Contact-type temperature measuring device for high-temperature flue gases and measuring method thereof

Abstract

The invention discloses a contact-type temperature measuring device for high-temperature flue gases and a measuring method thereof. The device comprises a high-temperature flue gases acquisition system, a water cooled heat exchange system, a flue gases component analysis system, a flue gases extraction device, a measuring element, and a data acquisition and processing system. The measuring element, the flue gases component analysis system are electrically connected with the data acquisition and processing system. The water cooled heat exchange system is arranged behind the high-temperature flue gases acquisition system. The flue gases component analysis system is arranged at the tail end position of a secondary water cooled system, and the flue gases extraction device is connected with thetail end of the secondary water cooled system. The contact-type temperature measuring device for high-temperature flue gases and the measuring method thereof of the invention cool the high-temperature flue gases to below 1200 DEG C through the water cooled heat exchange system, and calculate the temperature of the high-temperature flue gases by measuring the temperature of the high-temperature flue gases and the heat absorption of the cooling medium. Therefore, the high-precision and long-time measuring of the high-temperature flue gases above 1600 DEG C is achieved.

Description

technical field [0001] The invention belongs to the technical field of industrial heating equipment and detection and monitoring, and more specifically relates to a high-temperature flue gas contact temperature measuring device and a measuring method thereof. Background technique [0002] For industrial heating equipment such as boilers and kilns, the temperature in the furnace or kiln is one of the very important operating conditions. Accurate measurement of temperature change and distribution is of great significance for combustion organization and optimization, product quality control, etc. In the combustion area, the temperature is often above 1600 °C, and the temperature of the ultra-high temperature kiln can be as high as 1800 °C. At present, contact temperature sensors such as thermocouples cannot achieve long-term continuous measurement for high-temperature flue gas temperatures above 1600 °C. Non-contact measurement methods such as optical methods are commonly used ...

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Problems solved by technology

[0005] In view of this, the present invention provides a high-temperature flue gas contact temperature measuring device and its measurement method for the problem that the existing technology cannot realize long-term and high-precision measurement of high-temperature flue gas above 1600 °C

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