KR0125529Y1 - Fuel mixing apparatus of boiler burner - Google Patents

Fuel mixing apparatus of boiler burner

Info

Publication number
KR0125529Y1
KR0125529Y1 KR2019940037872U KR19940037872U KR0125529Y1 KR 0125529 Y1 KR0125529 Y1 KR 0125529Y1 KR 2019940037872 U KR2019940037872 U KR 2019940037872U KR 19940037872 U KR19940037872 U KR 19940037872U KR 0125529 Y1 KR0125529 Y1 KR 0125529Y1
Authority
KR
South Korea
Prior art keywords
steam
nozzle
fuel
oil
supply pipe
Prior art date
Application number
KR2019940037872U
Other languages
Korean (ko)
Other versions
KR960023812U (en
Inventor
이상선
Original Assignee
양재학
고신열관리주식회사
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Publication date
Application filed by 양재학, 고신열관리주식회사 filed Critical 양재학
Priority to KR2019940037872U priority Critical patent/KR0125529Y1/en
Publication of KR960023812U publication Critical patent/KR960023812U/en
Application granted granted Critical
Publication of KR0125529Y1 publication Critical patent/KR0125529Y1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D11/00Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/10Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/101Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
    • F23D11/102Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber
    • F23D11/103Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber with means creating a swirl inside the mixing chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D11/00Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36Details, e.g. burner cooling means, noise reduction means
    • F23D11/38Nozzles; Cleaning devices therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D11/00Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36Details, e.g. burner cooling means, noise reduction means
    • F23D11/40Mixing tubes or chambers; Burner heads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2202/00Liquid fuel burners

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Spray-Type Burners (AREA)

Abstract

본 고안은 보일러용 버너의 연료혼합장치에 관한 것으로 특히, 산업용으로 사용하는 보일러의 버너에서 연소실내로 연료를 분사하기 직전 충분히 혼합시켜주므로서 연소효율을 촉진시키고 공해성물질의 배출을 최대한 억제시킬수 있도록 한 보일러의 연료혼합장치에 관한 것이다.The present invention relates to a fuel mixing device of a burner for a boiler, and in particular, it is possible to promote the combustion efficiency and to suppress the emission of pollutants by mixing the fuel burner in the boiler for industrial use just before injecting the fuel into the combustion chamber. To a fuel mixing device of a boiler.

이를 위해 본 고안은 오일통로(11)(42)의 후단부에 다수의 와류발생홈(61)을 갖는 연료노즐(60)을 설치하고, 제1스팀공급관(20)의 스팀통로(21)에는 복수개의 와류발생공(32)을 갖는 제2스팀공급관(30)과 와류실(41)을 갖는 분배구(40)및 다수의 스팀공(52)을 갖는 스팀노즐(50)을 설치하여 상기 오일과 스팀이 노즐팁(70)의 연료혼합실(71)에서 충분히 혼합된 다음 연소실에 분사되므로 연소효과 뛰어날 뿐만 아니라 대기요염의 주원인인 질소산화물과 분진발생을 최대한 억제시킬수 있는 것이다.To this end, the present invention provides a fuel nozzle 60 having a plurality of vortex generating grooves 61 at the rear end of the oil passages 11 and 42, and in the steam passage 21 of the first steam supply pipe 20. The oil is provided by installing a second steam supply pipe 30 having a plurality of vortex generating holes 32, a distribution port 40 having a vortex chamber 41, and a steam nozzle 50 having a plurality of steam holes 52. Since the steam is sufficiently mixed in the fuel mixing chamber 71 of the nozzle tip 70 and then injected into the combustion chamber, the combustion effect is excellent and the nitrogen oxide and dust, which are the main causes of air pollution, can be suppressed as much as possible.

아울러, 노즐팁(70)의 돌출부위를 반구형으로 형성하여 연료의 분사효율이 뛰어나도록 한 것이다.In addition, the protrusion of the nozzle tip 70 is formed in a hemispherical shape so that the injection efficiency of the fuel is excellent.

Description

보일러용 버너의 연료혼합장치Fuel Mixer of Boiler Burner

제1도는 본 고안의 조립반단면도.1 is an assembly half sectional view of the present invention.

제2도는 요부의 분해사시도.2 is an exploded perspective view of the main part.

제3도는 종래 장치의 개략적인 조립단면도.3 is a schematic cross-sectional view of a conventional device.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 노즐본체 11 : 오일통로10: nozzle body 11: oil passage

20 : 제1스팀공급관 21 : 스팀통로20: 1st steam supply pipe 21: steam passage

30 : 제2스팀공급관 31 : 스팀통로30: second steam supply pipe 31: steam passage

32 : 와류발생공 40 : 분배구32: vortex generation hole 40: distribution port

41 : 와류실 42 : 오일공41: swirl chamber 42: oil ball

50 : 스팀노즐 52 : 스팀공50: steam nozzle 52: steam ball

60 : 연료노즐 61 : 와류발생홈60: fuel nozzle 61: vortex generating groove

70 : 노즐팁 71 : 연료혼합실70: nozzle tip 71: fuel mixing chamber

72 : 연료분사구 80 : 노즐캡72: fuel injection port 80: nozzle cap

130 : 오일파이프 140 : 스팀파이프130: oil pipe 140: steam pipe

본 고안은 보일러용 버너의 연료혼합장치에 관한 것으로 특히, 산업용으로 사용하는 보일러의 버너에서 연소실내로 연료를 분사하기 직전 충분히 혼합시켜주므로서 연소효율을 촉진시키고 공해성물질의 배출을 최대한 억제시킬수 있도록 한 보일러의 연료혼합장치에 관한 것이다.The present invention relates to a fuel mixing device of a burner for a boiler, and in particular, it is possible to promote the combustion efficiency and to suppress the emission of pollutants by mixing the fuel burner in the boiler for industrial use just before injecting the fuel into the combustion chamber. To a fuel mixing device of a boiler.

종래의 산업용 보일러에 사용하는 노즐(200)은 제3도에서 보는 바와 같이 중공형의 노즐본체(230)내부에 오일통로(241)가 형성된 오일공급관(240)을 삽입하여 상기 노즐본체와 오일공급관사이에 스팀통로(231)가 형성되게 하고, 상기 노즐본체의 선단에는 상기 스팀 및 오일통로(231)(241)와 연통되는 연료분사구(251)를 갖으며 상기 연료분사구주위의 후면이 평면으로 형성된 노즐캠(250)을 설치하여 외부로 부터 스팀 및 오일파이프(210)(220)를 통하여 공급된 스팀 및 오일이 각각 상기 스팀통로(231)와 오일통로(241)로 공급되어 노즐캡(250)의 전방에서 혼합된 다음 연료분사구(251)를 통해 가열로의 연소실내로 분사된 뒤 연소되도록 하였던 것이다.The nozzle 200 used in the conventional industrial boiler inserts the oil supply pipe 240 having the oil passage 241 formed inside the hollow nozzle body 230 as shown in FIG. A steam passage 231 is formed therebetween, and a fuel injection port 251 is formed at the front end of the nozzle body to communicate with the steam and oil passages 231 and 241, and a rear surface around the fuel injection port is formed in a plane. The nozzle cam 250 is installed to supply steam and oil supplied from the outside through the steam and oil pipes 210 and 220 to the steam passage 231 and the oil passage 241, respectively, and the nozzle cap 250. It was mixed in front of the then injected through the fuel injection port 251 into the combustion chamber of the furnace to be burned.

따라서, 상기와 같은 종래의 노즐(200)은 외부로 부터 공급된 고압의 스팀의 오일이 사전에 아무런 혼합과정도 거치지 않고 곧바로 직선형의 스팀및 오일통로(231)(241)와 노즐캡(250)의 연료분사구(251)를 통하여 연소실내로 분사되므로 연료의 불충분한 혼합으로 인한 불완전연소를 야기시키기 쉽고, 이로 인해 대기오염의 원인인 질소산화물(NOx)과 분진발생량이 증가하며, 연료의 연소효율을 떨어뜨리는 요인이 되었던 것이다.Therefore, the conventional nozzle 200 as described above is a straight steam and oil passage 231, 241 and nozzle cap 250 of the high-pressure steam oil supplied from the outside without any mixing process in advance Since it is injected into the combustion chamber through the fuel injection port 251 of the fuel, it is easy to cause incomplete combustion due to insufficient mixing of the fuel, thereby increasing the amount of nitrogen oxide (NOx) and dust generated as a source of air pollution, and the combustion efficiency of the fuel It was a factor to drop.

또한, 이러한 노즐(200)은 노즐캡(250)의 후면이 평면으로 형성되어 있어 연료가 연료분사구(151)를 통하여 분사될때 상대적으로 그 주위(상기 평면부위를 말함)의 압력이 급격히 떨어지는 관계로 연료의 분사효율을 떨어뜨리게 되어 이또한 연소효율을 감소시키는 원인이 되었던 것이다.In addition, such a nozzle 200 has a rear surface of the nozzle cap 250 is formed in a plane so that when the fuel is injected through the fuel injection port 151, the pressure around the relatively (say the plane portion) is sharply dropped The injection efficiency of the fuel was lowered, which also contributed to the reduction of the combustion efficiency.

본 고안은 어러한 문제점을 해결하기 위하여 안출한 것으로 그 목적은 오일과 스팀이 연소실내로 분사되기 직전 노즐내부에서 충분히 혼합시켜주므로서 연료의 연소효율을 축진시키고 공해성물질인 질소산화물과 분진등의 배출을 최대한 억제시킬수 있도록 한 것이다.The present invention was devised to solve the above problems, and its purpose is to sufficiently mix the oil and steam in the nozzle just before being injected into the combustion chamber, thereby accelerating the combustion efficiency of the fuel, and reducing nitrogen oxide and dust, which are pollutants. This is to minimize the emission of.

상기의 목적을 달성하기 위해 본 고안은 수팀및 오일통로에 다수의 와류발생공및 와류발생홈을 갖는 스팀공급관과 스팀및 연료노즐을 설치하여 외부로 부터 공급된 스팀과 오일이 상기 스팀공급관과 스팀및 연료노즐을 통과하면서 와류현상을 일으켜 흥분히 혼합된 다음 연료분사구를 통하여 연소실에 분사되도록 한 것이다.In order to achieve the above object, the present invention installs a steam supply pipe having a plurality of vortex generating holes and vortex generating grooves and steam and fuel nozzles in a male team and an oil passage to supply steam and oil from the outside. And a vortex phenomenon as it passes through the fuel nozzle, is excitedly mixed, and then injected into the combustion chamber through the fuel injection port.

이하 본 고안을 첨부된 도면에 의거 보다 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

제1도는 본 고안의 조립반단면도이고, 제2도는 요부의 분해사시도를 나타낸 것이다.1 is an assembled half sectional view of the present invention, Figure 2 shows an exploded perspective view of the main portion.

도시한 바와 같이 본 고안의 버너용 노즐(100)은 중공형의 노즐본체(10)와; 상기 노즐본체에 삽입되어 그 주연부와 노즐본체사이에 오일통로(11)를 형성하며 그 내부에 스팀통로(21)를 갖는 중공형의 제1스팀공급관(20)과; 상기 제1스팀공급관에 삽입되며 스팀통로(21)와 연통되는 스팀통로(31)및 이 스팀통로와 관통되는 복수개의 와류발생공(32)을 구비하는 제2스팀공급관(30)과; 상기 제1스팀공급관과 제2스팀공급관사이에 설치되며 상기 와류발생공(32)과 연통되는 와류실(41)및 오일통로(11)와 연통되는 다수의 오일공(42)을 갖는 분배구(40)와; 상기 분배구후단부에 설치되며 와류실(41)과 연통되는 다수의 스팀공(52)을 갖는 스팀노즐(50)과; 상기 스팀노즐의 후단부에 설치되며 오일공(42)과 연통되는 다수의 와류발생홈(61)을 갖는 연료노즐(60)과; 상기 연료노즐의 후단부에 설치되며 상기 스팀공(52)및 와류발생홈(61)과 연통되는 연료혼합실(71)과 다수의 연료분사구(72)를 갖는 노즐팁(70)및; 상기 분배구와 노즐팁을 노즐본체에 결합하기 위한 노즐캡(80)으로 구성된다.As shown, the burner nozzle 100 of the present invention includes a hollow nozzle body 10; A hollow first steam supply pipe (20) inserted into the nozzle body to form an oil passage (11) between its periphery and the nozzle body and having a steam passage (21) therein; A second steam supply pipe (30) inserted into the first steam supply pipe and having a steam passage (31) communicating with the steam passage (21) and a plurality of vortex generating holes (32) passing through the steam passage; A distribution port installed between the first steam supply pipe and the second steam supply pipe and having a plurality of oil holes 42 communicating with the vortex chamber 41 and the oil passage 11 communicating with the vortex generating hole 32 ( 40); A steam nozzle 50 installed at the rear end of the distribution port and having a plurality of steam holes 52 communicating with the vortex chamber 41; A fuel nozzle 60 installed at a rear end of the steam nozzle and having a plurality of vortex generating grooves 61 communicating with an oil hole 42; A nozzle tip (70) installed at a rear end of the fuel nozzle and having a fuel mixing chamber (71) and a plurality of fuel injection holes (72) communicating with the steam hole (52) and the vortex generating groove (61); It consists of a nozzle cap 80 for coupling the distribution port and the nozzle tip to the nozzle body.

노즐본체(10)는 내부가 빈 중공형의 원통체이며, 그 선단에 오일파이프(130)가 용접으로 고정되고, 후단부의 주연에는 나사부가 형성된다.The nozzle body 10 is a hollow cylindrical body having an empty inside, and an oil pipe 130 is fixed to the front end by welding, and a threaded part is formed at the periphery of the rear end.

제1스팀공급관(20)은 그 내부에 스팀통로(21)를 갖는 원통체로서 그 주연부와 노즐본체(10)사이에 오일통로(11)를 형성하게 되며, 선단에는 스팀파이프(140)가 용접으로 고정된다.The first steam supply pipe 20 is a cylindrical body having a steam passage 21 therein, and forms an oil passage 11 between its periphery and the nozzle body 10, and a steam pipe 140 is welded at the tip end thereof. Is fixed.

제2스팀공급관(30)은 후단이 차단된 원통체로서 그 내부에 제1스팀공급관(20)의 스팀통로(21)와 연통되는 스팀통로(31)를 구비하고, 주연에는 나사부와 복수개의 와류발생공(32)이 형성된다.The second steam supply pipe 30 is a cylindrical body whose rear end is blocked, and has a steam passage 31 communicating with the steam passage 21 of the first steam supply pipe 20 therein, and at the periphery, a screw portion and a plurality of vortices. The generating hole 32 is formed.

상기 와류발생공(32)은 나사부의 후단부주연에 상기 스팀통로(31)와 직각으로 관통되게 형성되므로서 이를 통하여 배출되는 스팀이 와류현상을 일으키게 된다.The vortex generating hole 32 is formed so as to pass through the steam passage 31 at right angles to the rear end of the screw portion, so that the steam discharged through the vortex phenomenon occurs.

또한, 상기 제1스팀공급관과 제2스팀공급관사이에는 기밀유지를 위하여 제2스팀공급관(30)의 돌출부(33)후단에 기밀재인 복수개의 가스켓(110)이 삽입되고, 이들 후단에는 고정수단인 록크너트(90)가 나사결합되어 상기 가스켓을 압착시키게 된다.In addition, between the first steam supply pipe and the second steam supply pipe, a plurality of gaskets 110, which are hermetically sealed, are inserted into the rear end of the protrusion 33 of the second steam supply pipe 30 to maintain the airtightness. The lock nut 90 is screwed to compress the gasket.

분배구(40)는 제2스팀공급관(30)의 나사부에 나사결합되며, 그 중심에 는 상기 와류발생공과 연통과는 와류실(41)이 형성되고, 주연부에는 노즐본체(10)의 오일통로(11)와 연통되는 다수의 오일공(42)이 형성된다.Dispensing port 40 is screwed into the screw portion of the second steam supply pipe 30, the vortex chamber 41 is formed in communication with the vortex generating hole in the center, the oil passage of the nozzle body 10 in the peripheral portion A plurality of oil holes 42 communicating with 11 are formed.

스팀노즐(50)은 분배구(40)후단부에 설치되어 그 중심의 돌출부(51)가 제2스팀공급관(30)을 지지하게되며, 주연부에는 분배구(40)의 와류실(41)과 연통되는 다수의 스팀공(52)이 형성된다.The steam nozzle 50 is installed at the rear end of the distribution port 40 so that the protruding portion 51 at the center thereof supports the second steam supply pipe 30, and the vortex chamber 41 of the distribution port 40 is located at the peripheral portion thereof. A plurality of steam holes 52 are formed in communication.

연료노즐(60)은 그 전면에 상기 오일공(42)과 연통되는 다수의 와류발생홈(61)이 방사상으로 경사지게 형성되고, 중심에는 연료공(62)이 형성되며, 스팀노즐(50)의 후단부에 설치된다.The fuel nozzle 60 has a plurality of vortex generating grooves 61 communicating with the oil holes 42 on the front surface thereof, and are inclined radially, and a fuel hole 62 is formed at the center of the fuel nozzle 50. It is installed at the rear end.

상기 와류발생홈(61)의 경사각은 용도에 따라 중심으로 부터 약 5-30°정도 경사지게 형성하는 것이 좋다.The inclination angle of the vortex generating groove 61 may be formed to be inclined by about 5-30 ° from the center according to the use.

노즐팁(70)은 그 중심에 상기 연료공(62)가 연통되는 연료혼합실(71)을 갖으며, 후단부가 반구형으로 형성되어 그 주연부에 상기 연료혼합실과 연통되는 다수의 연료분사구(72)가 형성된다.The nozzle tip 70 has a fuel mixing chamber 71 in which the fuel hole 62 communicates with a center thereof, and a plurality of fuel injection holes 72 having a rear end portion formed in a hemispherical shape and communicating with the fuel mixing chamber at a peripheral portion thereof. Is formed.

노즐캡(80)은 구 후단이 상기 노즐팁(70)에 걸린상태로 노즐본체와 피스톤에 나사결합되어 상기 스팀및 연료노즐(50)(60)과 노즐팁(70)을 고정시키게 된다.The nozzle cap 80 is screwed to the nozzle body and the piston with the spherical rear end of the nozzle tip 70 fixed to the steam and fuel nozzles 50 and 60 and the nozzle tip 70.

도면중, 미설명부호 150과 160은 기밀을 유지하기 위한 가스켓이다.In the drawings, reference numerals 150 and 160 denote gaskets for maintaining airtightness.

상기와 같이 구성된 본 고안의 동작과 작용효과를 설명하면 다음과같다.Referring to the operation and effect of the present invention configured as described above are as follows.

먼저, 오일파이프(130)로 부터 공급되는 오일은 노즐본체(10)와 제1스팀공급관(20)사이의 오일통로(11)를 통하여 분배구(40)의 오일공(42)을 통과하면서 속도가 빨라진 상태로 연료노즐(60)에 도달한다.First, the oil supplied from the oil pipe 130 passes through the oil hole 42 of the distribution port 40 through the oil passage 11 between the nozzle body 10 and the first steam supply pipe 20. Reaches the fuel nozzle 60 in a faster state.

연료노즐(60)에 도달한 오일은 경사지게 형성된 와류발생홈(61)을 통과하면서 와류현상을 일으킨 뒤 연료공(62)을 통하여 노즐팁(70)의 연료혼합실(71)로 유입된다.The oil reaching the fuel nozzle 60 passes through the vortex generating groove 61 formed to be inclined to cause vortex and then flows into the fuel mixing chamber 71 of the nozzle tip 70 through the fuel hole 62.

한편, 스팀파이프(140)로 부터 공급된 고압의스팀은 제1스팁공급관(20)의 제2스팀공급관(30)의 스팀통로(21)(31)로 유입된 다음 직각으로 관통된 복수개의 와류발생공(32)을 통과하면서 와류현상을 일으킨 뒤 분배구(40)의 와류실(41)과 스팀노즐(50)의 스팀공(52)을 통과하면서 속도가 빨라진 상태로 연료노즐(60)의 연료공(62)을 통과하여 연료혼합실(71)로 공급된다.Meanwhile, the high pressure steam supplied from the steam pipe 140 flows into the steam passages 21 and 31 of the second steam supply pipe 30 of the first steam supply pipe 20 and then passes through at a right angle. After passing through the generating hole 32, a vortex phenomenon is generated, and then, while passing through the vortex chamber 41 of the distribution port 40 and the steam hole 52 of the steam nozzle 50, the speed of the fuel nozzle 60 is increased. It passes through the fuel hole 62 and is supplied to the fuel mixing chamber 71.

따라서, 상기와 같은 경로를 통해 각각 연료혼합실(71)로 유입된 오일과 스팀은 와류현상에 의해 골고루 충분히 혼합되며 완료된 다음 에는 연료분사구(72)를 통하여 가열로의 연소실내부로 분사된다.Therefore, the oil and steam introduced into the fuel mixing chamber 71 through the above path are evenly mixed by the vortex phenomenon, and after completion, they are injected into the combustion chamber of the heating furnace through the fuel injection port 72.

상기 동작중, 와류발생홈(61)과 와류발생홈(32)를 통과하면서 와류현상을 일으키는 오일과 스팀은 각각 연료혼합실(71)로 유입되기 직전부터 혼합되기 시작하며, 연료혼합실에서는 와류현상에 의해 충분한 시관과 공간을 두고 완전히 혼합된다.During the operation, the oil and steam, which cause the vortex phenomenon while passing through the vortex generating groove 61 and the vortex generating groove 32, start mixing immediately before flowing into the fuel mixing chamber 71, respectively, in the fuel mixing chamber. The phenomenon is completely mixed with sufficient view and space.

따라서, 연료분사구(72)를 통하여 연소실내부로 분사되는 연료는 오일과 스팀이 충분히 혼합된 상태이므로 그만큼 연소효과가 뛰어나게 되며 유해가스와 이물질의 발생이 억제된다.Therefore, since the fuel injected into the combustion chamber through the fuel injection port 72 is sufficiently mixed with oil and steam, the combustion effect is excellent and the generation of harmful gases and foreign substances is suppressed.

또한, 본 고안은 노즐팁(70)의 후단부(외측으로 돌출부된부위)가 반구형으로 형성되어 있어 연료분사시 이부분에서의 급격한 압력강하가 발생하지 않으므로 연료가 연소실내부에 골고루 분사되어 이또한 연소효율을높혀주는 잇점이 있다.In addition, the present invention has a hemispherical shape of the rear end (outwardly protruding portion) of the nozzle tip 70, so that a sudden pressure drop in this portion does not occur during fuel injection, so that the fuel is evenly injected into the combustion chamber. There is an advantage to increase the combustion efficiency.

이상에서 설명한 바와 같이 본 고안은 오일통로(11)(42)의 후단부에 다수의 와류발생홈(61)을 갖는 연료노즐(60)을 설치하고, 제1스팀공급관(20)의 스팀통로(21)에는 복수개의 와류발생공(32)을 갖는 제2스팀공급관(30)과 와류실(41)을 갖는 분배구(40)및 다수의 스팀공(52)을 갖는 스팀노즐(50)을 설치하여 상기 오일과 스팀이 노즐팁(70)의 연료혼합실(71)에서 충분히 혼합된 다음 연소실에 분사되므로 연소효과 뛰어날 뿐만 아니라 대기오염의 주원인인 질소산화물과 분진발생을 최대한 억제시킬수 있는 것이다.As described above, the present invention provides a fuel nozzle 60 having a plurality of vortex generating grooves 61 at the rear end of the oil passages 11 and 42, and the steam passage of the first steam supply pipe 20 ( 21, a second steam supply pipe 30 having a plurality of vortex generating holes 32, a distribution port 40 having a vortex chamber 41, and a steam nozzle 50 having a plurality of steam holes 52 are installed. Thus, the oil and steam are sufficiently mixed in the fuel mixing chamber 71 of the nozzle tip 70 and then injected into the combustion chamber, thereby not only excellent in the combustion effect, but also suppressing the generation of nitrogen oxide and dust, which are the main causes of air pollution.

아울러, 노즐팁(70)의 돌출부위를 반구형을 형성하여 급격한 압력강하가 발생하지 않으므로 연료의 분사효율이 그만큼 뛰어나게 되어 이또한 연소효과를 촉진시키는 효과가 있는 것이다.In addition, since a hemispherical shape of the protrusion of the nozzle tip 70 does not generate a sudden pressure drop, the injection efficiency of the fuel is excellent, which also has the effect of promoting the combustion effect.

Claims (3)

오일파이프(130)로 부터 오일이 공급되는 노즐본체(10)와, 상기 노즐본체에 삽입되어 그 주연부와 상기 노즐본체사이에 오일통로(11)를 형성하며 자체적으로는 스팀파이프(140)로 부터 스팀을 공급받는 스팀통로(21)가 형성된 제1스팀공급관()과, 상기 오일통로와 스팀통로로 부터 공급되는 연료를 외부로 분사시키기 위하여 다수의 연료분사구 (72)가 형성된 노즐팁(70)및, 상기 노즐팁을 노즐본체에 결합하기 위한 노즐캡(80)으로 구성되는 보일러용 버너의 노즐(100)에 있어서, 상기 제1스팀공급관(20)에 삽입되며 스팀통로(21)와 연통되는 스팀통로(31)및 복수개의 와류발생공(32)을 갖는 제2스팀공급관(30)과; 상기 제2스팀공급관에 나사결합되며 와류발생공(32)과 연통되는 와류실(41)및 오일통로(11)와 연통되는 다수의 오일공(42)을 갖는 분배구(40)와; 상기 분배구후단부에 설치되며 와류실(41)과 연통되는 다수의 스팀공(52)을 갖는 스팀노즐(50)과; 상기 스팀노즐의 후단부에 설치되며 오일통로(42)와 연통되는 다수의 와류발생홈(61)을 갖는 연료노즐(60)과; 상기 연료노즐의 후단부에 설치되며 스팀공(52)및 와류발생홈(61)과 연통되는 연료혼합실(71)과 다수의 연료분사구(72)를 갖는 노즐팁(70)및; 상기 노즐팁을 노즐본체(10)에 결합시키기 위한 노즐캡(70)을 포함하여서 됨을 특징으로 하는 보일러용 버너의 연료혼합장치.The nozzle body 10 is supplied with oil from the oil pipe 130, and is inserted into the nozzle body to form an oil passage (11) between the periphery and the nozzle body and itself from the steam pipe (140) The first steam supply pipe formed with a steam passage 21 receiving steam and a nozzle tip 70 having a plurality of fuel injection holes 72 formed therein to inject fuel supplied from the oil passage and the steam passage to the outside. And, in the nozzle 100 of the burner for the boiler consisting of a nozzle cap 80 for coupling the nozzle tip to the nozzle body, inserted into the first steam supply pipe 20 and communicated with the steam passage 21 A second steam supply pipe 30 having a steam passage 31 and a plurality of vortex generating holes 32; A distribution port 40 screwed to the second steam supply pipe and having a plurality of oil holes 42 communicating with the vortex chamber 41 and the oil passage 11 in communication with the vortex generating hole 32; A steam nozzle 50 installed at the rear end of the distribution port and having a plurality of steam holes 52 communicating with the vortex chamber 41; A fuel nozzle 60 installed at the rear end of the steam nozzle and having a plurality of vortex generating grooves 61 communicating with the oil passage 42; A nozzle tip (70) installed at a rear end of the fuel nozzle and having a fuel mixing chamber (71) and a plurality of fuel injection holes (72) communicating with a steam hole (52) and a vortex generating groove (61); Fuel mixing device of the burner for the boiler, characterized in that it comprises a nozzle cap (70) for coupling the nozzle tip to the nozzle body (10). 제1항에 있어서, 상기 제2스팀공급관(30)의 와류발생공(32)은 스팀통로(31)와 직각으로 관통된 것임을 특징으로 하는 보이러용 버너의 연료혼합장치.The fuel mixing apparatus of claim 1, wherein the vortex generating hole (32) of the second steam supply pipe (30) is penetrated at a right angle with the steam passage (31). 제1항에 있어서, 상기 연료노즐(60)의 와류발생홈(61)은 중심으로 부터5-30° 경사지게 형성된 것임을 특징으로 하는 보일러용 버너의 연료혼합장치.The fuel mixing apparatus of claim 1, wherein the vortex generating groove (61) of the fuel nozzle (60) is formed to be inclined 5 to 30 degrees from the center.
KR2019940037872U 1994-12-29 1994-12-29 Fuel mixing apparatus of boiler burner KR0125529Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100716581B1 (en) * 2005-08-16 2007-05-09 한국에너지기술연구원 A Orimulsion Burner and the Orimulsion Fuel Supply Method for the Burner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100716581B1 (en) * 2005-08-16 2007-05-09 한국에너지기술연구원 A Orimulsion Burner and the Orimulsion Fuel Supply Method for the Burner

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