TV30-HPVE-EC-1STSS – Heat Pump Vacuum Evaporator, 30,000 L/day

Technical Specifications

Overview of the 30,000 L/day Heat Pump Vacuum Evaporator (30 m3/day)

The Heat Pump Vacuum Evaporator (HPVE) is an advanced concentration and evaporation solution designed for small and very small capacity systems.
It operates entirely on electricity, requiring no steam, fuel, or external cooling water.

The TV30-HPVE-EC-1STSS model has a processing capacity of 30,000 liters per day, making it ideal for pilot plants, laboratories, or low-flow production lines that demand high condensate quality and energy efficiency.

Each system is custom-engineered by TVTS according to the specific needs of each factory and can be integrated or upgraded with a crystallization module, enabling complete water removal and solid or crystal salt recovery.

1. Working Principle of the Heat Pump Vacuum Evaporator

The HPVE system operates on the principle of refrigerant compression and closed-loop heat recovery, similar to a conventional heat pump or refrigeration cycle, but adapted for industrial evaporation.

• During evaporation, wastewater is concentrated in a vacuum chamber at low temperatures (30–40°C).

• The refrigerant gas is compressed by a mechanical compressor, becoming superheated vapor that transfers heat to the feed solution.

• The refrigerant then passes through an expansion valve, becomes subcooled, and condenses vaporized water into high-purity condensate.

• This closed thermal loop continuously recycles energy without requiring additional steam or cooling water.

With a Coefficient of Performance (COP) of 3.0–4.5, the HPVE significantly reduces electrical energy consumption per cubic meter of evaporated water.

2. Key Advantages of the Heat Pump Vacuum Evaporator

🔹 Low-Temperature Evaporation – High Condensate Quality

Operating between 30–40°C, the system minimizes thermal degradation and produces ultra-pure condensate suitable for reuse in industrial processes.

🔹 Outstanding Energy Efficiency

The HPVE consumes only 140–180 W/L of condensate, far less than conventional systems:

• Direct heating: 540–600 kWh/m³

• Steam-based evaporation: 400–1,100 kg steam/m³

• HPVE: only 130–155 kWh/m³

🔹 Compact, Fully Automated Design

The system is compact, fully automated, and safe to operate, capable of batch or continuous operation.
It uses standard industrial refrigeration compressors, ensuring easy maintenance and replacement.

🔹 No External Cooling or Heating Required

The internal refrigerant circuit simultaneously provides heating and cooling, maintaining stable operation without a chiller or cooling tower.

🔹 Ideal for Small and Specialized Applications

This model is the most efficient solution for applications under 100 m³/day, such as electroplating plants, electronics workshops, or pilot-scale R&D facilities.

🔹 Optional Crystallization Integration

The HPVE can be upgraded with a crystallization function, allowing solid recovery of salts, metals, or compounds, supporting Zero Liquid Discharge (ZLD) processes.

3. Limitations of the HPVE System

• ⚙️ Limited capacity: Best suited for small to medium applications.

• ⚙️ Longer evaporation cycle: Due to low working temperatures and vacuum operation.

• ⚙️ Not suitable for solutions with large solid particles or heavy fouling potential.

4. Applications of the Heat Pump Vacuum Evaporator

✅ Industrial Wastewater Treatment

• Small-scale Zero Liquid Discharge (ZLD) systems.

• Concentration of electroplating, oily, or saline wastewater from steel, food, or chemical plants.

• Leachate concentration from landfill facilities.

• Treatment of high-COD wastewater from the food or pharmaceutical sectors.

• Concentration of acidic, alkaline, or electronic washing wastewater.

✅ Food and Pharmaceutical Industries

Concentration of heat-sensitive products such as enzymes, extracts, and bioactive solutions while preserving product integrity.

✅ Mining and Energy Sectors

Used for dewatering mineral-rich or saline solutions, reducing waste volume, and improving material recovery efficiency.