Abstract: A degassing apparatus capable of preventing cross-contamination is provided. A degassing apparatus 1 includes degassing modules 10, 20, and 30 each having a tube unit 12 that is a gas permeable membrane separating a fluid circulation space S1 and a reduced-pressure space S2 from each other, vacuum piping 40 communicatively connected to the reduced-pressure spaces S2, a discharge device 50 that discharges gas in the reduced-pressure spaces S2 through the vacuum piping 40, atmospheric release piping 60 communicatively connected to the reduced-pressure spaces S2, an atmospheric release valve 70 capable of introducing atmosphere into the reduced-pressure spaces S2 through the atmospheric release piping 60, and a control unit 80 that controls the operation of the discharge device 50 and the atmospheric release valve 70.

Abstract: A tube unit includes multiple tubes, a bundling portion that bundles end portions of the tubes, and pipe elements that are inserted into respective end portions of the tubes and support the end portions of the tubes from inside. A degassing module includes the tube unit and a housing in which the tube unit is accommodated and that separates inside spaces inside the respective tubes from an outside space outside the tubes. In addition, each tube is a tubular membrane that allows gas to pass therethrough and prohibits liquid from passing therethrough. The housing has an inside-space opening that is in communication with the inside spaces of the tubes and an outside-space opening that is in communication with the outside space of the tubes.

Abstract: Provided is a hollow fiber membrane module that exhibits excellent durability even when a chemical such as a radical polymerizable compound is used for a separation or mixing process. Also provided is a method for producing the hollow fiber membrane module in a highly productive manner. More specifically, there is provided a hollow fiber membrane module at least including a tubular body, a cap, a hollow fiber membrane, and an end seal portion, wherein at least a liquid contacting portion of the end seal portion is sealed with a cured product of a curable resin composition including an epoxy resin, and wherein the epoxy resin includes a polyglycidyl ether of a polycondensate of an aromatic compound containing a phenolic hydroxyl group and an aromatic compound containing a formyl group and a phenolic hydroxyl group, and there is provided a method for producing the module.

Abstract: A tube unit includes multiple tubes and bundling portions that bundle end portions of respective tubes at opposite ends of the tubes. At least one of the end portions of respective tubes has a tube wall portion that tubularly extends in an extension direction of the tubes and also has a protrusion protruding radially outward from the tube wall portion.

Abstract: A hollow fiber degassing module includes: a hollow fiber membrane bundle including a plurality of hollow fiber membranes bundled into a cylindrical shape; a housing that houses the hollow fiber membrane bundle, includes a liquid supply port and a liquid discharge port that are formed in communication with spaces between the plurality of hollow fiber membrane, and further includes a suction port formed in communication with inner spaces of the plurality of hollow fiber membranes; and an outer support having a plurality of openings formed therein and disposed between the hollow fiber membrane bundle and the housing.

Abstract: A hollow fiber degassing module includes: a cylinder; a first lid having a liquid supply port; a second lid; a liquid inflow portion that includes a cylindrical main body being in communication with the liquid supply port inside the cylinder; a hollow fiber membrane bundle that is provided inside the cylinder and that includes multiple hollow fiber membranes; a liquid outlet; a first air outlet that is provided to any one of the first lid and the second lid and connected to the inside of the hollow fiber membranes; and a bubble outlet that is provided to the cylinder.

Abstract: A hollow fiber degassing module includes: a cylinder; a first lid having a liquid supply port; a second lid; a liquid inflow portion that includes a cylindrical main body being in communication with the liquid supply port inside the cylinder; a hollow fiber membrane bundle that is provided inside the cylinder and that includes multiple hollow fiber membranes; a liquid outlet; a first air outlet that is provided to any one of the first lid and the second lid and connected to the inside of the hollow fiber membranes; and a bubble outlet that is provided to the cylinder.

Abstract: A hollow fiber degassing module includes: a cylinder; a first lid having a liquid supply port; a second lid; a liquid inflow portion that includes a cylindrical main body being in communication with the liquid supply port inside the cylinder; a hollow fiber membrane bundle that is provided inside the cylinder and that includes multiple hollow fiber membranes; a liquid outlet; a first air outlet that is provided to any one of the first lid and the second lid and connected to the inside of the hollow fiber membranes; and a bubble outlet that is provided to the cylinder.

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.

Abstract: Provided is a hollow fiber membrane module that exhibits excellent durability even when a chemical such as a radical polymerizable compound is used for a separation or mixing process. Also provided is a method for producing the hollow fiber membrane module in a highly productive manner. More specifically, there is provided a hollow fiber membrane module at least including a tubular body, a cap, a hollow fiber membrane, and an end seal portion, wherein at least a liquid contacting portion of the end seal portion is sealed with a cured product of a curable resin composition including an epoxy resin, and wherein the epoxy resin includes a polyglycidyl ether of a polycondensate of an aromatic compound containing a phenolic hydroxyl group and an aromatic compound containing a formyl group and a phenolic hydroxyl group, and there is provided a method for producing the module.

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 a gap between the hollow fiber membranes from a hollow portion of the hollow fiber membrane bundle and depressurizing the inside of the hollow fiber membrane, the hollow fiber degassing module including a support body which contacts an inner peripheral surface of the hollow fiber membrane bundle.

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.

Abstract: A process for manufacturing a deaerating hollow fiber module with no core, including the steps of wrapping a sheet containing a multiplicity of hollow fibers around a temporary core; retaining in tubular form the sheet wrapped around the temporary core; and removing the temporary core from the sheet retained in tubular form.

Abstract: A process for manufacturing a deaerating hollow fiber module with no core, including the steps of wrapping a sheet containing a multiplicity of hollow fibers around a temporary core; retaining in tubular form the sheet wrapped around the temporary core; and removing the temporary core from the sheet retained in tubular form.