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WO2002093076A1 - Combustion device for gas boiler - Google Patents

Combustion device for gas boiler Download PDF

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Publication number
WO2002093076A1
WO2002093076A1 PCT/KR2002/000906 KR0200906W WO02093076A1 WO 2002093076 A1 WO2002093076 A1 WO 2002093076A1 KR 0200906 W KR0200906 W KR 0200906W WO 02093076 A1 WO02093076 A1 WO 02093076A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
combustion device
burner
top side
inducing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2002/000906
Other languages
French (fr)
Inventor
Keunhong Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seil Architecture & Engineering Co
Original Assignee
Seil Architecture & Engineering Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR10-2001-0026959A external-priority patent/KR100405241B1/en
Priority claimed from KR10-2001-0026958A external-priority patent/KR100405242B1/en
Application filed by Seil Architecture & Engineering Co filed Critical Seil Architecture & Engineering Co
Publication of WO2002093076A1 publication Critical patent/WO2002093076A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/10—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/16—Induction apparatus, e.g. steam jet, acting on combustion products beyond the fire

Definitions

  • the present invention relates to a combustion device for a gas boiler, and more particularly, to a combustion device for a gas boiler that is capable of supplying air to the flames ejected from a burner header to thereby achieve the complete combustion of a gas, and that is capable of disposing a heat exchanger in such a manner as to be adjacent to a burner to thereby improve heat exchange efficiency.
  • FIG. 1 is a sectional view of a conventional combustion device for a gas boiler.
  • the conventionally developed combustion device for the gas boiler comprises a plurality of injection nozzles 1 for injecting the gas supplied from the outside, a flame hole 2a formed on the top side of the front portion of each of the injection nozzles 1, a burner body 2 with a gas passage 2b formed up to the flame hole 2a, and a heat exchanger 3 separated by a predetermined distance on the top portion of the burner body 2.
  • the gas that is injected from the injection nozzles 1 is passed through the gas passage 2b to mix with air and then ignited on the flame hole 2a of the burner body 2 to heat the heat exchanger 3 on the upper portion.
  • the combustion device for the gas boiler should, however, have a combustion chamber 4 that is substantially high in height since the length of the flame of the gas from the flame hole 2a is substantially long.
  • FIG. 2 is a sectional view of another conventional combustion device for a gas boiler.
  • the conventionally used combustion device for the gas boiler includes a nozzle 6 to which gas is supplied that is disposed on the lower side of a cylindrical burner 5 and a cylindrical heat exchanger 7 that is formed on the outer periphery of the cylindrical burner 5.
  • the cylindrical heat exchanger 7 comprises an inner tank 7a and an outer tank 7b, and a heat exchanger tube 7c disposed between the inner tank 7a and the outer tank 7b.
  • the gas ejected from the nozzle 6 is ignited to heat a heating part 5a of the cylindrical burner 5 and with the heat generated from the heating part, the water passing through the heat exchanger tube 7c is heated.
  • the conventional combustion device for the gas boiler as shown in FIG. 2 may cause an undesirable yellow flame due to the incomplete combustion process and may produce a generally weak force of the flame.
  • a combustion device for a gas boiler that is capable of supplying air (that is, oxygen) to the flames injected from a plurality of burner tips to achieve the complete combustion of a gas, whereby even through a heat exchanger is disposed adjacent to the combustion device, it can prevent the generation of yellow flames.
  • a combustion device for a gas boiler which includes: a burner header having a plurality of burner tips from which gases are ejected; a flame inducing member having the side wall to which the flames ejected from the plurality of burner tips are induced, a generally hollow part formed in the interior thereof, and a plurality of air supply holes connected to the outside pierced thereon; an air ejecting member disposed on the top side of the flame inducing member, the air ejecting member having an air inducing passage formed in the interior thereof to communicate with the hollow part, and a plurality of air ejecting holes formed on the inner periphery thereof; and a blowing fan supplying air to the hollow part of the flame inducing member.
  • the burner header further comprises a support plate on which an elongated hole from which the air is supplied to the plurality of burner tips is at both sides formed, a connecting pipe formed on the top side of the support plate and having a gas supply inlet formed on the one side, and a nozzle pipe connected to the both ends of the connecting pipe, respectively and having the plurality of burner tips disposed on the top side.
  • the flame inducing member is of a generally square shape and has at least one or more stepped face, on which the plurality of air supply holes are formed.
  • the air ejecting member is provided with a plurality of air injection holes that are protrusively formed on the top side.
  • a combustion device for a gas boiler which includes: a burner header having a gas supply hole formed on the one side thereof and a plurality of burner tips, from which gases are ejected, formed on the top side thereof; a first air tank formed on the lower portion of the burner header, the first air tank having a space part on the interior and a plurality of air ejecting holes on the top side thereof; a second air tank having an air inducing pipe communicating with the first air tank on the lower side thereof, a flame inducing part for inducing the flames ejected from the plurality of burner tips to the top side on the upper side of the air inducing pipe, and a plurality of air ejecting holes on the outer periphery and top side of the flame inducing part; and a blowing fan supplying air to the first air tank and the second air tank.
  • the flame inducing part is large at the upper portion and small at the lower portion.
  • the second air tank includes a plurality of air injection holes that are protrusively formed on the top side.
  • the plurality of burner tips are disposed in a zigzag-arranged manner toward the flame inducing part and the cylindrical heat exchanger.
  • FIG. 1 is a sectional view of a conventional combustion device for a gas boiler
  • FIG. 2 is a sectional view of another conventional combustion device for a gas boiler
  • FIG. 3 is a perspective view of a combustion device for a gas boiler according to a first embodiment of the present invention
  • FIG. 4 is a top sectional view of the combustion device according to the first embodiment of the present invention
  • FIG. 5 is a side sectional view of the combustion device according to the first embodiment of the present invention.
  • FIG. 6 is a perspective view of a combustion device for a gas boiler according to a second embodiment of the present invention.
  • FIG. 7 is a sectional view of the combustion device according to the second embodiment of the present invention.
  • FIGS. 3 to 5 illustrate a combustion device for a gas boiler according to a first embodiment of the present invention.
  • a combustion device 100 for a gas boiler includes a burner header 10, a flame inducing member 20, an air ejecting member 30, and a blowing unit 40.
  • the burner header 10 further comprises a support plate 11 on which an elongated hole 11a from which air is supplied to a plurality of burner tips 14 is at both sides formed, a connecting pipe 12 formed on the top side of the support plate 11 and having a gas supply inlet 12a formed on the one side thereof, and a nozzle pipe 13 connected to the both ends of the connecting pipe 12, respectively and having the plurality of burner tips 14 disposed on the top side.
  • the support plate 11 is provided with a through hole lib on the center, through which a passage pipe 42 of the blowing unit 40 as will be discussed later is connected to supply air thereto.
  • Each of the burner tips 14, which is adapted to make the gas supplied as a mixed gas that is easy to be ignited, includes a nozzle hole 14a on the one side fixed on the burner header 10, a plurality of first air supply holes 14b on the outer periphery, and a fire outlet 14c on the other side.
  • each of the burner tips 14 is desirably inclined at an angle of about 45 °.
  • the flame inducing member 20, which is disposed between the nozzle pipes 13, is of a generally square shape, where the flames of the fire are collided against each other on the sides and rise upward, a hollow part 21 is formed on the interior, and a plurality of air supply holes 22 are formed on the top portion.
  • the flame inducing member 20 has at least one or more stepped face, on which the plurality of air supply holes 22 are formed.
  • the air ejecting member 30, which communicates with the hollow part 21 of the flame inducing member 20 for the purpose of ejecting air therefrom, is of a generally square ring shape, where an air inducing passage 31 is formed in the interior, a plurality of air injection holes 32 is formed on the top side, and a plurality of air ejecting holes 33 are protrusively formed on the inside periphery.
  • the blowing unit 40 is adapted to supply air to the hollow part 21 of the flame inducing member 20 and the air inducing passage 31 of the air ejecting member 30, and includes a blowing fan 41 shaft-coupled to a driving motor and the passage pipe 42 guiding the air from the blowing fan 41.
  • a reference numeral 70 denotes a heat exchanger and a reference numeral 80 represents a combustion chamber.
  • the gas that is supplied through the gas supply inlet 12a is forked at the connecting pipe 12 to move to the nozzle pipes 13 on the both sides, and the gas is then mixed with air at an appropriate mixing ratio on the plurality of burner tips 14 disposed on the top side of each of the nozzle pipes 13 and finally ignited to thereby generate the flames of the fire therefrom.
  • the air is supplied between the elongated holes 11a of the support plate 11 of the burner header 10 and firstly supplied to the first air supply hole 14b of each of the burner tips 14.
  • the mixing gas is ejected through the fire outlet 14c and as air is secondly supplied, the gas becomes in the mixing gas that is easy to be ignited.
  • the gas is ignited by an igniter and continues to be burnt as the gas and air are kept supplied.
  • the ignited mixing gas is ejected upward along the side wall of the flame inducing member 20 in the flame state and in this case, the flames are collided against the side wall such that incomplete gas may be produced.
  • the air is blown by virtue of the blowing unit 40 formed on the lower side of the flame inducing member 20 such that it is guided to the hollow part 21 of the flame inducing member 20, and the air guided is ejected to the outside through the plurality of air supply holes 22 and is added to the gas that is in the flame-colliding state ejected on the top side along the side wall of the flame inducing member 20 such that it makes the gas not burnt secondly burnt.
  • the re-burnt gas is moved to the top side, and the air supplied to the hollow part 21 of the flame inducing member 20 is supplied to the air inducing passage 31 of the air ejecting hole 30 through a communicating hole (which is not shown) such that it is ejected through the plurality of air injection holes 32 and the air ejecting hole 33.
  • a communicating hole which is not shown
  • the heat exchanger 50 which is disposed adjacent to the air injection holes 32, is heated by the strong force of fire that has been thirdly burnt.
  • FIGS. 6 and 7 illustrate a combustion device for a gas boiler according to a second embodiment of the present invention.
  • the combustion device 100 for the gas boiler includes a burner header 10, a first air tank 50, a second air tank 60 and a blowing unit 40.
  • the burner header 10 is of a generally cylindrical shape, and comprises a gas supply inlet 15 on the one side and a plurality of burner tips 14 from which gas is ejected on the top side.
  • Each of the burner tips 12 is inclined in a zigzag-arranged manner toward a flame inducing part 62 and a cylindrical heat exchanger 70, as will be discussed later.
  • the first air tank 50 is disposed on the lower portion of the burner header 10 and is provided with a space part 51 in the interior and a plurality of air ejecting holes 52 on the top side.
  • the second air tank 60 is disposed on the inside of the burner header 10 and the first air tank 50 and includes an air inducing pipe 61 communicating with the first air tank 50, the flame inducing part 62 disposed on the top side of the air inducing pipe 61 for guiding the flames ejected from the burner tips 12 to the top side, and a plurality of air ejecting holes 62a on the top side and outer periphery of the flame inducing part 62.
  • the flame inducing part 62 is large at the upper portion and is small at the lower portion.
  • the flame inducing part 62 is configured in such a manner as to easily raise the flames upward.
  • the flame inducing part 62 is provided with a plurality of air injection holes 62b that are protrusively formed on the top side.
  • the blowing unit 40 has the same construction as in the first embodiment, and an explanation of it will be avoided hereinafter.
  • a reference numeral 90 denotes the cylindrical heat exchanger.
  • the gas is supplied through the gas supply inlet 15 to the burner header 10, and the gas is then mixed with air at an appropriate mixing ratio on the plurality of burner tips 14 and then ignited toward the flame inducing part 62 and the heat exchanger 90. That is to say, the burner tips 14 form the mixed gas in the interior with the air supplied from the first air supply hole 14b and eject the mixed gas through the fire outlet 14c. At this time, the gas is mixed again with air such that it can be easily ignited, and the gas is ignited by an igniter and continues to be burnt as the gas and air are kept supplied. The ignited mixed gas is collided against the flame inducing part 62 and the heat exchanger 90 and in this case, the flames are collided against each other such that incomplete gas may be produced.
  • the air is blown by virtue of the blowing unit 40 formed on the lower side of the first air tank 50 such that it is guided to the space part 51 of the first air tank 50, and the part of air is ejected to the air ejecting hole 52 on the top side such that it makes the gas burnt from the burner tips 14 burnt again.
  • the air is ejected to the air ejecting hole 62a and the air injection hole 62b on the top side of the flame inducing part 62, through the air inducing pipe 61 that communicates with the first air tank 50, and is finally used to make the gas burnt again.
  • the combustion device for the gas boiler according to the present invention is applicable to houses, industries, generating stations, and so on.
  • the combustion device for the gas boiler according to the present invention can supply air to the flames from the gas that has been burnt until the gas is secondly and thirdly burnt, thereby making the gas completely burnt, such that an amount of gas consumed is reduced and a strong force of the fire is obtained.
  • the strong force of the fire acts in the inner periphery of the cylindrical heat exchanger, such that no yellow flames are generated from the gas, heating time is reduced, and heat efficiency is improved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

Disclosed is a combustion device for a gas boiler that is capable of supplying air (that is, oxygen) to the flames injected from a plurality of burner tips to achieve the complete combustion of a gas, whereby even through a heat exchanger is disposed adjacent to the combustion device, it can prevent the generation of yellow flames. The combustion device for a gas boiler includes: a burner header having a plurality of burner tips from which gases are ejected; a flame inducing member having the side wall to which the flames ejected from the plurality of burner tips are induced, a generally hollow part formed in the interior, and a plurality of air supply holes connected to the outside pierced thereon; an air ejecting member disposed on the top side of the flame inducing member, the air ejecting member having an air inducing passage in the interior to communicate with the hollow part, and a plurality of air ejecting holes on the inner periphery; and a blowing fan supplying air to the hollow part of the flame inducing member.

Description

COMBUSTION DEVICE FOR GAS BOILER
Technical Field
The present invention relates to a combustion device for a gas boiler, and more particularly, to a combustion device for a gas boiler that is capable of supplying air to the flames ejected from a burner header to thereby achieve the complete combustion of a gas, and that is capable of disposing a heat exchanger in such a manner as to be adjacent to a burner to thereby improve heat exchange efficiency.
Background Art
FIG. 1 is a sectional view of a conventional combustion device for a gas boiler.
As shown, the conventionally developed combustion device for the gas boiler comprises a plurality of injection nozzles 1 for injecting the gas supplied from the outside, a flame hole 2a formed on the top side of the front portion of each of the injection nozzles 1, a burner body 2 with a gas passage 2b formed up to the flame hole 2a, and a heat exchanger 3 separated by a predetermined distance on the top portion of the burner body 2. Under the above construction of the conventional combustion device for the gas boiler, the gas that is injected from the injection nozzles 1 is passed through the gas passage 2b to mix with air and then ignited on the flame hole 2a of the burner body 2 to heat the heat exchanger 3 on the upper portion.
The combustion device for the gas boiler should, however, have a combustion chamber 4 that is substantially high in height since the length of the flame of the gas from the flame hole 2a is substantially long.
That is to say, when the burner body 2 on which the flame hole 2a is formed is generally close to the heat exchanger 3, a yellow flame may be generated, and the gas may be incompletely burnt. FIG. 2 is a sectional view of another conventional combustion device for a gas boiler.
As shown, the conventionally used combustion device for the gas boiler includes a nozzle 6 to which gas is supplied that is disposed on the lower side of a cylindrical burner 5 and a cylindrical heat exchanger 7 that is formed on the outer periphery of the cylindrical burner 5.
The cylindrical heat exchanger 7 comprises an inner tank 7a and an outer tank 7b, and a heat exchanger tube 7c disposed between the inner tank 7a and the outer tank 7b.
Under the above construction of the conventional combustion device for the gas boiler, the gas ejected from the nozzle 6 is ignited to heat a heating part 5a of the cylindrical burner 5 and with the heat generated from the heating part, the water passing through the heat exchanger tube 7c is heated.
Since the gas ejected from the nozzle 6 is not appropriately mixed with air, however, the conventional combustion device for the gas boiler as shown in FIG. 2 may cause an undesirable yellow flame due to the incomplete combustion process and may produce a generally weak force of the flame.
Disclosure of Invention
To solve the above-described problems encountered in the conventional art, it is an object of the present invention to provide a combustion device for a gas boiler that is capable of supplying air (that is, oxygen) to the flames injected from a plurality of burner tips to achieve the complete combustion of a gas, whereby even through a heat exchanger is disposed adjacent to the combustion device, it can prevent the generation of yellow flames. According to an aspect of the present invention, there is provided a combustion device for a gas boiler which includes: a burner header having a plurality of burner tips from which gases are ejected; a flame inducing member having the side wall to which the flames ejected from the plurality of burner tips are induced, a generally hollow part formed in the interior thereof, and a plurality of air supply holes connected to the outside pierced thereon; an air ejecting member disposed on the top side of the flame inducing member, the air ejecting member having an air inducing passage formed in the interior thereof to communicate with the hollow part, and a plurality of air ejecting holes formed on the inner periphery thereof; and a blowing fan supplying air to the hollow part of the flame inducing member.
The burner header further comprises a support plate on which an elongated hole from which the air is supplied to the plurality of burner tips is at both sides formed, a connecting pipe formed on the top side of the support plate and having a gas supply inlet formed on the one side, and a nozzle pipe connected to the both ends of the connecting pipe, respectively and having the plurality of burner tips disposed on the top side.
The flame inducing member is of a generally square shape and has at least one or more stepped face, on which the plurality of air supply holes are formed. The air ejecting member is provided with a plurality of air injection holes that are protrusively formed on the top side. According to another aspect of the present invention, there is provided a combustion device for a gas boiler which includes: a burner header having a gas supply hole formed on the one side thereof and a plurality of burner tips, from which gases are ejected, formed on the top side thereof; a first air tank formed on the lower portion of the burner header, the first air tank having a space part on the interior and a plurality of air ejecting holes on the top side thereof; a second air tank having an air inducing pipe communicating with the first air tank on the lower side thereof, a flame inducing part for inducing the flames ejected from the plurality of burner tips to the top side on the upper side of the air inducing pipe, and a plurality of air ejecting holes on the outer periphery and top side of the flame inducing part; and a blowing fan supplying air to the first air tank and the second air tank.
The flame inducing part is large at the upper portion and small at the lower portion. The second air tank includes a plurality of air injection holes that are protrusively formed on the top side.
The plurality of burner tips are disposed in a zigzag-arranged manner toward the flame inducing part and the cylindrical heat exchanger.
Brief Description of the Drawings
The present invention will become better understood with reference to the accompanying drawings which are given only by way of illustration and thus are not limitative of the present invention, wherein;
FIG. 1 is a sectional view of a conventional combustion device for a gas boiler; FIG. 2 is a sectional view of another conventional combustion device for a gas boiler;
FIG. 3 is a perspective view of a combustion device for a gas boiler according to a first embodiment of the present invention; FIG. 4 is a top sectional view of the combustion device according to the first embodiment of the present invention;
FIG. 5 is a side sectional view of the combustion device according to the first embodiment of the present invention;
FIG. 6 is a perspective view of a combustion device for a gas boiler according to a second embodiment of the present invention; and
FIG. 7 is a sectional view of the combustion device according to the second embodiment of the present invention.
Best mode for Carrying Out the Invention Now, an explanation of the preferred embodiments of the present invention will be given with reference to accompanying drawings.
FIGS. 3 to 5 illustrate a combustion device for a gas boiler according to a first embodiment of the present invention.
As shown, a combustion device 100 for a gas boiler includes a burner header 10, a flame inducing member 20, an air ejecting member 30, and a blowing unit 40.
The burner header 10 further comprises a support plate 11 on which an elongated hole 11a from which air is supplied to a plurality of burner tips 14 is at both sides formed, a connecting pipe 12 formed on the top side of the support plate 11 and having a gas supply inlet 12a formed on the one side thereof, and a nozzle pipe 13 connected to the both ends of the connecting pipe 12, respectively and having the plurality of burner tips 14 disposed on the top side.
The support plate 11 is provided with a through hole lib on the center, through which a passage pipe 42 of the blowing unit 40 as will be discussed later is connected to supply air thereto.
Each of the burner tips 14, which is adapted to make the gas supplied as a mixed gas that is easy to be ignited, includes a nozzle hole 14a on the one side fixed on the burner header 10, a plurality of first air supply holes 14b on the outer periphery, and a fire outlet 14c on the other side. In addition, each of the burner tips 14 is desirably inclined at an angle of about 45 °.
The flame inducing member 20, which is disposed between the nozzle pipes 13, is of a generally square shape, where the flames of the fire are collided against each other on the sides and rise upward, a hollow part 21 is formed on the interior, and a plurality of air supply holes 22 are formed on the top portion.
The flame inducing member 20 has at least one or more stepped face, on which the plurality of air supply holes 22 are formed.
The air ejecting member 30, which communicates with the hollow part 21 of the flame inducing member 20 for the purpose of ejecting air therefrom, is of a generally square ring shape, where an air inducing passage 31 is formed in the interior, a plurality of air injection holes 32 is formed on the top side, and a plurality of air ejecting holes 33 are protrusively formed on the inside periphery.
Each of the air injection holes 32 is desirably formed inclined inside, and each of the air ejecting holes 33 is desirably formed inclined toward the top side. The blowing unit 40 is adapted to supply air to the hollow part 21 of the flame inducing member 20 and the air inducing passage 31 of the air ejecting member 30, and includes a blowing fan 41 shaft-coupled to a driving motor and the passage pipe 42 guiding the air from the blowing fan 41.
On the other hand, a reference numeral 70 denotes a heat exchanger and a reference numeral 80 represents a combustion chamber.
Under the above configuration, the gas that is supplied through the gas supply inlet 12a is forked at the connecting pipe 12 to move to the nozzle pipes 13 on the both sides, and the gas is then mixed with air at an appropriate mixing ratio on the plurality of burner tips 14 disposed on the top side of each of the nozzle pipes 13 and finally ignited to thereby generate the flames of the fire therefrom.
That is to say, the air is supplied between the elongated holes 11a of the support plate 11 of the burner header 10 and firstly supplied to the first air supply hole 14b of each of the burner tips 14. After the mixing gas is made in the interior of each of the burner tips 14, the mixing gas is ejected through the fire outlet 14c and as air is secondly supplied, the gas becomes in the mixing gas that is easy to be ignited. Thus, the gas is ignited by an igniter and continues to be burnt as the gas and air are kept supplied.
The ignited mixing gas is ejected upward along the side wall of the flame inducing member 20 in the flame state and in this case, the flames are collided against the side wall such that incomplete gas may be produced.
At this time, the air is blown by virtue of the blowing unit 40 formed on the lower side of the flame inducing member 20 such that it is guided to the hollow part 21 of the flame inducing member 20, and the air guided is ejected to the outside through the plurality of air supply holes 22 and is added to the gas that is in the flame-colliding state ejected on the top side along the side wall of the flame inducing member 20 such that it makes the gas not burnt secondly burnt.
The re-burnt gas is moved to the top side, and the air supplied to the hollow part 21 of the flame inducing member 20 is supplied to the air inducing passage 31 of the air ejecting hole 30 through a communicating hole (which is not shown) such that it is ejected through the plurality of air injection holes 32 and the air ejecting hole 33. Thus, the gas is burnt thirdly, thereby achieving the complete combustion.
And, the heat exchanger 50, which is disposed adjacent to the air injection holes 32, is heated by the strong force of fire that has been thirdly burnt.
FIGS. 6 and 7 illustrate a combustion device for a gas boiler according to a second embodiment of the present invention. In this embodiment of the present invention, like numbers indicate the same elements as in FIGS. 3 to 5, for the brevity of the description. As shown, the combustion device 100 for the gas boiler includes a burner header 10, a first air tank 50, a second air tank 60 and a blowing unit 40.
The burner header 10 is of a generally cylindrical shape, and comprises a gas supply inlet 15 on the one side and a plurality of burner tips 14 from which gas is ejected on the top side. Each of the burner tips 12 is inclined in a zigzag-arranged manner toward a flame inducing part 62 and a cylindrical heat exchanger 70, as will be discussed later.
The first air tank 50 is disposed on the lower portion of the burner header 10 and is provided with a space part 51 in the interior and a plurality of air ejecting holes 52 on the top side. The second air tank 60 is disposed on the inside of the burner header 10 and the first air tank 50 and includes an air inducing pipe 61 communicating with the first air tank 50, the flame inducing part 62 disposed on the top side of the air inducing pipe 61 for guiding the flames ejected from the burner tips 12 to the top side, and a plurality of air ejecting holes 62a on the top side and outer periphery of the flame inducing part 62.
The flame inducing part 62 is large at the upper portion and is small at the lower portion. The flame inducing part 62 is configured in such a manner as to easily raise the flames upward. The flame inducing part 62 is provided with a plurality of air injection holes 62b that are protrusively formed on the top side.
The blowing unit 40 has the same construction as in the first embodiment, and an explanation of it will be avoided hereinafter.
On the other hand, a reference numeral 90 denotes the cylindrical heat exchanger.
Under the above configuration, the gas is supplied through the gas supply inlet 15 to the burner header 10, and the gas is then mixed with air at an appropriate mixing ratio on the plurality of burner tips 14 and then ignited toward the flame inducing part 62 and the heat exchanger 90. That is to say, the burner tips 14 form the mixed gas in the interior with the air supplied from the first air supply hole 14b and eject the mixed gas through the fire outlet 14c. At this time, the gas is mixed again with air such that it can be easily ignited, and the gas is ignited by an igniter and continues to be burnt as the gas and air are kept supplied. The ignited mixed gas is collided against the flame inducing part 62 and the heat exchanger 90 and in this case, the flames are collided against each other such that incomplete gas may be produced.
At this time, the air is blown by virtue of the blowing unit 40 formed on the lower side of the first air tank 50 such that it is guided to the space part 51 of the first air tank 50, and the part of air is ejected to the air ejecting hole 52 on the top side such that it makes the gas burnt from the burner tips 14 burnt again.
The air is ejected to the air ejecting hole 62a and the air injection hole 62b on the top side of the flame inducing part 62, through the air inducing pipe 61 that communicates with the first air tank 50, and is finally used to make the gas burnt again.
On the other hand, the combustion device for the gas boiler according to the present invention is applicable to houses, industries, generating stations, and so on.
Industrial applicability
As set forth in the foregoing, the combustion device for the gas boiler according to the present invention can supply air to the flames from the gas that has been burnt until the gas is secondly and thirdly burnt, thereby making the gas completely burnt, such that an amount of gas consumed is reduced and a strong force of the fire is obtained.
Even though a heat exchanger is disposed adjacent to the flames at a high temperature that has been thirdly burnt, no yellow flames are generated from the gas, heating time is reduced, and heat efficiency is improved.
The strong force of the fire acts in the inner periphery of the cylindrical heat exchanger, such that no yellow flames are generated from the gas, heating time is reduced, and heat efficiency is improved.

Claims

What Is Claimed Is;
1. A combustion device for a gas boiler, comprising: a burner header (10) having a plurality of burner tips (14) from which gases are ejected; a flame inducing member (20) having the side wall to which the flames ejected from said plurality of burner tips (14) are induced, a generally hollow part (21) formed in the interior thereof, and a plurality of air supply holes (22) connected to the outside pierced thereon; an air ejecting member (30) disposed on the top side of said flame inducing member (20), the air ejecting member having an air inducing passage (31) formed in the interior thereof to communicate with said hollow part (21), and a plurality of air ejecting holes (33) formed on the inner periphery thereof; and a blowing fan (41) supplying air to said hollow part (21) of said flame inducing member (20).
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2. The combustion device of claim 1, wherein said burner header (10) further comprises a support plate (11) on which an elongated hole (11a) from which the air is supplied to said plurality of burner tips (14) is at both sides formed, a connecting pipe (12) formed on the top side of said support plate (11) and having a gas supply inlet (12a) formed on the one side, and a nozzle pipe (13) connected to the both ends of said connecting pipe (12), respectively and having said plurality of burner tips (14) disposed on the top side.
3. The combustion device of claim 1 or 2, wherein said flame inducing member (20) is of a generally square shape and has at least one or more stepped face, on which said plurality of air supply holes (22) are formed.
4. The combustion device of claim 1, wherein said air ejecting member (30) is provided with a plurality of air injection holes (32) that are protrusively formed on the top side.
5. A combustion device for a gas boiler, comprising: a burner header (10) having a gas supply inlet (15) on the one side thereof and a plurality of burner tips (14) from which gases are ejected on the top side thereof; a first air tank (50) formed on the lower portion of said burner header (10), the first air tank having a space part (51) on the interior thereof and a plurality of air ejecting holes (52) on the top side thereof; a second air tank (60) having an air inducing pipe (61) communicating with said first air tank (50) on the lower side thereof, a flame inducing part (62) for inducing the flames ejected from said plurality of burner tips (14) to the top side on the upper side of said air inducing pipe (61), and a plurality of air ejecting holes (62a) on the outer periphery and top side of said flame inducing part (62); and a blowing fan (41) supplying air to said first air tank (50) and said second air tank (60).
6. The combustion device of claim 5, wherein said flame inducing part (62) is large at the upper portion and small at the lower portion.
7. The combustion device of claim 5 or 6, wherein said second air tank (60) comprises a plurality of air injection holes (62b) that are protrusively formed on the top side.
8. The combustion device of claim 5 or 6, wherein said plurality of burner tips (14) are disposed in a zigzag-arranged manner towards said flame inducing part (62) and a generally cylindrical heat exchanger (90).
PCT/KR2002/000906 2001-05-17 2002-05-15 Combustion device for gas boiler Ceased WO2002093076A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2001-0026959A KR100405241B1 (en) 2001-05-17 2001-05-17 Burning device for gas boiler
KR2001/26958 2001-05-17
KR10-2001-0026958A KR100405242B1 (en) 2001-05-17 2001-05-17 Burning device for gas boiler
KR2001/26959 2001-05-17

Publications (1)

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WO2002093076A1 true WO2002093076A1 (en) 2002-11-21

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100405241B1 (en) * 2001-05-17 2003-11-17 주식회사3차버너 Burning device for gas boiler
KR100405242B1 (en) * 2001-05-17 2003-11-17 주식회사3차버너 Burning device for gas boiler
US11131455B2 (en) 2015-08-04 2021-09-28 Warming Trends, Llc System and method for building ornamental flame displays
US12055300B2 (en) 2020-11-24 2024-08-06 Warming Trends, Llc Flame burner

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0221110A (en) * 1988-07-06 1990-01-24 Matsushita Electric Ind Co Ltd High load-burner
JPH0278814A (en) * 1988-06-02 1990-03-19 Matsushita Electric Ind Co Ltd Burna
JPH06117612A (en) * 1992-10-06 1994-04-28 Osaka Gas Co Ltd Triple pipe gas burner
JPH10122515A (en) * 1996-10-22 1998-05-15 Osaka Gas Co Ltd High turndown burner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0278814A (en) * 1988-06-02 1990-03-19 Matsushita Electric Ind Co Ltd Burna
JPH0221110A (en) * 1988-07-06 1990-01-24 Matsushita Electric Ind Co Ltd High load-burner
JPH06117612A (en) * 1992-10-06 1994-04-28 Osaka Gas Co Ltd Triple pipe gas burner
JPH10122515A (en) * 1996-10-22 1998-05-15 Osaka Gas Co Ltd High turndown burner

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100405241B1 (en) * 2001-05-17 2003-11-17 주식회사3차버너 Burning device for gas boiler
KR100405242B1 (en) * 2001-05-17 2003-11-17 주식회사3차버너 Burning device for gas boiler
US11131455B2 (en) 2015-08-04 2021-09-28 Warming Trends, Llc System and method for building ornamental flame displays
US11193670B2 (en) 2015-08-04 2021-12-07 Warming Trends, Llc System and method for building ornamental flame displays
US11384932B2 (en) 2015-08-04 2022-07-12 Warming Trends, Llc System and method for building ornamental flame displays
US12060992B2 (en) 2015-08-04 2024-08-13 Warming Trends, Llc System and method for building ornamental flame displays
US12055300B2 (en) 2020-11-24 2024-08-06 Warming Trends, Llc Flame burner
US12188659B2 (en) 2020-11-24 2025-01-07 Warming Trends, Llc Flame burner

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