Self-regulated exhaust and explosion protection equipment of mining diesel engine

Abstract

The invention relates to self-regulated exhaust and explosion protection equipment of a mining diesel engine. The self-regulated exhaust and explosion protection equipment comprises a front exhaust duct, a cooking water jacket, a rear exhaust duct and an expansion waste gas tank, wherein the cooling water jacket is arranged outside the front exhaust duct, the rear exhaust duct and the expansion waste gas tank, the front exhaust duct and the rear exhaust duct are respectively arranged at two ends of the expansion waste gas tank, an unburned material particle cleaning-up hole is arranged at the lower end of the expansion waste gas tank, a fence explosion protection structure is arranged in the expansion waste gas tank, and a temperature sensor is arranged at the rear exhaust duct and connected with an electronic control unit (ECU) by a lead. The self-regulated exhaust and explosion protection equipment can achieve the purpose of regulating flow velocity of cooling water along with working conditions by adopting combined exhaust and cooling technology and controlling the flow velocity of the cooling water by connecting the temperature sensor with the ECU, and ensure the temperature of exhausted waste gas to be always under 70 DEG C in running; and in addition, the waste gas expansion structure can effectively reduce the flow velocity of the waste gas, and fuel particles with sparks in the waste gas cab be collided with the waste gas due to the fence structure, thus achieving the effect of eliminating sparks.

Description

technical field [0001] The invention relates to an explosion-proof device for a mining diesel engine, in particular to a self-regulating exhaust explosion-proof device for a mining diesel engine. Background technique [0002] The flammable and explosive working environment in the mine usually requires some electromechanical equipment to have explosion-proof performance in order to ensure its normal and safe operation. During the operation of the diesel engine, a large amount of exhaust gas will be generated and discharged. These high-temperature exhaust gases are easy to ignite the gas in the mine, damage the engine components, and pollute the environment. Therefore, the exhaust gas must be treated. The temperature of the exhaust gas discharged by the mining diesel engine is generally higher than 400°C. The explosion-proof technology requires that the temperature of any outer surface of the explosion-proof device should not be greater than 150°C, and the exhaust temperature ...

AI Technical Summary

Problems solved by technology

For the operation of diesel engines with different powers, this cooling technology lacks a contingency strategy. When the diesel engine maintains high-power conditions for a long time, the temperature of the cooling water will quickly rise above 90°C, which will cause the exhaust gas temperature to rise. Temperature above 70°C, below 70°C required by the explosion-proof technical standard, the working reliability is poor, and there are potential safety hazards

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