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LCD(BB3) horizontal split multi-stage pump

>BB3(LCD):

This series pumps are horizontal, multi-stage centrifugal pumps designed by our company according to the API610 11th edition standard. These pumps feature a single casing, axial split, horizontally centered support, and a symmetrical impeller arrangement. Advanced hydraulic design tools such as PUMPCAD hydraulic design software and CFD three-dimensional fluid simulation analysis systems were used to refine the design.

>SERVICES:

It is mainly used to transport clean or liquid containing solid particles, such as oil mining, petrochemical industry, chemical industry, coal chemical industry, pipeline transportation, seawater desalination, power plant boiler water supply, etc. It can also be used in high-pressure hydraulic energy recovery turbines in the chemical industry, chemical fertilizers , lean liquid pumps and rich liquid pumps in ammonia synthesis plants, etc.

>Design Parameter

10~1500 m³/h         ~1600 m         25 Mpa                                  -60-~+200℃

Flow(Q)                  Head(H)        Working pressure(P)            Operating temperature(T)

Structure Feature

>Axial split,single casing, horizontal, multi-stage, upper and lower symmetrical volute body structure, close to the centerline support,centrifugal pump.
>Pump inlet and outlet flanges are arranged on the pump casing, allowing
for easy testing and maintenance without moving the inlet and outlet piping.

>The impellers are symmetrically arranged back-to-back, resulting in low residual axial forces. Axial forces are balanced by adjusting the dimensions of parts such as the throttle bushing.
>The volute body is designed with upper and lower symmetrical arrangements, automatically balancing radial forces.
>There are no complex balancing mechanisms. Each shaft sleeve has spiral grooves in its inner bore, and the sleeve’s axial dimensions are relatively short, making it suitable for conveying media containing solid particles.
>The first-stage impeller can be designed as a single-suction or double-suction structure based on user requirements.
>Impeller blade exits are designed relative to the spiral line to avoid vibration caused by impeller exit overlap.
>The design allows for the addition of large flow intermediate tapping points, with the flexibility to choose suitable tapping positions and impeller hydraulics based on flow and pressure variations.
>The  sealing cavity dimensions are designed in accordance with the requirements of API682 3rd edition and can conjunction with various sealing and flushing solutions.
>Standard series bearing components are used, and depending on specific operating conditions, self-lubricating sliding bearing structures and forced lubrication sliding bearing structures can be employed. The connection between the bearings and the pump casing can be either full flange or semi-flange. The self-lubricating sliding bearing structure can be designed for air-cooled, wind-cooled, or water-cooled configurations based on operating conditions.

LCD SERIES SPECTRUM

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