FIELD: subway tunnel venting. SUBSTANCE: device has pressure matching unit. Pressure set up unit, pressure gage and impeller blade position sensor installed at fan output are connected to the first input of the matching unit. Outputs of the gage and sensor are connected to the second and third inputs of pressure matching unit. Fan shaft rotation frequency sensor is connected to the fan input. Electromagnetic clutch control unit, power supply unit combined with gradual start-up module are provided. Braking unit is made in the form of reverse power supply unit. Inputs of the above units are connected to pressure matching unit outputs. Outputs of power supply unit and braking unit are intended to be connected to electric motor. Outlets of electromagnetic clutch control unit are intended for connecting to the electromagnetic clutch. Output of fan shaft rotation frequency sensor is connected to the forth input of pressure matching unit. EFFECT: higher efficiency. 2 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR CONTROL OVER OPERATION MODE OF VENTILATING INSTALLATION | 2008 |
|
RU2402683C2 |
| DEVICE FOR OPERATIONAL CONTROL OF VENTILATION SETUP | 1998 |
|
RU2146331C1 |
| DEVICE FOR CONTROLLING OPERATING CONDITIONS OF BLOWER UNIT | 0 |
|
SU1413248A1 |
| 0 |
|
SU475455A1 | |
| APPARATUS FOR CONTROLLING THE OPERATING DUTY OF FAN WITH RUN-ROTATABLE BLADES | 0 |
|
SU1122833A1 |
| ARRANGEMENT FOR CONTROLLING FAN UNIT | 0 |
|
SU1472693A1 |
| APPARATUS FOR CONTROLLING OPERATION MODE OF VENTILATION SYSTEM | 1996 |
|
RU2129688C1 |
| DEVICE FOR PRODUCTION OF DOUBLE PLATE BLADES OF AXIAL FAN IMPELLER | 2008 |
|
RU2369781C1 |
| MINE VENTILATION INSTALLATION | 2007 |
|
RU2369744C2 |
| 0 |
|
SU514103A1 |
