Sulfur determination gas circuit
A gas path and sulfur measurement technology, which is used in measurement devices, material analysis by optical means, instruments, etc., can solve problems such as many influencing factors and unsatisfactory effects.
Inactive Publication Date: 2014-12-03
CHANGSHA KAIYUAN INSTR
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However, due to the many influencing factors in the measurement, the effect is not ideal
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[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0022] Please refer to figure 1 , figure 1 Schematic diagram of the structure of the sulfur measuring gas circuit provided by the embodiment of the present invention.
[0023] The gas circuit for measuring sulfur provided by the embodiment of the present invention includes an oxygen supply device 1, a pipeline, a combustion tube 9, a drying...
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The invention discloses a sulfur determination gas circuit. According to the sulfur determination gas circuit, a buffer is added in front of an infrared detection pool to form a buffer gas circuit, gas generated in combustion passes by the buffer, and the pressure and speed of the gas flowing by the infrared detection pool can be effectively controlled by the buffer, so that the height of an absorption peak can be controlled, the height of the absorption peak is obviously reduced, and a sample with high content can be determined in an optimal linear scope of the infrared detection pool. The infrared detection pool in the prior art only can measure a coal sample with sulfur content of 0.1 to 5 percent by adopting a linear correction way, but the nonlinear correction way needs to be adopted for the sample with sulfur content of more than 5 percent to solve a nonlinear coefficient of the infrared detection pool. The sulfur determination gas circuit can determine the coal sample with sulfur content of 30 percent or above, the linear correction way is directly used, a greater measure scope than the nonlinear correction way can be satisfied, the height of the absorption peak is obviously reduced, the entire determination is enabled to be within the linear scope of the infrared detection pool, and the influence of nonlinear factors of the infrared detection pool on the determination can be effectively solved.
Description
technical field [0001] The invention relates to the technical field of sulfur content measurement, in particular to a gas path for measuring sulfur. Background technique [0002] The coal samples used in coal quality analysis are representative samples taken from coal seams or a large amount of coal for analysis, identification and testing according to the requirements of certain specifications. [0003] When the current equipment is used to detect and analyze the sulfur content in coal samples, infrared cells are generally used. The current infrared cells are all non-linear detection. Due to the infrared pool factor, the result deviation error is large. The detection range of the entire instrument is limited. At present, some instruments mainly obtain nonlinear coefficients through secondary or tertiary nonlinear correction. However, due to the many influencing factors in the measurement, the effect is not ideal. [0004] Therefore, how to provide a gas path for measuri...
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IPC IPC(8): G01N21/3563
Inventor 罗建文徐开群张裕烂
Owner CHANGSHA KAIYUAN INSTR