Indented flame-retardance anti-explosion valve

Abstract

The invention discloses an indented flame-retardance anti-explosion valve. The indented flame-retardance anti-explosion valve comprises a valve cover, a valve disc, a valve base, a conical spring, a sealing ring, flame retarding pieces, an inner flame retarding ring, an outer flame retarding ring and a bolt; the inner flame retarding ring and the outer flame retarding ring are mounted between thevalve cover and the valve base; more than one annular flame retarding pieces are mounted between the inner flame retarding ring and the outer flame retarding ring; multiple turbulent flow columns aremounted on the annular flame retarding pieces; the turbulent flow columns comprise windward surfaces and leesides; the windward surfaces of the turbulent flow columns are of indented structure, or theleesides of the turbulent flow columns are of indented structures, or the windward surfaces and the leesides of the turbulent flow columns are both of indented structures; the turbulent flow columnson the previous rows are positioned in the front centers of gaps between two adjacent turbulent flow columns on later rows; and the gaps between two adjacent turbulent flow columns on the later rows are smaller than the widths of the turbulent flow columns on the previous rows. The indented flame-retardance anti-explosion valve has the characteristics of compact structure, high heat transfer efficiency, high flame quenching speed, stable performances, modular design and convenience to maintain.

Description

technical field [0001] The invention relates to an inner recessed flame-retardant explosion-proof valve, in particular to an inner recessed flame-retardant explosion-proof valve for deflagration flames of Class A combustible gases. Background technique [0002] Explosion-proof valve is a kind of safety equipment widely used in industry. It is used in the pipeline system for conveying combustible gas, oil gas recovery system and combustible gas discharge system to avoid explosion accidents. For example, in the shipbuilding industry, the long-term continuous operation of the ship will cause local overheating of the parts in the crankcase of the diesel engine, and the heat generated will cause the particles from the lubricating oil in the crankcase and the leakage of the piston ring to form a highly flammable oil mist mixture. When the oil mist mixture reaches a certain concentration and the temperature reaches the temperature to detonate the mixture, the crankcase explosion wi...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of large volume and low efficiency of quenching and extinguishing flames in the flame retardants or explosion-proof valves commonly used in petroleum, coal mine and chemical industries, and propose a compact structure, high heat transfer efficiency, and fast flame quenching speed. , and stable performance, modular design and easy maintenance of the recessed flame-retardant explosion-proof valve

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