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1. 发明专利

JP2009079830A Solid fuel crushing supply device and method 有权
标题翻译：固体燃料粉碎装置及方法
公开(公告)号：JP2009079830A
公开(公告)日：2009-04-16
申请号：JP2007249353
申请日：2007-09-26
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： FUKUMOTO FUMIO
IPC分类号： F23K3/02 , F23K1/00
摘要： PROBLEM TO BE SOLVED: To provide a solid fuel crushing supply device and a method, capable of maximally forming a facility of an air carrying system to a boiler of solid fuel such as biomass and coal in a small scale. SOLUTION: A biomass carrying fan 5 is arranged in a system of a mill 3 of the biomass in a system for inputting fuel to the boiler by supplying carrying air of the coal finely crushed by a coal mill 7 from a PAF 13, by supplying combustion air from an FDF 11. The finely crushed biomass is carried by the air, and fine powder solid fuel is separated and collected by a cyclone 4, and the air is introduced as it is to a front flow of an air preheater 12 of the boiler, and is mixed with the combustion air from the FDF11, and is supplied to a burner 9, and is used as the combustion air. Fine powder biomass collected by the cyclone 4 is inputted to a coal feeder 6, and afterwards, a mixing rate quantity with the coal is uniformed by being supplied in the mill 7 simultaneously with the coal. Fan motive power such as the FDF11 can be reduced by using the air used for carrying the fine powder biomass as the combustion air. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种固体燃料破碎供给装置和方法，能够以小规模最大限度地形成空气承载系统的设备到固体燃料如生物质和煤的锅炉。解决方案：一种生物质携带风扇5配置在用于通过从煤磨机7从PAF 13细粉碎的煤的输送空气向锅炉输入燃料的系统中的生物质的研磨机3的系统中，通过从FDF 11供应燃烧空气。细粉碎的生物质被空气携带，细粉末固体燃料被旋风分离器4分离和收集，空气被原样引入空气预热器12的前流并与来自FDF11的燃烧空气混合，并被供给到燃烧器9，并用作燃烧空气。由旋风分离器4收集的细粉生物质被输入到给煤机6中，之后与煤同时供给与煤的混合量均匀。通过使用用于承载细粉生物质的空气作为燃烧空气，可以减少诸如FDF11的风扇动力。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2000074306A Top bottom temperature difference reducing device of boiler 审中-公开
标题翻译：锅炉顶部温度差降低装置
公开(公告)号：JP2000074306A
公开(公告)日：2000-03-14
申请号：JP24516298
申请日：1998-08-31
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： FUKUMOTO FUMIO , YAMAUCHI HIDENORI
IPC分类号： F22D7/00
摘要： PROBLEM TO BE SOLVED: To reduce a top bottom temperature difference of a boiler by circulating the retained water of an evaporating part such as a furnace at the boiler banking time.
SOLUTION: In a top bottom temperature difference reducing device of a boiler, a furnace circulation path 9 is provided that connects an outlet of a boiler evaporator 2 and a superheater spray path 8, a small volume pump 10 is provided in the furnace circulation path 9, and the retained water of the boiler furnace is circulated by the pump 10 at the boiler banking time. In the top bottom temperature difference reducing device of the boiler, a bypass path 11 of the pump is provided so that the degree of superheat is controlled by opening a valve 14 of the pump bypass path 11 during a normal operation of the boiler. Further, a furnace circulation path is provided that connects an outlet of a boiler evaporator and a superheater spray path, a bypass path is provided to a downflow pipe to a furnace inlet of a boiler so as to install a pump on the bypass path, and the retained water of a boiler furnace is circulated by the pump at the boiler banking time.
COPYRIGHT: (C)2000,JPO
摘要翻译：要解决的问题：通过在锅炉储存时间循环蒸发部件如炉的保留水来减少锅炉的顶部底部温度差。解决方案：在锅炉的顶部底部降温装置中，设置连接锅炉蒸发器2的出口和过热器喷射路径8的炉循环路径9，在炉循环路径9中设置小容积泵10 锅炉炉渣的保留水由锅炉10在锅炉储存时间循环。在锅炉的顶部底部降温装置中，设置泵的旁通路径11，以便在锅炉的正常操作期间打开泵旁通路径11的阀14来控制过热度。此外，提供了连接锅炉蒸发器的出口和过热器喷射路径的炉循环路径，将旁通路径设置到向锅炉的炉入口的下流管，以将泵安装在旁路路径上，以及在锅炉储存时间，锅炉炉的保留水由泵循环。

3. 发明专利

JPH08128602A ONCE-THROUGH BOILER 失效
公开(公告)号：JPH08128602A
公开(公告)日：1996-05-21
申请号：JP26711394
申请日：1994-10-31
申请人： BABCOCK HITACHI KK
发明人： YAMAZAKI KAZUHIKO , FUKUMOTO FUMIO , ISHITOKU HIDEAKI , FURUKAWA ATSUSHI
IPC分类号： F22B37/10
摘要： PURPOSE: To provide a once-through boiler, in which a thermal stress is reduced, by reducing a temperature difference between water walls of respective boilers, which is generated upon starting the boiler. CONSTITUTION: In a once-through boiler, comparatively low temperature fluid is supplied into the boiler, in which high-temperature fluid is retained, by the water pouring operation upon starting such as hot start and the like and, therefore, the low temperature fluid flows along the order of a fluid route and, therefore, a temperature difference due to the time difference of temperature changes is generated between water wall panels having different fluid routes whereby a thermal stress is generated. Accordingly, a temperature difference between two water wall panels (5 furnace wall 1 and a second sub-side-wall 15), having a large temperature difference and different fluid routes, can be mitigated by installing a water wall panel (a first sub-side-wall 2) consisting of a fluid route for fluid having an intermediate temperature of the fluid temperature in these water wall panels, between two water wall panels (a furnace wall 1 and a second sub-side-wall 15), having different fluid routes and whose temperature difference is large.

4. 发明专利

JP2002243104A INTERNAL EQUIPMENT OF DRUM 失效
公开(公告)号：JP2002243104A
公开(公告)日：2002-08-28
申请号：JP2001040272
申请日：2001-02-16
申请人： BABCOCK HITACHI KK
发明人： OKADA TAKAHIRO , FUKUMOTO FUMIO , HOSOI HIROAKI , FUKUDA KENICHI , ONO KAZUNORI
IPC分类号： F22B37/22 , F22B37/26
摘要： PROBLEM TO BE SOLVED: To restrain the generation of eddy and prevent the rolling of gas phase into a downcast pipe even when the flow rate of retained water in a drum into the downcast pipe is big or the level of water in the drum is lowered to the degree of upper end of an eddy preventing plate. SOLUTION: An internal equipment for the drum is provided in the drum 1 having a hemispherical end with a flat plate of integrated structure by a method wherein a semicircular flat plate 8 parallel to the surface of water in the drum is installed above the inlet port of the downcast pipe 3 connected to the lower part of the hemispherical part, while rectangular flat plates are provided on the semicircular flat plate toward the central part of the drum. Further, an eddy cutting vertical plate 9 is provided on the semicircular flat plate at the upper side and/or lower side of the same. The outlet port of a feed water device for the drum is arranged at the lower side than the level of the semicircular flat plate.

5. 发明专利

JP2000039291A OPERATING METHOD OF BOILER 失效
公开(公告)号：JP2000039291A
公开(公告)日：2000-02-08
申请号：JP20521898
申请日：1998-07-21
申请人： BABCOCK HITACHI KK
发明人： MORITA SHIGEKI , FUKUMOTO FUMIO , SAKAI KAZUTO , MATSUDA JUNICHIRO
IPC分类号： F22B37/10 , F28F13/00
摘要： PROBLEM TO BE SOLVED: To regulate the heat transfer characteristics only at an updated section selectively within a short period such as a test operation period, by admixing an inorganic compound having a freezing point corresponding to gas temperature to fuel or combustion air system as an additive after a heating tube group or the heating tube wall is updated. SOLUTION: In a boiler 20 burning fossil fuel, an arbitrary aged heating tube group or the heating tube wall is updated. Subsequently, an inorganic compound having a freezing point corresponding to the temperature of gas passing through the updated section is admixed to fuel, combustion air system or recirculated exhaust gas in a furnace 1 as an additive in the form of powder or liquid mixed with powder and particles. Heat transfer characteristics at the updated section are regulated by contaminating the surface of the updated clean heating tube during test operation period of several hours or days. Since the range is selected and contamination is accelerated only at the updated section, recovery of plant efficiency is accelerated resulting in the enhancement of performance and efficiency.

6. 发明专利

JP2002276903A EXHAUST GAS RECIRCULATING DEVICE AND EXHAUST GAS RECIRCULATING METHOD 失效
公开(公告)号：JP2002276903A
公开(公告)日：2002-09-25
申请号：JP2001072530
申请日：2001-03-14
申请人： BABCOCK HITACHI KK
发明人： MORITA SHIGEKI , KODA FUMIO , MIMURA TETSUO , FUKUMOTO FUMIO , SAKAI KAZUTO , MATSUDA JUNICHIRO
IPC分类号： F23C99/00 , F22B31/00 , F22B35/00 , F23C11/00
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas recirculating method for a boiler capable of effectively controlling temperature without exercising any influence on a flame at a low load zone while suppressing the increase of NOX. SOLUTION: Recirculation exhaust gas through an outlet 5 of a furnace 1 is heat-exchanged with air by a multi-cyclone type heat exchanger 30 and branched into branch exhaust gas recirculation passages 111 and 112 via a recirculation fan 31 and one is charged from a lower stage port 3 and the other is charged from a hopper part 6 into the furnace 1. Heat-exchanged air is branched into branch air passages 211 and 212, the one is mixed in the exhaust gas through the branch exhaust gas recirculation passage 111 and the other mixed in the exhaust gas through the branch exhaust gas recirculation passage 112. By increasing an amount of the exhaust gas charged through a lower stage port 3 and decreasing an amount of air at the low load zone of the boiler, effective control of temperature can be effected without exercising any influence on flame and without increasing an NOX generating amount.

7. 发明专利

JPH1054501A EXHAUST GAS HEAT RECOVERY DEVICE AND METHOD FOR OPERATING THE SAME 失效
公开(公告)号：JPH1054501A
公开(公告)日：1998-02-24
申请号：JP20963096
申请日：1996-08-08
申请人： BABCOCK HITACHI KK
发明人： FUKUMOTO FUMIO , MARUISHI KAZUYUKI , MIYAKE SHOSUKE
IPC分类号： F22B1/00 , F22D1/28
摘要： PROBLEM TO BE SOLVED: To simply prevent low temperature corrosion of a heat transfer tube of an exhaust gas heat exchange device, during the time including the start-up time of a plant, by providing a high temperature circulation system for circulat ing high temperature feed water between a deaerator and the heat exchange device and keeping fluid temperatures in the heat transfer tube of the heat exchange device at a temperature equal to acid dew point or higher when the temperature of exhaust gas is low. SOLUTION: A start-up heat exchange device feed water line 8 being a high temperature circulation line, a high temperature circulation pump 9, and a heat exchange device feed water bypass line 10 are added to a conventional heat exchange system. That is, the line 8, which branches off from a high temperature feed water line for feeding water from a deaerator 5 to a boiler to feed water to an exhaust gas heat exchange device 1, and the pump 9 are provided. At the start-up of a boiler plant, since the fluid temperature on the side of a low pressure feed water heater 4 is low, e.g. about 40 deg.C, a high temperature fluid of 100 deg.C or higher at the exit of the deaerator 5 is fed to the device 1 through the line 8 and pump 9.

8. 发明专利

JPS57184801A RECOVERING BOILER FOR WASTE HEAT FROM TURBINE 失效
公开(公告)号：JPS57184801A
公开(公告)日：1982-11-13
申请号：JP6768881
申请日：1981-05-07
申请人： BABCOCK HITACHI KK
发明人： FUKUMOTO FUMIO , MATSUMOTO TERUAKI
IPC分类号： F22B1/18

9. 发明专利

JP2001241640A NOZZLE LANCE FOR WATER JET CLEANING AND METHOD FOR CLEANING HEATING TUBE USING THE NOZZLE LANCE 失效
公开(公告)号：JP2001241640A
公开(公告)日：2001-09-07
申请号：JP2000057238
申请日：2000-03-02
申请人： BABCOCK HITACHI KK
发明人： SATO KAZUNORI , MATSUMOTO TERUAKI , HAMADA IKUHISA , FUKUMOTO FUMIO , AKIMOTO SHOHEI , FURUKAWA ATSUSHI , ICHIKAWA HIROAKI , YAMAUCHI HIDENORI , KAWASHIMA HIROKI , MIZOGUCHI TADAAKI
IPC分类号： B08B9/023 , B08B3/02 , F22B37/48 , F22B37/56 , F23J3/00 , F28G9/00
摘要： PROBLEM TO BE SOLVED: To effectively remove attachment on the surfaces of fins in a heating tube having fins, as well as to remove deposit between the fins and attachment at the bases of the fins. SOLUTION: A nozzle lance for water jet cleaning comprises a tube-like lance 14 which allows high pressure water 6 to flow therein and nozzle tips 15 for injecting water jet, which are provided at the lance, and performs cleaning by blowing water jet 17 to a heating tube bank. The lance 14 consists of a narrow and long lance which can be inserted into the gaps in the heating tube bank. A plurality of nozzle chips 15 are mounted on the side wall of a lance. Two nozzle chips are provided at positions, each of which are distanced from the other by 180 degrees with respect to the circumferential direction, and the water jets 17 are injected from the nozzle tips, respectively, in the opposite horizontal directions. The nozzle tips are disposed being deviated from each other with respect to the axial direction.

10. 发明专利

JP2001241605A JOINTING STRUCTURE OF BOILER FURNACE WALL 失效
公开(公告)号：JP2001241605A
公开(公告)日：2001-09-07
申请号：JP2000056343
申请日：2000-03-01
申请人： BABCOCK HITACHI KK
发明人： KURUMACHI TAKAHARU , FUKUMOTO FUMIO
IPC分类号： F22B21/40 , F22B37/10 , F22B37/20
摘要： PROBLEM TO BE SOLVED: To provide a jointing structure of a boiler furnace wall improved in workability, in which damage such as cracks is not generated due to thermal stress in the jointing part, when an expansion/contraction difference is produced due to difference in the thermal expansion rate and temperature difference between the forward and rear furnace walls and the right and left furnace walls of the boiler drum. SOLUTION: A membrane bar 22 formed of a steel sheet connecting a furnace wall pipe 21 in the right end of a rear wall inclination 2a and a second furnace wall pipe 21 adjoining thereto. One end of a lateral side of a jointing member 23 of a long steel sheet having a thick end of a nearly W-shaped cross-section in the deflection part is welded to the membrane bar 22, and the other end is welded to each insert sheet 43, which partially fills the space between the external edge of each furnace pipe 41 of a right furnace-wall 4 and the jointing member 23. Thus a rear wall furnace 2 and the right furnace wall 4 are jointed to each other.

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