专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2005152746A Exhaust gas dust removing apparatus and its operation method 审中-公开
标题翻译：排气除尘装置及其操作方法
公开(公告)号：JP2005152746A
公开(公告)日：2005-06-16
申请号：JP2003393423
申请日：2003-11-25
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： MORII SEIJI , KAMEI NOBUHIRO , WATANABE KO
IPC分类号： B01D46/42
摘要： PROBLEM TO BE SOLVED: To provide a continuously operable exhaust gas dust removing apparatus for collecting lumpy dust in an exhaust gas, and its operation method.
SOLUTION: In this exhaust gas dust removing apparatus, partition plates 5 are provided so as to divide an almost horizontal duct and the almost vertical duct continued to the almost horizontal duct into a plurality of ducts along a gas flow direction, dampers 2 are provided to the almost horizontal duct parts in the respective ducts 6-9 partitioned by the partition plates 5, a dust sieve means 1 is provided to the almost vertical duct parts, the dampers 2 are controlled so as to be closed when the difference pressure in the exhaust gas flow channel between the upstream and downstream sides of the dust sieve means 1 becomes a set value or above but closed when the differential pressure is below the set value and dust recovering hoppers 3 are provided to the lower end parts of the almost vertical duct parts.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于收集废气中的块状灰尘的可连续操作的废气除尘装置及其操作方法。解决方案：在这种排气除尘装置中，分隔板5设置成将几乎水平的管道和几乎垂直的管道沿大致水平的管道分成沿气体流动方向的多个管道，阻尼器2 设置在由分隔板5分隔的各个管道6-9中的几乎水平的管道部分上，在几乎垂直的管道部分上设置有灰尘筛装置1，当阻尼器2的差压在尘埃筛装置1的上游侧和下游侧之间的排气流动通道变为设定值以上，但当压差低于设定值时关闭，并且将灰尘回收料斗3设置在几乎垂直管道部件。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JPH11333283A CATALYST REACTOR 失效
公开(公告)号：JPH11333283A
公开(公告)日：1999-12-07
申请号：JP14449798
申请日：1998-05-26
申请人： BABCOCK HITACHI KK
发明人： HORIUCHI TERUHIRO , WATANABE KO , MORI YOSHIMICHI
IPC分类号： B01D53/94 , B01J8/02
摘要： PROBLEM TO BE SOLVED: To carry in and out catalysts easily and utilize effectively a right upper section space. SOLUTION: A catalyst reactor is provided with a reaction container 2 set on an exhaust gas flue, a catalyst carrying inlet 9 formed on the reaction container and a catalyst carrying-in means for carrying catalysts into the reaction container through the catalyst carrying inlet, and exhaust gas flowed into the reaction container is treated by the catalyst action. In this case, the catalyst carrying inlet 9 is formed along a ceiling casing 8 on the side wall face of the reaction container 2, and a monorail 4 is so provided along the inner wall face of the ceiling casing 8 as to protrude its one end from the catalyst carrying inlet 9 formed on the side wall face, and an upper space in the reaction container 2 is formed into a catalyst carrying-in space 10 by installing a chain block 5 capable of traveling on the monorail 4.

3. 发明专利

JPH08281074A DENITRIFICATION EQUIPMENT USING UREA 失效
公开(公告)号：JPH08281074A
公开(公告)日：1996-10-29
申请号：JP9347895
申请日：1995-04-19
申请人： BABCOCK HITACHI KK
发明人： NAGAI YOSHINORI , WATANABE KO , KATO YASUYOSHI , IMADA NAOMI
IPC分类号： B01D53/34 , B01D53/56 , B01D53/74 , B01D53/86 , B01D53/94 , G05D21/00
摘要： PURPOSE: To make it possible to take out the required amt. of ammonia with good responsiveness in correspondence to a fluctuation in NOx concn. without allowing scale to be formed. CONSTITUTION: The waste gases from a waste gas generating source 20 are subjected to denitrification in a denitrification reactor 23 and are thereafter discharged from a chimney 22 via a waste heat recovering boiler 21. The denitrification in the denitrification reactor 23 is effected by injecting NH3 from an evaporator 29 from a nozzle 25 into the denitrification reactor 23. The denitrification reactor 23 is provided with a NOx monitor 37 on the downstream side thereof to monitor the increase or decrease of the NOx quantity in the waste gases. The rate at which the aq. urea soln. 27 in a tank 26 is supplied to the evaporator 29 is increased and the amt. of the NH3 to be injected into the denitrification reactor 23 is increased when the NOx quantity increases. The rate at which the aq. urea soln. 27 is supplied to the evaporator 29 is so controlled as to be decreased and the amt. of the NH3 to be injected into the denitrification reactor 23 to be decreased when the NOx quantity decreases.

4. 发明专利

JPH07163836A METHOD AND DEVICE FOR CONTROLLING CONCENTRATION OF NITROGEN OXIDE AND FOR DENITRATION 失效
公开(公告)号：JPH07163836A
公开(公告)日：1995-06-27
申请号：JP31351893
申请日：1993-12-14
申请人： BABCOCK HITACHI KK
发明人： WATANABE KO , INATSUNE YOSHIROU , HIRAGA HISANORI , KORENAGA NORINAO
IPC分类号： B01D53/34 , B01D53/56 , B01D53/74 , B01D53/86 , B01D53/94
摘要： PURPOSE:To prevent a frequently occurring abnormal alarm of NOx concentration and to control NOx concentration of mean value per unit time after denitration reaction of gas to be treated at the value not exceeding the regulatory value. CONSTITUTION:An NOx concentration signal inputted to an alarm 7 corresponds to the transit means NOx concentration D of (y) minute (y

5. 发明专利

JPH01310723A APPARATUS FOR DENITRATION TREATMENT 失效
公开(公告)号：JPH01310723A
公开(公告)日：1989-12-14
申请号：JP13993488
申请日：1988-06-07
申请人： BABCOCK HITACHI KK
发明人： WATANABE KO , ISHIKAWA TOMIHISA , MUKAI MASATO
IPC分类号： B01D53/94
摘要： PURPOSE:To prevent lowering of heat efficiency by arranging a dust collector upstream of a waste heat recovery equipment, which is installed downstream of a denitration equipment, and another dust collector downstream of the waste heat recovery equipment and by returning the ash collected by both dust collectors to a flue gas generating equipment through an ash recycle line. CONSTITUTION:A flue gas produced by a boiler 1 has most of its dust collected by a dust collector 31 after denitrated by a denitration equipment 2, has its sensitive heat recovered by an air heater 3, has the rest of dust further collected perfectly by another dust collector 4 installed downstream of the air heater 3 and is ejected out of a stack 6 after passing through a desulfurization equipment 5. The dust collected by the dust collectors 31 and 4 is sent to the boiler 1 through a dust recycle line 13 and burnt again to increase heat efficiency. Catalyst poisoning is also lowered by collecting the ash at a high temperature to decrease heavy metal components contained in the ash.

6. 发明专利

JPS6219229A CONTROL DEVICE FOR AMOUNT OF AMMONIA TO BE INJECTED 失效
公开(公告)号：JPS6219229A
公开(公告)日：1987-01-28
申请号：JP15510185
申请日：1985-07-16
申请人： BABCOCK HITACHI KK
发明人： WATANABE KO
IPC分类号： B01D53/56 , B01D53/74 , B01D53/86 , F01N3/20 , G05D11/13
摘要： PURPOSE:To correspond in a period of the quick change of load by adding a molar ratio signal and a deviation signal of leak of NH3 from a detection signal of gas temp., a detection signal of NOX in an inlet, a detection signal of the flow rate of gas and a set signal of leak of NH3 and calculating a correcting signal of molar ratio. CONSTITUTION:A molar ratio signal 31 is calculated by inputting a detection signal 23 of gas temp., a detection signal 25 of NOX in an inlet, a detection signal 27 of the flow rate of gas and a set signal 29 of leak of NH3 outputted from an (S-NH3) setter 28 of leak of NH3 to an arithmetic device 30 of molar ratio. On the other hand, the detection signal 25, the molar ratio signal 31 and a detection signal 33 of NOX in an outlet are inputted to a computing element 34 of leak of NH3 and a calculation signal 35 of leak of NH3 is calculated and compared with the set signal 29. Then a deviation signal 37 of leak of NH3 is inputted to an adder 38 and added with the signal 31 and inputted to a multiplier 42 as a correcting signal 41 of molar ratio to calculate a signal 43 of the flow rate of the necessary NH3.

7. 发明专利

JPS6051601B2 失效
公开(公告)号：JPS6051601B2
公开(公告)日：1985-11-14
申请号：JP7325478
申请日：1978-06-19
申请人： BABCOCK HITACHI KK
发明人： WATANABE KO
IPC分类号： B01J8/24 , F23C10/18 , F23C10/28 , F23G5/30 , F23G5/50

8. 发明专利

JPH11221446A METHOD AND APPARATUS FOR DENITRATING EXHAUST GAS 失效
公开(公告)号：JPH11221446A
公开(公告)日：1999-08-17
申请号：JP2553398
申请日：1998-02-06
申请人： BABCOCK HITACHI KK
发明人： INATSUNE YOSHIROU , WATANABE KO
IPC分类号： B01D53/94
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for denitrating exhaust gas having good denitration performance even under the conditions in which severe NOx regulation is required during the actuation of a waste heat recovering boiler, and a method for operating the apparatus. SOLUTION: The time for starting the injection of ammonia during the actuation of a denitration apparatus is set up at a point of time when the temperature of a denitration catalyst layer part reaches the boiling point or the vicinity of the boiling point of the condensed water of exhaust gas. Since the reduction of NOx can be attempted even in a low temperature area without lowering the activity of the denitration catalyst, the discharge of NOx can be controlled during the operation of a plant. Although an exhaust gas temperature at the outlet of the catalyst layer increases behind that at the inlet of the catalyst layer, when the injection of ammonia is started at 140 deg.C of an exhaust gas temperature at the inlet, an exhaust gas temperature at the outlet corresponds to 100 deg.C (the boiling point of the condensed water of exhaust gas), and since the temperature of the entire catalyst layer is at the lowest 100 deg.C when the injection of ammonia is started at this point of time, the discharge of ammonia or NOx into the air can be prevented.

9. 发明专利

JPH09173786A AMMONIA INJECTION DEVICE 失效
公开(公告)号：JPH09173786A
公开(公告)日：1997-07-08
申请号：JP33761595
申请日：1995-12-26
申请人： BABCOCK HITACHI KK
发明人： HORIUCHI TERUHIRO , MORI YOSHIMICHI , WATANABE KO , MUKAI MASATO
IPC分类号： B01D53/56 , B01D53/86 , B01D53/94
摘要： PROBLEM TO BE SOLVED: To solve the problem of unbalanced ammonia injection due to the reduction in injection amount of ammonia when the denitrification load lowers by mixing steam into the aqueous ammonia vapor to compensate the decrement of the aqueous ammonia vapor flow rate and apply the same pressure drop across one of nozzles as that before the decrease in aqueous ammonia vapor flow rate is caused, to each of the nozzles when the injection amount of aqueous ammonia vapor is reduced. SOLUTION: In this device, an aqueous ammonia vapor pipeline 10 is provided with a steam injection means downstream from a flow control valve 9 and steam is introduced to a steam pressure reducing valve 15 through a steam pipeline 14 to reduce the stream pressure to a value higher than the total value ((1)+(2)+(3)) of (1) the pressure drop across one of nozzles 13 at the time of allowing the aqueous ammonia vapor to flow at an intended flow rate, namely, at a flow rate before the reduction in injection amount of the aqueous ammonia vapor is caused, (2) the pressure drop across the aqueous ammonia vapor pipeline 10 and one of nozzle headers 11 and (3) the static pressure of a duct 2. When the amount of Nox produced reduced because of a change in denitrification load and accordingly, the injection amount of the aqueous ammonia vapor is reduced, steam is mixed into the aqueous ammonia vapor to compensate the decrement of the aqueous ammonia vapor flow rate and to maintain the injection velocity of the ammonia vapor at an intended nozzles 13 and further, to uniformly inject the aqueous ammonia vapor into the each of the nozzles 13 and further, to uniformly inject the aqueous ammonia vapor into the duct 2.

10. 发明专利

JPS62191026A DENITRATION EQUIPMENT 失效
公开(公告)号：JPS62191026A
公开(公告)日：1987-08-21
申请号：JP2989586
申请日：1986-02-15
申请人： BABCOCK HITACHI KK
发明人： WATANABE KO , ARAKAWA HARUO
IPC分类号： B01D53/94 , B01D53/86
摘要： PURPOSE:To allow the titled apparatus to withstand vibration, by arranging a box-shaped support member, which is formed of frame members surrounding the outer peripheries of a catalyst block aggregates and beam members connecting said frame members, in an exhaust gas passage and forming said aggregates into an integral structure by the box-shaped support member. CONSTITUTION:A box-shaped support member 33, which is formed of frame members 31-31c surrounding the outer peripheries of catalyst blocks 26a, 26b and beam members 32a, 32b connecting said frame members, is arranged in an exhaust gas passage and supported in an integral structure in such a state that the outer peripheries of the catalyst blocks 26a, 26b are surrounded through stopper members 34. Therefore, the box-shaped support member 33 has the same temp. as the catalyst blocks 26a, 26b and can be supported so as to follow thermal expansion and contraction. As a result, the box-shaped support member can be supported so as to withstand vibration.

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