Hollow-fiber degassing module and inkjet printer
AssigneeDIC Corporation
InventorsYouhei Suganuma, Kazumi Oi
Life of this patent
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Abstract
Provided is a hollow fiber degassing module which includes a hollow fiber membrane bundle obtained by bundling a plurality of hollow fiber membranes in a cylindrical shape and a cylindrical body receiving the hollow fiber membrane bundle and extending in an axial direction and degasses a liquid by supplying the liquid to the outside of the hollow fiber membrane and depressurizing the inside of the hollow fiber membrane, in which a hollow fiber membrane packing ratio which is a ratio of a sum of an apparent cross-sectional area of the hollow fiber membrane with respect to an apparent cross-sectional area of the hollow fiber membrane bundle is in a range of 43% or less.
Claims10
A hollow fiber degassing module which includes a hollow fiber membrane bundle obtained by bundling a plurality of hollow fiber membranes in a cylindrical shape and a cylindrical body receiving the hollow fiber membrane bundle, the cylindrical body extending in an axial direction, the hollow fiber degassing module configured to degas a liquid by supplying the liquid to the outside of the hollow fiber membrane and by depressurizing the inside of the hollow fiber membrane,
- wherein a hollow fiber membrane packing ratio which is a ratio of a sum of an apparent cross-sectional area of the hollow fiber membrane with respect to an apparent cross-sectional area of the hollow fiber membrane bundle is in a range of 43% or less,
- wherein a gap is formed between the cylindrical body and the hollow fiber membrane bundle, and
- wherein the hollow fiber membrane bundle is eccentric with respect to the center axis of the cylindrical body.
An inkjet printer in which ink stored in an ink storage portion is supplied to an inkjet head through an ink passage, the inkjet printer comprising:
- a hollow fiber degassing module is attached to the ink passage,
- wherein the hollow fiber degassing module includes a hollow fiber membrane bundle obtained by bundling a plurality of hollow fiber membranes in a cylindrical shape and a cylindrical body receiving the hollow fiber membrane bundle, the cylindrical body extending in an axial direction, the hollow fiber degassing module configured to degas a liquid by supplying the liquid to the outside of the hollow fiber membrane and by depressurizing the inside of the hollow fiber membrane,
- wherein a hollow fiber membrane packing ratio which is a ratio of a sum of an apparent cross-sectional area of the hollow fiber membrane with respect to an apparent cross-sectional area of the hollow fiber membrane bundle is in a range of 43% or less,
- wherein a gap is formed between the cylindrical body and the hollow fiber membrane bundle, and
- wherein the hollow fiber membrane bundle is eccentric with respect to the center axis of the cylindrical body.
A liquid degassing method of degassing a liquid, the liquid degassing method comprising steps of:
- supplying the liquid to a gap between hollow fiber membranes from a hollow portion of a hollow fiber membrane bundle;
- and
- depressurizing the inside of the hollow fiber membrane using a hollow fiber degassing module,
- wherein the hollow fiber degassing module includes a hollow fiber membrane bundle obtained by bundling a plurality of hollow fiber membranes in a cylindrical shape and a cylindrical body receiving the hollow fiber membrane bundle, the cylindrical body extending in an axial direction, the hollow fiber degassing module configured to degas a liquid by supplying the liquid to the outside of the hollow fiber membrane and by depressurizing the inside of the hollow fiber membrane,
- wherein a hollow fiber membrane packing ratio which is a ratio of a sum of an apparent cross-sectional area of the hollow fiber membrane with respect to an apparent cross-sectional area of the hollow fiber membrane bundle is in a range of 43% or less,
- wherein a gap is formed between the cylindrical body and the hollow fiber membrane bundle, and
- wherein the hollow fiber membrane bundle is eccentric with respect to the center axis of the cylindrical body.
Dependencies are inferred from the claim text.