Applications of 2BV Liquid Ring Vacuum Pump Closed-Loop Systems in Industrial Production

The 2BV liquid ring vacuum pump system is a widely used vacuum solution commonly applied in industries such as chemical processing, pharmaceutical manufacturing, and food production.

1.System Overview

The 2BV liquid ring vacuum pump closed-loop system uses liquid (typically water) as the working medium to create a vacuum through rotational liquid ring formation. The closed-loop design enables working fluid recycling, making it particularly suitable for industrial applications requiring stable vacuum levels while meeting high environmental and energy efficiency standards.

2. Core Advantages

Energy Efficiency & Eco-Friendliness: Closed-loop operation minimizes water waste and prevents wastewater discharge.

Stable & Reliable: The liquid ring sealing structure withstands humid, dusty, or mildly corrosive gases.

Easy Maintenance: Non-mechanical friction design extends the lifespan of critical components.

Strong Adaptability: Adjustable working fluid temperature or antifreeze additives allow operation in diverse environments.

3. Typical Industry Applications

① Chemical & Pharmaceutical

Vacuum Distillation/Drying: Solvent recovery, low-temperature drying of APIs.

Reactor Evacuation: Ensures stable conditions for oxidation, hydrogenation, etc.

Corrosive Gas Handling: Chlorine, hydrogen sulfide (requires corrosion-resistant materials).

② Food Processing

Vacuum Packaging: Extends shelf life of meat, cheese, etc.

Degassing: Removes bubbles from juices, sauces to prevent spoilage.

Freeze Drying: Preserves cellular structure and nutrients in food materials.

③ Environmental & Energy

Biogas Purification: Extracts biogas (enhancing CH₄ concentration) from anaerobic digesters.

Vacuum Filtration: Critical for sludge dewatering and industrial wastewater treatment.

④ Power & Paper

Steam Turbine Condenser Evacuation: Improves thermal efficiency.

Pulp Dewatering: Accelerates forming and reduces drying energy consumption.

⑤ Electronics Manufacturing

Semiconductor Processes: Provides clean vacuum environments for wafer coating/etching.

LED Encapsulation: Eliminates bubbles to enhance packaging quality.

4. Solutions for Special Conditions

High-Temperature Gases: Pre-cooling with heat exchangers.

Flammable/Explosive Gases: Nitrogen sealing or explosion-proof motor configurations.

Particulate-Laden Gases: Protects pump with cyclone separators.

5. Selection Guidelines

Pump models and sealing fluid formulations should be selected based on airflow capacity, ultimate vacuum level, and medium characteristics, such as:

Pharmaceuticals: Recommended sanitary stainless steel construction.

Corrosive Chemical Environments: Requires PTFE lining or titanium alloy pumps.