Refractory unit for a heat regenerator
AssigneeToshiba Monofrax Co., Ltd.
InventorsKimio Hirata, Yasuo Saito
Life of this patent
Estimating the term…
Abstract
In a heat regenerator, a unit body of a refractory unit has an upper end surface (1a), a lower end surface (1b), an outer wall (1c), an inner wall (1d) and a flow passage (7) which is formed by the inner wall (1c) and extends between both end surfaces (1a, 1b). The outer wall (1c) includes a series of concave and convex strips (4). The inner wall (1d) includes a series of concave and convex strips (5).
Claims15
A refractory unit for a heat regenerator comprising a unit body having a first end surface, a second end surface, an outer wall, an inner wall, a flow passage formed by the inner wall and extending between the first and second end surfaces, the flow passage having a center line, the outer wall including a series of concave and convex strips, the inner wall including a series of concave and convex strips, and four corners adapted to engage with corresponding corners of other adjacent refractory units when said units are arranged, thereby to form a further flow passage defined by the outer walls of the refractory units, each of the corners having a series of concave and convex strips;
- wherein all of the refractory units are substantially the same in shape and include means for engaging with one another in a fitting condition by alternately turning the refractory units upside down.
A refractory unit for a heat regenerator comprising a unit body having a first end surface, a second end surface, an outer wall, an inner wall, and a flow passage formed by the inner wall and extending between the first and second end surfaces, the flow passage having a center line, the outer wall including a series of concave and convex strips, the inner wall including a series of concave and convex strips;
- wherein the refractory unit has a specific surface which is increased by 40% or more as compared with a conventional refractory unit having only a flat wall for defining a flow passage;
- and
- wherein the convex and concave strips of the outer and inner walls include a series of crests and roots which are formed in the shape of bellows, and each top line of the crests is in parallel to the first and second end surfaces;
- and
- wherein the refractory unit has a corner portion formed with a series of concave and convex strips which are adapted to engage with corresponding convex and concave strips of an adjacent refractory unit.
A refractory unit for a heat regenerator comprising a unit body having a first end surface, a second end surface, an outer wall, an inner wall, and a flow passage formed by the inner wall and extending between the first and second end surfaces, the flow passage having a center line, the outer wall including a series of concave and convex strips, the inner wall including a series of concave and convex strips,
- wherein the convex and concave strips of the outer and inner walls include a series of crests and roots which are formed in the shape of bellows, and each top line of the crests is in parallel to the first and second end surfaces;
- and
- wherein the refractory unit has a corner portion formed with a series of concave and convex strips which are adapted to engage with corresponding convex and concave strips of an adjacent refractory unit and a ratio (H/L) of a height (H) of the strips to a width (L) of the strips ranging between 1/8and 1/2.
A refractory unit for a heat regenerator comprising a unit body having a first end surface, a second end surface, an outer wall, an inner wall, and a flow passage formed by the inner wall and extending between the first and second end surfaces, the flow passage having a center line, wherein the refractory unit has four corners which are adapted to engage with corresponding corners of adjacent refractory units thereby to form a further flow passage defined by the outer walls of the refractory units, each of the corners having a series of concave and convex strips;
- and
- wherein all of the refractory units are substantially the same in shape, and engage with one another in a fitting condition by alternately turning the refractory units upside down.
Dependencies are inferred from the claim text.