摘要:
A flywheel for a pump, and in particular a flywheel having a number of high density segments for use in a nuclear reactor coolant pump. The flywheel includes an inner member and an outer member. A number of high density segments are provided between the inner and outer members. The high density segments may be formed from a tungsten based alloy. A preselected gap is provided between each of the number of high density segments. The gap accommodates thermal expansion of each of the number of segments and resists the hoop stress effect/keystoning of the segments.
摘要:
Wasserpumpe, insbesondere eine Gartenpumpe oder eine Pumpe eines Hauswasserautomaten, die in einem Gehäuse (GE) eine mittels Elektromotor antreibbare Pumpeinheit aufweist, die Förderflüssigkeit, von einer Saugleitung (SL) zu einer Druckleitung (DL) pumpen kann, wobei das Gehäuse ein mit der Saugleitung verbundenes Motorgehäuse (MG) und ein sich an das Motorgehäuse anschließenden Gehäuse-Fortsatz (GF) mit der Druckleitung umfasst, so dass die Saugleitung unterhalb der Druckleitung angeordnet ist, wobei der Gehäuse-Fortsatz als Abschluss eine Filtereinheit (FT) aufweist und zwischen der Saugleitung und der Druckleitung ein wenigstens teilweise transparentes Fenster (FE) angeordnet ist, so dass vor Betrieb der Pumpe ein Flüssigkeitsstand innerhalb des Gehäuses an der Pumpeinheit von außen ablesbar ist.
摘要:
A method for detecting faults or operational parameters in a pump assembly by use of a handheld communication device is described. The pump assembly includes an electric motor and a pump, wherein the pump assembly or electric motor has at least one rotating shaft The method comprises the steps of: a) measuring a sound signal emanating from the pump assembly by use of a microphone connected to or implemented in the handheld communication device, b) processing the measured sound signal, and c) recognising one or more sound emanating condition including any possible faults by way of the processed sound signal. The app automatically repeats at least steps b) and c) for a plurality of preselected frequency ranges in order to detect different fault states.
摘要:
A liquid pump includes a housing (10), a motor (12) fixed in the housing (10), and an impeller (14) driven by the motor. The motor (12) includes a stator and a rotor rotatable relative to the stator. The impeller (14) is connected to a rotor of the motor (12). The housing (10) includes a guide wall (18) surrounding the stator, and a guide face (28) extending outwardly from an outer surface of the guide wall (18) to guide a liquid flowing to the guide wall (18) to flow in a direction away from the stator, thus ensuring the electrical safety of the liquid pump.
摘要:
A pump apparatus (100, 500) for water management includes an inlet (106, 507), an outlet (116, 509), and a pump housing (102, 502) defining a pressure chamber (104, 504). The pressure chamber (104, 504) is in fluid communication with the inlet (106, 507) and the outlet (116, 509). A user interface (130, 508) associated with the pump apparatus (100, 500) includes a display unit (132, 510) to display an error message associated with one or more operational parameter of the pump apparatus, and input means (134, 512) to receive a user input. The display unit being configured to display at least one error remedy instruction. The input means (134, 512) allow a user to select at least one error remedy instruction.
摘要:
Embodiments of the invention provide a pumping system for at least one aquatic application. The pumping system includes a pump, a motor coupled to the pump, and a controller in communication with the motor. The controller determines an actual power consumption of the motor and compares the actual power consumption to a reference power consumption. The controller also determines that the pump is in an unprimed condition if the actual power consumption is less than the reference power consumption and that the pump is in a primed condition if the actual power consumption is at least equal to the reference power consumption.
摘要:
Some embodiments of the invention provide a pump including a pump chamber, a shaft at least partially positioned in the pump chamber, an impeller coupled to the shaft, and a seal coupled to the shaft. The pump also includes a wet seal chamber with a first fluid. The wet seal chamber can include a bladder that compresses to compensate for volumetric expansion of the first fluid. The wet seal chamber substantially prevents fluid from contacting the seal in order to prolong a life of the seal.