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1. 发明专利

JPH06137501A SUPERCRITICAL VARIABLE PRESSURE OPERATING STEAM GENERATOR 失效
公开(公告)号：JPH06137501A
公开(公告)日：1994-05-17
申请号：JP28597892
申请日：1992-10-23
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAWAMURA TOMOTSUCHI , TOYODA TAKAHARU , IWABUCHI MAKIO , GENGO TADASHI , FUJIMOTO AKIHIKO
IPC分类号： F22B3/08 , F22B37/12
摘要： PURPOSE:To improve a temperature distribution at an outlet of a peripheral wall of a combustion chamber by setting a ratio of a heat absorption amount of the chamber to a feed water flow rate to a special value. CONSTITUTION:A ratio of a heat absorption amount to a feed water flow rate is so set that a mean specific enthalpy of working fluid of an outlet of a peripheral wall 05 of a combustion chamber becomes larger than a specific heat maximum point of a range of relatively large specific heat and an intermediate value or less of a specific enthalpy of a specific heat maximum point and a specific enthalpy of a point of a specific heat 10kj/kg at a maximum continuous load. A convection heat transfer type rear heater 06 is installed at a position of a downstream side of a heater 08 having relatively low combustion gas temperature to introduce the fluid from the outlet of the wall 05 to the heater 06, and a heat transfer area to be heated until the specific enthalpy becomes larger than that of saturated steam even in a lowest load to be passed through is formed. Thus, an excellent temperature distribution can be obtained at the outlet of the wall 05 at the times of maximum load (supercritical pressure operation) and partial load (subcritical pressure operation).

2. 发明专利

JPS63161302A CORROSION PROTECTIVE METHOD OF GENERATING TUBE 失效
公开(公告)号：JPS63161302A
公开(公告)日：1988-07-05
申请号：JP30635086
申请日：1986-12-24
申请人： MITSUBISHI HEAVY IND LTD
发明人： UEYOSHI HARUO , TOYODA TAKAHARU , KOYASHIKI YUSUKE , HARADA YOSHIO , NAKAMORI MASAHARU , MIZOGUCHI TAKASHI
IPC分类号： F22B37/10 , F28F19/06

3. 发明专利

JPS529672A A FLUID PASSAGE APPARATUS PASSING INTO HIGHHTEMPERATURE GAS 失效
公开(公告)号：JPS529672A
公开(公告)日：1977-01-25
申请号：JP8529675
申请日：1975-07-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： TOYODA TAKAHARU , NAKAJIMA YASUSHI
IPC分类号： B05B1/20 , B01D53/34 , B01D53/56 , B01D53/81 , B01F3/02 , B01F15/06 , B01J4/00 , F22B37/00 , F23J15/00 , G01N1/22 , G01N1/24
摘要： PURPOSE:An apparatus for feeding fluid into high-temperature gas, for example, feeding and dispersing NH3, etc. into the high-temperature combustion gas in the specific temperature region of a boiler to reduce NOx in the gas.

4. 发明专利

JPH0868506A COAL COMBUSTION DEVICE 失效
公开(公告)号：JPH0868506A
公开(公告)日：1996-03-12
申请号：JP20656794
申请日：1994-08-31
申请人： MITSUBISHI HEAVY IND LTD
发明人： SONODA KEISUKE , TAKEGAWA TOSHIYUKI , TOKUDA KIMIYO , KOBAYASHI YOSHINORI , TOYODA TAKAHARU , NAKAJIMA FUMIYA
IPC分类号： F23D1/02 , C10J3/48
摘要： PURPOSE: To continuously operate a furnace for a long time without generating the splash of slag and a solid-phase slag which results in closing of the furnace by mounting a plate-Be vortex breaker on the inner wall of the ceiling part and the throttle part of an upper combustion furnace. CONSTITUTION: A coal combustion device is constructed in such a way that pulverized coal is swirled and burnt in a cylindrical combustion furnace 3, ash is captured by a furnace wall by a centrifugal force and dropped onto the bottom part of the combustion furnace 3 and combustion produced gas is supplied outside the furnace 3 via a conical diffuser 6 from the upper throttle part 2 of the combustion furnace 3. A plate-like vortex breaker 1A is mounted on the inner wall of the ceiling part 4 ad the throttle part 2 of the combustion furnace 3. As a result, the swirl flow of gas in the vicinity of the inner wall surfaces of these parts is damped, so that the swirl flow in the combustion furnace 3 is not transmitted to a diffuser 6 or a reductor 7. Thus, pushing-up force due to the gas of molten slag adhering to the wall surfaces of the ceiling part 4 ad the throttle part 2 is suppressed and the molten slag does not reside in the diffuser 6.

5. 发明专利

JPH0666712A TESTING METHOD FOR COAL FRIABILITY 失效
公开(公告)号：JPH0666712A
公开(公告)日：1994-03-11
申请号：JP24575592
申请日：1992-08-21
申请人： CHUBU ELECTRIC POWER , MITSUBISHI HEAVY IND LTD
发明人： INOUE TOSHIO , MIWA MASARU , KUMAZAKI OSAMU , ARIMA KENICHI , YOSHIDA HIROHISA , TOYODA TAKAHARU , ARAKI TAKEO
IPC分类号： B02C15/00 , B02C17/00 , B02C23/00 , G01N15/02 , G01N33/24
摘要： PURPOSE:To evaluate accurate friability by setting a particle size after coal sample is pulverized to a special value. CONSTITUTION:Coal sample 3 is charged by its own weight from an inlet 4 into a cylindrical pulverizer 1, and the pulverizer 1 is rotated to pulverize the sample 3. Purging air 5 is fed from a nozzle 6 while rotating the pulverizer 1, and the pulverized sample 3 is discharged from an exhaust port 7. A particle size after the sample is pulverized is set to a pass amount 20-80% of 200#. Thus, coal particle size after pulverizing is close to actual pulverizer to obtain friability satisfactorily coincident with actual operation data of the pulverizer. A method for testing coal friability in which more accurate friability can be evaluated is obtained.

6. 发明专利

JPH04353226A COAL BURNING TYPE COMPOUND POWER GENERATION EQUIPMENT 失效
公开(公告)号：JPH04353226A
公开(公告)日：1992-12-08
申请号：JP12749191
申请日：1991-05-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： TOYODA TAKAHARU , GENGO TADASHI , SHINADA OSAMU
IPC分类号： F01K23/10 , F02C3/28 , F02C6/18 , F23K1/00 , F23K1/04
摘要： PURPOSE:To obviate the need of a hot air generating furnace and the excessive fuel supply and improve efficiency, by drying coal by using the air heated in a heat exchanger by the exhaust gas extracted from an exhaust gas boiler. CONSTITUTION:Coal 18 is pulverized, dried and gasified in a coal gasification furnace 1, and the gas is burnt and changed to the combustion gas, and the obtained gas is used as the power source for a gas turbine 6. An exhaust gas boiler 7 which uses the exhaust gas generate steam 8 which is used as the power source for a steam turbine 9. In this case, a heat exchanger 13 for heating air by the exhaust gas extracted from the exhaust gas boiler 7 is installed. The coal 18 is dried by a device 16 for pulverizing, drying and feeding coal, utilizing the air heated by the heat exchanger 13. Accordingly, the need of a hot air generating furnace and the excessive fuel supply is obviated, and the efficiency of the power generation equipment can be improved.

7. 发明专利

JPH03286905A BURNER BURNING PULVERIZED SOLID FUEL 失效
公开(公告)号：JPH03286905A
公开(公告)日：1991-12-17
申请号：JP8496590
申请日：1990-04-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： TOKUDA KIMIYO , OGURI MASAHARU , TOYODA TAKAHARU
IPC分类号： F23D1/00 , F23C99/00
摘要： PURPOSE:To provide a burner burning solid fuel with good ignitability by providing a first separator which separates the solid fuel mixture gas into a high concentration solid fuel mixture gas and low concentration solid fuel mixture gas, a low concentration solid fuel mixture gas nozzle, a second separator which separates the high concentration solid fuel mixture gas into a super-high concentration solid fuel mixture gas and a low concentration solid fuel mixture gas, and a high concentration solid fuel mixture gas nozzle. CONSTITUTION:A pulverized coal mixture gas 09 (A/C = 2-4) which is fed into a pulverized coal separator 20 is separated here to a high concentration pulverized coal mixture gas 25 (A/C = 1.5+ or -0.5) and low concentration pulverized mixture gas 26 (A/C = 5-20), and those mixture gases are fed respectively to a high concentration pulverized coal transporting pipe 23 and a low concentration pulverized coal transporting pipe 24, and the low concentration pulverized coal mixture gas 26 passes through a low concentration pulverized coal transporting pipe 24 and is supplied to a low concentration pulverized coal mixture gas nozzle 22. On the other hand, the high concentration pulverized coal transporting pipe 23 is provided with a deflected flow device 28 and the flow of the high concentration pulverized coal mixture gas 25 that is fed through it is deflected downwards by deflection flow boards 28a and 28a'. The super-high concentration pulverized coal mixture gas 25a and low concentration pulverized coal mixture gas 25b that are formed at the outlet section of a deflection flow device 28 keep their division by a twisted board 27 and they are respectively fed to the upper injection outlet 21a and the lower injection outlet 21b of the high concentration mixture gas nozzle 21. With this arrangement a low concentration solid fuel mixture gas and high concentration solid fuel mixture gas with a poor ignitability can be burned stably.

8. 发明专利

JPS62166209A BURNER 失效
公开(公告)号：JPS62166209A
公开(公告)日：1987-07-22
申请号：JP653086
申请日：1986-01-17
申请人： MITSUBISHI HEAVY IND LTD
发明人： HANEDA TOSHIO , KASHIWAZAKI MASAMICHI , FUKAHORI KAZUSANE , TOYODA TAKAHARU , SAKAI MASAYASU , TOKUDA KIMIYO , OGURI MASAHARU , KAI SHOICHI
IPC分类号： F23C5/32 , F23C99/00
摘要： PURPOSE:To reduce NOx by ejecting a fuel and primary air in the tangential direction of a primary virtual circle having a small radius and secondary air in the tangential direction of a secondary virtual circle having a large diameter. CONSTITUTION:A nozzle 8 for a fuel mixed gas is directed toward the tangential direction 14 of a primary virtual circle 12 of a small diameter within a planar section of a furnace 2, and secondary air nozzle 9 is directed toward the tangential direction 15 of a virtual circle 13 concentric with the virtual circle 12 and having a diameter larger than that of the circle 12. Further, air nozzles 10 and 11 are directed toward the tangential direction 17 of a virtual circle 16 concentric with the virtual circle 13 and having a diameter smaller than that of the circle 13. A region of a concentrated reducing atmosphere and a region 20 of an oxidation atmosphere encircling the region 19 are constituted in a space of the furnace by a turning fire ball 18. The reducing atmosphere region 19 is charged with air 11 for three-stage burning. The heat of a gas 22 generated by burning and forming an oxidizing atmosphere at the upper part 21 of the furnace 21 is recovered on the heat transfer surface within a flue 23 and contributes to the generation, overheating and reheating of vapor, thus reaching a boiler outlet 24. Hence, the increase of Nox is prevented by forming the reducing atmosphere at the central portion in the section of the furnace and the oxidation atmosphere in the periphery of the wall of the furnace.

9. 发明专利

JPS5743192A Heat recovery boiler for 失效
标题翻译：热回收锅炉
公开(公告)号：JPS5743192A
公开(公告)日：1982-03-11
申请号：JP11789480
申请日：1980-08-27
申请人： Mitsubishi Heavy Ind Ltd
发明人： FUKAHORI KAZUSANE , TOYODA TAKAHARU , SADA TETSUO
IPC分类号： F27D15/02 , F27D17/00 , F28C3/16

10. 发明专利

JPS63225520A METHOD FOR RECOVERING MAGNESIUM HYDROXIDE 失效
公开(公告)号：JPS63225520A
公开(公告)日：1988-09-20
申请号：JP5677587
申请日：1987-03-13
申请人： MITSUBISHI HEAVY IND LTD
发明人： TANAKA KENJI , UEJIMA NAOYUKI , TOYODA TAKAHARU , NAKAJIMA MICHIO , ONODERA TAKESHI , AKIMOTO MASAO
IPC分类号： C02F1/24 , C01F5/14 , C01F5/22
摘要： PURPOSE:To increase purity of magnesium hydroxide and to eliminate the need of another device for treatment of waste water, by adding calcium compd. to a sea water or a liq. contg. magnesium compd., diluting the obtained suspension with water, furthermore adjusting pH of the suspension with hydrochloric acid and then bringing said suspension into pressurized floatation treatment. CONSTITUTION:The sea water or the liq. contg. magnesium compd. (e.g. slaked lime) to be

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