Tube in Tube Heat Exchanger
EasyReal’s tube in tube heat exchanger provides a robust and efficient solution for thermal treatment of thick and particulate food liquids. Its double-tube construction allows product to flow in the inner tube while hot or cold utility media flows in the outer shell, achieving direct surface heat exchange. This setup enables quick heating and cooling, even for sticky or highly viscous materials like tomato paste or mango pulp.
Unlike plate or shell-and-tube systems, the tube in tube design minimizes clogging risk and tolerates a wider range of particle sizes. The smooth, hygienic inner surface prevents product buildup and supports full CIP cleaning cycles. The exchanger can operate at temperatures up to 150°C and pressures up to 10 bar, making it suitable for both HTST and UHT thermal processes.
All contact parts are built from food-grade stainless steel. Optional features include insulation jackets, steam traps, and flow direction reversers to match different process requirements. Combined with EasyReal’s automated control interface, it becomes a core component of any pasteurization or sterilization line.
The tube in tube heat exchanger fits a wide range of industries where gentle and uniform thermal treatment is required. Food factories producing tomato paste, chili sauce, ketchup, mango puree, guava pulp, or concentrated juice benefit from its clog-free flow path. Its smooth operation supports hot-filling, extended shelf-life (ESL), and aseptic packaging workflows.
In the dairy industry, this unit handles high-fat creams or dairy-based drinks without scorching or protein denaturation. In plant-based beverage lines, it processes oat, soy, or almond drinks while preserving sensory qualities.
R&D centers and pilot plants also choose tube in tube pasteurizers for flexible testing of viscous samples, recipe formulation, and process parameter optimization. When integrated with flow meters, sensors, and PLC control panels, it enables real-time adjustment of sterilization parameters to meet diverse product and safety goals.
Thick or sticky fluids like tomato paste or banana puree don’t behave like water. They resist flow, retain heat unevenly, and may cause scorched deposits. Standard plate heat exchangers often struggle with these conditions, leading to hygiene risks and inefficiencies.
The tube in tube heat exchanger addresses these challenges with a design optimized for difficult fluids. It accommodates solids, seeds, or fiber content without blockage. Its uniform heating profile avoids localized overheating that could alter color, flavor, or nutrition.
For example:
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Tomato paste sterilization needs rapid heating to 110–125°C, followed by quick cooling.
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Fruit puree pasteurization requires careful control around 90–105°C to avoid breakdown of texture and vitamins.
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Creamy plant milks must maintain emulsion stability under heat stress.
These processing requirements demand equipment that is precise, easy to clean, and compatible with CIP and SIP systems. EasyReal’s tube in tube sterilizer fits this role perfectly.
Choosing the correct tube in tube pasteurizer system depends on four key factors: product type, flow rate, desired shelf life, and packaging method.
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Product Type
Thick pastes (e.g., tomato concentrate, guava pulp) need wider inner tubes. Juices with pulp may require turbulent flow design to prevent settling. Clear liquids demand minimal heat exposure to preserve aroma. -
Flow Rate / Capacity
Small-scale plants may require 500–2000L/h. Industrial lines range from 5,000 to 25,000L/h. The number of tube sections should match throughput and heating load. -
Sterilization Level
Choose HTST (90–105°C) for mild shelf-life extension. For UHT (135–150°C), ensure steam jacket options and insulation are included. -
Packaging Method
For hot-fill bottles, maintain outlet temperature above 85°C. For aseptic drums or BIB filling, integrate with cooling exchangers and aseptic valves.
EasyReal provides layout design and flow simulation to help customers select the best configuration. Our modular design supports future upgrades.
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1 |
Name |
Tube in Tube Sterilizers |
|
2 |
Manufacturer |
EasyReal Tech |
|
3 |
Automation Degree |
Fully Automatic |
|
4 |
Type of Exchanger |
tube in tube heat exchanger |
|
5 |
Flow Capacity |
100~12000 L/H |
|
6 |
Product Pump |
High pressure pump |
|
7 |
Max. Pressure |
20 bar |
|
8 |
SIP Function |
Available |
|
9 |
CIP Function |
Available |
|
10 |
Inbuilt Homogenization |
Optional |
|
11 |
Inbuilt Vacuum Deaerator |
Optional |
|
12 |
Inline Aseptic Bag Filling | Available |
|
13 |
Sterilization Temperature |
Adjustable |
|
14 |
Outlet Temperature |
Adjustable. Aseptic filling ≤40℃ |
At present, tube-in-tube type Sterilization has been widely used in various fields, such as Food, Beverage, Healthcare products, etc., for example:
1. Concentrated Fruit and Vegetable Paste
2. Fruit and Vegetable Puree/Concentrated Puree
3. Fruit Jam
4. Baby Food
5. Other High Viscosity Liquid Products.
