A high temperature corrosion monitoring system for water wall based on real-time monitoring of CO

Abstract

The present application relates to a high-temperature corrosion monitoring system for a water-cooled wall based on CO real-time monitoring. A valve plate for blocking the monitoring pipe is vertically arranged in the pipe, the upper end of the valve plate penetrates the monitoring pipe and is vertically slidably connected to the monitoring pipe, and a valve rod is vertically arranged on the upper end of the valve plate; The sealing plate at the rear and fitted with the valve plate, the sealing plate is horizontally slidably connected to the monitoring tube, and the end away from the valve plate is horizontally provided with a driving rod extending to the outside of the monitoring tube; it also includes a concentration detector for detecting the concentration of CO. The detector is connected with a plurality of monitoring probes, the monitoring probes are embedded in the monitoring pipe and located behind the valve plate, and a space for accommodating the sealing plate is left between the monitoring probes and the valve plate. The present application has the effect of monitoring the CO content inside the boiler in real time.

Description

technical field [0001] The application relates to the field of boiler monitoring, and in particular, to a high temperature corrosion monitoring system for water walls based on CO real-time monitoring. Background technique [0002] When the combustion boiler is in use, the internal water wall is prone to high temperature corrosion, mainly when the CO content in the near wall flue gas is high, the flue gas is in a strong reducing atmosphere, and there is a large amount of H2S and other gases in the flue gas. , so it is easy to cause high temperature corrosion of the water wall. [0003] When monitoring the CO content in the traditional combustion boiler, a detector is usually set at the exhaust emission position of the boiler, and the CO content in the exhaust gas is monitored by the detector, but this monitoring method cannot monitor the inside of the boiler in real time. The CO content needs to be improved. [0004] Regarding the above-mentioned related technologies, the i...

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Problems solved by technology

[0002] When the combustion boiler is in use, the internal water-cooled wall is prone to high-temperature corrosion, mainly because when the CO content in the flue gas near the wall is high, the flue gas is in a strong reducing atmosphere, and there are a large amount of H2S and other gases in the flue gas , so it is easy to cause high temperature corrosion of the water wall

[0003] When monitoring the CO content in a traditional combustion boiler, a detector is usually set at the exhaust gas discharge position of the boiler, and the CO content in the exhaust gas is monitored by the detector, but this monitoring method cannot monitor the inside of the boiler in real time CO content, needs to be improved

[0004] For the related technologies mentioned above, the inventor believes that there is a defect that the CO content inside the boiler cannot be monitored in real time

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