FL 03.2 – Centrifugal Pumps Characteristic

The equipment is designed to operate on hydraulic bench. The installation is mounted on a frame constructed of aluminum, with a system of pipes and valves that allow it to be coupled hydraulic pump and bank equipment in series or in parallel.

Description

The equipment has a frequency converter for controlling the speed of rotation of the pump. Also has two wattmeter for obtaining the power consumed by both pumps.

Through the study of the characteristics of centrifugal pumps is demonstrated the operation and functioning and factors affecting their efficiency.

Learning Objectives

⦁ Bringing on stream of a bomb, analysis and study of the aspects to consider.

⦁ Priming the pump.

⦁ Checking the sense of rotation.

⦁ Overcurrent produced in the motor.

⦁ Study and obtaining the characteristic curves of a pump.

⦁ Height – flow (H – F).
⦁ Power – Flow (P-F).
⦁ Efficiency – Flow (h-F).

⦁ Study of the cavitation, and obtaining the NPSH curve required-flow.

⦁ Study of the different forms of regulation of turbo pump.

⦁ Variation of the rotation speed. Getting new characteristic curves.

⦁ Modification of the operation point by variation of the pumping station.

⦁ Maneuvered in an the impulsion valve.

⦁ Analysis of identical pumps that operate in identical group.

⦁ Operating characteristic curves in series.

⦁ Height-discharge (H-F).
⦁ Power-flow (P-F).
⦁ Efficiency-caudal (h-F).

⦁ Operating characteristic curves in parallel.

⦁ Height – flow (H-F).
⦁ Power-flow (P-F).
⦁ Efficiency – flow (h-F).

⦁ Analysis of different pumps operate in group.

⦁ Operating characteristic curves in series.

⦁ Height – flow (H-F).
⦁ Power-flow (P-F).
⦁ Efficiency-caudal (h-F).

⦁ Operating characteristic curves in parallel.

⦁ Height – flow (H-F).
⦁ Power-flow (P-F).
⦁ Efficiency-caudal (h-F).

Technical Data

Inside diameters:

. Suction pipe:

. Øin   = 27,2 mm.
. Øext = 27,2 mm.

. Impulsion pipe.

. Øin   = 34 mm.
. Øext = 40 mm.

Manometros:

⦁  Bourdon type with glycerin of  -10,33+35 m.w.c.(x3).

⦁  Bourdon type with glycerin of  -10,33+70 m.w.c.

Characteristics of the pump:

.  Pump head maximum 23 m.w.c.
.  Flow 20 / 160 l / min.
.  W 21 / 10 m.w.c.
.  W max. 23 m.w.c.
.  W min. 10 m.w.c.
.  Power consumed 750 W (1 HP).
.  Rotational speed 2.900 r.p.m.

Indicadores de potencia:

⦁ Wattmeters of scale 0-1200 W.

Requirements


⦁ Hydraulic Bench FL 01.4

⦁ Electrical Plug-in: 230V/50Hz.

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