Interlocking device and detection method

Abstract

The invention discloses an interlocking device and a detection method. A movable contact of a first switch in power wire-in equipment is fixed by a first A mechanical lock, so that power supply of the power wire-in equipment is limited; meanwhile, a movable contact of a second switch in a high-voltage isolator case is fixed in different positions through a second A mechanical lock and a first B mechanical lock, so that power supply of the high-voltage isolator case is limited; and through control of a first B mechanical lock and a third B mechanical lock, the inlet of a high-voltage discharge area is opened when the high-voltage isolator case is powered off, so that when a power supply is cut off, internal maintenance of the high-voltage isolator case and the high-voltage discharge area is facilitated, and accordingly, casualties caused by the reason that a maintainer enters an electric field area during operation of an electric field are avoided.

Description

technical field [0001] The invention relates to the field of safety, in particular to an interlock device and a detection method. Background technique [0002] Due to its low emission, reliability, and high efficiency, electrostatic precipitators have become the main dust removal equipment for coal-fired boilers. [0003] The electrostatic precipitator needs to set up a maintenance manhole door in each electric field area, so that the maintenance personnel can enter the electric field to repair the cathode and anode equipment. However, the electric field area is a high-voltage discharge area, and the voltage can reach tens of thousands of volts after being boosted. If someone enters the area while it is charged, it is extremely dangerous. [0004] At present, the maintenance manhole door of the electrostatic precipitator is only equipped with a simple mechanical lock, and anyone who has the key can enter the electric field area at any time. At the same time, there is often...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention provides an interlocking device and detection method to solve the problem in the prior art that on-site maintenance personnel enter the electric field when the electric field is running and cause casualties. The specific scheme is as follows:

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