Rubber cartridge resistant to high temperature steam, compression packer and sealing method

Abstract

The invention relates to the field of sealing, in particular to a high-temperature steam-resistant rubber cartridge, a compression packer with the rubber cartridge and a sealing method, wherein the rubber cartridge includes a sealing body, and the sealing body has a first sealing section and a second sealing section. Two sealing sections; the first sealing section is easier to be compressed than the second sealing section. When it is compressed axially, the first sealing section performs the first radial protrusion to seal, while the second sealing section performs the radial first sealing section. The second protrusion is not enough for sealing; the second sealing section is set close to the steam hole that injects high-temperature steam, and when the steam hole ejects high-temperature steam, the second sealing section is affected by the high-temperature steam and continues to carry out the third radial protrusion. Sealing is performed to prevent the high-temperature steam from directly contacting the first sealing section or reduce the time during which the high-temperature steam directly contacts the first sealing section. The rubber cartridge of the invention can realize low-temperature sealing and high-temperature sealing, can play a sealing role and can withstand high-temperature steam.

Description

Technical field [0001] The invention relates to the field of sealing, in particular to a high-temperature steam resistant rubber cylinder, a compression packer with the rubber cylinder, and a sealing method. Background technique [0002] The rubber tube materials include metal materials (aluminum, lead, indium, stainless steel, etc.), non-metal materials (rubber, plastic, ceramic, graphite, etc.), composite materials (such as rubber-asbestos board, aerogel felt-polyurethane), but The most used are rubber-like elastomer materials. [0003] When the rubber cylinder needs to bear a certain pressure to promote its deformation to seal, the deformability of the rubber cylinder itself needs to be considered. If the deformation is insufficient, it will not be able to seal; if the deformation is too large, the rubber cylinder may be crushed. Failure, loss of recovery ability. In addition, it needs to be considered that when the glue cylinder is subjected to high temperature steam, the glu...

AI Technical Summary

Problems solved by technology

[0003] When the rubber tube needs to withstand a certain pressure to make it deform and seal, it is necessary to consider the deformation capacity of the rubber tube itself. If the deformation is insufficient, it will not be able to perform the sealing function; if the deformation is too large, it may cause the rubber tube to collapse due to crushing. failure, loss of resilience

In addition, it needs to be considered that when the rubber cartridge is subjected to high temperature steam, the rubber cartridge is also prone to failure and loses its recovery ability

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