Patent ID: 8146444

Claim:
An ultra filtration system for an on-line analyzer for purifying and analyzing a test sample, the ultra filtration system comprising: a hollow fiber module having a hollow fiber filter inside a housing, the hollow fiber filter being connected to a lower tank; a first pipe having one end connected to a first pump submerged in a raw water test sample and another end connected to the housing's lower portion, and including a first valve; a second pipe connected to the housing's upper portion; a third pipe connected to the housing's upper portion, and including a third valve; a pipe having one end connected to the housing's lower portion and another end connected to the second pipe, and including a second valve; a fourth pipe divided and connected with a fifth pipe and a ninth pipe, the fifth pipe having one end connected to the lower tank and another end connected to a fourth valve, and the ninth pipe being connected to a fifth valve; a sixth pipe having one end connected to the fourth valve and another end connected to the fifth valve, and including a second pump and a flowmeter; a seventh pipe having one end connected to the fifth valve and another end connected to a test sample collection tank; a eighth pipe having one end connected to the fourth valve and the bottom of the test sample collection tank and another end connected to an analyzer, and including a third pump; and a tenth pipe connected to the test sample collection tank to overflow a test sample.