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1. 发明专利

JPH0282002A OPERATION OF BOILER OF REHEATING TYPE 失效
公开(公告)号：JPH0282002A
公开(公告)日：1990-03-22
申请号：JP23254788
申请日：1988-09-19
申请人： MITSUBISHI HEAVY IND LTD
发明人： ARAOKA MAMORU , ASAYAMA HIDEKI , TSUKINO TAKASHI , FUJINO TETSUYA
IPC分类号： F01K7/22 , F01K7/24 , F22B35/00
摘要： PURPOSE:To shorten the time to start a boiler and respond rapidly and safely to an independent load operation in a power station and attempt to save energy by drawing the steam or drain water from a boiler main steam system, supplying the steam or drain water to a reheating device and then supplying the steam or drain water to a separately installed turbine at the time of starting the boiler and during its operation under an independent load. CONSTITUTION:At the time of starting a boiler and during its operation under an independent load, a control valve 15a is opened and the steam or drain water from a primary superheater 1 is led to a reheating device 8 via a pipe 15 connecting the superheater and reheating device and the steam or drain water is flowed to the reheating pipe. At the same time a control valve 16 is opened and the steam or drain water that is out of the reheating device 8 is supplied to a separately installed turbine 18 via a pipe passage 17 for rotating the separately installed turbine 18 and a generator 19 to generate electricity. With this arrangement when the reheating device pipe is cooled, the limitation of fuel supply to the boiler which is required for keeping the pipe metal temperature below the limit temperature of use can be removed, and it is possible to attempt to shorten the time of starting and enlarge the usefulness for independent operation. Further, because the steam that is generated at this time is utilized for generating electricity, it is possible to recover the thermal energy which is discarded so far.

2. 发明专利

JPH04331888A LARGE DIAMETER FLANGE STRUCTURE FOR STEEL CONTAINER 失效
公开(公告)号：JPH04331888A
公开(公告)日：1992-11-19
申请号：JP12458791
申请日：1991-04-30
申请人： MITSUBISHI HEAVY IND LTD , CHORYO SEKKEI KK
发明人： MIZOGAMI YORIMASA , ASAYAMA HIDEKI , YAMAGUCHI HIDEYUKI
IPC分类号： B65D90/08 , F16L23/024 , F16L23/026 , F16L23/028
摘要： PURPOSE:To reduce the degree of mouth opening and to enhance the safety and reliability of a large dieter flange structure for a steel container by arranging hub parts of upper and lower flanges on the inside and outside of a fastening position so that the degrees of deformation of the upper and lower flanges are designed to be equal to that of reverse deformation thereof. CONSTITUTION:A large flange structure for a steel container is composed of upper and lower flanges 1, 5. That is, the upper flange 1 is formed of flange part 2, a hub part 3 and a cylindrical part 4. Meanwhile, the lower flange 5 is composed of a flange part 6, a hub part 7 and a cylindrical part 8. Further, the upper and lower flanges 1, 5 are connected by bolts 9, and leakage of enclosed fluid is prevented by a seal part 10. In this case, the upper and lower flanges 1, 5 have different shapes, and the cylindrical parts 4, 8 incorporating the hubs 3, 7 are arranged on the outside and inside of a fastening position, respectively. Accordingly, the deformations of the upper and lower flanges 1, 5 are designed to be equal to each other, thereby it is possible to decrease the degree of mouth opening.

3. 发明专利

JPS62255703A DRAIN PIPING FOR BOILER 失效
公开(公告)号：JPS62255703A
公开(公告)日：1987-11-07
申请号：JP9815786
申请日：1986-04-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： NAITO SHUZO , NAKAJIMA YASUSHI , ASAYAMA HIDEKI , AIKI HIDETOSHI
IPC分类号： F16T1/00 , F22B37/50

4. 发明专利

JPH0585802B2 失效
公开(公告)号：JPH0585802B2
公开(公告)日：1993-12-08
申请号：JP7109483
申请日：1983-04-22
申请人： MITSUBISHI HEAVY IND LTD
发明人： SADA TETSURO , TAKAGI MITSUHARU , ASAYAMA HIDEKI
IPC分类号： F22B37/10 , F23M5/00 , F23M5/08

5. 发明专利

JPH03286901A METHOD OF STARTING BOILER 失效
公开(公告)号：JPH03286901A
公开(公告)日：1991-12-17
申请号：JP8773990
申请日：1990-04-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： MATSUMOTO MASAHISA , ASAYAMA HIDEKI
IPC分类号： F22B35/14 , F22B37/00
摘要： PURPOSE:To removes fatigues and damages that develop at various sections of a boiler and extend its life by operating for only a certain time a gas draft fan for recirculation before the start of the supply water pump for the boiler at the time of its starting and circulating the gas staying in the furnace of the boiler. CONSTITUTION:Before starting the supply water pump 3 of a boiler a gas draft fan 26 for recirculation is operated for a certain time (for instance, 60 minutes) to circulate the gas staying in the furnace of the boiler for the purpose to make the temperatures at the lower section and upper section of the water cooled wall of the furnace and at the flue section at the rear section close to one another. After this, unit starting, namely starting of a forced draft fan 19 and a supply water pump 3 of the boiler is made. The temperature difference between the water-cooled wall 1 of the furnace and the flue wall 2 at the rear section is improved, and as a result the stresses are eased. And the phenomenon of a sudden change in the temperature of the upper section of the water cooled wall of the furnace is improved so that the stresses at the pipe base section at the outlet header 13 of the water-cooled wall of the furnace, the stresses at the metal fittings attached to the water-cooled wall of the furnace, and the joints of the metal fittings attached to the water-cooled wall of the furnace and the water cooled wall of the furnace are also improved.

6. 发明专利

JPS59197707A Furnace bottom structure 失效
标题翻译：炉底结构
公开(公告)号：JPS59197707A
公开(公告)日：1984-11-09
申请号：JP7109483
申请日：1983-04-22
申请人： Mitsubishi Heavy Ind Ltd
发明人： SADA TETSUROU , TAKAGI MITSUHARU , ASAYAMA HIDEKI
IPC分类号： F22B37/10 , F23M5/00 , F23M5/08

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