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31. 发明专利

JPS54110980A HEAT GAS FLOW ADJUSTER 失效
公开(公告)号：JPS54110980A
公开(公告)日：1979-08-30
申请号：JP1760678
申请日：1978-02-20
申请人： BABCOCK HITACHI KK
发明人： OGURA KATSUJI , MUKAI MASATO , MASUTOMI HIROSHI , MORI YOSHIMICHI
IPC分类号： B01D53/94 , B01J8/02 , F01N3/24
摘要： PURPOSE:A perforated plate is located in the heat gas introducing passage in an inclined position to the heat gas flow, the inclined plate having openings through which the heat gas is partially flowed into the gas circulating chamber installed in the opposing position to the gas flow, whereby heat stress produced in the lower supports of the reaction chamber is reduced. CONSTITUTION:High temperature gas flows through the duct 4 into the reactor 1. About 3 to 5% of the high temperature gas passes through the openings 6 of the inclined plate 2, enters into the gas circulating chamber 9, passes through perforations (opening ratio being about 5 to 10%) of the plate 2. Such gas flow adjusts the high temperature gas flow from the duct 4, and the adjusted gas is flowed into the reactive layer 3, then exhausted through the duct 5. The existance of the gas circulating chamber reduces differential thermal expansion between the supports 7, 8 and thermal stresses generated in the supports.

32. 发明专利

JP2004121893A Catalytic reactor 有权
公开(公告)号：JP2004121893A
公开(公告)日：2004-04-22
申请号：JP2002285517
申请日：2002-09-30
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： EGASHIRA MICHIO , MORI YOSHIMICHI
IPC分类号： B01D53/86 , B01J19/24
摘要： PROBLEM TO BE SOLVED: To provide a seal plate whose size can be adjusted easily. SOLUTION: This catalytic reactor is provided with a casing 3 which is a rectangle in section and through which exhaust gas is made to pass, a catalytic unit which is a rectangular parallelpiped and is arranged in a flow passage in the casing 3 and the seal plate 7 for sealing the gap between the side face of the catalytic unit and the inner wall of the casing 3. The plate 7 is formed so that the edge part 7b on the casing 3 side is fixed by a bolt 11a and a nut to a rib plate projecting from the inner wall of the casing 3 into the direction perpendicular to a gas flow and the edge part on the catalytic unit side is abutted on the side face of the catalytic unit. Any of a bolt hole formed on the part 7b and that formed on the rib plate is formed into an oblong hole. The edge part on the catalytic unit side is extended and bent along the side face of the catalytic unit to the gas flow direction. COPYRIGHT: (C)2004,JPO

33. 发明专利

JP2000061267A DENITRIFICATION CATALYST BED ABNORMALITY DETECTING DEVICE AND METHOD THEREFOR 失效
公开(公告)号：JP2000061267A
公开(公告)日：2000-02-29
申请号：JP23546298
申请日：1998-08-21
申请人： BABCOCK HITACHI KK
发明人： MORI YOSHIMICHI , WATANABE KO , HORIUCHI TERUHIRO
IPC分类号： B01D53/86 , B01D53/94 , B01D53/87
摘要： PROBLEM TO BE SOLVED: To contrive the detection of an abnormality of a catalyst bed in its early stage and automation of the abnormality detection in a flue gas denitrification device for denitrifying exhaust gas from a combustion equipment. SOLUTION: A thermometer 7 is installed in a catalyst bed 6 to detect the temperature of the catalyst bed 6 and to output it. After combustion of a combustion device is stopped, based on temperature data from the thermometer 7, a change in temperature of the catalyst bed 6 is differentiated with respect to time, and when the differential continues (+) value for a prescribed time, the catalyst bed 6 is judged abnormal to give the alarm. Temperature is measured by the thermometer 7 at prescribed time intervals, and when a difference in temperature at the fixed time intervals is (+) value, the catalyst bed 6 is judged abnormal to give the alarm.

34. 发明专利

JPH10216475A AMMONIA INJECTION DEVICE 失效
公开(公告)号：JPH10216475A
公开(公告)日：1998-08-18
申请号：JP2370197
申请日：1997-02-06
申请人： BABCOCK HITACHI KK
发明人： WADA TOSHIMICHI , ISHIKAWA TOMIHISA , MURATAKA TATSUO , INATSUNE YOSHIROU , MORI YOSHIMICHI
IPC分类号： B01D53/56 , B01D53/74
摘要： PROBLEM TO BE SOLVED: To accurately adjust and make operation of ammonia injection and scattering easy by arranging plural broad division distribution control valves each for an ammonia supply quantity per section in a waste duct which is divided in plural sections and connecting at least two injection pipes by which ammonia distribution control can be made per valve to the valves downstream thereof. SOLUTION: Broad division distribution valves 2 corresponding to broad divisions in a waste gas duct 6 are each provided with an orifice 3a of a flow meter, and at least two ammonia injection pipes 5 are installed per broad division distribution valve 2. Medium division distribution valve 4 is installed per ammonia injection pipe 5. First, the broad division distribution valves 2 are used to adjust NOx concentration distribution at an outlet of a denitrification device so that the average is equal per zone of the outlet zone. Since the number of the broad division distribution valves 2 is small, adjustment operation of injection scattering of ammonia is relatively easily done. Adjustment of NOx concentration varying in the broad divisions of the duct is made by the medium division distribution valves 4, and as a result, highly accurate and easy operation of injection scattering is done, and denitrificating efficiency and work efficiency are improved.

35. 发明专利

JP2582091B2 失效
公开(公告)号：JP2582091B2
公开(公告)日：1997-02-19
申请号：JP25153887
申请日：1987-10-07
申请人： BABCOCK HITACHI KK
发明人： MORI YOSHIMICHI , EMOTO SHUNJI
IPC分类号： B01D53/94 , B01D53/86

36. 发明专利

JPH0515739A SUPPLY DEVICE AND DECOMPOSING CATALYST FOR REDUCING AGENT FOR DENITRATION 失效
公开(公告)号：JPH0515739A
公开(公告)日：1993-01-26
申请号：JP4317291
申请日：1991-03-08
申请人： PETROLEUM ENERGY CENTER FOUND , IDEMITSU KOSAN CO , BABCOCK HITACHI KK
发明人： UCHIYAMA TSUTOMU , TAKEDA HIROSHI , IMADA NAOMI , ITO MEIJI , NITTA MASAHIRO , MORITA ISATO , MORI YOSHIMICHI , NAGAI YOSHINORI
IPC分类号： B01D53/56 , B01D53/34 , B01D53/86 , B01D53/94 , B01J21/04 , B01J21/06 , B01J21/08 , B01J21/10 , B01J21/12 , B01J23/02 , B01J29/08
摘要： PURPOSE:To provide a supply device of a reducing agent for denitration using a solid reducing agent easy to handle as compared with ammonia and having sufficient denitrating capacity in a limited space. CONSTITUTION:A reducing agent B such as urea composed of a nitrogen- containing compound solid at room temp. under atmospheric pressure and steam- containing heated gas (air) A are brought into contact with a reducing agent decomposing catalyst 8 such as alumina or silica to decompose the reducing agent B to ammonia. This ammonia is injected in the exhaust gas duct of a combustion device from an injection nozzle 7.

37. 发明专利

JPH04358519A GASIFICATION DEVICE FOR DENITRATION REDUCER 失效
公开(公告)号：JPH04358519A
公开(公告)日：1992-12-11
申请号：JP4317391
申请日：1991-03-08
申请人： PETROLEUM ENERGY CENTER FOUND , IDEMITSU KOSAN CO , BABCOCK HITACHI KK
发明人： UCHIYAMA TSUTOMU , TAKEDA HIROSHI , ITO MEIJI , NAGAI YOSHINORI , IMADA NAOMI , MORI YOSHIMICHI , NITTA MASAHIRO , MORITA ISATO , ISHIKAWA TOMIHISA
IPC分类号： B01D53/56 , B01D53/34 , B01D53/86 , B01D53/94
摘要： PURPOSE:To provide a gasification device gasifying a solid reducer in a short time and prevent the formation of scale because of decomposition, polimerization or the like. CONSTITUTION:Reduer powder composed of solid nitrogen containing component is dropped from a piping 15 onto a gasified face 16 of a reduced heating means 3 at the normal temperature and under the normal pressure, gasification is performed at explosively fast speed only at the point of bringing the reducer into contact with the gasified face 16 which shortens the required time for gasification and controls the progress of secondary reaction such as decomposition, polymerization or the like. The reduer, therefore, is not changed in its quality to reduce the danger of formation of scale.

38. 发明专利

JPH0440056B2 失效
公开(公告)号：JPH0440056B2
公开(公告)日：1992-07-01
申请号：JP24005583
申请日：1983-12-20
申请人： BABCOCK HITACHI KK
发明人： MORI YOSHIMICHI , INATSUNE YOSHIRO
IPC分类号： B01D53/56 , F23J15/00

39. 发明专利

JPH0295415A WASTE GAS DENITRATION APPARATUS 失效
公开(公告)号：JPH0295415A
公开(公告)日：1990-04-06
申请号：JP24456288
申请日：1988-09-30
申请人： BABCOCK HITACHI KK
发明人： NAGAMINE SHOGO , EMOTO SHUNJI , MORI YOSHIMICHI , MUKAI MASATO , WADA TOSHIMICHI , MIZOGUCHI JOSHI
IPC分类号： B01D53/94 , B01D53/86
摘要： PURPOSE:To obtain a waste gas denitration apparatus capable of performing stable operation continuously for a long period by constructing the apparatus to have a duct structure capable of separating and removing large sized dust grains contained in waste combustion gas continuously and efficiently and preventing clogging of a denitration catalyst bed and deterioration of the performance of the apparatus. CONSTITUTION:A flue for waste gas at the upstream side of a denitration reactor 3 housing the catalyst bed 8 is constructed to have a duct structure having a rising part which changes the direction of the stream of the waste gas from almost horizontal direction to vertical direction. A sectional area of the horizontal duct 1 is designed to be smaller than a sectional area of the vertical duct 2, thus the flow rate of the waste gas in the vertical duct 2 is lessened so as to facilitate falling of the large sized dust grains contained in the waste gas. Further, a hopper 6 for collecting the large sized dust and a means 7 for discharging the large sized dust collected in the hopper 6 out of the duct system are provided to below the vertical duct 2. Or, a withdrawing duct having a flow rate controlling means for withdrawing the large sized dust is provided to a dust discharging line provided to the down stream side of the denitration reactor 3.

40. 发明专利

JPS6221571B2 失效
公开(公告)号：JPS6221571B2
公开(公告)日：1987-05-13
申请号：JP1760678
申请日：1978-02-20
申请人： BABCOCK HITACHI KK
发明人： OGURA KATSUJI , MUKAI MASATO , MASUTOMI HIROSHI , MORI YOSHIMICHI
IPC分类号： B01D53/94 , B01J8/02 , F01N3/24

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