KR20120056738A - Hot air and water boiler - Google Patents

Abstract

PURPOSE: A hot air and hot water boiler is provided to improve combustion efficiency and heat exchange efficiency by heating air passing through a heat transfer pipe with combustion heat generating in combustion. CONSTITUTION: A hot air and hot water boiler comprises a hydrolyzing and supplying unit(30), first, second, third, and fourth re-combustion units(40,60,70,90), and a magnetic field generating unit(80). The hydrolyzing and supplying unit separates a small amount of supplied water to hydrogen molecules and oxygen molecules by combustion heat. Electromagnets(81) of the magnetic field generating unit generate strong magnetic fields. Impact delivered from the magnetic fields is applied to solid fuel and water elements so that the water can be easily separated to molecules and the elements of the solid fuel is easily degraded, thereby being activated combustion. The first, second, third, and fourth re-combustion units temporarily stores the combustion heat to re-combust incomplete combustion gas.

Description

Hot air and water boiler

The present invention relates to a hot air and hot water boiler, and more specifically, hydrogen generated while vaporizing and separating a small amount of water supplied from the water supply unit with combustion heat generated when the solidified fuel supplied upward by the screw pin is burned in the combustion unit. In addition to oxygen, combustion is activated by a strong magnetic field generated by a large number of electromagnets installed on the outer wall and by far infrared rays and anions generated by a mixture formed therein, and the first and second reburn parts, While the combustion heat is temporarily stored in the fourth reburn unit, the incomplete combustion gas is burned again, and the combustion heat generated during combustion warms the air passing through the heat transfer tube arranged to intersect the exhaust pipe of the hot air chamber, and at the same time, the cylindrical shape of the heating chamber By heating the water in the heating section, the solidified fuel and water elements are separated by molecular separation. It relates to a hot-air and hot water boiler which also maximizes the heat exchange efficiency with an increase in combustion efficiency due to the combustion.

In general, small-scale farming and fishing companies use energy other than electricity for wheel-carrying agricultural machinery, and heat is mainly used for post-processing such as agri-food or drying of agricultural and aquatic products.

For example, heat is used for growing specialty crops, high value crops, for drying agricultural products, or for livestock raising.

Most of the heating methods used by agriculture, fisheries, livestock and small enterprises are space heating. Therefore, most of the heating is inferior in heat efficiency but uses hot air. However, hot water or hot water is required for warming and cooling of the management building for nutrient solution management, crop cleaning, and commercial management. In particular, in the case of livestock farming and agricultural processing, the use of hot water is the basis.

Therefore, farming and fishing villages and small enterprises also need hot air and hot water or hot water boilers.

Up to now, both a hot air heater and a boiler have been purchased and installed.

The temperature of the hot air produced can be controlled and the temperature of the hot water can be controlled.

The hot air water heater is equipped with an exhaust gas purification device to collect dust and remove harmful gases.

It has a function of purifying air in the heating room, and the air purifying method is filtration, ion exchange, incineration, substitution, washing and anion discharge.

In fact, in the case of livestock farming, the amount of air exchange is naturally minimized for keeping the inside of the breeding room. In this case, the indoor air becomes the worst state than expected by the anaerobicization of the respiratory sampling of livestock.

In the case of broilers, various dusts are generated by the wings of chickens, and indoor air pollution adversely affects the health and harms the livestock, causing stress, drug overuse, increased free radicals in the livestock, and various diseases. , Slowing growth, increasing mortality, and causing each associated communicable disease. As a result, the quality of livestock products decreases, productivity decreases, profitability deteriorates, and competitiveness is weakened.

Therefore, when heating, of course, in order to prevent heat loss to block the air exchange with the outside, because of this, the indoor air is insufficient oxygen ,. Phenomenon such as increase of active oxygen group, increase of pollutant gas group, dust, odor, decrease of anion, increase of cation and increase of microbial bacteria.

Although the indoor environment deteriorates like this, it is currently difficult to use a separate device such as an air purifier, but such an air purifier is difficult to use due to its excessive performance and function and excessive cost.

When heating, if the thermal stratification phenomenon occurs in which the temperature of the room is higher in the room and lower as the temperature is lowered,

The floor used mainly indoors has a low temperature, and the unused ceiling is relatively warm, so there is no sense of heating because it does not have a sense of heating, and the energy is excessively used for bodily heating.

When the thermal stratification phenomenon occurs, the amount of energy loss due to energy conversion to convert thermal energy into work energy increases. The heat loss due to energy conversion increases as the temperature increases.

Therefore, if the thermal stratification occurs, the energy loss in the upper part of the kennel has nothing to do with haptic heating, so it can lose a lot of heat without using it.

When the thermal stratification phenomenon occurs, a lot of heat is lost due to leakage to the outside through the upper layer. In addition, since the warming conditions of the livestock farms or crop plantations are inferior to those of the houses, the amount of heat leakage due to this is naturally higher.

In the case of crop cultivation, carbon dioxide is needed for carbon assimilation of crops. In addition, greenhouse cultivation is necessary to grow cultivated crops as needed and crop cultivation in an isolated indoor space because the absolute amount of carbon dioxide required for carbon assimilation during the day is insufficient, thus supplying carbon dioxide gas for successful and profitable crop cultivation. This is necessary. In addition, when the crop is being grown at night or especially in a barn, the oxygen is insufficient in the room, so oxygen must be supplied.

In winter, most places are equipped with heating means such as stoves, heaters, and hot air heaters to relax human body muscles, preventing safety accidents and increasing work efficiency. A device for raising the overall room temperature by heating an indoor floor, such as a device for blowing hot air into a space or a boiler, is provided.

At this time, the hot air blower burns fuel and blows this combustion heat directly into the indoor space through the blower fan to raise the indoor temperature. It is common to use fuel such as kerosene or LPG, and the boiler heats the water to heat the indoor floor. It is a device that heats the floor by circulating through the circulation pipe installed on the surface to provide warmth to the human body directly through the indoor floor surface, which is a contact part of the human body, or to raise the overall room temperature by radiant heat to perform heating. It is common to use fuels such as briquettes, kerosene, LPG and LNG.

However, the hot air blower is expensive due to the use of expensive fuel, and in particular, when supplying hot air to a large place such as a plastic house in a farmhouse, the fuel cost burden is further increased and commercialized cultivated vegetables or fruits. The consumer's point of view is that the price of the product is high, which imposes a burden on the household. The farmer's point of view is that there are not many profits.In the case of boilers, expensive fuel is used and its low capacity is limited, so the burden of fuel costs is high. Of course, the use of hot water was limited.

And both the hot air heater and the boiler are for heating, but the characteristics are different, and it is better to have these hot air heaters and boilers at the same time, but the hot air heater and the boiler are separate, so it is expensive to purchase each device, and the fuel cost is doubled. There was a problem.

Utility Model Registration Application No. 20-2000-0020128 filed on July 13, 2000 (wood and coal-fired hot air boiler) was proposed.

The present invention relates to a wood- and coal-fired hot air combined-use boiler configured to integrally use a hot air and hot water to circulate hot water to circulate hot water, and to selectively use wood or coal as fuel.

To this end, the present invention includes a removable fuel supply unit having a wood supply hopper and a coal supply hopper, respectively;

A fuel input portion having a four-pipe body with a pedestal gear and a leg gear driven by a motor inserted into the pedestal so that the pedestal can be vertically moved therein;

A fuel supply amount adjusting unit having sensors on the fuel input unit and the main body, respectively, to block fuel supply from the fuel supply unit according to the distance detection signal;

A burner mounted on the bottom of the pedestal of the fuel input section and igniting the fuel placed on the pedestal through the burner;

A fixed roller and a movable roller are connected to the bottom of the pedestal base of the fuel input unit and the upper edge of the bottom by the letter '자로', and one movable roller is connected to the lower part of the rear of the main body through the connecting strap to raise / lower the combustion part according to the removal of the fuel input unit. With the lifting section to let

A blower for discharging hot air to the rear of the blower pipe by installing a plurality of blower pipes in the horizontal direction at the upper end of the main body;

It consisted of the circulation part which heats water by the fire of a combustion part, and circulates to a boiler, and the exhaust part which collects the smoke of a combustion part and exhausts it to the outside.

Patent application No. 10-2004-0013751 dated February 28, 2004 (Hot water heater with hot air) was proposed.

It is, there is an exhaust port connected to the communication in one side, the inner box is provided with a combustion section,

Two or more heat sinks inserted into the inner box and having two or more holes having a predetermined diameter;

A water pipe formed surrounding the entire outside of the inner box,

An enclosure including the inner box and the water pipe and having a water supply port and a water exhaust port connected to the water pipe,

A heat storage space formed between the inner box and the outer box and having two or more plates in which two or more holes having a predetermined diameter are inserted.

By including the air inlet and the air outlet formed in the enclosure to facilitate heat transfer using the heat-dissipating heat sink and plate, the thermal efficiency is improved, and there is no need for a separate burner to prevent the problem of noise, and complete combustion The emission of harmful exhaust gas is significantly reduced and energy saving is realized.

However, there is a problem of the thermal efficiency according to the conventional hot air combined boiler as described above to warm the hot water while blowing hot air, as well as the relatively high consumption of combustion, as well as the supply of heating and hot air In order to solve the deterioration of the environment and to solve this problem, there is a problem that excessive energy loss caused by air purification occurs.

Accordingly, the present invention is to solve the conventional problems as described above, by generating the vaporized separation of a small amount of water supplied from the water supply unit with the combustion heat generated when the solidified fuel supplied by the screw pin in the combustion unit. The combustion is activated by the strong magnetic field generated by the electromagnets installed on the outer wall and the far infrared rays and anions generated by the mixture formed therein, and the first reburn part, the second reburn part, and the third In the reburn section and the fourth reburn section, the incomplete combustion gas is burned again while temporarily storing the heat of combustion, and the heat of combustion passing through the heat transfer tube arranged to intersect the exhaust pipe of the hot air chamber with the heat of combustion generated during the combustion is also heated. Molecules of solidified fuels and water It is an object of the present invention to provide a hot air and hot water boiler that maximizes heat exchange efficiency while increasing combustion efficiency by complete combustion while separating.

Hot air and hot water boiler of the present invention for achieving the above object,

The base plate of the combustion chamber, which is initially ignited by the fire power supplied from a general ignition device, is formed as a lattice plate having a small groove so that the ash is automatically discharged to the bottom, and the solidified fuel is continuously supplied and combusted through a fuel supply pipe with a screw pin.

In the first blower for supplying air upward through the air supply port of the disc-shaped air supply pipe installed below the combustion chamber, a part of the air is supplied to the fuel supply pipe to enable smooth transfer of the solidified fuel.

The water supply unit provided in a circumferential shape around the combustion unit supplies water supplied in small quantities through a plurality of holes in the cylindrical water supply port, and the combustion efficiency is increased by hydrolysis while separating hydrogen molecules and oxygen molecules by the heat of combustion during combustion. To increase the

The first reburn unit located on the upper end of the combustion unit forms a steel mesh made of iron chromium in a cochlear shape to roll up a cylinder to temporarily heat the combustion heat,

In the focal combustion unit integrally formed on the upper surface of the first reburn unit, the combustion gas passing through the space inside the small cylinder made of a plurality of iron chromium is collected in the hemispherical shape and is incomplete while rising through the upper combustion gas discharge pipe. To burn the combustion gas in the combustion state again,

The second reburn unit located around the combustion unit and the first reburn unit consists of a first packed layer of small particles of ceramics made of alumina, molybdenum, ceramic, tourmaline, and elvan, and far-infrared rays for activating combustion. Combustion gas is activated by combustion heat by raising the temperature of the combustion chamber with the heat of combustion which is accumulated while releasing negative ions.

The third reburn section, located directly above the focal burn section, consists of a second packed bed of small particles of ceramics made of alumina, molybdenum, ceramic, tourmaline, and elvan, inside the cylinder made of iron chromium. To re-burn the combustion gas rising in the state of incomplete combustion while accumulating,

The magnetic field generating unit having electromagnets installed on the four outer surfaces of the combustion unit is provided with a strong magnetic force generated from the electromagnet to the combustion unit to boost the spark during combustion to the center of the combustion unit, while the magnetic field is an element of solidified fuel and water Impact the field to facilitate separation into molecules,

The hot wind chamber at the upper end of the third reburn unit allows the combustion gas moving upward to pass through a plurality of exhaust pipes and to be re-burned by the iron chromium network on the upper surface and the packed bed inside while rising to the exhaust unit equipped with the dust collector. A plurality of heat transfer tubes connected to each other and arranged in a radial manner to heat the air introduced through one air inlet by the fan to be discharged to the other air outlet,

The heating chamber receives the heat of combustion generated during combustion in the combustion chamber including the combustion section, the first reburn section, the second reburn section, the third reburn section, and the fourth reburn section, and the water supplied through the water supply pipe is provided in the cylindrical heating section. It is configured to be heated and discharged through the hot water discharge pipe.

In the hot air and hot water boiler according to the present invention described above, the solidified fuel supplied from the outside is combusted with combustion heat of 1400 ° C. or more in the combustion unit,

The small amount of water supplied from the water supply section is vaporized and at the same time, a strong magnetic field generated by a large number of electromagnets installed on the outer wall is transmitted to the inside, so that the solidified fuel and the elements of the water are shocked to facilitate separation into molecules. Easy decomposition of the constituent elements to enable combustion

To burn the incomplete combustion gas again while temporarily storing the heat of combustion in the first reburn unit, the second reburn unit, and the third reburn unit,

The combustion heat generated during combustion warms the air passing through the heat transfer tubes arranged to intersect the exhaust pipe of the hot air chamber, and heats the water in the cylindrical heating part of the heating chamber, thereby completely separating the fuel and water elements of the flame retardant by completely separating the elements. In addition to the increase in combustion efficiency by the heat exchange efficiency is also effective.

1 is a cross-sectional view schematically showing the overall configuration of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Hot air and hot water boiler according to the present invention,

At the lower end of the main body 1 having the thermal insulation effect by the heat insulating layer 2, a combustion chamber A for burning solidified fuel and a heating chamber B for heating water are formed, and a hot air chamber 60 for warming air is formed at the upper end. Form,

The base plate 11 of the combustion chamber 10 that is initially ignited by the thermal power supplied from a general ignition device is formed as a grating plate 12 having a small groove, so that ash is automatically discharged to the lower end, and the fuel supply pipe with the screw pins 14 embedded therein. (13) to continue supplying solidified fuel to burn,

In the blower 20 for supplying air upward through the air supply port 22 of the disc-shaped air supply pipe 21 installed below the combustion chamber A, a part of the air is supplied to the fuel supply pipe 13. To facilitate the smooth transfer of solidified fuel,

The water supply unit 30 installed circumferentially around the combustion unit 10 supplies a small amount of water to be supplied through a plurality of holes 32 of the cylindrical water supply port 31 to form hydrogen molecules by the heat of combustion during combustion. To increase combustion efficiency by hydrolysis while separating into

The first reburn unit 40 located at the upper end of the combustion unit 10 forms a steel mesh made of iron chromium into a cylindrical network 41 rolled into a cochlear shape to temporarily regenerate combustion heat.

In the focal combustion section 50 integrally formed on the upper surface of the first reburn section 40, the combustion gas passing through the spaces inside the small cylindrical network 51 made of a plurality of iron chromium is formed inside the hemispherical body 52 ( 53 and burned again the combustion gas in an incomplete combustion state while rising through the upper combustion gas discharge pipe 54,

The second reburn unit 60 positioned around the combustion unit 10 and the first reburn unit 40 may include a first filling in which small grains obtained by ceramicizing alumina, molybdenum, ceramic, tourmaline, and elvan are materials. Composed of the layer 61 to increase the temperature of the combustion chamber with the heat of combustion that is accumulated while releasing far-infrared rays and anions that activate combustion, to activate the combustion gas combustion,

The third reburn section 70 located directly above the focal burn section 50 has a second filling in which small grains made of alumina, molybdenum, ceramic, tourmaline, and elvan are mixed into a cylinder made of iron chromium. Composed of the layer 71 to temporarily regenerate the heat of combustion and to burn again the combustion gas rising to the state of incomplete combustion,

The magnetic field generating unit 80 having the electromagnet 81 installed on four surfaces of the main body 1 outside the combustion unit 10 is provided with a strong magnetic force generated by the electromagnet to the combustion unit 10 to burn. At the same time, the flame is pushed to the center of the combustion section, and at the same time, the magnetic field impacts the elements of solidified fuel and water to facilitate separation into molecules.

The fourth reburn section 90 of the upper surface of the third reburn section 70 is reburned by the iron chromium network 91 and the filling layer 92 therein, and a plurality of heat transfers are arranged radially inside and connected to each other. To efficiently heat the water flowing through the tube (93),

The hot wind chamber C at the upper end of the fourth reburn unit 90 passes through a plurality of exhaust pipes 101 through which combustion gas moves upward to an exhaust unit 100 provided with a dust collector (not shown). While rising, the air introduced through one air inlet 103 by the fan 102 is warmed up and discharged to the other air outlet 104,

Heating chamber (B) is in the combustion chamber (A) consisting of the combustion section 10, the first reburn section 40, the focus burn section 50, the second reburn section 60, the third reburn section 70 The water supplied through the combustion heat generated during combustion is configured to be heated through the water supply pipe 111 is heated in the cylindrical heating unit 110 and discharged through the hot water discharge pipe (112).

The hot wind and hot water boiler of the present invention configured as described above forms a combustion chamber (A) for burning solidified fuel at the lower end of the main body (1) having a thermal insulation effect by the heat insulating layer (2) (C) ) To maximize the combustion efficiency and heat exchange efficiency by forming a heating chamber (B) for heating water on the outer surface,

The base plate 11 of the combustion chamber 10 that is initially ignited by the thermal power supplied from a general ignition device is formed as a grating plate 12 having a small groove, so that ash is automatically discharged to the lower end, and the fuel supply pipe with the screw pins 14 embedded therein. Through (13), the solidified fuel is continuously supplied to combust.

Then, the solidified fuel supplied through the fuel supply pipe 13 is collected and ignited on the support plate 11, and after burning, the solidified fuel is continuously burned up by the combustion heat.

In the blower 20 for supplying air upward through the air supply port 22 of the disc-shaped air supply pipe 21 installed below the combustion chamber A, a part of the air is supplied to the fuel supply pipe 13. It allows for the smooth transport of solidified fuel.

The water supply unit 30 installed circumferentially around the combustion unit 10 supplies a small amount of water to be supplied through a plurality of holes 32 of the cylindrical water supply port 31 to form hydrogen molecules by the heat of combustion during combustion. The combustion efficiency is increased by hydrolysis during the separation of and oxygen molecules.

In general, high heat is required to convert water into hydrogen and oxygen, but by directly supplying a point where a small amount of water is burned, decomposition into molecules is facilitated by heat of combustion and expansion of instantaneous pressure.

That is, the water injected and supplied through the plurality of holes 32 of the water supply port 31 is separated into hydrogen molecules and oxygen molecules by combustion heat of 1400 ° C. or more during combustion, thereby improving combustion efficiency by hydrolysis.

The first reburn unit 40 located at the upper end of the combustion unit 10 forms a steel mesh made of iron chromium into a cylindrical network 41 rolled into a cochlear shape to temporarily regenerate combustion heat.

In the focal combustion section 50 integrally formed on the upper surface of the first reburn section 40, the combustion gas passing through the spaces inside the small cylindrical network 51 made of a plurality of iron chromium is formed inside the hemispherical body 52 ( 53 and burned again the combustion gas in an incomplete combustion state while rising through the upper combustion gas discharge pipe 54,

When the combustion gas and the heat of combustion are temporarily collected inside the hemispherical body 51 of the hemispherical focal combustion part 50, the heat of combustion in the hemispherical body 51 is influenced by the heat of combustion introduced into the inside and the heat of heat reflected by the inner surface. By the combustion heat is intensively burned at one point, such as the focus by the convex lens in the hemispherical body 51 by the active combustion is made around that point to rise through the small combustion gas discharge pipe 54 of the upper end .

The second reburn unit 60 positioned around the combustion unit 10 and the first reburn unit 40 may include a first filling in which small grains obtained by ceramicizing alumina, molybdenum, ceramic, tourmaline, and elvan are materials. Composed of the layer 61 to raise the temperature of the combustion chamber by the heat of combustion that is accumulated while releasing far-infrared rays and anions that activate the combustion to activate the combustion gas combustion.

The third reburn section 70 located directly above the focal burn section 50 has a second filling in which small grains made of alumina, molybdenum, ceramic, tourmaline, and elvan are mixed into a cylinder made of iron chromium. Composed of the layer 71, the combustion gas rising in the state of incomplete combustion while the heat of combustion is temporarily stored, is burned again.

The magnetic field generating unit 80 having the electromagnet 81 installed on four surfaces of the main body 1 outside the combustion unit 10 is provided with a strong magnetic force generated by the electromagnet to the combustion unit 10 to burn. At the same time, the flame is pushed towards the center of the combustion section, while the magnetic field impacts the elements of the solidified fuel and water to facilitate separation into molecules.

The fourth reburn section 90 of the upper surface of the third reburn section 70 is reburned by the iron chromium network 91 and the filling layer 92 therein, and a plurality of heat transfers are arranged radially inside and connected to each other. It is to efficiently heat the water flowing through the tube (93).

The hot wind chamber C at the upper end of the fourth reburn unit 90 passes through a plurality of exhaust pipes 101 through which combustion gas moves upward to an exhaust unit 100 provided with a dust collector (not shown). While rising, the air introduced through one air inlet 103 by the fan 102 is warmed and discharged to the other air outlet 104.

Heating chamber (B) is in the combustion chamber (A) consisting of the combustion section 10, the first reburn section 40, the focus burn section 50, the second reburn section 60, the third reburn section 70 The water supplied through the combustion heat generated during the combustion is supplied through the water supply pipe 111 to be heated in the cylindrical heating unit 110 to be discharged through the hot water discharge pipe 112.

At this time, while detecting the temperature of the water heated by the temperature sensor to discharge the hot water of the desired temperature.

And by adjusting the amount of the solidified fuel supplied to the combustion unit 10 in accordance with the temperature of the hot water or hot air to obtain hot water and hot air of the desired temperature.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the scope of the invention. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.

A: combustion chamber B: heating chamber
C: hot air chamber 10: combustion chamber
20: blower 30: water supply unit
40, 60, 70, 90: reburn section 50: focus combustion section
80: magnetic field generating unit

Claims (1)

At the lower end of the main body 1 having the thermal insulation effect by the heat insulating layer 2, a combustion chamber A for burning solidified fuel and a heating chamber B for heating water are formed, and a hot air chamber 60 for warming air is formed at the upper end. Form,
The base plate 11 of the combustion chamber 10 that is initially ignited by the ignition device is formed as a grating plate 12 having a small groove while continuing to supply the solidified fuel through the fuel supply pipe 13 having the screw pins 14 embedded therein. ,
In the blower 20 which supplies air upward through the air supply port 22 of the disc-shaped air supply pipe 21 installed below the combustion chamber A, a part of the air is supplied to the fuel supply pipe 13. and,
The water supply unit 30 installed circumferentially around the combustion unit 10 supplies a small amount of water to be supplied through a plurality of holes 32 of the cylindrical water supply port 31 to form hydrogen molecules by the heat of combustion during combustion. And oxygen molecules,
The first reburn unit 40 located at the upper end of the combustion unit 10 is formed of a cylindrical mesh 41 rolled iron mesh of cochlear shape,
In the focal combustion section 50 integrally formed on the upper surface of the first reburn section 40, the combustion gas passing through the spaces inside the small cylindrical network 51 made of a plurality of iron chromium is formed inside the hemispherical body 52 ( 53) to rise through the upper combustion gas discharge pipe 54,
The second reburn unit 60 positioned around the combustion unit 10 and the first reburn unit 40 may include a first filling in which small grains obtained by ceramicizing alumina, molybdenum, ceramic, tourmaline, and elvan are materials. Layer 61,
The third reburn section 70 located directly above the focal burn section 50 has a second filling in which small grains made of alumina, molybdenum, ceramic, tourmaline, and elvan are mixed into a cylinder made of iron chromium. Layer 71,
In the magnetic field generating unit 80 in which the electromagnet 81 is installed on four surfaces outside the main body 1 in which the combustion unit 10 is located, the strong magnetic force generated in the electromagnet and the magnetic field affect the combustion unit 10. So that
The fourth reburn section 90 of the upper surface of the third reburn section 70 is reburned by the iron chromium network 91 and the filling layer 92 therein, and a plurality of heat transfers are arranged radially inside and connected to each other. To efficiently heat the water flowing through the tube (93),
Hot air chamber (C) at the upper end of the fourth reburn unit 90 is the one side air by the fan 102 while the combustion gas moving upwards passes through the plurality of exhaust pipes 101 to the exhaust unit 100 The air introduced through the inlet 103 is warmed and discharged to the other air outlet 104,
Heating chamber (B) is in the combustion chamber (A) consisting of the combustion section 10, the first reburn section 40, the focus burn section 50, the second reburn section 60, the third reburn section 70 Hot air and hot water boiler, characterized in that the water supplied through the combustion heat generated during combustion is supplied through the water supply pipe 111 is heated in the cylindrical heating unit 110 and discharged through the hot water discharge pipe (112).

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