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Method of construction for high cycle fatigue resistant pressure vessels in hydrogen service

A technology for compressing containers and gas superchargers, which is applied in the field of compressors and can solve problems such as enhancement

Inactive Publication Date: 2019-05-17
HASKEL INT LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gas boosters for hydrogen will be subject to fatigue effects which may be enhanced by hydrogen impingement

Method used

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  • Method of construction for high cycle fatigue resistant pressure vessels in hydrogen service
  • Method of construction for high cycle fatigue resistant pressure vessels in hydrogen service
  • Method of construction for high cycle fatigue resistant pressure vessels in hydrogen service

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Embodiment Construction

[0027] In a compressor cylinder or other pressure vessel, the pressure can cycle between a low suction pressure and a high discharge pressure. This cycling creates stress and eventually cracks in the chamber liner or in the liner on the inside of the liner. High pressure conditions can require the use of thick chamber walls, which also help relieve stress from circulation. Thick walls may not be required for low pressure applications, but pressure cycling can always cause stress and cracks. In these cases, an alternative, low cost method of design and construction is required. One approach that has been taken to achieve high cycle performance in high pressure vessels is to eliminate the possibility of fatigue crack propagation. This is achieved when the container is constructed such that when a compressive load is applied, the crack remains closed. If the crack does not open, then it cannot grow, and the fatigue life is longer.

[0028] The use of a gas booster for pressur...

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PUM

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Abstract

A method and system are described for a gas booster, preferably for use with hydrogen. A linear actuator can provide compression in first and second compression vessels. The liner of the compression vessels can be placed in compressive stress so that any cracks that form do not spread. Compressive stress can be applied using, at least, a shrink fit process or a wire wrapping process. The compressive stress will help the inner liner to resist fatigue and cracking due to pressure cycling and corrosion by materials being compressed in the compression vessels. This also protects the chamber jacketfrom wear and tear.

Description

technical field [0001] The present invention relates to compressors, and more particularly to motive gas boosters. Background technique [0002] Gas boosters are commonly used to deliver gases under pressure for industrial processes or various manufacturing applications. Some gas boosters have piston or linear actuators. Retracting the piston creates a low pressure space within the cylinder where gas is drawn. A locking door traps gas inside the cylinder. The piston then changes direction and presses down on the trapped gas, increasing the pressure of the gas which can be released to another location. The permanent pressurization and depressurization of components within the gas booster, particularly the barrel, can lead to fatigue problems. Fatigue is the weakening of materials due to repeated application of loads. [0003] In addition to fatigue, certain gas boosters used to compress hydrogen suffer from other problems from corrosion. Hydrogen can be particularly det...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/12F04B35/02
CPCF04B9/1095F04B9/113F04B9/1295F04B9/133F04B37/18F04B53/168F04B2015/0822F04B39/126F04B39/122F04B39/0005F04B35/00F04B39/10F04B39/14F04B25/005F04B39/064F04B39/123
Inventor P·马默迪安B·A·巴罗斯P·哈里森G·特泰里安
Owner HASKEL INT LLC