A mobile automatic switching rapid sampling flue gas denitrification test system

A technology for automatic switching and testing systems, applied in sampling devices, measuring devices, instruments, etc., can solve the problems of large deviation of test data, affecting the effect of ammonia injection optimization and adjustment, simplify process facilities, and eliminate water vapor condensation and blockage of pipes. road phenomenon, the effect of reducing the impact

Active Publication Date: 2017-09-01
SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD
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AI Technical Summary

Problems solved by technology

Due to the fluctuation of unit load and boiler combustion, during the 2-hour test process, it is easy to cause large deviations in the test data at the beginning, middle and end, and it is difficult for the test data to accurately reflect the flue section at the same time point. NO / O 2 / CO distribution seriously affects the optimization and adjustment effect of ammonia injection

Method used

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  • A mobile automatic switching rapid sampling flue gas denitrification test system
  • A mobile automatic switching rapid sampling flue gas denitrification test system

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Embodiment Construction

[0028] as attached figure 1 As shown, a mobile automatic switching rapid sampling flue gas denitrification test system includes the following components:

[0029] (1) Test vehicle. The test vehicle in this embodiment is a van-type test vehicle, which is used to load a flue gas analyzer, a flue gas preprocessor 21, an on-site flue gas sampling switching device, an intermediate flue gas sampling switching device, etc. Equipment and control devices, and provide a suitable working temperature condition for the flue gas analyzer.

[0030] (2) A plurality of first flue gas sampling steel pipes arranged on the flue section of the inlet 14 of the flue gas denitrification device according to the grid method, and a plurality of first flue gas sampling steel pipes arranged on the flue section of the outlet 15 of the flue gas denitrification device according to the grid method A second flue gas sampling steel pipe, a plurality of first flue gas sampling steel pipes and a plurality of sec...

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Abstract

The invention relates to a mobile automatic switching rapid sampling flue gas denitrification test system, which includes a test car, equipment loaded on the test car, and a control device. The equipment includes a plurality of flue gas sampling steel pipes arranged in a grid method, and a plurality of The on-site flue gas sampling switching device connected to the flue gas sampling steel pipe, the intermediate flue gas sampling switching device connected to the local flue gas sampling switching device, the flue gas extraction pump connected to the intermediate flue gas sampling switching device, and the extraction Flue gas analyzer connected to the pump. Through the improvement of the test system, the present invention can realize the grid method automatic switching rapid sampling test of flue gas at 220 points in one test condition within 25 minutes, effectively reducing the influence of unit load and combustion fluctuation on test results. In addition, the invention simplifies the process facilities and effectively eliminates the phenomenon of water vapor condensation and blockage of traditional long flue gas pipelines.

Description

technical field [0001] The invention specifically relates to a mobile automatic switching rapid sampling flue gas denitrification test system. Background technique [0002] Selective catalytic reduction flue gas denitrification technology is a deep NOx control technology commonly used in thermal power plants. It uses ammonia injected into the flue gas to reduce and remove NOx at 300-400°C and under the action of a catalyst. The denitrification device will increase the SO in the flue gas at the inlet of the air preheater while removing NOx in the flue gas 3 concentration and NH 3 Concentration, causing ammonium bisulfate blockage of the downstream air preheater. Reduce NH 3 Escape is an important measure to alleviate the clogging of ammonium bisulfate in the air preheater. For this reason, it is necessary to strictly control the amount of ammonia injection according to the upper limit of the performance of the denitrification device, and reduce the overall excess NH 3 Esc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00G01N1/24
Inventor 宋玉宝陈东金理鹏孙琦卢承政周健
Owner SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD
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