公开(公告)号：US20160195092A1

公开(公告)日：2016-07-07

申请号：US14911925

申请日：2014-06-27

Applicant: ORCAN ENERGY AG

Inventor： Jens-Patrik SPRINGER ,  Andreas GRILL ,  Richard AUMANN ,  Andreas SCHUSTER

IPC: F04D15/00 ,  F04D29/42 ,  F04D1/00

CPC classification number: F04D15/0027 ,  F04D1/00 ,  F04D15/0066 ,  F04D29/4206

Abstract: The present invention relates to a method for controlling a pump, in particular a centrifugal pump, during pumping of a liquid, comprising the following steps: fixing a setpoint value of a flow rate of the pump; measuring an inlet pressure of the liquid upstream of the pump and an outlet pressure of the liquid downstream of the pump; determining a setpoint value of a rotational speed of the pump from a performance map of the pump, wherein the fixed setpoint value of the flow rate and a difference between the outlet pressure and the inlet pressure are incorporated into the performance map as input values; and setting the rotational speed of the pump to the setpoint value of the rotational speed. Furthermore, the invention relates to a corresponding device for controlling a pump.

Abstract translation: 本发明涉及在泵送液体期间控制泵，特别是离心泵的方法，包括以下步骤：固定泵的流量的设定值; 测量泵上游液体的入口压力和泵下游液体的出口压力; 从所述泵的性能图确定所述泵的转速的设定值，其中所述流量的固定设定值和所述出口压力与所述入口压力之间的差值作为输入值被合并到所述性能图中; 并将泵的转速设定为转速的设定值。 此外，本发明涉及一种用于控制泵的相应装置。

公开(公告)号：US20170002693A1

公开(公告)日：2017-01-05

申请号：US15106709

申请日：2014-09-03

Applicant: Orcan Energy AG

Inventor： Jens-Patrick SPRINGER ,  Andreas GRILL

IPC: F01K13/02 ,  F28B11/00 ,  F28B1/06 ,  F01K9/00 ,  F01K11/00

CPC classification number: F01K13/02 ,  F01K9/003 ,  F01K11/00 ,  F01K25/08 ,  F28B1/06 ,  F28B11/00

Abstract: The invention relates to a method for regulating a condenser in a thermal cycle apparatus, in particular in an ORC apparatus, wherein the thermal cycle apparatus comprises a feed pump for conveying liquid working medium with an increase in pressure to an evaporator, the evaporator for evaporating and optionally additionally superheating the working medium with a supply of heat, an expansion machine for generating mechanical energy by expansion of the evaporated working medium, a generator for at least partially converting the mechanical energy into electrical energy, and the condenser for condensing the expanded working medium, and wherein the method comprises the following steps: determining a rotational speed of the generator or of the expansion machine; determining, without the use of a temperature sensor, a temperature of cooling air supplied from the condenser; determining from the determined generator or expansion machine rotational speed and the determined cooling air temperature, a condensation setpoint pressure at which the net electrical power of the thermal cycle apparatus is at a maximum; and controlling or regulating the condensation pressure, with the condensation setpoint pressure as target value, in particular by adjusting a condenser fan rotational speed.

Abstract translation: 本发明涉及一种用于调节热循环装置中的冷凝器的方法，特别是在ORC装置中，其中热循环装置包括用于输送液体工作介质的进料泵，其中蒸发器的压力增加，用于蒸发的蒸发器 并且可选地另外过热加热工作介质，用于通过膨胀蒸发的工作介质产生机械能的膨胀机，用于至少部分地将机械能转换成电能的发电机，以及用于冷凝膨胀的工作的冷凝器 介质，并且其中所述方法包括以下步骤：确定所述发电机或所述膨胀机的转速; 在不使用温度传感器的情况下，确定从冷凝器供应的冷却空气的温度; 从确定的发电机或膨胀机转速和所确定的冷却空气温度确定热循环装置的净电力处于最大值的冷凝设定点压力; 并且以冷凝设定点压力为目标值来控制或调节冷凝压力，特别是通过调节冷凝器风扇转速。

公开(公告)号：US20160251983A1

公开(公告)日：2016-09-01

申请号：US15030862

申请日：2014-10-20

Applicant: ORCAN ENERGY AG

Inventor： Andreas SCHUSTER ,  Asim CELIK ,  Andreas GRILL ,  Jens-Patrick SPRINGER ,  Daniela GEWALD ,  Richard AUMANN

IPC: F01K13/02 ,  F01K13/00 ,  F01K11/00

CPC classification number: F01K13/02 ,  F01K11/00 ,  F01K13/006 ,  F01K25/08

Abstract: The invention relates to a thermodynamic cycle apparatus, comprising: a working medium; an evaporator for evaporating the working medium; an expansion machine for generating mechanical energy while expanding the evaporated working medium; a condenser for condensing the working medium, and a pump for pumping the condensed working medium to the condenser, wherein the geometrical arrangement of the evaporator is selected such that, prior to starting the pump, the condensed working medium can flow from the condenser to the evaporator by force of gravity and the working medium can circulate in a closed circuit via the evaporator and the condenser, whereby in particular a predetermined head height of the liquid working medium can be provided at the pump. The invention additionally relates to a method of starting the thermodynamic cycle apparatus according to the present invention, the method comprising the following steps: applying heat to the evaporator and evaporating the working medium in the evaporator, whereby working medium is caused to flow to the condenser; condensing the working medium in the condenser; starting the pump when a predetermined head height of the working medium at the pump is reached or exceeded.

Abstract translation: 本发明涉及一种热力循环装置，包括：工作介质; 用于蒸发工作介质的蒸发器; 用于在扩大蒸发的工作介质的同时产生机械能的膨胀机; 用于冷凝工作介质的冷凝器和用于将冷凝的工作介质泵送到冷凝器的泵，其中选择蒸发器的几何布置，使得在启动泵之前，冷凝的工作介质可以从冷凝器流到 蒸发器通过重力和工作介质可以通过蒸发器和冷凝器在闭合回路中循环，由此可以在泵处提供液体工作介质的预定头部高度。 本发明还涉及一种启动根据本发明的热力循环装置的方法，该方法包括以下步骤：向蒸发器施加热量并蒸发蒸发器中的工作介质，从而使工作介质流到冷凝器 ; 冷凝器中的工作介质冷凝; 当达到或超过泵的工作介质的预定头部高度时启动泵。