Cooling Section for Beverage Pasteurization Tunnels

Product Specifications

Technical details and manufacturing context for Cooling Section

Definition

The Cooling Section is a critical component within the Integrated Beverage Pasteurization and Cooling Tunnel System that follows the pasteurization zone. Its primary function is to rapidly and uniformly lower the temperature of pasteurized beverages to a safe filling temperature, typically from pasteurization temperatures (e.g., 60-95°C) down to ambient or slightly above ambient levels (e.g., 20-40°C). This process halts thermal treatment, stabilizes the product, and prepares it for packaging while maintaining product quality and safety. The cooling process typically employs heat exchange mechanisms. Beverage containers (bottles, cans, etc.) move through the section on a conveyor. They are sprayed with or immersed in a cooling medium—usually chilled water or a water-glycol mixture. Heat transfers from the hot beverage through the container walls to the cooler medium. The system often uses counter-current flow for efficiency, where the coldest coolant meets the containers just before exit. Temperature is controlled via heat exchangers, chillers, and recirculation systems to ensure precise and consistent cooling rates. The section is constructed from stainless steel (AISI 304/316) for product contact surfaces, with food-grade plastics and insulation materials. Key parameters include cooling capacity (5000–20000 kg/h), cooling temperature range (2–25°C), temperature uniformity (±1°C), cooling water flow rate (20–80 m³/h), inlet temperature (5–15°C), pressure (0.2–0.4 MPa), conveyor speed (0.5–2.0 m/min), electrical supply (380 V AC ±10%, IEC 60038), installed power (15–45 kW), material (SS 304, ASTM A240; 316L optional), insulation thickness (50–100 mm), overall dimensions (6000–12000×1500–2500×2000–3000 mm), weight (3000–8000 kg), and ingress protection rating (IP54–IP65, IEC 60529). These values are reference ranges and must be confirmed for the specific model and application. Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The cooling section operates on the principle of heat exchange. Beverage containers, such as bottles or cans, are conveyed through the section while being sprayed with or immersed in a cooling medium, typically chilled water or a water-glycol mixture. Heat from the hot beverage transfers through the container walls to the cooler medium, reducing the beverage temperature. The system often employs counter-current flow, where the coldest coolant meets the containers just before they exit, maximizing efficiency. Temperature control is achieved through heat exchangers, chillers, and recirculation systems, ensuring precise and consistent cooling rates. The conveyor speed and coolant flow rate are adjustable to control cooling time and achieve the desired final temperature.

Common Materials

Stainless Steel (AISI 304/316), Food-grade plastics, Insulation materials

Technical Parameters

Parameter	Typical range	Notes & selection driver
Cooling Capacity	5000–20000 kg/h	Determines throughput; match to production line speed.
Cooling Temperature Range	2–25 °C	Final product temperature after cooling.
Temperature Uniformity	±1 °C	Ensures consistent cooling across all bottles/cans.
Cooling Water Flow Rate	20–80 m³/h	Required for heat exchange; affects cooling efficiency.
Cooling Water Inlet Temperature	5–15 °C	Lower inlet temperature improves cooling performance.
Cooling Water Pressure	0.2–0.4 MPa	Ensure adequate pressure for spray nozzles.
Conveyor Speed	0.5–2.0 m/min	Adjustable to control cooling time.
Electrical Supply	380 ±10% V AC	Three-phase; other voltages available on request.IEC 60038
Installed Power	15–45 kW	Includes pumps, fans, and control system.
Material (Product Contact)	304 SS	Stainless steel; 316L optional for high-corrosion environments.ASTM A240
Insulation Thickness	50–100 mm	Reduces heat gain and energy loss.
Overall Dimensions (L×W×H)	6000–12000×1500–2500×2000–3000 mm	Depends on capacity and configuration.
Weight	3000–8000 kg	Approximate; varies with size and options.
Ingress Protection Rating	IP54–IP65	Protects against water jets and dust.IEC 60529

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Coolant Spray Nozzles
Distribute cooling medium evenly over beverage containers.

Material: Stainless Steel
Coolant Collection Trough Part
Collects and channels used coolant for recirculation.

Material: Stainless Steel
Insulation Panels Part
Minimize heat loss and maintain temperature control within the section.

Material: Polyurethane foam with stainless steel cladding
Heat Exchanger
Takes the heat picked up by the coolant back out of the loop.
Chiller
Produces the chilled water or water-glycol that the nozzles spray.
Coolant Recirculation System
Returns the collected coolant through the chiller and back to the nozzles.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

UHT Sterilization Unit

View system integration details

Non-post Cured

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Manufacturers of Cooling Section

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Frequently Asked Questions

What is the primary function of the Cooling Section?

The Cooling Section rapidly and uniformly lowers the temperature of pasteurized beverages from pasteurization temperatures (e.g., 60-95°C) to safe filling temperatures (e.g., 20-40°C), halting thermal treatment and stabilizing the product for packaging.

How does the cooling process work?

Beverage containers move on a conveyor through the section and are sprayed with or immersed in a cooling medium, such as chilled water or a water-glycol mixture. Heat transfers from the hot beverage to the cooler medium, often using counter-current flow for efficiency.

What materials are used in the Cooling Section?

Product contact surfaces are typically stainless steel (AISI 304/316), with food-grade plastics and insulation materials. For high-corrosion environments, 316L stainless steel may be optional.

What parameters should be verified before purchasing?

Key parameters include cooling capacity, temperature range, uniformity, water flow rate, inlet temperature, pressure, conveyor speed, electrical supply, installed power, material grade, insulation thickness, dimensions, weight, and ingress protection rating. Always confirm these with the manufacturer for your specific application.

Data Basis

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pressure:	Max 10 bar (145 psi)
flow rate:	5-500 m³/hr
temperature:	Inlet: 60-95°C, Outlet: 2-25°C
slurry concentration:	Max 15% solids by volume

Cooling Section

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards