SUCTION GAS HEAT EXCHANGER

摘要

An evaporator unit for exchanging heat between a refrigerant (C) and a low temperature heat source (B), comprises: a heat exchanger pack (610; 710) including a number of identical heat exchanger plates arranged such that spaces are formed between pairs of said plates, wherein neighboring spaces are separated such that a heat exchange can take place between the refrigerant (C) and the low temperature heat source (B) flowing in such neighboring spaces, and a suction gas heat exchanger (SGHX) exchanging heat between refrigerant (C) about to enter a throttling (700; 660, 663, 675) and refrigerant (C) exiting the heat exchanger pack (610; 710), wherein the suction gas heat exchanger (SGHX) comprises plates (620, 630) provided with ridges and grooves or nipples and dimples, wherein the heat exchanger pack (610, 710) and the suction gas heat exchanger (SGHX) are combined into a single unit.