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11. 发明专利

JPS54135904A STEAM TURBINE HALFFSPEED SYNCHRONIZER 失效
公开(公告)号：JPS54135904A
公开(公告)日：1979-10-22
申请号：JP4317678
申请日：1978-04-14
申请人： HITACHI LTD
发明人： ABE MASAHARU , KASHIWARA KATSUTO , KOIDE YOSHIMI
IPC分类号： F01K7/24 , F01D15/10 , F01D17/00 , F01D19/00 , F01D21/00
摘要： PURPOSE:To make ready half-speed synchronization and cut off set-up time by using a bypass to communicate the outlet of a reheating boiler with an auxiliary condenser in a cross-compound-type steam turbine. CONSTITUTION:A cross-compound-type steam turbine has a half-speed synchronizer. Steam generated in a main steam boiler 3 passes through a high-pressure turbine 9, reheating boiler 4, an intermediate pressure turbine 10, and main and sub-low pressure turbine 11, 12 and is discharged out into a main and sub condenser 13, 14. Then the condensed water is sent back into the boiler 3 through a supply water heater 19, 22. A bypass 27 communicates the sub condenser 14 with the inlet of a reheated steam cut-off valve 8 in communication with the outlet of the reheating boiler 4. A reheated steam bypass valve 17 is equipped on the way of the bypass 27. This makes easy half-speed synchronization and cut short set-up time.

12. 发明专利

JPS53109003A CHANGINGGOVER DEVICE FOR STEAM TURBINE SPEED GOVERNING SYSTEM 失效
公开(公告)号：JPS53109003A
公开(公告)日：1978-09-22
申请号：JP2265577
申请日：1977-03-04
申请人： HITACHI LTD
发明人： ABE MASAHARU
IPC分类号： F01D19/00
摘要： PURPOSE:To change-over easily receiprocally the speed govering systems, by locating the cum shaft which is operated radially movable by a handle and equipped with 2 kinds of cum groups which do the throttling-system speed-governing and the nozzle-system speed-govering.

13. 发明专利

JPS5267403A LOAD LIMIT SYSTEM 失效
公开(公告)号：JPS5267403A
公开(公告)日：1977-06-03
申请号：JP14295575
申请日：1975-12-03
申请人： HITACHI LTD
发明人： KOIDE YOSHIMI , ABE MASAHARU
IPC分类号： F01D17/26
摘要： PURPOSE:To serve the same funcion of load limit under decreasing in vaccum as function under increasing for a vaccum as function under increasing for a vacuumdown load limit system by equipping a vaccum detector.

14. 发明专利

JPS5243130A FLUID FLDW QUANTITY CONTOLLING AND BREAKING DEVICE 失效
公开(公告)号：JPS5243130A
公开(公告)日：1977-04-04
申请号：JP11882475
申请日：1975-10-03
申请人： HITACHI LTD
发明人： ABE MASAHARU , KASHIWARA KATSUTO
IPC分类号： F16K3/08 , F01D17/10 , F01D17/14 , F01D21/16 , F02C9/00 , F02C9/22

15. 发明专利

JPS6157443B2 失效
公开(公告)号：JPS6157443B2
公开(公告)日：1986-12-06
申请号：JP10722479
申请日：1979-08-24
申请人： HITACHI LTD
发明人： ABE MASAHARU
IPC分类号： F01D17/10 , F01D21/00 , F01D21/16 , F01D25/00

16. 发明专利

JPS6055681B2 失效
公开(公告)号：JPS6055681B2
公开(公告)日：1985-12-06
申请号：JP15204379
申请日：1979-11-26
申请人： HITACHI LTD
发明人： ABE MASAHARU , HASHIMOTO TSUGIO
IPC分类号： F01D25/10

17. 发明专利

JPS5898605A TWO-SHAFT SYNCHRONIZING SYSTEM FOR CROSS-COMPOUND TYPE STEAM TURBINE 失效
公开(公告)号：JPS5898605A
公开(公告)日：1983-06-11
申请号：JP19684581
申请日：1981-12-09
申请人： HITACHI LTD
发明人： ABE MASAHARU
IPC分类号： F01K7/24 , F01K7/22
摘要： PURPOSE:To make a synchronous operation easy and to enlarge a range of synchronous timing, by providing an auxiliary speed matching valve on a bypass system connecting an outlet side of a reheat boiler with an auxiliary condenser. CONSTITUTION:Reheat steam to be sent from a reheat boiler 10 is led to a medium pressure turbine 3 through a reheat steam stop valve 17 and an intercept valve 16, and after the reheat steam of the medium pressure turbine 3 is led to a main and an auxiliary low pressure turbines 4a and 4b respectively it is discharged into a main and an auxiliary condensers 6a and 6b respectively. A part of a main steam flow bypassed through a high pressure turbine 2 and the main low pressure turbine 4 is controlled by a main speed matching valve 13. A part of a reheat steam flow bypassed through the medium pressure turbine 3 and the auxiliary low pressure turbine 4b is controlled by an auxiliary speed matching valve 18. Two-shaft synchronization can be realised in a short period of time and easily by both the valves 13 and 18.

18. 发明专利

JPS56124606A EMERGENCY SHUTTOFF VALVE OF STEAM TURBINE 失效
公开(公告)号：JPS56124606A
公开(公告)日：1981-09-30
申请号：JP2662380
申请日：1980-03-05
申请人： HITACHI LTD
发明人： ABE MASAHARU
IPC分类号： F01D25/00
摘要： PURPOSE:To effectively separate rough scales by a method wherein a steam passing hole is formed deflected from a steam in-flow line in a steam strainer separating the rough scales in steam fluid. CONSTITUTION:A valve disk 1 is cylindrically surrounded by th strainer. The steam mixed with the scales enter into a steam chamber 14 from a steam inlet 6, passes through the holes 2a, 2b of the strainer 2 and flows into a steam chamber 7. The hole 2b has a deflaction angle theta with respect to the hole 2a and the scales are separated from the steam flow. The steam separated with the scales passes through a throat 11 from a steam chamber 7, flowing to a steam outlet 13 through a steam chamber 12 and flowing into turbine. The scales separated from the steam flow are collected in a chamber 17 and discharged from a hole 18, a scales discharge piping 19 through a valve 22 opened.

19. 发明专利

JPS5644401A EMERGENCY SHUTTOFF VALVE FOR STEAM TURBINE 失效
公开(公告)号：JPS5644401A
公开(公告)日：1981-04-23
申请号：JP11796279
申请日：1979-09-17
申请人： HITACHI LTD
发明人： ABE MASAHARU , KASHIWARA KATSUTO , NINOMIYA SATOSHI
IPC分类号： F01D21/16 , F01D25/00
摘要： PURPOSE:To enable the separation and discharge of large and hard pieces of scale which erode the steam passage of a turbine and to prevent a steam shut-off function from being lost, by providing a scale dropping circumferential groove on the peripheral part of a valve seat in the casing of an emergency shut-off valve. CONSTITUTION:When the valve element of an emergency shut-off valve 7 is opened in the trial run or the like of a turbine, steam from a boiler flows into the peripheral part of a valve chamber 4 through an inlet section 3 and passes through the strainers 13-11 of a strainer unit and a valve seat 6 and flows out of a steam outlet section 5. Extraneous substances conveyed in by the flow of the steam are removed by the strainers 13, 12. For the normal run of the turbine, the strainers 13, 12 are detached. In the normal run, large and hard pieces of scale conveyed in by the flow of steam are caused to collide against the lower part of a cylinder 10 and be dropped to a circumferential groove 14 for separation because the pieces of scale are introduced along the seat portion of the inlet section 3. The dropped and separated pieces of scale are removed through a chamber 15 and a discharge hole 17 under a dam 16.

20. 发明专利

JPH034721B2 失效
公开(公告)号：JPH034721B2
公开(公告)日：1991-01-23
申请号：JP15260182
申请日：1982-09-03
申请人： HITACHI LTD
发明人： ABE MASAHARU , OOTAHARA YASUHIKO
IPC分类号： F01D15/08 , F01D21/14 , F01D21/16

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