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公开(公告)号：JPH11118108A
公开(公告)日：1999-04-30
申请号：JP23728598
申请日：1998-08-24
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , STEINBACH CHRISTIAN DR , RUCK THOMAS
IPC: F23C7/00 , F23D11/24 , F23D11/38 , F23D11/40 , F23D14/24 , F23D14/40 , F23D17/00 , F23R3/02 , F23R3/12 , F23R3/36
Abstract: PROBLEM TO BE SOLVED: To ensure reliable operation and proper arrangement of flames, and to allow used fuel to be completely premixed, by improving a burner for heat generation having a swirl generator which is arranged on the upstream side of a combustion zone. SOLUTION: In a burner for heat generation having a vortex flow generator 100 which is arranged on the upstream side of a combustion zone, the combustion air 115 which is made to swirl in the swirl generator, is related to the fuel to be injected, in such a manner that the injection angle of the injection flow of the fuel which belongs to a fuel nozzle is approximately equivalent to the mounting angle of the part which forms the swirl generator to a burner axis 60.
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公开(公告)号：JPH11190504A
公开(公告)日：1999-07-13
申请号：JP28641498
申请日：1998-10-08
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , GRIFFIN TIMOTHY , WINKLER DIETER
Abstract: PROBLEM TO BE SOLVED: To improve efficiency of a gas turbine plant, by a method wherein middle and/or low calorie fuel is injected into axial and/or coaxial direction by at least one set of injecting means arranged in a whirling current generator, into which gaseous and/or liquid fuel is injected. SOLUTION: A mixing division 2 abutting on a whirling current generator 1, formed so as to have a conical configuration and loaded several times by combustion air stream flowing thereinto tangentially, is constituted of shifting pieces 23 having a plurality of shifting passages 22. An injection nozzle 4, injecting liquid fuel into the whirling current generator 1, is provided at the upper part of axial center of the same while a plurality of fuel supplying conduits 5, supplying middle calorie fuel, are provided coaxially around the injection nozzle 4. On the other hand, the fuel supplying conduits 5 penetrate the shell plates 6, 7 of the whirling current generator. In this case, the middle calorie fuel, finely distributed through a plurality of optimum injection nozzles 8, is mixed additionally into the air stream, formed in the whirling current generator 1, in the axial direction or coaxial direction.
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公开(公告)号：JPH10184392A
公开(公告)日：1998-07-14
申请号：JP35130197
申请日：1997-12-19
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , GRIFFIN TIMOTHY DR
IPC: F02C7/22 , F02C3/20 , F02C3/28 , F02C3/30 , F02C6/00 , F02C7/224 , F02C9/28 , F23R3/00 , F23R3/40
Abstract: PROBLEM TO BE SOLVED: To prevent a pressure collision in a burner by greatly effectively stabilizing flame in a lean premixing burner compared with conventional pilot flame. SOLUTION: In a method for operating a gas turbo-device, the gas turbo- device comprises a compressor 1, a combustor 5, a turbine 2 and a generator 3. Fuel is mixed with air compressed by the compressor 1 before combustion in a premixer 18 of the combustor 5 and is burned in the combustion room 19. Compressed air supplied via a partial air introduction pipe 15 is mixed with fuel supplied via a partial fuel introduction pipe 16 and is introduced into a reactor 10 coated by a catalyst. Fuel-air mixture is transformed into synthetic gas including hydrogen, carbon monoxide, remaining air and remaining fuel and the synthetic gas is injected into an area in the combustion room 5 where flame is stable.
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公开(公告)号：JPH11223306A
公开(公告)日：1999-08-17
申请号：JP33132098
申请日：1998-11-20
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , KNOEPFEL HANS PETER , RUCK THOMAS
Abstract: PROBLEM TO BE SOLVED: To obtain excellent mixing, the minimum harmful substance emission and the maximum efficiency when low-calory fuel is used by a method wherein a second passage for guiding fuel is finished at the upstream of shifting part, whereat a tangential inflow passage is shifted into the inner chamber of a swirl generator, while retaining an interval. SOLUTION: Partial bodies 101-104 are provided with passages 121-124, guided into tangential directions respectively, while gas fuel 117 is guided through these passages. The fuel 117 is injected into tangential inflow passages 191b-104b, guiding fuel air through inflow slits 131, extending into respective axial directions. The fuel 117 is mixed into the fuel air 115 at the upstream of a shifting part, whereat the tangential inflow passages 101b-104b are shifted into the inner chamber 118, while retaining a predetermined interval. According to this method, two medium gas are pre-mixed until they are advanced into the inner chamber 118. This effect can be obtained by the constitution that the passages 121-124 are provided on the partial bodies 101-104 as guides independently.
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5.发明专利
公开(公告)号：JPH1172231A
公开(公告)日：1999-03-16
申请号：JP12754398
申请日：1998-05-11
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , REH LOTHAR , WANG YUNHOGN
Abstract: PROBLEM TO BE SOLVED: To decrease the value of NOx in case of using liquid fuel, by vaporizing the liquid fuel in a vaporizing reactor in several steps. SOLUTION: Fuel oil 38 passes through a distribution hole 33, and enters ring gaps 30, which are continuously narrowed, and which are filled with overheated steam 21, roughly vertically. Thereby, heat is transferred from the steam 21 to the fuel oil 38 remarkably, and consequently the part which already has large amount of fuel oil 38 is transformed to the gas phase. Moreover, the concerned medium is so strong that it is mixed as a mixture of fuel steam and liquid fuel 61. After that, the mixture of fuel steam and liquid fuel 61 is guided to a vaporizing passage 45 through a guide circular cone part 44. The remaining fuel oil 38 is vaporized in the vaporizing passage 45 on the basis of the indirect heat exchange with the waste gas 51 which flows through the ring passage 47 of a gasturbine 3 on the principle of convection.
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Patent Agency Ranking
公开(公告)号：JPH1172205A
公开(公告)日：1999-03-16
申请号：JP20188498
申请日：1998-07-16
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , STEINBACH CHRISTIAN DR , VALK MARTIN DR
Abstract: PROBLEM TO BE SOLVED: To enable execution of spraying at a spray angle or a degree of spraying adapted exactly to conditions of operation at each time, by setting the diameter on the exit side of a nozzle outlet hole to be the same as that of a supply hole even at the maximum and by setting the length of the nozzle outlet hole to be a specified multiple of the diameter on the exit side of the nozzle outlet hole. SOLUTION: In a pressure spraying nozzle of a type wherein a nozzle body 30 has a mixing chamber 39 connected to an external chamber through a nozzle outlet hole 33 and a first supply passage 42 supplying a liquid 37 to be sprayed to the mixing chamber 39 without a whirling flow and under a pressure and wherein at least one other supply passage 36 is opened in the mixing chamber 39 for a part of the liquid 37 to be sprayed or a second liquid 37' to be sprayed and the liquids 37 and 37' can be supplied, with the whirling flow, through this supply passage 36, while a supply hole 41 of the first supply passage 42 is positioned on the same axis as the nozzle outlet hole 33, the diameter on the exit side of the nozzle outlet hole 33 is the same as the diameter d2 of a supply hole of the first supply passage even at the maximum and the length of the nozzle outlet hole 33 is at least 2-10 times larger, at the maximum, than the diameter da on the exit side of the nozzle outlet hole.
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公开(公告)号：JP2000064855A
公开(公告)日：2000-02-29
申请号：JP4828499
申请日：1999-02-25
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , ENGELBRECHT GEOFFREY , MAGNI FULVIO , MUELLER GERHARD
Abstract: PROBLEM TO BE SOLVED: To easily eliminate residual liquid fuel by interrupting supply of liquid fuel supplied through a first supply conduit simultaneously with the stop of a gas turbine, and feeding an auxiliary medium into a suitable place of the first supply conduit through a second supply conduit. SOLUTION: A fuel system 10 of a burner 11 of a gas turbine has two supply conduits 12, 13, and liquid fuel is supplied through the first supply conduit 12. In this case a washdown process is started simultaneously with the stop of the gas turbine. Supply of liquid fuel is first interrupted by closing a control valve 19 in an interruption place 33. A check valve 27 provided at a connecting conduit 26 is then opened as rapidly as possible after the stop of the gas turbine to supply a low pressure flow medium to the stopped fuel system. Fuel in the pertinent conduit is pushed out by a washdown medium to leak out to a combustion chamber, and conveyed by air in the combustion chamber or through a discharge system so as to be led out to a fuel tank 31.
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公开(公告)号：JPH11223305A
公开(公告)日：1999-08-17
申请号：JP32224098
申请日：1998-11-12
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , KNOEPFEL HANS PETER , RUCK THOMAS
Abstract: PROBLEM TO BE SOLVED: To improve the preliminary mixing of fuel and combustion air by improving the depth of penetration of fuel into the flow of combustion air. SOLUTION: A burner for a combustor is constituted principally of a swirl generator 100, a transition member arranged in the downstream of the swirl generator, and a mixing tube. The swirl generator itself is constituted of at least two sets of hollow conical partial bodies 140-143 arranged so as to be related in the direction of flow, while respective central axial lines of the partial bodies are extended in offset so that the neighboring walls of the partial bodies form an inlet passage 120 in the tangential direction. Fuel injectors 116, 116a are arranged along both sides of inflow rims in the inflow area of combustion air flow 115 into the swirl generator 100, while the fuel injectors function in offset so as to obtain the maximum preliminary mixing by covering the inflow sectional area of the inlet port passage of the fuel injector perfectly by fuel.
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公开(公告)号：JPH10153128A
公开(公告)日：1998-06-09
申请号：JP31172797
申请日：1997-11-13
Applicant: ABB RESEARCH LTD
Inventor： BUSS JOHANNES , DOEBBELING KLAUS DR , WINKLER DIETER
IPC: F02C7/22 , F02C3/30 , F02C6/18 , F02C7/224 , F02M31/18 , F23K5/10 , F23K5/22 , F23R3/30 , F23R3/32 , F23R3/36
Abstract: PROBLEM TO BE SOLVED: To cause equalized volmetric heat quantity through both gas and liquid fuel. SOLUTION: One supply passage to a burner of a gas turbine is used for both liquid and gas fuel. The liquid fuel is treated by gas of a treatment device. A fuel pre-evaporator 1 is arranged for treating the liquid fuel. The fuel pre- evaporator 1 has an evaporation tube 2. The evaporation tube 2 is made of material having satisfactory heat conductivity. The evaporation tube 2 cooperates with a heating device 3. A supplying device 4 for cleaning gas is connected to one end of the evaporation tube 2, while a fuel supplying/ discharging device 5 is connected to the other.
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公开(公告)号：JPH1068511A
公开(公告)日：1998-03-10
申请号：JP12659797
申请日：1997-05-16
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , KNOEPFEL HANS PETER , WINKLER DIETER
Abstract: PROBLEM TO BE SOLVED: To reduce the NOx emission by a method wherein partially-cone- shaped bodies are overlapped with each other and the overlap angle is increased in the flow direction of a burner to increase distance between a fuel injector and an air influent plane in the burner with the increase in overlap angle. SOLUTION: Partially-cone-shaped bodies 1 and 2 are overlapped with each other, and the overlap angle δ is 0 deg. at the apex of the cone-shaped body and gradually increases in the flow direction up to a front plate so that the overlap walls form a flow path of combustion air 7. To the similar extent of change in overlap angle, a fuel injector is shifted in the upstream direction and the position of a fuel injecting plane 22 with respect to the air influent plane 21 is changed along the burner toward a burner front so that a premixing zone stretching from the fuel injector to the air influent plane 21 is gradually widened. Therefore, gaseous fuel 16 and combustion air 7 are mixed homogeneously and the flame temperature is lowered, resulting in a reduction of NOx emission.
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