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Title:
SYSTEM FOR MEASURING FLOATING SUBSTANCE IN FINE PARTICLE SHAPE FOR SHIP, AND EXHAUST GAS DILUTION EQUIPMENT
Document Type and Number:
Japanese Patent JP3709434
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a measurement system of a floating substance in a fine particle shape for ships that can measure the floating substance in a fine particle shape in an exhaust gas easily even on a ship that oscillates conforming to the regulation of the International Standardization Organization.
SOLUTION: The system comprises a dilution air supply apparatus 3 having a dry cleaning apparatus 31 and an amount-of-supply adjustment valve 32, exhaust gas dilution equipment 4 for mixing clean air that is transmitted from the dilution air supply apparatus 3 and the exhaust gas in an engine, a carbon gas-measuring instrument 10 for measuring a carbon dioxide gas contained in the exhaust gas in the engine or a diluted exhaust gas that is transmitted from the exhaust gas dilution equipment 4 via a switching cock 8 and a pretreating apparatus 9, and a beta ray absorption type floating fine particle-like substance measuring instrument 5 for measuring floating substances in a fine particle shape in the diluted exhaust gas that is transmitted from the exhaust gas dilution equipment 4. A dilution coefficient is obtained from the carbon dioxide gas measurement value of the exhaust gas of the engine and the diluted exhaust gas by the carbon dioxide gas-measuring instrument 10, and the amount of transmission of clean air in the dilution air supply apparatus 3 is adjusted so that the dilution coefficient becomes an appropriate one.


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Inventors:
Atsushi Ohashi
Application Number:
JP2001273332A
Publication Date:
October 26, 2005
Filing Date:
September 10, 2001
Export Citation:
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Assignee:
Japan Maritime Research Institute
International Classes:
G01N23/12; G01N1/22; G01N15/06; G01N33/00; (IPC1-7): G01N33/00; G01N1/22; G01N15/06; G01N23/12
Domestic Patent References:
JP7005084A
JP8043275A
JP2001066266A
Attorney, Agent or Firm:
Shuichi Hattori



 
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