WO2005100857A1 - 燃焼排煙処理プラントの遠隔監視システム - Google Patents
燃焼排煙処理プラントの遠隔監視システム Download PDFInfo
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- WO2005100857A1 WO2005100857A1 PCT/JP2004/005148 JP2004005148W WO2005100857A1 WO 2005100857 A1 WO2005100857 A1 WO 2005100857A1 JP 2004005148 W JP2004005148 W JP 2004005148W WO 2005100857 A1 WO2005100857 A1 WO 2005100857A1
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- Prior art keywords
- flue gas
- failure
- gas treatment
- plant
- data
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/55—Controlling; Monitoring or measuring
- F23G2900/55003—Sensing for exhaust gas properties, e.g. O2 content
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2223/00—Signal processing; Details thereof
- F23N2223/38—Remote control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2223/00—Signal processing; Details thereof
- F23N2223/46—Identification
Definitions
- the present invention relates to a remote monitoring system for a combustion flue gas treatment plant, and in particular, to cool and remove high-temperature and high-pressure combustion flue gas discharged from a combustion device such as an incinerator or the like, and to reduce dioxins.
- the present invention relates to a remote monitoring system for a flue gas treatment plant that discharges to the atmosphere after processing. Background art
- incinerators for incinerating industrial wastes and other wastes are configured to cool high-temperature and high-pressure combustion exhaust gas (smoke) exhausted from the incinerator to a predetermined temperature before releasing it to the outside air.
- Smoke exhaust cooler-a dust removal device that removes dust in exhaust gas
- a neutralizer feeder that neutralizes chlorine gas in exhaust gas, which is a raw material for dioxins, by adding a neutralizing agent to exhaust gas
- the combustion flue gas treatment plant provided is known (see Patent Document 1).
- a temperature sensor, a pressure sensor, and the like are provided at appropriate locations, and the sensors are operated so that the sensor (detection) value of the sensor indicates a required appropriate value.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-201
- the present invention is a remote monitoring system for monitoring plant data output from a combustion flue gas treatment plant that cools and removes flue gas discharged from a combustion device at least and that indicates an operation state of the plant.
- a failure value database stored in advance by associating the failure values of the plant data indicating the operating state of the flue gas treatment plant at the time of failure with the causes of the failures, and the plant data from the flue gas treatment plant in the telecommunication network Means for receiving data via the data receiving means, and comparing the brand data received by the data receiving means with the fault value read from the fault value database to detect the presence or absence of a fault in the brand data, and the fault detecting means. Plant data for which a failure was detected by the detection means is associated with the failure value.
- Far failure cause combustion flue gas treatment plant characterized in that it comprises a monitoring means having a failure origin detecting means for detecting a failure cause is read from the fault value database It is a remote monitoring system.
- a failure prediction value database in which prediction values for predicting the occurrence of a future failure of the plant data are stored in advance, and the failure is detected by the failure detection means.
- the monitoring means is provided with a failure prediction means for predicting a failure by comparing the missing plant data with the failure prediction value read from the failure prediction value database.
- the monitoring means includes a failure prediction warning means for warning a prediction result when the failure prediction means predicts that a failure will occur in the blunt data in the future. It is desirable to have.
- the flue gas treatment plant includes a transmitting means for transmitting the plant data to a receiving means of the monitoring means via the telecommunication network. It is desirable.
- the combustion flue gas treatment plant includes a combustion device for burning an object to be burned, a water cooling type capable of controlling a cooling temperature for sequentially cooling the flue gas from the combustion device, and Air-cooling type flue gas coolers, a neutralizer feeder that supplies a neutralizing agent during the flue gas from the air-cooled flue gas cooler, a dust remover that removes dust from the flue gas into which the neutralizer has been injected, A suction fan for sucking the smoke exhausted from the dust removing device and an exhaust chimney for discharging the smoke exhausted by the suction fan into the atmosphere are connected to each other by ducts.
- a water-cooled flue gas cooler inlet temperature sensor and inlet pressure sensor that detect the flue gas temperature and pressure on the population side of the flue gas cooler, respectively, and the operating status of these water-cooled and air-cooled flue gas coolers Detect each Water-cooled and air-cooled flue gas cooler operation detection sensor, air-cooled flue gas cooler inlet temperature sensor and inlet pressure sensor for detecting the flue gas temperature at the inlet side of the air-cooled flue gas cooler, and the neutralizing agent
- a pressure sensor for detecting the amount of the neutralizing agent stored in the feeder, an operation detecting sensor for detecting the operation of the supply unit for supplying the neutralizing agent, and a supply amount detecting sensor for detecting the amount of the neutralizing agent supplied;
- a differential pressure sensor for detecting a pressure difference between a dust room in which exhaust gas before dust removal flows into the dust room and a clean room in which exhaust gas after dust removal flows, and a dust removal device operation detection sensor for detecting an operation state of the dust remover;
- the monitoring means includes: a detection value of the exhaust temperature at the orifice detected by the orifice temperature sensor; and a pressure at the orifice detected by the orifice pressure sensor. It is desirable to have an exhaust gas flow rate calculating means for calculating the flow rate of the flue gas from the detected value.
- FIG. 1 is a system configuration diagram of a main part of a remote monitoring system for a flue gas treatment plant according to an embodiment of the present invention.
- FIG. 2 is an overall configuration diagram showing an overall configuration of a fuel-condition exhaust gas treatment plant monitored by the remote monitoring system shown in FIG.
- FIG. 3 is a diagram showing a list showing detection methods and applications of various sensors shown in FIG.
- FIG. 4 is a flowchart showing a day's worth of remote monitoring processing performed by the monitoring server shown in FIG.
- FIG. 5 is a diagram showing an example of a stator matrix when the monitoring server shown in FIG. 1 detects a failure of the hot water cooling tower of the flue gas treatment plant and its cause.
- FIG. 6 is a flowchart showing a process when the monitoring server shown in FIG. 1 collects plant data of the combustion exhaust gas treatment plant for a predetermined period.
- FIGS. 1 to 6 the same or corresponding parts are denoted by the same reference characters.
- FIG. 1 is a system configuration diagram of a main part of a far-sun monitoring system for a flue gas treatment plant according to an embodiment of the present invention
- FIG. FIG. 2 is a system diagram showing a configuration.
- the remote monitoring system 1 of the flue gas treatment plant 2 remotely monitors the operation of the flue gas treatment plant 2 via a telecommunication network such as the Internet.
- the flue gas treatment plant 2 includes an incinerator 3, which is a combustion device for incinerating burnables such as industrial waste, and a water-cooled flue gas cooler,
- the first, second, third, fourth, and fifth smoke exhaust ducts are connected to the air cooling tower 5, which is an air-cooled smoke exhaust cooler, the dust remover 6, the suction (induction) fan 7, and the chimney 8, which is the exhaust chimney.
- G 9, 10, 11, 1 2 and 13 are connected in series.
- the exhaust gas outlet side of the incinerator 3 is connected to the exhaust gas inlet of the hot water cooling tower 4 via the first flue gas duct 9, and the high temperature and high pressure combustion exhaust gas (exhaust gas) from the incinerator 3 is first heated with hot water. It is cooled by the cooling tower 4.
- the hot water cooling tower 4 has an upper chamber (not shown) into which exhaust gas from the incinerator 3 flows, and a lower chamber into which cooled exhaust gas flows, in its casing.
- the lower chamber is communicated with a plurality of flue pipes, and the outer peripheral surface of the flue pipes is cooled by cooling water to thereby indirectly cool the flue gas flowing through the flue pipes. Since the water-cooled heat exchanger uses water or hot water as the refrigerant, it has a large heat absorption capacity and is suitable for rapid cooling of small exhaust gas from equipment.
- the exhaust gas outlet side of the lower chamber is connected to the exhaust gas inlet side of the air cooling tower 5 via the second flue gas duct 10.
- the air-cooling tower 5 is an air-cooled heat exchanger that cools a smoke tube, which is a straight tubular heat exchange tube (not shown) provided inside the main body casing, with cooling air at a required temperature. It is connected to the outlet side of the second smoke exhaust duct 10.
- the cooling tower 5 is connected to the cooling air inlet at the bottom of the main casing, and the cooling air outlet of an intake cooling fan 14 with an air intake opening to the outside air.
- This is a dry heat exchanger that cools the outer surface of the flue as cooling air and indirectly cools the exhaust gas flowing through the flue.
- This air-cooling tower 5 uses air whose heat absorption is smaller than that of water as the refrigerant, so the cooling capacity of the exhaust gas is smaller than that of the hot-water cooling tower 4.However, since the control accuracy of the air volume is high, the hot-water cooling tower 4 Exhaust gas cooling temperature can be controlled with higher accuracy.
- a steam communication pipe 15 is provided at the upper part of the main casing of the air cooling tower 4 to communicate high-temperature cooling air heated by cooling exhaust gas inside the main casing to a steam exhaust passage (not shown). .
- the air-cooling tower 5 has an exhaust gas outlet side connected to a dust removing device 6 via a third flue gas duct 11, and a neutralizing agent supply pipe 16 is provided in the middle of the third flue gas duct 11.
- a slaked lime injection machine 17 which is a neutralizer supply machine is connected via the liquefier.
- the slaked lime input device 17 uses slaked lime, an example of a neutralizing agent, to neutralize chlorine gas, which is a raw material for dioxins in exhaust gas, and supplies it to the third smoke exhaust duct 11 and the neutralizing agent supply pipe 16. It is injected into the exhaust gas at the junction 18 of.
- the slaked lime charging machine 17 is designed to reduce the amount of slaked lime that has been For example, a screw feeder (not shown) moves to a transport section (not shown), and the slaked lime in the transport section is blown by transport air from a blower (not shown) to supply the neutralizing agent supply pipe 16 to the third smoke exhaust duct 1. Air is blown into the joint 18 of 1 and discharged into the exhaust gas.
- the slaked lime charging machine 17 has a heater (not shown) that heats the inside of the main casing to prevent the slaked lime from being exposed inside the main casing.
- the rotation speed is freely controlled by an inverter motor (not shown), and the amount of slaked lime is controlled by controlling the rotation speed per predetermined time of the screw feeder according to the operating frequency output from the inverter. It is configured to
- the dust removing device 6 has a bag filter (not shown), which is not shown, disposed in a main body casing of the dust removing device 6.
- the exhaust side of the clean room is connected to the end of the intake port of the bow I (attraction) fan 7 via the fourth smoke exhaust duct 12.
- An orifice # 50 is formed in the middle of the fourth smoke exhaust duct 12.
- the suction fan 7 has an exhaust gas outlet, which is an air outlet side, connected to an exhaust gas inlet of a chimney 8 via a fifth smoke exhaust duct 13, and exhausts exhaust gas from the chimney 8 to the atmosphere.
- various sensors 19 to 39 are disposed at appropriate positions to detect the O operating state.
- Fig. 3 shows the names of these sensors 19 to 39, the outline of the detection method, and the locations where they are installed in Fig. 2.
- the hot water cooling tower inlet temperature sensor 19 and the hot water cooling tower input pressure sensor 20 are provided in the middle of the first flue gas duct 9.
- the hot water cooling tower inlet temperature sensor 19 detects the temperature of the exhaust gas flowing into the inlet side of the hot water cooling tower 4 using a thermocouple.
- the hot water cooling tower inlet temperature sensor 20 is a pressure sensor that detects the inlet pressure of the hot water cooling tower 4.
- Hot water cooling tower operation detection (out) Sensor 21 is provided in the hot water cooling tower 4, and when cleaning the flue, a cleaning key is set in a plurality of flue pipes from the upper chamber in the hot water cooling tower 4.
- the air-cooling tower inlet temperature sensor 22 and the air-cooling tower inlet pressure sensor 23 are both sensors installed in the middle of the second flue gas duct 10, and detect the exhaust gas temperature and pressure at the inlet side of the air-cooling tower 5, respectively. is there.
- Air-cooling tower operation detection (out) Sensor 24 is installed in the air-cooling tower 4 and the? When the contact closing signal of the switch that controls the drive motor of the cooling fan 14 on and off is detected, the air cooling tower 5 is detected to be operating, and when the contact opening signal is detected, the air cooling tower 5 is stopped. It is to detect that there is.
- the sensor 25 is disposed in the cooling fan 14 and detects the operating frequency of the inverter that controls the rotation speed of the drive motor (not shown) of the cooling fan 14. This is a sensor for detecting the rotation speed or operating state of the cooling fan 14.
- Air temperature sensor 26 is installed on the cooling air inlet side of air cooling tower 5 and detects the temperature of the cooling air sent from cooling fan 14 to air cooling tower 5.
- the hot air exhaust gas temperature sensor 27 is a thermocouple type temperature sensor or the like that detects the outlet temperature when the cooling air is exhausted by exchanging heat with the exhaust gas in the air cooling tower 5 to increase the temperature. Since the detected value of the hot air exhaust temperature sensor 27 is the outlet temperature of the cooling air of the air cooling tower 5, this detected value is used as the cooling air temperature sensor 2 which is the inlet temperature of the cooling air of the air cooling tower 5. The cooling effect of the cooling tower 5 can be detected from the difference from the detected value 6.
- the slaked lime input pressure sensor 28 is installed in the air passage for conveying lime in the casing of the slaked lime input device 17 and detects the pressure in the conveying air passage to cause condensation of the slaked lime. This is a pressure sensor that detects clogging.
- the slaked lime charging machine operation detection (output) sensor 29 is a sensor that detects the ON / OFF contact signal of the drive motor of the screw feeder for slaked lime input (not shown) and detects ON / OFF of the operation.
- Calculated slaked lime input (output) sensor 30 is a sensor that detects the operating frequency output from the inverter that controls the rotation speed of the drive motor of the screw feeder for slaked lime input. It is possible to detect the number of revolutions per unit time of the U-feeder and the amount of slaked lime.
- the bag filter inlet temperature sensor 31 and the inlet pressure sensor 32 are disposed on the exhaust gas inlet side of the dust remover 6 in the third smoke duct 18, respectively. And a temperature sensor and a pressure sensor, respectively, for detecting the pressure.
- Bag filter differential pressure sensor 33 operation detection (out) Sensor 34 and hopper temperature
- the sensors 35 are disposed in the dust removing device 6, respectively.
- the differential pressure sensor 33 detects a pressure difference between the dust chamber in the dust removing device 6 and the clean room to determine whether a plurality of bag filters are clogged. This is to detect the state.
- the bag filter operation detection sensor 34 blows the air at a predetermined pressure to wash the dust and slaked lime adhering to the bag filter in a pulsed manner (intermittently) to the bag filter. This is a sensor that detects that the operation is in progress when the signal is detected and that the operation is stopped when the contact open signal is detected.
- a heater for preventing condensation of the slaked lime is provided in a lower part of the dust removing device 6 in a hopper (not shown) for receiving dust and slaked lime falling from the dust room. It has a bag filter hopper temperature sensor 35 for detecting the heater temperature by detecting the resistance value of the heater. Note that dust and slaked lime accumulated in the hopper can be appropriately discharged from a discharge port (not shown) of the hopper.
- An orifice section ⁇ ⁇ is provided in the middle of the fourth smoke exhaust duct 12, and a suction fan inlet temperature sensor 36 and an orifice pressure sensor 37 are provided near the orifice section O (for example, on the upstream side). Provided.
- the suction fan inlet temperature sensor 36 is a temperature sensor for detecting the exhaust gas temperature on the exhaust gas inlet side of the suction fan 7, and the orifice pressure sensor 37 is a pressure sensor for detecting the pressure at the orifice portion O.
- the exhaust gas flow rate can be calculated based on the exhaust gas temperature and pressure at the orifice section O. That is, since the exhaust gas in the fourth smoke exhaust duct 12 contains high temperature, high pressure, and some dust, etc., for example, a well-known air flow meter is placed in the exhaust gas flow path in the fourth smoke exhaust duct 12.
- the suction fan operation detection sensor 38 is a sensor that detects the operation frequency of an inverter (not shown) that controls the number of rotations per predetermined time of the fan motor, and detects the operation frequency to correspond to the operation frequency. It is possible to detect the suction air flow to be performed and its operation state.
- the CO analyzer 39 is disposed in the chimney 38 and is a sensor for detecting the CO concentration of the exhaust gas in the chimney 8.
- FIG. 1 shows the detection signals detected by the various sensors 19 to 39 of the combustion and flue gas treatment plant 2 configured as described above as plant data to the monitoring server 41 as monitoring means of the monitoring center 40. Transmission means for transmitting via the Internet 42
- FIG. 1 is a system configuration diagram showing a main part of a remote monitoring system 1 for a combustion and flue gas treatment plant provided with a plant data transmitting device 43.
- a plant data transmission device 43 is provided in the flue gas treatment plant 2 and converts a plurality of analog signals from the various sensors 19 to 39 into digital signals.
- the A / D converters 44a to 44n and the digital signals output from these A / D converters 44a to 44n are converted to the plant data of the combustion and flue gas treatment plant 2.
- the sensor name and the plant configuration diagram etc. together with the required display format such as trend display, required graph format, digital display, text format, or display means such that these multiple display formats can be selected and combined as appropriate
- a certain monitor 45 displays a signal
- a control device 47 for the transmission device 46 and plant data from the transmission device 46 are transmitted to the monitoring server 41 via the Internet 42. Convert DZ A And a modem 4 8.
- the monitoring server 41 is installed in the monitoring center 40 distant from the flue gas treatment plant 2, and transmits plant data of a plurality of flue gas treatment plants 2, 2,... via the Internet 42. It is connected to the device 43 for data communication.
- the monitoring center 41 has a failure value database 49, a failure prediction value database 50, a data storage database 51, and a plurality of monitoring terminals 5 2 a,. 2 ⁇ .
- the fault value database 49 is used when a plurality of the above-described sensors 19 to 39 themselves fail in a plurality of monitored combustion and flue gas treatment plants 2 each including a plurality of plant data transmitting devices 43 and when these faults occur.
- the fault value or fault sensitivity is set to the danger value before the operation of the faulty device stops.
- the fault prediction condition database 50 is used to detect the output from the sensors 19 to 39 when the sensors 19 to 39 themselves are likely to fail in the future in the various types of flue gas treatment plants 2. Value or its threshold value (predicted sensor abnormality value) and the detection value or threshold value detected by various sensors 19 to 39 when there is a high possibility that a failure will occur in the components of the flue gas treatment plant 2 in the future. Is the failure prediction value and the failure prediction event or failure This is a database that is stored in advance for each required standard such as the type and capacity of various types of flue gas treatment blunts 2 in association with the cause of harm prediction.
- the data storage database 51 stores the plant data received from the respective brand data transmitters 43 by the monitoring server 41 by the receiving means by the monitoring server 41, for example, every day (every day), every predetermined period, or for a predetermined period. It is a database that collects and saves all the data.
- the monitoring server 41 has a database management function for managing the failure value database 49, the failure prediction value database 50, and the data storage database 51.
- the viewing server 41 includes receiving means 41 a for receiving plant data of digital signals from the plurality of plant data transmitting devices 43, 43, 43,..., And plant data calculating means 41 b, respectively. It is provided with fault detecting means 41c, fault cause detecting means 41d, fault predicting means 41e, data storing means 41 1, and display control means 41g.
- the plant data calculation means 41b is provided with a clogging calculation function for calculating the clogging of the hot water cooling tower 4 and the air cooling tower 5 by a required calculation of the plant data received by the receiving means 41a, A calculation function for detecting the cooling effect of the air cooling tower 5, a function for calculating the amount of slaked lime to the exhaust gas (supply), and an exhaust gas flow rate calculation for calculating the exhaust gas flow rate flowing through the fourth flue gas duct 12 With function.
- the former clogging calculation function is based on the pressure detection value detected by the hot water cooling tower inlet pressure sensor 20 out of the plant data received by the receiving means 41 a, and the air cooling tower 5 inlet IE force sensor 23 Calculates the difference from the detected pressure value, i.e., the differential pressure, and compares the differential pressure value with a comparison value that indicates the stage or state of clogging. This is given to the failure detection means 41c in order to detect whether or not the clogging is occurring and to predict the state or tendency of the clogging.
- the brand data calculation means 41b has a function of calculating the difference between the detection value of the cooling air temperature sensor 26 of the air cooling tower 5 and the detection value of the hot air / air temperature sensor 27. From the difference, the cooling effect of the air cooling tower 5 can be detected.
- the plant data calculating means 41b has a function of calculating the amount of slaked lime input from the operating frequency of the screw feeder of the slaked lime charging machine 17.
- the exhaust gas flow rate calculation function of the plant data calculation means 41b is based on the temperature of the exhaust gas in the vicinity of the orifice part O detected by the suction fan inlet temperature sensor 36 in the plant data received by the reception means 41a. Based on the detected value and the pressure detection value of the orifice section O detected by the orifice pressure sensor 37, This function calculates the flow rate of exhaust gas and gives it to the failure detection means 41c to detect the presence or absence of the failure.
- the failure detecting means 41c receives the plant data from the plant data transmitting device 43, i.e., the detection values of the various sensors 19 to 39 of each combustion and flue gas treatment plant 2 by the receiving means 41a. At this time, these plant data were read from the fault value database 49 as the fault values or the fault area data of the flue gas treatment plant 2 of the same type or the same capacity as the flue gas treatment plant 2 and of almost the same standard. It compares with the fault value or the fault area data, respectively, and when these plant data correspond to the fault value or the fault area, it is determined that a fault has occurred in the plant data, and a warning is output. If it does not correspond to the fault value or the fault area, it is judged to be normal.
- the fault cause detecting means 41d determines a fault value associated with the fault value or the fault area from the fault value database 49. It reads out and detects the cause of failure in each plant data.
- the fault-probable IJ means 41 e converts plant data for which no fault was detected by the fault detecting means 41 c, that is, plant data determined to be normal, into a fault prediction value or fault prediction corresponding to this plant data.
- the area is read from the predicted failure value data 50, respectively, and compared with each other to predict these failure predicted values or plant data corresponding to the failure area, predict failure trends, and output a warning. Is what you do.
- the data storage unit 4If has a function of storing, in the data storage database 51, the plant data input to the monitoring server 41 and data such as calculations generated in the monitoring server 41.
- the data storage means 41 f stores the plurality of plant data received by the receiving means 41 a, the air cooling tower 5 calculated by the plant data calculating means 41 b, and the respective inlets of the hot water cooling tower 4.
- Calculated value of pressure difference from outlet, slaked lime input amount, calculated value of exhaust gas flow rate at orifice O, fault value database read from fault value database 49 Fault detection, fault detection results, fault warnings, fault causes detected by fault detection means 41d, fault results predicted by fault prediction means 41e, fault prediction warnings, etc. It has a function to save data necessary for failure prediction in the data storage database 51.
- the display control means 41g is the failure value database 49, the failure prediction value database 50 and The above data stored in the data storage database 51 or the data to be stored is transmitted to the display devices 52 al to 52 nl of the plurality of monitoring terminals 52 a to 51 n for monitoring. In accordance with the operation request of the terminals 52a to 51n, the information is appropriately displayed in a required display method such as a trend display, a graph format, or a table format.
- Each monitoring terminal 52a to 52n may monitor the operation of multiple flue gas treatment plants 2 on a one-to-one basis, or one monitoring terminal 52a to 52n. The operation of a plurality or all of the flue gas treatment plants 2 may be individually monitored.
- the monitoring terminals 52a to 52n are equipped with a color or monochrome printer (not shown), and the data displayed on the display devices 52al to 52nl are printed by the printer. It has a function to make
- FIG. 4 is a flowchart showing an example of a processing program and an operation of the monitoring server 41.
- reference numerals with numbers in S denote each step of this flowchart.
- the monitoring server 41 when the monitoring server 41 activates the processing program, the monitoring server 41 first receives a plant from each of the plant data transmission devices 43 of the plurality of combustion and flue gas treatment plants 2, 2,.
- the data is received via the Internet 42, and in the next S2, the required combustion and flue gas treatment plant 2 is selected by the required plant selection operation of the monitoring terminals 52a to 52n.
- the display data 52a al to 52nl which is the display means, displays the plant data of the required flue gas treatment plant 2 as a trend. It is displayed as needed in the required format such as format, graph format, table format, text display, etc.
- the trend format is, for example, a graph or a table in which the configuration of the flue gas treatment plant 2, the positions of the various sensors 19 to 39, and the sensor values of the various sensors 19 to 39 are associated with each other. It is a format in which text data, numerical data, etc. are appropriately combined and the trend is displayed so that it is easy to understand.
- the operating states of the various types of combustion and flue gas treatment plants 2 can be constantly monitored by the monitoring terminals 52a to 52n.
- the plant data of each of the flue gas treatment plants 2 selected by the required blunt selection means of the monitoring terminals 52a to 52n is used as the failure data for each of the flue gas treatment plants 2.
- the fault value data (including the fault area data) is read from the fault value database 49 in order to match the fault value data at the time, and the fault value data and the plant data from the all-combustion flue gas treatment plant 2 are read. And are compared to determine whether or not a failure has occurred in the flue gas treatment plant 2.
- the plant data calculation means 4 1 b outputs the pressure of the hot water cooling tower inlet pressure sensor 20.
- the difference Differential pressure
- the cooling effect of the air cooling tower 5 can be detected from this difference.
- a differential pressure between the pressure detection value of the air cooling tower inlet pressure sensor 23 and the pressure detection value of the bag filter inlet pressure sensor 32 is calculated, and the clogging state of the air cooling tower 5 is detected. Further, the exhaust gas flow rate at the orifice portion O is calculated based on the detection value of the suction fan inlet temperature sensor 36 and the pressure detection value of the orifice pressure sensor 37.
- the predicted failure value data for each combustion flue gas treatment plant 2 is read from the failure value prediction value database 50, and compared with the plant data of the same type of combustion flue gas treatment plant 2 such as various models.
- the future trend prediction that is, no obstacles are currently occurring, but based on the operating rules of operation of the flue gas treatment plant 2, that is, there is a possibility that the obstacle value will reach the obstacle value in the near future in the near future.
- Judgment is made as to whether the value is high, the timing, etc., and it is judged in S4 that the plant data that does not correspond to the predicted value data is normal.
- the results of the failure determination and the failure prediction are stored in the data storage database 51 in association with the plant data of each of the flue gas treatment plants 2 in association with them.
- next S6 it is determined whether 24 hours (that is, 1 day) has elapsed since the plant data was received from each of the flue gas treatment plants 2, and 24 hours have not elapsed. If so, return to S 1 above and repeat the following steps.
- the process proceeds to S8.
- the monitoring terminal 52 a to 52 n that monitors the flue gas treatment plant 2 that outputs this plant data has a failure in the display 52 al to 52 nl. Will be displayed and an audible alarm will be output to alert you of the failure.
- the failure data is output to the monitoring terminals 52a to 52n and stored in the data storage database 51.
- FIG. 5 shows an example of a status matrix in which the occurrence of a failure in the hot water cooling tower 4 is associated with the cause of the failure. That is, the failure detection means 41c causes the sensor values of the inlet temperature sensor 10 and the pressure sensor 11 of the hot water cooling tower 4 to be normal values, the hot water cooling tower operation detection sensor 21 to be ON, and the air cooling tower inlet temperature sensor, for example. 22 When the sensor value of 2 is a normal value, the exhaust gas flow rate in the orifice section O is a normal value, and the sensor value of the suction fan operation detection sensor 38 is a normal value, it is determined that the hot water cooling tower 4 is operating normally. .
- the sensor values of these sensors 10, 11, 21, 22, 38 and the orifice O flow rate are normal values, but only the sensor value of the hot water cooling tower inlet temperature sensor 10 is abnormal. If it is the value, it is determined that the furnace temperature of the hot water cooling tower 4 is abnormal. Further, when the sensor value of the hot water tower inlet pressure sensor 11 (for example, when abnormally high) and only the orifice flow rate are abnormal values (when abnormally low), the duct connected to the hot water cooling tower 4 is clogged. It is determined that a failure has occurred. Furthermore, when only the sensor value of the air cooling tower inlet temperature sensor 22 is an abnormal value, it is determined that a failure has occurred in which the operation of the fan of the hot water cooling tower 4 has stopped.
- the hot water cooling tower operation detection sensor 21 detects that the operation is OFF (stopped) and only the sensor value of the air cooling tower inlet temperature sensor 22 is abnormal, the other sensor values and the orifice flow rate are normal. Even in this case, it is determined that a failure in which the operation of the hot water cooling tower 4 has stopped has occurred.
- the stator list matrix constructed in this way is also created in advance for the incinerator 3, air cooling tower 5, slaked lime input machine 17, dust remover 6, suction fan 7, and chimney 8 that constitute the combustion and flue gas treatment plant 2.
- the failure value is stored in the database 19. Then, if it is determined in S3 that the plant data and the calculated value are normal, as described above, the plant data and the calculated value are further converted from the failure value prediction database 50 in S4.
- the read failure prediction value data is compared with the read failure prediction value data, and if at least a part of the brand data and its calculated value corresponds to the failure prediction value data, a warning of the failure prediction is issued in the next S10 at the monitoring terminal 5 2
- the output sprays a to 52n are displayed on the display 52 a1 to 52n1, and at the next S11, the failure prediction warning data is output and stored in the data storage database 51.
- Figure 6 shows the above-mentioned blunt data and calculated values from flue gas treatment blunt 2 for one week.
- This is a flowchart showing the operation of the monitoring server 41 when the data is stored in the data storage database 51 after being aggregated for a predetermined period, such as one month, one month, one year, etc. Each step of the flowchart is shown.
- the exhaust gas cooled by the hot water cooling tower 4 flows into the air cooling tower 5 via the second duct 10, and is blown from the blower 25 while descending through a plurality of smoke tubes from there.
- the air is further indirectly cooled by cooling air that cools the outer surface of each flue. As a result, the exhaust gas is rapidly cooled to a required temperature.
- the flue gas is sprayed and injected in a predetermined amount by the slaked lime supplied by the slaked lime charging machine 17 at a connecting portion 18 which is connected to the neutralizing agent supply pipe 16 in the middle of the third duct. Neutralizes and reduces chlorine gas in exhaust gas, which is a raw material for marine products.
- the exhaust gas flows into the dust room in the bag filter 6 and then passes through a plurality of bag filter members made of cloth or the like.At that time, dust and lime powder in the exhaust gas are removed, and the exhaust gas flows into the clean room. 4
- Smoke exhaust duct 12 sucks air through orifice section O by suction fan 7 and is exhausted from chimney 8 to the outside air.
- various analog detection values detected by various sensors 19 to 39 such as the hot water cooling tower inlet temperature sensor 19, etc.
- the (sensor value) is first input to the AZD converters 44 a to 44 n of the plant data transmission device 43, where it is converted into a digital signal and monitored by the monitor 45. Further, these sensor value signals are transmitted to the monitoring server 41 of the monitoring center 40 via the internet 42 as plant data indicating the operating state of the flue gas treatment plant 2 by the transmitting device 46 and the modem 48. Sent to.
- the monitoring server 41 receives the digital brand data from the plurality of plant data transmitting devices 43 by the receiving means 41a.
- the plant data calculating means 41b calculates the pressure difference, which is the difference between the detected pressure values of the hot water cooling tower inlet pressure sensor 20 and the air cooling tower inlet pressure sensor 23, out of the received plant data. Further, a difference between the detection value of the cooling air temperature sensor 26 of the air cooling tower 5 and the detection value of the hot air exhaust temperature sensor 27 is calculated. Further, a pressure difference which is a difference between the detected pressure values of the air cooling tower inlet pressure sensor 23 and the bag filter inlet pressure sensor 32 is calculated.
- the plant data calculating means 41b calculates the amount of slaked lime input from the operating frequency of the inverter motor of the slaked lime input machine such as a screw feeder detected by the slaked lime input amount detection sensor 30. Further, the plant data calculating means 4 1 b calculates the orifice portion O by using a predetermined formula based on the pressure detection value of the orifice pressure sensor 37 and the temperature detection value of the suction fan inlet temperature sensor 36 near the orifice portion O. The exhaust gas flow rate at is calculated.
- the fault detection means 41 converts the calculated value and the plant data into the fault value data of the same type of combustion flue gas treatment plant 2 as the flue gas flue gas treatment plant 2 which outputs the plant data.
- the fault value is compared with the fault value data read from the fault value database 49 to detect a fault.
- the fault cause associated with the fault is detected by the fault matrix detecting means 41d from the fault matrix read out from the fault value database 49.
- the plant data for which no failure was detected are compared with the stator matrices of the predicted failure values of the same type of flue gas treatment plant 2 read from the predicted failure value database 50 by the failure prediction means 41 e. Then, it is predicted whether a failure will occur in the future, and the timing of the failure will be predicted.
- the calculated values calculated by the plant data calculating means 41b, the detection results detected by the fault detecting means 41c, the fault causes detected by the fault cause detecting means 41d, and the fault predicting means 41 The failure prediction result predicted by e is stored in the data storage unit 41 f together with the plant data received by the receiving unit 41 a.
- the data is stored in the data storage means for each processing plant 2 on a daily basis or for a predetermined period of time, and is stored on the display 52 of the monitoring terminals 52 a to 52 n as appropriate. Not printed out from the printer.
- each operator operating each of the monitoring terminals 52a to 52n can visually observe the print data and the like displayed on the display of each of the monitoring terminals 52a to 52n, thereby generating a plurality of combustion emissions.
- the operating state of the smoke treatment plant 2 can be intensively remotely monitored from the combustion and flue gas treatment plant 2 by a monitoring center 40 at a remote location.
- the monitoring terminals 52a to 52 ⁇ can be used to determine the location of the failure of the multiple flue gas treatment plants 2, the cause of the failure, and the prediction of the failure. It is possible to know early before the operation stops.
- each monitoring terminal 5 2 a to 52n operators collect the reports (daily, monthly, seasonal, and annual reports) and diagnostic reports and give them to the operating sites or business sites of each combustion and flue gas treatment plant 2 to produce a combustion and flue gas treatment plant.
- the risk of stopping the operation can be reduced, and the operation rate can be improved.
- reports and the like can be easily created based on the above-mentioned various data output to the monitoring terminals 52 a to 52 n or by attaching these various data.
- reports are given to the operation sites and business establishments of the flue gas treatment plant 2 by mail, fax, e-mail, and the like.
- emergency notification means such as telephone and e-mail are used as appropriate.
- reports can provide an appropriate operation method for the combustion and flue gas treatment plant 2, which reduces emissions of harmful substances such as dioxins, chlorine gas, and dust in the exhaust gas exhausted to the outside air. And improve the environment.
- each combustion and flue gas treatment plant 2 it is possible to receive advice necessary for operation such as an appropriate operation method, inspection, and repair method from the report and the like.
- a skilled technician who is familiar with the operation of the flue gas treatment plant 2 is assigned to the operators of the monitoring terminals 52 a to 52 n, so that a skilled operator who does not necessarily have a high labor cost can be assigned to each combustion exhaust system. There is no need to place it in the smoke treatment plant 2. As a result, the operating cost of the flue gas treatment plant 2 can be reduced.
- the monitoring terminals 52a to 52n detect a failure and a failure prediction of the flue gas treatment plant 2
- a warning is output by outputting an alarm sound.
- the warning can be notified to the operators of the monitoring terminals 52a to 52n with high probability.
- the data storage means 51 has a means to collect and store the data to be stored such as plant data, etc. for a predetermined period of time such as week or month, so that reports can be collected weekly, monthly, quarterly, annual, etc. The workability at the time of collectively creating the data can be improved.
- the monitoring server 41 is configured as monitoring means for monitoring plant data from the flue gas treatment plant 2
- the monitoring means may be configured as a monitoring terminal in place of the monitoring server 41 in place of the clients 52 a to 52 ⁇ .
- the monitoring server 41 is provided with a receiving means 41 a for receiving plant data
- the monitoring server 41 is provided with a failure value database 49, a failure prediction value database 50, and a data storage database 5.
- the plant data calculation means 41 b the failure detection means 41 c, the failure cause detection means 41 d, and the failure prediction provided in the monitoring server 41 in the above embodiment are provided.
- the means 41e, the data storage means 41f and the display control means 41g these clients 52a to 52n can be monitored by substantially the same monitoring means as the monitoring server 41 of the above embodiment. It may be constituted as. Industrial applicability
- the operating state of the flue gas treatment plant can be appropriately monitored from a remote place.
- a failure of the flue gas treatment plant can be detected early by the failure detection means of the monitoring means before the operation of the plant is stopped, and the cause of the failure can be detected by the failure cause detection means of the monitoring means.
- the operation of the combustion and flue gas treatment plant can be suppressed and the operation rate can be improved.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Incineration Of Waste (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2004/005148 WO2005100857A1 (ja) | 2004-04-09 | 2004-04-09 | 燃焼排煙処理プラントの遠隔監視システム |
| CNA2004800427177A CN1938547A (zh) | 2004-04-09 | 2004-04-09 | 燃烧排烟处理设备的远距离监视系统 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2004/005148 WO2005100857A1 (ja) | 2004-04-09 | 2004-04-09 | 燃焼排煙処理プラントの遠隔監視システム |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005100857A1 true WO2005100857A1 (ja) | 2005-10-27 |
Family
ID=35150080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/005148 Ceased WO2005100857A1 (ja) | 2004-04-09 | 2004-04-09 | 燃焼排煙処理プラントの遠隔監視システム |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1938547A (ja) |
| WO (1) | WO2005100857A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2143475A3 (en) * | 2008-07-08 | 2012-08-08 | Mitsubishi Heavy Industries, Ltd. | System for collecting carbon dioxide in flue gas |
| CN104122193A (zh) * | 2014-07-25 | 2014-10-29 | 西安交通大学 | 一种烟气冷却器低温腐蚀过程及状态的同步在线监测装置 |
| IT201800001756A1 (it) * | 2018-01-24 | 2019-07-24 | Area Professional Soc Cooperativa | Apparecchiatura e sistema di controllo e analisi dei fumi di scarico emessi da un generatore di calore |
| CN116088443A (zh) * | 2022-12-29 | 2023-05-09 | 中冶京诚工程技术有限公司 | 铁厂环境除尘智能管控系统 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101199924B1 (ko) * | 2012-05-23 | 2012-11-09 | 한국환경공단 | 디지털 통신방식 굴뚝자동측정기기 기반 굴뚝 원격감시 시스템 |
| CN105066143A (zh) * | 2015-08-10 | 2015-11-18 | 宜兴福鼎环保工程有限公司 | 一种焚烧炉 |
| CN109482004B (zh) * | 2017-09-12 | 2021-09-14 | 苏州协昌环保科技股份有限公司 | 智慧工业烟气、粉尘治理云平台及其控制方法 |
| TWI780418B (zh) * | 2020-03-18 | 2022-10-11 | 中國鋼鐵股份有限公司 | 焚化系統之進料口架橋的偵測方法 |
| CN116817282B (zh) * | 2023-08-31 | 2024-05-28 | 四川发展环境科学技术研究院有限公司 | 垃圾焚烧系统分析方法及系统 |
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| JPH105536A (ja) * | 1996-06-20 | 1998-01-13 | Nkk Corp | 反応バグフィルターシステム及びその運転方法 |
| JP2001084035A (ja) * | 1999-09-17 | 2001-03-30 | Toshiba Corp | 運転監視システム |
| JP2001215011A (ja) * | 2000-02-02 | 2001-08-10 | Muramatsu Fuusou Setsubi Kogyo Kk | 焼却施設の煙道装置 |
-
2004
- 2004-04-09 WO PCT/JP2004/005148 patent/WO2005100857A1/ja not_active Ceased
- 2004-04-09 CN CNA2004800427177A patent/CN1938547A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH105536A (ja) * | 1996-06-20 | 1998-01-13 | Nkk Corp | 反応バグフィルターシステム及びその運転方法 |
| JP2001084035A (ja) * | 1999-09-17 | 2001-03-30 | Toshiba Corp | 運転監視システム |
| JP2001215011A (ja) * | 2000-02-02 | 2001-08-10 | Muramatsu Fuusou Setsubi Kogyo Kk | 焼却施設の煙道装置 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2143475A3 (en) * | 2008-07-08 | 2012-08-08 | Mitsubishi Heavy Industries, Ltd. | System for collecting carbon dioxide in flue gas |
| US8623286B2 (en) | 2008-07-08 | 2014-01-07 | Mitsubishi Heavy Industries, Ltd. | System for collecting carbon dioxide in flue gas |
| US9249711B2 (en) | 2008-07-08 | 2016-02-02 | Mitsubishi Heavy Industries, Ltd. | System for collecting carbon dioxide in flue gas |
| US9341101B2 (en) | 2008-07-08 | 2016-05-17 | Mitsubishi Heavy Industries, Ltd. | System for collecting carbon dioxide in flue gas |
| CN104122193A (zh) * | 2014-07-25 | 2014-10-29 | 西安交通大学 | 一种烟气冷却器低温腐蚀过程及状态的同步在线监测装置 |
| IT201800001756A1 (it) * | 2018-01-24 | 2019-07-24 | Area Professional Soc Cooperativa | Apparecchiatura e sistema di controllo e analisi dei fumi di scarico emessi da un generatore di calore |
| CN116088443A (zh) * | 2022-12-29 | 2023-05-09 | 中冶京诚工程技术有限公司 | 铁厂环境除尘智能管控系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1938547A (zh) | 2007-03-28 |
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