Pre-filter for flue gas analysis

Abstract

The invention discloses a pre-filter for flue gas analysis, and belongs to the technical field of flue gas analysis; the pre-filter comprises a case, a lining rod A and a lining rod B are welded on the inner wall of the case and are welded into an inner supporting frame body in the case, and a middle rod is welded in the middle of the inner supporting frame body formed by welding the lining rod Aand the lining rod B; an X-shaped supporting rod is welded between the lining rod A and the lining rod B on the two sides of the middle rod, a through hole A is formed in one side of the outer wall ofthe case, an air inlet pipeline of a three-way pipe A extends out of the through hole A, the lining rod A and the lining rod B are welded in the case to form the inner supporting frame body, and themiddle rod is arranged in the middle of the inner supporting frame body for supporting. Meanwhile, the X-shaped supporting rod is welded between the lining rod A and the lining rod B on the two sidesof the middle rod, a reinforced supporting structure is provided for the interior of the case through welding of multiple sets of rod bodies, and the internal structure of the case is reinforced.

Description

technical field [0001] The invention relates to the technical field of flue gas analysis, in particular to a pre-filter for flue gas analysis. Background technique [0002] The flue gas analyzer is a device that uses electrochemical sensors to continuously analyze and measure the flue gas content of CO2, CO, NOx, SO2, etc. It is mainly used for hand-held use of small fuel oil and gas boiler pollution discharge or environmental monitoring near pollution sources. According to the way of use, it can be divided into handheld flue gas analyzers and fixed connection recording flue gas analyzers. [0003] 1. The front end of the flue gas analysis equipment in the prior art is equipped with a pre-filter to filter the dust in the flue gas, but the inside of the case of this filter lacks an effective support structure. When the case is impacted by the outside, the case is easily deformed , the internal filter pipeline is easily damaged by impact, for this reason, we propose a pre-fi...

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Problems solved by technology

[0003] 1. The front end of the flue gas analysis equipment in the prior art is equipped with a pre-filter to filter the dust in the flue gas. However, the inside of the case of this filter lacks an effective support structure. When the case is impacted by the outside, the case is easily deformed , the internal filter pipeline is easily damaged by impact, for this reason, we propose a pre-filter for flue gas analysis

[0004] 2. The front end of the flue gas analysis equipment in the prior art is equipped with a pre-filter, and when this filter is used for a long time, the filter element inside the filter needs to be replaced. The gas analysis equipment is shut down and replaced, which affects the operation efficiency of the flue gas analysis equipment. Therefore, we propose a pre-filter for flue gas analysis

[0005] 3. The front end of the flue gas analysis equipment in the prior art is provided with a pre-filter, which is provided with a simple filter element for filtering, and most of these filter elements are fixed inside the filter box by screw locking. It is necessary to remove the screws to disassemble the filter element in the filter box, which affects the replacement efficiency of the filter element inside the filter. Therefore, we propose a pre-filter for flue gas analysis

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