Rectifying member and nozzle provided with the same

A rectifying member which is disposed in a fluid flow path extending in an axial direction of a nozzle body and divides the fluid flow path into a plurality of flow path units,

• wherein the rectifying member comprises a plurality of rectifying elements capable of being disposed or installed adjacently in an axial direction of the fluid flow path,
• the rectifying elements each comprise
• a tubular casing capable of being installed in the nozzle body and
• a lattice or non-lattice division wall structure being formed in the casing and having an axially extending division wall,
• the division wall structure comprises
• a circumferential division wall group being adjacent in a circumferential direction of an inner wall of the casing, to configure a circumferential flow path unit group at a circumferential region of the fluid flow path and
• an inside division wall group being adjacent to the circumferential division wall group, to configure an inside flow path unit group at an inside region of the fluid flow path,
• the circumferential division wall group and the inside division wall group have the following configuration (1) and/or (2):
• (1)
• (1-1) in the lattice division wall structure, as viewed from the axial direction, in the axially adjacent rectifying elements, an intersection of division wall units of an inside division wall group of one rectifying element is positioned within a flow path unit defined with a division wall unit of an inside division wall group of another rectifying element, and
• (1-2) in the non-lattice division wall structure, as viewed from the axial direction, in the axially adjacent rectifying elements, an intersection of division wall units of an inside division wall group of one rectifying element and/or a division wall is positioned within a flow path unit defined with a division wall unit of an inside division wall group of another rectifying element,
• (2) the inside division wall group contains regularly arranged or disposed division wall units, and the circumferential division wall group has no narrow flow path in association with the inner wall of the casing, and
• wherein the lattice division wall structure comprises the circumferential division wall group and the inside division wall group which have the following division wall group (a), and the non-lattice division wall structure comprises the circumferential division wall group and the inside division wall group which have the following division wall group (b) or (c);
• (a) a division wall group comprising
• at least an inside division wall group which has a lattice or grid division walls formed of partition walls extending in vertical and horizontal directions,
• (b) a division wall group comprising
• a plurality of polygonal-shaped division walls being adjacent to each other to form a polygonal-shaped inside flow path unit group, and
• a plurality of extending partition walls traversing the plurality of polygonal-shaped division walls in a radial direction or extending from circumferential walls of the polygonal-shaped division walls in the radial direction to reach the inner wall of the casing,
• (c) a division wall group comprising
• one or more concentric polygonal-shaped or concentric ring-shaped annular walls, provided that, for a division wall structure comprising one annular wall, the inner wall of the casing is regarded as an annular wall,
• a plurality of intermediate radial walls which radially extend from circumferentially different positions, to connect the annular walls radially adjacent to each other, and
• a plurality of extending partition walls radially extending from an outermost annular wall, at positions circumferentially different from the intermediate radial walls, to reach the inner wall of the casing.