2BW4 Liquid Ring Vacuum Pump Package – Condenser Exhauster Systems

The 2BW4 Liquid Ring Vacuum Pump Package is a complete vacuum system specially designed for condenser exhauster applications in thermal power plants. Developed for reliable condenser vacuum extraction, this package combines an improved liquid ring vacuum pump with auxiliary equipment, automatic controls, and protection devices to provide stable and efficient operation under power-station working conditions.

The compact package is equipped with a spraying device, anti-cavitation valve, heat exchanger, pressure switches, differential pressure switch, and pneumatic or electric butterfly valve. Its integrated instrumentation and control system supports both automatic and manual operation, with provisions for connection to a DCS control system.

Product Introduction

The 2BW4 series water ring vacuum pump package is a liquid ring vacuum pump unit developed for applications requiring efficient air extraction and reliable condenser vacuum maintenance. It adopts an improved 2BE1 liquid ring vacuum pump, providing stable performance and dependable operation.

The package is configured specifically for power-generation applications and can be customized according to the operating conditions of individual power stations.

Key Features

Closed-Circulation Working Fluid System

The package is equipped with a heat exchanger to provide closed circulation of the working fluid. This design helps improve operating efficiency and supports stable working conditions for the liquid ring vacuum pump.

Anti-Cavitation Protection

An anti-cavitation valve is incorporated into the system to help prevent cavitation during operation. This protects the vacuum pump and contributes to reliable long-term performance.

Gas Backflow Protection

A differential pressure switch combined with a pneumatic or electric butterfly valve helps prevent gas from flowing back into the vacuum system. This provides additional protection during starting, stopping, and changing operating conditions.

Automatic Pressure Control

A pressure switch is provided to automatically control the startup or withdrawal of the vacuum unit according to the required operating conditions.

Automatic and Manual Operation

The package includes instrumentation and an electrical control box, allowing operators to choose automatic or manual operation. Terminals can be reserved for connection to the plant's DCS system, facilitating centralized monitoring and control.

Improved Liquid Ring Vacuum Pump

The 2BW4 package uses an improved 2BE1 liquid ring vacuum pump designed to provide more stable performance and reliable operation. The pump incorporates a fully process-controlled integral casting impeller, contributing to robust construction and consistent operation.

The package also uses a flat pump configuration that is better suited to the operating requirements of power-station applications.

Configuration Options

The 2BW4 system provides different configuration options to accommodate varying operating conditions:

• Stainless steel impeller liquid ring vacuum pump

• Common-material liquid ring vacuum pump with atmospheric ejector

These options allow the package to be selected according to process requirements, material compatibility, and operating conditions.

Technical Parameters