Electric automatic protective device of anti-explosion diesel locomotive

Abstract

The invention discloses an electric automatic protective device of an anti-explosion diesel locomotive, comprising a flame-proof type indicating box for the anti-explosion diesel locomotive, a flame-proof and inherent safety type control box used for the anti-explosion diesel locomotive, an intrinsic safety junction box and sensors. The electric automatic protective device is characterized in that the indicating box, the control box, the intrinsic safety junction box and each sensor form a gas self-checking circuit, a safety control loop, an operation instruction control circuit, an auxiliary protective circuit and a creepage protective circuit, wherein the operation instruction control circuit comprises a relay board 2 arranged in the flame-proof and inherent safety type control box used for the anti-explosion diesel locomotive, and the relay board 1 is connected with each sensor. The electric automatic protective device of the anti-explosion diesel locomotive adopts a reliable relay control way to control signals acquired by the sensors in the way of switching value and is simple and reliable.

Description

technical field [0001] The invention relates to an explosion-proof diesel locomotive, in particular to an electrical automatic protection device for an explosion-proof diesel locomotive, and belongs to the field of electrical technology. Background technique [0002] Explosion-proof diesel engine transportation equipment is widely used in coal mines where there are explosive gas mixtures such as methane, including various imported and domestic explosion-proof diesel engine trackless rubber-tyred vehicles. The safety protection device is a very important part of the explosion-proof diesel locomotive, which directly affects the safe operation of the diesel locomotive. It can detect and alarm the operating parameters in real time, and automatically shut down the diesel engine system according to the set time, so as to ensure the safety of the environment and the diesel engine system. . The patent application with the application number 90222070.5 discloses an automatic safety ...

AI Technical Summary

Problems solved by technology

The functions of the existing automatic protection devices for explosion-proof diesel locomotives are constantly being improved. The devices include the main engine and sensors for pressure, temperature and methane. Since the existing protection devices are mostly controlled by valves and switches, the action value of the temperature sensor has temperature Drift phenomenon, the protection and control circuit is not reliable enough, and the failure rate is high

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