Heating device for internal combustion engine

Abstract

The invention discloses a heating device for an internal combustion engine. The heating device comprises an explosion-proof preheating plug arranged in the internal combustion engine, wherein the explosion-proof preheating plug comprises a cable fixedly connected with the top of an inner pole in the explosion-proof preheating plug, and the bottom of the pole is connected with an electric heating wire; the outer walls of the pole and the cable are provided with an explosion-proof shell in a wrapping manner, and the bottom of the explosion-proof shell is provided with a heat isolation housing in a communication manner; a heating housing is arranged in the heat isolation housing, and the electric heating wire is fixedly connected and wrapped with the heating housing; and the bottom of the heating housing extends to the outside of the heat isolation housing through the bottom of the heat isolation housing. The outer walls of the pole and the cable are wrapped with the explosion-proof shell, the electric heating wire is wrapped with the heating housing, and the upper part of the heat isolation housing is wrapped with the heat isolation housing, so that the cable, the pole and the electric heating wire are isolated from the outside, and the occurrence of an ignition source is fundamentally avoided; in this way, the internal combustion engine can work in dangerous areas (containing inflammables such as explosive gases and dust).

Description

technical field [0001] The invention relates to the field of structural design of internal combustion engines, in particular to a heating device for internal combustion engines. Background technique [0002] An internal combustion engine is a kind of power machinery, which is a heat engine that directly converts the heat energy released by burning fuel inside the machine into power. [0003] At present, due to the powerful power of the internal combustion engine, it is widely used in the industrial field. In order to be easy to start and work in a low temperature environment, the glow plug is an indispensable and important part of the internal combustion engine. The current is large, and there will be sparks and arcs when the glow plug is working. Therefore, the internal combustion engine using the glow plug cannot work in a more dangerous area (containing explosive gas, dust and other flammable materials), otherwise it will be easier. Cause disasters such as explosion or f...

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