JPH09257206A - Radiation boiler and steam producing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to control the temperature of superheated steam easily and process exhaust gas with ease by using a high speed change over heat storage burner as a combustion device and providing a purification device at the outlet of exhaust gas of the burner. SOLUTION: A high speed change over heat storage burner which is separated in a first row and a second row respectively, is a burner which is combined with a high speed change over burner and a thermal storage heat exchanger and is provided with two system-based burners 6 and 7 having heat accumulators 2 and 3 provided on an air introduction area to combustion burners 4 and 5. A heat transfer unit 1 which serves as a connection pipe which connects mutually the outlets of combustion exhaust gas of this two system-burners 6 and 7 and connecting pipelines 10 and 11 which are as a gas pipeline which are respectively connected to the air introduction unit of the two systems and a four-way valve 9 which serves as a change over means provided on the connecting area of this connecting pipelines 10 and 11, are provided. Furthermore, a wet exhaust gas desulfurizer is provided at the outlet of exhaust gas of this high speed changeover heat storage burner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiant boiler apparatus and a steam generating method, and more particularly, to a radiant boiler apparatus and a steam generating method which can realize high performance and low cost.

[0002]

2. Description of the Related Art FIG. 5 is an explanatory view showing a conventional boiler device. This device includes a combustion chamber 51, a flame burner 59 as a combustion device provided in the combustion chamber 51, a superheater 52 sequentially provided in a flue of exhaust gas generated in the combustion chamber 51, a boiler body 53, A dust remover 54 and a chimney 55,
57 mainly comprises a pump 56 for supplying the condensed water collected by the condenser 58 to the boiler main body 53;
Is a turbine for power generation, for example. The condensed water collected by the condenser 58 is introduced into the boiler main body 53 by the pump 56 together with the supply water (not shown), becomes saturated steam here, and then flows into the superheater 52 to become superheated steam.

[0003]

However, in the above-mentioned prior art, since the flame burner is used as the combustion device, a high temperature and uniform flame cannot be formed in the combustion chamber, resulting in poor heat transfer efficiency. was there. Further, since it is difficult to control the combustion gas temperature, it is not possible to obtain superheated steam at an arbitrary temperature, and there is a problem that exhaust gas treatment such as desulfurization treatment that requires a stable exhaust gas temperature is difficult. there were.

An object of the present invention is to solve the above-mentioned problems of the prior art, to provide a radiant boiler apparatus and a steam generating method which can easily control the temperature of superheated steam, have high efficiency and low cost, and can easily treat exhaust gas. To provide.

[0005]

Means for Solving the Problems To achieve the above object, the invention claimed in the present application is as follows. (1) In a radiant boiler apparatus having a combustion chamber having a boiler heat transfer surface, a convection heat transfer section of the combustion chamber, and a combustion device provided in the combustion chamber, a combustion burner and a burner are used as the combustion device. A two-system combustor having a heat storage type heat exchanger provided in an air introduction portion to the combustion burner, a connecting pipe interconnecting the combustion exhaust gas outlets of the two-system combustor, and the two-system air Gas pipes connected to the introduction part, respectively,
A radiant boiler apparatus, characterized in that a burner device provided with a line switching means provided at a connecting portion between the gas pipes is used, and a desulfurization device is provided at an exhaust gas outlet of the burner device.

(2) The radiant boiler apparatus according to (1) above, wherein a radiant superheater is provided in the combustion chamber. (3) The radiant boiler apparatus according to (1) or (2), wherein a heat transfer tube is provided in the convection heat transfer section of the combustion chamber. (4) The radiant boiler apparatus according to (3), wherein a desulfurization device is provided in the exhaust gas flue of the convection heat transfer section of the combustion chamber. (5) The radiant boiler apparatus according to any one of the above (1) to (4), wherein a radiant reheater is provided in the combustion chamber.

(6) In the steam generating method using the radiant boiler apparatus according to (1) above, it is generated when the combustion burner of one combustor of the two combustors of the burner apparatus is combusted. Combustion generated when the combustion exhaust gas is circulated through the heat storage type heat exchanger of the combustor of the other system to recover and accumulate the heat quantity of the combustion exhaust gas, while the combustion burner of the combustor of the other system is combusted. Exhaust gas is circulated through the heat storage heat exchanger of the combustor of the one system to collect and store the amount of heat,
By repeating the above operation in sequence by the line switching means, the heat quantity of the combustion exhaust gas of the burning burner is stored in the heat storage type heat exchanger of the combustor during combustion stop, and the heating source of the combustion air for the next combustion Is performed to heat the boiler heat transfer surface by the generated combustion gas to generate steam, and sulfur oxide in the combustion gas is removed by a desulfurization device provided at the burner device outlet. Steam generation method.

(7) The steam generated in the combustion chamber boiler is introduced into a radiant superheater provided in the combustion chamber to be superheated, and the heat generation amount of the burner device is adjusted to adjust the temperature to a plurality of temperatures in the combustion chamber. The steam generation method according to (6) above, wherein a zone is formed and the temperature of the temperature zone is controlled to adjust the heat absorption amount of the superheated steam in the radiant superheater. (8) A part of the combustion exhaust gas of the burner device is introduced into a convection heat transfer section of a combustion chamber, and heat is recovered by a heat transfer tube provided in the convection heat transfer section. The steam generation method according to 7).

(9) The exhaust gas after the heat recovery is introduced into a desulfurization device provided in an exhaust gas flue of the convection heat transfer section to remove sulfur oxides contained in the exhaust gas. 8) The steam generation method described in 8). (10) A plurality of steams that have completed their work are introduced into the combustion chamber by introducing them into a radiant reheater provided in the combustion chamber to reheat the heat and adjusting the heat generation amount of a burner device provided in the combustion chamber. The heat absorption amount of the reheated steam in the radiant reheater is adjusted by forming the temperature zone of (1) and controlling the temperature of the temperature zone. Steam generation method.

In the present invention, as the combustion apparatus of the radiant boiler apparatus, a dual system having a combustion burner and a heat storage type heat exchanger (hereinafter, also simply referred to as a heat storage unit) provided in an air introduction section to the combustion burner is used. A combustor, a connecting pipe connecting the combustion exhaust gas outlets of the two-system combustor to each other, and a line switching means provided at the connecting parts of the gas pipes respectively connected to the air introducing sections of the two systems. A burner device provided, wherein the combustion exhaust gas generated when one of the two combustors of the burner device burns the combustion burner of the combustor is circulated to the heat storage device of the combustor of the other system. The heat amount of the combustion exhaust gas is recovered and accumulated, and the combustion exhaust gas generated when the combustion burner of the combustor of the other system is burned is circulated to the regenerator of the combustor of the one system to generate the heat amount. Collect and accumulate, The burner device uses the line switching means to sequentially repeat the above operation to store the heat quantity of the combustion exhaust gas of the burning burner in the regenerator of the combustor in the non-combustion state and use it as the heating source of the combustion air in the next combustion. (Hereinafter, a high-speed regenerative combustion system or a high-cycle regenerative system
The heat transfer area load in the boiler combustion chamber can be made uniform by using a stem, which is also simply referred to as an HRS burner).
It is 2.0 times or more, and the thermal efficiency is improved. Further, since the combustion chamber heat transfer area can be utilized to the maximum by the high heat transfer surface heat load combustion, for example, the amount of steam generated in the combustion chamber boiler is significantly increased. Furthermore, part of the exhaust gas from the boiler combustion chamber exits H
By bypassing the heat storage device of the RS burner, the heat transfer area of the convection heat transfer section can be reduced as the boiler body. Therefore,
The boiler body structure is very compact, the total weight is reduced, and the boiler scale-up becomes easy.

FIG. 1 shows a typical HR used in the present invention.
It is explanatory drawing of S burner. This HRS burner is a combustor in which a high-speed switching combustor and a heat storage type heat exchanger are combined, and includes a combustion burner 4 or 5 and a heat storage device 2 or 3 provided in an air introduction portion to the combustion burner, respectively. The two-system combustors 6 and 7, the heat transfer section 1 as a connecting pipe interconnecting the combustion exhaust gas outlets of the two-system combustors 6 and 7, and the air introduction section of the two systems, respectively. It is mainly composed of a connecting pipe 10 or 11 as a gas pipe, and a four-way valve 9 as a line switching means provided at the connecting portion of the connecting pipes 10 and 11. 8
Is air piping, 12 is combustion air, 13 is fuel, and 14 is combustion exhaust gas.

In such a structure, combustion by the HRS burner is performed as follows. That is, the fuel 13 supplied to the combustion burner 4 of the combustor 6 of the first system flows in through the air pipe 8, the four-way valve 9 and the connecting pipe 10,
The combustion exhaust gas 14 mixed with the combustion air 12 heated to a predetermined temperature in the regenerator 2 and burned, for example, the combustion exhaust gas 14 at 1200 ° C., heats the heat transfer section 1 and then the inner wall of the heat transfer section 1. Along with flowing into the dormant combustor 7, heat is given to the heat storage device 3, and becomes low temperature exhaust gas of, for example, 80 ° C., and is discharged to the outside of the system through the connecting pipe 11 and the four-way valve 9.

On the other hand, the combustion burner 5 of the second system combustor 7
Is operated, the four-way valve 9 is switched,
The fuel 13 supplied to the combustion burner 5 passes through the air pipe 8, the four-way valve 9 and the connecting pipe 11, and then the combustor 7 of the second system.
And is mixed with the combustion air 12 heated to a predetermined temperature, for example, 1000 ° C. in the heat accumulator 3 that has accumulated the amount of heat by the combustion of the combustor of the first system, and burns. The combustion exhaust gas 14 generated at this time flows toward the first combustor 6 along the inner wall of the heat transfer section 1 after heating the heat transfer section 1, and after heating the regenerator 2 of the combustor 6, It is discharged to the outside of the system through the connecting pipe 10 and the four-way valve 9. Thereafter, the four-way valve 9 switches combustion between the combustor 6 of the first system and the combustor 7 of the second system at a predetermined interval, for example, at intervals of 20 to 30 seconds.

The HRS burner switches the flow of exhaust gas and combustion air within a short cycle, for example, within 60 seconds, and stores the heat quantity of the combustion exhaust gas generated by the combustion of one combustor in the regenerator of the other combustor. This can be used as a heat source for the combustion air used when the other combustor burns. That is, since the HRS burner can realize a combustion method using high-temperature preheated air, it is possible to form a very uniform and high-temperature flame even though it is a high-load combustion, and it is possible to perform a high heat transfer area load combustion. . Also,
Since high temperature combustion becomes possible, relatively low quality fuel can be used. The heat storage unit of the HRS burner is composed of, for example, a ceramic honeycomb.

In the present invention, the desulfurization device provided at the exhaust gas outlet of the HRS burner and the convection heat transfer portion of the combustion chamber is, for example, a wet flue gas desulfurization device, but is not particularly limited. Moreover, the superheater and the heat transfer tube provided in the combustion chamber are not particularly limited.

[0016]

Next, the present invention will be described in more detail by way of examples. FIG. 2 shows an embodiment H of the present invention.
It is a figure which shows the system of the radiation type boiler apparatus which applied RS burner. In the figure, this device is a radiant boiler combustion chamber 21 having a boiler heat transfer surface, a convection heat transfer part of the combustion device, and an HR as a combustion device provided in the combustion chamber 21.
SRS burner, and the HRS burner has a first series 22 and a second series.
It is divided into series 23. In addition, this device is used in the combustion chamber 21
It has a radiant superheater 24 provided therein and an economizer 25 as a heat transfer tube provided in the convection heat transfer part of the combustion chamber 21, and has a connecting pipe 27 or 28 in the HRS burners 22, 23 of the two systems. A forced draft fan 26 that supplies combustion air 29 through the air, and wet flue gas desulfurization devices 30 and 3 provided at the exhaust gas outlets of the HRS burners 22 and 23, respectively.
1, a flue 32 for the exhaust gas flowing out of the desulfurizer, a chimney 33 provided at the downstream of the flue gas flue, and an economizer 25 provided at the convection heat transfer part of the combustion chamber 21 for heating the feed water. Boiler feed pump 36 that supplies feed water 34 via a reactor 35, and steam 3 generated in the boiler in the combustion chamber 21.
Boiler drum 37 which separates 9 into steam and water.

In such a structure, the first series HRS burner 22 and the second series H to which the fuel 38 is supplied are supplied.
In the RS burner 23, for example, the combustion exhaust gas at 1200 ° C., which is generated when one of the burners is burned as described in FIG. 1, is circulated to the other heat accumulator to recover the heat amount of the combustion exhaust gas. Generated and accumulated when one of the other combustion burners burns, for example, 1
The combustion exhaust gas at 200 ° C. is circulated to the one regenerator to collect and accumulate the amount of heat, and this operation is sequentially repeated by the switching device so that the combustion exhaust gas of the burning burner has the calorific value during combustion suspension. Combustion using the combustion air stored in the heat accumulator of the vessel as the heat source for heating next to, for example, 1000 ° C. is repeated at intervals of, for example, 20 to 30 seconds, thereby heating the boiler heat transfer surface. Steam is generated.

The feed water 34 discharged from the boiler feed water pump 36 flows into the economizer 25 via the feed water heater 35, where it is heated to, for example, 260 ° C., and then passes through the boiler drum 37 to cool the water in the combustion chamber 21. It flows into the tube and is heated via the boiler heat transfer surface to become steam at, for example, 300 ° C. The generated steam 39 is separated into steam and water through the boiler drum 37, and then the radiant superheater 2 provided in the combustion chamber 21.
4 and is superheated there to become, for example, 510 ° C. superheated steam. At this time, the radiant heater 2 is controlled by the combustion chamber Zone Control method in which the heating value of each HRS burner is controlled to provide a plurality of temperature zones in the boiler combustion chamber 21.
The heat absorption amount of the superheated steam in 4 is adjusted, and the superheated steam temperature is adjusted. The superheated steam thus generated is supplied to, for example, a steam turbine for power generation.

Most of the combustion exhaust gas 40 generated in the HRS burners 22 and 23 is cooled to, for example, an acid dew point or lower through a HRS regenerator, and then desulfurizer 30 or 31.
From the chimney 33 after the sulfur oxides are removed by contact with the desulfurizing agent slurry 41 injected from above, and then flowing through the exhaust gas flue 32 and further treated as exhaust gas if necessary. Released into the atmosphere. At this time HRS
The water contained in the burner outlet combustion exhaust gas, which is cooled to below the dew point and becomes mist, flows down along the inner wall surface of the desulfurization device along with soot dust and some sulfides, and is discharged from the bottom part,
After the solid matter is removed by the filter 43, the waste water 42 is sent to a waste water treatment device (not shown). On the other hand, part of the combustion exhaust gas, for example, about 20%, heats the feed water,
Alternatively, due to the heat balance relationship between the combustion air and the combustion exhaust gas, it is introduced into the convection heat transfer section of the combustion chamber 21 and heats the economizer 25 to become a low temperature exhaust gas of, for example, 180 ° C. It flows into 32 and merges with the exhaust gas from the desulfurizer.

According to the present embodiment, by using a plurality of HRS burners 22 and 23 as the combustion device, each HRS burner is
Since a so-called combustion chamber zone control system, in which a plurality of temperature zones are formed by controlling the calorific value of the burner, can be realized, the combustion gas temperature distribution in the boiler combustion chamber 21 is controlled to control the radiant superheater. By adjusting the heat absorption amount of the superheated steam in 24, the superheater outlet steam temperature can be arbitrarily adjusted.

Further, by using the HRS burner,
The heat transfer surface heat load on the water cooling pipe of the boiler combustion chamber 21 becomes high, and the flue gas recovered in the heat accumulator is cooled to a lower temperature than, for example, the conventional heat recovery method. The thermal efficiency is greatly improved and the boiler efficiency is significantly improved. Therefore, the boiler body can be made compact and the cost can be reduced. Furthermore, HRS
Using a burner enables low NOx combustion.

According to the present embodiment, by providing the desulfurization device directly at the exhaust gas outlet of the HRS burner, high-performance exhaust gas desulfurization operation can be performed with simple equipment, and at the same time, the dust and so on contained in the exhaust gas can be obtained. Solids can be removed. That is, since the exhaust gas heat-recovered by the heat storage device of the HRS burner is cooled to, for example, the acid dew point or lower, not only the gaseous SOx but also the sulfides contained in the mist are simultaneously removed in the downstream desulfurization device. It Therefore, the desulfurization efficiency is improved as a whole. Further, since the soot dust captured by the mist is also simultaneously captured and discharged from the bottom, the amount of soot dust in the exhaust gas can be significantly reduced.

In this embodiment, the exhaust gas pipe 44 connecting the convection heat transfer section of the combustion chamber and the exhaust gas flue 32 at the outlet of the desulfurization apparatus is used when necessary, such as when the exhaust gas regulation is strict.
It is preferable to provide a small desulfurization device, for example. As a result, all the exhaust gas is desulfurized, so that the desulfurization efficiency of the entire apparatus is significantly improved. Second Embodiment FIG. 3 is an explanatory diagram showing another embodiment of the present invention. FIG.
2. In this radiant boiler apparatus, the radiant superheater 24 provided in the boiler combustion chamber 21 of FIG. 2 is omitted, and it is a simple apparatus that does not use the so-called combustion chamber Zone Control method.

Also in this embodiment, the heat transfer surface heat load on the water cooling pipe of the boiler combustion chamber 21 is increased, the thermal efficiency of the entire plant is significantly improved, and the boiler efficiency is significantly improved. Further, by providing the desulfurization device at the exhaust gas outlet of the HRS burner, high-performance exhaust gas desulfurization operation can be performed with simple equipment, and at the same time, solid matters such as dust and the like contained in the exhaust gas can be removed.

Embodiment 3 Next, another embodiment of the present invention will be described with reference to FIG. FIG.
In this boiler device, the boiler combustion chamber 21 of FIG.
A radiant reheater 45 is further provided therein, for example, steam discharged from the high-pressure turbine is reheated again to reheat steam, and the reheat steam is supplied to, for example, a medium-pressure turbine.

According to this embodiment, a plurality of HRS burners 22 and 23 are used as the combustion device of the combustion chamber 21 having the radiant superheater 24 and the radiant reheater 45.
Since it is possible to realize a so-called combustion chamber zone control method, in which a plurality of temperature zones are formed in the boiler combustion chamber by controlling the heat generation amount of the RS burner, it is possible to control the superheated steam temperature and the reheated steam temperature in parallel. You can

[0027]

According to the first aspect of the present invention, the HRS burner is used as the combustion device and the desulfurization device is provided at the exhaust gas outlet of the burner, so that the heat transfer area heat load in the boiler combustion chamber is reduced. It becomes uniform, the heat generation rate in the combustion chamber is improved, and the exhaust gas having a sufficiently low temperature can be effectively desulfurized.

According to the invention of claim 2 of the present application, by providing the radiation superheater in the combustion chamber, in addition to the effects of the invention described above, the heat generation amount of each HRS burner is controlled to provide a plurality of heaters in the boiler combustion chamber. Combustion chamber Zone Contr that forms a temperature zone
By the ol method, the heat absorption amount of the superheated steam in the radiant superheater can be controlled to adjust the superheated steam temperature. According to the invention described in claim 3 of the present application, by providing the heat transfer tube in the convection heat transfer section of the combustion chamber, in addition to the effects of the above invention, the thermal efficiency of the entire device can be significantly improved.

According to the invention described in claim 4 of the present application, the desulfurization device is provided in the combustion gas flue of the convection heat transfer portion of the combustion chamber, whereby the desulfurization efficiency of the entire device is improved in addition to the effects of the above invention. It is possible to improve, and for example, it is possible to comply with strict exhaust gas regulations. According to the invention of claim 5 of the present application, the HRS
By providing a radiant reheater in a combustion chamber having a burner, in addition to the effects of the above invention, the heating value of each HRS burner is controlled to form a plurality of temperature zones in the boiler combustion chamber,
Thereby, the reheated steam temperature can be adjusted by the combustion chamber Zone Control method, which controls the heat absorption amount of the reheated steam in the radiant reheater.

According to the sixth aspect of the present invention, the HRS burner is used as the combustion device, and the sulfur oxide in the exhaust gas discharged from the burner is removed by the desulfurization device provided at the outlet of the HRS burner. By doing so, the heat transfer area heat load in the boiler combustion chamber becomes uniform, the heat generation rate in the combustion chamber is improved, and the exhaust gas having a sufficiently low temperature can be effectively desulfurized.

According to the invention of claim 7 of the present application, a radiant superheater is provided in the combustion chamber, and steam generated in the combustion chamber boiler is introduced into the radiant superheater to be superheated steam, and at the same time, the burner device By adjusting the heat generation amount and adjusting the heat absorption amount of the superheated steam in the radiant superheater, the superheated steam temperature can be arbitrarily adjusted in addition to the effect of the invention.

According to the invention of claim 8 of the present application, in addition to the effect of the above invention, by providing a heat transfer tube in the convection heat transfer section of the combustion chamber and contacting with a part of the combustion exhaust gas to recover heat, The thermal efficiency of the entire device is improved. According to the invention of claim 9 of the present application, a desulfurization device is provided in the outlet pipe of the convection heat transfer part of the combustion chamber, and the sulfur oxide contained in the exhaust gas flowing out from the convection heat transfer part is provided by using the desulfurization device. By removing, the desulfurization efficiency of the entire apparatus is improved in addition to the effects of the above invention.

According to the invention of claim 10 of the present application, a radiant reheater is provided in the combustion chamber, and steam that has finished work is introduced into the radiant reheater to be reheated steam, and at the same time, the combustion chamber By forming a plurality of temperature zones in the combustion chamber by adjusting the amount of heat generated by the burner device, and adjusting the heat absorption amount of the reheated steam in the radiant reheater by controlling the temperature of the temperature zones, In addition to the effects of the invention, reheated steam at an arbitrary temperature can be obtained.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a high-speed switching heat storage type combustor (HRS burner) used in the present invention.

FIG. 2 is an explanatory diagram showing a radiant boiler apparatus according to an embodiment of the present invention.

FIG. 3 is an explanatory view showing another embodiment of the present invention.

FIG. 4 is an explanatory view showing another embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a conventional technique.

[Explanation of symbols]

1 ... Heat transfer part, 2, 3 ... Heat accumulator, 4, 5 ... Combustion burner, 6
... 1st system combustor, 7 ... 2nd system combustor, 8 ... Air piping, 9 ... Four-way valve, 10, 11 ... Connecting pipe, 12 ... Combustion air, 13 ... Fuel, 14 ... Combustion exhaust gas, 21 ... Boiler Combustion chamber, 22 ... 1st series HRS burner, 23 ... 2nd series HRS burner, 24 ... Radiant superheater, 25 ... Economizer, 26 ... Switching valve, 27, 28 ... Connection piping, 29 ... Combustion air, 30, 31 … Desulfurization equipment, 32… Exhaust gas flues, 3
3 ... Chimney, 34 ... Water supply, 35 ... Water supply heater, 36 ... Boiler water supply pump, 37 ... Boiler drum, 38 ... Fuel, 39
... Generated steam, 40 ... Combustion exhaust gas, 42 ... Wastewater, 43 ... Filter, 44 ... Exhaust gas piping, 45 ... Radiant reheater.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Tatsuo Mitsui Tatsuo Mitsui 3-1-1 Tamama, Okayama Prefecture Mitsui Engineering & Shipbuilding Co., Ltd. Tamano Works (72) Inventor Ryoichi Tanaka 2-1-1 Shirute, Tsurumi-ku, Yokohama-shi, Kanagawa No. 53 In Japan Furnace Industry Co., Ltd. (72) Inventor Riki Yasuda 2-3-1, Shirute, Tsurumi-ku, Yokohama-shi, Kanagawa Inside Furnace Industry Co., Ltd.

Claims (10)

[Claims] 1. A radiant boiler apparatus having a combustion chamber having a boiler heat transfer surface, a convection heat transfer section of the combustion chamber, and a combustion device provided in the combustion chamber, wherein a combustion burner is used as the combustion device. And a two-system combustor having a heat storage type heat exchanger provided in an air introduction section to the combustion burner, a connecting pipe interconnecting the combustion exhaust gas outlets of the two-system combustor, and the two system Using a burner device equipped with a gas pipe connected to each of the air introduction parts and a line switching means provided in the connection part of the gas pipes, a desulfurization device is provided at the exhaust gas outlet of the burner device. Characteristic radiation type boiler device. 2. The radiant boiler apparatus according to claim 1, wherein a radiant superheater is provided in the combustion chamber. 3. The radiant boiler apparatus according to claim 1, wherein a heat transfer tube is provided in a convection heat transfer section of the combustion chamber. 4. The radiant boiler apparatus according to claim 3, wherein a desulfurization device is provided in an exhaust gas flue of a convection heat transfer section of the combustion chamber. 5. The radiant boiler apparatus according to claim 1, wherein a radiant reheater is provided in the combustion chamber. 6. The steam generation method by the radiant boiler apparatus according to claim 1, wherein combustion exhaust gas generated when a combustion burner of one combustor of two combustors of the burner apparatus is combusted. To the heat storage type heat exchanger of the combustor of the other system to recover and accumulate the heat quantity of the combustion exhaust gas, while generating the combustion exhaust gas when the combustion burner of the combustor of the other system is burned. The heat quantity is recovered and accumulated by being passed through the heat storage type heat exchanger of the one-system combustor, and the heat quantity of the combustion exhaust gas of the burning burner is sequentially stopped by the line switching means while the combustion is stopped. Combustion is performed as a heat source for the combustion air that is stored in the heat storage heat exchanger of the combustor and then burns, and the generated combustion gas heats the boiler heat transfer surface to generate steam and Sulfur in gas A steam generation method, wherein oxides are removed by a desulfurization device provided at the outlet of the burner device. 7. The steam generated in the combustion chamber boiler is introduced into a radiant superheater provided in the combustion chamber to be superheated, and the heat generation amount of the burner device is adjusted to provide a plurality of temperature zones in the combustion chamber. 7. The steam generation method according to claim 6, wherein the heat absorption amount of the superheated steam in the radiant superheater is adjusted by controlling the temperature of the temperature zone. 8. The method according to claim 6, wherein a part of the combustion exhaust gas of the burner device is introduced into a convection heat transfer section of the combustion chamber, and heat is recovered by a heat transfer tube provided in the convection heat transfer section. 7. The steam generation method according to 7. 9. The exhaust gas after the heat recovery is introduced into a desulfurization device provided in an exhaust gas flue of the convection heat transfer section to remove sulfur oxides contained in the exhaust gas. Steam generation method described in. 10. The steam which has finished the work is introduced into a radiant reheater provided in the combustion chamber to be reheated, and the heat generation amount of a burner device provided in the combustion chamber is adjusted to adjust the heat generation. 10. A plurality of temperature zones are formed in each of the plurality of temperature zones, and the temperature of the temperature zones is controlled to adjust the heat absorption amount of the reheated steam in the radiant reheater. Steam generation method.