Electric Vacuum Scraped Surface Evaporator for Liquids 1

Electric Vacuum Scraped Surface Evaporator for Liquids 2

Electric Vacuum Scraped Surface Evaporator for Liquids 3

Electric Vacuum Scraped Surface Evaporator for Liquids 4

Electric Vacuum Scraped Surface Evaporator for Liquids 5

Electric Vacuum Scraped Surface Evaporator for Liquids 6

Electric Vacuum Scraped Surface Evaporator for Liquids

An electric vacuum scraped surface evaporator gently concentrates and recovers liquids by heating under vacuum while rotating scrapers keep the product moving to prevent sticking. It delivers fast, even evaporation, handles viscous or heat‑sensitive materials, reduces fouling and coking, saves energy by lowering boiling points, and lets you precisely control temperature and vacuum for high yield. Compact, easy to clean and automatable, it minimizes product loss and downtime for reliable continuous or batch operation.

brand name:

QILEE

Shipping:

Support Sea freight

Payments:

L/C,D/A,D/P,T/T,Western Union,MoneyGram,OA

Lead Time:

1-1(pieces):60(days),>1(pieces):To be negotiated(days)

Place of Origin:

China

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Temperature(℃)

Vacuum(Pa)

8000

Electric consumption(KW/L)

0.25

Evaporation capacity(L/h)

Power(w)

250

Processing

Vacuum Distillation

Power Source

Electric

Weight (KG)

Material

Stainless Steel

voltage

220/380V

Product name

Scraped Surface Evaporator

warranty

1 Year

place of origin

Shanghai, China

Efficient, Sanitary, Compact, Low-Maintenance

The Vacuum Heat Pump Evaporator provides ultra-efficient, low-temperature evaporation for heat-sensitive liquids, cutting energy consumption by up to 90% while offering fully automatic, low-maintenance operation. Its compact, modular shape, corrosion-resistant high-quality construction and German core components deliver reliable performance, a small footprint and easy assembly. Packaged in standard export cartons for fast delivery, this stylish industrial unit reduces supporting facility costs and maximizes environmental and cost savings for small and medium enterprises.

Electric Vacuum Scraped Evaporator

The Vacuum Heat Pump Evaporator is an electric vacuum scraped-surface unit that uses heat-pump compression and high vacuum to vaporize liquids at ultra-low temperatures, combining German scraped-surface core components with compact modular assembly for reliable, corrosion-minimizing operation. Its value attributes include up to 90% energy savings versus traditional evaporation, single-energy electrical operation without steam or external cooling, integrated refrigerant recovery and fully automatic control for simple, low-cost operation and maintenance. Functionally, the scraped-surface design prevents fouling and enables continuous condensation, making the structure ideal for heat-sensitive and high-viscosity liquids in pharmaceutical, chemical, food, wastewater and other small-to-medium production applications up to about 1000 kg/h with a small footprint.

Here are five four-word subheading options:

The Vacuum Heat Pump Evaporator is a scraped surface evaporator that employs heat pump compression and a high vacuum to achieve ultra-low temperature evaporation ideal for heat-sensitive liquids. Using German core components assembled domestically, it cuts energy consumption by up to 90%, runs solely on electricity, and reclaims refrigerant condensate to minimize cooling water usage. Its compact, modular design with fully automatic control, low maintenance and suitability for throughputs under 1000 kg/hr makes it well suited for pharmaceuticals, chemicals, food, wastewater and other industrial applications.

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Efficient Gentle Low-Fouling Evaporation

Born from years of thermal engineering and food-grade processing expertise, our Electric Vacuum Scraped Surface Evaporator for Liquids reflects the brand's commitment to energy-efficient, hygienic design and robust materials. The Vacuum Heat Pump Evaporator integrates vacuum-assisted boiling and high-speed scraping to concentrate heat-sensitive liquids gently while minimizing fouling and product loss, delivering precise temperature control and rapid startup. Key features and advantages include modular stainless-steel construction, automated control and CIP cleaning, low energy consumption through heat pump recovery, scalable capacity, and simplified maintenance for long service life.

Material introduction

The Vacuum Heat Pump Evaporator's wetted components are typically manufactured from high-grade stainless steel (316L) or corrosion-resistant alloys like Hastelloy, with polished internal finishes to minimize fouling and resist aggressive chemical media. Scraped surface blades are made from PTFE or stainless steel mounted on a robust, vacuum-rated shaft with mechanical seals and PTFE/Viton gaskets, while vacuum jackets, thermal insulation and refrigerant-rated piping are built to hermetic standards for ultra-low temperature operation. Compressors, condensers and heat-exchange circuits use refrigerant-compatible copper or stainless tubing and hermetic compressors with protective coatings, and the modular design permits food-grade surface treatments and long service life with low maintenance.

◎ Wetted-Part Materials

◎ Seals and Heat‑Transfer Surfaces

◎ Structural & Refrigeration Systems

FAQ

What kinds of liquids are best suited for an electric vacuum scraped surface evaporator?

Liquids that are viscous, prone to fouling, contain suspended solids or crystals, or are heat-sensitive are ideal. Examples include syrups and molasses, fruit juices, dairy streams (whey concentrates), egg products, polymer solutions, pharmaceutical broths, and solvent-bearing industrial wastewater. The combination of vacuum (lower boiling temperature) and continuous mechanical scraping prevents surface film formation and local overheating, so the unit handles sticky, particulate-laden, and thermally-sensitive feeds much better than conventional falling-film or plate evaporators.

How does the evaporator operate in a typical process line?

Feed is pumped into the heated tubular or scraped chamber while the rotating electric-driven scraper continuously removes the boundary layer from the heat-transfer surface. A vacuum reduces the boiling point so evaporation occurs at a lower temperature, protecting heat-sensitive components. Vapor is drawn off to a condenser or vapor recovery system, and the concentrated liquid (or crystallized product) is discharged. Process control typically includes vacuum level, heating medium temperature, scraper speed, feed flow, and concentrate setpoint to control residence time and product quality.

What industrial applications and scenarios commonly use this equipment?

Common applications: concentration of food and beverage products (juice, nectar, dairy, syrups), production/evaporation in confectionery (molasses, invert sugar), pharmaceutical and biotech concentration of formulations and extracts, solvent recovery from process streams, chemical crystallization and mother liquor concentration, and thickening/dewatering of industrial or municipal wastewater. It’s also used for continuous crystallizers where scraping encourages uniform crystal formation and prevents caking.

What operational parameters should I adjust to optimize performance and avoid problems like fouling or product degradation?

Key parameters are vacuum level (sets boiling point), heating medium temperature (keeps bulk temperature low), scraper rotation speed (controls shear and surface renewal), feed flowrate (affects residence time), and feed concentration. For fouling-prone feeds, increase scraper speed and maintain thin film contact; for delicate biomaterials, reduce temperature and shorten residence time. Use anti-foaming agents if foaming occurs, and monitor viscosity and concentration to prevent over-thickening. Proper condenser and vacuum control also stabilize evaporation rates.

What are the cleaning, maintenance, and reliability considerations for this equipment?

Many units support Clean-In-Place (CIP); design choice of access ports and removable scrapers speeds manual cleaning if required. Routine maintenance includes inspection and replacement of scraper blades, seals and shaft bearings, checking vacuum pump oil and performance, and ensuring condensation lines are clear. Mechanical scrapers and motor drives are wear points; schedule inspections based on operating hours and product abrasiveness. With proper maintenance, downtime is moderate and predictable compared with frequent manual cleaning needed on non-scraped systems.

Are there safety, material, and regulatory issues I should consider when selecting and installing one?

Yes. For flammable solvents you’ll need explosion-proof motors, grounded electrical systems, and appropriate ventilation (ATEX/NEC compliance). Choose materials of construction (e.g., 316L stainless steel) compatible with product chemistry and sanitary/regulatory requirements (food-grade, GMP). Provide adequate vacuum reliefs, pressure/vacuum monitoring, and interlocks to prevent dry-running or overpressure. Consider vapor handling (condensers, solvent recovery, or effluent treatment) to meet environmental permits and occupational exposure limits.

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