Method and a device for monitoring the internal circulation in a fluidized bed reactor, and a reactor provided with such a device
AssigneeGEC Alsthom Stein Industrie
InventorsSilvestre Suraniti, Jean-Xavier Morin
Life of this patent
Estimating the term…
Abstract
A monitoring device for continuously monitoring the internal circulation flow-rate of solid particles in a circulating fluidized bed reactor including a bottom zone into which the fluidization gas is injected, and a top zone surrounded by walls. The device includes a sampling tank for sampling internal circulation solids, which tank is fixed against one of the walls of the reactor and is provided with a fluidization device. A removal pipe is provided for removing the solids from the tank and conveying them to a measuring device for measuring the flow-rate of the solids. A return pipe is provided for returning the solids from the measuring device to the inside of the reactor.
Claims15
In combination with a circulating fluidized bed reactor including a bottom zone into which a fluidization gas is injected, and a top zone surrounded by walls;
- a monitoring device for continuously monitoring the internal circulation flow-rate of solid particles in the circulating fluidized bed reactor by continuously and locally measuring the flow-rate of solids running down along said walls, said monitoring device comprising:
- a sampling tank for sampling internal circulation solids, which tank is fixed against one of said walls of said reactor and is provided with fluidization means;
- a measuring device which measures the flow-rate of said solids;
- a removal pipe for removing said solids from said tank and conveying them to said measuring device for measuring the flow-rate of said solids;
- and
- a return pipe for returning said solids from said measuring device to an inside of said reactor.
A method of continuously monitoring the internal circulation flow-rate of solid particles in a circulating fluidized bed reactor including a bottom zone into which a fluidization gas is injected, and a top zone surrounded by walls, by continuously and locally measuring the flow-rate of solids running down along the walls, said method comprising:
- sampling internal circulation solids in a sampling tank, which tank is fixed against one of the walls of the reactor and is provided with fluidization means;
- removing said solids from said tank and conveying said solids through a removal pipe to a measuring device;
- measuring the flow-rate of said solids;
- and
- returning said solids from the measuring device to an inside of the reactor through a return pipe.
Dependencies are inferred from the claim text.