METHOD FOR CONDUCTING ON-GOING ANALYSIS OF THE CURRENT TECHNICAL CONDITION OF A SUBMERSIBLE PUMP SYSTEM AND A PROBE USED FOR EMPLOYING THIS METHOD

摘要

The method concerns a pump system comprising a submersible pump (1) with a known lift as a function of capacity determined on a test stand, with the submersible pump immersed in a liquid contained in a deep well (2), and a pressure pipeline (5) with fittings, which discharges the pumped liquid, and is connected to the pressure port (4) of the same submersible pump (1). The method is characterised in that for a given capacity of the pump system measured at its downstream end, differential pressure is determined between the liquid pressure in the pipeline (5) near the pump (1) pressure port (4) and the hydrostatic pressure of the same liquid outside of the pump (1) at the pump pressure port (4). The differential pressure determined in this way is then compared against the lift (H), which results from the known lift as a function of capacity (Q), for the capacity value being the given capacity of the pump system for which the differential pressure has been determined.