KR100187034B1 - Burner for anti-backflow - Google Patents

Burner for anti-backflow Download PDF

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Publication number
KR100187034B1
KR100187034B1 KR1019950068581A KR19950068581A KR100187034B1 KR 100187034 B1 KR100187034 B1 KR 100187034B1 KR 1019950068581 A KR1019950068581 A KR 1019950068581A KR 19950068581 A KR19950068581 A KR 19950068581A KR 100187034 B1 KR100187034 B1 KR 100187034B1
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KR
South Korea
Prior art keywords
mixing tube
mixing
burner
inner diameter
gas
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KR1019950068581A
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Korean (ko)
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KR970046968A (en
Inventor
성완용
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배순훈
대우전자주식회사
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Priority to KR1019950068581A priority Critical patent/KR100187034B1/en
Publication of KR970046968A publication Critical patent/KR970046968A/en
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Publication of KR100187034B1 publication Critical patent/KR100187034B1/en

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    • 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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/82—Preventing flashback or blowback
    • 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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/007—Mixing tubes, air supply regulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2209/00—Safety arrangements
    • F23D2209/10—Flame flashback

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

Abstract

본 발명은 혼합관 하부에 메쉬를 장착하여 가스의 분사속도를 균일하게 하므로서 화염이 안정되고, 소화시 역화를 방지하는 역화방지용 버너에 관한 것으로, 버너바디 하측 중앙에는 하단에 단턱과, 단턱 주연 내측에는 1차공기투입구와, 내경에는 탭부가 각각 형성된 혼합관을 일체로 형성하고, 상기 혼합관의 단턱 상면에는 원형의 메쉬를 재치한 후; 혼합관의 내경의 탭부에는 하부 외경에 나선부와, 내경 상향 내측으로 경사진 혼합부가 각각 형성된 삽입체를 체결 고정한 것이다.The present invention relates to a flashback prevention burner which is equipped with a mesh at a lower portion of the mixing tube to stabilize the gas and makes flames stable and prevents backfire during fire extinguishing. The primary air inlet and the inner diameter is formed integrally with each of the mixing tube formed with a tab portion, and the upper surface of the stepped pipe of the mixing tube is mounted; The tab portion of the inner diameter of the mixing tube is fastened by fastening the spiral formed in the lower outer diameter and the insert formed with the mixing portion inclined upwardly inside the inner diameter.

Description

역화방지용 버너Flashback Burner

제1도는 본 발명의 버너를 나타낸 전 단면도.1 is a front cross-sectional view showing a burner of the present invention.

제2도는 종래의 버너를 나타낸 전 단면도.2 is a front sectional view showing a conventional burner.

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

2 : 버너바디 4 : 버너헤드2: burner body 4: burner head

8 : 버너캡 20 : 혼합관8: burner cap 20: mixing tube

22 : 1차공기투입구 24 : 단턱22: primary air inlet 24: step

26 : 탭부 28 : 삽입체26: tab portion 28: insert

30 : 나선부 31 : 혼합부30: spiral part 31: mixing part

32 : 메쉬32: mesh

본 발명은 역화방지용 버너에 관한 것으로, 특히 혼합관 하부에 메쉬를 장착하여 가스의 분사속도를 균일하게 하므로서 화염이 안정되고, 소화시 역화를 방지하는 역화방지용 버너에 관한 것이다.The present invention relates to a flashback prevention burner, and more particularly, to a flashback prevention burner that is equipped with a mesh at a lower portion of the mixing tube to make the spraying speed of the gas uniform, and that the flame is stable.

일반적으로, 종래의 버너구조는 제2도에 도시된 바와 같이 버너바디(2) 하측 중앙에는 하부에 1차공기 투입구(11)가 형성된 혼합관(10)을 일체로 설치하고, 상기 버너바디(2) 상측에는 다수의 염공(6)이 방사형으로 천공된 버너헤드(4)를 재치하며, 버너헤드(4) 상측에는 버너캡(8)을 설치하는 한편, 상기 혼합관(10)의 하부 중앙에는 가스공급관(14) 끝단에 연결된 연료분사노즐(16)을 설치한 구성을 나타낸다.In general, in the conventional burner structure, as shown in FIG. 2, the mixing tube 10 having the primary air inlet 11 is formed integrally at the lower center of the burner body 2, and the burner body ( 2) The burner head 4 in which a plurality of salt holes 6 are radially punctured is mounted on the upper side, and the burner cap 8 is installed on the burner head 4, while the lower center of the mixing pipe 10 is installed. Shows a configuration in which a fuel injection nozzle 16 connected to the end of the gas supply pipe 14 is provided.

이와 같이 구성된 종래의 버너구조는 연소시 혼합관(10) 하부 중앙에 설치된 연료분사노즐(16)에서 가스를 혼합관(10)으로 분사할 경우에는 분사된 분사가스는 중앙을 중심으로 주위에서 속도가 점차적으로 낮아지게 되는데, 이때, 혼합관의 중앙으로 분사되는 가스의 속도가 가장 빨라 상대적으로 압력이 외부의 기압보다 낮아져 버너의 소화시 연료분사노즐(16)에서 가스의 공급을 중단하면, 혼합관(10)의 중앙부이 압력이 외부의 기압보다 낮아 연소중 염공을 통해 분출되었던 화염이 순간적으로 역화되어 소화음이 발생되는 단점이 있었다.In the conventional burner structure configured as described above, when the gas is injected into the mixing tube 10 from the fuel injection nozzle 16 installed at the lower center of the mixing tube 10 during combustion, the injected injection gas is velocityed around the center. Is gradually lowered. At this time, the speed of the gas injected into the center of the mixing pipe is the fastest, so that the pressure is lower than the external air pressure so that the supply of gas from the fuel injection nozzle 16 when the burner is extinguished, the mixing The lower pressure of the central portion of the tube 10 was lower than the external air pressure, so that the flame which was ejected through the flame hole during combustion was instantaneously backfired, causing a fire extinguishing sound.

또한, 혼합관(10) 내부로 분출되는 가스의 속도가 균일하지 못하며 1차공기 투입구(11)에서 유입되는 1차공기량이 균일치 못하므로서 연소시 1차공기의 부족으로 인한 엘로우팁(Ywllow-Tip)이 생기는 원인이 되었다.In addition, since the velocity of the gas ejected into the mixing tube 10 is not uniform and the amount of primary air flowing from the primary air inlet 11 is not uniform, the yellow tip (Ywllow-) due to lack of primary air during combustion. Tip) was caused.

이에 본 발명은 상기와 같은 제반 문제점을 해소하기 위하여 안출된 것으로, 혼합관 하부에 메쉬를 설치하여 연료분사노즐에서 분사되는 가스를 상기 메쉬에서 일정속도로 분출될 수 있도록 하여, 혼합관 내부로 유입되는 혼합가스의 분출속도가 전체적으로 느려지게 한다. 그러므로, 혼합관 내부이 압력이 상대적으로 낮아져 외부 기압의 영향을 상대적으로 덜받게 되므로서, 버너의 소화시 혼합관 내의 압력 차이로 인한 화염의 역화를 줄일 수 있는 역화방지용 버너를 제공함에 목적이 있다.Accordingly, the present invention has been made in order to solve the above problems, by installing a mesh in the lower portion of the mixing tube so that the gas injected from the fuel injection nozzle can be ejected from the mesh at a constant speed, flow into the mixing tube The blowing rate of the mixed gas is slowed down as a whole. Therefore, the inside of the mixing tube is relatively low pressure is less affected by the external air pressure, it is an object to provide a flashback prevention burner that can reduce the backfire of the flame due to the pressure difference in the mixing tube during the digestion of the burner.

또한, 혼합관 내부에서 가스의 분출속도가 일정하게 되면 1차공기가 분사가스와 균일하게 혼합된 후 버너헤드의 염공들로 분출하게 되므로서, 혼합가스의 1차공기량의 부족으로 인한 엘로우팁(Yellow-Tip)을 막는 목적이 있다.In addition, when the flow rate of the gas in the mixing pipe is constant, the primary air is uniformly mixed with the injection gas and then ejected into the salt holes of the burner head, so that the yellow tip due to the lack of the primary air amount of the mixed gas ( Yellow-Tip).

상기와 같은 목적을 달성하기 위한 본 발명은 버너바디 하측 중앙에는 하단에 단턱과, 단턱 주연 내측에는 1차공기투입구와, 내경에는 탭부가 각각 형성된 혼합관을 일체로 형성하고; 상기 혼합관(20)의 단턱(24) 상면에는 원형의 메쉬(32)를 재치한 후 혼합관의 내경의 탭부에는 하부 외경에 나선부와, 내경이 상향 내측으로 경사진 혼합부가 각각 형성된 삽입체를 체결 고정한 것이다.The present invention for achieving the above object is integrally formed with a mixing tube formed at the bottom center of the burner body at the lower end, the primary air inlet and the inner diameter of the inner periphery of the step, respectively, the tab portion; After the circular mesh 32 is placed on the upper surface of the stepped tube 24 of the mixing tube 20, an insert having a spiral portion at a lower outer diameter and a mixing portion having an inner diameter inclined upward inward is provided at a tab portion of an inner diameter of the mixing tube. To fasten it.

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

제1도는 본 발명의 버너를 나타낸 전단면도로서, 버너바디(2) 하측 중앙에는 하단에 메쉬(32)를 재치하기 위한 단턱(24)과, 단턱(24) 주연 내측에는 1차공기투입구(22)와, 내경에는 탭부(26)가 각각 형성된 혼합관(20)을 일체로 형성하고, 상기 혼합관(20)의 단턱(24) 상면에는 원형의 메쉬(32)를 재치한 후; 혼합관(20)의 내경의 탭부(26)에는 하부 외경에 나선부(30)와, 내경이 상향 내측으로 경사진 혼합부(31)로 각각 이루어진 삽입체(28)를 체결고정하며; 상기 버너바디(2) 상측에는 다수의 염공(6)이 형성된 버너헤드(4)와, 버너헤드(4) 상측에는 버너캡(8)을 각각 지지하는 한편, 상기 혼합관(20)의 1차공기투입구(22) 중앙 하부에는 가스공급관(14)의 끝단과 연결된 연료분사노즐(16) 설치한 구성을 나타낸다.1 is a shear cross-sectional view showing a burner of the present invention, a stepped portion 24 for mounting the mesh 32 at the lower center at the bottom center of the burner body 2, and a primary air inlet 22 at the periphery of the stepped portion 24. And an inner diameter of the mixing tube 20 having the tabs 26 formed therein integrally, and a circular mesh 32 is placed on the upper surface of the step 24 of the mixing tube 20; Fastening and fixing the inserts 28 each consisting of a spiral portion 30 and an inner diameter of the mixing portion 31 inclined upwardly inward to the tab portion 26 of the inner diameter of the mixing tube 20; A burner head 4 having a plurality of flame holes 6 formed on the burner body 2 and a burner cap 8 supported on the burner head 4, respectively, and a primary of the mixing pipe 20. The lower part of the center of the air inlet 22 shows the configuration of the fuel injection nozzle 16 connected to the end of the gas supply pipe 14.

특히, 혼합관(20) 내부 하측에 설치되는 메쉬(32) 조립상태를 좀 더 상세히 설명하면, 혼합관(20) 하부 내측에 형성된 단턱(24) 상면에 먼저 메쉬(32)를 삽입 재치한 후, 혼합관(20) 내경에 형성된 탭부(26)에는 하부 외경에 나선부(30)가 형성된 삽입체(28)를 시계 방향으로 회전시켜 삽입체(28) 하단을 하향시켜 메쉬(32)의 주연부가 단턱(24)의 상면과 삽입체(28)의 하단 사이로 위치될 수 있게 된 것이다.In particular, when the assembly state of the mesh 32 installed in the lower side of the mixing tube 20 will be described in more detail, the mesh 32 is first inserted into the upper surface of the step 24 formed in the lower side of the mixing tube 20. In the tab portion 26 formed at the inner diameter of the mixing tube 20, the insert 28 having the spiral portion 30 formed at the lower outer diameter thereof is rotated in a clockwise direction to lower the lower portion of the insert 28 so that the periphery of the mesh 32 is reduced. The additional step 24 is to be located between the upper surface and the lower end of the insert (28).

이와 같이 구성된 본 발명의 작용효과를 설명하면 다음과 같다.Referring to the effects of the present invention configured as described above are as follows.

혼합관(20)의 1차공기투입구 중앙 하부에 설치된 연료분사노즐(16)에서 가스를 분사하면, 분사된 가스는 혼합관(20) 내측 하부에 설치된 메쉬(32)와 접촉하게 되는데, 이때 연료분사노즐(16)에서 가장 빠른 속도로 분사되는 중앙부의 분사가스가 메쉬(32)의 하면에서 전체적으로 확산된 후, 메쉬(32)의 상부로 투입되게 된다. 그러므로 메쉬(32)의 상부로 투입되는 가스의 속도는 중앙부와 그 주연부의 속도가 균일하게 되며 속도는 전체적으로 떨어지게 되나, 가스의 속도가 일정하게 되어 1차공기를 흡입하는 양이 많게 된다.When gas is injected from the fuel injection nozzle 16 installed at the center lower portion of the primary air inlet of the mixing tube 20, the injected gas comes into contact with the mesh 32 installed at the inner lower portion of the mixing tube 20. The injection gas of the central part injected at the fastest speed from the injection nozzle 16 diffuses from the lower surface of the mesh 32 and then is injected into the upper portion of the mesh 32. Therefore, the velocity of the gas introduced into the upper portion of the mesh 32 is uniform in the speed of the central portion and the peripheral portion and the speed is lowered as a whole, but the velocity of the gas is constant, the amount of intake of the primary air is increased.

또한, 분사가스의 속도가 메쉬 상측에는 느려지므로서, 압력이 기존의 메쉬를 장착하지 않을 때보다 높아져 외부의 기압에 상대적으로 민감하게 반응하지 않게 되며 소화시 혼합관(20) 내부와 버너 외부의 기압차로 인한 역화를 방지할 수 있다는 것이다.In addition, the velocity of the injection gas is lowered on the upper side of the mesh, so that the pressure is higher than when the existing mesh is not mounted, so that it does not react relatively sensitive to the external air pressure. It is possible to prevent backfire due to the pressure difference.

그리고, 삽입체(28) 내부의 혼합부(31)의 상단부가 점차적으로 좁아지게 되어 혼합부(31) 하부에서 1차공기와 혼합된 가스가 투입되면, 상기 혼합부(31)의 상단에서 재차 혼합되여, 버너헤드(4)의 염공(6)들로 분출되므로서 미혼합을 방지하는 것이다.In addition, when the upper end of the mixing part 31 inside the insert 28 is gradually narrowed, and the gas mixed with the primary air is injected from the lower part of the mixing part 31, the mixing part 31 is again provided at the upper end of the mixing part 31. The mixture is sprayed into the flame holes 6 of the burner head 4 to prevent unmixing.

상술한 바와 같은 본 발명은 혼합관 하부에 메쉬를 설치하여, 연료분사노즐에서 분사되는 가스의 분출속도를 일정하게 하므로서, 1차공기를 적정하게 흡입하여 1차공기 부족으로 인한 엘로우팁을 방지하고, 분사속도의 저하로 인한 압력이 높아져 외부기압에 영향을 덜받게 되므로서, 버너의 소화시 역화를 줄일 수 있는 효과가 있다.The present invention as described above, by installing a mesh in the lower portion of the mixing pipe, and the constant spray rate of the gas injected from the fuel injection nozzle, to properly suck the primary air to prevent the yellow tip caused by the lack of primary air As the pressure is increased due to the lowering of the injection speed, it is less affected by the external air pressure, thereby reducing the backfire during the extinguishing of the burner.

Claims (1)

버너바디(2) 하측 중앙에는 하단에 단턱(24)과, 단턱(24) 주연 내측에는 1차공기투입구(22)와, 내경에는 탭부(26)가 각각 형성된 혼합관(20)을 일체로 형성하고; 상기 혼합관(20)의 단턱(24) 상면에는 원형의 메쉬(32)를 재치한 후; 혼합관(20)의 내경의 탭부(26)에는 하부 외경에 나선부(30)와, 내경 상향 내측으로 경사진 혼합부(31)가 각각 형성된 삽입체(28)를 체결 고정한 것을 특징으로 하는 역화방지용 버너.The lower center of the burner body 2 has a stepped portion 24 formed at the lower end, a primary air inlet 22 formed at the inner periphery of the stepped portion 24, and an inner diameter of the mixing pipe 20 having tabs 26 formed therein. and; Placing a circular mesh 32 on the upper surface of the stepped tube 24 of the mixing tube 20; Backlighting characterized in that the tab portion 26 of the inner diameter of the mixing tube 20 is fastened and fixed by inserting the spiral portion 30 and the insert 28 formed with the mixing portion 31 inclined upwardly inward to the lower outer diameter. Prevention burner.
KR1019950068581A 1995-12-30 1995-12-30 Burner for anti-backflow KR100187034B1 (en)

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Application Number Priority Date Filing Date Title
KR1019950068581A KR100187034B1 (en) 1995-12-30 1995-12-30 Burner for anti-backflow

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KR970046968A KR970046968A (en) 1997-07-26
KR100187034B1 true KR100187034B1 (en) 1999-03-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050097725A (en) * 2004-04-02 2005-10-10 엘지전자 주식회사 Structure for supply air and gas in gas radiation burner

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020034563A (en) * 2000-11-02 2002-05-09 구자홍 Burner structure for gas range
KR20020037228A (en) * 2000-11-13 2002-05-18 구자홍 Burner for gas range

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050097725A (en) * 2004-04-02 2005-10-10 엘지전자 주식회사 Structure for supply air and gas in gas radiation burner

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