FBDNO4.0 / 22.2 Shanxi mine local fan, coal mine explosion on the rotating fan

Shanxi mine local fan, coal mine ventilation basically achieved the dual fan dual power supply: the main fan dedicated power supply, standby fan-powered electricity supply. Dual Aircraft Fan speed control device for the automatic dual power inputs, is composed of two structurally and electrically independent of each other but also to achieve speeder automatic switching combination. Dedicated power supply and backup power respectively, while access control devices, output speeder control of the main and secondary fan. Main and backup switch automatically switches the fan inside the speeder or by manual switching operation button, when one job to another in stand-by mode. When stand-alone operation working principle and type speed control devices to achieve exactly the same. 1. Internal dual power automatic switching 2. gas concentration sensor signals simultaneously access the main and backup fan can be realized on the basis of the gas concentration to regulate air flow, thus effectively prevent the gas gauge. 3. Equipment Mathematical small, simple wiring and powerful. FBD series of wind institution characteristics and working principle: Shanxi mine local fan, FBD series fans from the two groups of electrical components, two relative rotation of the impeller. Stage impeller rotates clockwise, counterclockwise rotation of the secondary impeller, air from the collector enters stage impeller obtain energy directly into the secondary impeller, after pressurization sent. The role of the secondary impeller, in addition to increasing airflow energy, but also other types of axial flow both in stationary vanes ventilation functions in the same time to get oriented straightening velocity component in the circumferential direction, both to rationalize the energy stream, but also reduces noise. 1. High efficiency: FBD Series fan design, advanced technology, which leaves ternary fluid design, the wing was twisted, fan efficient large area of ??working conditions, the fan is always in operation within the efficient operating range. 2. Low Noise: FBD rotating series fan with direct drive, compared with the old fans, reducing the guide vane means, in increased fan pressure at the same time streamline the direction of the air flow 3. More gentle pressure, surging phenomenon tiny, at high pressure, low flow region is also stable, in the underground air distance, adaptability to complex roadway. Contact: Weijing Li 18,605,483,306 18,605,385,365 landline phone: 0538-8700576 Fax 0538-8712375 QQ number: 2355438093