Multifunctional air cylinder reliable disconnection type nitrogen rapid purging device

Abstract

A multifunctional air cylinder reliable disconnection type nitrogen rapid purging device comprises a shell. A double-function main air cylinder is arranged on the left side of the shell, an air cylinder pipe is arranged in the double-function main air cylinder, and a rapid connector male head is installed at the right end of an outer end pipe. A nitrogen connecting pipe, an anti-explosion nitrogenvalve and a nitrogen pipe are sequentially connected to the lower portion of the left end of the double-function main air cylinder, and a main air source pipe is installed on the nitrogen pipe. The right side of the shell is provided with a self-closing rapid connector female port and is sequentially connected with a gas connecting pipe, an anti-explosion gas valve and a gas pipe, and two lockingcylinders are arranged at the same time. Three time relays and two two-position five-way electromagnetic valves are arranged at the middle lower part of the shell. The self-closing rapid connector male head is combined with or separated from the matched female port through gas reversing of the three time relays and the two two-position five-way electromagnetic valves, and a locking sleeve is driven to complete pulling and resetting locking. In cooperation with opening and closing of the anti-explosion nitrogen valve and the anti-explosion gas valve, the functions of blowing nitrogen into thegas connecting pipe and the gas pipe and stopping blowing are achieved.

Description

technical field [0001] The invention relates to the production and use of coal gas (and chemical natural gas, etc.) equipment and supporting devices of pipeline safety interlocking systems in industrial enterprises. Specifically, it is suitable for steel (iron) ladle, tundish, mixed iron furnace, steel rolling heating furnace and heat treatment furnace gas combustion device, as well as copper ladle, aluminum ladle, holding furnace (or smelting furnace) natural gas in nonferrous metal enterprises Combustion devices such as heating or heat preservation, etc., various production devices, supporting devices for safety control interlocking systems of pipelines. Background technique [0002] At present, most of the known combustion devices, production devices and equipment pipelines of iron and steel, non-ferrous metal (and chemical) enterprises are only equipped with manually connected nitrogen (or steam) purge nozzles, which cannot realize the automatic interlocking function . ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical defect of the lack of safety interlock control supporting devices in the existing gas (natural gas) transportation and use equipment and facilities, the invention provides a multi-functional cylinder reliable disconnection type nitrogen rapid purging device

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