초록 ▼

A bed height of a fluidized bed is detected which influences reaction of a fluidized-bed equipment. In the fluidized-bed equipment in which a fluidized particle is put into the vessel, physical properties at a plurality of points within the vessel are measured in a height direction thereof. An inter

A bed height of a fluidized bed is detected which influences reaction of a fluidized-bed equipment. In the fluidized-bed equipment in which a fluidized particle is put into the vessel, physical properties at a plurality of points within the vessel are measured in a height direction thereof. An interior of the vessel is divided into upper and lower two regions. Physical property distribution curves of the respective regions are found, to find an intersection between the two curves as a bed height. Thus, it is possible to find the bed height of the fluidized bed which influences the reaction of the fluidized-bed equipment. An operating quantity which influences the reaction can be adjusted or regulated accurately.

대표청구항 ▼

A system for determining bed height in a fluidized-bed equipment comprising: a vessel having a first region high in concentration of a granular or liquid substance and a second region low in said concentration, means for measuring a physical property within said vessel, means for selecting, an inter

A system for determining bed height in a fluidized-bed equipment comprising: a vessel having a first region high in concentration of a granular or liquid substance and a second region low in said concentration, means for measuring a physical property within said vessel, means for selecting, an interior of said vessel, two upper and lower optional regions and producing two expressions for fitting expressing physical property distributions in the respective regions, as a single exponential function, from physical property measuring values of the respective regions, to find an intersection between the two expressions, repeating producing of the two expressions and finding of an intersection in different selected regions, and determining a bed height corresponding to an intersection in which a correlation between a measuring value and the expressions for fitting is the best, and display means for displaying the physical property distributions produced from the two expressions for fitting in the selected combination.