VALVE AND PUMP ARRANGEMENT WITH VALVE

VALVE AND PUMP ARRANGEMENT WITH VALVE

The invention relates to a pump arrangement, in particular a centrifugal pump, in particular a main coolant pump for power stations, comprising a pump housing (2), which defines an interior (3) with an inlet opening (4) for aspirating a conveying medium and with an outlet opening (5) for expelling t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: NIEDERMEIER, Peter
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACTUATING-FLOATS
BLASTING
COCKS
CONTROLLING
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
PHYSICS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Beschreibung
Zusammenfassung:The invention relates to a pump arrangement, in particular a centrifugal pump, in particular a main coolant pump for power stations, comprising a pump housing (2), which defines an interior (3) with an inlet opening (4) for aspirating a conveying medium and with an outlet opening (5) for expelling the conveying medium and which also defines a chamber (7) that is connected to the interior (3), a seal water system (22), which has a first conduit system (29) in order to supply seal water into the chamber (7) defined by the pump housing (2), a second conduit system (32) for evacuating a controlled leakage flow from the chamber (7) defined by the pump housing (2), and a protective valve (35), which is arranged in the second conduit system (32) in order to block the leakage flow that is evacuated from the chamber (7). The invention further relates to a protective valve (35) and to the use of a protective valve (35) in a pump arrangement (1).