Magnetic filter

Abstract

The invention relates to a magnetic filter, comprising a housing, a magnetic assembly and a filter cartridge, wherein the housing is provided with a fluid inlet for allowing fluid to enter the housing and a fluid outlet for allowing fluid to exit the housing; the magnetic The assembly is detachably arranged on the outer wall of the housing, and the magnetic assembly is used to adsorb impurities in the fluid on the inner wall of the housing; the filter cartridge has a U-shaped cross section and is detachably arranged in the housing. The outer wall of the filter cartridge is used to intercept impurities in the fluid outside the filter cartridge; the fluid inlet leads to the outside of the filter cartridge, and the inside of the filter cartridge communicates with the fluid outlet. The invention provides a magnetic filter capable of removing magnetic impurities and non-magnetic impurities in a fluid. The magnetic filter not only has a simple structure, but also has a good effect of removing impurities, prolongs the service life of the filter screen, and reduces the number of times to replace the filter screen. , and the cleaning of adsorbed impurities is also very convenient.

Description

technical field [0001] The invention relates to the technical field of purification equipment used in compressed gas preparation systems, in particular to a magnetic filter. Background technique [0002] In the compressed air preparation system, in order to make the compressed air meet the quality requirements of the industry, it is necessary to install a primary coarse filter, a microporous filter and a freeze dryer between the air compressor and the pure gas outlet to fully remove the compressed air. solid impurities and moisture. The traditional slag removal filter generally includes a filter housing, a fluid inlet and outlet, and a filter screen installed in the housing. When the fluid passes through the filter screen, most impurities will be intercepted, and the interception slag removal method is adopted. [0003] At present, compressed air pipelines often use carbon steel pipes, which have poor corrosion resistance. After the system has been in operation for a period...

AI Technical Summary

Problems solved by technology

The magnetic filter in the prior art can only remove magnetic impurities in the fluid. For some non-magnetic impurities, additional filters need to be installed in the pipeline system to remove them, which increases the complexity and maintenance cost of the system; in addition, when the surface of the magnetic bar When a certain amount of impurities are attached, the magnetic rod needs to be pulled out from the filter, and the cleaning of the magnetic rod is arranged in addition. The process is more complicated and takes a long time for cleaning

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