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1. 发明专利

JP2010019228A Blade random vibration monitoring system of rotary machine 审中-公开
标题翻译：旋转机叶片随机振动监测系统
公开(公告)号：JP2010019228A
公开(公告)日：2010-01-28
申请号：JP2008182817
申请日：2008-07-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SEGAWA KIYOSHI , SENOO SHIGEKI , YAMASHITA MINORU , SAITO EIJI , ISHIBASHI KOJI , HAMATAKE HISASHI
IPC分类号： F01D25/00
摘要： PROBLEM TO BE SOLVED: To optimize operational limitation, while surely avoiding random vibration of a moving blade, in a rotary machine such as a steam turbine.
SOLUTION: This blade random vibration monitoring system 11 has a pressure measuring device 15 and a warning device 16. The pressure measuring device outputs a time history waveform of a measured pressure value Pi by measuring monitoring position variation pressure by a pressure sensor 17. The warning device 16 determines an entrance into a random vibration area of the moving blade of a monitoring object, and gives a warning when determined as entering the random vibration area. A determination of the entrance into the random vibration area of the moving blade is performed by determining σ
pi ≥σ
pi_thre on an operation limiting value σ
pi_thre with a standard deviation σ
pi of the measured pressure value Pi as an index. The operation limiting value σ
pi_thre is determined by using a high correlation between an annulus speed-vibration stress characteristic curve and an annulus speed-variation pressure characteristic curve.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了优化操作限制，同时确保避免在诸如蒸汽轮机的旋转机器中的动叶片的随机振动。解决方案：该叶片随机振动监测系统11具有压力测量装置15和报警装置16.压力测量装置通过由压力传感器17测量监测位置变化压力来输出测量压力值Pi的时间历程波形警告装置16确定监视对象的动叶片的随机振动区域的入口，并且当确定为进入随机振动区域时给出警告。通过在操作限制值σSB / pi_thre / SB上确定σ pi ≥σ pi_thre 来进行对动叶片的随机振动区域的入口的确定 >，其中测量压力值Pi的标准偏差σ pi 作为指标。操作限制值σ pi_thre 通过使用环形速度 - 振动应力特性曲线和环形变速压力特性曲线之间的高相关性来确定。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2004211641A Gas turbine and its operating method 审中-公开
公开(公告)号：JP2004211641A
公开(公告)日：2004-07-29
申请号：JP2003001409
申请日：2003-01-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KISHIBE TADAHARU , HAMATAKE HISASHI
IPC分类号： F01D25/00 , F02C3/30 , F02C7/05 , F02C9/18
摘要： PROBLEM TO BE SOLVED: To provide a gas turbine and its operating method, suppressing lowering in performance of a compressor and assuring original effect of increase in output, in spraying droplets into intake air.
SOLUTION: The gas turbine burning compressed air refined by a compressor 2 to generate rotating power, comprises: a spray device 10 properly spraying the droplets into the intake air 1 of the compressor 2; an extraction line 12 extracting air that is being compressed in the compressor 2; an extraction valve disposed to the extraction line 12; and a control device 18 controlling the extraction valve 14 so that the sprayed droplets are purged from the compressor 2 through the extraction line 12 at least immediately after the spray until a set time has elapsed, in spraying the droplets from the spray device 10.
COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JP2008075580A Low-pressure steam turbine system and method of controlling it 审中-公开
标题翻译：低压蒸汽涡轮机系统及其控制方法
公开(公告)号：JP2008075580A
公开(公告)日：2008-04-03
申请号：JP2006256525
申请日：2006-09-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGABUCHI NAOYUKI , HAMATAKE HISASHI
IPC分类号： F01D21/00 , F01D17/20 , F01D17/24
摘要： PROBLEM TO BE SOLVED: To reduce the effect by the superimposition of random vibration with flashback by suppressing the random control occurring in a low-pressure steam turbine, when a load is cut out and a measured load is equal to or less than a predetermined value. SOLUTION: This low-pressure steam turbine system 100 comprises a low-pressure steam turbine 1 having a plurality of stages formed of stationary blades 3 and moving blades 2. When the load is cut out and the measured load is equal to or less than the predetermined value, a target rotational speed is reduced by a predetermined value and set during a predetermined time when the flashback vibration occurs in the low-pressure steam turbine 1. An instruction for regulating the amount of the steam supplied to the low-pressure steam turbine 1 is output to a steam flow regulating valve 10 so that a rotor 4 can maintain the target rotational speed reduced by the predetermined value and set for the predetermined time. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了通过抑制在低压蒸汽轮机中发生的随机控制来减少随机振动与闪回的叠加的影响，当切断负载并且测量的负载等于或小于预定值。解决方案：该低压蒸汽轮机系统100包括具有由固定叶片3和活动叶片2形成的多个级的低压蒸汽轮机1.当负载被切断并且测量的负载等于或等于小于预定值时，目标转速减小预定值并在低压蒸汽轮机1发生闪回振动的预定时间期间设定。一种用于调节供应到低压蒸汽轮机1的蒸汽量的指令，压力蒸汽轮机1输出到蒸汽流量调节阀10，使得转子4可以将目标转速保持在预定值上并设定预定时间。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2005133630A Gas turbine power generation facilities and method for employing the same 有权
标题翻译：燃气轮机发电设备及其使用方法
公开(公告)号：JP2005133630A
公开(公告)日：2005-05-26
申请号：JP2003370324
申请日：2003-10-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMANAKA KAZUNORI , MARUSHIMA SHINYA , HAMATAKE HISASHI , HORITSUGU MUTSUMI
IPC分类号： F02C3/22 , F02C6/06 , F02C7/22
CPC分类号： F02C7/22 , F02C3/22 , F02C6/06
摘要： PROBLEM TO BE SOLVED: To provide a gas turbine power generation facilities capable of effectively using gas from a deteriorated gas field or the like and a method for employing the same.
SOLUTION: The gas power generation facilities 10 installed in vicinity of the deteriorated gas field or an oil field is provided. In the gas power generation facilities 10, air compressed by a compressor 1 is introduced to a combustor 2 and is burned after being mixed with fuel, a turbine 3 is driven by combustion gas and a generator is driven by power provided by a rotary shaft of the gas turbine 3. A boost compressor 6 is driven by power provided by the rotary shaft of the gas turbine, pressurizes natural gas or accompanying gas and supplies the same as fuel to the combustor 2. Power generation is performed by the gas turbine by using natural gas generated in the deteriorated gas field or accompanying gas generated in the oil field and obtained electricity is supplied to a consuming place.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种能够有效利用恶化气田等的气体的燃气轮机发电设备及其应用方法。解决方案：设置在劣化气田或油田附近的燃气发电设备10。在燃气发电设备10中，将由压缩机1压缩的空气引入燃烧器2，并与燃料混合后燃烧，涡轮机3由燃烧气体驱动，发电机通过由旋转轴燃气轮机3.增压压缩机6由燃气轮机的旋转轴提供的动力驱动，对天然气或伴随的气体加压，并向燃烧器2供给燃料。发电由燃气轮机通过使用在劣化气田中产生的天然气或在油田中产生的伴随气体并获得电力被供应到消耗地方。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2008075526A Low-pressure steam turbine system and control method 审中-公开
标题翻译：低压蒸汽涡轮机系统及控制方法
公开(公告)号：JP2008075526A
公开(公告)日：2008-04-03
申请号：JP2006255071
申请日：2006-09-20
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGABUCHI NAOYUKI , HAMATAKE HISASHI
IPC分类号： F01D21/00 , F01D17/20 , F01D17/22 , F01D17/24 , F01D19/00 , F01K7/38 , F01K13/02
摘要： PROBLEM TO BE SOLVED: To provide a low-pressure steam turbine system in which the occurrence of flashback vibration, caused when a load is interrupted and the operation is changed to a no-load operation, can be suppressed.
SOLUTION: This low-pressure steam turbine system 100 comprises a low-pressure steam turbine 1 having a plurality of stages formed of stationary blades 3 and moving blades 2. Extraction holes 6 for supply water heating for a supply water heater 8 are formed immediately before and immediately after one stage. When the load of the low-pressure steam turbine 1 is interrupted and the operation is changed to a no-load operation, temperature in the supply water heater 8 is lowered.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种低压汽轮机系统，其中在负载中断并且操作改变为空载操作时引起的闪回振动的发生被抑制。解决方案：该低压蒸汽轮机系统100包括具有由固定叶片3和活动叶片2形成的多个级的低压蒸汽轮机1.用于供给热水器8的供水加热用的提取孔6 在一个阶段之前和之后形成。当低压蒸汽轮机1的负荷中断并且操作变为空载运转时，供水热水器8的温度降低。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008063984A Low pressure steam turbine 有权
标题翻译：低压蒸汽涡轮机
公开(公告)号：JP2008063984A
公开(公告)日：2008-03-21
申请号：JP2006241103
申请日：2006-09-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAMATAKE HISASHI , SENOO SHIGEKI , SEGAWA KIYOSHI , MITANI TATSUO , YAMAGUCHI KAZUYUKI
IPC分类号： F01D5/24 , F01D5/22 , F01D25/24 , F01K7/40
摘要： PROBLEM TO BE SOLVED: To provide a low pressure steam turbine with a moving blade capable of reducing vibrational stress associated with superimposing of random vibration and flashback vibration, in a large low pressure steam turbine.
SOLUTION: This low pressure steam turbine has a plurality of paragraphs constituted of a stationary blade and the moving blade, and the moving blade in the paragraph is made in a high damping structure of a head end overall peripheral connecting blade structure, etc. in having air bleed holes of steam for feed water heating of a feed water heater immediately before and after one of the paragraphs. Additionally, a steam flow rate of a low pressure steam turbine inlet is increased by more than about 10% of rating or quantity of hot water in the feed water heater is adjusted when pressure of steam in a steam channel reaching the feed water heater from a periphery of the air bleed hole on the side immediately before the moving blade becomes higher than a specified value.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：在大型低压蒸汽轮机中，提供具有能够减少与随机振动和闪回振动叠加相关联的振动应力的移动叶片的低压汽轮机。解决方案：该低压蒸汽轮机具有由固定叶片和动叶片组成的多个段落，并且段落中的动叶片被制成头端整体外围连接叶片结构等的高阻尼结构在其中一个段落之前和之后，在给水加热器的给水加热的蒸汽中具有排气孔。此外，低压汽轮机进气口的蒸汽流量增加了超过约10％的额定值或供水热水器中的热水量，当蒸汽通道中的蒸汽到达给水加热器的压力从在移动叶片之前一侧的排气孔的周边高于规定值。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2005155613A Gas turbine and its manufacturing method 审中-公开
标题翻译：气体涡轮及其制造方法
公开(公告)号：JP2005155613A
公开(公告)日：2005-06-16
申请号：JP2004305034
申请日：2004-10-20
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKAHASHI YASUO , KISHIBE TADAHARU , HAMATAKE HISASHI
IPC分类号： F02C7/00 , F04D29/32 , F04D29/52
摘要： PROBLEM TO BE SOLVED: To manufacture a gas turbine different in cycle from a gas turbine designed in any cycle while maintaining the reliability thereof.
SOLUTION: A compressor has a flow path formed in such a manner as to vary the flow rate of fluid compressed by the compressor.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：制造与任何循环中设计的燃气轮机循环不同的燃气轮机，同时保持其可靠性。解决方案：压缩机具有形成为使由压缩机压缩的流体的流量变化的流路。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2004027927A Inner circumference bleeding air injection device and compressor using the same 审中-公开
公开(公告)号：JP2004027927A
公开(公告)日：2004-01-29
申请号：JP2002183834
申请日：2002-06-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KISHIBE TADAHARU , HAMATAKE HISASHI
IPC分类号： F02C9/18 , F04D29/32
摘要： PROBLEM TO BE SOLVED: To provide an inner circumference bleeding air injection device capable of smoothly leading inner circumference bleeding air from a main flow passage of an axial flow compressor to near axis of a compressor rotor while controlling turn, and a compressor provided with the same.
SOLUTION: This device is provided with roughly ring shaped step parts 10a, 10b provided on an outer circumference part of opposing side surfaces of a pair of the compressor disks 3a, 3b and creating an inner space 11 between the compressor disks 3a, 3b, a plurality of inner circumference bleeding air injection parts 12 provided on the step part 10a to connect a main flow passage 7 of compressed air of outside of the step parts 10a, 10b and the inner space 11, a plurality of grooves 1 provided on the opposing side surfaces of the compressor disks 3a, 3b i adjacent of a axis 6 of the compressor disks 31, 3b and bending in a rotation direction of the compressor disks 3a, 3b toward outside in a radial direction of the compressor disks 3a, 3b.
COPYRIGHT: (C)2004,JPO

9. 发明专利

JPH1113692A AXIAL FLOW COMPRESSOR CASCADE 失效
公开(公告)号：JPH1113692A
公开(公告)日：1999-01-19
申请号：JP16560397
申请日：1997-06-23
申请人： HITACHI LTD
发明人： HAMATAKE HISASHI , KATO YASUHIRO
IPC分类号： F04D29/38
摘要： PROBLEM TO BE SOLVED: To increase the thickness of a blade to ensure reliability on strength at a low cost and to avoid a choke flow by weakening an inter-blade shock wave. SOLUTION: In this cascade, in a range of 5% of a blade height from a moving blade root, a difference between a ratio of a cascade inlet width to the minimum flow passage width 12 of the cascade and a ratio of the minimum flow passage width 12 of the cascade to the inlet flow passage width 11 of the cascade is set to 0.06-0.08. A ratio of a difference between the cascade inlet width 13 and a cascade throat width 14 to the cascade inlet width of the cascade is set to 0.-02-0.04. This constitution suppresses acceleration of a flow on a blade surface on the back side and a blade surface on the belly side and avoids a choke flow by weakening an interblade impact wave.

10. 发明专利

JP2000283096A AXIAL FLOW COMPRESSOR AND GAS TURBINE HAVING AXIAL FLOW COMPRESSOR 失效
公开(公告)号：JP2000283096A
公开(公告)日：2000-10-10
申请号：JP9131099
申请日：1999-03-31
申请人： HITACHI LTD
发明人： HAMATAKE HISASHI , KATO YASUHIRO
IPC分类号： F04D29/56
摘要： PROBLEM TO BE SOLVED: To provide an axial flow compressor to reduce a secondary flow of intake air and decrease the increase of a surge margin and incurring of a loss. SOLUTION: In an axial flow compressor having a variable inlet guide vane 11, a surface fronting on the flow passage of an approximate columnar structure 13 connected to the inlet guide vane 11 forms a rotary surface which is symmetrical about an axis forming the revolving shaft of the variable inlet guide vane. The rotary surface is caused to coincide with a rotary surface being symmetrical about an axis forming the revolving shaft of the variable inlet guide vane situated on the inner surface of a casing 81.

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