Double-Effect Falling-Film Evaporation Pilot Plant
Categories: Chemical Engineering Manufacturer and SupplierThis unit consists of two falling-film shell-and-tube evaporators and of a shell-and-tube condenser; the first stage is heated by steam, whereas the second stage is heated by the solvent vaporized in...
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Description
This unit consists of two falling-film shell-and-tube evaporators and of a shell-and-tube condenser; the first stage is heated by steam, whereas the second stage is heated by the solvent vaporized in the first stage. The evaporator is fed by a metering pump and it works under vacuum thanks to a liquid-ring vacuum pump. The concentrated product and the vaporized solvent are collected into two glass tanks. The automated version is equipped with 2 PID controllers that enable to control the flow rate of steam reaching the evaporator, the vacuum degree in the system and the level of the first stage, automatically.
TRAINING PROGRAM
This unit enables to deepen the following issues:
• Mass balances
• Energy balances
• Determination of overall heat transfer coefficient
• Optimization of the evaporation process
• Automatic flow, level and vacuum control by PID controller
• Plant supervision by P.C.
TECHNICAL SPECIFICATIONS:
• Framework of AISI 304 stainless steel with castors
• Metering pump with double body of stainless steel AISI316, flow rate of 0-32 l/h, and pneumatic actuator
• Feeding tank of borosilicate glass, with capacity of 25 l
• Tank of borosilicate glass, with capacity of 10 l, for collecting the concentrated product
• Tank of borosilicate glass, with capacity of 10 l, for collecting the condensed solvent
• 2 steam traps of AISI 304 stainless steel
• 2 graduated tanks of borosilicate glass for measuring the condensate, with capacity of 1 l
• Bourdon pressure gauge of AISI 304 stainless steel, with range of 0 to 6 bar
• Bourdon pressure gauge of AISI 304 stainless steel, with range of 0 to 1.6 bar
• Bourdon vacuum gauge of AISI 304 stainless steel, with range of 0 to -1 bar
• 2 falling-film shell-and-tube evaporators of AISI 304 stainless steel, each one with exchange surface of 0.27m2
• Shell-and-tube condenser of AISI 304 stainless steel, with exchange surface of 1.1 m2
• Tube-in-tube heat exchanger of AISI 304 stainless steel
• Electronic first-effect level transmitter, capacitance type, with board-type display
• Pneumatic valve of AISI 316 stainless steel, (Cv = 0.32) for the control of steam flow rate
• Calibrated diaphragm of stainless steel with differential pressure transmitter of AISI 316 stainless steel for measuring the steam flow rate
• 12 thermoresistances Pt 100 with sheath of AISI 316 stainless steel
• 12 board-type electronic temperature indicators
• Flowmeter of glass and steel with range of 25 to 250 l/h
• Liquid-ring vacuum pump provided with air/water separator and solenoid valve for feeding water
• Piping and valves of AISI 304 and AISI 316 stainless steel
• Switchboard IP55, complying with EC conformity mark, including plant synoptic and ELCB
• Emergency button
Besides being provided with all the characteristics, this model also includes the following additional items:
• Residual pressure electronic transmitter of stainless steel and range of 0 to 1000 mbar
• Interface for the connection with a PC included in the switchboard
• Data acquisition software for Windows
Besides being provided with all the characteristics, this model also includes the following additional items:
• Pneumatic valve of AISI 316 stainless steel, Cv = 2.5, for the control of working pressure
• Electronic transmitter of residual pressure, body of AISI 316 stainless steel , range of 0 to 1000 mbar and 4-20 mA output signal
• Microprocessor digital PID controller with serial card
• Supervision software for Windows: it enables to control ON-OFF signals, analog signals coming from PID controller, real-time trend and historical trend
quick overview :
This unit consists of two falling-film shell-and-tube evaporators and of a shell-and-tube condenser; the first stage is heated by steam, whereas the second stage is heated by the solvent vaporized in the first stage. The evaporator is fed by a metering pump and it works under vacuum thanks to a liquid-ring vacuum pump. The concentrated product and the vaporized solvent are collected into two glass tanks. The automated version is equipped with 2 PID controllers that enable to control the flow rate of steam reaching the evaporator, the vacuum degree in the system and the level of the first stage, automatically.
TRAINING PROGRAM
This unit enables to deepen the following issues:
• Mass balances
• Energy balances
• Determination of overall heat transfer coefficient
• Optimization of the evaporation process
• Automatic flow, level and vacuum control by PID controller
• Plant supervision by P.C.
TECHNICAL SPECIFICATIONS:
• Framework of AISI 304 stainless steel with castors
• Metering pump with double body of stainless steel AISI316, flow rate of 0-32 l/h, and pneumatic actuator
• Feeding tank of borosilicate glass, with capacity of 25 l
• Tank of borosilicate glass, with capacity of 10 l, for collecting the concentrated product
• Tank of borosilicate glass, with capacity of 10 l, for collecting the condensed solvent
• 2 steam traps of AISI 304 stainless steel
• 2 graduated tanks of borosilicate glass for measuring the condensate, with capacity of 1 l
• Bourdon pressure gauge of AISI 304 stainless steel, with range of 0 to 6 bar
• Bourdon pressure gauge of AISI 304 stainless steel, with range of 0 to 1.6 bar
• Bourdon vacuum gauge of AISI 304 stainless steel, with range of 0 to -1 bar
• 2 falling-film shell-and-tube evaporators of AISI 304 stainless steel, each one with exchange surface of 0.27m2
• Shell-and-tube condenser of AISI 304 stainless steel, with exchange surface of 1.1 m2
• Tube-in-tube heat exchanger of AISI 304 stainless steel
• Electronic first-effect level transmitter, capacitance type, with board-type display
• Pneumatic valve of AISI 316 stainless steel, (Cv = 0.32) for the control of steam flow rate
• Calibrated diaphragm of stainless steel with differential pressure transmitter of AISI 316 stainless steel for measuring the steam flow rate
• 12 thermoresistances Pt 100 with sheath of AISI 316 stainless steel
• 12 board-type electronic temperature indicators
• Flowmeter of glass and steel with range of 25 to 250 l/h
• Liquid-ring vacuum pump provided with air/water separator and solenoid valve for feeding water
• Piping and valves of AISI 304 and AISI 316 stainless steel
• Switchboard IP55, complying with EC conformity mark, including plant synoptic and ELCB
• Emergency button
Besides being provided with all the characteristics, this model also includes the following additional items:
• Residual pressure electronic transmitter of stainless steel and range of 0 to 1000 mbar
• Interface for the connection with a PC included in the switchboard
• Data acquisition software for Windows
Besides being provided with all the characteristics, this model also includes the following additional items:
• Pneumatic valve of AISI 316 stainless steel, Cv = 2.5, for the control of working pressure
• Electronic transmitter of residual pressure, body of AISI 316 stainless steel , range of 0 to 1000 mbar and 4-20 mA output signal
• Microprocessor digital PID controller with serial card
• Supervision software for Windows: it enables to control ON-OFF signals, analog signals coming from PID controller, real-time trend and historical trend
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