|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||73/232 ; 73/3104 ; 204/15322|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 11 인용 특허 : 0|
The oxygen concentration of a gas mixture primarily of oxygen, nitrogen, and argon is determined by measurement of the shell side flow through a hollow fiber permeable membrane module having a tube side and a shell side. A sample of the gas at a low pressure is applied via a gas regulator to the tube side. Compressed air for purge flow is supplied via a first flow controller to one end of the shell side. A small portion of the tube side flow permeates the membrane, enters the shell of the module and combines with the air purge flow. The measurement of th...
Apparatus for measuring the oxygen concentration of a sample of a gas mixture composed primarily of oxygen, nitrogen and argon; wherein said apparatus comprises a membrane module having hollow fiber permeable membranes with a tube side and a shell side; a source of compressed gas for said sample coupled via a gas regulator to the tube side at a first end of the membrane module, the purpose of the gas regulator being to maintain the module inlet pressure at a given constant value, so that the sample will flow through the tube side of the membrane module a...