Injection method and apparatus for odorising a gas, in a pumping station

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(11)

EP 1 030 098 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	12.12.2001 Bulletin 2001/50

(43)	Date of publication A2:
	23.08.2000 Bulletin 2000/34

(21)	Application number: 99830684.9

(22)	Date of filing: 29.10.1999

(51)	International Patent Classification (IPC)⁷: F17D 1/04

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

19.02.1999 IT BO990071

(71)	Applicant: O.M.T. OFFICINA MECCANICA TARTARINI S.p.A.
	40013 Castel Maggiore (Bologna) (IT)

(72)	Inventor:
	Tartarini, Roberto 40013 Castel Maggiore, Bologna (IT)

(74)	Representative: Lanzoni, Luciano
	c/o BUGNION S.p.A. Via Goito, 18 40126 Bologna 40126 Bologna (IT)

(54)	Injection method and apparatus for odorising a gas, in a pumping station

(57) A method for odorising a gas in a pumping station (1) provided with an intake pipeline (2) for drawing the gas from a distribution line, with a meter (3) and with a pipeline (4) for delivering the gas towards a user, arranged in mutual succession - comprises a phase whereby an odorising liquid is dispersed into the gas transiting through the pipeline (4) for delivering the gas implemented by a controlled injector (10) of odorising liquid and further cyclical phases consisting of supplying the injector (10) with odorising liquid contained in a pressurisable tank (5) of pre-determined volume by means of thrust imparted on the odorising liquid by a flow (6) of gas drawn from the intake pipeline (2) and introduced into the pressurisable tank (5); of re-injecting the flow (6) of gas back into the intake pipeline (2), upstream of the meter (3); and of refilling the pressurisable tank (5) of the odorising liquid with a volume of liquid corresponding to the transferred volume. An injection apparatus (B) operating according to the method is an integral part of the invention.

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