance and relationship to the delivered product or system.
| Characteristic | RFQ / PO definition | Evidence when ordered |
|---|---|---|
| Water basis | Makeup/circulating analysis, temperature, pH, alkalinity, hardness, conductivity, silica, chloride, sulfate and treatment chemicals | Laboratory report and sampling basis |
| System balance | Circulation, makeup, evaporation, blowdown, drift/leaks, cycles and heat load | Current baseline and target calculation |
| Treatment duty | Side-stream flow, residence time, electrode area, current/density basis and energy | Defined operating/test data |
| Hydraulics | Pressure, loss, connections, pump, bypass, strainer, flow distribution and isolation | Drawing and hydro/leak evidence |
| Deposit handling | Collection surface, release/cleaning method, cycle, solids removal, drain and disposal | Functional test and maintenance procedure |
| Acceptance | Hardness/alkalinity mass removal, scale/corrosion monitoring, water/chemical/energy basis and period | Baseline-versus-test report under agreed conditions |
Final selection depends on project inputs, system interfaces, acceptance evidence and responsibility boundaries.

Define recirculation and side-stream flow, heat load, makeup quality, cycles, blowdown, drift and current treatment program.

Protecting heat-transfer equipment requires deposit/fouling and corrosion monitoring at the actual duty, not only treated-water analysis.

Map multiple users, materials, temperatures, contamination, chemistry controls, microbial program and solids handling.

Assign cell, pump, controller, sensors, software, enclosure, manuals, certification and field-performance boundaries.
Scaling, corrosion, microbiological growth and suspended solids are related but different control problems. The ESR scope must be integrated with blowdown, filtration, chemistry, monitoring and site operating limits; any chemical or water-saving claim needs a complete baseline and post-installation mass balance.
Align operating conditions, included equipment, measurement basis, acceptance method, documents, responsibility, exclusions and commercial terms. A product name or headline number is not a normalized quotation.
HELE can configure an electrochemical scale-removal supply around representative water data, the mass balance, side-stream hydraulics, electrode duty, cleaning route, controls and solids-handling boundary. The approved design basis controls what is built and tested.
01 · Water Review
Review representative analyses, circulation and side-stream flow, cycles, losses, heat load, treatment program and scale-removal target.
Typical order output: Water-duty summary and unresolved assumptions.
02 · Cell & Electrode
Define anode coating duty, cathodic collection area, geometry, gap, current, materials, insulation and replacement interface.
Typical order output: Cell and electrode configuration basis.
03 · Hydraulic Package
Review pump, strainer, valves, bypass, pressure loss, flow distribution, pipe connections, isolation and cleanout access as included.
Typical order output: Hydraulic scope and interface drawing.
04 · Cleaning & Controls
Coordinate interlocks, sensors, current control, cleaning method, cycle trigger, drain, collection and incomplete-cleaning response.
Typical order output: Control sequence and maintenance boundary.
05 · Verification
Verify dimensions, hydraulics, electrical functions, safety functions and agreed operating checks under documented conditions.
Typical order output: Inspection, functional or FAT records listed in the order.
06 · Release
Provide agreed drawings, manuals, component records, packing information, spares and acceptance documents.
Typical order output: Order-specific release and handover package.
The equipment does not replace the entire water-treatment program. Site results still depend on water chemistry, operating cycles, corrosion and microbiological control, hydraulic integration, solids removal and maintenance.
Order rule: only the signed quotation, approved drawings, equipment or material schedule, inspection plan and responsibility matrix define the final HELE supply.
Electrochemical scale removal must be sized against actual water chemistry, hydraulic duty and solids handling. A flow rate or pipe diameter alone is not a reliable design basis.
No. Water chemistry, system mass balance, heat load, cycles, side-stream duty, electrode area/current, cleaning and target acceptance are also required.
Not automatically. Corrosion, microbiological control, suspended solids and asset-specific needs remain. Any reduction must be verified against a defined baseline.
Use inlet/outlet and system mass-balance data, deposit mass/composition, operating time, flow, current/energy, cleaning, water use and uncertainty under stated conditions.
No. Current affects precipitation and energy but can also affect gas, heat, side reactions, local deposits, cleaning and electrode life. Optimize within the qualified system.
Define cleaning mechanism, trigger, incomplete-cleaning detection, drain/solids path, isolation, manual recovery, maintenance and waste handling.
Use verified baseline and post-installation water, blowdown, chemicals, energy, cleaning, downtime, consumables, labor and maintenance over the same operating basis.
A drawing, process note, water analysis, existing-system record or specification is enough to begin. Unknown items can remain open rather than being replaced by generic performance claims.