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Mining intelligent ventilator controller

A technology for controllers and ventilators, applied in pump control, machines/engines, mechanical equipment, etc., can solve problems such as not being able to increase automatically, achieve the effect of reducing gas concentration and ensuring safe production

Inactive Publication Date: 2013-05-15
王晓红
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, when the gas concentration at the working face rises, it cannot automatically increase the wind speed and air volume to dilute the gas concentration and bring toxic and harmful gases such as gas out of the working face, so as to ensure that the gas concentration at the working face will never exceed the limit. This is the largest technology for ventilation management at present. defect

Method used

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  • Mining intelligent ventilator controller
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Embodiment Construction

[0016] Such as figure 1 , figure 2 As shown, close the isolating switches GK1 and GK2, the transformer BK1 outputs 24 DC, the relay pulls in with a delay of 3 seconds, and its contacts connect the BK2 power supply to X1 and X3 all the way, the 220V output is for the PLC power supply, and the 36V is for each executive contactor Pull in to provide power. The other contact connects the input terminal X2 to a low level, and the automatic switching relay does not act, so the power contactor of circuit 1 is energized and closed. The frequency conversion controller BPQ has power; the motor protection JDB detects the load line normally, its contacts are closed, the PLC input terminals I0.4 and I0.5 are connected to low level, the main fan relay K4 is preferentially closed, and the main fan contactor KM3 is The electric pull-in provides the necessary conditions for the fan to start. At this time, the gas sensor and the wind speed sensor will also transmit the detected data to the P...

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Abstract

The invention relates to a mining intelligent ventilator controller which comprises a power supply, a double-power-supply automatic switching device, a frequency conversion controller (BPQ), a bypass, a programmable logic controller (PLC), a gas sensor, an air velocity transducer, an alarm apparatus and a ventilator. The mining intelligent ventilator controller is capable of automatically adjusting the revolving speed of the ventilator according to gas density of a working face, namely, automatically adjusting air supplying quantity and enabling the gas density of the working face to be controlled within a safe numerical value.

Description

technical field [0001] The invention relates to a ventilator controller, in particular to a mine-used ventilator controller with automatic speed regulation. Background technique [0002] Underground conditions in coal mines are special, the environment is poor, and poisonous and harmful gases such as gas gushes out from time to time, which seriously threatens the life safety of miners and the safe production of enterprises. Therefore, mine ventilation is the primary basic work of safe production. [0003] In order to ensure the continuity and reliability of ventilation, most enterprises currently use a "dual power supply automatic switching magnetic starter". Surface air supply to ensure the continuity of ventilation. But its disadvantage is that no matter how high the gas concentration of the working face is and how much air volume is needed, the air supply is always performed at a constant wind speed and air volume. But can't switch automatically when especially moto...

Claims

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Application Information

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IPC IPC(8): F04D27/00
Inventor 王晓红
Owner 王晓红
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