Flow Level Pressure Temperature Control Bench

Flow Level Pressure Temperature Control Bench

• Control of water levels in loop.
• Control of water flow by winnowing.
• Control of water pressure by winnowing.
• Control of water temperature, (piloting resistive charges per static power unit).
• Control of water temperature with cascade on the flow.

Teaching Objectives of Flow Level Pressure Temperature Control Bench

• Study of the closed loop syste.
• Stability conditions.
• Response to a level instruction.
• Influence of the parameters of control and the algorithm setting (TOR, P, PI, or PID) on the results.
• Study of an open loop system.
• Study of the characteristic curves of the system.
• Study of a cascade control system

Technical Specifications of Flow Level Pressure Temperature Control Bench

• A supply tank of 50 liters out of PVC, with taping and overflow.
• A Altuglass column high 1200 mm, diam. 200 mm with overflow and drain tap.
• A centrifugal pump, 380 V three phases.
• A master regulator with universal input, output 4-20 mA and a slave regulator, regulation algorithm P, PI, PID, PD + MR. function auto/manual – auto-adaptative with double display measure/instruction.
• Proportional pneumatic valve, with positioning.
• I/P Converter.
• Pressure control by pressure transmitter (output 4-20 mA).
• Electronic flowmeter (output 4-20 mA).
• 4 rotary flowmeters with tap.
• Level measurement by pressure transmitter (4-20 mA) placed at the bottom of an Altuglass water column with overflow and drain valve.
• Immersion heater with thermostat.
• 2 temperature probes Pt 100 ohms with transmitter 4/20 mA.
• An electric cabinet including: the regulators, the protection of the pump and its command Wiring of the closed loop thanks safe jacks and wires.
• Mounted on a stainless steel frame with aluminium nut.
• 5 Process are possible.
• 1 - level control.
• Actuator : pneumatic valve.
• Sensor : pressure transmitter.
• Disruption : leak on the pipe , leak under the column.
• 2 – Flow control.
• Actuator : pneumatic valve.
• Sensor : Electronic flowmeter.
• Disruption : leak on the pipe

• Actuator: pneumatic valve.
• Sensor: pressure transmitter.
• Disruption: leak on the pipe.

• Actuator: immersion heater.
• Sensor: temperature probe.
• Disruption: by provision of cold water.

• Actuator: pneumatic valve.
• Sensor: temperature probe at the output of the heater and electronic flowmeter.
• Disruption: leak on the pipe, variation of the heater’s power

Dimensions and weight

• 1500 x 800 x 2100 mm.
• Weight: about 150 kg.

Essential requirements

• Electric power supply: 7 kW 380 V triphase.
• Compressed air: 6Nl/h, 6 bars.

Services nécessaires

• Consommation 0,37 kW – 220 V monophasé.
• Documentation pédagogique et technique.