FFE 200L Single-Effect Falling Film Evaporator

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Product Description

A single-effect falling film evaporator is a type of falling film evaporator, which is a concentration and evaporation device used in industries. It is applicable for the concentration and evaporation of water, organic solvents and solutions in the pharmaceutical, food, chemical, light industries and other industries, and it is especially suitable for heat sensitive materials and materials with higher concentration and higher viscosity. The equipment is continuously operated under vacuum and low temperature conditions, with high evaporation capacity, energy conservation, low operating cost. It can ensure that the material is invariable during the evaporation.

A single-effect falling film evaporator used for ethanol solution production is different from the general single-effect falling film evaporator used for aqueous solution production. Ethanol has a low boiling point and is volatile. Ethanol can be evaporated easily under vacuum and reduced pressure, so it has a small evaporation area. It is difficult to condense and recover ethanol vapor, so the heat exchange area of the condenser is relatively large. In order to obtain a good cooling effect, two or more stages are often used for cooling recovery, which is also different from the general aqueous solution evaporation.

Product Parameters

Model FFE-20 FFE-50 FFE-100 FFE-200 FFE-500 FFE-1000
Evaporation speed 20 50 100 200 500 1000
Heating area 1.2 3 5 12 25 50
Condensing area 1.5 5 7.5 16 30 60
Feeding pump 0.55 0.55 1.1 1.5 1.5 1.5
Discharge pump 1 0.55 0.55 1.1 1.5 1.5 1.5
Discharge pump 2 0.55 0.55 1.1 1.1 1.5 1.5
Water ring vacuum pump 0.75 0.81 0.81 1.5 2.2 3.85
Power 2.4 2.46 4.11 5.6 6.7 8.35
Power supply 220V/60Hz Three-phase power. Other components could be customized.

Note : Discharge pump 1: for concentrate; Discharge pump 2: for ethanol.

Product Structures


S01——Evaporation and separation chamber

E01——Tube heater       E02——Tube condenser

E03——Coil condenser  E04——Vacuum pump cooler

V01——Middle tank       V02——Ethanol collection tank

P01——Feeding pump   P02——Concentrate discharge pump

P03——Discharge pump of ethanol      P04——Water ring vacuum pump

Working Process

Feeding(V01) – evaporation(E01) – separation(S01) – condensation(E02) – cooling (E03) – storage tank (V02)

Product Features

1. Low heating temperature

2. High evaporation speed

3. Short liquid residence time

4. Continuously feeding and discharging

5. Suitable for heat sensitive materials

6. Energy-saving

Product Advantages

1. Professional design team can provide customized services.

2. Professionally designed products for ethanol recovery.

3. Can provide equipment drawings, installation instructions, operating instructions and so on.

4. Can provide matched heat and cold sources.

5. The solution of low-temperature ethanol extraction (CBD extraction) can be systematically solved.

Product Details

1. Coil distributor is designed properly, and the cloth is distributed evenly.

Coil distributor is designed properly
Coil distributor

2. It adopts tube cooler and coil cooler, which has a better effect.

adopts tube cooler and coil cooler
tube cooler&coil cooler

3. Evaporation and separation chamber is designed with a wide view, so users can observe the evaporation process clearly.

Evaporation and separation chamber is designed with a wide view
Wide view

4. Feeding pump and discharge pump adopt waterproofing structure, which can discharge materials at negative pressure. Pumping air does not damage the equipment.

Feeding pump and discharge pump
Feeding pump and discharge pump

5. Water ring vacuum pump is equipped with cooling water tank, which can offer feeding pump/discharge pump shaft seal water supply.

Water ring vacuum pump
Water ring vacuum pump

Matching Products

1. Heat supply to achieve ethanol evaporation: steam boiler, circulating oil bath tank and so on.

Heat supply
Heat supply

2. Cooling supply to achieve ethanol recovery: cooling tower, chiller, refrigerating machine and so on.

Cooling supply
Cooling supply

3. Storage tank to store ethanol.

Storage tank
Storage tank

Product Applications

The single-effect falling film evaporator is widely used in food, dairy, chemical, pharmaceutical, biological engineering, environmental protection engineering and corn deep processing, such as for aqueous solutions, organic solvent solutions, fruit and vegetable juices, milk, eggs, vitamin C, collagen , tea immersion liquid, sodium glutamate and other evaporative concentration. It is especially suitable for evaporative concentration of heat-sensitive materials, and the beneficial elements of the material can be protected to the greatest extent during the heating and evaporation process.


1. Why is a single-effect falling film evaporator commonly used for ethanol recovery?

A: Ethanol has low heat content and is volatile, so it is not suitable to use a multi-effect falling film evaporator.

2. What is the feed temperature of a single-effect falling film evaporator when recovering ethanol?

A: It is recommended to be above 20 ℃, if the low temperature material liquid can add a preheating device before the cloth.

3. How much is the steam pressure in the heating chamber controlled?

A: The steam pressure is controlled within 0.2MPa, and the temperature is within 130 ℃.

4. How to control the steam temperature?

A: By adjusting the steam pressure to adjust the steam temperature, the temperature changes with the pressure.

5. What material is the single effect falling film evaporator, can it be made of 316 material?

A: Hygienic grade 304 material. According to customer needs can be made of 316 material.

6. Is the single-effect falling film evaporator controlled automatically or manually?

A: Manual control. According to customer needs can make automatic control system.

7. Can 200L single effect falling film evaporator be sent by air?

A: After special packaging design, it can be sent by air.


Pre-Sale Service

  1. Provide 24-hour technical consultation and reply;
  2. Provide professional quotation information;
  3. Provide detailed product performance specification;
  4. According to product’s using condition, technicians will offer rationalization proposals to assist clients to select proper product types;
  5. Provide other corollary equipment according to client requirements.

In-Sale Service

  1. With supervision from the source of products, the qualified rate of raw materials entering the factory can reach 100%;
  2. Whole manufacturing process are in strict accordance with promised procedure requirements, product qualified rate can reach100%;
  3. Provide product’s inspection record of key junctures to customers;
  4. Provide production schedule photos to customers at regular intervals;
  5. Package and transport of products are in strictaccordance with the export standard;
  6. Provide transportation schedule information to clients timely.

After-Sale Service

  1. Provide targeted installation video;
  2. Under the premise of correct installation, normal maintenance and using, we guarantee one-year warranty period;
  3. When warranty period has expired, our sold products enjoys lifetime guarantee repair, we only charge cost price for changing product’s standard component and sealing component;
  4. During installation and adjustment period, our after-sale service staff will communicate with customers frequently to know product’s running state in time. Assist customers to install and adjust products until customers are satisfied;
  5. If product has malfunction during operation period, we’ll offer you satisfied answer in time. We’ll reply you within 1 hour and provide solution or send staff to spot within 24 hours after receiving maintenance notification;
  6. Lifelong free technical support. Conduct satisfaction survey and inquiry equipment running condition to clients by telephone or e-mail semiannually from the first day of equipment running, put on records of acquired information;
  7. Provide assistance in solving problems such as equipment damage in the transport.


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