Scraped Surface Heat Exchangers
The Rotoflo Scraped Surface Heat Exchanger (also known as a DSSHE or Dynamic Scraped Surface Heat Exchanger) is designed to highly heat or cool the most challenging products. This includes highly viscous products and slurries that cannot be processed efficiently through a tube-in-tube type heat exchanger. This includes highly viscous products and slurries that cannot be processed efficiently through a tube-in-tube type heat exchanger. Whilst the Dimple Profile of a Dimpleflo Monotube Heat Exchanger achieves high heat transfer rates for mince, syrups, slurries and even sewerage, extremely viscous products often need to be processed through a Scraped Surface Heat Exchanger.
Other products where a heat exchanger with internal scraper blades is ideal include, gels or fluids that congeal or crystalize rapidly, such as petroleum jelly.
How Does A Scraped Surface Heat Exchanger Work?
Rotorflo Scraped Surface Heat exchangers have a powered internal scraper which scrapes build up or fouling from the heat transfer surface. The scrapers move product away from the heat exchanger wall which guarantee optimum mixing (no hot or cold spots) and high heat transfer rates. As heat transfer rates and the cross-sectional area through the heat exchanger remain constant, a scraped surface heat exchanger typically has a lower pressure drop then pumping highly viscous products through a double pipe heat exchanger.
The scraper blades in the Rotorflo Heat Exchanger are manufactured from hygienic, chemical resistant, non-toxic synthetic materials. All other componentry is 316 stainless steel as standard. If products are particularly corrosive then the internal components of the heat exchanger can be manufactured from super duplex or high nickel alloys and the scrapers from PTFE or similar.
Benefits and Features
- Efficient heat transfer by continuous scraping of entire heat exchange surface
- Large heating area for footprint size
- Gentle action scraping ensures product piece integrity
- The PTFE Scrapers can be easily replaced when worn
- Easy to inspect and maintain
- Cleanable in Place
Custom Engineered Dynamic Scraped Surface Heat Exchangers
Dynamic Scraped surface heat exchangers are ideal for continuous processing of highly viscous, sticky and heat sensitive products that prove a challenge to process with other methods. Scraped Surface heat exchangers achieve high heat transfer efficiency whilst minimising fouling that would occur in other heat exchanger designs. Dynamic scraped surface heat exchangers provide heating and cooling solutions across food and beverage, industrial, pharmaceutical & chemical applications.
Specific applications where scraped surface heat exchangers are typically used in Gels & Fluids that congeal or crystalise, including:- Cooling Petroleum Jelly
- Sauces
- Spreads
- Cream Cheese
- Shampoos & Conditioners
- Toothpaste
- Cosmetic Products
- Chilling mince and offal
Rotorflo DSSHE can be supplied as free-standing heat exchanger, or in conjunction with other tubular heat exchangers e.g. Petroleum jelly can be easily heated using steam in a Dimpleflo Multitube heat exchanger then cooled through a scraped surface unit. A Thermpro temperature control system can be integrated with the DSSHE providing optimum temperature and pressure control.
Contact Our Heat Exchanger Specialists Today!
Teralba Industries provides extremely tailored industrial heat exchanger solutions across any application. Whether you want to find out more about installing or commissioning a scraped surface heat exchanger or need a repair to a pre-existing fit out, the team at Teralba can help you.
Simply use the contact page to submit your enquiry or give us a call on 1300 20 70 20 so we can discuss your requirements.
For further information or to obtain a heat exchanger selection and quotation please email your requirements through to our experienced heat transfer engineers at: sales@teralba.com or phone: 1300 794 591
Scraped Surface Heat Exchanger FAQs
Learn more about Scraped Surface Heat Exchangers below
Scraped surface heat exchangers heat and cool challenging viscous products that can’t be processed by other heat exchanger methods. Industrial scraped surface heat exchangers have internal scraper blades that continuously move product from the wall, preventing burn on or congealing of product, and increasing heat transfer coefficients.
Given the specificity of viscous products, scraped surface heat exchangers provide heating and cooling solutions across food and beverage, industrial, pharmaceutical & chemical applications.
Unlike other tubular heat exchanger configurations, scraped surface heat exchangers do have moving parts and hence will require some maintenance. This includes the PTFE scrapers and maintenance on the drive motor and gearbox that rotates the scraper.
Teralba Industries is an Australian leading manufacturer of Heat Exchanger systems with over 30 years of industry experience.Our expert team is equipped to assist through the whole process from custom engineering a scraped surface heat exchangers specific to the application right through to the installation, and maintenance.
Why Choose Teralba Industries As Your Scraped Surface Heat Exchanger Supplier?
Over 30 Years Of Industry Experience
We’ve been manufacturing heat exchanger systems across a number of industries since 1975, making us one of Australia’s most experienced and established companies in heat exchanger technology design & production.
Ongoing Support, Servicing & Maintenance
Teralba’s heat exchanger experts offer ongoing support for all industrial scraped surface heat exchangers from simple servicing and sourcing spare parts.
Custom Engineered Solutions
Our dynamic scraped surface heat exchangers are a highly effective way of processing challenging viscous products and being custom designed for your process results in minimised product fouling which saves production costs.
Do you have a difficult product that is challenging to heat or cool or want to progress from batch process to inline cooking or cooling? Contact: sales@teralba.com or phone: 1300 20 70 20
