Multi-section plate heat exchanger is designed for pasteurization.
1, Cold milk is pumped to section Ⅱ, and pre-heated to 55℃;
2, The 55℃ milk go through homogenizer, and go back to the plate heat exchanger section Ⅰ, which is heated to 75℃ for pasteurization by hot water or steam;
3, The 75℃ pasteurized milk go back to section Ⅱ to heat up the cold raw milk, and the temperature decrease a little bit.
4, The pasteurized milk is cooled down to 4℃ by cold water in section Ⅲ.
|Section No.||Application||Connection No.|
|Ⅰ||Hot water in||S4|
|Hot water out||A4|
|55℃ Milk in||A1|
|75℃ Milk out||S1|
|Ⅱ||75℃ Milk in||A3|
|24℃ Milk out||B3|
|4℃ Milk in||B2|
|55℃ Milk out||A2|
|Ⅲ||24℃ Milk in||B3|
|4℃ Milk out||T4|
|Cooling water in||B1|
|Cooling water out||T2|
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