Replaceable multi-stage filtering device for air compressor

Abstract

The invention relates to the technical field of multi-stage filtering devices of air compressors, and discloses a replaceable multi-stage filtering device for an air compressor. The filtering device comprises a lower filter shell, an upper filter shell is fixedly mounted at the upper end of the lower filter shell, and a fixing flange is arranged between the upper filter shell and the lower filter shell. An air inlet pipe is fixedly connected to the upper end of the upper filter shell, an air conveying pipe is fixedly connected to one side of the lower filter shell, a filter element is arranged in the lower filter shell, a sealing sleeve is fixedly connected to the upper end of the filter element on the upper side in the upper filter shell, and a blow-off pipe is fixedly connected to the lower end of the lower filter shell. According to the replaceable multi-stage filtering device for the air compressor, deformation and air leakage caused by load bearing at the pipeline connecting position can be avoided, the filter element can be conveniently replaced, the interior of the lower filter shell can be conveniently cleaned, and cleaning is thorough.

Description

technical field [0001] The invention relates to the technical field of multi-stage filtering devices for air compressors, in particular to a replaceable multi-stage filtering device for air compressors. Background technique [0002] An air compressor is a device used to compress gas. The air compressor is similar in construction to the water pump. Most air compressors are reciprocating piston type, rotary vane or rotary screw. When the compressor is working, the air is sucked in through a self-cleaning air filter, and the filter is automatically cleaned by PLC. The air enters a Stage compression, the gas temperature after the first stage compression is higher, and then enters the intercooler for cooling and then enters the second stage compression system. Open check valve, the gas discharged from the compressor pushes open the check valve and enters the exhaust muffler, then enters the first-level aftercooler, the second-level aftercooler, and then enters the exhaust main ...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a replaceable multi-stage filter device for air compressors, which can avoid deformation and air leakage at the joints of pipelines due to load bearing, and can easily replace the filter element and facilitate filtration. The advantages of cleaning the inside of the lower casing of the filter, and the cleaning is relatively clean, solves the problem that the filter element is usually fixed with the upper casing of the filter. When replacing the filter element, it is necessary to remove the bolts one by one to remove the filter element, which is extremely time-consuming. , and the water vapor in the air will condense into water droplets after entering the filter, and the water droplets will absorb dust and mix into mud and accumulate at the bottom of the lower casing, which is difficult to clean. In addition, the existing air compressors that can be replaced When the multi-stage filter device is installed on the pipeline outside the air compressor, it will fall due to its own weight, causing the pipeline to bend, and the connection between the pipeline and the multi-stage filter device will loosen and leak air.

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