JP2009276026A - Regenerative burner control method and control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To maintain stable combustion in regenerative burners provided at a furnace body. <P>SOLUTION: A method is provided for controlling the combustion of the regenerative burners 11, 12 in a furnace 10 such as a heating furnace or a heat treatment furnace of metal or nonferrous metal comprising the regenerative burners 11, 12, a gas pipe 21 for supplying combustion gas to each of burners 11a, 11b, 12a, 12b, an air pipe 22 for supplying combustion air to each burner, and an exhaust pipe 23 for exhausting exhaust gas from each burner to the outside air. In this method, the gas pipe 21 is connected to the respective burners through gas valves G1, G2, G3, G4, and the air pipe 22 is connected to the respective burners through air valves A1, A2, A3, A4. The exhaust gas pipe 23 is connected to the respective burners through exhaust gas valves H1, H2, H3, H4, and the flow rates of combustion gas, combustion air and exhaust gas are individually controlled for each burner. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a method for controlling a regenerative burner provided in a furnace body of an industrial furnace such as a metal or non-ferrous metal heating furnace or a heat treatment furnace, and a system for controlling the regenerative burner.

  Conventionally, in a general industrial furnace 10 such as a metal or non-ferrous metal heating furnace or heat treatment furnace, as shown in FIG. 3, a regeneration burner 11 composed of a pair of burners 11a, 11b and a regeneration composed of another pair of burners 12a, 12b. One having two sets of burners 12 is known.

The regenerative burner 11 alternately burns the two burners 11a and 11b that make a pair, sends the high-temperature exhaust heat generated by the combustion of one burner 11a to the other burner 11b side, and stores the heat. The exhausted heat is used when the other burner 11b is burned. Similarly, the regenerative burner 12 also alternately burns the two burners 12a and 12b that make a pair, sends the high-temperature exhaust heat generated by the combustion of one burner 12a to the other burner 12b side, and stores the heat, The stored exhaust heat is used when burning the other burner 12b.
Here, as shown in FIG. 3, the burner 11a of one set of regenerative burner 11 and the burner 12b of another set of regenerative burner 12 are simultaneously burned (reference F indicates flame), and then a set of The burner 11b of the regeneration burner 11 and the burner 12a of another set of regeneration burner 12 are burned simultaneously.
The regenerative burners 11 and 12 configured as described above have a feature that combustion efficiency is high.

However, what is shown in FIG. 3 is composed of four burners 11a, 11b, 12a, and 12b, and two sets of regenerative burners 11 and 12, but the combustion gas, air, and exhaust gas are the source. Since the flow rate is collectively controlled through the gas valve 13, the air valve 14, and the exhaust gas valve 15, detailed flow rate control cannot be performed for each burner 11a, 11b, 12a, 12b.
In addition, since only one gas valve 13, air valve 14, and exhaust gas valve 15 are provided at the base, for example, when a pipe near one burner 11a or its heat storage member is clogged, Optimal flow control cannot be performed.
In FIG. 3, reference numerals 21, 22, and 23 denote a gas pipe (gas pipe), an air pipe (air pipe), and an exhaust gas pipe (exhaust heat pipe), respectively.

  Accordingly, an object of the present invention is to provide a control method and a control system capable of maintaining stable combustion in a regenerative burner provided in a furnace body.

In order to achieve the above-mentioned object, the invention according to claim 1, the two burners (11a and 11b, 12a and 12b) forming a pair are alternately burned, and one burner (11a, 12b) The regenerative burner (11, 12) used when the waste heat obtained by the combustion of this is stored in the regenerator of the other burner (11b, 12a) and the waste heat is used to burn the other burner (11b, 12a) And a gas pipe (21) for supplying combustion gas to each burner (11a, 11b, 12a, 12b) and combustion air to each burner (11a, 11b, 12a, 12b) Metal or non-ferrous metal heating furnace or heat treatment provided with an air pipe (22) for exhausting and an exhaust gas pipe (23) for discharging exhaust gas from each burner (11a, 11b, 12a, 12b) to the outside air Furnace In the furnace (10), a method for controlling the combustion of the regenerative burners (11, 12),
The gas pipe (21) is connected to each burner (11a, 11b, 12a, 12b) via a gas valve (G1, G2, G3, G4), and each burner (11a, 11b, 12a, 12b) is connected. The air pipe (22) is connected to each of the burners (11a, 11b, 12a, 12b) through the air valves (A1, A2, A3, A4), and the exhaust gas valves (H1, H2, H3) are connected to the burners (11a, 11b, 12a, 12b). , H4) to connect the exhaust gas pipe (23), and individually control the flow rate of combustion gas, combustion air, and exhaust gas for each burner (11a, 11b, 12a, 12b). It was made to do.

In the invention according to claim 2, the individual control is performed when one of the two burners (11a and 11b, 12a and 12b) is extinguished and one of the burning burners (11a and 12b) is extinguished. The opening of the gas valve (G1, G4) and the opening of the air valve (A1, A4) provided in one burner (11a, 12b) and the other burner (11b, 12a) during non-combustion are provided. The opening of the exhaust gas valves (H2, H3) is stored,
Next, when the other burner (11b, 12a) is burned, the opening degree of the gas valve (G2, G3) provided in the other burner (11b, 12a) and the opening of the air valve (A2, A3) are opened. The degree is set to the opening degree of the gas valve (G1, G4) and the opening degree of the air valve (A1, A4) provided in the stored one burner (11a, 12b), and the one burner (11a , 12b) is set to the opening degree of the exhaust gas valves (H2, H3) provided in the other burner (11b, 12a) stored. It is characterized by.

Further, in the invention according to claim 3, in the individual control, the air-fuel ratio of one of the two burners (11a and 11b, 12a and 12b) during combustion (11a and 12b) is set to a set value. The opening of the gas valves (G1, G4) and the opening of the air valves (A1, A4) provided in one of the burners (11a, 12b) and the other non-combusting burner (11b) , 12a), the opening degree of the exhaust gas valves (H2, H3) provided in the memory,
Next, when the other burner (11b, 12a) is burned, the opening degree of the gas valve (G2, G3) provided in the other burner (11b, 12a) and the opening of the air valve (A2, A3) are opened. The degree is set to the opening degree of the gas valve (G1, G4) and the opening degree of the air valve (A1, A4) provided in the stored one burner (11a, 12b), and the one burner (11a , 12b) is set to the opening degree of the exhaust gas valves (H2, H3) provided in the other burner (11b, 12a) stored. It is characterized by.

The invention according to claim 4 is a waste heat obtained by alternately burning two burners (11a and 11b, 12a and 12b) as a pair and burning one of the burners (11a and 12b). Is stored in the regenerator of the other burner (11b, 12a), and the regenerative burner (11, 12) used for burning the other burner (11b, 12a) is disposed, and each burner ( 11a, 11b, 12a, 12b) a gas pipe (21) for supplying combustion gas, and an air pipe (22) for supplying combustion air to each burner (11a, 11b, 12a, 12b) ) And an exhaust gas pipe (23) for exhausting exhaust gas from each burner (11a, 11b, 12a, 12b) to the outside, a furnace (10) such as a metal or non-ferrous metal heating furnace or heat treatment furnace In A method of controlling the combustion of the regenerative burners (11, 12),
The gas pipe (21) is connected to each burner (11a, 11b, 12a, 12b) via a gas valve (G1, G2, G3, G4), and each burner (11a, 11b, 12a, 12b) is connected. The exhaust gas pipe (23) is connected to each burner (H1, H2, H3, H4) every time, and the flow rate of the combustion gas and the exhaust gas is set to each burner (11a, 11b, 12a, 12b). It is characterized by being individually controlled.

The invention according to claim 5 is a waste heat obtained by alternately burning two burners (11a and 11b, 12a and 12b) which form a pair, and burning one of the burners (11a and 12b). Is stored in the regenerator of the other burner (11b, 12a), and the regenerative burner (11, 12) used for burning the other burner (11b, 12a) is disposed, and each burner ( 11a, 11b, 12a, 12b) a gas pipe (21) for supplying combustion gas, and an air pipe (22) for supplying combustion air to each burner (11a, 11b, 12a, 12b) ) And an exhaust gas pipe (23) for exhausting exhaust gas from each burner (11a, 11b, 12a, 12b) to the outside, a furnace (10) such as a metal or non-ferrous metal heating furnace or heat treatment furnace In A method of controlling the combustion of the regenerative burners (11, 12),
The air pipe (22) is connected to each burner (11a, 11b, 12a, 12b) via an air valve (A1, A2, A3, A4), and the flow rate of combustion air is set to each burner (11a, 11a, 11b). 11b, 12a, and 12b) are individually controlled.

Further, the invention according to claim 6 is a waste heat obtained by alternately burning two burners (11a and 11b, 12a and 12b) as a pair and burning one of the burners (11a and 12b). Is stored in the regenerator of the other burner (11b, 12a), and the regenerative burner (11, 12) used for burning the other burner (11b, 12a) is disposed, and each burner ( 11a, 11b, 12a, 12b) a gas pipe (21) for supplying combustion gas, and an air pipe (22) for supplying combustion air to each burner (11a, 11b, 12a, 12b) ) And an exhaust gas pipe (23) for exhausting exhaust gas from each burner (11a, 11b, 12a, 12b) to the outside, a furnace (10) such as a metal or non-ferrous metal heating furnace or heat treatment furnace In A system for controlling the combustion of the regenerative burners (11, 12),
The gas pipe (21) is connected to each burner (11a, 11b, 12a, 12b) via a gas valve (G1, G2, G3, G4), and each burner (11a, 11b, 12a, 12b) is connected. The air pipe (22) is connected to each of the burners (11a, 11b, 12a, 12b) through the air valves (A1, A2, A3, A4), and the exhaust gas valves (H1, H2, H3) are connected to the burners (11a, 11b, 12a, 12b). , H4), the exhaust gas pipe (23) is connected.

  Symbols in parentheses indicate corresponding elements or corresponding matters described in the drawings and the best mode for carrying out the invention described later.

According to invention of Claim 1, while connecting a gas pipe via a gas valve for every burner which comprises a regeneration burner, connecting an air pipe via an air valve for every burner, and also each burner An exhaust gas pipe is connected to each burner through each exhaust gas valve, and the flow rate of combustion gas, combustion air, and exhaust gas is individually controlled for each burner. The flow rate of the exhaust gas and the flow rate of the exhaust gas to be exhausted can be individually finely controlled. Further, even when clogging or the like occurs in a pipe near one burner or its heat storage body and the flow rate is reduced, optimal flow rate control can be performed.
Therefore, stable combustion can be maintained.

Further, according to the invention described in claim 2, in addition to the function and effect of the invention described in claim 1, when one of the burning burners is extinguished, the gas valve provided in the one burner is opened. And the opening degree of the air valve and the opening degree of the exhaust gas valve provided in the other burner during non-combustion, and when the other burner is burned, the opening degree of the gas valve provided in the other burner The opening degree of the air valve is set to the opening degree of the gas valve provided in one burner and the opening degree of the air valve, and the opening degree of the exhaust gas valve provided in one burner is stored. Since the opening of the exhaust gas valve provided in is set to the opening of the gas valve and the air valve in a stable state when one burner during combustion is extinguished, the other burner from the time of ignition of the other burner The opening degree of the gas valve and the air valve on the burner side can be set, and the opening degree of the exhaust gas valve can also be set to the opening degree on the other burner side when the one burner is in a stable state, The opening of the exhaust gas valve on the burner side can be set from the beginning.
Therefore, a stable combustion result can be obtained in response to the transient fluctuation when the burner is re-ignited for the second time or later.

  Furthermore, according to the invention described in claim 3, in addition to the operation and effect of the invention described in claim 1, the time when the air-fuel ratio of one of the two burners during combustion reaches the set value is set. As reference, the opening of the gas valve and the opening of the air valve provided in one of the burners and the opening of the exhaust gas valve provided in the other non-burning burner are stored, and the other burner is burned. When opening, the opening of the gas valve and the opening of the air valve provided in the other burner are set to the opening of the gas valve and the opening of the air valve provided in one burner, The opening of the exhaust gas valve installed in the burner is set to the opening of the stored exhaust gas valve in the other burner, so that the air / fuel ratio of the burner is optimized so that the air / fuel ratio of the burner is optimized. Each flow rate It can be controlled individually.

  Further, as in the invention described in claim 4, it is also possible to individually control only two elements of gas-based combustion gas and exhaust gas. Further, as in the fifth aspect of the invention, only one element of the combustion air can be individually controlled.

According to the invention of claim 6, in the system for controlling the combustion of the regenerative burner, the gas pipe is connected to each burner constituting the regenerative burner via the gas valve, and the air valve is provided for each burner. In addition, an exhaust pipe is connected to each burner via an exhaust gas valve, so that the flow rate of combustion gas, combustion air, and exhaust gas is set for each burner. Can be individually controlled.
Therefore, fine and stable combustion can be maintained.

  With reference to FIG.1 and FIG.2, the regeneration burner control method and control system which concern on embodiment of this invention are demonstrated. FIG. 1 is a schematic configuration diagram showing a regenerative burner control system that implements a regenerative burner control method according to an embodiment of the present invention, and FIG. 2 shows processing contents by the regenerative burner control method according to the embodiment of the present invention. It is a flowchart. The same parts as those shown in the conventional example are denoted by the same reference numerals.

This regenerative burner control method and regenerative burner control system includes two sets of regenerative burners 11 arranged as shown in FIG. 1 with respect to a furnace body 10 of a general industrial furnace such as a metal or non-ferrous metal heating furnace or heat treatment furnace. , 12 are individually controlled for each burner (first burner) 11a, (second burner) 11b, (third burner) 12a, and (fourth burner) 12b.
Here, the regenerative burner 11 alternately burns the two burners 11a and 11b that form a pair, and stores the waste heat obtained by the combustion of one burner 11a in the regenerator of the other burner 11b. The heat is used when the other burner 11b is burned. Similarly, the regenerative burner 12 alternately burns the two burners 12a and 12b forming a pair, and the burner 12b burns. The obtained waste heat is stored in the regenerator of the other burner 12a, and the waste heat is used when the other burner 12a is burned. In the present embodiment, the burner 11a composing the regenerator burner 11 and the burner 12b composing another regenerative burner 12 are burned at the same time (reference symbol F indicates flame), and simultaneously with the extinguishing of the burner 11a and the burner 12b, the regenerator burner. 11 and a burner 12a constituting another regeneration burner 12 are burned simultaneously.

  Each burner 11a, 11b, 12a, 12b has a gas pipe (gas pipe) 21 for supplying combustion gas, an air pipe (air pipe) 22 for supplying combustion air, and a high temperature. An exhaust gas pipe (exhaust heat pipe) 23 for discharging the exhaust heat to the outside air as exhaust gas is connected. In addition, a gas valve 13, an air valve 14, and an exhaust gas valve 15 are provided at the major portions of the gas pipe 21, the air pipe 22, and the exhaust gas pipe 23, respectively, and the flow rate is collectively controlled.

And gas valve G1, G2, G3, G4 is each provided for each burner 11a, 11b, 12a, 12b, and the gas pipe | tube 21 is connected via gas valve G1, G2, G3, G4. In addition, air valves A1, A2, A3, and A4 are provided for the burners 11a, 11b, 12a, and 12b, respectively, and the air pipe 22 is connected through the air valves A1, A2, A3, and A4. Further, exhaust gas valves H1, H2, H3, and H4 are provided for the burners 11a, 11b, 12a, and 12b, respectively, and the exhaust gas pipes 23 are connected through the exhaust gas valves H1, H2, H3, and H4.
As a result, the flow rates of combustion gas, combustion air, and exhaust gas can be individually controlled for each burner 11a, 11b, 12a, 12b as well as the main flow. .

In addition to controlling the flow rates of these combustion gas, combustion air, and exhaust gas, the entire apparatus is controlled by a CPU 50 provided in the control unit 100.
The control unit 100 is provided with a ROM 51 in which a program of the entire apparatus is written, a RAM 52 that is readable and writable and stores data, an input switch such as a touch panel, and an operation display unit 53 including a display, a printer, and the like. Has been.
In the present embodiment, the RAM 52 stores the opening of the gas valves G1, G2, G3, G4, the opening of the air valves A1, A2, A3, A4, and the opening of the exhaust valves H1, H2, H3, H4. It is like that.
The CPU 50 receives signals for on / off control from the burners 11a, 11b, 12a, and 12b, and alternately burns the two burners 11a and 11b that form a pair of the regenerative burner 11, and the regenerative burner. The two burners 12a and 12b that form a pair of 12 are also burned alternately.

Next, the flow rate control process for the regeneration burners 11 and 12 will be described with reference to FIG.
In this process, the CPU 50 individually and finely controls the flow rates of the combustion gas and air supplied to each burner 11a, 11b, 12a, 12b constituting the regenerative burner 11, 12, and each burner 11a, 11b, The flow rate of exhaust gas exhausted from 12a and 12b is also finely controlled individually (step 301).

  Next, the CPU 50 combusts the first burner 11a and the fourth burner 12b simultaneously (step 302), and after a predetermined time t (step 303), that is, when the burner combustion switching time comes, The opening degree of the air valve A1 individually connected to the first burner 11a is read and stored in the RAM 52 as well as the opening degree of the gas valve G1 individually connected to the first burner 11a, and is individually connected to the fourth burner 12b. The opening of the air valve A4 individually connected to the fourth burner 12b as well as the opening of the gas valve G4 is read and stored in the RAM 52, and the opening of the exhaust gas valve H2 individually connected to the second burner 11b; The opening degree of the exhaust gas valve H3 individually connected to the third burner 12a is read and stored in the RAM 52 (step 304).

  Then, the CPU 50 extinguishes the first burner 11a and the fourth burner 12b during combustion (step 305), and the second burner 11b as well as the opening degree of the gas valve G2 individually connected to the second burner 11b to be combusted from now on. The air valve A2 individually connected to the first burner 11a is stored in the RAM 52 in the same manner as the gas valve G1 individually connected to the first burner 11a. The opening degree of the air valve A3 individually connected to the third burner 12a is set as the opening degree of the gas valve G3 individually connected to the third burner 12a, and the fourth burner 12b stored in the RAM 52 is set. Set to the opening of the air valve A4 individually connected to the fourth burner 12b as well as the opening of the gas valve G4 individually connected to Sometimes, the opening degree of the exhaust gas valve H1 individually connected to the first burner 11a and the opening degree of the exhaust gas valve H4 individually connected to the fourth burner 12b are individually set in the second burner 11b stored in the RAM 52. The opening of the connected exhaust gas valve H2 and the opening of the exhaust gas valve H3 individually connected to the third burner 12a are set (step 306), and the second burner 11b and the third burner 12a are simultaneously burned (step). 307).

  Next, when the predetermined time t has elapsed (step 308) and the burner combustion switching time has come, the CPU 50 determines the second burner in the same manner as the opening of the gas valve G2 individually connected to the second burner 11b. The opening of the air valve A2 individually connected to 11b is read and stored in the RAM 52, and the air valve A3 individually connected to the third burner 12a as well as the opening of the gas valve G3 individually connected to the third burner 12a. Is read and stored in the RAM 52, and the opening of the exhaust gas valve H1 individually connected to the first burner 11a and the opening of the exhaust gas valve H4 individually connected to the fourth burner 12b are read and stored in the RAM 52. (Step 309).

  The CPU 50 extinguishes the burning second burner 11b and the third burner 12a (step 310), and the first burner 11a has the same opening as the gas valve G1 individually connected to the first burner 11a to be burned. The air valve A1 individually connected to the second burner 11b is stored in the RAM 52 in the same manner as the gas valve G2 individually connected to the second burner 11b. The opening degree of the air valve A4 individually connected to the fourth burner 12b is set as the opening degree of the gas valve G4 individually connected to the fourth burner 12b, and the third burner 12a stored in the RAM 52 is set. Set to the opening of the air valve A3 individually connected to the third burner 12a as well as the opening of the gas valve G3 individually connected to Sometimes, the opening degree of the exhaust gas valve H2 individually connected to the second burner 11b and the opening degree of the exhaust gas valve H3 individually connected to the third burner 12a are individually set in the first burner 11a stored in the RAM 52. The opening of the connected exhaust gas valve H1 and the opening of the exhaust gas valve H4 individually connected to the fourth burner 12b are set (step 311), the process returns to step 301, and each burner 11a, 11b, 12a, 12b is set. The flow rates of the combustion gas and air supplied are individually and finely controlled, and the flow rates of exhaust gas discharged from the burners 11a, 11b, 12a, and 12b are individually finely controlled. The burner 11a and the fourth burner 12b are burned simultaneously, and the following processing is repeated until a stop instruction is issued.

  Thus, the individual control of the flow rate is performed when one of the burners 11a, 12b in combustion is extinguished in the regenerative burners 11, 12 including a pair of burners 11a, 11b, 12a, 12b. The opening of the gas valves G1, G4 and the opening of the air valves A1, A4 provided in 11a, 12b are stored, and then the other burner 11b, 12a is provided when the other burner 11b, 12a is burned. The opening of the gas valves G2 and G3 and the opening of the air valves A2 and A3 are set to the opening of the gas valves G1 and G4 and the opening of the air valves A1 and A4 provided in the one burner 11a and 12b. Thus, when one (or the other) burner during combustion is extinguished, that is, when the air-fuel ratio of the burner is in an optimal balance, The opening of the gas valve and the air valve is set to the opening of the gas valve and the air valve on the other (or one) burner side from the time of ignition of the other (or one) burner to be burned next. Stable combustion results can be obtained in response to transient fluctuations during reignition. Similarly, the opening degree of the exhaust gas valves H2, H3 provided in the other burner 11b, 12a when one of the burning burners 11a, 12b is extinguished is stored, and then the other burner 11b, 12a is stored. Since the opening degree of the exhaust gas valves H1, H4 provided in one burner 11a, 12b is set to the opening degree of the exhaust gas valves H2, H3 provided in the other burner 11b, 12a stored when Combustion results are obtained.

  In the present embodiment, when one of the two burners is extinguished, the opening of the gas valve and the opening of the air valve provided in one of the burners, and the other not burning The opening of the exhaust gas valve provided in one burner is stored, and when the other burner is burned, the opening of the gas valve and the opening of the air valve provided in the other burner are provided in the stored one burner. Set the opening of the gas valve and the opening of the air valve, and set the opening of the exhaust valve provided in one burner to the opening of the stored exhaust gas valve in the other burner. The opening of each valve is stored on the basis of the time when one burner during combustion is extinguished, but instead, the air-fuel ratio of one of the two burners during combustion is set. Value Based on the time, the opening of the gas valve and the opening of the air valve provided in one of the burners and the opening of the exhaust gas valve provided in the other non-burning burner are stored, and the other burner is stored. When the gas is burned, the opening of the gas valve and the opening of the air valve provided in the other burner are set to the opening of the gas valve and the opening of the air valve provided in one burner, You may make it set the opening degree of the exhaust gas valve provided in this burner to the opening degree of the exhaust gas valve provided in the other stored burner.

  In the present embodiment, the combustion gas, air, and exhaust gas are individually controlled for each burner. Of these, the gas-based combustion gas and exhaust gas are controlled. It is also possible to individually control only two elements of the gas or only one element of air for combustion in the air system.

It is a schematic block diagram which shows the regeneration burner control system which enforces the regeneration burner control method which concerns on embodiment of this invention. It is a flowchart which shows the processing content by the regeneration burner control method which concerns on embodiment of this invention. It is a schematic block diagram which shows the regeneration burner control system which implements the regeneration burner control method which concerns on a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Furnace 11,12 Regeneration burner 11a First burner 11b Second burner 12a Third burner 12b Fourth burner 13 Gas valve 14 Air valve 15 Exhaust gas valve 21 Gas pipe 22 Air pipe 23 Exhaust pipe 50 CPU
51 ROM
52 RAM
53 Operation display section 100 Control unit A1, A2, A3, A4 Air valve F Flame G1, G2, G3, G4 Gas valve H1, H2, H3, H4 Exhaust valve

Claims (6)

Two burners in a pair are burned alternately, waste heat obtained by burning one burner is stored in the regenerator of the other burner, and the waste heat is used to burn the other burner A regenerative burner is installed, a gas pipe for supplying combustion gas to each burner, an air pipe for supplying combustion air to each burner, and exhaust gas from each burner is discharged to the outside air In a furnace such as a metal or non-ferrous metal heating furnace or a heat treatment furnace provided with an exhaust gas pipe for performing, a method for controlling the combustion of the regenerative burner,
The gas pipe is connected to each burner via a gas valve, the air pipe is connected to each burner via an air valve, and the exhaust pipe is connected to each burner via an exhaust gas valve. A regeneration burner control method comprising connecting and individually controlling the flow rates of combustion gas, combustion air, and exhaust gas for each burner. In the individual control, when one of the two burners is extinguished, the opening of the gas valve and the opening of the air valve provided in one of the burners, and the other not burning The opening of the exhaust gas valve provided in the burner of
Next, when the other burner is burned, the opening degree of the gas valve and the opening degree of the air valve provided in the other burner are stored as the opening degree of the gas valve provided in the one burner and the air opening degree. The opening degree of the exhaust gas valve provided in the one burner is set to the opening degree of the exhaust gas valve provided in the other stored burner. Item 2. The regeneration burner control method according to Item 1. In the individual control, when the air-fuel ratio of one burner among the two burners reaches a set value, the opening degree of the gas valve and the opening degree of the air valve provided in the one burner, , Storing the opening degree of the exhaust gas valve provided in the other burner during non-combustion,
Next, when the other burner is burned, the opening degree of the gas valve and the opening degree of the air valve provided in the other burner are stored as the opening degree of the gas valve provided in the one burner and the air opening degree. The opening degree of the exhaust gas valve provided in the one burner is set to the opening degree of the exhaust gas valve provided in the other stored burner. Item 2. The regeneration burner control method according to Item 1. Two burners in a pair are burned alternately, waste heat obtained by burning one burner is stored in the regenerator of the other burner, and the waste heat is used to burn the other burner A regenerative burner is installed, a gas pipe for supplying combustion gas to each burner, an air pipe for supplying combustion air to each burner, and exhaust gas from each burner is discharged to the outside air In a furnace such as a metal or non-ferrous metal heating furnace or a heat treatment furnace provided with an exhaust gas pipe for performing, a method for controlling the combustion of the regenerative burner,
The gas pipe is connected to each burner via a gas valve, the exhaust gas pipe is connected to each burner via an exhaust gas valve, and the flow rates of combustion gas and exhaust gas are set for each burner. Regenerative burner control method characterized by individual control. Two burners in a pair are burned alternately, waste heat obtained by burning one burner is stored in the regenerator of the other burner, and the waste heat is used to burn the other burner A regenerative burner is installed, a gas pipe for supplying combustion gas to each burner, an air pipe for supplying combustion air to each burner, and exhaust gas from each burner is discharged to the outside air In a furnace such as a metal or non-ferrous metal heating furnace or a heat treatment furnace provided with an exhaust gas pipe for performing, a method for controlling the combustion of the regenerative burner,
A regeneration burner control method, wherein the air pipe is connected to each burner via an air valve, and the flow rate of combustion air is individually controlled for each burner. Two burners in a pair are burned alternately, waste heat obtained by burning one burner is stored in the regenerator of the other burner, and the waste heat is used to burn the other burner A regenerative burner is installed, a gas pipe for supplying combustion gas to each burner, an air pipe for supplying combustion air to each burner, and exhaust gas from each burner is discharged to the outside air In a furnace such as a metal or non-ferrous metal heating furnace or a heat treatment furnace provided with an exhaust gas pipe for controlling the combustion of the regenerative burner,
The gas pipe is connected to each burner via a gas valve, the air pipe is connected to each burner via an air valve, and the exhaust pipe is connected to each burner via an exhaust gas valve. Regenerative burner control system characterized by being connected.

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