FIELD: heat exchangers for cooling or heating liquid products. SUBSTANCE: heat exchanger has elements 1 mounted on frame and connected in flow-through system. Each element 1 has at least one heat-exchange tube 3 for forming insets of product line and tube jacket 3 surrounding heat-exchange tubes 3. Tubes 3 of two adjacent elements 1 are connected by means of elbow of product line. Jacket 2 is connected with one adjacent jacket 2 by means of connecting member 13. Each jacket 2 is connected with modular unit 4 by its ends. Modular unit 4 is mounted for supporting elements 1. joint 5 of jackets 2 is connected with two adjacent units 4. Units 4 are secured by means of connecting profile 17 for motion relative each other. profile 17 is cross-shaped and has constant configuration; it is flexibly engageable with four adjacent units 4. Each joint 5 of jackets 2 has tubular element 12 ands connecting member 13. EFFECT: enhanced stability of heat exchanger and flexible mounting excludes problems of thermal expansion. 4 cl, 14 dwg
