Filling device of piston CO (Carbon monoxide) compressor for HYCO plant

Abstract

The invention relates to a filling device of a piston CO (Carbon monoxide) compressor for an HYCO plant. The filling device comprises a labyrinth ring group, a radial / tangent ring group and a nitrogen seal ring group which are sequentially arranged from a high pressure side to a low pressure side, wherein the labyrinth ring group, the radial / tangent ring group and the nitrogen seal ring group are sequentially embedded into a filling box, an air leakage recovery pipeline is arranged between the radial / tangent ring group and the nitrogen seal ring group, a piston rod capable of doing a reciprocating motion penetrates through the labyrinth ring group, and the radial / tangent ring group and the nitrogen seal ring group and CO flows in gaps between the piston rod and all ring groups. Compared with the prior art, the surface temperature of the piston rod of a part between the piston rod and a filler friction part can be effectively reduced, and the carbon deposition problem of the CO compressor caused by a conventional filler can be eliminated; furthermore, the piston CO compressor has the advantages of being safe and reliable to use and the like.

Description

technical field [0001] The invention relates to a packing device, in particular to a packing device for a piston type CO compressor used in a HYCO factory. Background technique [0002] Oil-free piston CO compressors generally have the problem of carbon deposition, that is, carbon powder is precipitated from CO during the process of CO compression. The precipitated carbon powder will be mixed in the medium and enter the downstream system of the compressor. These toners will bring great trouble and harm to production, such as: [0003] 1. Toner entering the air valve will cause poor closing of the air valve, and may cause accelerated wear of the spring and shorten the service life of the air valve; [0004] 2. The carbon powder in the cylinder will cause abrasive wear of the piston ring, support ring and cylinder, greatly shortening the service life of the piston ring, support ring and cylinder liner; [0005] 3. Carbon powder entering the packing will cause abrasive wear ...

AI Technical Summary

Problems solved by technology

[0003] 1. Toner entering the air valve will cause poor closing of the air valve, and may cause accelerated wear of the spring and shorten the service life of the air valve;

[0004] 2. The carbon powder in the cylinder will cause abrasive wear of the piston ring, support ring and cylinder, greatly shortening the service life of the piston ring, support ring and cylinder liner;

[0005] 3. Carbon powder entering the packing will cause abrasive wear between the packing ring and the piston rod, greatly shortening the service life of the packing and piston rod;

[0006] 4. If there is an outlet filter at the compressor outlet, the filter will be blocked quickly; if there is no outlet filter, the carbon powder will enter the downstream system of the compressor, causing problems for downstream production;

[0008] The development of packing for reciprocating machines should be a relatively mature technology so far, but CO compressors have their particularity: CO is not only flammable, explosive and highly toxic, but also carbon powder will be precipitated from the CO medium under high temperature and high pressure , so the packing of the CO compressor also has its particularity, and the conventional packing design may cause a series of problems in the CO compressor

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