Custom Forced Feed Evaporator Factories & Service

Suppressed Boiling Dynamics

Standard rising or falling film evaporators suffer catastrophic tube fouling when handling liquors prone to crystallization or precipitation. A forced feed (forced circulation) evaporator prevents nucleate boiling within the heat exchanger tubes by applying static head hydrostatic pressure and controlled pump head.

• Liquid remains strictly subcooled within heat exchanger tubes
• Sensible heating occurs under 1.8 to 3.2 m/s linear tube velocities
• Phase transformation flashes exclusively inside the vapor-liquid separator

Severe Slurry Recirculation

Equipped with low-shear, high-capacity axial flow or mixed-flow circulation pumps, our forced feed evaporators easily circulate crystallizing magmas containing 15% to 40% suspended solids without localized blockages or particle pulverization.

• Maintains uniform crystal size distribution (CSD)
• Hydrodynamic impellers prevent crystal degradation
• Mechanical seal flushed with hot mother liquor or condensate

Viscosity & Boiling Point Elevation (BPE)

Concentrating high-salinity salts (such as CaCl₂, MgCl₂, NaCl, and Na₂SO₄) creates massive boiling point elevations exceeding 15°C to 45°C alongside exponential viscosity surges. We engineer multi-stage thermal cascades tailored to thermodynamic elevations.

• Calculated thermodynamic delta-T drives heat transfer coefficients (U-values)
• Automated reflux wash loops mitigate vapor duct salting
• Integrated entrainment mist eliminators secure <10 ppm TDS distillate

Coastal Salt-Chemical Cluster

Situated in the Binhai Economic & Technological Development Zone (Weifang, Shandong), our factory operates in the heart of China’s largest marine chemical industrial hub, granting immediate access to chemical raw materials, experienced process operators, and world-class testing infrastructure.

In-House PTFE & Metal Synergy

We eliminate subcontractor delays. From heavy carbon steel roll-forming, automated submerged arc welding, and specialized Titanium/Hastelloy fabrication to our proprietary isostatic PTFE lining facility, all critical equipment units are produced under one roof.

Aggressive Lead Time Reductions

Leveraging China's deep domestic supply chain for high-alloy forged flanges, specialized plate steels, duplex alloys, and automated drives, our manufacturing cycle is typically 30% to 50% faster than European or North American counterparts without sacrificing ASME-grade build quality.

Modular Pre-Commissioned Skids

To slash field erection costs, we pre-assemble complete evaporation cascades, recirculation loops, valve manifolds, and instrumentation onto heavy-duty structural skids. Systems undergo hydrostatic and non-destructive testing (NDT) prior to modular containerization.

Pressure Equipment Directives

Pressure vessels, vapor bodies, and tubular exchangers comply fully with ASME Section VIII Div 1 (with U-stamp option) and European Union Pressure Equipment Directive (PED 2014/68/EU Module H/H1), including CE marking.

Hazardous Area Electrics (IECEx / ATEX)

Explosion-proof circulation drives, automated control valves, level transmitters, and localized junction enclosures certified to ATEX and IECEx standards for Zone 1 and Zone 2 operations where flammable or volatile organic fractions accompany industrial brines.

Weld Integrity & NDT Protocols

Every critical seam undergoes rigorous 100% X-ray radiography (RT), liquid penetrant inspection (PT), ultrasonic testing (UT), and positive material identification (PMI) prior to leaving the workshop, documented in full Quality Dossiers.

Centrifugal Vapor Compressors

Instead of condensing secondary steam into cooling water, high-efficiency centrifugal fans or integrally geared turbo-compressors compress flash vapors. Raising saturation temperature by 8°C to 18°C turns latent heat into usable heating medium.

Steam-Free Operation

Under steady-state operation, an MVR-driven forced feed evaporator operates solely on electrical energy, consuming between 25 to 55 kWh per ton of water evaporated, yielding operational cost savings of up to 60-75% against multi-effect setups.

Hybrid TVR & Multi-Effect Cascades

Where high-pressure plant steam is readily accessible, we configure Thermal Vapor Recompression (TVR) ejectors with multi-effect falling-film/forced-feed hybrid loops, ensuring capital expenditure aligns perfectly with local utility rate structures.