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91. 发明专利

JPH038410A CONTROLLER FOR WET TYPE WASTE GAS DESULFURIZING DEVICE 失效
公开(公告)号：JPH038410A
公开(公告)日：1991-01-16
申请号：JP14226389
申请日：1989-06-06
申请人： BABCOCK HITACHI KK
发明人： KATSUBE TOSHIO , NOZAWA SHIGERU , NAKAMOTO TAKANORI , EGASHIRA MICHIO , MASUTOMI HIROSHI , KAMOGAWA HIROMI
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77
摘要： PURPOSE:To stop unnecessary pumps without impairing the performance of the wet type exhaust gas desulfurizing device for boilers for intermediate load operation with which the frequencies of start and stop are many by allowing the number of the circulating pumps to be controlled according to the operating conditions of the plant even with the above-mentioned wet type waste gas desulfurizing device. CONSTITUTION:Absorption liquids are supplied by plural units of the circulating pumps to an absorption column which absorbs away the SOX in waste gases. The number of the pumps to be operated is controlled according to the load. Operation history signals 14 of the circulating pumps, start limit condition signals 15 of the circulating pumps, intended load signals 16 of the absorption column, and SOX signals 17 in the waste gases are inputted and outputted in a data input/output section 18 in the controller. Desulfurizing performance is computed from the signals 16, 17 in a section 19 for computing the desulfurizing performance. Further, the required number of the circulating pumps to be operated is computed in accordance with the signals 16, 17 in a section 20 for computing the required flow rate of the circulating liquid. The pumps are selected from the computed number of the pumps to be operated and the signals 14, 15 in a section 21 for deciding the okay or not of pump stop. The start and stop of the pumps are executed by a control section 22.

92. 发明专利

JPH01236923A APPARATUS FOR WET DESULFURIZATION OF EXHAUST GAS 失效
公开(公告)号：JPH01236923A
公开(公告)日：1989-09-21
申请号：JP6456588
申请日：1988-03-17
申请人： BABCOCK HITACHI KK
发明人： KATSUBE TOSHIO , NAKAMOTO TAKANORI
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77
摘要： PURPOSE:To keep the concn. of Cl const. in discharged water of desulfurization to be processed by a wastewater treating apparatus, by estimating the concn. of Cl in the discharged water on real time from the conditions of a boiler and a desulfurizing apparatus and adjusting the supplying amount of the discharged water of desulfurization according to the concn. of Cl. CONSTITUTION:The total flow amount of Cl is calculated by a multiplier and an adder by sending the signals from a detector 50 of the flow amount of a discharge gas flowing before a desulfuring apparatus 5, a detector 51 of Cl concn. in the discharged gas, a detector 52 of water-supplying amount of a water supplying line 19 to a thickener over-flow water tank 18, and a detector 53 of Cl concn. in the supplied water. Meanwhile, the total discharged water amount is calculated from the signals from a detector 56 of the flow amount of an adsorbing agent slurry and a detector 55 of the discharged water flow amount. From the both, Cl concn. in the discharged water is calculated, compared with the set value, and by the resulting deviation signal, a valve 54 to adjust the discharged water flow amount is controlled so as to control the flow amount of the discharged water of desulfurization into a wastewater treating apparatus.

93. 发明专利

JPS6182826A Wet stack gas desulfurizer 失效
标题翻译：湿堆积气体脱硫剂
公开(公告)号：JPS6182826A
公开(公告)日：1986-04-26
申请号：JP20256084
申请日：1984-09-27
申请人： Babcock Hitachi Kk
发明人： KATSUBE TOSHIO
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77
摘要： PURPOSE: To accelerate the dissolution velocity of limestone without increasing the amt. of circulating liq. in an absorption tower and without increasing the excess rate of the limestone and to restore the pH of a liq. absorbent by providing the second liq. absorbent storage vessel which is connected to a liq. absorbent storage vessel in an absorption tower and whose liq. surface is brought into contact with air.
CONSTITUTION: A partition plate 30 having the communicating part of a liq. absorbent at the lower part is provided to a liq. absorbent storage vessel 20 of an absorption tower 4, and the second liq. absorbent storage vessel 21 whose gaseous-phase part is isolated from waste gas is furnished. The liq. absorbent after absorbing SO
2 in waste gas is firstly stored in the first liq. absorbent storage vessel 20, and then sent into the storage vessel 21 from the communicating part at the lower part of the parti tion 30. The gaseous phase at the upper part of the second storage vessel 21 is isolated from CO
2 -rich waste gas, and brought into contact with the atmosphere having low CO
2 content. Accordingly, decarbonation reaction proceeds, and the dissolution velocity of limestone is accelerated. The liq. absorbent whose pH is restored in the second storage vessel 21 is supplied to the absorption tower 4 by a pump 11. The gaseous CO
2 evolved in the storage vessel 21 is discharged into the absorption tower 4 by a pipeline 24.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：加快石灰石的溶解速度，不增加灰分。的循环流程在吸收塔中，并且不增加石灰石的过剩率并恢复液体的pH。通过提供第二液体吸收剂。连接到液体的吸收性储存容器。吸收塔中的吸收性储存容器。表面与空气接触。构成：具有连接部分的隔板30。吸收剂在下部被提供到液体。吸收塔4的吸收性储存容器20，以及第二液体。提供其气相部分与废气隔离的吸收性储存容器21。 liq。吸收废气中的二氧化硫后的吸收剂首先储存在第一液体中。吸收性储存容器20，然后从第二部分30的下部的连通部分送入储存容器21.第二储存容器21上部的气相与富含CO 2的废气分离，与具有低CO 2含量的气氛接触。因此，脱碳反应进行，石灰石的溶解速度加快。 liq。在第二储存容器21中恢复pH的吸收剂通过泵11供应到吸收塔4.在储存容器21中放出的气态CO 2通过管线24排出到吸收塔4中。

94. 发明专利

JPS59169523A Control of wet waste gas desulfurization apparatus 失效
标题翻译：湿废气脱硫装置的控制
公开(公告)号：JPS59169523A
公开(公告)日：1984-09-25
申请号：JP4141683
申请日：1983-03-15
申请人： Babcock Hitachi Kk
发明人： NARITA TSUNEO , NISHIMURA TSUCHI , KATSUBE TOSHIO , ASANO HIROMITSU , OBATA KOUZOU , SOGA MITSUSACHI
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77 , C01F11/46
摘要： PURPOSE: To attain to reduce the power cost of an air compressor, by controlling the amount and pressure of air supplied to an oxidizing tower corresponding to the amount of calcium sulfite generated in an exhaust gas absorbing tower supplied to the oxidizing tower.
CONSTITUTION: In a wet waste gas desulfurization by absorbing SO
x in exhaust gas with a limestone slurry is supplied to an oxidizing tower 15 through an oxidizing tower supply tank 13 to be oxidized to calcium sulfate with air sent into said tower 15 from an oxidizing air compressor 21 while the reaction mixture is withdrawn to a gypsum thickener 16 to recover gypsum, the air amount sent to the oxidizing tower 15 is controlled corresponding to the amount of calcium sulfite supplied to said oxidizing tower 15 by a flow meter 105 and a control valve 111 or air pressure is controlled by a pressure controller 107 and a control valve 110. In parallel to this operation, a suction valve 113 and an air release valve 112 are opened and closed by the pressure switch 106 provided to an air tank 22 for storing oxidizing air to subject the air compressor 21 to repeated load and unload operations and the power reduction during low load is performed.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了降低空气压缩机的动力成本，通过控制供给氧化塔的空气的量和压力，与供给氧化塔的废气吸收塔中产生的亚硫酸钙的量相对应。构成：在通过用石灰石浆料吸收废气中的SO x的湿废气中，通过氧化塔供应罐13将氧化塔15供给到氧化塔15中，以从氧化空气压缩机送入塔15的空气被氧化成硫酸钙 21，同时将反应混合物取出到石膏增稠剂16中以回收石膏，送入氧化塔15的空气量通过流量计105和控制阀111对应于供给到氧化塔15的亚硫酸钙的量来控制或气压由压力控制器107和控制阀110控制。与此同时，吸入阀113和排气阀112被设置在用于储存氧化的空气罐22的压力开关106打开和关闭空气对空气压缩机21进行重复的负载和卸载操作，并且执行低负载期间的功率降低。

95. 发明专利

JP2008030017A REMOVAL APPARATUS OF TRACE HARMFUL SUBSTANCE IN EXHAUST GAS AND ITS OPERATION METHOD 审中-公开
公开(公告)号：JP2008030017A
公开(公告)日：2008-02-14
申请号：JP2006285761
申请日：2006-10-20
申请人： BABCOCK HITACHI KK
发明人： NAGAI YOSHINORI , KATSUBE TOSHIO , MORITA ISATO , YOSHIKAWA HIROBUMI , KATO YASUYOSHI
IPC分类号： B01D53/86 , B01D53/50 , B01D53/64 , B01D53/77 , B01D53/81 , B01D53/94
摘要： PROBLEM TO BE SOLVED: To provide a long-term stable and highly reliable removal apparatus of trace harmful substances in exhaust gas, and its operation method. SOLUTION: The removal apparatus of the trace harmful substances in the exhaust gas is constituted by arranging, in a flow channel of the exhaust gas discharged from a combustion facility in order from the upstream side, a denitration device equipped with a denitration catalyst layer having a function of removing nitrogen oxide in the exhaust gas to oxidize metallic mercury, an air preheater for heat-exchanging air for combustion of the combustion facility to the exhaust gas, a dust removal device having a bag filter containing oxidation catalysts for metallic mercury and a desulfurization device for removing sulfur oxide in the exhaust gas. The bag filter may be disposed in front of the desulfurization device. COPYRIGHT: (C)2008,JPO&INPIT

96. 发明专利

JP2003075093A Shot cleaning apparatus and its operation method 审中-公开
标题翻译： SHOT CLEANING装置及其操作方法
公开(公告)号：JP2003075093A
公开(公告)日：2003-03-12
申请号：JP2001269434
申请日：2001-09-05
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： MURAMOTO KOJI , SAITO TAKAYUKI , MIYATAKA RYOICHI , KATSUBE TOSHIO , OKAWA TAKESHI , TAWARA HISATO
IPC分类号： F28G1/12 , F28G15/04
摘要： PROBLEM TO BE SOLVED: To provide a shot cleaning apparatus and its operation method, in which a flow rate of shots of steel balls is easily variable in response to load change or increase of pressure loss in a GGH (gas-gas heater) without upsizing the apparatus.
SOLUTION: Dust adhered to heat transfer pipes 5 is removed by scattering shots from a feeder 1 on the pipes 5 which performs heat exchange between the inner fluid and dust-containing gas. Shot circulation in the apparatus is controlled by varying the shot-transfer speed of the feeder 1 by employing a controllable motor, e.g. provided with an inverter. The shots are spontaneously dropped all the time as required from a bypass chute 11 provided in the feeder 1. Further, a specified amount of shots are added all the time from a feeder 10 of a shot tank 9 in the outside of the system to the shot circulation system. In this case, operation is kept in a constant speed (maximum capacity) in the shot-transfer system including a shot-transferring bucket-conveyor 8, a shot distributor 4, a dust separator 6 and a shot discharger 7, etc.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种喷丸清理装置及其操作方法，其中钢球的喷射流量响应于GGH（气体加热器）中的负载变化或压力损失的增加而容易变化，而不增大该装置。解决方案：通过在进行内部流体和含尘气体之间的热交换的管道5上的进料器1的散射射流来消除附着在传热管5上的灰尘。通过采用可控制的电动机，例如通过改变进料器1的射出传送速度来控制装置中的喷射循环。配有变频器。根据需要，从投放机1中设置的旁路槽11自发地投射投射。此外，从系统外部的喷射槽9的进料器10一直加入规定量的喷射量射击循环系统在这种情况下，在包括射出转移斗式输送机8，射击分配器4，灰尘分离器6和射出放出器7等的射出传送系统中，操作保持恒定的速度（最大容量）。

97. 发明专利

JP2002177732A EXHAUST GAS TREATING APPARATUS 失效
公开(公告)号：JP2002177732A
公开(公告)日：2002-06-25
申请号：JP2000373440
申请日：2000-12-07
申请人： BABCOCK HITACHI KK
发明人： MURAMOTO KOJI , SAITO TAKAYUKI , KATSUBE TOSHIO
IPC分类号： F23L17/02 , B01D45/08 , B01D51/00 , B01D53/50 , B01D53/77 , F22B37/00 , F22B37/10 , F23J15/00 , F23J15/06 , F23J15/08
摘要： PROBLEM TO BE SOLVED: To efficiently remove mist flown from a wet type exhaust gas desulfurizer at front flow part of a GGH reheater and/or SGH and to prevent corrosion of a heat transfer tube group having fins, provided at the rear flow side of these devices. SOLUTION: As the structure of heat transfer tubes 12-1 of GGH bare tube group and/or heat transfer tube group of SGH 19, the constitution of the bare tubes (heat transfer tubes) 12-1 is built by combining a zigzag arrangement and a parallel arrangement against the gas flow direction, and at least four stages of the heat transfer tubes are arranged in the flow direction of the exhaust gas.

98. 发明专利

JP2001293330A GAS-LIQUID CONTACT METHOD AND DEVICE THEREFOR 失效
公开(公告)号：JP2001293330A
公开(公告)日：2001-10-23
申请号：JP2000110180
申请日：2000-04-12
申请人： BABCOCK HITACHI KK
发明人： MURAMOTO KOJI , KATSUBE TOSHIO , KOMURO TAKEO , NOZAWA SHIGERU , MIYASHIRO AKIRA , KOYAMA SHUNTARO
IPC分类号： F23J15/00 , B01D53/18 , B01D53/34 , B01D53/50 , B01D53/77 , B01J10/00
摘要： PROBLEM TO BE SOLVED: To provide a method and device for gas-liquid contact and a method and device for wet flue-gas desulfurization provided with the device for gas- liquid contact which can cope with a variation in load and can reduce the power of an absorption-liquid circulating pump, without lowering desufurization performances and which can atomize the absorption liquid, thereby saving power consumption. SOLUTION: An inclined plate 10 is installed in an absorption tower 100 to restrict the flow of gas, thereby generating a contraction, and further a partition plate 30 having at its lower end a truncated chevron shaped inclined plate 20 is installed at the center of the tower 100 to promote the atomization of liquid due to the entrainment thereof. Since the power for atomization is not required as compared to a spray type absorption tower, the power of an absorption liquid pump 2 can be greatly reduced. By providing a guide at the lower end of the plate 10, atomization of the liquid flowing down from the plate 10 can be accelerated and hence higher desulfurization performance can be achieved.

99. 发明专利

JP2000161647A WASTE GAS PROCESSING DEVICE, AND GAS RE-HEATER 失效
公开(公告)号：JP2000161647A
公开(公告)日：2000-06-16
申请号：JP34147198
申请日：1998-12-01
申请人： BABCOCK HITACHI KK
发明人： SHIMAZU HIROMICHI , KATSUBE TOSHIO , SAITO TAKAYUKI
IPC分类号： B01D53/50 , B01D53/18 , B01D53/77 , F23J15/00
摘要： PROBLEM TO BE SOLVED: To improve the mist evaporation efficiency at a forward stage heat transfer pipe part by improving the collision efficiency of the mist flying from a wet type desulphurizing device at the forward stage heat transfer pipe of a gas-gas heater of bare pipe specification, and to prevent dust adhesion to middle and rear stage heat transfer pipes of the gas-gas heater of fin-tube specification. SOLUTION: In a waste gas processing device, heat transfer pipes of a forward stage heat transfer pipe 12-1 of a gas-gas heater 8 of bare pipe specification are arranged in a highly dense staggered manner, at least three stages of heat transfer pipes are installed in the gas-gas heater 8, the sectional area of waste gas passage is reduced than the conventional value and the gas flow speed between heat transfer pipes at the forward stage heat transfer pipe 12-1 part of the gas-gas heater 8 is increased. Mist scattering on the middle and rear stage heat transfer pipes 12-2, 12-3 of the fin tube specification can be prevented thereby.

100. 发明专利

JPH11104446A WET EXHAUST GAS DESULFURIZATION APPARATUS 失效
公开(公告)号：JPH11104446A
公开(公告)日：1999-04-20
申请号：JP26990997
申请日：1997-10-02
申请人： BABCOCK HITACHI KK
发明人： SHIGEMI ATSUYUKI , KATSUBE TOSHIO , NOSAKA HIROYUKI
IPC分类号： B01D53/50 , B01D53/77
摘要： PROBLEM TO BE SOLVED: To effectively cool an exhaust gas desulfurization apparatus at hot bunking of a boiler. SOLUTION: High temp. exhaust gas flowing into an absorbing tower at hot bunking can be cooled by adjusting amt. of spraying water which does not exceed the capacity of a circulation tank 7 and is enough for decreasing temp. of the high temp. exhaust gas of 120-130 deg.C at hot bunking to about 80 deg.C or lower and spraying this adjusted amt. of water to the high temp. exhaust gas introduced into an inlet duct from spray nozzles for hot bunking for spraying cooling water provided in the exhaust gas inlet duct 9 of an absorbing tower 3 during a boiler is temporarily stopped for several hours to about a half day. In addition, emergency spray nozzles 6 can also be provided for spraying cooling water for emergency with the spray nozzles 14 for hot bunking when a desulfurization apparatus is stopped during the boiler is operated.

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