GAS ODORIZATION APPARATUS

PROBLEM TO BE SOLVED: To allow the instructed flow rate of an odorant to agree with the flow rate of the odorant to be injected into a gas conduit. SOLUTION: An odorant injection nozzle 11 is downwardly installed in the middle of a gas conduit 2 in an inserted manner. An odorant injection chamber 12 is provided at the position surrounding the upper end of the odorant injection nozzle 11 jutting from the gas conduit 2. An odorant feed pipe 8 is horizontally connected to the odorant injection chamber 12. A plurality of small holes 13 are asymmetrically perforated in the sidewall of the upper end of the odorant injection nozzle 11. An odorant 7 is supplied to the odorant injection chamber 12 through the odorant feed pipe 8 and stored once, then allowed to overflow the odorant injection nozzle 11 from the small holes 13 and injected into the gas conduit 2. COPYRIGHT: (C)2004,JPO