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11. 发明专利

JP2003113382A METHOD FOR CONTROLLING FLUIDIZED BED GASIFICATION FURNACE FOR GASIFICATION PLANT AND CONTROLLING DEVICE 审中-公开
公开(公告)号：JP2003113382A
公开(公告)日：2003-04-18
申请号：JP2001306369
申请日：2001-10-02
申请人： EBARA CORP
发明人： SATO AKIO , FURUKAWA MASAAKI , SETOGAWA HIKARI , OKU SHUICHI , IMAIZUMI TAKASHI , INAI HISASHI
IPC分类号： F23G5/30 , B01J8/24 , C10J3/00 , C10J3/54 , F23C10/28
摘要： PROBLEM TO BE SOLVED: To provide an automated method for controlling a fluidized bed gasification furnace for a gasification plant capable of easily performing a stable operation even by using waste materials as raw materials, and a device for the same. SOLUTION: This fluidized bed gasification furnace for the gasification plant is equipped with a fluidized bed gasification furnace 4 for thermally cracking the raw materials on the fluidized bed and a high temperature gasification furnace 7 for gas- reforming the thermally cracked gas delivered from the fluidized bed gasification furnace 4 at a high temperature to make a product gas. The flowing amount of the product gas synthesized by the process is regulated in a set flowing amount set previously by installing a raw material feeding amount-controlling process for controlling the amount of the raw materials into the fluidized bed gasification furnace 4 so that the flowing amount of the product gas synthesized by the process becomes the set flowing amount set previously, and a furnace bed temperature-controlling process for setting the furnace bed temperature necessary for the gasification of the raw material by thermal cracking on the fluidized bed and controlling the flowing amount of oxygen blown into the furnace bed fed to the fluidized bed gasification furnace 4 so that the bed temperature becomes the set furnace bed temperature.

12. 发明专利

JPH0658521A BURNED WASTE GAS OXYGEN CONCENTRATION CONTROL METHOD IN BURNING INSTALLATION 失效
公开(公告)号：JPH0658521A
公开(公告)日：1994-03-01
申请号：JP15612893
申请日：1993-06-01
申请人： EBARA CORP
发明人： FURUKAWA MASAAKI
IPC分类号： F23G5/50 , F23N5/00 , F23N5/08
摘要： PURPOSE:To provide a burned waste gas oxygen concentration control method in a burning installation capable of securing proper burning air amount control at all times by further correcting a change in a burned state detection sensor with the elapse of time using an output from a factor sensor. CONSTITUTION:There are provided an oxygen concentration adjusting meter 3 for controlling gas oxygen concentration into a predetermined range by detecting oxygen concentration in waste gas with a waste gas oxygen concentration detection sensor 2, a burned state detection sensor such as a blightness detection sensor 11 for detecting a burned state in a burning furnace 7, and a factor detection sensor 15 for detecting a factor influencing an output from the burned state detection sensor. Waste gas oxygen concentration control means such as a secondary supply damper 4 is basically controlled by an output signal from the burned state detection sensor, and a temporal change in the burned state detection sensor is corrected by a control output from the oxgen concentration adjusting meter 3, and further corrected by an output from the factor sensor 15 through a factor correction calculator 16.

13. 发明专利

JPH0375402A COMBUSTION CONTROL FOR FLUIDIZED BED FURNACE 失效
公开(公告)号：JPH0375402A
公开(公告)日：1991-03-29
申请号：JP21282489
申请日：1989-08-18
申请人： EBARA CORP
发明人： NAITO TAKEYUKI , KURODA YOSHIKI , FURUKAWA MASAAKI , YOSHIDA YUTAKA
IPC分类号： F23N5/00 , F23C10/28 , F23G5/50
摘要： PURPOSE:To eliminate a delay in time and make it possible to reflect exactly the combustion quantity by providing a brightness detection sensor which detects the brightness in a furnace and correcting the outputs of said sensor by the output of an oxygen concentration meter and changing the volume of the air flow by obtaining more exact signal of state of combustion and in accordance to said signal. CONSTITUTION:In the upper section of the free board 12 of a furnace 10 with a fluidized bed a brightness detector 24 is provided which detects the brightness in the furnace, and in an exhaust gas route downstream of a gas cooling chamber 15 an exhaust gas oxygen concentration meter 23 is provided which detects the oxygen concentration in the exhaust gas. An output S1 of the exhaust gas oxygen concentration meter 23 and an output S2 of the brightness detector 24 are inputted to a calculator 25. The brightness detector 24 can detect relative changes in the state of combustion without delay, and the oxygen concentration in the exhaust gas that is detected by the exhaust gas oxygen concentration meter 23 can detect exactly the state of combustion in the furnace even though there is a delay. With this arrangement a calculator 25 corrects the output S2 of the brightness detector 24 by the output S1 of the exhaust gas oxygen concentration meter 23 and can output a signal of state of combustion which reflects more exact state of combustion as an output S3 to calculators 26, 27, and 28 respectively.

14. 发明专利

JPS63196213A MOVING TYPE HYDROPONIC APPARATUS 失效
公开(公告)号：JPS63196213A
公开(公告)日：1988-08-15
申请号：JP2802887
申请日：1987-02-12
申请人： EBARA CORP , KYOWA KK
发明人： FURUKAWA MASAAKI , OTSUKA HIDEMITSU , SEKIMOTO KATSUHIRO , OKUNO HISASHI , INOUE SHUJI , UEDA MASATSUGU
IPC分类号： A01G31/00 , A01G31/04

15. 发明专利

JPS62272923A HYDROPONIC CULTURE APPARATUS USING CULTURE CONTAINER DUE TO POROUS BODY 失效
公开(公告)号：JPS62272923A
公开(公告)日：1987-11-27
申请号：JP11618386
申请日：1986-05-22
申请人： EBARA CORP , KYOWA KK
发明人： OTSUKA HIDEMITSU , FURUKAWA MASAAKI
IPC分类号： A01G31/00

16. 发明专利

JPH0791635A CONTROL OF COMBUSTION IN FLUIDIZED-BED INCINERATOR 失效
公开(公告)号：JPH0791635A
公开(公告)日：1995-04-04
申请号：JP25898293
申请日：1993-09-24
申请人： EBARA CORP
发明人： YOSHIDA YUTAKA , OTSUKI EIICHI , FURUKAWA MASAAKI , OCHI YUJI
IPC分类号： F23N1/02 , F23G5/50 , F23K3/16
摘要： PURPOSE:To provide a method for controlling the combustion where by the emission of unburnt combustibles, such as CO, which when the charge falls sharply in its fluctuation tend to escape from the incinerator can be reduced and the combustion therein can be accelerated. CONSTITUTION:When urban waste, industrial waste, etc., is burned in a fluidized-bed incinerator 1, the fluctuation 6 in the amount of such waste matter with which the incinerator is charged is detected and on the basis of the detected data the number of revolutions of the charge feeder 3. amount of forced draft 9, and amount of secondary air 11 are controlled in a manner of keeping the combustion in a stabilized condition. In this control of the combustion in a fluidized-bed incinerator it is desirable, for the detection of the variation of the charge, to use one or more data selected from among the differential value, secondary differential value, and amount of fluctuation of the current applied to the scraper of the charge feeder.

17. 发明专利

JPH03244912A CONTROLLING METHOD FOR COMBUSTION IN FLUIDIZED BED TYPE INCINERATOR 失效
公开(公告)号：JPH03244912A
公开(公告)日：1991-10-31
申请号：JP4418390
申请日：1990-02-22
申请人： EBARA CORP
发明人： FURUKAWA MASAAKI , YOSHIDA YUTAKA , NAITO TAKEYUKI
IPC分类号： F23G5/50
摘要： PURPOSE:To keep a gasification adapted for a combustion capability of a free board and to enable a stable operation to be continued by a method wherein in the event that a poor fluidizing state of fluidizing medium is discriminated in response to an output from a fluidizing state monitoring means, an amount of flowing air is increased, its flowing state is also activated and in turn in the event that the fluidized state is recovered, an amount of flowing air is decreased again. CONSTITUTION:A flowing state of a fluizied bed is detected by a fluidizing state sensing device 13. If a poor fluidizing state is found, an amount of flowing air is increased by a proper fludizing control device 14. If a fluidizing state is recovered, the fluidizing air is returned back to its lower limit value. As this means, a measuring signal PV01 of a flowing air volume sensor 24 and a set value SV of a flowing air amount adjusting meter 25 are compared to each other and calculated, a flowing air adjusting valve 27 is operated so as to adjust an amount of flowing air or in place of cascade controlling the set value SV, the flowing air adjusting valve 27 is directly operated.

18. 发明专利

JPH0375407A CONTROLLER OF AMOUNT OF SPRAYED WATER IN GAS COOLING DEVICE OF INCINERATOR 失效
公开(公告)号：JPH0375407A
公开(公告)日：1991-03-29
申请号：JP21282589
申请日：1989-08-18
申请人： EBARA CORP
发明人： NAITO TAKEYUKI , KURODA YOSHIKI , FURUKAWA MASAAKI , YOSHIDA YUTAKA
IPC分类号： F23G5/50
摘要： PURPOSE:To maintain the temperature of the exhaust gas at the outlet of a gas cooling device at specified temperature with high accuracy by incorporating the detection signal of the state of combustion in a furnace in a feedback control of the temperature of exhaust gas as an element in feedforward control. CONSTITUTION:In addition to the control only by exhaust gas temperature a combustion state detection end 26 which detects the state of combustion, namely the combustion quantity in an incinerator 11 is provided, and this state of combustion detection signal S2 is inputted to a calculator 25. To the calculator 25 control signal S1 is inputted from a temperature regulator 23, and the calculator 25 corrects a delay in time of this control signal S1 by the state of combustion detection signal S2 and outputs control signal S3 to a spray water control valve 20. Namely, the state of combustion detection signal S2 of the state of combustion detection end 26 is signal that is detected at the same time as the combustion of objects to be incinerated and has no delay in time, and this signal is incorporated as an element of feedforward. With this arrangement the delay in time of the control of the amount of water for spray only by the exhaust gas temperature is corrected, and it is, therefore possible to supply the water for spray in a gas cooling device without excess or shortage and maintain the exhaust gas temperature constant.

19. 发明专利

JPH028609A COMBUSTION CONTROL DEVICE IN FLUIDIZED BED TYPE INCINERATOR 失效
公开(公告)号：JPH028609A
公开(公告)日：1990-01-12
申请号：JP15563188
申请日：1988-06-23
申请人： EBARA CORP
发明人： YOSHIDA YUTAKA , KURODA YOSHIKI , NAITO TAKEYUKI , FURUKAWA MASAAKI
IPC分类号： F23G5/50
摘要： PURPOSE:To provide rapid response to variations of the concentration of oxygen at a furnace floor and reduce a variation of the amount of combustion by a method wherein a delay in detecting time of a sensor in detecting the concentration of oxygen in a discharged gas of a fluidized bed type incinerator is corrected by the output of the sensor for detecting brightness within the furnace. CONSTITUTION:A fluidized bed type incinerator 100 is provided with a primary air blower 6 for supplying a primary air to cause a fluidizing medium of a furnace bed 4 to be fluidized, a secondary air blower 5 for supplying a secondary air to a free board 3 and a feeding hopper 1 for feeding substances to be burned. A controlling system for correcting a delay in time of detection in response to an output of a brightness sensor 10 is added to another control system for adjusting secondary air from a secondary air blower 5 in response to an output of a sensor 9 for detecting the concentration of oxygen in discharged gas and controlling the concentration of oxygen in the discharged gas to a desired value, then a variation of concentration of oxygen in the discharged gas is decreased. Since the amount of substances to be burned is controlled in such a way as the concentration of oxygen in a furnace bed and a lightness within the furnace become a predetermined value the variation of the amount of combustion is reduced.

20. 发明专利

JPS61110809A Control method of oxygen concentration in combustion exhaust gas 失效
标题翻译：燃烧排气中氧浓度的控制方法
公开(公告)号：JPS61110809A
公开(公告)日：1986-05-29
申请号：JP22885484
申请日：1984-11-01
申请人： Ebara Corp
发明人： MIURA IKUO , FURUKAWA MASAAKI
IPC分类号： F23G5/50 , F23N5/00 , F23N5/18
CPC分类号： F23N5/006 , F23N5/18 , F23N2025/04 , F23N2037/02 , F23N2041/18
摘要： PURPOSE:To permit to restore an appropriate air-fuel ratio within shorter time for the rapid increase of the combustion volume in the incinerator by a method wherein a differential value with respect to time for an internal pressure in the incinerator is seeked for, by which the basic operating volume is revised and composed, and based on that data the operating panel for adjusting air volume is operated. CONSTITUTION:PV01, an output concerning the furnace internal pressure sent from a furnace internal pressure transmitter 15, is sent to a differential computing element 21, to which a differential computing is made, and its differential value is transformed into signal y2, which is allowed to be sent to an adder 23 only for the case that the furnace internal pressure is varied to the positive side. In the adder 23, MV12, an output operating signal computed from an oxygen concentration contained in the combustion exhaust, and the said signal y2 are composed, which enable to actuate SV03, the setting value of the secondary air adjusting gage 26, variable. A flow rate of the secondary combustion air 8 is detected by a flow detector 24, which is compared with the setting value SV03 by the operating signal MV03, that is able to actuate a damper 10 to control the secondary air flow rate. In this controlling process, the setting value SV03 is made variable by the signal MO02 from the adder 23, and the cascade control is applied to the secondary air flow rate.
摘要翻译：目的：允许在更短的时间内恢复适当的空燃比，以便焚化炉中的燃烧体积迅速增加，其中相对于焚烧炉内部压力的时间的差值被寻求，由此，基本操作量进行修改和组合，并根据该数据操作调节风量的操作面板。构成：将来自炉内压变送器15的炉内部压力的输出PV01发送到差分运算元件21，并进行微分运算，将其差分值变换为信号y2，允许只有在炉内压力变化到正侧的情况下才被送到加法器23。在加法器23中，MV12根据燃烧排气中包含的氧浓度计算的输出运算信号和所述信号y2，能够使SV03动作，二次空气调节量规26的设定值是可变的。二次燃烧空气8的流量由流量检测器24检测，流量检测器24通过操作信号MV03与设定值SV03进行比较，能够致动阻尼器10以控制二次空气流量。在该控制处理中，通过来自加法器23的信号MO02使设定值SV03变化，并对二次风量进行级联控制。

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