Visual filter capable of automatically blowing gas and filtering method thereof

Abstract

The invention discloses a visual filter capable of automatically blowing gas and a filtering method thereof. The filter comprises a filtering diaphragm, a filtration chamber and a sample gas chamber, wherein the filtering diaphragm is installed in a main cavity, the filtration chamber and the sample gas chamber are separated on the two sides of the filtering diaphragm; the edge of the filtering diaphragm is provided with a seal ring; one end of the main cavity is an opening; the middle of a bottom plate on the other end is inserted with an outlet nozzle communicated with the sample gas chamber; a branch block, the filtering diaphragm, an inner cover, a glass window and a junk ring are successively installed from the bottom plate of the main cavity to the opening in the main cavity; the sample gas chamber is surrounded by one side of the filtering diaphragm, the bottom plate of the main cavity and the branch block; and the filtration chamber is sounded by the other side of the filtering diaphragm, the inner cover and the glass window. The invention is suitable for the rear end of sample gas processing; and sample gas is used before entering an on-line analyzer to obtain the purposes of dedusting and dehydrating, and the sample gas obtains high quality approaching to that of the standard gas.

Description

technical field [0001] The invention relates to a gas filter used in a sample gas processing system and a gas filtering method. Background technique [0002] The sample gas treatment system is the core key technology of the online analysis system. Every sample gas treatment system is necessary, and the "dust removal" and "water removal" of the sample gas are two extremely difficult problems in the sample gas treatment. [0003] At present, the gas filters used by domestic sample gas processing system manufacturers have not been ideal in terms of "dust removal" and "water removal", and are still at a low-to-medium level. The main manifestations are: [0004] 1. The filtering accuracy is not high. [0005] 2. Dust and water are easily blocked. [0006] 3. Poor anti-corrosion performance and easy to leak. [0007] 4. The internal volume is large (generally tens of cubic centimeters), and the analysis lag time is long. [0008] 5. The pollution status of the filter membrane ...

AI Technical Summary

Problems solved by technology

[0009] The present invention provides a visual self-blowing gas filter and its filtering method, to solve the technical problems of poor effect of "dust removal" and "water removal" of the existing gas filter and unreasonable filter structure

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