Safety valve applicable to controlling high temperature flue gas

Abstract

The invention provides a safety valve applicable to controlling high temperature flue gas. The safety valve comprises an executing mechanism and a flap valve body, wherein the executing mechanism is arranged outside the flap valve body; the flap valve body comprises a flap rotator protecting sleeve, a flap rotator and a sealing ring arranged on the inner wall of the flap valve body; the flap rotator comprises a rotating shaft and valve plates welded on both sides of the rotating shaft; a plurality of reinforcing ribs are arranged on each valve plate; the rotating shaft is fixed on the flap valve body through a cast iron sleeve and an end plate; the rotating shaft is connected with the executing mechanism through a connecting rod mechanism. By the additional arrangement of the reinforcing ribs, the safety valve is high in structural stability, low in equipment cost, high in equipment applicability, fewer in production faults and low in manufacturing cost, and resources are saved. According to the safety valve provided by the invention, opening and closing of a traditional manual control valve are changed, opening and closing of an electric control valve are increased, and thus a production system is capable of operating stably.

Description

technical field [0001] The invention relates to a safety valve suitable for controlling high-temperature flue gas, belonging to the technical field of industrial waste gas discharge devices. Background technique [0002] The high-temperature flue gas discharged from the boiler must meet the national environmental protection requirements. Therefore, at present, the high-temperature flue gas needs to be treated before being discharged. [0003] In traditional devices, the high-temperature flue gas is only discharged into the atmosphere through the chimney in a single direction, which does not meet the national environmental protection requirements. At present, the high-temperature flue gas is often treated with the water curtain dust removal device. By manually or electrically controlling the closing of the valve, the high-temperature flue gas enters the water curtain dust removal device for spraying dust reduction and desulfurization treatment, and then discharged into the at...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of high-temperature deformation of the existing valve body, the present invention provides a safety valve suitable for controlling high-temperature flue gas, so as to solve the problem of controlling the emission of high-temperature flue gas during shutdown or production suspension.

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