A gas detection device for blast furnace gas

Abstract

The invention discloses a gas detection device for blast furnace gas and relates to the technical field of gas detection. The invention includes a flue, and a cooling circulation mechanism is installed inside the flue; the cooling circulation mechanism includes a chimney, a spiral circulation pipe and a smoke guide pipe; a number of spiral circulation pipes arranged in a ring are evenly distributed in the chimney; the spiral circulation pipe A helical heat-conducting fin is fixed in the helical gap; the top and bottom ends of the helical circulation tube are respectively fixed and communicated with a first fixed plate and a second fixed plate. In the invention, the gas flows through the spiral circulation pipe in the chimney to the smoke guide pipe, and the cooling liquid flows through the cooling liquid inlet pipe, the branch pipe, the inside of the spiral circulation pipe and the annular guide channel, and finally flows to the cooling liquid outlet pipe. The cooling and heat exchange is carried out to realize the cooling of the high-temperature gas, and it is detected by the gas detector at the end of the detection pipeline; this process effectively realizes the cooling of the high-temperature gas and provides a safety guarantee for the detection accuracy of the gas detection instrument.

Description

technical field [0001] The invention belongs to the technical field of gas detection, in particular to a gas detection device for blast furnace gas. Background technique [0002] Blast furnaces provide convenience for people to carry out metal smelting, etc., and the gas containing microparticles produced by blast furnace smelting needs to be analyzed to help people carry out gas treatment and discharge in the later stage; while blast furnace gas is a high-temperature gas produced after the melting of metal substances, gas detection The instrument has a certain temperature tolerance. Direct contact of high-temperature gas with the gas detector will cause damage to the gas detector and affect the detection results of the gas detector. [0003] Therefore, a gas detection device for blast furnace gas needs to be studied to cool the high-temperature gas to help people perform gas detection and analysis. Contents of the invention [0004] The object of the present invention is...

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of gas detection device for blast furnace gas, through the process that gas flows through the spiral circulation pipe in the chimney to the smoke pipe, and through the cooling liquid inlet pipe, the branch pipe, the inside of the spiral circulation pipe and the The cooling liquid that flows to the cooling liquid outlet pipe for cooling and heat exchange finally realizes the cooling of high-temperature gas, and is detected by the gas detector at the end of the detection pipe; it solves the problem of high-temperature gas in the existing blast furnace The problem of inaccurate detection results of gas detectors due to high temperature problems

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