The Dimpleflo Double Pipe Heat Exchanger (also known as “Tube-in-Tube”) is the hygienic heat exchanger’s simplest and most robust configuration. Dimpleflo tubes in tube heat exchangers are utilised for fluids containing stringy fibres, chunks or other particles and low-high viscosity fluids.
A tube in tube heat exchanger involves the product flowing through the inner heat transfer tubes and the service fluid flowing through the surrounding shell. Because of its configuration and geometry, the Dimpleflo Double Tube heat exchanger is a true counter-current heat exchanger providing absolute product integrity.
Using dimple tube technology, both heat transfer and efficiency are increased over conventional smooth tube heat exchangers. A further benefit of the turbulence enhancing dimples is potential fouling is minimised, especially for fouling and viscous products.
Tube-in-tube heat exchangers are a type of heat exchanger that features concentric tubes, allowing heat exchange between fluids flowing inside and outside the tubes. They are used in various industries, and each type is designed for specific applications:
These are designed for heavy-duty industrial applications. They typically handle high temperatures and pressures and are made of highly quality materials that can withstand harsh industrial environments. They are often used in chemical processing, power plants, and other manufacturing industries.
Specifically designed for wastewater treatment plants or industries dealing with waste sludge, these heat exchangers are built to handle viscous fluids and are often constructed to resist corrosion and clogging. They play a crucial role in the processing and treatment of sludge.
These are used in industries where hygiene is paramount, such as food, beverage, and pharmaceuticals. They are designed for easy cleaning and sterilisation, often made of stainless steel, and have smooth surfaces to prevent bacterial growth.
Made for the wine industry, these heat exchangers are used for temperature control during fermentation and storage. They are made to handle specific winemaking requirements, such as gentle product handling to preserve flavour and quality.
Used primarily for waste recovery and environmental management, these heat exchangers are designed to recover heat from waste materials or processes. They are often part of systems that reduce energy consumption and minimise environmental impact.
Each type of tube-in-tube heat exchanger is uniquely engineered to meet the specific requirements of its intended application, ensuring efficiency, reliability, and safety in their respective industrial processes.
Double tube heat exchangers, specifically Dimpleflo Tube-in-Tube type, are versatile and efficient in handling various heating, cooling, and pasteurising applications across different industries. Each of these applications highlights the flexibility and efficiency of double tube heat exchangers in providing critical temperature control in various industrial processes, ensuring product quality and safety.
Here’s an overview of each application:
Used in the medical and pharmaceutical sectors, these heat exchangers cool blood plasma efficiently, a critical process for preserving its quality and safety for medical use.
Precise temperature control is vital for safe and effective processing of injectable drugs. These heat exchangers provide the conditions to process these sensitive pharmaceutical products safely.
Maintaining flavour and nutritional value through precise heating and cooling is key for fruit juice processing, including concentrates. These heat exchangers provide the necessary temperature control for quality juice production.
In winemaking, controlling grape temperature, including its skins and stalks, is essential for flavour and quality. These heat exchangers effectively chill the must, impacting the wine's final character.
Accurate heating and cooling are necessary to preserve the texture and flavour of jams and fruit pastes. These heat exchangers provide the precise temperature control needed for high-quality fruit processing production.
In chocolate production, maintaining precise temperatures is crucial for texture and quality. These heat exchangers precisely control chocolate temperatures during processing, which is crucial for producing high-quality chocolate.
In the dairy industry, cooling whole fruit yoghurts without compromising the fruit's integrity and the product's texture is crucial. These heat exchangers cool yoghurts effectively while preserving their quality.
The pasteurisation of custards requires strict temperature control to ensure safety and quality. These heat exchangers efficiently pasteurise custards, killing harmful microbes while maintaining quality.
In pet food production, cooling is essential for safety and preservation. These heat exchangers efficiently cool pet food, mince, and offal, ensuring product quality and safety.
Expansion bellows are integrated in the outer shell to absorb differential expansion and contraction between shell and inner heat transfer tube. Options for the Double Tube Heat Exchanger configuration includes ceiling or wall mounting, insulation (for chilled or high temperature) and stainless steel cladding.
Designed with high quality stainless steel for versatility
All Teralba Heat Exchangers are manufactured with 316 stainless steel dimpled heat transfer tubes as standard. Heat exchangers for tomato based products, products high in salt and other corrosive ingredients, can be manufactured using 2205 duplex material. Titanium heat transfer tubes and super duplex heat exchangers are also available. Teralba have manufactured these tube-in-tube type heat exchangers as jacketed heat transfer lines, vertical heat exchangers and virtually any shape or size.
For heating and cooling of pharmaceutical and veterinary products, Dimpleflo Monotube Heat Exchangers can be supplied with internal surface finishes of 0.4Ra and complete quality assurance.
With over 35 years in the design and manufacture of tube in tube heat exchangers, we have many units in service in various industries today. If your tube heat exchanger requires servicing, our dedicated heat exchanger service department has the expertise and experience to refurbish any tubular heat exchanger. They also offer a heat exchanger optimisation service to ensure your heat exchanger operates at peak performance.
Custom Engineered Double Tube Heat Exchangers For Any Industrial or Sanitary Application
Teralba’s heat exchanger experts offer ongoing support for all industrial scraped surface heat exchangers, from simple servicing and sourcing spare parts.
Our double tube heat exchangers are a highly effective way of processing challenging viscous products, and being custom designed for your process results in minimised product fouling, saving production costs.
With over 35 years in the design and manufacture of tube-in-tube heat exchangers we have many units in service in various industries today. If your tube heat exchanger requires servicing, our dedicated heat exchanger service department has the expertise and experience to refurbish any tubular heat exchanger. They also offer a heat exchanger optimisation service to ensure your heat exchanger is operating at peak performance.
A double tube heat exchanger or water tube heat exchanger works by conduction. If it’s used to cool a substance, the higher temperature flow requiring cooling runs through the inner tube, while the cooling media (typically chilled water or glycol) runs through the outer tube. This way, the heat from the liquid in the inner tube transfers through the pipe wall. The tubes are made of stainless steel to conduct heat, although other materials can also be used, depending on your heat transfer requirements.
Double tube heat exchanger design is such that this equipment can be used for various reasons. For healthcare purposes, a double pipe heat exchanger can be used for cooling blood plasma, processing injectables and sterilising and warming water for injections. Double pipe heat exchangers are also used extensively in the food industry for chilling grape must (crushed grapes), heating or cooling jam, pasteurising custard, cooling yoghurt, heating and cooling fruit juice, cooling pet food and other meat products and maintaining the temperature of the chocolate.
Tube-in-tube heat exchangers are designed with efficiency in mind. The simple design of a tube within a tube means that products are warmed and cooled efficiently, with consideration given to the velocity of the product through the tube and the velocity of the heating/cooling media in the jacket. Working equally well at high or low temperatures. Tube-in-tube heat exchangers are also aerodynamically and hydrodynamically designed, enabling them to withstand high pressures.
A double pipe heat exchanger comprises a tube within a tube, with the inner tube carrying the liquid or product to be heated or cooled and the outer tube carrying the flow that will perform the heating or cooling.
A shell and tube heat exchanger works similarly but consists of an outer shell containing many pipes inside, thus increasing the heat transfer area. This type of exchanger is also known as a multitube heat exchanger.
A baffle inside a shell and tube heat exchanger is a panel that directs flow across and around the heat exchanger tube bundle, creating turbulence and increasing the heat transfer coefficient.
An integral part of multitube heat exchanger design, baffles have several benefits. They hold inner tubes in the correct position, prevent steam starvation, and help guide liquid in the right direction to increase velocity, efficient heat transfer, and aid in mixing.
If you encounter an issue such as a double tube heat exchanger rupture or blocking, help is at hand. Teralba offers a full maintenance and repair service to keep your double tube heat exchanger in great condition and make repairs as necessary.
We stock a full range of spare parts to ensure your repair is as quick and easy as possible.
Our experts can also calculate double tube heat exchangers as part of our assessment service to diagnose a fault or optimise performance.
The tubes are typically made of 316 stainless steel with a dimpled profile to conduct heat. However, other materials, including super duplex stainless steel and titanium, can also be used depending on your requirements.
Teralba Industries has an expert heat exchanger servicing team and conducts ongoing servicing & preventative maintenance for double pipe heat exchangers. Our team can also assist with spare parts sourcing for heat exchangers & repairs. A detailed service report on completion if required.
Dimpleflo Double Tube heat exchangers feature a unique dimpled tube design within their double tube configuration. This design significantly improves heat transfer efficiency compared to standard smooth tube double heat exchangers, improving process control and efficiency.
The dimples in the inner tube create turbulence, increasing the heat transfer surface area and enhancing the heat exchange efficiency. This design is particularly effective in the double tube setup, allowing for more effective heating or cooling, especially with viscous fluids.
to the larger space provided by the double tube structure. This makes them suitable for industries like food processing, where particulates are common.
These heat exchangers are designed for easy maintenance and cleaning, which is crucial in industries that require high hygiene standards. Their construction allows for straightforward disassembly and reassembly, facilitating regular cleaning schedules.
Teralba’s Dimpleflo Double Tube heat exchangers are versatile and suitable for applications ranging from cooling delicate products like blood plasma to heating and pasteurising food products and managing process temperatures in pharmaceuticals.
The improved heat transfer efficiency of the Dimpleflo Double Tube design means that they require less energy to achieve the desired temperature changes, making them an energy-efficient option.
These heat exchangers are typically made from durable, corrosion-resistant materials such as stainless steel, ensuring longevity and suitability for various industrial applications.
Yes, Dimpleflo Double Tube heat exchangers offer size, material, and design customisation options to meet specific industrial requirements and process conditions.
Dimpleflo provides comprehensive support from design to after-sales service, and their double-tube heat exchangers usually come with a warranty, ensuring quality and reliability.
Based in NSW, Teralba operates across Australia and the world to build industrial customised heat exchangers. Whether you want to find out more about installing or commissioning a double tube heat exchanger, need an emergency repair or want to know how to optimise the performance of an existing double pipe heat exchanger, the team at Teralba can help you.
Simply fill up the form below to submit your enquiry or give us a call on 1300 20 70 20 so we can discuss your requirements.
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