Shock Freezer Evaporator For Freezing Tunnel

A shock freezer evaporator is a specialized component used in freezing tunnels to rapidly reduce the temperature of food products, ensuring quick freezing while maintaining quality. Here’s an overview of its design, operation, applications, and benefits:

Design and Structure

Components:

Evaporator Coils: Made from materials like copper or aluminum, these coils are designed to maximize heat transfer.

Fans: High-velocity fans circulate cold air over the coils, enhancing the cooling effect.

Control System: Monitors and regulates temperature and airflow to maintain optimal freezing conditions.

Configuration:

Shock freezer evaporators can be configured in various ways, including direct expansion and flooded designs, depending on the cooling requirements and space constraints.

Operation

Rapid Cooling Process:

Warm air from the products enters the evaporator, where it is cooled by the refrigerant flowing through the coils.

The evaporator absorbs heat from the air, causing the refrigerant to evaporate and cool the air significantly.

High Airflow:

The fans create a strong airflow over the evaporator coils, ensuring rapid heat exchange and uniform cooling across all products.

Defrost Mechanism:

Many shock freezers are equipped with automatic defrost cycles to prevent frost buildup on the coils, maintaining efficiency.

Applications

Food Industry:

Ideal for quickly freezing seafood, meats, fruits, and vegetables to preserve texture and nutritional value.

Bakery Products:

Used for freezing doughs, pastries, and other baked goods to maintain freshness.

Pharmaceuticals:

Employed in the freezing of certain sensitive pharmaceutical products.