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Sealing structure of industrial oil-free reciprocating labyrinth compressor piston rod

A sealing structure and piston rod technology, applied in mechanical equipment, machines/engines, liquid variable capacity machinery, etc., can solve the problems of contaminating lubricating oil, increasing the cost of use, unable to effectively seal the liquid high-carbon condensate, etc. The effect of reducing the cost of use and effective sealing

Active Publication Date: 2011-11-09
WUXI COMPRESSOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Existing problems: 1. The labyrinth packing seal cannot effectively seal the liquid high-carbon condensate; 2. The high-carbon condensate flowing into the crankcase seriously pollutes the lubricating oil, forcing frequent replacement of the lubricating oil, which greatly increases the cost of use

Method used

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  • Sealing structure of industrial oil-free reciprocating labyrinth compressor piston rod
  • Sealing structure of industrial oil-free reciprocating labyrinth compressor piston rod
  • Sealing structure of industrial oil-free reciprocating labyrinth compressor piston rod

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Embodiment Construction

[0020] See figure 1 , figure 2 , which includes a piston rod 1 and a process air sealing system, the process air sealing system is set on the outer edge of the piston rod 1, the lower part of the process air sealing system is connected with a scraper oil collection system, and the scraper oil collection system is set on the outer edge of the piston rod 1;

[0021] The process gas sealing system specifically includes four packing seals and leakage gas discharge channels, spacer ring 2, discharge gland 3, gas outlet hinged pipe joint 4, discharge gland 3 includes gas outlet pipeline 5, oil outlet pipeline 6, gas outlet pipeline 5, The oil outlet pipes 6 are located inside the two sides of the discharge gland 3 respectively. Four packing seals and leakage gas discharge passages are arranged from top to bottom and fitted on the outer edge of the piston rod 1. The lowermost packing seal and leakage gas discharge passages 7 The upper end surface is supported by a distance ring 2, ...

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Abstract

The invention relates to a sealing structure of an industrial oil-free reciprocating labyrinth compressor piston rod. The invention can fulfill the effective sealing action to liquid high carbon condensate and lower the use cost. The sealing structure comprises a piston rod and a process gas sealing system, wherein the process gas sealing system is sleeved at the outer edge of the piston rod. Thesealing structure is characterized in that the lower part of the process gas sealing system is connected with an oil scraping and collecting system, and the oil scraping and collecting system is sleeved at the outer edge of the piston rod.

Description

technical field [0001] The invention relates to the technical field of sealing of an oil-free reciprocating labyrinth compressor, in particular to a sealing structure for a piston rod of an industrial oil-free reciprocating labyrinth compressor. Background technique [0002] Piston reciprocating compressors are general-purpose machinery widely used in various industries. In order to effectively compress the gas, in addition to ensuring the seal between the piston and the cylinder wall, the seal between the piston rod and the cylinder must also be ensured. At present, the packing seal is mainly used between the piston rod and the cylinder, and the contact seal has been developed into a non-contact labyrinth seal, which avoids the problems of packing replacement and medium pollution caused by lubricating oil and packing debris. However, if the process gas contains a variety of high-carbon olefin components, the high-carbon olefins will be liquefied into condensates due to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/00
Inventor 徐晓梅戴晓洲魏礼开李玉艳
Owner WUXI COMPRESSOR CO LTD
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