JP6834407B2 - Burner control device control method and burner control device - Google Patents

Description

The present invention relates to a control method for a burner control device and a burner control device.

Electric power companies supply electricity on a daily basis according to electricity demand by appropriately combining the electricity generated by nuclear power plants, hydroelectric power plants, thermal power plants, and the like.

Among these, thermal power plants are operated so as to increase the amount of power generation when the daytime power demand increases because it is relatively easy to increase or decrease the amount of power generation. For this reason, in thermal power plants, the ignition and extinguishing of burners for burning fuel in the furnace are repeated every day.

Then, a technique for appropriately igniting such a fuel has been developed (see, for example, Patent Document 1).

Jikkai Sho 64-54652

On the other hand, thermal power plants have higher operating costs than other power plants, so cost reduction is strongly required.

Therefore, in a situation where the burner is repeatedly ignited and extinguished as described above, a technique that reduces the operating cost and makes it less likely to cause a failure is desired.

The present invention has been made in view of the above problems, and one of the present inventions is to provide a burner control device control method and a burner control device capable of reducing the operating cost and improving the reliability of a thermal power plant. The purpose.

The control method of the burner control device according to one side surface is to use the burner in the furnace in which a plurality of burner groups including a plurality of burners provided in the circumferential direction are provided in a direction orthogonal to the circumferential direction. A control method for a burner control device to be controlled, wherein each burner includes a main burner and an igniter arranged adjacent to the main burner to assist ignition of the main burner. When the burner control device ignites the first main burner in the first burner group, if none of the main burners is burned in all the burner groups below the first burner group. When all the igniters of the first burner group are ignited and the first main burner is ignited, one of the main burners burns in any of the burner groups below the first burner group. If so, only the first igniter arranged adjacent to the first main burner is ignited.

In addition, the problems disclosed in the present application and the solutions thereof will be clarified by the description in the column of the mode for carrying out the invention, the description in the drawings, and the like.

According to the present invention, it is possible to reduce the operating cost and improve the reliability of a thermal power plant.

It is a figure which shows the structure of the fireplace which concerns on this embodiment. It is a figure which shows the structure of the fireplace which concerns on this embodiment. It is a figure which shows the structure of the fireplace which concerns on this embodiment. It is a figure which shows the structure of the burner which concerns on this embodiment. It is a figure which shows the structure of the burner control device which concerns on this embodiment. It is a flowchart which shows the control method of the burner control device which concerns on this embodiment. It is a time chart which shows the control method of the burner control device which concerns on this embodiment. It is a time chart which shows the control method of the burner control device which concerns on this embodiment. It is a flowchart which shows the control method of the burner control device which concerns on this embodiment. It is a time chart which shows the control method of the burner control device which concerns on this embodiment. It is a time chart which shows the control method of the burner control device which concerns on this embodiment.

The description of the present specification and the accompanying drawings will clarify at least the following matters.

= Fireplace =
1A, 1B, and 1C show the fireplace 500 according to the embodiment of the present invention. The fireplace 500 according to the present embodiment is a corner firing type combustion furnace used for a boiler (not shown) operating in a thermal power plant and using petroleum as fuel.

As shown in FIGS. 1A, 1B, and 1C, the fireplace 500 according to the present embodiment has a square cylinder shape (square cylinder), and a plurality of fireplaces 500 in the circumferential direction (four in the present embodiment) on the inner wall of the fireplace 500. Burners 200 are provided, and a plurality of burner groups composed of these plurality of burners 200 are provided in a direction orthogonal to the circumferential direction (five in the present embodiment). Specifically, burners 200 are installed in multiple stages (five stages in this embodiment) at each corner of the inner wall of the fireplace 500. Of course, the burner 200 may be provided on the flat surface portion of the inner wall of the fireplace 500.

Then, when a flame is radiated from the burner 200 in the fireplace 500, as shown in FIGS. 1A and 1B, a fireball 400 is formed in the fireplace 500, and gas is discharged from the discharge port at the upper part of the fireplace 500. ..

In the present embodiment, when it is not necessary to individually specify the burner 200 in the furnace 500, it is simply referred to as the burner 200, but when the burner 200 in the fireplace 500 is individually specified, it is shown in FIG. 1C. As described above, the symbols A to D that specify each corner of the fireplace 500 and the numbers 1 to 5 that specify the installation position of the burner 200 in the height direction (the top row is 1 and the bottom row is 5) are combined. To. For example, the burner 200 installed in the third stage from the top of the corner A is described as the burner 200A3.

Further, as shown in FIGS. 1A, 1B, and 1C, in the present embodiment, the directions in which the four wall surfaces of the fireplace 500 are provided are the x-axis direction and the y-axis direction, and the vertical direction is the z-axis direction.

= Burner =
As shown in FIG. 2, the burner 200 includes a main burner 210, an igniter 220, and a frame scanner 230.

The main burner 210 injects fuel into the fireplace 500 from a tubular injection nozzle.

The igniter 220 is provided adjacent to the main burner 210 (at the bottom in this embodiment) to assist ignition and extinguishing of the main burner 210. The igniter 220 also injects fuel into the fireplace 500 from a tubular injection nozzle. The ignition of the igniter 220 is performed by, for example, a spark of a spark plug (not shown).

The frame scanner 230 is a detector that detects the flame state (color, shape, temperature, etc.) of the main burner 210.

= Burner controller =
The ignition and extinguishing of each burner 200 in the fireplace 500 is controlled by the burner control device 100.

As shown in FIG. 3, the burner control device 100 acquires signals (temperature, color, image, etc.) from each frame scanner 230 to determine the combustion state of each main burner 210, and is a manual or other control device. The ignition and fire extinguishing of each main burner 210 and each igniter 220 are controlled according to the ignition signal and the fire extinguishing signal transmitted from.

The burner control device 100 is composed of, for example, a computer or sequencer equipped with a microprocessor (not shown) and executing a predetermined control program, or a control device in which control logic is constructed by a relay circuit.

The burner control device 100 has each functional block of the first control unit 110, the second control unit 120, the third control unit 130, and the fourth control unit 140 realized by the microprocessor, the relay circuit, and the like.

Although the details will be described later, when the first control unit 110 ignites the main burner 210 in a certain burner group in the furnace 500, for example, the first main burner 210 in the first burner group, the first burner group If none of the main burners 210 are burning in all the burner groups below, all the igniters 220 of the first main burner group are ignited.

Further, when the second control unit 120 ignites the first main burner 210, if any of the main burners 210 is burning in any of the burner groups below the first burner group, the second control unit 120 may burn. Only the first igniter 220 arranged adjacent to the first main burner 210 is ignited.

When the third control unit 130 extinguishes the first main burner 210 in the first burner group, none of the main burner 210 is burned in all the burner groups below the first burner group. In the case, all the igniters 220 of the first burner group are ignited.

Further, when extinguishing the fire of the first main burner 210, the fourth control unit 140 determines that any of the main burners 210 is burning in any of the burner groups below the first burner group. Only the first igniter 220 located adjacent to the first main burner 210 is ignited.

The burner control device 100 manages which main burner 210 is currently burning by storing the ignited main burner 210 in a memory (not shown). Alternatively, the burner control device 100 may know which main burner 210 is currently burning by referring to the data from the frame scanner 230.

Alternatively, the burner control device 100 does not determine whether or not each main burner 210 is burning, and the first control unit 110, the second control unit 120, the third control unit 130, and the fourth control unit 140. The firing order and the fire extinguishing order of each main burner 210 may be pre-constructed as logic so that the control is performed according to each function of the above.

= Control method of burner control device =
Next, the flow of control executed by the burner control device 100 according to the present embodiment will be described with reference to FIGS. 4 to 9.

<Ignition control>
First, FIG. 4 shows a flowchart when the burner control device 100 ignites the burner 200 in the fireplace 500.

As shown in FIG. 4, the burner control device 100 according to the present embodiment first ignites four burners 200A3, burner 200B3, burner 200C3, and burner 200D3 in the burner group installed in the third stage from the top in order. (S1000, 1st step). The firing order of these burners 200A3 to D3 will be described later.

Subsequently, the burner control device 100 sequentially ignites the four burners 200A2 to 200D2 of the burner group installed in the second stage from the top (S1010, second step).

After that, the burner control device 100 similarly includes the four burners 200A4 to 200D4 (S1020, third step) of the burner group installed in the fourth stage from the top, and the burner group installed in the first stage from the top. The four burners 200A1 to 200D1 (S1030, 4th step) and the four burners 200A5 to 200D5 (S1040, 5th step) of the burner group installed in the fifth stage from the top are sequentially ignited.

In this way, the flame is first radiated from the burner 200 in the middle stage of the furnace 500 (third stage in this embodiment), and then the ignition range is expanded to the burner 200 in the upper and lower stages one by one. By doing so, it is possible to stabilize the formation and growth of the fireball 400 in the fireplace 500 and prevent misfire at the start of operation of the boiler.

Next, the ignition method of the burner 200 in the furnace 500 will be described in more detail with reference to FIGS. 5 and 6.

FIG. 5 is a diagram showing the ignition sequences of the burners 200A3 to D3 in the third stage from the top, the burners 200A4 to D4 in the fourth stage, and the burners 200A5 to D5 in the fifth stage collectively. Further, FIG. 6 is a diagram showing the ignition sequences of the burners 200A2 to D2 of the second stage from the top and the burners 200A1 to D1 of the first stage collectively.

As described above, the burner control device 100 according to the present embodiment first ignites the burner 200 of the burner group in the third stage from the top (first step).

At this time, as shown in FIG. 5, the burner control device 100 is a set installed at corners A and C installed at opposite positions in the same burner group in the fireplace 500 at the timing of T1. Ignite the main burners 210A3 and C3. That is, fuel is injected from the main burners 210A3 and C3.

At this time, the burner control device 100 ignites the igniters 220A3 and C3 ((* 1) and (* 3) in FIG. 5). The ignition of the igniters 220A3 and C3 is performed by injecting fuel and generating sparks from spark plugs (not shown) as described above.

In this way, the flames of the igniters 220A3 and C3 serve as a pilot fire, the fuel injected from the main burners 200A3 and C3 burns, and the main burners 200A3 and C3 ignite.

At this time, the burner control device 100 according to the present embodiment also ignites the igniters 220B3 and D3 when the main burners 210A3 and C3 are ignited, as shown in (* 2) and (* 4) of FIG. ing. That is, the burner control device 100 ignites all the igniters 220A3 to D3 belonging to the burner group in the third stage from the top.

In such an embodiment, the fuel scattered widely from the main burners 210A3 and C3 into the fireplace 500 is emitted from the igniters 220B3 and D3 as well as the igniters 220A3 and C3 provided under the main burners 210A3 and C3. Since it can be burned by the fuel, it helps the early formation of the fireball 400 in the fireplace 500, prevents misfire of the main burners 210A3 and C3, and reduces the waste of fuel (unburned fuel), which is efficient. Can be ignited.

After that, the burner control device 100 injects fuel from a set of main burners 210B3 and D3 installed in the corners B and D at the timing of T2 after a lapse of a predetermined time. The igniters 220A3 to D3 continue to burn as they are ((* 5) to (* 8) in FIG. 5).

Then, after the lapse of a predetermined time, the burner control device 100 stops the injection of fuel from the igniters 220A3 to D3 at the timing of T3, and extinguishes the igniters 220A3 to D3. As a result, the burner control device 100 completes the ignition of the burner 200 of the burner group in the third stage from the top.

Next, the burner control device 100 ignites the burner 200 of the burner group in the second stage from the top (second step).

At this time, as shown in FIG. 6, the burner control device 100 is a set of corners A and C installed at opposite positions in the same burner group in the fireplace 500 at the timing of T4. Ignite the main burners 210A2 and C2. That is, fuel is injected from the main burners 210A2 and C2.

At this time, the burner control device 100 ignites the igniters 220A2 and C2 ((* 9) and (* 11) in FIG. 5). The ignition of the igniters 220A2 and C2 is performed by injecting fuel and generating sparks from spark plugs (not shown), as in the case of the third stage.

In this way, the flames of the igniters 220A2 and C2 serve as a pilot fire, and the fuel injected from the main burners 200A2 and C2 burns.

At this time, the burner control device 100 is different from the case of the third stage, and as shown in (* 10) (* 12) of FIG. 6, when igniting the main burners 210A2 and C2, the igniters 220B2 and D2 Does not ignite. That is, the burner control device 100 ignites only the igniter 220A2 provided below the main burner 210A2 and the igniter 220C2 provided below the main burner 210C2.

In this case, fuel is scattered over a wide range from the main burners 210A2 and C2 into the fireplace 500, but since the lower third stage main burners 210A3 to D3 are already burning, the main burners 210A2 and C2 are inside the fireplace 500. The fuel scattered on the main burners 210A2 and C2 can be burned not only by the igniters 220A2 and C2 provided below the main burners 210A2 and C2 but also by the flames radiated from the main burners 210A3 to D3 in the third stage.

Since it is not necessary to inject fuel from the second stage igniters 220B2 and D2 in such an embodiment, it is possible to eliminate waste of fuel and reduce the operating cost of the thermal power plant. Further, since the operating time of the igniters 220B2 and D2 is reduced, the failure frequency of the igniters 220B2 and D2 is reduced. Therefore, it is possible to improve the reliability and extend the life of the igniters 220B2 and D2.

After that, the burner control device 100 injects fuel from a set of main burners 210B2 and D2 installed in the corners B and D at the timing of T5 after a lapse of a predetermined time. Then, the burner control device 100 extinguishes the igniters 220A2 and C2 at this timing ((* 13) and (* 15) in FIG. 6) and ignites the igniters 220B2 and D2 ((* 14) and (* 14) in FIG. 6). * 16)). That is, the burner control device 100 ignites only the igniter 220B2 provided below the main burner 210B2 and the igniter 220D2 provided below the main burner 210D2. Since it is not necessary to inject fuel from the second stage igniters 220A2 and C2 in such an embodiment, it is possible to eliminate waste of fuel and reduce the operating cost of the thermal power plant.

Then, after the lapse of a predetermined time, the burner control device 100 stops the injection of fuel from the igniters 220B2 and D2 at the timing of T6, and extinguishes the igniters 220A2 to D2. In this way, the burner control device 100 completes the ignition of the burner 200 of the second stage burner group.

As described above, the burner control device 100 according to the present embodiment ignites all the igniters 220A3 to D3 in the third stage when igniting the burners 200A3 to D3 in the third stage from the top (first step). However, when igniting the burners 200A2 to D2 of the burner group in the second stage from the top (second step), only the igniter 220 provided under the main burner 210 to be ignited is ignited.

That is, when the burner control device 100 according to the present embodiment ignites the main burner 210, any of the main burners in all the burner groups in the stage lower than the stage (first stage) to which the main burner 210 belongs. If the burner 210 is also not burning, it ignites all the igniters 220 belonging to this first stage, but in any of the burner groups in any of the stages below the first stage, any main burner 210 Is burning, it ignites only the igniter 220 provided at the bottom of the igniting main burner 210.

According to such an aspect, the fuel consumption by the igniter 220 can be reduced, and the operating cost of the thermal power plant can be reduced. Further, since the operating time of the igniter 220 is reduced, it is possible to reduce the failure frequency of the igniter 220. Therefore, it is possible to improve the reliability and the life of the igniter 220.

After that, the burner control device 100 is installed in the four burners 200A4 to D4 (S1020, third step) installed in the fourth stage from the top, and in the first stage from the top, in the same manner as in the time charts of FIGS. 4 to 6. The four burners 200A1 to D1 (S1030, fourth step) and the four burners 200A5 to D5 (S1040, fifth step) installed in the fifth stage from the top are sequentially ignited.

<Fire extinguishing control>
Next, FIG. 7 shows a flowchart when the burner control device 100 extinguishes the burner 200 in the fireplace 500.

As shown in FIG. 7, the burner control device 100 according to the present embodiment extinguishes the burner 200 of the burner group in each stage in the reverse order of the ignition.

That is, first, the four burners 200A5 to D5 of the burner group installed in the fifth stage from the top are extinguished in sequence (S2000, 6th step). The fire extinguishing order of these burners 200A5 to D5 will be described later.

Subsequently, the burner control device 100 sequentially extinguishes the four burners 200A1 to 200D1 of the burner group installed in the first stage from the top (S2010, 7th step).

After that, the burner control device 100 similarly includes the four burner groups 200A4 to 200D4 (S2020, 8th step) of the burner group installed in the fourth stage from the top, and the burner group installed in the second stage from the top. The four burners 200A2 to 200D2 (S2030, 9th step) and the four burners 200A3 to 200D3 (S2040, 10th step) of the burner group installed in the third stage from the top are extinguished in sequence.

In this way, the fire is extinguished in order from the burner 200 (fifth stage, first stage in this embodiment) of the upper and lower ends of the furnace 500, and the burner group in the center stage (third stage in this embodiment). By continuing the combustion of the burner 200 to the end, it is possible to prevent the fireball 400 from disappearing in the fireplace 500 and prevent an unexpected misfire during the operation of stopping the operation of the boiler.

Next, a method of extinguishing the burner 200 in the furnace 500 will be described in more detail with reference to FIGS. 8 and 9.

FIG. 8 is a diagram showing the fire extinguishing sequences of the burners 200A3 to D3 in the third stage from the top, the burners 200A4 to D4 in the fourth stage, and the burners 200A5 to D5 in the fifth stage. Further, FIG. 9 is a diagram showing the fire extinguishing sequences of the burners 200A2 to D2 in the second stage from the top and the burners 200A1 to D1 in the first stage collectively.

As described above, the burner control device 100 according to the present embodiment first extinguishes the fire of the burner 200 in the fifth stage from the top (sixth step).

At this time, as shown in FIG. 8, the burner control device 100 is first set at the timing of T7, which is installed in the corner B and the corner D installed at opposite positions in the same burner group in the fireplace 500. Extinguish the main burners 210B5 and D5. That is, the fuel injection is stopped from the main burners 210B5 and D5. Then, when the fuel injection is stopped, the burner control device 100 performs a control called purging in which the fuel remaining in the nozzles of the main burners 210B5 and D5 is blown off by air.

Then, in order to burn the fuel blown into the furnace 500 by this purge, the burner control device 100 ignites the igniters 220B5 and D5 provided below the main burners 210B5 and D5 ((* 18) in FIG. 8 (* 18). ) (* 20)).

However, the fuel blown off by the purge from the main burners 210B5 and D5 diffuses widely into the fireplace 500, so that the burner control device 100 uses the igniters 220A5 and C5 as shown in (* 17) (* 19) of FIG. I also try to ignite. That is, the burner control device 100 ignites all the igniters 220A5 to D5 belonging to the fifth stage from the top.

In such an embodiment, the fuel scattered widely into the fireplace 500 by purging from the main burners 210B5 and D5 is radiated not only from the igniters 220B5 and D5 provided under the main burners 210B5 and D5 but also from the igniters 220A5 and C5. Since it can be burned by a flame, it is possible to prevent unburned fuel from remaining in the furnace 500.

After that, the burner control device 100 also extinguishes a set of main burners 210A5 and C5 installed in the corners A and C at the timing of T8 after the elapse of a predetermined time. Of course, the main burners 210A5 and C5 are also purged. At this time, the burner control device 100 continuously burns the igniters 220A5 to D5 as they are ((* 21) to (* 24) in FIG. 8). Therefore, the fuel injected into the fireplace 500 by purging from the main burners 210A5 and C5 can also be burned by the igniters 220A5 to D5.

After that, the burner control device 100 stops the injection of fuel from the igniters 220A5 to D5 at the timing of T9 after the elapse of a predetermined time, and extinguishes the igniters 220A5 to D5. In this way, the burner control device 100 completes extinguishing the burner 200 of the fifth stage burner group.

Next, the burner control device 100 ignites the burner 200 of the burner group in the first stage from the top (7th step).

At this time, as shown in FIG. 9, the burner control device 100 is a set of corners B and D installed at opposite positions in the same burner group in the fireplace 500 at the timing of T10. Extinguish the main burners 210B1 and D1. That is, the fuel injection is stopped from the main burners 210B1 and D1. Then, when the fuel injection is stopped, the burner control device 100 purges the main burners 210B1 and D1.

Then, in order to burn the fuel blown into the furnace 500 by this purge, the burner control device 100 ignites the igniters 220B1 and D1 provided below the main burners 210B1 and D1 ((* 26) in FIG. 9). ) (* 28)).

However, unlike the fire extinguishing of the burner 200 in the fifth stage, the burner control device 100 according to the present embodiment is used when extinguishing the main burners 210B1 and D1 as shown in (* 25) (* 27) of FIG. The igniters 220A1 and C1 do not ignite. That is, the burner control device 100 ignites only the igniter 220B1 provided below the main burner 210B1 and the igniter 220D1 provided below the main burner 210D1.

In this case, fuel is scattered over a wide area from the main burners 210B1 and D1 into the fireplace 500 by purging, but the main burners 210A2 to D2, A3 to D3, and A4 to D4 of the second to fourth stages still burn. Therefore, the fuel scattered from the main burners 210B1 and D1 into the furnace 500 by purging is not only the igniters 220B1 and D1 provided under the main burners 210B1 and D1, but also the main burners 210A2 to the second to fourth stages. It is also burned by the flames emitted from D2, A3 to D3, and A4 to D4.

In such an embodiment, it is not necessary to inject fuel from the first stage igniters 220A1 and C1, so that it is possible to eliminate waste of fuel and reduce the operating cost of the thermal power plant. Further, since the operating time of the igniters 220A1 and C1 is reduced, the failure frequency of the igniters 220A1 and C1 can be reduced. Therefore, it is possible to improve the reliability and extend the life of the igniters 220A1 and C1.

After that, the burner control device 100 extinguishes a set of main burners 210A1 and C1 installed in the corners A and C at the timing of T11 after the elapse of a predetermined time. Of course, the main burners 210A1 and C1 are also purged. At this time, the burner control device 100 ignites the igniters 220A1 and C1 ((* 29) (* 31) in FIG. 9), but the igniters 220B1 and D1 do not ignite ((* 30) (* 32) in FIG. 9). ).

That is, the burner control device 100 ignites only the igniter 220A1 provided below the main burner 210A1 and the igniter 220C1 provided below the main burner 210C1. Therefore, it is not necessary to inject fuel from the igniters 220B1 and D1, so that it is possible to eliminate waste of fuel and reduce the operating cost of the thermal power plant.

After that, the burner control device 100 stops fuel injection from the igniters 220A1 and C1 at the timing of T12 after a lapse of a predetermined time, and completes extinguishing the burner 200 of the first stage burner group.

As described above, the burner control device 100 according to the present embodiment ignites all the igniters 220A5 to D5 in the fifth stage when extinguishing the burners 200A5 to D5 in the fifth stage from the top (sixth step). However, when extinguishing the burners 200A1 to D1 in the first stage from the top (7th step), only the igniter 220 provided at the lower part of the main burner 210 to extinguish the fire is ignited.

That is, when the main burner 210 is extinguished, the burner control device 100 according to the present embodiment has any main burner group in all the burner groups in the stage lower than the stage (second stage) to which the main burner 210 belongs. If the burner 210 is also not burning, all the igniters 220 belonging to this second stage are ignited, and in any of the burner groups in the lower stage than the second stage, any main burner 210 If it is burning, it ignites only the igniter 220 provided at the bottom of the main burner 210 to extinguish the fire.

According to such an aspect, the fuel consumption by the igniter 220 can be reduced, and the operating cost of the thermal power plant can be reduced. Further, since the operating time of the igniter 220 is reduced, it is possible to reduce the failure frequency of the igniter 220. Therefore, it is possible to improve the reliability and the life of the igniter 220.

After that, the burner control device 100 is installed in the four burners 200A4 to D4 (S2020, 8th step) installed in the fourth stage from the top, and in the second stage from the top according to the time charts of FIGS. 7 to 9. The four burners 200A2 to D2 (S2030, 9th step) and the four burners 200A3 to D3 (S2040, 10th step) installed in the third stage from the top are extinguished in sequence.

The control method of the burner control device 100 and the burner control device 100 according to the present embodiment has been described above. However, according to the control method of the burner control device 100 and the burner control device 100 according to the present embodiment, the operation of the thermal power plant is performed. It is possible to reduce costs and improve reliability.

It should be noted that the above-described embodiment is for facilitating the understanding of the present invention, and is not for limiting and interpreting the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention also includes an equivalent thereof.

For example, in the above embodiment, the burner 200 of each stage is ignited and extinguished for each set of burners 200 located on the diagonal line of the fireplace 500, but the burner 200 of each stage is ignited and extinguished one by one. Is also good.

Further, the fireplace 500 may have other shapes such as a cylinder and a hexagonal cylinder in addition to the square cylinder.

Further, the order of the steps for igniting or extinguishing the main burner 210 may be any other order as appropriate.

100 Boiler control device 110 1st control unit 120 2nd control unit 130 3rd control unit 140 4th control unit 200 Burner 210 Main burner 220 Igniter 230 Frame scanner 400 Fireball 500 Fireplace

Claims (8)

A group of burners composed of a plurality of burners provided in the circumferential direction on the inner wall of the furnace is a control method of a burner control device for controlling the burners in the furnace provided in a direction orthogonal to the circumferential direction.
Each of the burners comprises a main burner and an igniter arranged adjacent to the main burner to assist ignition of the main burner.
The burner control device is
When igniting the first main burner in the first burner group, if none of the main burners is burning in all the burner groups below the first burner group, the first burner Ignite all the igniters in the group,
When igniting the first main burner, if any of the main burners is burning in any of the burner groups below the first main burner group, the first main burner is adjacent to the first main burner. A control method of a burner control device, which ignites only a first igniter arranged therein. The control method for the burner control device according to claim 1.
The first burner group is arranged at a position facing the first main burner, a second main burner, a third main burner arranged at a position facing the first main burner, and a position facing the second main burner. Has a fourth main burner, which is
The burner control device is
Ignition is sequentially performed for each set of main burners installed at opposite positions in the fireplace.
When the first main burner and the third main burner are ignited, if none of the main burners is burned in all the burner groups below the first burner group, the first main burner is ignited. Ignite all igniters in the burner group,
In any of the burner groups below the first burner group, when any of the main burners is burning, the first igniter and the first igniter arranged adjacent to the first main burner. 3 A control method of a burner control device, characterized in that only a third igniter arranged adjacent to the main burner is ignited. The control method for the burner control device according to claim 1 or 2.
Five burner groups are provided in the fireplace.
The burner control device is
The first step of sequentially igniting multiple main burners in the third burner group from the top,
After the first step, a second step of sequentially igniting a plurality of main burners in the second burner group from the top,
After the second step, a third step of sequentially igniting a plurality of main burners in the fourth burner group from the top,
After the third step, a fourth step of sequentially igniting a plurality of main burners in the first burner group from the top,
After the fourth step, a fifth step of sequentially igniting a plurality of main burners in the fifth burner group from the top,
A control method for a burner control device, which comprises. A group of burners composed of a plurality of burners provided in the circumferential direction on the inner wall of the furnace is a control method of a burner control device for controlling the burners in the furnace provided in a direction orthogonal to the circumferential direction.
Each of the burners comprises a main burner and an igniter arranged adjacent to the main burner to assist in extinguishing the fire of the main burner.
The burner control device is
When extinguishing the first main burner in the first burner group, the fuel remaining in the first main burner is blown into the furnace after the injection of fuel from the first main burner is stopped, and the first In all the burner groups below the burner group, if none of the main burners is burned, all the burners in the first burner group are burned in order to burn the fuel blown off from the first main burner. Ignite the igniter for a specified period of time and
When extinguishing the first main burner, if any of the main burners in any of the burner groups below the first main burner group is burning, it is blown off from the first main burner. A method for controlling a burner control device, which ignites only a first igniter adjacent to the first main burner for a predetermined time in order to burn the fuel. The control method for the burner control device according to claim 4.
The first burner group is arranged at a position facing the first main burner, a second main burner, a third main burner arranged at a position facing the first main burner, and a position facing the second main burner. Has a fourth main burner, which is
The burner control device is
Fire extinguishing is sequentially performed for each set of main burners installed at opposite positions in the fireplace.
When extinguishing the fire of the first main burner and the third main burner, if none of the main burners is burning in all the burner groups below the first burner group, the first Ignite all the igniters of the burner group,
In any of the burner groups below the first burner group, when any of the main burners is burning, the first igniter and the first igniter arranged adjacent to the first main burner. 3 A control method of a burner control device, characterized in that only a third igniter arranged adjacent to the main burner is ignited. The control method for the burner control device according to claim 4 or 5.
Five burner groups are provided in the fireplace.
The burner control device is
The sixth step of extinguishing multiple main burners in the fifth burner group from the top,
After the sixth step, the seventh step of extinguishing a plurality of main burners in the first burner group from the top in sequence, and
After the seventh step, the eighth step of sequentially extinguishing a plurality of main burners in the fourth burner group from the top,
After the eighth step, the ninth step of extinguishing a plurality of main burners in the second burner group from the top in sequence, and
After the ninth step, the tenth step of sequentially extinguishing a plurality of main burners in the third burner group from the top, and
A control method for a burner control device, which comprises. A group of burners composed of a plurality of burners provided in the circumferential direction on the inner wall of the fireplace is a burner control device for controlling the burners in the furnace provided in a direction orthogonal to the circumferential direction.
Each of the burners comprises a main burner and an igniter arranged adjacent to the main burner to assist ignition of the main burner.
When igniting the first main burner in the first burner group, if none of the main burners is burning in all the burner groups below the first burner group, the first burner The first control unit that ignites all the igniters in the group,
When igniting the first main burner, if any of the main burners is burning in any of the burner groups below the first main burner group, the first main burner is adjacent to the first main burner. A second control unit that ignites only the first igniter that is arranged
A burner control device characterized by having. A group of burners composed of a plurality of burners provided in the circumferential direction on the inner wall of the fireplace is a burner control device for controlling the burners in the furnace provided in a direction orthogonal to the circumferential direction.
Each of the burners comprises a main burner and an igniter arranged adjacent to the main burner to assist ignition of the main burner.
When extinguishing the first main burner in the first burner group, the fuel remaining in the first main burner is blown into the furnace after the injection of fuel from the first main burner is stopped, and the first In all the burner groups below the burner group, if none of the main burners is burned, all the burners in the first burner group are burned in order to burn the fuel blown off from the first main burner. A third control unit that ignites the igniter for a predetermined time,
When extinguishing the first main burner, if any of the main burners in any of the burner groups below the first main burner group is burning, it is blown off from the first main burner. A fourth control unit that ignites only the first igniter arranged adjacent to the first main burner for a predetermined time in order to burn the fuel.
A burner control device characterized by having.

Images