TWI689696B - Burner monitoring method and burner monitoring system - Google Patents

Abstract

A burner monitoring method and a burner monitoring system are provided. The burner monitoring system includes a server and plural monitoring devices. In the burner monitoring method, at first, the monitoring devices are used to obtain present COG (Coke Oven Gas) pressure values of burners, present air pressure values of burners and present exhaust gas temperature values of burners, and the present COG pressure values of burners, the present air pressure values of burners and the present exhaust gas temperature values of burners are transmitted to the server. In the server, at first, standard values of exhaust gas temperature, COG pressure and air pressure are provided. Then, standard indexes of exhaust gas temperature, COG pressure and air pressure are calculated in accordance with the present COG pressure values, the present air pressure values and the present exhaust gas temperature values. Thereafter, standard ranges of exhaust gas temperature, COG pressure and air pressure are calculated in accordance with the standard indexes of exhaust gas temperature, COG pressure and air pressure for determination of abnormal operation of the burners.

Description

Burner monitoring method and burner monitoring system

The invention relates to a burner monitoring method and a burner monitoring system, and in particular to a burner monitoring method and a burner monitoring system of a cold rolling annealing furnace.

The cold rolling annealing furnace heats the steel coil through a plurality of burners in the manner of radiant heat to complete the step of annealing the steel coil. Since the high temperature environment of the cold rolling annealing furnace is not suitable for the workers to check or adjust the furnace on site for a long time, most of the current cold rolling annealing furnaces check or adjust the cold rolling annealing furnace on a regular schedule. However, regular inspections or furnace adjustments waste equipment costs, and if the burner has abnormal conditions, on-site inspectors are easily exposed to dangerous environments. In addition, most cold-rolling annealing furnaces use coke oven gas (Coke Oven Gas; COG) as a fuel, which makes the burner pipes easily blocked.

In order to solve the above-mentioned problems, one aspect of the present invention provides a burner monitoring method and a burner monitoring system, which can monitor the health of the burner and issue warning/warning messages accordingly, so that the on-site operators can immediately Carry out furnace adjustment to avoid burner failure.

The above burner monitoring method includes: performing a trial operation step to obtain a linear ratio of coke oven gas pressure, wherein the linear ratio of coke oven gas pressure is the ratio of the historical pressure value of coke oven gas to the historical temperature value of exhaust gas of each burner ; Provide the standard value of the exhaust gas temperature of each burner; use multiple monitoring devices to obtain the current pressure value of the coke oven gas (Coke Oven Gas; COG) of each burner and the current temperature value of the exhaust gas; according to the exhaust gas of each burner The standard value of temperature and the coke oven gas pressure are linearly proportional to provide the standard value of coke oven gas pressure; calculate the square of the difference between the current pressure value of the coke oven gas of each burner and the standard value of coke oven gas pressure; The sum of the square values of the coke oven gas pressure difference of the burners is obtained to obtain the sum of the coke oven gas pressure difference squares; the sum of the square of the coke oven gas pressure difference of each burner is divided by the number of burners, and then the root number is obtained to obtain Standard index of coke oven gas pressure; according to the standard value of coke oven gas pressure of each burner and the standard index of coke oven gas pressure, calculate the standard pressure range of coke oven gas of each burner; determine the current coke oven gas of each burner Whether the pressure value is within the corresponding standard pressure range of coke oven gas. When the current pressure value of the coke oven gas of a burner is not within the corresponding standard pressure range of the coke oven gas, a first warning message is issued.

In some embodiments, the above test operation step can further obtain a linear ratio of air pressure, wherein the linear ratio of air pressure is the ratio of the historical air pressure value of each burner to the historical exhaust gas temperature value. The above burner monitoring method further includes: using a monitoring device to obtain the current air pressure value of each burner; providing a standard value of air pressure according to the linear ratio of the exhaust gas temperature standard value of each burner and the air pressure; calculating each combustion Air of the device The square of the air pressure difference between the pressure value and the standard value of the air pressure; add the square of the air pressure difference of each burner to obtain the sum of the square of the air pressure difference; divide the sum of the square of the air pressure difference of each burner by the combustion The number of burners, and then root, to obtain the standard index of air pressure; calculate the standard air pressure range of each burner according to the standard value of air pressure and standard pressure of each burner; determine the air of each burner Whether the current pressure value is within the corresponding standard air pressure range. When the current air pressure value of a burner is not within the corresponding standard air pressure range, a second warning message is issued.

In some embodiments, the above-mentioned burner monitoring method further includes: calculating the square of the difference between the current temperature of the exhaust gas of each burner and the standard value of the temperature of the exhaust gas; adding the square of the difference in the temperature of the exhaust gas of each burner To obtain the sum of the square of the exhaust gas temperature difference; divide the sum of the square of the exhaust gas temperature difference of each burner by the number of burners, and then open the root sign to obtain the standard index of the exhaust gas temperature of each burner; The exhaust gas temperature standard value and the exhaust gas temperature standard index are used to calculate the exhaust gas standard temperature range of each burner; determine whether the current exhaust gas temperature value of each burner is within the corresponding exhaust gas standard temperature range. When the current temperature value of the exhaust gas of a burner is not within the corresponding standard temperature range of the exhaust gas, a third warning message is issued.

In some embodiments, the above-described burner monitoring method further includes: transmitting the first warning message, the second warning message, and/or the third warning message to the field operator.

In some embodiments, the lower limit of the standard range of coke oven gas is the difference between the standard value of coke oven gas pressure and the standard index of coke oven gas pressure, and the upper limit of the range of standard pressure of coke oven gas is the standard value of coke oven gas pressure and coke oven gas pressure Force standard The sum of the indicators. The lower limit of the standard air pressure range is the difference between the standard value of air pressure and the standard index of air pressure, and the upper limit of the standard range of air pressure is the sum of the standard value of air pressure and the standard index of air pressure. The lower limit of the exhaust gas standard temperature range is the difference between the exhaust gas temperature standard value and the exhaust gas temperature standard index, and the upper limit of the exhaust gas standard temperature range is the sum of the exhaust gas temperature standard value and the exhaust gas temperature standard index.

The above burner monitoring system includes a server and a plurality of monitoring devices. The monitoring device is used to obtain the current pressure value of the coke oven gas and the current temperature value of the exhaust gas of each burner. The server is electrically connected to the monitoring device. The server includes a standard value providing module and a coke oven gas pressure monitoring module. The standard value providing module is used to: provide the standard value of exhaust gas temperature of each burner and the linear ratio of coke oven gas pressure, wherein the linear ratio of coke oven gas pressure is the historical pressure value of coke oven gas of each burner to the history of exhaust gas Ratio of temperature values; provide standard value of coke oven gas pressure according to linear ratio of exhaust gas temperature standard value of each burner and coke oven gas pressure. The coke oven gas pressure monitoring module is used to calculate the square value of the difference between the current coke oven gas pressure of each of these burners and the standard value of the coke oven gas pressure; the coke oven gas pressure of each burner Sum the squared differences to obtain the sum of squared coke oven gas pressure differences; divide the sum of the squared coke oven gas pressure differences of each burner by the number of burners, and then open the root number to obtain the standard index of coke oven gas pressure; Calculate the standard pressure range of the coke oven gas of each burner according to the standard value of coke oven gas pressure and the standard index of coke oven gas pressure of each burner; determine whether the current pressure value of the coke oven gas of each burner is in the corresponding coke Within the standard pressure range of furnace gas. When the current pressure value of the coke oven gas of a burner is not within the corresponding standard pressure range of the coke oven gas, a first warning message is issued.

In some embodiments, the monitoring device is further used to obtain each fuel The current pressure of the air in one of the burners. The standard value providing module is further used to provide a linear ratio of air pressure, and to provide a standard value of air pressure according to the standard value of exhaust gas temperature of each burner and the linear ratio of air pressure, wherein the linear ratio of air pressure is the air of each burner The ratio of historical pressure value to historical temperature value of exhaust gas. The server also includes an air pressure monitoring module. The air pressure monitoring module is used to: calculate the square of the air pressure difference between the current air pressure value of each burner and the standard air pressure value; Sum the squared values to obtain the sum of squares of air pressure difference; divide the sum of squares of air pressure difference of each burner by the number of burners, and then open the root sign to obtain the standard index of air pressure of each burner; The standard value of the air pressure of a burner and the standard index of the air pressure are used to calculate the standard air pressure range of each burner; determine whether the current pressure value of the air of each burner is within the corresponding standard air pressure range. When the current pressure value of one of the burners is not within the corresponding standard air pressure range, a second warning message is issued.

In some embodiments, the server further includes an exhaust gas temperature monitoring module. The exhaust gas temperature monitoring module is used to: calculate the square value of the exhaust gas temperature difference between the current exhaust gas temperature value of each burner and the exhaust gas temperature standard value; The sum of the square of the exhaust gas temperature difference of one burner is obtained to obtain the sum of the square of the exhaust gas temperature difference; the sum of the square of the exhaust gas temperature difference of each burner is divided by the number of burners, and then the root number is obtained to obtain the standard index of the exhaust gas temperature; Calculate the exhaust gas standard temperature range of each burner according to the exhaust gas temperature standard value and exhaust gas temperature standard index of each burner; determine whether the current exhaust gas temperature value of each burner is within the exhaust gas standard temperature range. When the current temperature value of the exhaust gas of one of the burners is not within the corresponding standard temperature range of the exhaust gas, a third warning signal is issued interest.

In some embodiments, each monitoring device includes a thermocouple, a first air pressure sensor, a second air pressure sensor, and a control module. The thermocouple is used to measure the current temperature value of the exhaust gas corresponding to one of the above burners. The first air pressure sensor is used to measure the current pressure value of the coke oven gas corresponding to the burner. The second air pressure sensor is used to measure the current pressure value of the air corresponding to the burner. The control module is electrically connected to the thermocouple, the first air pressure sensor and the second air pressure sensor to receive the current temperature value of the exhaust gas, the current pressure value of the coke oven gas and the current pressure value of the air, and to digitize the current temperature of the exhaust gas Value, current pressure value of coke oven gas and current pressure value of air. The wireless transmission module is electrically connected to the control module to transmit the current temperature value of exhaust gas, the current pressure value of coke oven gas and the current pressure value of air to the server.

In some embodiments, the aforementioned server is a gateway.

110‧‧‧Burner

120‧‧‧Monitoring device

121‧‧‧The first air pressure sensor

122‧‧‧Second Air Pressure Sensor

123‧‧‧thermocouple

124‧‧‧Control module

125‧‧‧Wireless transmission module

130‧‧‧fuel pipeline

140‧‧‧Server

141‧‧‧ Standard value providing module

142‧‧‧Coke oven gas pressure monitoring module

143‧‧‧Exhaust gas temperature monitoring module

144‧‧‧ Air pressure monitoring module

300‧‧‧Burner monitoring method

301‧‧‧Step

302‧‧‧Step

310~350‧‧‧Step

331~336‧‧‧Step

341~346‧‧‧Step

351~356‧‧‧Step

In order to make the above and other objects, features, advantages and embodiments of the present invention more obvious and understandable, the drawings are described in detail as follows: [FIG. 1] illustrates the combustion of a cold rolling annealing furnace according to an embodiment of the present invention [FIG. 2] is a schematic block diagram of a monitoring device for a burner according to an embodiment of the invention; [FIG. 3] is a schematic flowchart of a burner monitoring method according to an embodiment of the invention; [FIG. 4] is a schematic flow chart showing the steps of coke oven gas pressure monitoring according to an embodiment of the invention; [FIG. 5] is a schematic flow chart showing the steps of air pressure monitoring according to an embodiment of the invention; and [FIG. 6] is It is a schematic flowchart of an exhaust gas temperature monitoring step according to an embodiment of the invention.

With regard to the "first", "second", ... etc. used in this article, it does not specifically mean the order or order, it is only to distinguish the elements or operations described in the same technical terms.

Please refer to FIGS. 1 and 2. FIG. 1 illustrates a burner 110 of a cold rolling annealing furnace according to an embodiment of the present invention. FIG. 2 illustrates a functional block diagram of a monitoring device 120 of the burner 110. In the cold rolling annealing furnace, the burner 110 receives coke oven gas (Coke Oven Gas; COG) and air and combusts it to generate gas to provide radiant heat to the steel belt for annealing. In one embodiment, the gas of the burner 110 passes through the W-shaped tube to provide radiant heat to the steel belt. When these gases pass through the W-shaped tube, they will be exhausted to the outside of the cold rolling annealing furnace. As shown in FIG. 1, all the burners 110 receive coke oven gas through the same fuel pipe 130. The fuel pipe 130 has a main valve switch (not shown) to control the total amount of coke oven gas supplied to all burners 110. Similarly, all burners 110 receive air through the same air duct (not shown). The air duct has a main valve switch (not shown) to control the total amount of air supplied to all burners 110.

In the embodiment of the present invention, each burner 110 is provided with a monitoring device 120 to detect the coke oven gas pressure value, air pressure value and exhaust gas temperature value of each burner 110, and the obtained coke oven The air pressure value, air pressure value and exhaust gas temperature value are transmitted to the server 140. As shown in FIG. 2, the monitoring device 120 includes a first air pressure sensor 121, a second air pressure sensor 122, a thermocouple 123, a control module 124 and a wireless transmission module 125. The first air pressure sensor 121 is used to detect the pressure of the coke oven gas received by the burner 110 to obtain the current pressure value of the coke oven gas of the burner 110. The second air pressure sensor 122 is used to detect the pressure of the air received by the burner 110 to obtain the current air pressure value of the burner 110. The thermocouple 123 is used to measure the temperature of the exhaust gas discharged from the burner 110 to obtain the current temperature value of the exhaust gas from the burner 110.

The control module 124 is electrically connected to the first air pressure sensor 121, the second air pressure sensor 122 and the thermocouple 123 to receive the current coke oven gas current pressure value, air current pressure value and exhaust gas current temperature value. In this embodiment, the control module 124 is used to digitize the current pressure value of coke oven gas, the current pressure value of air and the current temperature value of exhaust gas. Then, the control module 124 transmits the digitized current pressure value of the coke oven gas, the current pressure value of the air and the current temperature value of the exhaust gas to the wireless transmission module 125, so as to use the wireless transmission module 125 to transmit the current pressure value of the coke oven gas, The current pressure value of air and the current temperature value of exhaust gas are uploaded to the server 140. In the embodiment of the present invention, the wireless transmission module 125 may utilize WiFi, ZigBee or BLE wireless transmission technology to transmit the above data to the server 140, but the embodiment of the present invention is not limited thereto.

Returning to FIG. 1, the server 140 is used to receive the current pressure value of coke oven gas, the current pressure value of air and the current temperature value of exhaust gas corresponding to each burner 110, and determine whether these burners 110 are abnormal. In this embodiment, the server 140 includes a standard value providing module 141, a coke oven gas pressure monitoring module 142, an exhaust gas temperature monitoring module 143, and an air pressure monitoring module 144 to determine whether the operation of the burner 110 is abnormal . In one embodiment of the present invention, the server 140 is a gateway, which can upload the above data (such as the current pressure value of coke oven gas, the current pressure value of air, and the current temperature value of exhaust gas) to one through software. Cloud platform, and integrated as a visual interface for cold rolling annealing furnace operators to understand the working status of each burner 110.

Please refer to FIG. 3, which is a schematic flowchart of a burner monitoring method 300 according to an embodiment of the present invention. In the embodiment of the present invention, the server 140 uses the burner monitoring method 300 to determine whether the corresponding burner 110 is abnormal according to the data uploaded by each monitoring device 120. In the embodiment of the present invention, all the burners 110 are monitored by zones, and the burner monitoring method 300 provides a standard pressure range of coke oven gas, a standard pressure range of air for the burners 110 in each zone, and An exhaust gas standard temperature range to determine whether the burner 110 in the area is abnormal. Specifically, the burner monitoring method 300 includes a coke oven gas pressure monitoring step 330, an air pressure monitoring step 340, and an exhaust gas temperature monitoring step 350. The aforementioned coke oven gas pressure monitoring module 142 is used to perform a coke oven gas pressure monitoring step 330 to determine whether the burner 110 is abnormal through the coke oven gas pressure of the burner 110 and the aforementioned standard range of coke oven gas pressure. The aforementioned exhaust gas temperature monitoring module 143 is used to perform an exhaust gas temperature monitoring step 350 to determine whether the burner 110 has abnormality through the exhaust gas temperature of the burner 110 and the aforementioned standard temperature range of the exhaust gas. The aforementioned air pressure monitoring module 144 is used to perform the air pressure monitoring step 340 to determine whether the burner 110 is abnormal through the air pressure of the burner 110 and the aforementioned standard air pressure range.

In the burner monitoring method 300, a trial operation step 301 is first performed to obtain a linear ratio of the coke oven gas pressure and an air pressure linear ratio, wherein the linear ratio of the coke oven gas pressure is the historical pressure value of the coke oven gas of the burner 110 to the exhaust gas history The ratio of the temperature value, and the linear ratio of the air pressure is the ratio of the historical air pressure value of the burner 110 to the historical temperature value of the exhaust gas. In the trial operation step 301, the cold-rolling annealing furnace performs trial operation, and at the same time obtains the exhaust gas temperature value of the burner 110, the coke oven gas pressure value (ie, the historical pressure value of the coke oven gas) and the air pressure value (ie, the historical pressure value of the air ). Since the burner 110 is in a normal state during the trial operation, the coke oven gas pressure value, air pressure value and exhaust gas temperature value of each burner 100 are the same, and the ratio of the coke oven gas pressure of the burner 110 to the exhaust gas temperature The ratio of air pressure to exhaust gas temperature can be used to calculate the standard value of the coke oven gas pressure of the burner 100 and the standard value of air pressure. For example, in one embodiment, when the cold rolling annealing furnace is commissioned, the burner 110 has a coke oven gas pressure value of 366 millimeters of water (mmH ₂ O) and an air pressure value of 34 millimeters of water (mmH ₂ O) 3. The exhaust gas temperature is 875℃. As such, the linear ratio of the coke oven gas pressure of the burner 110 is 0.42, and the linear ratio of the air pressure is 0.038. After the cold rolling annealing furnace goes online, the linear ratio of coke oven gas pressure (eg 0.42) and the linear ratio of air pressure (eg 0.038) can be used to help calculate the standard values of the coke oven gas pressure and air pressure of the burner 110.

Next, an online monitoring step 302 is performed. The online monitoring step 302 is to monitor the burner 100 after the cold rolling annealing furnace is officially launched. In the online monitoring step 302, step 310 is first performed to provide the standard value of exhaust gas temperature, the standard value of coke oven gas pressure, and the standard value of air pressure using the standard value providing module 141. In step 310, the standard value providing module 141 will provide the standard values of the exhaust gas temperature, coke oven gas pressure and air pressure according to the current process parameters. Specifically, in step 310, first, the standard value providing module 141 is used to provide the standard value of the exhaust gas temperature. The standard value of the exhaust gas temperature is related to the annealing temperature of the steel strip, which can be found by looking up the table. For example, the standard value of the exhaust gas will be calculated by the program-controlled computer through the thickness of the steel strip being rolled and the properties of the steel type.

Next, the standard value providing module 141 calculates the standard values of the coke oven gas pressure and the air pressure corresponding to all the burners 110 according to the linear ratio of the coke oven gas pressure and the air pressure linear ratio of the burner 110. For example, in this embodiment, the linear ratio of coke oven gas pressure is 0.42 and the linear ratio of air pressure is 0.038. When the standard temperature of exhaust gas is 850°C, the standard value of coke oven gas pressure is 357 mm water column (850*0.42) The standard value of air pressure is 32.3 mm H2O (850*0.038).

After step 310, step 320 is next performed to obtain the current pressure value of coke oven gas, the current pressure value of air and the current temperature value of exhaust gas of each burner 110. As shown in FIG. 2, the embodiment of the present invention obtains the current pressure value of coke oven gas, the current pressure value of air and the current temperature value of exhaust gas of all burners 110 through the monitoring device 120. Then, a coke oven gas pressure monitoring step 330, an air pressure monitoring step 340, and an exhaust gas temperature monitoring step are respectively performed 350, to monitor the operation of each burner 110 to determine whether an abnormality occurs.

其中，i=1,2...,N，N為燃燒器110的個數，S _C 為燃燒器之焦爐氣壓力標準指標；C _i 為第i個燃燒器之焦爐氣目前壓力值；

為燃燒器之焦爐氣壓力標準值。 Please refer to FIG. 4, which is a schematic flowchart of the coke oven gas pressure monitoring step 330. In the coke oven gas pressure monitoring step 330, step 331 is first performed to calculate the square value of the coke oven gas pressure difference between the current coke oven gas pressure value of each burner 110 and the standard value of the coke oven gas pressure. Next, step 332 is performed to sum the squared value of coke oven gas pressure difference of each burner 110 to obtain a sum of squared coke oven gas pressure difference. Then, proceed to step 333 to divide the sum of the square of the coke oven gas pressure difference by the number of burners 110 and then open the root sign to obtain the standard index of coke oven gas pressure corresponding to the burner 110. Coke oven gas pressure standard indicators S _C may be expressed as follows:

Among them, i=1,2..., N, N is the number of burners 110, S _C is the standard index of coke oven gas pressure of the burner; C _i is the current pressure value of the coke oven gas of the i-th burner ;

It is the standard value of the coke oven gas pressure of the burner.

-S _C ，上限為

+S _C 。 Then, step 334 is performed to calculate the standard pressure range of coke oven gas according to the standard value of coke oven gas pressure and the standard index of coke oven gas pressure. In one embodiment of the present invention, the lower limit of the standard pressure range of the coke oven gas corresponding to the burner 110 is

-S _C , the upper limit is

+ S _C.

Next, step 335 is performed to determine whether the current pressure value of the coke oven gas of each burner 110 is within the standard pressure range of the coke oven gas. If it is within the standard pressure range of coke oven gas, it is determined that the burner 110 is operating normally, otherwise it is determined that abnormal operation may occur. In one embodiment of the invention, when a fire After it is determined that the burner 110 may be abnormal, proceed to step 336 to use the coke oven gas pressure monitoring module 142 to issue a warning message to remind the on-site operator that the burner 110 coke oven gas supply is not within the standard range. Operator attention. When the current pressure value of the coke oven gas of the burner 110 is not within the standard pressure range of the coke oven gas and lasts for a period of time (for example, half an hour), the coke oven gas pressure monitoring module 142 further sends a warning message to the on-site operator, In order to inform on-site operators that the burner 110 has abnormality.

其中，S _A 為燃燒器之空氣壓力標準指標；A _i 為第i個燃燒器之空氣目前壓力值；

為燃燒器之空氣壓力標準值。 Please refer to FIG. 5, which is a schematic flowchart of the air pressure monitoring step 340. In the air pressure monitoring step 340, step 341 is first performed to calculate the square of the difference in air pressure between the current air pressure value of each burner 110 and the standard air pressure value. Next, step 342 is performed to sum the squared air pressure difference of each burner 110 to obtain a sum of squared air pressure differences. Next, step 343 is performed to divide the sum of squares of the air pressure difference by the number of the burners 110, and then open the root sign to obtain the standard index of the air pressure corresponding to the burner 110. S _A standard air pressure indicators may be expressed as follows:

Among them, S _A is the standard index of the air pressure of the burner; A _i is the current air pressure value of the i-th burner;

It is the standard value of the air pressure of the burner.

-S _A ，上限為

+S _A 。 Then, step 344 is performed to calculate the standard air pressure range based on the standard air pressure value and the standard air pressure index. In an embodiment of the invention, the lower limit of the standard air pressure range corresponding to the burner 110 is

-S _A , the upper limit is

+ S _A.

Next, step 345 is performed to determine whether the current air pressure value of each burner 110 is within the standard air pressure range. If it is within the standard air pressure range, it is determined that the burner 110 is operating normally, otherwise, it is determined that abnormal operation may occur. In one embodiment of the present invention, when a burner 110 is determined to be abnormal, step 346 is performed to use the air pressure monitoring module 144 to issue a warning message to remind the field operator that the burner 110 is supplied with air Not within the standard range, please pay attention to on-site operators. When the current pressure value of the air of the burner 110 is not within the standard air pressure range for a period of time (for example, half an hour), the air pressure monitoring module 144 further sends a warning message to the field operator to inform the field operator of this An abnormality has occurred in the burner 110.

其中，S _T 為廢氣溫度標準指標；T _i 為第i個燃燒器之廢氣目前溫度值；

為燃燒器之廢氣溫度標準值。 Please refer to FIG. 6, which is a schematic flowchart of the exhaust gas temperature monitoring step 350. In the exhaust gas temperature monitoring step 350, step 351 is first performed to calculate the square value of the exhaust gas temperature difference between the current exhaust gas temperature value of each burner 110 and the exhaust gas temperature standard value. Next, step 352 is performed to sum the square of the exhaust gas temperature difference of each burner 110 to obtain a sum of squares of the exhaust gas temperature difference. Next, step 353 is performed to divide the sum of the squares of the exhaust gas temperature differences by the number of the burners 110, and then open the root sign to obtain the exhaust gas temperature standard index corresponding to the burner 110. The exhaust gas temperature standard index S _T can be expressed as follows:

Among them, S _T is the standard index of exhaust gas temperature; T _i is the current temperature value of the exhaust gas of the ith burner;

It is the standard value of the exhaust gas temperature of the burner.

-S _T ，上限為

+S _T 。 Then, step 354 is performed to calculate the exhaust gas standard temperature range based on the exhaust gas temperature standard value and the exhaust gas temperature standard index. In one embodiment of the present invention, the lower limit of the standard temperature range of the exhaust gas corresponding to the burner 110 is

-S _T , the upper limit is

+ S _T.

Next, step 355 is performed to determine whether the current temperature value of the exhaust gas of each burner 110 is within the standard temperature range of the exhaust gas. If it is within the standard temperature range of the exhaust gas, it is determined that the burner 110 is operating normally, otherwise, it is determined that abnormal operation may occur. In one embodiment of the present invention, when a burner 110 is determined to be abnormal, step 356 is performed to use the exhaust gas temperature monitoring module 143 to issue a warning message to remind on-site operators of the exhaust gas temperature of the burner 110 Not within the standard range, please pay attention to on-site operators. When the current temperature value of the exhaust gas of the burner 110 is not within the standard temperature range of the exhaust gas and continues for a period of time (for example, half an hour), the exhaust gas temperature monitoring module 143 further sends a warning message to the on-site operator to inform the on-site operator of this An abnormality has occurred in the burner 110.

Although the present invention has been disclosed in several embodiments as above, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field to which the present invention belongs can be regarded as various without departing from the spirit and scope of the present invention. Changes and retouching, therefore, the scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

300‧‧‧Burner monitoring method

301‧‧‧Step

302‧‧‧Step

310~350‧‧‧Step

Claims (10)

A burner monitoring method for monitoring a plurality of burners, wherein the burner monitoring method includes: performing a trial operation step to obtain a linear ratio of coke oven gas pressure, wherein the linear ratio of coke oven gas pressure is The ratio of the historical pressure value of the coke oven gas of one of the burners to the historical temperature value of the exhaust gas; providing a standard value of the temperature of the exhaust gas of each of these burners; using a plurality of monitoring devices to obtain the coke of each of these burners Coke Oven Gas (COG) current pressure value and an exhaust gas current temperature value; according to the linear value of the exhaust gas temperature standard value of each of the burners and the coke oven gas pressure to provide a standard value of coke oven gas pressure; Calculate the square value of the coke oven gas pressure difference between the current pressure value of the coke oven gas of each of the burners and the standard value of the coke oven gas pressure; add the square value of the coke oven gas pressure difference of each of the burners To obtain the sum of the square of the coke oven gas pressure difference of each of these burners; divide the sum of the square of the coke oven gas pressure difference of each of these burners by the number of these burners, and then open the root sign, To obtain a standard index of the coke oven gas pressure of each of the burners; calculate one of each of the burners according to the standard value of the coke oven gas pressure of each of the burners and the standard index of the coke oven gas pressure Standard pressure range of coke oven gas; determine whether the current pressure value of the coke oven gas of each of the burners is within the corresponding standard pressure range of the coke oven gas; and the current coke oven gas of one of the burners The pressure value is not in the phase When it is within the standard pressure range of the coke oven gas, a first warning message is issued. The burner monitoring method as described in item 1 of the patent application scope, wherein a linear ratio of air pressure can be further obtained by performing the trial operation step, wherein the linear ratio of air pressure is a pair of historical air pressure values of each of the burners The ratio of the historical temperature value of the exhaust gas, the burner monitoring method further includes: using the monitoring devices to obtain a current air pressure value of each of the burners; according to the standard value of the exhaust gas temperature of each of the burners The air pressure is linearly proportional to provide a standard value of air pressure; calculate the square of the difference in air pressure between the current pressure value of each of the burners and the standard value of air pressure; convert the air of each of the burners Sum the squared pressure differences to obtain the sum of the squared air pressure differences for each of the burners; divide the sum of the squared air pressure differences for each of the burners by the number of the burners, and then open the root sign To obtain an air pressure standard index for each of the burners; calculate an air standard pressure range for each of the burners according to the air pressure standard value and the air pressure standard index for each of the burners; Determine whether the current air pressure value of each of the burners is within the corresponding standard air pressure range; and when the current air pressure value of one of the burners is not within the corresponding standard air pressure range , Issue a second warning message. The burner monitoring method as described in item 2 of the patent application scope further includes: calculating the square value of the difference between the current temperature value of the exhaust gas of each of the burners and the exhaust gas temperature standard value of the exhaust gas temperature standard value; The sum of the exhaust gas temperature difference squares of the burners is added to obtain the sum of the square of the exhaust gas temperature difference of each of the burners; the sum of the square of the exhaust gas temperature differences of each of the burners is divided by the burners Count and reopen the root number to obtain one of the exhaust gas temperature standard indicators of each of the burners; calculate one of each of the burners according to the exhaust gas temperature standard value and the exhaust gas temperature standard index of each of the burners Exhaust gas standard temperature range; determine whether the current temperature value of the exhaust gas of each of the burners is within the corresponding exhaust gas standard temperature range; and when the current temperature value of the exhaust gas of one of the burners is not within the corresponding exhaust gas When the standard temperature range is reached, a third warning message is issued. The burner monitoring method as described in item 3 of the patent application scope further includes: transmitting the first warning message, the second warning message, and/or the third warning message to a field operator. The burner monitoring method as described in item 3 of the patent application scope, in which The lower limit of the range of the standard pressure of the coke oven gas is the difference between the standard value of the pressure of the coke oven gas and the standard index of the pressure of the coke oven gas, and the upper limit of the range of the standard pressure of the coke oven gas is the standard value of the pressure of the coke oven gas and the pressure of the coke oven gas The sum of the force standard indicators; the lower limit of the air standard pressure range is the difference between the air pressure standard value and the air pressure standard index, and the upper limit of the air standard pressure range is the sum of the air pressure standard value and the air pressure standard index; And the lower limit of the exhaust gas standard temperature range is the difference between the exhaust gas temperature standard value and the exhaust gas temperature standard index, and the upper limit of the exhaust gas standard temperature range is the sum of the exhaust gas temperature standard value and the exhaust gas temperature standard index. A burner monitoring system for monitoring a plurality of burners, wherein the burner monitoring system includes: a plurality of monitoring devices for obtaining the current pressure value of a coke oven gas and the current temperature value of an exhaust gas for each of the burners And a server electrically connected to the monitoring devices, wherein the server includes: a standard value providing module for: providing a standard value of the exhaust gas temperature of each of the burners and a coke oven gas pressure Linear ratio, wherein the linear ratio of coke oven gas pressure is the ratio of the historical pressure value of a coke oven gas to the historical temperature value of an exhaust gas for each of the burners; and according to the standard value of the exhaust gas temperature for each of the burners and The coke oven gas pressure is linearly proportional to provide a standard value of coke oven gas pressure; and A coke oven gas pressure monitoring module is used to: calculate the square value of the coke oven gas pressure difference between the current pressure value of the coke oven gas of each of the burners and the standard value of the coke oven gas pressure; The sum of the square values of the coke oven gas pressure differences of the burners is obtained to obtain the sum of the square sum of the coke oven gas pressure differences of each of these burners; the sum of the square sum of the coke oven gas pressure differences of each of these burners is divided by The number of the burners, and then open the root number to obtain a standard index of the coke oven gas pressure of each of the burners; according to the standard value of the coke oven gas pressure of each of the burners and the coke oven gas pressure Use standard indicators to calculate the standard pressure range of each coke oven gas for each of these burners; determine whether the current pressure value of the coke oven gas for each of these burners is within the corresponding standard pressure range of the coke oven gas; and when the When the current pressure value of the coke oven gas of one of the burners is not within the corresponding standard pressure range of the coke oven gas, a first warning message is issued. The burner monitoring system as described in item 6 of the patent application scope, wherein the monitoring devices are further used to obtain a current air pressure value of each of the burners, and the standard value providing module is further used to provide an air pressure A linear ratio, and a standard value of air pressure is provided according to the standard value of the exhaust gas temperature of each of the burners and the linear ratio of the air pressure, wherein the linear ratio of the air pressure is a historical air pressure value of each of the burners For the ratio of the historical temperature value of the exhaust gas, the server further includes an air pressure monitoring module. The air pressure monitoring module is used to: Calculate the square of the air pressure difference between the current pressure value of each of the burners and the standard value of the air pressure; add up the square of the air pressure difference of each of the burners to obtain each of the burners The sum of the square of the air pressure difference of one of the burners; divide the sum of the square of the air pressure difference of each of the burners by the number of the burners, and then open the root sign to obtain the air pressure of each of the burners Standard index; calculate an air standard pressure range for each of the burners according to the air pressure standard value of each of the burners and the air pressure standard index; determine the current pressure value of the air for each of the burners Whether it is within the corresponding standard air pressure range; and when the current pressure value of one of the burners is not within the corresponding standard air pressure range, a second warning message is issued. The burner monitoring system as described in item 7 of the patent application scope, wherein the server further includes an exhaust gas temperature monitoring module, the exhaust gas temperature monitoring module is used to: calculate the current temperature value of the exhaust gas for each of the burners The square value of the exhaust gas temperature difference with one of the standard values of the exhaust gas temperature; the sum of the square values of the exhaust gas temperature difference of each of these burners is obtained to obtain the sum of the square of the exhaust gas temperature difference of each of these burners; The sum of the square of the exhaust gas temperature difference of the burners is divided by the number of the burners, and then the root sign is obtained to obtain a standard index of the exhaust gas temperature of each of the burners; Calculate an exhaust gas standard temperature range for each of the burners according to the exhaust gas temperature standard value and the exhaust gas temperature standard index for each of the burners; determine whether the current temperature value of the exhaust gas for each of the burners is in the corresponding Within the standard temperature range of the exhaust gas; and when the current temperature value of the exhaust gas of one of the burners is not within the corresponding standard temperature range of the exhaust gas, a third warning message is issued. The burner monitoring system as described in item 7 of the patent application scope, wherein each of the monitoring devices includes: a thermocouple for measuring the current temperature value of the exhaust gas corresponding to one of the burners; a first A pressure sensor for measuring the current pressure value of the coke oven gas corresponding to the burners; a second pressure sensor for measuring the corresponding pressure of the burners Current air pressure value; a control module electrically connected to the thermocouple, the first air pressure sensor and the second air pressure sensor to receive the current temperature value of the exhaust gas and the current pressure value of the coke oven gas And the current pressure value of the air, and quantify the current temperature value of the exhaust gas, the current pressure value of the coke oven gas and the current pressure value of the air; and a wireless transmission module electrically connected to the control module for transmitting the The current temperature value of the exhaust gas, the current pressure value of the coke oven gas and the current pressure value of the air are sent to the server. The burner monitoring system as described in item 6 of the patent application scope, wherein the server is a gateway.

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