Inflaming retarding piece of explosion-proof valve

Abstract

The invention relates to an inflaming retarding piece of an explosion-proof valve. The inflaming retarding piece comprises an annular piece body (1), an installation hole (2) is formed in the piece body (1), a plurality of bosses (7) are distributed on the front face of the piece body (1), are of a T structure and are evenly distributed in the circumference direction, and at least two circles of bosses (7) are arranged. Air flow channels with a plurality of bending parts are formed by gaps between the adjacent bosses (7). The bosses (7) on different circles on the piece body (1) are arranged in the radial direction in a parallel mode, and the bosses (7) are arranged in the same radial direction from the outer edge (6) to the inner edge (5) and are symmetrically crossed in the same circle. Compared with the prior art, the inflaming retarding piece is novel and simple in structure, the passing path of the air flow and the flame can be lengthened, the passing time of the air flow and the flame can be prolonged, the air flow can make full contact with all wall faces of the inflaming retarding piece to conduct heat exchanging, the temperature of the air flow is reduced, the flame is extinguished completely, and the problems that an inflaming retarding piece of an existing explosion-proof valve cannot extinguish the flame or release pressure quickly, effectively and reliably are solved.

Description

[technical field] [0001] The invention relates to the technical field of explosion-proof valves, in particular to a flame-retardant sheet of an explosion-proof valve. [Background technique] [0002] At present, when the diesel engine is running, heat will be generated in the crankcase due to the movement of the crankshaft, connecting rod and piston. High-pressure air flow and high-temperature flame, and the explosion-proof valve is set on the crankcase body, which can release the pressure in the crankcase. While releasing the pressure, it can prevent the flame from passing through and then close to prevent air from entering. [0003] Chinese Invention Patent No. 200710300274.2 discloses a "flame retardant sheet for explosion-proof valve". Extend toward the middle of the sheet. Although the inner edge of the sheet body is bent up and down to form several grooves, and there are several cavities formed by stacking two symmetrical flame-retardant sheets layer by layer, but due...

AI Technical Summary

Problems solved by technology

However, due to the lack of a clear staggered arrangement, it is easy to cause the airflow to flow to the closer channel, resulting in the accumulation of airflow and pressure increase in the local channel.

Images