Thermal stratified tank

Abstract

A thermal stratified tank has at east one first reservoir serving as a storage chamber for receiving a heat transfer medium, and at least one second reservoir, laterally adjoining the first reservoir via a partition ( 14 ), serving as an inflow and stratification chamber ( 15, 16 ). At least one through-opening ( 21 ) is provided in the partition between the first and second reservoirs. A guiding channel ( 27 ) leads into the second reservoir for supplying heat transfer medium. The guiding channel has an outlet which is constructed and/or arranged in such a way that during operation the inflow into the stratification chamber ( 15, 16 ) is substantially horizontal. A deflector wall ( 19 ), from which the inflowing heat transfer medium rebounds, is arranged at a spacing from the outlet and substantially in the inflow direction of the heat transfer medium.

1 . A thermal stratified tank, comprising:
 at least one first reservoir serving as a storage chamber for receiving a heat transfer medium;   at least one second reservoir, laterally adjoining the first reservoir via a partition, serving as an inflow and stratification chamber;   at least one through-opening; provided in the partition; between the first and second reservoirs;   a guiding channel leading into the second reservoir for supplying a heat transfer medium, the guiding channel and an associated outlet constructed in such a way that during operation the heat transfer medium flows into the second reservoir substantially horizontally; and   at least one deflector wall arranged at a spacing from the outlet in an inflow direction of the heat transfer medium.   
     
     
         2 . The thermal stratified tank according to  claim 1 , wherein the at least one through-opening is located closer to the associated outlet of the guiding channel than the deflector wall and, viewed in the direction counter to the inflow, is downstream of the associated outlet. 
     
     
         3 . The thermal stratified tank according to  claim 1  wherein the spacing between the associated outlet and the deflector wall is such that a speed of inflowing heat transfer medium before reaching the at least one through-openings attains less than one of 0.03 m/s or 0.02 m/s. 
     
     
         4 . The thermal stratified tank according to  claim 1 , wherein the first reservoir is a first cylindrical reservoir with a first diameter and the second reservoir is a second cylindrical reservoir with a second, larger diameter, the first reservoir arranged in the second reservoir, to form an annular space between the first and second reservoirs. 
     
     
         5 . The thermal stratified tank according to  claim 4 , wherein the at least one deflector wall comprises a plurality of deflector walls that divide the annular space into at least one of a plurality of stratification chambers and a plurality of stratification recesses. 
     
     
         6 . The thermal stratified tank according to  claim 1  or  5 , wherein the at least one deflector wall is provided on an outside of the first reservoir, and can be inserted in the second reservoir as a unit. 
     
     
         7 . The thermal stratified tank according to  claim 1  wherein a ratio of a cross-sectional area of the guiding channel to a cross-sectional area of the a feeding pipe is greater than at least one of 1.5:1, 2:1 and 3:1. 
     
     
         8 . The thermal stratified tank according to  claim 1  wherein a ratio of a cross-sectional area of the guiding channel to a total cross-sectional area of the through-openings is greater than at least one of 3:1, 5:1 and 8:1. 
     
     
         9 . The thermal stratified tank according to  claim 1  wherein the guiding channel is constructed as a rising pipe and having a length of at least 20 cm and the outlet of the guiding channel constructed as an infeed curve. 
     
     
         10 . The thermal stratified tank according to  claim 1  wherein a part of the guiding channel extends outwards through a wall of the second reservoir and further comprising a lateral connecting opening on the part of the guiding channel which has a smaller cross-section than the guiding channel. 
     
     
         11 . The thermal stratified tank according to  claim 1 , further comprising a connecting branch which ends in the guiding channel at a substantially 90 degree angle with a maximum deviation of approximately ±30 degrees. 
     
     
         12 . The thermal stratified tank according to  claim 1 , further comprising a plurality of stratification chambers, a plurality of guiding channels, the plurality of guiding channels ending in the plurality of stratification chambers and having at least one of different lengths and different diameters. 
     
     
         13 . The thermal stratified tank according to  claim 1 , further comprising a plurality of through-openings arranged vertically one above the other. 
     
     
         14 . The thermal stratified tank according to  claim 1 , further comprising at least one heat exchanger fitted in at least one of the first and second reservoir. 
     
     
         15 . The thermal stratified tank according to  claim 14 , wherein the at least one heat exchanger has a first and a second heat exchanger section, the first heat exchanger section in the first reservoir and the second heat exchanger section in the second reservoir. 
     
     
         16 . The thermal stratified tank according to  claim 1 , wherein
 the storage chamber is divided into at least two regions located one above the other that are heat insulated from one another and   the inflow and stratification chamber is divided into at least two regions located one above the other that are heat insulated from one another.