Usage Notes and Solutions of 2BE Series Water Ring Pumps in Paper Industry

The 2BE series water ring pump is the main vacuum equipment in the paper industry, suitable for high-humidity working conditions containing paper wool and impurities. The following are streamlined core usage notes and solutions to ensure stable operation of the equipment and extend its service life.

I. Related to Operating Conditions

1. Strictly Control Medium and Intake Air Quality

Note: Paper wool and fibers carried in the intake air are likely to block the pump cavity; high-hardness white water is prone to scaling; suction of corrosive and high-particle media is strictly prohibited.

Solutions: Install a 20~30-mesh stainless steel filter at the intake end and clean it every shift; use clean circulating water, add corrosion and scale inhibitors to white water, and disassemble and clean the pump cavity monthly; select corrosion-resistant flow components for corrosive media.

2. Control Working Water Temperature and Liquid Level

Note: The water temperature should be 5~35℃ (vacuum degree decreases when exceeding 35℃); too high or too low liquid level is easy to damage the pump body; idling for more than 3 minutes is prohibited.

Solutions: Equip a cooling tower to stabilize the water temperature; install an automatic water supply valve and a liquid level gauge to maintain the liquid level up to standard; regularly check the water supply pipeline.

3. Stabilize Vacuum Degree

Note: The vacuum degree should be stably maintained at -0.04~-0.07MPa; frequent fluctuations or overpressure will damage the equipment and affect production.

Solutions: Install a vacuum gauge for real-time monitoring and adjust the valve to control pressure; check the tightness of the pipeline; adopt main and standby pump linkage for large-scale paper machines.

II. Equipment Installation and Operation

1. Standardized Installation

Note: The pipeline needs independent support, and the installation levelness must meet the standard; improper hoisting and coupling installation are likely to cause failures.

Solutions: Level the pump body (levelness 0.1mm/m) and provide independent support for the pipeline; standardize the installation of couplings/pulleys and select appropriate equipment for hoisting.

2. Standardized Start-up and Shutdown

Note: Starting without water injection and air exhaust is easy to cause idling and burn parts; shutting down without closing the suction valve is easy to cause water hammer; protection is required for long-term shutdown.

Solutions: Fill with water and exhaust all air before starting, then open the suction valve after stable operation; close the suction valve first before shutting down the motor; drain all accumulated water and take protective measures during long-term shutdown.

III. Equipment Maintenance

1. Inspect Wear Parts

Note: Impellers, shaft sleeves, seals and other parts are easy to wear, affecting equipment performance.

Solutions: Inspect seals and impellers every shift; check impeller clearance and replenish lubricating oil monthly; replace worn parts in a timely manner.

2. Clean the Gas-Water Separator

Note: Impurities accumulated in the separator are easy to block the pipeline, reduce efficiency and waste water resources.

Solutions: Clean impurities in the separator every week, check tightness, and recycle the separated white water.

3. Environmental Protection

Note: Dust and high humidity in the paper workshop are easy to rust the equipment; the ambient temperature should be controlled at 5~40℃.

Solutions: Install a protective cover and place the equipment in a well-ventilated and dry area; build a rain shelter for outdoor installation; take anti-freezing measures in winter and cooling measures in summer.

IV. Safe Operation

1. Strictly Prohibit Illegal Operation

Note: Touching moving parts during operation, maintenance without power cut, and illegal modification of equipment are likely to cause safety accidents.

Solutions: Operators must receive training before taking up their posts and must not remove the protective cover during operation; cut off the power supply and close the valve before maintenance, and restore the protective device after maintenance.