A mine explosion-proof intelligent integrated power supply device

Abstract

The invention relates to the field of a mining power supply technology, and discloses a mining explosion suppression type intelligent integrated power supply apparatus. The integrated power supply apparatus comprises an explosion suppression type feed device and at least one storage battery power supply device connected with the explosion suppression type feed device, wherein the explosion suppression type feed device is also connected with an external underground distribution substation communication device, an external emergency illumination device, an external high-voltage switchgear and an external power supply device. According to the invention, AC or DC power supplies with different voltage grades and for different purposes can be provided, the power supply reliability is high, the power supply quality is good, the backup time is long, and the pressing problems can be well solved that conventional home and abroad coal mine underground backup power supplies are in short supply, or the management is chaotic and complex, the control power supply of an electric facility is unstable, the harmonic wave interference is severe, the voltage bounce is obvious, the backup time of communication equipment is short, and under the condition of power failure of an underground main power supply, accidents may be caused due to incapability of real-time monitoring of underground power supply equipment.

Description

technical field [0001] The invention relates to the technical field of mine power supplies, and more specifically, to a mine flameproof integrated power supply device. Background technique [0002] So far, the control power supply and operating power supply of underground explosion-proof and explosion-proof high and low voltage switchgears are all taken from the 100V AC voltage output by the secondary coil of the voltage transformer inside the explosion-proof switchgear. Poor quality and unreliable power supply are likely to cause misoperation of protection devices, or skipping trips, and can easily cause large-scale underground power outages. Since there is no underground backup power supply at present, or there is a backup power supply but the backup time is very short (a small battery is installed in a flameproof high-voltage switch cabinet), when the high-voltage power failure occurs, the automation equipment will also be powered off immediately, and the ground command c...

AI Technical Summary

Problems solved by technology

[0002] So far, the control power supply and operating power supply of underground explosion-proof and explosion-proof high and low voltage switchgears are all taken from the 100V AC voltage output by the secondary coil of the voltage transformer inside the explosion-proof switchgear. Poor quality, unreliable power supply, easy to cause misoperation of protection devices, or skipping trips, and easy to cause large-scale power outages underground

Since there is no underground backup power supply at present, or there is a backup power supply but the backup time is very short (a small battery is installed in a flameproof high-voltage switch cabinet), when the high-voltage power failure occurs, the automation equipment will also be powered off immediately, and the ground command center cannot be realized. Real-time monitoring of underground power distribution equipment and on-site, that is, the "four remote" functions of remote control, remote adjustment, remote signaling, and telemetry cannot be realized

[0003] Furthermore, the current underground communication equipment, lighting equipment, emergency power supply, video equipment in various regions, oxygen production equipment, etc. require backup power supplies of different voltage levels, but there is no complete backup power supply equipment with high integration, even if there are sporadic scattered installations The downhole backup power device cannot meet the requirements of high safety, high reliability, high degree of automation and long backup delay

Images