公开(公告)号：JPH08233215A

公开(公告)日：1996-09-10

申请号：JP2548396

申请日：1996-02-13

Applicant: ABB MANAGEMENT AG

Inventor： FURANTSU YOOSU ,  YANSON RIYUU

IPC: F23C99/00 ,  F02C7/22 ,  F02C9/26 ,  F23N5/16 ,  F23C11/00

Abstract: PROBLEM TO BE SOLVED: To eliminate the need for providing an oscillation damper in a place, where it suffers a thermally heavy load such as in a combustion chamber by allowing a controller to influence the rotating speed and movement of a perforated plate according to pressure oscillations that depend on the load in the combustion chamber. SOLUTION: This device attenuates thermoacoustic oscillations generated, when a fuel 2 flowing into a combustion chamber 17 is burnt. A perforated plate 3, having an eccentric opening 4 through which the fuel 2 flows and rotating coaxially with a fuel conduit 1, is disposed in the fuel conduit 1 communicating with a burner 12, such that it is vertically movable with respect to the rotating axis. Rotating means 10 and moving means 11 for the perforated plate 3 are connected to means for measuring the amplitude and frequency of pressure oscillations in the combustion chamber 17 via a controller 18, which influences the rotating speed and movement of the perforated plate 3 corresponding to the pressure oscillations, which depend on the load in the combustion chamber 17.

公开(公告)号：JPH08226621A

公开(公告)日：1996-09-03

申请号：JP33533495

申请日：1995-12-22

Applicant: ABB MANAGEMENT AG

Inventor： RORUFU ARUTOHAUSU ,  FURANTSU YOOSU ,  CHINO MARUTEIN MAARINGU

IPC: F23R3/28 ,  F23D14/22 ,  F23D14/26 ,  F23D17/00 ,  F23R3/36

Abstract: PROBLEM TO BE SOLVED: To provide a method of feeding fuel and an apparatus thereof, which has wide range of use and low in NOx emission by stabilizing combustion at a burner. SOLUTION: A burner is structured by arranging a pilot gas conduit pipe 15 only at the zone of a burner head 13 and as a parallel hole 15 with at least one axis inside the inner wall 4 of a main gas pipe 2. As a result of this, a pilot gas 16 is fed into an inside burner chamber 10, separately from fuel 11 and a blower air 12.

公开(公告)号：JPH07310909A

公开(公告)日：1995-11-28

申请号：JP11620595

申请日：1995-05-15

Applicant: ABB MANAGEMENT AG

Inventor： RORUFU ARUTOHAUSU ,  YAUUPIN CHIYOU ,  FURANTSU YOOSU ,  YAAKOPU YOTSUTO KERAA

IPC: F23D17/00 ,  F23C7/02 ,  F23M9/00 ,  F23M9/02 ,  F23R3/18 ,  F23R3/34 ,  F23R3/36

Abstract: PURPOSE: To provide means for inducing stabilization of flame in a combustion chamber having self-ignition while minimizing emission of noxious substances. CONSTITUTION: An inflow zone 5 has vortex generators, of which a plurality are arranged next to one another over the periphery of a duct through which flow occurs. A premixing zone 7 follows downstream of the inflow zone 5, into which premixing zone 7 a gaseous and/or liquid fuel 9 can be injected. Between the premixing zone 7 and a combustion zone 11, the transition is characterized by a jump 12 in cross-section which induces initial cross-section of flow of the combustion zone 11.

公开(公告)号：JPH09170707A

公开(公告)日：1997-06-30

申请号：JP30524996

申请日：1996-11-15

Applicant: ABB MANAGEMENT AG

Inventor： FURANTSU YOOSU ,  MARUTSUERU SHIRUBATSUHA

IPC: F23R3/18 ,  F23C99/00 ,  F23N5/16 ,  F23C11/00

Abstract: PROBLEM TO BE SOLVED: To reduce and attenuate the thermoacoustic pressure vibration by connecting the output terminal of a controller to means for electrically controlling the flame in a combustion chamber. SOLUTION: Fuel is supplied via a fuel conduit 5 and combustion air is suppled via an air intake port 4 to a burner 3, and the thermoacoustic pressure vibration generated by the irregular combustion of a flame 16 is detected by a pressure sensor 6 provided in a combustion chamber 1. A voltage source 11 and an electrode 14 are connected to the sensor 6 via a controller 10, and the electrode 14 is conductively connected to a thermal insulating shield 12 which is insulation-installed. Thus, the thermoacoustic vibration pressure relative to the load generated by the combustion of the flame 16 can be controlled to as to be lowered and attenuated.

公开(公告)号：JPH09133326A

公开(公告)日：1997-05-20

申请号：JP27485896

申请日：1996-10-17

Applicant: ABB MANAGEMENT AG

Inventor： FURANTSU YOOSU ,  MARUTSUERU SHIYUTARUDAA

IPC: F23D11/40 ,  F23D11/00 ,  F23D11/10

Abstract: PROBLEM TO BE SOLVED: To reduce calking trend to slight value by reducing the structure size and decreasing the pressure loss. SOLUTION: In the air blast spray nozzle 2 for operating a burner 1 to be operated by liquid fuel and gas fuel, an intermediate wall 18 between both inner and outer air passages 14 and 13 is held via inner and outer support members 21, which have sliding positions 28 to make it possible to form as swirl generating blade. The atomizing edge 19 of the nozzle 2 is bent toward a nozzle axis 11.

公开(公告)号：JPH07293886A

公开(公告)日：1995-11-10

申请号：JP8580495

申请日：1995-04-11

Applicant: ABB MANAGEMENT AG

Inventor： RORUFU ARUTOHAUSU ,  FURANTSU YOOSU

IPC: F23D14/26 ,  F23D17/00 ,  F23D23/00 ,  F23R3/12 ,  F23R3/28 ,  F23R3/34 ,  F23R3/46

Abstract: PURPOSE: To enhance the efficiency of a turbine while reducing emission of NOx. CONSTITUTION: In an operating method of the combustion chamber 1 of a gas turbine having a premix burner comprising a main burner 3 and an ignition burner 2 and burning a gaseous or liquid fuel, the main burner 3 functions as a mixer for conditioning a combustion air mixture and the main burner 3 is ignited by the ignition burner 2. Flame front of the main burner 3 is stabilized by the flame front of the ignition burner 2 constantly during operation of the combustion chamber 1.

公开(公告)号：JPH0777316A

公开(公告)日：1995-03-20

申请号：JP18858194

申请日：1994-08-10

Applicant: ABB MANAGEMENT AG

Inventor： ADONAN EROGURU ,  FURANTSU YOOSU ,  PEETAA NOBUATSUETSUKU ,  PEETAA ZENIOORU

IPC: B05B1/00 ,  F23D11/10 ,  F23D14/22 ,  F23D14/78 ,  F23D17/00

Abstract: PURPOSE: To enhance combustion efficiency while reducing emission of harmful components by providing an appropriate nozzle and a cooling air supply unit surrounding a lance like an outer shell and cooling the lance and fuel with cooling air thereby preventing early firing. CONSTITUTION: A fuel lance for use in a combustion chamber defined by the casing of a gas turbine includes a liquid fuel pipe 7 surrounded by an elongated lance outer shell 11 and secured to the easing by a holding arm projecting sideways, a gas pipe 9 forming a gas passage around the liquid fuel pipe 7, and the lance outer shell 11 forming an air passage 10 around the gas pipe 9. An air/fuel nozzle 12 is provided on the side at the downstream end part of the fuel lance, a gas pipe 9 is provided with a gas nozzle 15 for ejecting gas from a gas passage 8 together with air, and the liquid fuel pipe 7 is provided with a liquid fuel nozzle 18 for ejecting liquid fuel through the air passage 10 and the air/fuel nozzle 12.