Mechanical equipment maintenance field safety isolation method

Abstract

The invention discloses a mechanical equipment maintenance field safety isolation method. The method comprises steps: an isolation box (20) is arranged beside a field mechanical equipment driving motor (2), the isolation box (20) is internally provided with a load isolation switch (21) and an equipment stop control switch (22), one end of the load isolation switch is connected with a power cable (4) fed out by an electrical room and the other end is connected with a cable of the equipment driving motor, and connection lines at two ends of the equipment stop control switch are led out from the electrical room or from an equipment stop control line of a field operation control switch (3); before maintenance work of mechanical equipment (1) starts, power outage, lock hanging and plate hanging are carried out on the isolation box, and isolation and announcement for the mechanical equipment maintenance driving motor and a power supply are completed; and after equipment maintenance work is over, lock removal, plate removal and power supply are carried out in the isolation box, and connection between the mechanical equipment maintenance driving motor and the power supply is completed.

Description

technical field [0001] The invention relates to a safety isolation method for electric drive mechanical equipment during equipment maintenance, in particular to a safety isolation method for electric drive mechanical equipment under remote centralized control when equipment maintenance is performed. Background technique [0002] When the mechanical equipment using electrical drive is overhauled, in order to prevent the accidental and sudden operation of the overhauled equipment and injure the equipment overhaul personnel, it is necessary to cut off the driving power of the overhauled mechanical equipment, and at the same time, list the power switch that has been powered off. Hang a warning sign of "equipment maintenance, no closing" on the power switch or the electrical cabinet of the power switch, so as to prevent other personnel from switching on and transmitting power to the equipment that is already in the maintenance state, and injuring the equipment being maintained st...

AI Technical Summary

Problems solved by technology

In modern industry, a lot of equipment adopts remote centralized automatic control. When these equipment need to be overhauled, it is necessary to go to the centralized electrical room far away from the equipment for power failure, listing, delisting, and power transmission. The remote centralized electrical control of equipment The room is far away from the maintenance equipment site, sometimes as long as several kilometers, which is very inconvenient for equipment power outages, listing, delisting, and power transmission. People often do not carry out power outages and listings because of minor repairs because they are afraid of trouble, and conduct equipment in violation of regulations. Maintenance work often causes great potential safety hazards. If the equipment runs suddenly, it may even cause personal injury or death

Since the power outage listing place for maintenance equipment is located in the electrical room far away from the on-site maintenance equipment, the personnel entering and leaving the centralized electrical room during the centralized maintenance of equipment is complicated. On-site maintenance equipment cannot observe the situation in the remote electrical room, and they are always afraid that someone will switch the wrong switch in the electrical room to make the equipment under maintenance operate, and the on-site maintenance personnel feel very uneasy

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