Fluid mixing unit with meandering flow through partitions of a porous body

A fluid mixing unit comprising:

• a container to which a first fluid and a second fluid each are supplied:
• a cylindrical body formed of a porous body that partitions an inside of the container into a central flow space and a peripheral flow space surrounding the central flow space, and to allow the fluid to move each wav between the central flow space and peripheral flow space:
• a first supply port provided in the container to supply the first fluid to said central flow space:
• a second supply port provided on one end side of the container in an axial direction of the cylindrical body to supply the second fluid to said peripheral flow space;
• an outlet which is provided on an other end side of the container in the axial direction of the cylindrical body so as to be open only to one flow space of said central flow space and said peripheral flow space and from which a mixed fluid of the first fluid and the second fluid flows out;
• and
• closing members provided in a plurality of stages along the axial direction that alternately close a right side and a left side of the one flow space relative to the axial direction so as to define a meandering flow path of the first fluid and the second fluid in the one flow space to achieve the mixed fluid;
• and
• in which each one stage of the plurality of stages comprises a discrete annular member as the corresponding closing member, in which the container and cylindrical body extend longitudinally in an axial direction, and wherein the discrete annular member extends transverse to the axial direction and is in contact with the cylindrical body along a 360 degree outer wall circumference of the cylindrical body.

A fluid mixing unit comprising:

• a container to which a first fluid and a second fluid each are supplied:
• a cylindrical body formed of a porous body that partitions an inside of the container into a central flow space and a peripheral flow space surrounding the central flow space, and to allow the fluid to move each wav between the central flow space and peripheral flow space:
• a first supply port provided in the container to supply the first fluid to said central flow space:
• a second supply port provided on one end side of the container in an axial direction of the cylindrical body to supply the second fluid to said peripheral flow space;
• an outlet which is provided on an other end side of the container in the axial direction of the cylindrical body so as to be open only to one flow space of said central flow space and said peripheral flow space and from which a mixed fluid of the first fluid and the second fluid flows out;
• and
• closing members provided in a plurality of stages along the axial direction that alternately close a right side and a left side of the one flow space relative to the axial direction so as to define a meandering flow path of the first fluid and the second fluid in the one flow space to achieve the mixed fluid;
• and
• further comprising:
• a raw material unit that supplies raw material liquid containing fine crystals of a target substance as one fluid of the first fluid and the second fluid, and in which the raw material unit is connected to one of the first supply port and second supply port corresponding to said one fluid;
• a poor solvent supply unit that supplies poor solvent as another fluid of the first fluid and the second fluid, and in which the poor solvent unit is connected to an other of the first supply port and the second supply port;
• and
• an aging pipe connected to the outlet and which precipitates first crystals of the fine crystals of the target substance.

A fluid mixing unit comprising:

• a container to which a first fluid and a second fluid each are supplied;
• a cylindrical body formed of a porous body that partitions an inside of the container into a central flow space and a peripheral flow space surrounding the central flow space, and to allow the fluid to move each way between the central flow space and peripheral flow space;
• a first supply port provided in the container to supply the first fluid to said central flow space;
• a second supply port provided on one end side of the container in an axial direction of the cylindrical body to supply the second fluid to said peripheral flow space;
• an outlet which is provided on an other end side of the container in the axial direction of the cylindrical body so as to be open only to one flow space of said central flow space and said peripheral flow space and from which a mixed fluid of the first fluid and the second fluid flows out;
• and
• closing members provided in a plurality of stages along the axial direction that alternately close a right side and a left side of the one flow space relative to the axial direction so as to define a meandering flow path of the first fluid and the second fluid in the one flow space to achieve the mixed fluid;
• and
• wherein each one closing member of said closing members has a first portion extending in a transverse direction from a closed side of said left side and right side of the one flow space, and each one closing member has a second portion extending from the first portion toward an open side of said left side and right side of the one flow space;
• wherein said first portion has a first surface facing a first end of the container and has a second surface facing a second end of the container opposite the first end;
• wherein said second portion has a first inclined surface in connection with the first surface of the first portion and is inclined relative to the first surface, the first inclined surface extending from the first portion to an end of the closing member at the open side of the one flow space;
• wherein said second portion has a second inclined surface in connection with the second surface of the first portion and is inclined relative to the second surface, the second inclined surface extending from the first portion to the end of the closing member at the open side of the one flow space;
• and
• wherein the thickness of the second portion decreases along the second portion toward the open side of the one flow space.