| 摘要 |
PURPOSE:To reduce the air bubbles in contact with a heat transfer pipe and promote the contact of solid particles with the heat transfer pipe by providing a first inclined wall inclining toward a diffuser plate and extends upward and a second inclined wall opposing against the first inclined wall and extends away from the diffuses plate, and disposing a heat transfer pipe near to the second inclined wall. CONSTITUTION:A first inclined wall 5a and a second inclined wall 5b are formed, and multiple heat transfer pipes 2 are disposed near to the one of side wall 1d inclined away from a diffuser plate 3, i.e. in the space near to the second inclined wall 5b. Therefore, the fluid flow (a) is guided along the first inclined wall 5a where there is less resistance. Air bubbles (b) guided upwardly together with the fluid flow (b) along the first inclined wall 5a do not come in contact with the heat transfer pipes 2, relatively enlarging the contact area of solid particles 4 carried by the fluid flow (b) with the heat transfer pipes 2. Therefore, the frosting to the heat transfer pipes 2 is prevented to improve the efficiency of heat transfer of said heat transfer pipes 2.
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