Apparatus and method for measuring height of solid bed in high-temperature and high-pressure fluidized bed system

A solid bed height measuring method inside a fluidized bed reactor comprising the steps of:

• mounting a lower pressure probe at an upper side as high as a first height from a gas distributor of a fluidized bed reactor, mounting a middle pressure probe at an upper side as high as a second height from the lower probe and mounting an upper pressure probe at the top of the fluidized bed reactor;
• injecting fluidization gas into a gas introducing chamber below the gas distributor;
• measuring pressure values by the lower pressure probe, the middle pressure probe and the upper pressure probe;
• measuring a first differential pressure value, which is a differential pressure between a first pressure value measured by the lower pressure probe and a second pressure value measured by the middle pressure probe, by a first differential pressure gauge and a second differential pressure value, which is a differential pressure between a first pressure value measured by the lower pressure probe and a third pressure value measured by the upper pressure probe, by a second differential pressure gauge;
• and
• calculating a height of the solid bed inside the fluidized bed reactor based on the first differential pressure value and the second differential pressure value by a height arithmetic part.

A solid bed height measuring apparatus in a high-temperature and high-pressure fluidized bed system comprising:

• a lower pressure probe which is mounted at an upper side as high as a first height from a gas distributor of a fluidized bed reactor to measure pressure of the mounted location;
• a middle pressure probe which is mounted at an upper side as high as a second height from the lower probe to measure pressure of the mounted location;
• an upper pressure probe which is mounted at the top of the fluidized bed reactor to measure the inside pressure of the fluidized bed reactor;
• a differential pressure type pressure converter for measuring differential pressure values a first pressure value measured by the lower pressure probe, a second pressure value measured by the middle pressure probe and a third pressure value measured by the upper pressure probe;
• and
• a height arithmetic part for calculating a height of the solid bed inside the fluidized bed reactor based on the differential pressure value measured by the differential pressure type pressure converter.

A solid bed height measuring method inside a fluidized bed reactor comprising the steps of:

• mounting a lower pressure probe at an upper side as high as a first height from a gas distributor of a fluidized bed reactor, mounting a middle pressure probe at an upper side as high as a second height from the lower probe and mounting an upper pressure probe at the top of the fluidized bed reactor;
• injecting fluidization gas into a gas introducing chamber below the gas distributor;
• measuring pressure values by the lower pressure probe, the middle pressure probe and the upper pressure probe;
• measuring a first differential pressure value, which is a differential pressure between a first pressure value measured by the lower pressure probe and a second pressure value measured by the middle pressure probe, and a second differential pressure value, which is a differential pressure between the first pressure value measured by the lower pressure probe and a third pressure value measured by the upper pressure probe, by a differential pressure type pressure converter;
• and
• calculating a height arithmetic constant value from the first differential pressure value and the second height and calculating a height of the solid bed from the second differential pressure value and the first height.