公开(公告)号：DE59809222D1

公开(公告)日：2003-09-11

申请号：DE59809222

申请日：1998-09-16

Applicant: ABB RESEARCH LTD

Inventor： HAFFNER KEN ,  HOEBEL DR ,  RUCK THOMAS

IPC: F23R3/00 ,  F23C7/00 ,  F23D11/40 ,  F23D14/02 ,  F23D14/82 ,  F23D17/00 ,  F23D23/00 ,  F23N5/08 ,  F23R3/30 ,  F23R3/58

Abstract: The burner is designed so that downstream of the fuel injector at least one sensor (400) is arranged for determining a block-back of the flame (80) from the combustion chamber (30) in the inside of the burner, fuel regulation is activated. The fuel supply to the flame is reduced at least temporarily and the fuel amount to the pilot burner is increased simultaneously to maintain a constant turbine output.

公开(公告)号：AT241229T

公开(公告)日：2003-06-15

申请号：AT00960270

申请日：2000-09-25

Applicant: ABB RESEARCH LTD

Inventor： HAFFNER KEN ,  PRETRE PHILIPPE ,  FRITZ OLIVER

IPC: H03K17/95 ,  G01V3/10

公开(公告)号：DE19945640A1

公开(公告)日：2001-04-05

申请号：DE19945640

申请日：1999-09-23

Applicant: ABB RESEARCH LTD

Inventor： HAFFNER KEN

IPC: G01J5/00 ,  G01J5/60 ,  G01N21/71 ,  G01J5/58 ,  F21V9/00 ,  G01N21/39

Abstract: The invention relates to a method and a sensor (1; 1a, 1b) for measuring temperature. Known pyrometric methods of gas temperature measurement already exist. According to the invention, particles (14) in the gas (12) or in the flame are heated to incandescence with a laser pulse (7), the induced continuum heat radiation of the particles (14) is measured pyrometrically, the particle temperature T is calculated and the original gas temperature T DEG is determined from said particle temperature by calculation and/or scaling. The calculation can be carried out with a theoretical model for the energy balance of the heated particles (14) and the scaling with an independent gas temperature measurement. The pyrometric measurements can be analysed monochromatically, bichromatically or with broadband and especially independently of the particle-emissivity. In preferred embodiments, a one or two-dimensional gas temperature profile is determined. The inventive method is contactless, avoids disturbances in the gas flow (13), is characterised by a very high measuring sensitivity and is especially suitable for measuring the temperature of gases or flames in gas turbines.

公开(公告)号：CA2282153A1

公开(公告)日：2000-03-16

申请号：CA2282153

申请日：1999-09-13

Applicant: ABB RESEARCH LTD

Inventor： HAFFNER KEN ,  HOEBEL MATTHIAS ,  RUCK THOMAS

IPC: F23R3/00 ,  F23C7/00 ,  F23D11/40 ,  F23D14/02 ,  F23D14/82 ,  F23D17/00 ,  F23D23/00 ,  F23N5/08 ,  F23R3/30 ,  F23R3/58 ,  F23D14/64

Abstract: In a burner for operating a combustor, the former consists essentially of a rotation generator (100), a transition piece following the rotation generator, and a mixing pipe following this transition piece. Transition piece and mixing pipe form the mixing section (220) of the burner and are located upstream from a combustion chamber (30). In the lower part of the mixing pipe is located a pilot burner system (300) which creates, among other things, a stabilization of the flame front, in particular in the transient load ranges, while minimizing pollutant emissions. A sensor (400) installed in the burner detects a flashback of the flame (80), whereupon the fuel quantity of this flame is at least temporarily reduced and at the same time the fuel quantity for the pilot burner is increased in such a way that the total fuel quantity and thus the turbine output remains constant. This measure prevents a destruction of the burner.