Patent ID: 9253999
Filing Date: 2016-02-09
CPC Classification: A23L,A23V,F28D,F28F

Claim Text:
1. A UHT system for heat treating temperature-sensitive food products (P), with a pre-heating zone (VZ) which has at least one first heat exchanger of the pre-heating zone ( 100 ; 100 , 100 - 1 , 100 - 2 , . . .) which is/are impinged by the food product to be heated (P) via a product line (L) on the one hand, and by a regeneratively generated first heating medium (M 1 ) via a first circuit line (K 1 ) on the other hand, with a high-heating zone (HZ) joining the first heat exchanger of the pre-heating zone ( 100 ) downstream with respect to the flow direction of the food product (P) and comprising at least one second heat exchanger of the high-heating zone ( 100 +1; 100 +2, 100 +3, . . .) which is/are impinged by the food product (P) via the product line (L) on the one hand, and by a second heating medium (M 2 ) via a second circuit line (K 2 ) on the other hand, with a first line section (L 1 ) which forms a section of the first circuit line (K 1 ) and which supplies the first heating medium (M 1 ) to the first heat exchanger of the pre-heating zone ( 100 ), and with a second line section (L 2 ) which forms a further section of the continuing first circuit line (K 1 ) and which conducts the first heating medium (M 1 ) away from the first heat exchanger of the pre-heating zone ( 100 ), wherein the product-conducting heat exchangers of the pre-heating and the high-heating zones ( 100 , 100 −1, 100 −2, . . . and 100 +1, 100 +2, 100 +3, . . .) are each one designed as tube bundle heat exchangers ( 100 *) each having at least one tube bundle ( 100 . 1 , 100 . 2 , . . ., 100 .i, . . ., 100 .n), and wherein the respective tube bundle ( 100 . 1 ) consists of a group of parallel connected inner tubes ( 300 ), each flown through by product at the inner side, characterised in that the first line section (L a return line (LR) branches off from the second line section (L a second conveying device ( and of the product-conducting heat exchangers of the of the pre-heating and the high-heating zones (