Gas purifying device
AssigneeDaikin Industries, Ltd.
InventorsMasao Ohno, Yoshio Sahara, Katsuhiro Tetsuya, Takao Matsumoto
Life of this patent
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Abstract
A gas purifying device has a re-circulating section configured to re-circulate liquid discharged from an element positioned on a downstream side of an airflow to reflow to a liquid circulation system path of an element positioned on an upstream side of the air flow. The liquid dissolves and removes low-concentration contaminants by gas-liquid contact. The liquid is discharged from the element on the downstream side and is made to reflow to the element on the upstream side through the re-circulating section. Contaminants are dissolved and removed by gas-liquid contact between the liquid and non-purified air containing high-concentration contaminants.
Claims4
A gas purifying device comprising:
- a plurality of impurity removal elements configured to separate and remove contaminants from non-purified air with liquid by performing gas-liquid contact through a porous film, the elements being arranged in multiple stages from an upstream side to a downstream side of an air flow, each element being provided with a liquid supply system passage configured to supply fresh liquid, a liquid circulation system passage, and a re-circulating section configured to re-circulate liquid discharged from one of the elements that is located at the downstream side of the air flow to one of the elements that is located at the upstream side of the air flow.
Dependencies are inferred from the claim text.