FIELD: oil producing industry. SUBSTANCE: pumped products are kept in contact with external surface of heat exchanger with increased area of contact with heat exchange surface due to sheets transversely welded to members of heat exchanger from pipes located square to flow of pumped products to provide for turbulent character of flow of pumped products. Temperature of pumped products is controlled to prevent its overflow. Control unit is connected with source of heat carrier heating. Steam generator is located below heat exchanger. EFFECT: higher efficiency of heating of pumped products. 5 cl, 3 dwg, 1 ex
