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Controlling and regulating continuous processes

Controlling and regulating continuous processes

Product Code:EPP 501


Need more Info? (514) 354-2511 - 1-800-463-4363

This unit covers the following areas:
  • REGULATING
      • Vacuum regulation
      • Flow rate regulation
      • Temperature regulation
      • Level regulation
    • Each regulation loop consists of :
      • One sensor
      • One actuator
      • One controller
      • One perturbation
  • CONTROLS
    • Manual controls
    • Sequential controls
    • On/off controls
  • COMMANDS
    • Hand operated
    • Computerized control
  • OPERATING MODE
    Each regulation loop can be adjusted by hand or by computer. The whole process is a closed circuit, without any consumption of raw material.

 

DIMENSIONS 
  • Length: 2500 mm
  • Width: 800 mm
  • Height: 2000 mm
  • Weight: 300 kg

 

Applications
  • PID regulation
  • Manual regulation
  • On/off control
  • Control of industrial components
  • PC control
  • Continuous process
  • Study of control instruments
  • Indicators – sensors – converters – transducers - controllers

 

Specifications



DESCRIPTION OF THE MAIN COMPONENTS

1- Heating tube – evaporator (borosilicate glass)
2- Condenser (borosilicate glass)
3- Light phase receiver : water
4- Heavy phase receiver : glycerine
5- 5 L-supply tank (polyethylene)
6- Electric preheater
7- Supply pumps 2 exchangeable centrifugal pumps: maintenance with turbine flow meter (0-10 L/h)
8- 3 receivers (borosilicate glass)

  • One for the heavy phase on the bot tom condenser : 0.5 L
  • One for the light phase af ter the condenser : 0.5 L
  • One for the final receipt with the level sensors: 0.5 L

9- Re-circulating pump ( to the tank)

  • Centrifugal pump with a water inlet connection piece

10- Two vacuum pumps

  • 3.9 m3/h – P=0.37 kW
  • 0.36 m3 /h for the final receipt

11- Vacuum regulat ion valve (stainless steel)
12- Six All-or-Nothing brass elect ro-valves for the level regulation

HEATING
  • Electric resistance heating
  • Temperature controller
  • Pt 100 in the heating tube: to control
  • Stainless steel perturbation coil, supplied with network water

COLD WATER COOLING UNIT
  • Connected to the water network
  • For the condenser (2)
  • Rotameter
  • Control valve
  • For the heating tube coil
  • Rotameter
  • Control valve

VACUUM UNIT
  • Vacuum pump
  • Control valve (12)
  • Pressure sensor
  • PID controller
  • 6 Electro-valves
  • The unit is used under atmospheric or reduced pressure
  • The vacuum pump is connected to the vacuum network. Connection to outside air is regulated by the control valve

SUPPLYING UNIT
  • Tank containing a water/glycerine mixture. Capacity: 5 L
  • Centrifugal pump (with a spare pump for maintenance), the flow rate can be adjusted through a PC or locally.
  • Frequency control
  • Electric preheater
  • Injection into the heating tube

SEPARATION UNIT
  • In the heating tube (1), the mixture is heated by an electric resistance
  • The water phase evaporates at a temperature corresponding to the pressure in the heating tube.

4 CONTROL PANELS

Each one:
  • Is composed of all the elements relating to the security and to the protection of goods and people
  • Allows control of every component in the unit, manually or individually
  • Allows control of the equipment by PLC
  • Includes the interfaces and the software which allow working with a PC (not supplied)
  • Condensing into the condenser, which receives cold water for the network
  • Arrival in the recipient
  • The electro-valves and the level detectors control every stage
  • The heavy phase remains in liquid phase and leaves the heating tube by its lateral weir, towards its receiver

RETURN TO THE TANK
  • Centrifugal pump controlled by the levels in the receivers (3-4) and by the solenoid valves
  • Cooling heat exchanger
  • Return to the tank (1)

INSTRUMENTS
  • Temperature

Temperature sensors

  • liquid - heating tube
  • vapour column
Flow rate
  • Rotameter
    • cold water flow rate – exchanger (5)
    • turbine flow meter for the supply
Level
  • Detectors of:
    • level in the heating tube
    • level in the receiver(high-low level)
Pressure
  • Pressure in the unit connected to the vacuum regulation.

AUTOMATION
  • Industrial programmable controller
  • 2 All-or-Nothing digital inlets (high and low level)
  • 8 All-or-Nothing digital outlets (6 electro-valves, 1 pump and 1 vacuum pump)
  • 1 digital outlet for connection to a PC permits the regulation of the level in the final receiver

DISPOSITION OF THE UNIT TEMPERATURE
  • Control panel with synoptic
  • PID temperature controller with temperature indicator
  • Electric resistance: ON/OFF (only runs when the resistance is immersed)
  • Perturbator: a stainless steel coil with a manual adjustment valve

PRESSURE
  • Control panel with synoptic
  • Piezoresistive sensor: –1/0bar
  • PID temperature controller with pressure indicator
  • Vacuum pump: ON/OFF
  • Perturbator: manual vacuum-breaker valve

FLOW RATE
  • Control panel with synoptic
  • Supplying pump: ON/OFF
  • Turbine flow meter: 20-200 ml/min with indicator
  • Frequency variator
  • PID controller with a RS232 outlet for driving the PC
  • PC (not included)
  • Supervision software (under Windows 2000 or XP)
  • Perturbator: manual vacuum-breaker under the flow meter

LEVEL
  • Control panel with synoptic
  • Industrial automate
  • Recirculating pump: ON/OFF
  • Control of the 6 electrovalves of the centrifugal pump and the little vacuum pump with data from high and low level sensors of the final receipt.
  • Permits the work by simulating: with synoptic and DIN plugs for the connection.

 

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