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1. 发明专利

JPH0835404A CONDENSATE RECIRCULATING HEAT QUANTITY RECOVERING DEVICE OF TYPE COMBINED PLANT FULL FIRED HEAT RECOVERY 失效
公开(公告)号：JPH0835404A
公开(公告)日：1996-02-06
申请号：JP17229494
申请日：1994-07-25
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KUROBA SHIGEKI , ARASE HIROSHI , OKADA MIKIO , KURIBAYASHI TETSUZO
IPC分类号： F01K7/40 , F01K23/10 , F02C6/00 , F02C6/18 , F22D1/36
摘要： PURPOSE:To improve economy and maintenance performance by providing a heat recovering device on a condensate recirculating system, and recovering condensate recirculating heat quantity that has been formerly exhausted to a condenser. CONSTITUTION:A heat recovering device 24 is installed on a condensate recirculating system 19 for recirculating condensed water of excess heat quantity of a low-pressure gas turbine 7 of an exhaust gas afterburning-type combined plant to a condensing system on the inlet side of the low-pressure gas turbine, in order to recover the condensate recirculating heat quantity, and the condensate recirculating heat quantity is recirculated to a condenser 13 after its heat is recovered to intake air of a boiler.

2. 发明专利

JPS61208402A WASTE-HEAT RECOVERY BOILER 失效
公开(公告)号：JPS61208402A
公开(公告)日：1986-09-16
申请号：JP4749285
申请日：1985-03-12
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： YANAI EIJI , TAKEUCHI KIYOSHI , ARAKAWA TADAO , KURIBAYASHI TETSUZO
IPC分类号： F22B1/18 , F22B37/00

3. 发明专利

JPH09209715A LOW-TEMPERATURE CORROSION PREVENTING DEVICE FOR EXHAUST GAS RE-COMBUSTION TYPE COMBINED PLANT 失效
公开(公告)号：JPH09209715A
公开(公告)日：1997-08-12
申请号：JP1735496
申请日：1996-02-02
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： WATANABE TOSHIKATSU , ARASE HIROSHI , KURIBAYASHI TETSUZO , URA KATSUMI
IPC分类号： F01K7/40 , F01K23/10 , F22B1/18 , F22D1/00
摘要： PROBLEM TO BE SOLVED: To prevent low-temperature corrosion by utilizing the exhaust gas of a gas turbine as boiler combustion air, and providing a heat exchanger utilizing the fluid circulated between a low-pressure gas heater inlet condensate system and a boiler water feed system to transfer heat to the low-pressure gas heater inlet condensate system. SOLUTION: This exhaust gas re-combustion type combined plant is provided with a high-pressure steam turbine 9 driven by the steam from a boiler 5, an intermediate- pressure steam turbine 10 driven by the steam obtained when the exhaust steam is reheated by the boiler 5, and a low-pressure steam turbine 11 driven by the exhaust steam of the intermediate-pressure steam turbine 10. A power generator 12 is driven by these steam turbines 9-11. The combined plant is also provided with a heat exchanger 29 heating condensate on the inlet side of a low-pressure gas heater 7 and a heat exchanger 30 heating feed water at the inlet of a high-pressure gas heater 6. The heat exchangers 29, 30 are connected by a pipe, a heat medium is circulated to increase the inlet condensate temperature of the low-pressure gas heater 7, and the low-temperature corrosion on the heat transfer surface of the low-pressure gas heater 7 is prevented.

4. 发明专利

JPH0370846A HEAT RECOVERING DEVICE AND OPERATING METHOD THEREOF 失效
公开(公告)号：JPH0370846A
公开(公告)日：1991-03-26
申请号：JP20682489
申请日：1989-08-11
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： INABA YOSHIAKI , TOKUNAGA KENJI , SHIMIZU AKIHIRO , KURIBAYASHI TETSUZO
IPC分类号： F02C6/18 , F01K3/00 , F01K23/10 , F02G5/02 , F24V30/00 , F28D20/00
摘要： PURPOSE:To effectively use energy by providing a vessel containing a reacting material heated by an exhaust gas and separated from a reacted material and generating a reaction heat when bonded with the reacted material, and a chemical heat accumulator device disposed in the vessel and containing a heat exchanging pipeline for passing a heat medium. CONSTITUTION:A high temperature gas is applied from a heating apparatus 1 to the first vessel 5 of the first chemical heat accumulator device 2 of first and second chemical heat accumulator devices 2, 2', and a low temperature gas after heat-exchanged by a heat exchanger 3 is applied to the gas duct of the second vessel 7' of the other chemical heat accumulator device 2'. Further, a heated heat medium is obtained from the heat exchanging pipeline 18 of the first vessel 5' of the other chemical heat accumulator device 2'.

5. 发明专利

JPS6162799A Back-washing device in double flow type condensor 失效
标题翻译：双流式冷凝器中的后洗涤装置
公开(公告)号：JPS6162799A
公开(公告)日：1986-03-31
申请号：JP18364684
申请日：1984-09-04
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： UTSUNO RIICHI , KURIBAYASHI TETSUZO
IPC分类号： F28B9/04 , F28B9/00 , F28G9/00
CPC分类号： F28G9/00
摘要： PURPOSE:To enable an opening or closing valve to be opened and a water discharging operation to be performed, and the opneing or closing valve is closed to enable either one of a normal and back-washing operation to be performed by a method wherein the opening or closing valve is arranged in a connection pipe for connecting from the water return water chamber of the condenser to the water discharging passage. CONSTITUTION:A connection pipe 7 having a stop valve 8 is connected to the water discharging pipe 6 from the cooling water return chamber of a condensor 5. In case of performing a reverse flashing in the condenser, the position of the valve body 4 of the flashing valve 3 is changed over from the normal washing position to the back washing position and at the same time the stop valve 8 is opened. The cooling water is flowed in the same manner as that of the normal washing just after the valve 4 is started to move from the port P1 to P2 and then a part of the cooling water is passed through the connection pipe 7 into the water discharging pipe 6. Subsequently, the valve 4 is gradually moved and when it is placed at a substantially intermediate position, the normal washing force from the port A to the port B and the reverse flashing force are balanced, and the stop valve 8 is opened, thereby the cooling water and a part of the cooling water from the port A to the port C are passed through the connection pipe 7 and into the water discharging pipe 6. Further, the valve body 4 is moved and the port P2 is closely contacted with the valve, and then the cooling water is flowed from the port A to the port B and the bacck washing condition of the water is attained.
摘要翻译：目的：为了使打开或关闭阀能够打开并进行排水操作，打开或关闭阀关闭，以使正常和反洗操作中的任一个能够通过一种方法进行，其中开启或关闭阀布置在用于从冷凝器的回水水室连接到排水通道的连接管中。构成：具有截止阀8的连接管7从冷凝器5的冷却水返回室连接到排水管6.在冷凝器中进行反向闪光的情况下，阀体4的位置闪光阀3从正常洗涤位置切换到后洗涤位置，同时打开截止阀8。在阀4开始从端口P1移动到P2之后，冷却水以与普通洗涤相同的方式流动，然后一部分冷却水通过连接管7进入排水管随后，阀4逐渐移动，并且当其被放置在大致中间位置时，从端口A到端口B的正常洗涤力和反向闪光力平衡，并且截止阀8打开，从而冷却水和从端口A到端口C的冷却水的一部分通过连接管7并进入排水管6.此外，阀体4移动，并且端口P2与阀，然后冷却水从端口A流到端口B，并且达到水的棒状洗涤状态。

6. 发明专利

JPS6155501A Waste-heat recovery boiler 失效
标题翻译：废热回收锅炉
公开(公告)号：JPS6155501A
公开(公告)日：1986-03-20
申请号：JP17503084
申请日：1984-08-24
申请人： Hitachi Ltd , Hitachi Eng Co Ltd
发明人： YANAI EIJI , KURIBAYASHI TETSUZO
IPC分类号： F22B1/18 , B01D53/86 , F01K23/10 , F22B37/00 , F23J15/00
CPC分类号： F23J15/006 , B01D53/8631 , F01K23/106 , F22B37/008 , F23J2219/10

7. 发明专利

JPH07208112A EXHAUST AFTERBURNING TYPE COMBINED PLANT OPERATING METHOD AND EXHAUST HEAT RECOVERING SYSTEM 失效
公开(公告)号：JPH07208112A
公开(公告)日：1995-08-08
申请号：JP567894
申请日：1994-01-24
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KUROBA SHIGEKI , ARASE HIROSHI , KURIBAYASHI TETSUZO , KOMATSU HIDEAKI
IPC分类号： F01K7/22 , F01K9/00 , F01K17/02 , F01K23/02 , F01K23/10 , F02C6/18
摘要： PURPOSE:To effectively use exhaust heat of a combined plant in air-conditioning, hot-water supply, and the like without returning excessive heat amount of a combined plant into a steam turbine cycle by separating a part of exhaust gas in a boiler, and supplying exhaust gas to the system outside a combined plant. CONSTITUTION:Exhaust gas of a boiler 5 is supplied to a high pressure gas heater 6 through a ventilation pipe 70, and heat recovery is carried out by the high pressure gas heater 6 at the time of feed water. Heat recovery is carried out by a low pressure gas heater 7 at the time of condensation, so that exhaust gas of the boiler 5 is cooled to about 100 deg. degree, and exhaust gas is discharged toward the atmosphere through a chimney 8. Especially, a branch pipe 71 for branching a part of exhaust gas of the boiler 5 is provided in the ventilation pipe 70. A heat accompanying supply plane 25 for supplying exhaust heat of boiler exhaust gas to the system outside a combined plant is arranged on one end of the branch pipe 71. It is thus possible to utilize exhaust heat of a power plant for air-conditioning, hot-water supply, and the like effectively without being influenced by the load fluctuation of a plant, improve overall heat efficiency, and reduce environmental pollution due to exhaust heat.

8. 发明专利

JPH0242102A METHOD FOR RECOVERING THERMAL ENERGY AND APPARATUS THEREOF 失效
公开(公告)号：JPH0242102A
公开(公告)日：1990-02-13
申请号：JP19205988
申请日：1988-08-02
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： ASAO TAKASHI , KUROSAWA KAZUHIRO , TAJIMA KAZUYUKI , TOKUNAGA KENJI , UEDA YOSHIO , KURIBAYASHI TETSUZO
IPC分类号： F01D25/08 , F01K13/00 , F01K23/02 , F01K25/10 , F02C6/18 , F02C7/06 , F02G5/00 , F02G5/04
摘要： PURPOSE:To aim at improvement of the total efficiency of a plant by recovering the exhaust heat of the cooling circulating system of the bearings of the main engine of a power generation plant and the attached auxiliary equipments thereof and cooling the cooling medium fluid of the cooling circulating system. CONSTITUTION:In a generator installation 8 by power generated by a gas turbine installation providing an air compressor 4, a combustor 5 and a gas turbine 6, an absorbing type heat pump installation 19 is provided. Fluid used in a heat energy using installation is introduced to the absorbing type heat pump installation 19 to be heat-exchanged the exhaust heat of a bearing cooling water system and the thermal energy of another heat resource installation to rise the temperature thereof. Freshwater which is the medium of the exhaust heat of a bearing cooling water system is led to the absorbing type heat pump installation 19 by a forced pump 2 for a shaft cooling water heat pump to be cooled by the evaporator of the installation 19 and then to be supplied to the cooling water system of respective equipments.

9. 发明专利

JPH07305608A BOILER EXHAUST HEAT RECOVERY EQUIPMENT OF FULL FIRED HEAT RECOVERY COMBINED PLANT 失效
公开(公告)号：JPH07305608A
公开(公告)日：1995-11-21
申请号：JP9606194
申请日：1994-05-10
申请人： HITACHI ENG CO LTD , HITACHI LTD
发明人： ARASE HIROSHI , KUROBA SHIGEKI , KURIBAYASHI TETSUZO , KOMATSU HIDEAKI
IPC分类号： F01K7/40 , F01K23/10 , F02C6/18 , F22B1/18 , F22B31/08
摘要： PURPOSE:To obtain boiler exhaust heat recovery equipment of a full fired heat recovery combined plant which shows excellence in economic performance and maintenance. CONSTITUTION:A condensate/forced draft air heat exchanger 20 is arranged in series to a condensate heating heat exchanger 7 in a condensate system III, and on a forced draft air feeding system I. A feedwater/forced draft air heat exchanger 21 is arranged serially to a feedwater heating heat exchanger 6 in a feedwater system IV, and on the forced draft air system I. Heat recovery to the forced draft air in the condensate/forced draft air heat exchanger 21 is conducted by condensate subjected to heat recovery from the boiler exhaust gas by the condensate heating heat exchanger 7. Heat to the forced draft air in the feedwater/forced draft air heat exchanger 20 is recovered by feedwater subjected to heat recovery from the boiler exhaust gas by the feedwater heating heat exchanger 6.

10. 发明专利

JPH06159008A MONITORING, PROTECTION, AND PERFORMANCE MANAGING DEVICE OF STEAM TURBINE FORCED COOLING DEVICE 失效
公开(公告)号：JPH06159008A
公开(公告)日：1994-06-07
申请号：JP31723092
申请日：1992-11-26
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SUZUKI SHINYA , KURIBAYASHI TETSUZO , KOMATSU HIDEAKI
IPC分类号： F01D25/00 , F01D25/12
摘要： PURPOSE:To carry out an effective monitoring and protection of a steam turbine forced cooling device and a turbine main engine in the forced cooling, and a highly accurate performance management which can predict the variation of the device performance following the change of the operating condition early, and can control the performance in an optimum condition. CONSTITUTION:Signals detected continuously by numerous detectors 19 to 31 provided to a steam turbine forced cooling device and to a turbine main engine are taken into a computer 32 to carry out a conversion, an operation, and a deciding process, the results are output to a CRT 33 to be displayed, and furthermore, when the turbine main engine or the device generates an abnormal condition, or the cooling property is made in a large deflection, it is output to an alarm device device 38 and a control device 43, so as to carry out an abnormality display and a protective control, or an optimum air flow control.

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