Application: The equipment is especially suitable for low-temperature continuous evaporation and concentration of heat-sensitive, viscous, and foaming materials, such as fermentation broth, clarified fruit juice, glucose, fresh milk, amino acids, xylitol, starch sugar, maltodextrin, corn steep liquor, etc. It is also widely used for evaporation and concentration of water-based or organic solvent solutions in pharmaceutical, food, chemical, light industry, and other industries.
Product Specification: 0.2-40T/H, customized according to production capacity requirements.
Working Principle: The material enters from the top of the heater and is evenly distributed into each heat exchange tube inside the heater through the liquid distributor. Under the combined action of gravity, vacuum suction, and airflow, the material flows downward along the inner wall of the heat exchange tubes in the form of a uniform film. During this process, it is heated and vaporized by the heating medium (boiler steam) in the shell side. The generated vapor and liquid phase enter the separator together, where gas-liquid separation takes place. The vapor rises into the condenser and is condensed into liquid (single-effect operation), then collected by the condensate tank. The separated liquid phase is discharged from the bottom of the separator to obtain the concentrated solution. In multi-effect evaporators, the secondary steam generated by the first-effect heater can enter the next-effect heater as a heating medium, allowing heat energy to be reused and reducing energy consumption.
The complete falling film evaporator system mainly includes heaters, separators, condensers, condensate tanks, condensate pumps, vacuum pumps, material pumps, equipment platforms, electrical control systems, piping systems, and other components. To reduce steam consumption, the equipment is available in single-effect, double-effect, triple-effect, and multi-effect configurations.
• Heater: Used to heat the material and achieve evaporation and concentration.
• Separator: Used to separate secondary steam generated after heating from the concentrated liquid.
• Condenser: Used to condense secondary steam into liquid for recovery and reuse.
• Condensate Tank: Used for collecting and buffering condensed water.
• Condensate Pump: Used to discharge liquid from the condensate tank and transport it to the collection tank or discharge system.
• Vacuum Pump: Used to ensure the entire system operates under vacuum conditions.
• Material Pump: Multiple pumps may be installed for feeding, transferring, discharging, and circulating processed materials.
• Equipment Platform: Mainly used to support heaters, separators, condensers, and other components, while providing space for observation, operation, and maintenance.
• Electrical Control System: Used by operators to control pumps and other electrical components within the system.
• Piping System: Includes internal steam pipelines, material pipelines, condensate pipelines, vacuum pipelines, and other piping systems.
Evaporation Effect Number | Single Effect | Double Effect | Double Effect | Double Effect or Triple Effect |
Evaporation Capacity (Water) (T/H) | 0.2-2 | 1.0-5 | 1.5-20 | 3-40 |
Feed Concentration | 8-12% |
Discharge Concentration | 35-70% |
Steam Pressure (MPa) | 0.05-0.1 | 0.4-0.7 |
Steam Consumption (KG/H) | Depends on process parameters and number of effects |
Evaporation Temperature | 46-90℃ |
Heating Temperature | 85-120℃ |
Technical Features:
1. Short material heating time, suitable for processing heat-sensitive materials. With continuous feeding and discharging, the material can reach the required concentration after passing through the equipment once, and the heating time is no more than 3 minutes.
2. Compact structure with integrated production processes. The equipment combines material preheating and concentration processes into one continuous operation, reducing the need for additional preheating equipment, minimizing the risk of product contamination, and reducing installation space requirements.
3. Suitable for processing high-concentration and high-viscosity materials.
4. Saves heating steam consumption. The equipment can operate with a gauge pressure of 4.5-5 kgf.
5. Equipped with CIP cleaning pipelines inside the equipment, enabling in-place cleaning with convenient operation and no dead corners.
6. High concentration ratio. The falling film evaporation design provides a high heat transfer coefficient, allowing high-viscosity materials to flow and evaporate easily with a shorter concentration time.
7. Low steam consumption. The system can be designed with an injection-type thermocompressor pump for higher efficiency and energy saving.
8. Gentle material heating. The short heating time and low evaporation temperature make it suitable for concentrating heat-sensitive materials.
9. Special design allows easy switching between different evaporation effects to meet the production requirements of different products.
10. Continuous feeding and discharging operation. The material reaches the required concentration after passing through the equipment once.
11. All power control is achieved through the control cabinet, and an automatic control system can be installed according to customer requirements.
12. Uses a dedicated concentration pump with reliable sealing, stable performance, and smooth operation.
Packaging: Foam film or protective wrapping film. Wooden pallets or wooden frames are available; please confirm according to actual requirements.
Control: The system can be operated through button control or PLC integrated control.
Our company provides 1-40 tons/hour double-effect falling film evaporators and triple-effect falling film evaporators for continuous vacuum concentration applications.
For industries such as dairy processing, juice concentration, chemical solutions, and pharmaceutical intermediates, evaporation concentration equipment is a familiar part of production. Especially for companies that need to reduce energy consumption and increase production capacity while maintaining product quality, the evaporation system has become a key process. The three-effect falling film evaporator is a mature energy-saving concentration system developed to meet these requirements.
It does not simply increase heating intensity. Instead, it improves steam utilization efficiency through three-stage cascading heat utilization, achieving stable concentration performance in continuous production.
What Is a Three-Effect Falling Film Evaporator Used For
Simply put, it is a concentration system consisting of three evaporating units connected in series. Through multi-stage steam utilization, it continuously evaporates and concentrates liquid materials.
Common applications include:
• Dairy concentration (whey, milk-based liquids)
• Juice and fruit pulp concentration
• Syrup and high-concentration sugar solutions
• Plant protein liquid concentration
• Biological fermentation liquid treatment
• Chemical solution concentration
• Pharmaceutical intermediate concentration
The core objective is clear: reducing steam consumption while improving concentration efficiency.
What Is the Falling Film Evaporation Structure
The core principle of falling film evaporation is "film-forming flow".
After entering from the top of the tube bundle, the liquid forms a thin film along the inner wall of the tubes, flows downward, and evaporates under heating.
This structure has several advantages:
• High utilization of heat transfer area
• Short material residence time
• Reduced risk of local overheating
• Suitable for heat-sensitive materials
Compared with traditional boiling evaporation, it has less impact on product quality.
How Does the "Three-Effect" Structure Work
The so-called three-effect structure means that three evaporation systems operate in series:
• The first effect uses fresh steam for heating
• The second effect uses the secondary steam generated by the first effect
• The third effect continues utilizing the residual heat steam from the previous stages
Through step-by-step heat transfer, steam energy is repeatedly utilized.
The results are:
• Lower steam consumption
• Reduced operating costs
• Improved energy efficiency
It is especially suitable for factories requiring long-term continuous operation.
Working Process of Three-Effect Falling Film Evaporator
The whole operating process can be divided into several stages:
Raw material enters the preheating system → enters the first-effect evaporator → forms a falling film for evaporation → secondary steam enters the second effect → heat energy is reused → the third effect continues concentration → final product discharge → condensate water recovery
The key feature is "multi-stage heat energy recycling".
Main Components of the Equipment
A standard three-effect falling film evaporator usually includes:
• Heating chamber: Provides the core heat exchange area
• Falling film tube bundle: Enables film evaporation
• Separator: Completes gas-liquid separation
• Vacuum system: Lowers boiling point and improves efficiency
• Condensation system: Recovers secondary steam
• Feeding system: Controls stable flow rate
• CIP cleaning system: Provides online cleaning and hygiene assurance
• Control system: Automatically adjusts temperature, pressure, and flow
The overall structure focuses on three key functions: evaporation, separation, and recovery.
What Is a Falling Film Evaporation Structure
The core principle of falling film evaporation is "film flow formation".
After entering from the top of the tube bundle, the liquid material forms a thin film along the inner wall of the tubes, flows downward, and evaporates under heating at the same time.
This evaporation method has several advantages:
High heat transfer efficiency
Short material residence time
Less risk of local overheating
Suitable for heat-sensitive materials
Compared with traditional boiling evaporation, it has less impact on product quality.
Working Principle of Three Effect Structure
The so-called three effect structure means that three evaporation units operate in series:
1. The first effect uses fresh steam as the heating source.
2. The second effect uses the secondary steam generated from the first effect.
3. The third effect continues to utilize the residual heat steam from the previous stages.
Through step-by-step heat transfer, steam energy is reused multiple times.
The results include:
Lower steam consumption
Reduced operating costs
Higher energy efficiency
It is suitable for factories requiring long-term continuous production.
Working Process of Three Effect Falling Film Evaporator
The entire operating process can be divided into several stages:
Raw materials enter the preheating system → enter the first effect evaporator → form falling film evaporation → secondary steam enters the second effect → heat energy is reused → the third effect continues concentration → final product discharge → condensate water recovery
The core feature is "multi-stage heat energy recycling".
Main Components of the Equipment
A standard Three Effect Falling Film Evaporator usually includes:
Heating chamber: Provides the core heat exchange area
Falling film tube bundle: Realizes film evaporation
Separator: Completes gas-liquid separation
Vacuum system: Reduces boiling point and improves efficiency
Condensation system: Recovers secondary steam
Feeding system: Controls stable material flow
CIP cleaning system: Provides online cleaning and ensures hygiene
Control system: Automatically adjusts temperature, pressure, and flow rate
The overall structure focuses on "evaporation + separation + recovery".
Why More Factories Choose Three Effect Structure
In actual production, the evaporation process usually accounts for a relatively high proportion of energy consumption. The three effect structure mainly solves the energy consumption problem.
Main advantages include:
Lower steam consumption
More controllable operating costs
Suitable for large-scale continuous production
Higher heat utilization efficiency
Wide application range
Especially in dairy and juice industries, the energy-saving effect becomes more obvious during long-term operation.
Many professionals involved in dairy processing, juice concentration, chemical solutions, and pharmaceutical intermediates are familiar with evaporation and concentration equipment. For companies that need to reduce energy consumption while improving production capacity without affecting product quality, an evaporation system is an essential part of the production process. The triple-effect falling film evaporator is a mature energy-saving concentration solution developed to meet these requirements.
It does not simply increase heating intensity. Instead, it improves steam utilization efficiency through three-stage heat energy cascading utilization, achieving stable concentration during continuous production.
What Is a Triple Effect Falling Film Evaporator Used For
Simply speaking, it is a concentration system composed of three evaporation units connected in series. Through multi-stage steam utilization, it continuously evaporates and concentrates liquid materials.
Common applications include:
• Dairy concentration (whey, milk-based liquids)
• Juice and fruit pulp concentration
• Syrup and high-concentration sugar solutions
• Plant protein liquid concentration
• Biological fermentation liquid treatment
• Chemical solution concentration
• Pharmaceutical intermediate concentration
The core goal is clear: reduce steam consumption while improving concentration efficiency.
What Is a Falling Film Evaporation Structure
The core principle of falling film evaporation is "film flow formation".
After the liquid enters from the top of the tube bundle, it forms a thin film along the tube wall and flows downward while being heated and evaporated.
This method has several advantages:
• High heat transfer area utilization
• Short material residence time
• Reduced risk of local overheating
• Suitable for heat-sensitive materials
Compared with traditional boiling evaporation, it has less impact on product quality.
Working Principle of the Triple Effect Structure
The so-called triple effect means that three evaporation systems operate in series:
• The first effect uses fresh steam for heating
• The second effect uses the secondary steam generated by the first effect
• The third effect continues utilizing the remaining heat energy from the previous stages
Through step-by-step energy transfer, steam heat is repeatedly utilized.
The results are:
• Significantly reduced steam consumption
• Lower operating costs
• Improved energy efficiency
It is especially suitable for factories requiring long-term continuous operation.
Working Process of Triple Effect Falling Film Evaporator
The whole operation process can be divided into several stages:
Raw material enters the preheating system → enters the first-effect evaporator → forms falling film evaporation → secondary steam enters the second effect → heat energy is reused → the third effect continues concentration → final discharge → condensate water recovery
The core feature is "multi-stage heat energy recycling".
Main Components of the Equipment
A standard triple effect falling film evaporator usually includes:
• Heating chamber: Provides the core heat exchange area
• Falling film tube bundle: Achieves film evaporation
• Separator: Completes gas-liquid separation
• Vacuum system: Lowers boiling point and improves efficiency
• Condensation system: Recovers secondary steam
• Feeding system: Controls stable flow rate
• CIP cleaning system: Provides online cleaning and hygiene protection
• Control system: Automatically adjusts temperature, pressure, and flow rate
The overall structure focuses on "evaporation + separation + recovery".
Why More Factories Choose Triple Effect Structures
In actual production, the evaporation process often accounts for a relatively high proportion of energy consumption. The triple effect structure mainly solves the energy consumption problem.
Main advantages include:
• Lower steam consumption
• More controllable operating costs
• Suitable for large-scale continuous production
• Higher heat utilization efficiency
• Wide application range
Especially in dairy and juice industries, the energy-saving effect becomes more obvious during long-term operation.
Many companies engaged in dairy processing, juice concentration, chemical solutions, and pharmaceutical intermediates are familiar with evaporation concentration equipment. Especially for enterprises that need to reduce energy consumption while maintaining product quality and increasing production capacity, evaporation systems have become an essential part of the production process. The triple-effect falling film evaporator is a mature energy-saving concentration equipment developed to meet these requirements.
It does not simply increase heating intensity. Instead, it improves steam utilization efficiency through three-stage cascade heat utilization, achieving stable concentration during continuous production.
What Is a Triple Effect Falling Film Evaporator Used For?
Simply speaking, it is a concentration system composed of three evaporation units connected in series. Through multi-stage steam utilization, it continuously evaporates and concentrates liquid materials.
Common applications include:
• Dairy concentration (whey, milk-based liquids)
• Juice and fruit pulp concentration
• Syrup and high-concentration sugar solutions
• Plant protein liquid concentration
• Biological fermentation liquid treatment
• Chemical solution concentration
• Pharmaceutical intermediate concentration
The core goal is clear: reduce steam consumption while improving concentration efficiency.
What Is the Falling Film Evaporation Structure?
The core principle of falling film evaporation is "film formation and flow".
After entering from the top of the tube bundle, the liquid forms a thin film along the inner wall of the tubes, flows downward, and evaporates under heating.
This method has several characteristics:
• High utilization rate of heat transfer area
• Short material heating time
• Less possibility of local overheating
• Suitable for heat-sensitive materials
Compared with traditional boiling evaporation, it has less impact on product quality.
Working Principle of the "Triple Effect" Structure
The triple effect structure means three evaporation systems operate in series:
• The first effect uses fresh steam for heating
• The second effect uses secondary steam generated by the first effect
• The third effect continues utilizing the residual heat steam from the previous stages
Through step-by-step energy transfer, steam heat is repeatedly utilized.
The results are:
• Significantly reduced steam consumption
• Lower operating costs
• More energy-efficient system operation
It is especially suitable for factories requiring long-term continuous operation.
Working Process of Triple Effect Falling Film Evaporator
The whole operation process can be divided into several stages:
Raw material enters the preheating system → enters the first-effect evaporator → forms a falling film for evaporation → secondary steam enters the second effect → heat energy is reused → the third effect continues concentration → final product discharge → condensate water recovery.
The key feature is "multi-stage heat energy recycling".
Main Components of the Equipment
A standard triple effect falling film evaporator usually includes:
• Heating chamber: Provides the core heat exchange area
• Falling film tube bundle: Achieves film evaporation
• Separator: Completes gas-liquid separation
• Vacuum system: Lowers boiling point and improves efficiency
• Condensation system: Recovers secondary steam
• Feeding system: Maintains stable flow control
• CIP cleaning system: Ensures hygienic online cleaning
• Control system: Automatically adjusts temperature, pressure, and flow
The whole structure is designed around three core functions: evaporation, separation, and recovery.
The three-effect falling film evaporator is a relatively mature energy-saving concentration system widely used in industries such as dairy processing, juice concentration, chemical solutions, and pharmaceutical intermediates. For companies that need to reduce energy consumption while maintaining product quality and increasing production capacity, evaporation systems have become a key part of the production process.
It is not simply about increasing heating intensity. Instead, it improves steam utilization efficiency through three-stage heat energy cascade utilization, achieving stable concentration performance during continuous production.
What Is a Three-Effect Falling Film Evaporator Used For?
Simply speaking, it is a concentration system composed of three evaporating units connected in series. Through multi-stage steam utilization, it continuously evaporates and concentrates liquid materials.
Common applications include:
• Dairy concentration (whey, milk-based liquids)
• Fruit juice and fruit pulp concentration
• Syrup and high-concentration sugar solutions
• Plant protein liquid concentration
• Biological fermentation liquid treatment
• Chemical solution concentration
• Pharmaceutical intermediate concentration
The core objective is clear: reducing steam consumption while improving concentration efficiency.
What Is the Falling Film Evaporation Structure?
The core principle of falling film evaporation is "film-forming flow".
After entering from the top of the tube bundle, the liquid forms a thin film along the inner wall of the tubes and flows downward while being heated and evaporated.
This evaporation method has several characteristics:
• High utilization of heat transfer area
• Short material heating time
• Reduced risk of local overheating
• Suitable for heat-sensitive materials
Compared with traditional boiling evaporation, it has less impact on product quality.
Working Principle of the "Three-Effect" Structure
The three-effect structure means three evaporation systems operate in series:
• The first effect uses fresh steam for heating
• The second effect uses secondary steam generated from the first effect
• The third effect continues utilizing residual heat steam from the previous stages
Through this step-by-step transfer process, steam energy is reused multiple times.
The results are:
• Significantly reduced steam consumption
• Lower operating costs
• More energy-efficient system operation
It is especially suitable for factories requiring long-term continuous operation.
Working Process of Three-Effect Falling Film Evaporator
The entire operation process can be divided into several stages:
Raw materials enter the preheating system → enter the first-effect evaporator → form a falling film for evaporation → secondary steam enters the second effect → heat energy is reused → the third effect continues concentration → final product discharge → condensate recovery.
The key feature is "multi-stage heat energy recycling".
What Is a Three-Effect Falling Film Evaporator
A three-effect falling film evaporator is a continuous concentration system composed of three evaporation units connected in series. Through multi-stage steam utilization, it continuously evaporates and concentrates liquid materials.
Common applications include:
Dairy concentration (whey, milk-based liquids)
Fruit juice and fruit pulp concentration
Syrup and high-concentration sugar solutions
Plant protein liquid concentration
Biological fermentation liquid treatment
Chemical solution concentration
Pharmaceutical intermediate concentration
The core goal is clear: reduce steam consumption while improving concentration efficiency.
What Is a Falling Film Evaporation Structure
The core principle of falling film evaporation is "film-forming flow".
After entering from the top of the tube bundle, the liquid forms a thin film along the inner wall of the tubes, flows downward, and evaporates under heating.
This method has several characteristics:
High utilization efficiency of heat transfer area
Short material heating time
Less possibility of local overheating
Suitable for heat-sensitive materials
Compared with traditional boiling evaporation, it has less impact on product quality.
Working Principle of the Three-Effect Structure
The so-called three-effect structure means that three evaporation systems operate in series:
The first effect uses fresh steam for heating
The second effect uses secondary steam generated by the first effect
The third effect continues to utilize residual heat steam from the previous stages
Through this step-by-step heat transfer process, steam energy is reused multiple times.
The results are:
Lower steam consumption
Lower operating costs
Higher energy efficiency
It is suitable for factories requiring long-term continuous operation.
Working Process of Three-Effect Falling Film Evaporator
The entire operating process can be divided into several stages:
Raw material enters the preheating system → enters the first-effect evaporator → forms falling film evaporation → secondary steam enters the second effect → heat energy is reused → the third effect continues concentration → final product discharge → condensate water recovery
The core feature is "multi-stage heat energy recycling".
Main Components of the Equipment
A standard three-effect falling film evaporator usually includes:
Heating chamber: provides the core heat exchange area
Falling film tube bundle: realizes film evaporation
Separator: completes gas-liquid separation
Vacuum system: reduces boiling point and improves efficiency
Condensation system: recovers secondary steam
Feeding system: controls stable flow rate
CIP cleaning system: ensures online cleaning and hygiene
Control system: automatically adjusts temperature, pressure, and flow
The whole structure is designed around "evaporation + separation + recovery".
Why More Factories Choose Three-Effect Structures
In actual production, the evaporation process usually accounts for a relatively high proportion of energy consumption. The three-effect structure mainly solves the energy consumption problem.
Main advantages include:
Lower steam consumption
More controllable operating costs
Suitable for large-scale continuous production
Higher heat utilization efficiency
Wide range of applications
Especially in dairy and juice industries, the energy-saving effect becomes more obvious during long-term operation.
Key Factors to Consider When Selecting Equipment
Whether the equipment is suitable directly affects the later operating efficiency and production stability.
The following factors should be considered:
• Whether the material characteristics are suitable
Viscosity, heat sensitivity, and scaling tendency will all affect evaporation performance.
• Whether the evaporation capacity matches the production requirements
The equipment should not be selected only based on theoretical parameters. Actual production conditions should also be considered.
• Stability of the vacuum system
The vacuum level directly affects evaporation temperature and concentration efficiency.
• Whether the heat exchange tube design is reasonable
It affects scaling speed, heat transfer efficiency, and cleaning difficulty.
• Automation control level
It influences operation stability and labor cost control.
Common Problems During Actual Operation
During actual operation, some common problems may occur:
• Scaling inside heat exchange tubes affecting evaporation efficiency
• Vacuum fluctuations causing unstable concentration results
• Uneven feeding conditions
• Excessive foam affecting separation performance
• Reduced condensation efficiency
• Increased energy consumption
Most of these problems are not caused by the equipment itself, but by improper process control or insufficient maintenance.
Key Factors Affecting Evaporation Performance
A three-effect falling film evaporator is not an independent machine, but a complete system that requires coordinated operation.
The main influencing factors include:
• Feed concentration
• Flow stability
• Steam pressure
• Vacuum control
• Material viscosity
• Heat transfer efficiency
• Equipment cleanliness
Any fluctuation in one part of the system may affect the final concentration performance.
Industries Suitable for Three-Effect Falling Film Evaporator
From practical applications, the equipment has a wide range of uses:
• Dairy processing enterprises
• Juice and beverage manufacturers
• Food additive factories
• Biological fermentation industries
• Pharmaceutical intermediate manufacturers
• Chemical solution processing companies
It is especially suitable for applications requiring "efficient continuous concentration with energy-saving control".
Importance of the Commissioning Stage
Many evaporators may not achieve the expected performance immediately after installation, but operation becomes more stable after proper commissioning.
Common parameters that need optimization include:
• Steam pressure distribution
• Vacuum level control
• Feed flow rate
• Concentration ratio
• Condensation system efficiency
If these parameters are not properly matched, it is difficult to achieve the designed performance of the equipment.
Daily Maintenance Requirements
For evaporation equipment operating continuously for a long time, maintenance is very important.
Important inspection items include:
• Whether heat exchange tubes are scaled
• Whether the vacuum system remains stable
• Whether sealing components are aging
• Whether CIP cleaning is complete
• Whether sensors are accurate
• Whether the condenser is blocked
Insufficient maintenance will directly affect energy consumption and operation stability.
Industry Development Trends
At present, three-effect falling film evaporators are developing toward several important directions:
• Higher heat energy utilization efficiency
• Lower steam consumption
• More intelligent vacuum control
• Higher automation level
• Easier-to-clean structural design
The overall trend is upgrading from "basic operation capability" to "high-efficiency, energy-saving, and stable operation".
Practical Suggestions for Equipment Selection
If you are planning to purchase a three-effect falling film evaporator, the following aspects should be considered:
• Whether the material is heat-sensitive
• Whether production capacity is stable
• Energy consumption control requirements
• Cleaning and maintenance conditions
• Future production expansion possibilities
Clarifying these factors in advance can reduce operational risks during later production.
A three-effect falling film evaporator is a key piece of equipment for energy control and efficiency balance in industrial liquid processing systems.
It affects not only the concentration performance, but also overall production costs, product stability, and continuous operation capability.
When selecting equipment, the focus should not only be on the equipment size, but also on heat utilization efficiency, vacuum system stability, and whether the equipment truly matches the material characteristics.
By clarifying these factors, future production can achieve more stable operation and better cost control.
