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Gas analytical system

A technology of gas analysis system and gas analyzer, which is applied in the direction of analyzing materials, measuring devices, instruments, etc. It can solve the problems of small component measurement value, affecting detection accuracy, and low temperature, so as to reduce the number of joints and reduce equipment maintenance costs , Improve the effect of measurement accuracy

Inactive Publication Date: 2011-08-17
BEIJING SDL TECH
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Problems solved by technology

[0003] However, the above-mentioned gas analysis system only adds a heating device to the sampling probe and the electric heating sampling line, and the temperature is relatively low (about 120°C)
When the sample gas enters the filter and refrigerator, because the sample gas loses heat tracing, the temperature drops very quickly, causing some highly water-soluble gases (such as HF, NH3, HCl, etc.) to quickly combine with the condensed liquid water to form The acid / alkali will flow away, which will make the measured value of some components smaller, which will directly affect the detection accuracy

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Embodiment Construction

[0020] In order to make the above objects, features and advantages of the present invention more comprehensible, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] This embodiment provides a gas analysis system, such as figure 1 As shown, the gas analysis system sequentially includes a sampling probe 1 , an external heating sampling line 2 , a sampling pump 3 , an internal heating sampling line 4 and a gas analyzer 5 along the direction of sample gas transmission.

[0022] The sampling probe 1 contains a sample gas filter 11 that can remove dust in the sample gas. The sample gas filter 11 can block particles with a particle size greater than or equal to 2 μm and prevent large particles from entering the external heating sampling pipeline 2 . The sampling pump 3 is accompanied by a heater, which can maintain the temperature of the sample gas. The heater ca...

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Abstract

The invention discloses a gas analytical system comprising a sampling probe, an external heat traced sampling pipeline, a sampling pump, an internal heat traced sampling pipeline and a gas analyzer in sequence along the transmission direction of sample gas, wherein the sampling probe comprises a sample gas filter used for removing dust out of the sample gas; the sampling pump is accompanied with a heater which can keep the temperature of the sample gas; the gas analyzer is suitable for analyzing and detecting the high-temperature sample gas up to 200 DEG C; after being collected by the sampling probe, the sample gas is transmitted to the gas analyzer through the external heat traced sampling pipeline, the sampling pump and the internal heat traced sampling pipeline; and when entering the gas analyzer, the sample gas is consistent with the sample gas collected by the sampling probe, thus improving the measurement accuracy of the content of each component in the high-temperature sample gas.

Description

technical field [0001] The invention relates to gas analysis technology, in particular to a gas analysis system. Background technique [0002] Gas analysis systems usually include: sampling probes, electric heating sampling lines, filters, refrigerators, dehumidifiers, sampling pumps, gas analyzers, etc. At present, industrial gas monitoring generally adopts the direct extraction method. The direct extraction method is to use a special heating sampling probe to extract the sample gas from the flue or the exhaust port, and use the electric heating sampling pipeline to carry out heat tracing transmission on the sample gas so that the sample gas does not condense during the transmission; when the sample gas is After being transported to the analysis cabinet (including part of the electric heating sampling pipeline, filter, refrigerator, dehumidifier, sampling pump, gas analyzer, etc.), pretreatment such as dust removal, cooling, and dehumidification is performed, and then it e...

Claims

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Application Information

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IPC IPC(8): G01N1/44G01N1/22G01N33/00
Inventor 宋婷姗
Owner BEIJING SDL TECH
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