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Single and Multiple Effect Evaporator

The raw material liquid is distributed into each evaporation pipe unfirmly, under the function of gravity, liquid flow from top to bottom, it becomes the thin film and heat exchanging with steam.

Structure and character

Main Feature

Evaporator Type:
Falling film evaporator Used for low viscosity, good fluidity material
Rising film evaporator Used for high viscosity, poor fluidity material
Forced-circulation evaporator Used for puree material
For the characteristic of juice, we select the falling film evaporator. There are four types of such evaporator: Parameters:
Item 2 effects evaporator 3 effects evaporator 4 effects evaporator 5 effects evaporator
Water evaporation volume (kg/h) 1200-5000 3600-20000 12000-50000 20000-70000
Feed concentration (%) Depend on material
Product concentration (%) Depend on material
Steam pressure (Mpa) 0.6-0.8
Steam consumption (kg) 600-2500 1200-6700 3000-12500 4000-14000
Evaporation temperature (°C) 48-90
Sterilizing temperature (°C) 86-110
Cooling water volume (T) 9-14 7-9 6-7 5-6

Principle

The raw material liquid is distributed into each evaporation pipe unfirmly, under the function of gravity, liquid flow from top to bottom, it becomes the thin film and heat exchanging with steam. Generated secondary steam go along with the liquid film, it increases the liquid flow speed, heat exchanging rate and reduces the retention time. Fall film evaporation fits for heat sensitive product and there’s very less product loss because of bubbling

Construction

A double-effect falling film evaporator is composed of following components: – Effect I / Effect II heater; – Effect I / Effect II Separator; – Condenser; – Thermal Vapor Recompressor; – Vacuum System; – Material Delivery Pump: material delivery pumps of each effect, condensate discharging pump; – Operation platform, electrical control system, pipelines and valves and etc.

Features

1 Best product quality due to gentle evaporation, mostly under vacuum, and extremely short residence times in the falling film evaporator. 2 High energy efficiency due to multiple-effect arrangement or heating by thermal or mechanical vapour recompressor, based upon the lowest theoretical temperature difference. 3 Simple process control and automation due to their small liquid content falling film evaporators react quickly to changes in energy supply, vacuum, feed quantities, concentrations, etc. This is an important prerequisite for a uniform final concentrate. 4 Flexible operation quick start-up and easy switchover from operation to cleaning, uncomplicated changes of product. 5. Particularly suited for temperature-sensitive products.

QA&QC

FAQ:

1. Q : How can customer know the processes of order?

A : We will take photo or video during manufacturing every two weeks to make customer clear about the order. When goods is finished,we will take more detailed photos or video for inspect. You can also come to our factory to inspect by yourself.

2. Q : Do you supply installation equipment in oversea? 

A : Yes, if need, we can also send our installation engineer to your factory to help you do installation and testing. And you need to provides round-trip ticket and accommodation for our engineer. The extra salary of one installation engineer is 200USD/day.

3. Q : How to control quality?

A : All material we use has material certification. Before any piece of equipment leaves CHINZ. It goes through a complete quality and assurance control inspection. This inspection assures your equipment meets all specifications and is in proper working order before it leaves our facility and arrives at your door.

4. Q : What is the shipment schedule?

A : We will send you photographs of your order being loaded into the shipping container at the factory. The shipping container will generally leave port 3-4 days after loading. We will send you a bill of lading and final statement of account within one week of that time. The bill of lading will include the shipping container numbers. You can track your shipping container. Approximately 10 days prior to delivery, we will send you an ETA (Estimated Time of Arrival) notice from the shipping time. Please remember that the listed delivery date is only an estimate, and is subject to port unloading schedules, customs processing, and the dictates of the local delivery truck company. You will be directly contacted by the shipping company’s local truck delivery services approximately 48 hours prior to the date of delivery to schedule a delivery time. If you need to delay the final delivery, there will be a “pull” fee of approximately $100, and a storage fee of approximately $150 per shipping container per day.