High temperature flue gas moisture instrument anti-abrasive anti-plugging method and device

Abstract

The utility model relates to a wear and block preventing method of a moisture meter for high temperature flue gases, which comprises a wear resistant arc baffle sampling apparatus 1), an anti-wear sampling sleeve 2), and an anti-clogging backblowing pipe; wherein, the sampling apparatus can be adjusted at any angles, and comprises an auto-exciting anti-wear sampling sleeve, an anti-wear arc baffle which can be adjusted at any angles; the two devices can be combined into an anti-wear and anti-clogging sampling apparatus of gas flue moisture meter, according to the flow direction of the gas flues and the sampling points for measurement; the sampling device adopts the composite wear resistant coating of SS316 stainless steel as protective layer, and a steam stop sleeve is arranged in the sampling sleeve to prevent the corrosion due to dew condensation on the surface; an air tube is arranged in the auto-clogging backblowing pipe for conducting air backblowing automatically or manually.

Description

technical field [0001] The invention relates to a method and device for anti-wear and anti-blocking of a high-temperature flue gas moisture meter. Background technique [0002] High-temperature flue gas generally refers to the gas produced by coal-fired power generation projects in the thermal power industry. As a special medium, the general temperature range is 80-120 degrees, and it may reach 160 degrees under special circumstances. In addition, there are generally dust and dust in the flue gas. Acidic substances such as SO2, NOX, etc., how to overcome high temperature, high dust and acidic substances to ensure online measurement of flue gas moisture is a very difficult problem. At present, oxidation picks are generally used in China to measure the oxygen content in dry and wet flue gas. Obtaining flue gas moisture through calculation is an indirect measurement method. The main problems of this method are high cost and low measurement accuracy, which cannot meet the needs ...

AI Technical Summary

Problems solved by technology

[0009] 2. Germany TESTO: It is a professional manufacturer in the field of moisture measurement, focusing on the measurement of portable gas moisture in various occasions, and there is no product that can be applied to high-temperature flue gas moisture measurement

However, the problems of gas dust wear and clogging have not been properly solved

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