Patent DE-102007023766-A1 (DE)
Title: Partially filling an arrangement having storage elements of heat accumulator with salt melt, comprises heating storage medium at its melting point and then sucking over pressure difference between interior of accumulator and arrangement
Inventor: KOHLSTRUNG PETER
IPC: C09K5/06
Filed: 2007-05-22
Abstract: The method for partially filling an arrangement having storage elements (17) of a heat accumulator with a salt melt (10), comprises heating a storage medium at its melting point and then sucking over a pressure difference between the interior of the accumulator and the interior of the arrangement in each storage element, seizing the temperature of the storage medium over a first and a second temperature sensor (9), and adjusting a unit of a controller or a regulator in dependence of the output data of the temperature sensors over first and second heating devices. The method for partially filling an arrangement having storage elements (17) of a heat accumulator with a salt melt (10), comprises heating a storage medium at its melting point and then sucking over a pressure difference between the interior of the accumulator and the interior of the arrangement in each storage element, seizing the temperature of the storage medium over a first and a second temperature sensor (9), and adjusting a unit of a controller or a regulator in dependence of the output data of the temperature sensors over first and second heating devices. The heat accumulator has the liquid storage medium to store heat and is used in a cooking device. The temperature of the storage medium is kept at 580[deg] C during the filling process. The liquid storage medium is led over a first fluid line (11) against the force of gravity in the arrangement and is led over a second fluid line (13) against the force of gravity from the arrangement to terminate the filling process by solidifying the liquid storage medium. The storage medium is solidified by cooling through inter-connection of the controller or regulator. A negative pressure is occasionally set on to the arrangement over a third fluid line for the adjustment of the pressure difference by inter-connecting the controller or regulator. The third fluid line is formed with the second fluid line. The storage elements are filled with the storage medium one after the other. The first storage element is connected with the first fluid line and the last storage element is connected with the second fluid line. Each of the storage elements is connected between the first and the last storage element over an over-flow fluid line with two adjacent storage elements. An open end in the storage element opens the end of the first fluid line, second fluid line and/or over-flow fluid line, and determines the filling height in the storage element with the storage medium. The filling height is equally selected in each storage element. An inner diameter of the first fluid line, the second fluid line and/or the over-flow fluid line is selected in dependent upon the filling height of the storage element. The first and/or the second fluid line are partially interrupted, separated or destroyed above the solidified storage medium after ending of the filling process. The interior of the accumulator is opened for atmosphere. The pressure difference (delta p) between the interior of the accumulator and the interior arrangement is larger than the hydrostatic pressure. All the storage elements are equal height and the melt consists of the liquid storage medium. An independent claim is included for a device for partially filling an arrangement.