专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明专利

JPS6370005A BOILER 失效
公开(公告)号：JPS6370005A
公开(公告)日：1988-03-30
申请号：JP21166786
申请日：1986-09-10
申请人： MITSUBISHI HEAVY IND LTD
发明人： TOYODA TAKAHARU , ARAKI TAKEO , KAMATA TOSHIHIRO , TOKUDA KIMIYO , TAKADA JIRO
IPC分类号： F23C5/32 , F22B31/00
摘要： PURPOSE:To reliably prevent reduction corrosion of a furnace wall surface and a furnace wall pipe exposed to an atmosphere having high reducing properties, by a method wherein at least an auxiliary air compartment at the uppermost stage is directed to a position located closer to a furnace wall surface than to the same charging direction of a fuel burner compartment and remaining other auxiliary air compartment. CONSTITUTION:Only the auxiliary compartment at the uppermost stage 3' of a plurality of auxiliary air compartments 3 is mounted in a position situated closer to a furnace wall surface 1 than to a fuel burner compartment 2 and remaining other auxiliary air compartments 3, i.e., a position being displaced approximately 10 deg. from the furnace wall surface 1. By raising up to the level of the compartment 3' in swirl, a virtual circle 6 surrounding a virtual circle 5 internally thereof is formed. Combustion is continued in a state that the other periphery of a flame flow is surrounded with air for combustion fed through the compartment 3', and the furnace wall surface 1 in a region part ranging from the compartment 3' to an additional air compartment 4 is brought into contact with a flame swirling along the virtual circle 6 and containing a high quantity of oxygen.

12. 发明专利

JPS62131106A BURNING METHOD OF STEAM GENERATOR 失效
公开(公告)号：JPS62131106A
公开(公告)日：1987-06-13
申请号：JP27137185
申请日：1985-12-04
申请人： MITSUBISHI HEAVY IND LTD
发明人： TOYODA TAKAHARU , KASHIWAZAKI MASAMICHI , HANEDA TOSHIO
IPC分类号： F23C99/00
摘要： PURPOSE:To keep the generation of NOx in a low level by flowing a part of air along furnace walls near burners to keep only the neighborhood of the furnace walls in an oxidizing atmosphere. CONSTITUTION:At the lower, middle, and upper locations of burners 2 a plurality of air nozzles 8, 9 are placed and the input of a certain amount of air (10-20% of theoretical air amount) into a furnace 1 from those nozzles results in forming air layer only at the neighborhood of furnace wall surfaces and sealing the front wall 1a, the back wall 1b, and the both side walls 1c not to be exposed directly to strong reducing gas. Further, as the upper air nozzles 3 are placed above the burners 2 and remaining air necessary to complete burning is put into the furnace 1 from those nozzles, an atmosphere is gradually changed into the oxidizing one to complete burning reaction at the outlet of the furnace 1. As reliable air layers are formed at the neighborhood of the furnace walls, furnace wall tubes are surely prevented from corroding and also adhesion of molten ash on the surfaces of the furnace wall tubes is reduced, when coal is used and reduction of NOx is able to be more surely carried out.

13. 发明专利

JPS62116802A Method of controlling humidity of flame spraying treatment environment to heat transfer tube 失效
标题翻译：控制火焰喷涂处理环境对传热管的影响的方法
公开(公告)号：JPS62116802A
公开(公告)日：1987-05-28
申请号：JP25670885
申请日：1985-11-18
申请人： Mitsubishi Heavy Ind Ltd
发明人： HARADA YOSHIO , NAKAMORI MASAHARU , TOYODA TAKAHARU , KISHIDA SHIGERU , HONDA SHUJI
IPC分类号： F28G13/00 , F22B37/00 , F23J3/00

14. 发明专利

JPS6121352B2 JPS6121352B2 - 失效
公开(公告)号：JPS6121352B2
公开(公告)日：1986-05-27
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

15. 发明专利

JPH05340854A 失效
公开(公告)号：JPH05340854A
公开(公告)日：1993-12-24
申请号：JP17379492
申请日：1992-06-08
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： B02C23/00 , G01N3/00
摘要： PURPOSE:To reduce the man-hour and construction period of a coal grindability test using a cylindrical grinder. CONSTITUTION:In this method for previously evaluating the grindability of coal which is introduced into a grinder for grinding, a coal specimen 3 whose particulate diameter is adjusted previously and whose surface content is adjusted to 0% or less by drying is introduced into a cylindrical grinder 1 which incorporates a grinding media 2 and rotates around its own axis and is ground for a certain amount of time, thus automatically drying the carbon specimen readily and reducing the man-hour and construction period of the coal grindability test.

16. 发明专利

JPH05149523A SLUG TAP FURNACE 失效
公开(公告)号：JPH05149523A
公开(公告)日：1993-06-15
申请号：JP31464691
申请日：1991-11-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： KOYAMA TOMONORI , TAKEGAWA TOSHIYUKI , IKEDA NOBUYUKI , KUNIMOTO TAKESHI , TOYODA TAKAHARU
IPC分类号： F23J1/08
摘要： PURPOSE:To make it possible to discharge molten slug in such a way that it may flow down stably and continuously by installing a water cooling metal plane to a molten iron cutting section which melts and discharges slugs in a slug tapping section, especially ashes contained in coal as slugs. CONSTITUTION:A water-cooled metal plane (water-cooled jacket) 10 is installed to the whole area from a molten iron cutting section inlet 9a to a molten iron cutting section 9b around a slug discharge hole 8. The length from the molten iron cutting section inlet 9a to the upper end 11 of the water-cooled metal plane 10 is specified as about 5 to 30mm while the length from the upper end 11 of the water-cooled metal plane to the molten iron cutting section 9b is specified as about 10 to 100mm. This construction makes it possible to provide sufficient heat, which is generated by combustion flames in a combustion chamber, to the molten slugs flowing on the combustion chamber bottom wall surface 6 directed at a discharge hole up to the water-cooled metal plane and force the molten slugs to flow with sufficient fluidity so that the slugs may be discharged smoothly by continuous flow down and molten-iron cutting from the upper end of the water-cooled metal plane.

17. 发明专利

JPH03125809A SOOT BLOWER AUTOMATIZING DEVICE 失效
公开(公告)号：JPH03125809A
公开(公告)日：1991-05-29
申请号：JP26381789
申请日：1989-10-12
申请人： MITSUBISHI HEAVY IND LTD
发明人： FUJIWARA TOSHIKATSU , MASUDA MAKIO , MIYAGAWA HIROKAZU , TOYODA TAKAHARU , NAITO SHUZO
IPC分类号： F23J3/00
摘要： PURPOSE:To make it possible to blow soot at a suitable timing by the constitution that a fouling factor estimation section which inputs observation values from a plant outputs the fouling factor of a heat exchanger and it sends control signal to a soot blower when the fouling factor goes beyond a threshold value and it lets the soot blower blow soot for a certain time. CONSTITUTION:A fouling factor estimation section 3 inputs observation values such as the temperature, pressure, etc. from a plant 1 which is provided with a heat exchanger and employs least square method to output a fouling factor 4 of the heat exchanger calculated based on a formula. A threshold value setting device 6 sets a threshold value of the fouling factor 4. A comparator 5 inputs the threshold value from the threshold setting device 6 and inputs the fouling factor 4 from the fouling factor estimation section 3 and outputs a signal as a result of comparison. A command device 7 inputs signal from the comparator 5, and when the fouling factor goes beyond the threshold value, it outputs a control signal to a soot blower 8 to drive it. In the formulae, W=CfWf+CmWm, and Cf is the specific heat value of the fluid in the heat exchanger pipes, Cm the specific heat value of the heat exchanger pipes, Wf the weight of the fluid in the heat exchanger pipes, Wm the weight of the heat exchanger pipes, DELTAt the sampling period, and thetam(-1) represents the average temperature of the pipes the time DELTAt before.

18. 发明专利

JPH0369508A METHOD FOR FIXING GASEOUS CARBON DIOXIDE 失效
公开(公告)号：JPH0369508A
公开(公告)日：1991-03-25
申请号：JP20130089
申请日：1989-08-04
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAWAMURA TOMOTSUCHI , TOYODA TAKAHARU , KOBAYASHI TAKAFURU , YAMADA AKIRA
IPC分类号： C01B32/50
摘要： PURPOSE:To safely and stably fix gaseous carbon dioxide without need for a large-scale device by solidifying and liquefying gaseous carbon dioxide, charging the solid or liq. in a bag-shaped vessel, sinking the vessel into the sea to a specified depth by gravity and preserving carbon dioxide as a liq. CONSTITUTION:The gaseous carbon dioxide such as the gaseous carbon dioxide contained in the waste combustion gas separated by the pressure swing adsorption method is supplied to a high-pressure compressor 1, compressed, cooled by a refrigerator 2 and liquefied. The liquefied carbon dioxide is charged into a tank 3, and then successively packed into a bag-shaped vessel 6 by a packing pump 4. Alternatively, carbon dioxide is converted into dry ice powder and packed into the vessel 6. The packed vessel 6 is sunk by gravity to the bottom of the sea at the depth of >=500m or preferably >=1000m. Consequently, the carbon dioxide in the vessel 6 is stably cooled to 0-10 deg.C throughout the year and pressurized at >=50atm, and the carbon dioxide is stably preserved in the vessel 6 as a liq. and fixed.

19. 发明专利

JPS6362529A METHOD FOR UTILIZING EFFLUENT DISCHARGED FROM FLUE-GAS DESULFURIZING PROCESS 失效
公开(公告)号：JPS6362529A
公开(公告)日：1988-03-18
申请号：JP20680186
申请日：1986-09-04
申请人： MITSUBISHI HEAVY IND LTD
发明人： HARADA YOSHIO , MIYAKE TAKASHI , TANAKA KENJI , KADOTA FUMIO , TOYODA TAKAHARU , NAKAJIMA MICHIO
IPC分类号： F23C99/00 , B01D53/34 , B01D53/50 , B01D53/77
摘要： PURPOSE:To prevent the corrosion of a boiler by adding an alkali compd. to desulfurization waste liquid contg. Mg compd., filtering and dehydrating the ppt. of produced Mg(OH)2 and adding a surface active agent to form a slurry and injecting this into the boiler. CONSTITUTION:An alkali compd. such NaOH, Ca(OH)2 is added to waste liquid contg. MgSO4 produced in a desulfurizing stage and pH is regulated to >=10.5 to precipitate Mg(OH)2 and this ppt. is filtered, washed with water and dehydrated with a filter press or the like. A surface active agent such as ethylene glycol sodium or magnesium alkylbenzenesulfonate is added to Mg(OH)2 to form an aq. slurry or oily slurry and thereby a corrosion protective additive for a boiler is produced. High-temp. corrosion by S and V can be prevented with this corrosion protective additive for a boiler.

20. 发明专利

JPS62224627A OXIDATION RESISTANCE TREATMENT FOR HEAT RESISTING STEEL 失效
公开(公告)号：JPS62224627A
公开(公告)日：1987-10-02
申请号：JP6954586
申请日：1986-03-27
申请人： MITSUBISHI HEAVY IND LTD
发明人： HARADA YOSHIO , SHONO SUSUMU , TOYODA TAKAHARU
IPC分类号： C21D1/00 , C21D8/10
摘要： PURPOSE:To improve oxidation resistance to high temp. steam, by cold working the inner surface of heat resisting steel pipe made of high Cr steel or austenitic stainless steel through which high temp. steam is communicated, then irradiating laser beam and rapidly cooling the surface. CONSTITUTION:The inner surface of a pipe material 1 for passing high temp. steam such as heat transfer pipe of boiler for thermal power generation made of high Cr heat resisting steel contg. >=13% Cr or Ni-Cr austenitic stainless steel, etc., is subjected to cold workings such as roller finishing, shot blasting and shot peening. Tightly closing plates 4 having an inlet 2 and an outlet 3 for gas are attached to both ends of the pipe 1, gaseous Ar is fed in the pipe 1 from the inlet 2 and exhausted from the outlet 3 to obtain gaseous Ar atmosphere. Successively, a laser beam 5 is introduced in the pipe 1 through a crystal lense 6 made of KCl, inner surface of steel pipe is irradiated with a reflecting mirror 7 to heat it to 800-1,050 deg.C. The surface is locally melted and water cooled from outer part of steel pipe. Inner surface of the pipe 1 is made amorphous or fine grain layer is formed to improve oxidation resistance to high temp. steam.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式