Abstract:
An integrated unit for use in a pump station. The integrated unit comprises a connector for connection to a power supply, a motor arranged to provide mechanical drive to an output shaft for coupling to a pumping unit associated with the pump station, a motor controller arranged to supply the motor with power from the connector to thereby control the motor, and an interface for a pump station system controller arranged to interface with the motor controller to match the mechanical drive supplied to the output shaft by the motor to demand. The integrated unit station comprises a housing with an exterior wall portion that is removable, and to which comprises a cooling system for an electronic component. An automatically engaging coupling is arranged to automatically disconnect the electrical connection to the electronic component on removal of the exterior wall portion.
Abstract:
Verfahren zum Betrieb einer Pumpe (1) zur Förderung einer Flüssigkeit aufweisend zumindest ein Pumpengehäuse (2) mit mindestens einem Einlass (3) und mindestens einem Auslass (4), wobei an dem Pumpengehäuse (2) ein Exzenter (5) angeordnet ist, der um eine Achse (6) relativ zu dem Pumpengehäuse (2) drehbar ist, wobei zwischen dem Pumpengehäuse (2) und dem Exzenter (5) ein verformbares Element (7) angeordnet ist und wobei mit dem verformbaren Element (7) und dem Pumpengehäuses (2) ein Förderkanal (8) von dem mindestens einen Einlass (3) zu dem mindestens einen Auslass (4) ausgebildet ist und wobei das verformbare Element (7) von dem Exzenter (5) abschnittsweise derart gegen das Pumpengehäuse (2) gedrückt wird, dass mindestens eine verschiebbare Abdichtung (9) des Förderkanal (8) und zumindest ein geschlossenes Pumpenvolumen (10) in dem Förderkanal (8) ausgebildet sind, welche zur Förderung der Flüssigkeit durch eine Drehbewegung des Exzenters (5) entlang des Förderkanals (8) von dem Einlass (3) zu dem Auslass (4) verschiebbar sind. In Schritt a) des Verfahrens wird eine Flüssigkeitsmenge (14) festgelegt, die mit der Pumpe (1) gefördert werden soll. In Schritt b) wird eine Temperatur (12) des verformbaren Elementes (7) bestimmt. In Schritt c) wird mindestens ein Parameter (13) unter Berücksichtigung der Temperatur (12) aus Schritt b) bestimmt, wobei der Parameter (13) eine Abhängigkeit zwischen der Bewegung des Exzenters (5) und der Förderleistung der Pumpe (1) wiedergibt. In Schritt d) wird die in Schritt a) festgelegte Flüssigkeitsmenge (14) gefördert, wobei eine Betriebsweise der Pumpe (1) unter Berücksichtigung des Parameters (13) aus Schritt c) angepasst wird.
Abstract:
A method comprising determining a first temperature of an oil inside a compressor (1); determining a second temperature at a moveable part (5) of the compressor (1), wherein the second temperature at the moveable part (5) is determined at a stationary part (4) of the compressor (1) being in contact with the moveable part (5); and deriving whether the compressor (1) operates in a safe mode or in an unsafe mode based on an analysis of the determined first temperature and the determined second temperature at the moveable part (5).
Abstract:
An integrated unit for use in a pump station. The integrated unit comprises a connector for connection to a power supply, a motor arranged to provide mechanical drive to an output shaft for coupling to a pumping unit associated with the pump station, a motor controller arranged to supply the motor with power from the connector to thereby control the motor, and an interface for a pump station system controller arranged to interface with the motor controller to match the mechanical drive supplied to the output shaft by the motor to demand. The integrated unit station comprises a housing with an exterior wall portion that is removable, and to which comprises a cooling system for an electronic component. An automatically engaging coupling is arranged to automatically disconnect the electrical connection to the electronic component on removal of the exterior wall portion.
Abstract:
The invention relates to a method for controlling a compressor of a refrigeration system, said compressor having a motor, wherein the temperature of the cooling point is controlled by means of switch-on and switch-off operation of the motor if the temperature in the compressor exceeds an upper temperature threshold and the temperature of the cooling point is controlled by means of continuously switched-on operation of the motor as soon as the motor has cooled down to a lower temperature threshold, wherein the control system converts a manipulated variable corresponding to the cooling demand of the cooling point into a switching signal for a valve, which switching signal causes clocked opening and closing of the valve, or a frequency converter controls the refrigerant flow through the compressor by controlling the voltage and the frequency of the motor, in that the frequency converter converts a manipulated variable corresponding to the cooling demand of a cooling point into a voltage and a frequency for the motor.
Abstract:
An integrated unit for use in a pump station. The integrated unit comprises a connector for connection to a power supply, a motor arranged to provide mechanical drive to an output shaft for coupling to a pumping unit associated with the pump station, a motor controller arranged to supply the motor with power from the connector to thereby control the motor, and an interface for a pump station system controller arranged to interface with the motor controller to match the mechanical drive supplied to the output shaft by the motor to demand. The integrated unit station comprises a housing with an exterior wall portion that is removable, and to which comprises a cooling system for an electronic component. An automatically engaging coupling is arranged to automatically disconnect the electrical connection to the electronic component on removal of the exterior wall portion.
Abstract:
There is described a mobile breathing-air compressor unit arranged for use in an explosive environment and including an air compression unit, an air inlet provided with a gas detector which is arranged to stop the air compression unit, means of keeping the operating temperature of the air compression unit below a limit value, a) by the air compression unit being provided with several compressors which are arranged to be subjected to a maximum load which lies considerably below the maximum capacity of the compressor, or b) by the air compression unit is provided with means arranged to carry an energy-carrying fluid across a heat -exchanging surface on each of the compressors, or c) by each of the compressors is provided with a temperature controller effecting operation at intervals of each of the compressors, or a combination thereof; and the breathing-air compressor unit being arranged in a transport container. There is also described a method of producing compressed breathing air by the use of a mobile breathing-air compressor unit.
Abstract:
An integrated unit for use in a pump station. The integrated unit comprises a connector for connection to a power supply, a motor arranged to provide mechanical drive to an output shaft for coupling to a pumping unit associated with the pump station, a motor controller arranged to supply the motor with power from the connector to thereby control the motor, and an interface for a pump station system controller arranged to interface with the motor controller to match the mechanical drive supplied to the output shaft by the motor to demand. The integrated unit station comprises a housing with an exterior wall portion that is removable, and to which comprises a cooling system for an electronic component. An automatically engaging coupling is arranged to automatically disconnect the electrical connection to the electronic component on removal of the exterior wall portion.