Turbine type gas compressor front end dust remover and filter element thereof

Abstract

The invention discloses a turbine type gas compressor front end dust remover and a filter element of the turbine type gas compressor front end dust remover. By means of the turbine type gas compressor front end dust remover and the filter element of the turbine type gas compressor front end dust remover, the phenomenon that a turbine type gas compressor is subjected to scaling after being used for a long time can be effectively improved. The front end dust remover comprises an outer shell, the filter element mounted in the outer shell, and a back-blowing dust cleaning device which acts on the filter element. The outer shell is connected with the filter element through a pore plate and forms a first space and a second space which are separated. Transmission of gas to be filtered happens in the first space, and the transmission of filtered gas happens in the second space. The filter element is provided with a filter material which is composed of a porous high-density polyethylene support body and an expanded polytetrafluoroethylene (PTFE) filter film, wherein the expanded PTFE filter film is closely attached to the surface of the porous high-density polyethylene support body. The removal rate of dust with a grain diameter of greater than or equal to 0.5 micrometer in the gas to be filtered by the expanded PTFE filter film is more than 99%. According to the turbine type gas compressor front end dust remover and the filter element of the turbine type gas compressor front end dust remover, the filter material can maintain stable and high filter precision for a long time, and therefore the phenomenon that the turbine type gas compressor is subjected to the scaling after being used for a long time can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of gas filtration, in particular to a dust collector at the front end of a turbo type gas compressor and a filter element thereof. Background technique [0002] Gas compressors can be roughly divided into two categories: displacement type and turbine type in terms of working principle. The positive displacement gas compressor relies on mechanical movement to directly change the volume of the gas to achieve the purpose of boosting. At present, it is mainly used in occasions with small and medium flow rates. The turbo gas compressor first relies on the high-speed rotating impeller to increase the flow rate of the gas, and then makes the high-speed air flow rapidly decelerate in the diffuser to achieve the purpose of boosting. At present, it is mainly used in large flow occasions. [0003] Existing turbo type gas compressors mainly include centrifugal type, axial flow type, diagonal flow type and compound type...

AI Technical Summary

Problems solved by technology

At this time, the service time of the filter cartridge/bag is far from reaching its theoretical service life, and there is no obvious change in its appearance, resulting in a decrease in th

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