NTC-16.73 “Automatics of heat and gas supply and ventilation systems”

Br0.00

The laboratory stand is intended as the training equipment at secondary specialized colleges and higher educational establishments for laboratory classes to study automatics of heat and gas supply and ventilation elements, methods to regulate and monitor temperatures, pressure and gas flow.

 
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The stand is designed as a heat and gas supply system installation. The elements are mounted on a frame made of aluminium structural shape (movable mounting platform).

The movable platform accommodates main equipment:

  • centrifugal fan;
  • tachogenerator;
  • chanel electrical heater;
  • power control;
  • electric motor of a flap with analogue control;
  • microprocessor-based measuring system.

Air ducts are designed as circular 100 mm diameter cross-section pipe made of PVC, circular transparent 100 mm diameter pipe with an iris diaphragm. The ducts are mounted on the front side of the mounting frame.

Air is used as operating media of the stand.

The microprocessed-based measuring and control system allows to register static and dynamic pressure in metering section, rotation speed of the fan impellers, voltage, current, active power of the fan electric motor, air temperature in the duct and to control the fan or the flap by chosen as regulation parameter pressure, flow or temperature. Differential pressure transducers are used to measure static and dynamic pressure. Pressure sensors are connected to air ducts via a system of tubes. Digital sensor and resistance thermometer with thermo transducers with analogue output are used to measure the temperature. Industrial inverter is used to control the fan.

Microprocessor-based system includes the following units:

  • inlet unit;
  • power supply unit;
  • pressure measuring and tachogenerator unit;
  • power measuring unit;  
  • pressure and temperature measuring unit;
  • operation panel.

The stand is accompanied with a set of teaching materials and technical documentation intended for the teaching staff.

Experiments provided

  1. Static and dynamic characteristics of a fan.
  2. Characteristics of automated flap.
  3. Static and dynamic characteristics of a heater.
  4. Calibration of measuring diaphragm.
  5. Pressure adjustment by fan control.
  6. Flow adjustment by fan control.
  7. Temperature adjustment by fan control.
  8. Flow adjustment by flap control.
  9. Pressure adjustment by flap control.
  10. Temperature adjustment by flap control.
  11. Temperature adjustment by heater control.

Technical specifications

Power supply ~220 V, 50Hz (one phase 220V, 50 Hz)
Consumed power, kW, not more than 1,7
Overall dimensions, not more than:
width, mm 2020
height, mm 1820
depth, mm 770
Weight, kg, not more than 53

Scope of delivery

  • training laboratory stand – 1 pc.;
  • passport – 1 pc.;
  • supplementary materials in electronic format – 1 pc.

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