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21. 发明专利

JPS566009A POWER PLANT UTILIZING WASTE HEAT 失效
公开(公告)号：JPS566009A
公开(公告)日：1981-01-22
申请号：JP8133479
申请日：1979-06-29
申请人： NIPPON STEEL CORP , HITACHI LTD
发明人： KITAHARA TAKASHI , FUEDA TAKASHI , IWAKI KIYOTA , UMAGOE ITSUO , KURODA MICHIO , SAKAGUCHI HARUICHIROU , TSUKAHARA SATOSHI , AKATSU YASUAKI , SUGITA NARIHISA , MORI TADAO , NAKAMURA SHIYOUZOU
IPC分类号： F01K25/10
摘要： PURPOSE:To obtain a compact and efficient power plant, by adding a loop for heating turbine operating medium directly by use of waste heat in a power plant including an intermediate heating medium loop and a turbine operating medium loop. CONSTITUTION:A portion of turbine operating liquid medium 20 from pump 19 is carried to turbine operating medium heater 26 disposed downstreams of intermediate heating medium heater 8. After medium 20 is evaporated in heater 26, it is mixed with steam supplied from direct heat exchanger 10 and the carried to turbine 12. In this system, if thermal conditions of heating medium 7 are determined, heat is extracted from heater 26 to the power plant in the temperature range lower than an upper limit permitting direct heating of turbine operating medium, depending on the properties of turbine operating medium. On the other hand, in the temperature range higher than the upper limit, heat is exchanged at heat exchanger 8. With such an arrangement, a more compact and efficient power plant can be obtained for a given heat source.

22. 发明专利

JPS54162043A CONTROLLING METHOD FOR POWER GENERATION PLANT WHICH UTILIZES LOW BOILING POINT MEDIUM STEAM AND ITS APPARATUS 失效
公开(公告)号：JPS54162043A
公开(公告)日：1979-12-22
申请号：JP7085478
申请日：1978-06-14
申请人： HITACHI LTD
发明人： NAKAMURA SHIYOUZOU , SAKAGUCHI HARUICHIROU , TSUKAHARA SATOSHI , AKATSU YASUAKI , SUGITA NARIHISA , KURODA MICHIO , KANEKO KOUJIROU
IPC分类号： F01K25/10 , F01K13/02
摘要： PURPOSE:To prevent thermal reaction of low boiling point medium by controlling the flow rate of low boiling point medium supplied to a direct type heat exchanger and controlling the temperature of intermediate thermal medium supplied to a heater. CONSTITUTION:Intermediate thermal medium is supplied with a fixed speed to a heater 2 in which waste heat gas 1 passes, by a circulation pump 5. The temperature of the intermediate thermal medium which is heated by passing through a heater 2 is detected by a temperature detector 3 arranged at the exit of the heater 2, and the medium is supplied to a direct type heat exchanger 6 to which low boiling point medium is supplied through an intermediate thermal medium feeding pipe 3. The output 15 of the temperature detector 13 is applied to a flow rate adjusting valve controlling apparatus 14, and the turning of a flow-rate adjusting valve 11 is controlled. This turning is kept larger as the temperature of the intermediate thermal medium which is detected by the temperature detector 13 becomes higher.

23. 发明专利

JPS54150763A HEATING SIDE FLUID SUPPLY METHOD TO HEAT EXCHANGER 失效
公开(公告)号：JPS54150763A
公开(公告)日：1979-11-27
申请号：JP5889578
申请日：1978-05-19
申请人： HITACHI LTD
发明人： SUGITA NARIHISA , TSUKAHARA SATOSHI , NAKAMURA SHIYOUZOU , AKATSU YASUAKI , SAKAGUCHI HARUICHIROU , KANEKO KOUJIROU , KURODA MICHIO
IPC分类号： F28F27/00
摘要： PURPOSE:To prevent heat reaction etc. of low boiling point medium by cutting the supply of heated fluid between the temperature detecting part and a heat exchanger when the temperature of the heating side fluid at an inlet of the heat exchanger is higher that the fixed value. CONSTITUTION:The temperature of heating side fluid 1, being supplied to a heat exchanger 2, is detected by a temperature detector 4, and the detected signal is sent to a damper controller 6. When the detected temperature is lower than the thermal cracking point of Freon, heating side fluid flows into the heat exchanger 2 with a damper 8 closed and a damper 7 open. Reversely, when the detected temperature is higher than the thermal cracking point of Freon, heating side fluid does not flow into the heat exchanger 2 but flows out passing through a damper 8 of a branch pipe 5 with the damper 8 open and the damper 7 closed. The thermal cracking of low boiling point medium being thus prevented, structural materials such as heat conduction pipe etc. are kept from corrosion.

24. 发明专利

JP2000088252A GAS TURBINE HAVING COOLING PROMOTION STRUCTURE 失效
公开(公告)号：JP2000088252A
公开(公告)日：2000-03-31
申请号：JP25783798
申请日：1998-09-11
申请人： HITACHI LTD
发明人： SAITO TAKEO , TSUKAHARA SATOSHI , ISHIBASHI YOJI
IPC分类号： F02C7/18 , F23R3/42 , F23R3/54
摘要： PROBLEM TO BE SOLVED: To effectively cool a liner without increasing fluid loss of a whole combustor. SOLUTION: A gas turbine is adapted such that there are provided a liner in which a combustion chamber is formed, an outer wall located on an outer periphery surface of the liner, and an air flow passage which is formed in a gap between the liner and the outer wall for guiding air pressurized in a compressor to a combustion chamber. In the gas turbine, there are further provided on an outer periphery side surface of the liner a rib 502 which forms a protruded portion extended circumferentially and fins which form a higher protruded portion than the rib 502.

25. 发明专利

JPH11211086A GAS TURBINE COMBUSTOR 失效
公开(公告)号：JPH11211086A
公开(公告)日：1999-08-06
申请号：JP929098
申请日：1998-01-21
申请人： HITACHI LTD
发明人： TSUKAHARA SATOSHI , SAITO TAKEO , ISHIBASHI YOJI
IPC分类号： F23R3/20 , F23R3/28 , F23R3/32
摘要： PROBLEM TO BE SOLVED: To provide a liquid fuel combustor structure in which lean premixed combustion can take place while suppressing NOx. SOLUTION: A premix burner is provided with a first air hole 51 for feeding third air in the outer circumference at the outlet of a first tubular ejection port 50 for feeding fuel and second air. First air is fed from an air swirler 10 such that the fuel particles intersect the air flow and premixed while being evaporated in an annular passage 45. The passage is enlarged abruptly at the outlet end before being coupled with a combustion chamber 20. The burner is combined with a burner 90 additionally provided with diffuse combustion in the center to constitute a single gas turbine combustor. According to the structure, a gas mixed uniformly with fine particle required for preevaporation premixed combustion is produced and a gas turbine combustor can be operated while suppressing NOx over a wide range.

26. 发明专利

JPH11173553A GAS TURBINE COMBUSTOR 失效
公开(公告)号：JPH11173553A
公开(公告)日：1999-06-29
申请号：JP34252697
申请日：1997-12-12
申请人： HITACHI LTD
发明人： ISHIBASHI YOJI , TSUKAHARA SATOSHI , KAWAIKE KAZUHIKO , SAITO TAKEO
IPC分类号： F23R3/42 , F23R3/54
摘要： PROBLEM TO BE SOLVED: To improve cooling performance while reducing loss due to fins and facilitate cooling corresponding with a thermal load by a method wherein plate type fins are arrayed in the axial direction of a combustor in multi-stages while long fins are arrayed in a region at the side of combustor gas in which a thermal load is low, but fins having a short length are arrayed in a region in which the thermal load is high. SOLUTION: Four burners 6 equipped with a fuel nozzle 14 are mounted at the upstream side of a cylindrical combustor liner 3 to constitute a combustor. Compressor discharging air 100 is conducted to flow through an annular flow passage formed on a flow sleeve 2 and the combustor liner 3 whereby the combustor liner 3 is cooled. The combustor liner 3 is provided with fins on the outer surface to enlarge a cooling area as well as the promotion of heat transfer, and restrain the increase of a pressure loss. Fins 4a having a short length are arrayed in multi-stages at the upstream side of the combustor whereat a gas side thermal load is high while long fins 4b are arrayed in multi- stages at the downstream side of the combustor, whereat the thermal load is low, whereby the pressure loss can be reduced and the wall temperature of the combustor liner 3 can be made even.

27. 发明专利

JPH09329335A REGENERATION TYPE GAS TURBINE COMBUSTOR 失效
公开(公告)号：JPH09329335A
公开(公告)日：1997-12-22
申请号：JP14888996
申请日：1996-06-11
申请人： HITACHI LTD
发明人： ISHIBASHI YOJI , TSUKAHARA SATOSHI , KOBAYASHI SHIGEYOSHI
IPC分类号： F02C7/08 , F23R3/42
摘要： PROBLEM TO BE SOLVED: To provide an effective cooling structure for a combustor tail cylinder which ensures a good flow of air extraction and air supply of a regeneration type gas turbine combustor. SOLUTION: A gas turbine combustor comprises a fuel nozzle hole, a combustor liner 6, a combustor middle tail cylinder 7, and a combustor tail cylinder 8, which is contained in a car room casing 14 and a combustor casing 15, sleeves 10, 11 being mounted on the combustor tail cylinder, a car room and an air extraction chamber 27 being partitioned by a partition wall 18, the air extraction chamber 27 and an air supply chamber 28 being partitioned with a partition wall 19, an air extraction pipe 22 being provided on the air extraction chamber 27, an air supply pipe 23 being provided on the air supply chamber 28, and the combustor liner 6 and the combustor tail cylinder 8 being communicated with each other through the combustor middle tail cylinder 7.

28. 发明专利

JPH08110012A MANUFACTURING METHOD OF COMBUSTOR LINER 失效
公开(公告)号：JPH08110012A
公开(公告)日：1996-04-30
申请号：JP24364994
申请日：1994-10-07
申请人： HITACHI LTD
发明人： INNAMI TAMIO , TSUKAHARA SATOSHI , KIEDA SHIGEKAZU , HAYASHI NORIYUKI , SHIINA KOJI
IPC分类号： F23L17/00 , F23C7/04
摘要： PURPOSE: To uniformize liner wall temperature and hence keep stable combustion by forming a protruded rib on the side of a cooling air flow passage in the peripheral direction of the liner using a monolithic material for forming a combustor liner. CONSTITUTION: A plurality of monolithic ribs 11 are formed in the axial direction of a liner 2 where a monolithic liner material is formed into a protruded shape in the circumferential direction of the liner 2 on the side of a cooling air flow passage of the liner 2. A joint protruded rib 10 for promoting cooling of a wall of the liner 2 is joined with the wall of the liner 2 located on the side of the cooling air flow passage in the circumferential direction of the surface of the wall of the liner 2. At this time, relationships between the width A, height H of the monolithic rib 11 and the width (a), height (h) of the joint protruded rib 10 are defined: A>=a, H=h. Hereby, cooling air is prevented from flowing nonuniformly, and wall temperature of the liner 22 can be uniformized, and further fuel and air in a combustor are facilitated to be mixed and uniformized to keep stable combustion.

29. 发明专利

JPH05187635A GAS TURBINE COMBUSTOR 失效
公开(公告)号：JPH05187635A
公开(公告)日：1993-07-27
申请号：JP364692
申请日：1992-01-13
申请人： HITACHI LTD
发明人： IWAI KAZUMI , ISHIBASHI YOJI , TSUKAHARA SATOSHI , INOUE HIROSHI , HAYASHI NORIYUKI , INNAMI TAMIO , KURODA MICHIO , OTAWARA YASUHIKO , ITO KAZUYUKI
IPC分类号： F23R3/04
摘要： PURPOSE:To minimize the effect of an oscillating combustion on flames even if it should occur, by a construction wherein an air introducing port not relating directly with combustion is provided in a combustion tube separately from a port for introducing air being necessary for complete combustion. CONSTITUTION:A gas turbine takes the air as an airflow 1 into a compressor 2 and it flows as compressed air 3 through a diffuser part 4 and is supplied to an air chamber 5. Part of this air is supplied as premixture air 7 to a burner port 24, while the other part of it is supplied as central supply air 8 to a combustion chamber 11 from a central air jet port 10 through a central air intake port 9. Besides, a part of combustion air is used as liner cooling air 26 for cooling a liner 27. By using the condition not relating directly with formation of flames, in this way, a system for prevention of oscillating combustion and stabilization of flames is prepared.

30. 发明专利

JPH04356606A METHOD OF BURNING LIQUID FUEL AND BURNER 失效
公开(公告)号：JPH04356606A
公开(公告)日：1992-12-10
申请号：JP13126091
申请日：1991-06-03
申请人： HITACHI LTD
发明人： NARATO KIYOSHI , AZUHATA SHIGERU , KOBAYASHI YOSHINOBU , TANIGUCHI MASAYUKI , MURAKAMI TADATAKA , KURODA MICHIO , KIRIKAMI SEIICHI , TSUKAHARA SATOSHI
IPC分类号： F23D11/24
摘要： PURPOSE:To provide the most suitable method of combustion to reduce NOX and to stabilize flame when a liquid fuel that is difficult to evaporate is used. CONSTITUTION:A liquid fuel is vaporized by the heat exchange with the the combustion gas discharged out of a gas turbine to produce gaseous fuel. Part of this gaseous fuel is blown out directly into a primary combustion chamber 25 to form a dispersed flame 37. The other part is introduced into a mixing chamber 32 and mixed with air 21 to become premixture gas 39, and it is blown out into a secondary combustion chamber 26 and forms a premixture flame 36 by a flame holder 30 provided at the outlet of the mixing chamber 32. The fuel that is blown out into the combustion temporarily can be atomized liquid fuel. And since the fuel for the dispersed flame and the fuel for premixture flame can be supplied under control through different systems, NOX is reduced without lowering the combustion efficiency as well when fuel that is difficult to evaporate is used.

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