KR940005111Y1 - Backfire prevention device for gas burner - Google Patents

Backfire prevention device for gas burner Download PDF

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Publication number
KR940005111Y1
KR940005111Y1 KR2019890003856U KR890003856U KR940005111Y1 KR 940005111 Y1 KR940005111 Y1 KR 940005111Y1 KR 2019890003856 U KR2019890003856 U KR 2019890003856U KR 890003856 U KR890003856 U KR 890003856U KR 940005111 Y1 KR940005111 Y1 KR 940005111Y1
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KR
South Korea
Prior art keywords
gas
burner
flame
prevention cap
prevention device
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KR2019890003856U
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Korean (ko)
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KR900017338U (en
Inventor
안대규
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주식회사 금성사
이헌조
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Priority to KR2019890003856U priority Critical patent/KR940005111Y1/en
Publication of KR900017338U publication Critical patent/KR900017338U/en
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Publication of KR940005111Y1 publication Critical patent/KR940005111Y1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/72Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/82Preventing flashback or blowback
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2209/00Safety arrangements
    • F23D2209/10Flame flashback

Abstract

내용 없음.No content.

Description

가스기기용 버너의 역화방지장치Backfire prevention device of gas appliance burner

제1도는 종래 가스기기용 버너의 단면도.1 is a cross-sectional view of a burner for a conventional gas appliance.

제2도는 본 고안이 적용된 가스기기용 버너의 분해 사시도.2 is an exploded perspective view of a burner for a gas appliance to which the present invention is applied.

제3도는 본 고안이 적용된 가스기기용 버너의 단면도.3 is a sectional view of a burner for a gas appliance to which the present invention is applied.

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

2 : 몸체 4 : 홀더2: body 4: holder

6 : 벤츄리관 9 : 역화방지캡6: Venturi tube 9: Flashback prevention cap

9a : 가스유출캡9a: gas outlet cap

본 고안은 가스기기용 버너의 역화방지장치에 관한 것으로, 특히 버너 내부의 가스압과 외부의 가스압 차에 의하여 소화(消火)시 발생되는 역화현상을 방지하도록 한 가스기기용 버너의 역화방지장치에 관한 것이다.The present invention relates to a device for preventing backfire of a burner for a gas appliance, and more particularly to a device for preventing backfire of a burner for a gas appliance to prevent backfire caused by fire due to a difference between a gas pressure inside the burner and an external gas pressure. will be.

종래 가스기기용 버너는 제1도에 도시한 바와같이, 몸체(2)를 프레스 가공(판금가공)하여 일체로 형성하고, 헤드(1)의 오목부 외주면에 등간격으로 화염공(3)을 뚫어 가스가 분출되도록 하면서 몸체(2)의 일측에 가스분출공(8)을 다수개 뚫는다.Conventionally, the burner for a gas appliance is integrally formed by press working (sheet metal working) the body 2 as shown in FIG. 1, and the flame hole 3 is formed at equal intervals on the outer peripheral surface of the recessed part of the head 1. Drill a plurality of gas ejection holes 8 on one side of the body 2 while allowing the gas to be ejected.

이때 가스분출공(8) 하단에 홀더(4)를 접합하여 기밀을 유지하면서 상부에 파일로트관(3)을 위치시키고, 몸체(2)의 저면에는 일측에 혼합관(7)이 구비된 벤츄리관(6)을 연결시켜 가스를 공급받을 수 있도록 되어 있다.At this time, the holder 4 is attached to the lower end of the gas ejection hole 8 so that the pilot tube 3 is positioned on the upper side while maintaining airtightness, and the mixing tube 7 is provided at one side of the bottom surface of the body 2. The pipe 6 is connected so that gas can be supplied.

이러한 종래의 버너는 콕크부 노즐(도시되지 않음)에 설치한 후 가스를 공급하면 가스는 혼합관(7)을 통과하면서 공기와 일정 비율로 혼합되며, 가스와 공기의 혼합기는 벤츄리관(6)을 거쳐 몸체(2) 내부로 유입되어 헤드(1)의 오목부에 형성된 회염공(3)으로 분출된다.Such a conventional burner is installed in a cock nozzle (not shown), and when gas is supplied, the gas is mixed with air while passing through the mixing pipe 7, and the gas and air mixer is mixed with the venturi pipe 6. It is introduced into the body 2 through the blowout to the infecting hole (3) formed in the recess of the head (1).

이때 몸체(2) 내부로 유입되어 화염공(3)으로 분출되는 가스중 일부는 몸체(2)의 일측에 뚫어 놓은 가스분출구(8)를 통하여 분출되어 파일로트관(5)으로 유입되며, 파일로트관(5)으로 유입된 가스는 파일로트관(4)을 거쳐 방전감화기(도시되지 않음)쪽으로 진입하여 정화된 후 역화되어 화염공(3)으로 분출되는 가스에 점화된다.At this time, some of the gas introduced into the body (2) and ejected into the flame hole (3) is ejected through the gas outlet (8) drilled on one side of the body (2) is introduced into the pilot pipe (5), pile The gas introduced into the lot tube 5 enters the discharge tube (not shown) through the pilot tube 4, is purified, and then backfired to ignite the gas ejected into the flame hole 3.

그러나 이러한 종래의 가스기기용 버너에서는 가스가 연소중일때 소화시키면 몸체(2)의 내부의 압력이 몸체(2)의 외부의 압력보다 크거나 같을 때에는 바로 역화하여 몸체(2) 내부의 잔류가스를 순간적으로 폭발연소시키게 되며, 이에 따라 심한 소화음(폭발음)이 발생하게 되어 사용자들에게 공포감을 주게 되며 제품의 신뢰성이 좋지 않게 되는 문제점이 있었다.However, in such a conventional burner for gas appliances, if the gas is burned during combustion, when the pressure inside the body 2 is greater than or equal to the pressure outside the body 2, the gas is backfired immediately to recover residual gas inside the body 2. Instantly exploded and burned, resulting in severe fire extinguishing (explosion sound) to give a sense of fear to the user and the reliability of the product was not good.

본 고안의 목적은, 연소 도중 소화시키는 경우 몸체 내부와 외부의 압력 차에 의한 역화와 이에 따른 폭발음의 발생을 확실하게 방지할 수 있도록 한 가스기기용 버너의 역화 방지장치를 제공하려는 것이다.It is an object of the present invention to provide a device for preventing backfire of a burner for a gas appliance, which is capable of reliably preventing backfire due to a pressure difference between the inside and the outside of the body when it is extinguished during combustion and the generation of an explosion sound.

이러한 본 고안의 목적을 달성하기 위하여 상단 외주면에 다수개의 화염공을 가지는 몸체와 내부에 하단부가 개방되고 상단부는 막히며 외주면에는 다수개의 가스유출갭이 형성된 역화방지캡을 삽입설치하여 몸체의 하단에 고정되는 벤츄리관과 화염공이 가스유출갭과 역화방지캡의 내부를 통하여 연통되도록 하여서 됨을 특징으로 하는 가스기기용 버너의 역화방지장치가 제공된다.In order to achieve the object of the present invention, the body having a plurality of flame holes on the upper outer peripheral surface and the lower end is opened and the upper end is blocked, the outer circumferential surface is installed by inserting a flashback prevention cap formed with a plurality of gas leakage gap at the bottom of the body Provided is a flame arrester of the gas appliance burner, characterized in that the venturi tube and the flame hole to be fixed is communicated through the interior of the gas leakage gap and the flame arrest cap.

이하 본 고안에 의한 가스기기용 버너의 역화방지장치를 첨부도면에 도시한 실시예에 따라서 상세히 설명한다.Hereinafter, a device for preventing backfire of a burner for a gas appliance according to the present invention will be described in detail according to an embodiment shown in the accompanying drawings.

제2도는 본 고안이 적용된 가스기기용 버너의 분해사시도이고, 제3도는 단면도를 나타내는 것으로, 헤드(1)와 몸체(2)가 일체로 형성되어 헤드(1)의 오목부 외주면에 화염공(3)이 등간격으로 천공되고, 몸체(2)의 일측에 가스분출공(8)이 천공되고, 그 하단에 홀더(4)가 말아붙이 작업으로 부착되며, 홀더(4)의 상부에 파일로트관(5)이 설치되고, 몸체(2)의 저면에는 일측에 혼합관(7)을 가지는 벤츄리관(6)이 연결된다.2 is an exploded perspective view of a burner for a gas appliance to which the present invention is applied, and FIG. 3 is a cross-sectional view, in which a head 1 and a body 2 are integrally formed so that a flame hole may be formed on an outer circumferential surface of the recess 1 of the head 1. 3) is drilled at equal intervals, the gas ejection hole 8 is drilled on one side of the body 2, the holder 4 is attached to the lower end by a rolling work, and the pilot on the upper part of the holder 4 The tube 5 is installed, the venturi tube 6 having a mixing tube 7 on one side is connected to the bottom of the body (2).

상기 몸체(2)의 내부에는 다수개의 가스유출갭(9a)을 형성한 역화방지캡(9)이 삽입설치되어 있다.The flashback prevention cap 9 having a plurality of gas outlet gaps 9a is inserted into the body 2.

역화방지캡(9)은 알루미늄재로 형성되는 것이며, 몸체(2)와 홀더(4)를 부착하기 전에 몸체(2)의 내부에 유동되지 않도록 삽입된다.Flashback prevention cap (9) is formed of an aluminum material, and is inserted so as not to flow inside the body (2) before attaching the body (2) and the holder (4).

역화방지캡(9)의 하단부는 개방되어 그 내부가 혼합관(7)과 연통되며, 상단은 막힘과 아울러 헤드(1)의 저면과 일치하는 형상으로 형성되어 있고, 하단부 가장자리에서는 홀더(4)의 바닥면과 일치하는 직경의 플랜지부로 형성되어 있으며, 외주벽에는 다수개의 가스유출갭(9a)이 천공되어 있다.The lower end of the flashback prevention cap 9 is opened so that the inside thereof communicates with the mixing tube 7, and the upper end is formed in a shape that is clogged and coincides with the bottom of the head 1, and at the lower edge of the holder 4. It is formed of a flange portion having a diameter corresponding to the bottom surface of the, and a plurality of gas outlet gap (9a) is perforated on the outer peripheral wall.

가스유출갭(9a)은 역화방지캡(9)의 하부측에 위치시킴으로써 조립상태에서 화염공(3)으로 부터의 거리를 멀게 하는 것이 바람직하다.The gas outlet gap 9a is preferably located at the lower side of the flashback prevention cap 9 so as to increase the distance from the flame hole 3 in the assembled state.

역화방지캡(9)은 몸체(2)와 홀더(4)를 접합하기 전에 몸체(2)내에 삽입한 상태에서 몸체(2)와 홀더(4)를 접합하는 것이다.Flashback prevention cap (9) is to join the body (2) and the holder (4) in the state inserted into the body (2) before joining the body (2) and the holder (4).

이와 같이 구성된 본 고안의 역화방지장치가 적용된 가스기기용 버너는, 가스기기의 콕노즐에 혼합관(7)을 통하여 연결되어 가스와 공기의 혼합기가 공급되면, 혼합관(7)과 벤츄리관(6)을 거쳐 역화방지캡(9)의 내부로 유입되고, 유입된 혼합하는 역화방지캡(9)의 가스유출캡(9a)을 통하여 분출되어 일반적인 방법으로 점화되고 연소되는 것이다.The burner for a gas appliance to which the flashback preventing device of the present invention configured as described above is applied is connected to the cock nozzle of the gas appliance through the mixing tube 7, and when the gas and air mixer is supplied, the mixing tube 7 and the venturi tube ( 6) is introduced into the flashback prevention cap (9), it is ejected through the gas outflow cap (9a) of the flashback prevention cap (9) to be mixed is ignited and burned in a general manner.

이때 연소중인 상태에서 소화하면, 역화방지캡(9)의 가스유출갭(9a)과 화염공(3)과의 거리가 멀기 때문에 역화방지캡(9)내의 잔류가스가 역화에 의하여 점화되는 일이 없게 된다.At this time, when extinguishing in the combustion state, since the distance between the gas outlet gap 9a of the flame arrest cap 9 and the flame hole 3 is far, the residual gas in the flame arrest cap 9 is ignited by flashback. There will be no.

즉, 소화되는 시점에서 몸체(2)와 역화방지캡(9)의 사이에는 가스가 잔류하지 않게 되며, 역화방지캡(9)의 내부에 잔류하는 가스는 역화방지캡(9)의 하부측에 천공된 가스유출갭(9a)을 통하여서만 유출될 수 있으며, 이 가스유출갭(9a)는 화염공(3)으로부터 멀리 이격되어 있으므로 소화시 역화에 의하여 연소되지 않게 되는 것이다.That is, at the time of extinguishing, no gas remains between the body 2 and the flashback prevention cap 9, and the gas remaining inside the flashback prevention cap 9 is located at the lower side of the flashback prevention cap 9. It can only flow out through the perforated gas outflow gap 9a, and this gas outflow gap 9a is spaced far from the flame hole 3 so that it is not burned by backfire during fire extinguishing.

따라서 본 고안에 의하면 연소도중에 소화시킬 경우 역화에 의하여 몸체(2)내부의 잔류가스가 폭발적인 연소를 하면서 심한 소음을 발생시키게 되는 일이 없어 사용자가 안심하고 사용할 수 있으며, 제품의 신뢰성을 높일 수 있게 되는 것이다.Therefore, according to the present invention, when extinguishing during combustion, the residual gas inside the body (2) does not generate severe noise by explosive combustion due to backfire, so that the user can use it with confidence and improve the reliability of the product. Will be.

Claims (1)

상단 외주면에 다수개의 화염공(3)을 가지는 몸체(2)와 내부에 하단부가 개방되고 상단부는 막히며 외주면에는 다수개의 가스유출갭(9a)이 형성된 역화방지캡(9)을 삽입설치하여 몸체(2)의 하단에 고저되는 벤츄리관(6)과 화염공(3)이 가스유출갭(9a)과 역화방지캡(9)의 내부를 통하여 연통되도록 하여서 됨을 특징으로 하는 가스기기용 버너의 역화방지장치.Body (2) having a plurality of flame holes (3) on the upper outer peripheral surface and the lower end is opened, the upper end is blocked, and inserted into the flame prevention cap (9) formed with a plurality of gas leakage gap (9a) on the outer peripheral surface Back vent of the gas appliance burner, characterized in that the venturi tube 6 and the flame hole (3) at the bottom of the (2) is communicated through the interior of the gas outlet gap (9a) and the flashback prevention cap (9) Prevention device.
KR2019890003856U 1989-03-31 1989-03-31 Backfire prevention device for gas burner KR940005111Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019890003856U KR940005111Y1 (en) 1989-03-31 1989-03-31 Backfire prevention device for gas burner

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Application Number Priority Date Filing Date Title
KR2019890003856U KR940005111Y1 (en) 1989-03-31 1989-03-31 Backfire prevention device for gas burner

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KR900017338U KR900017338U (en) 1990-10-05
KR940005111Y1 true KR940005111Y1 (en) 1994-07-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021071275A1 (en) * 2019-10-11 2021-04-15 한국가스공사 Combustion apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021071275A1 (en) * 2019-10-11 2021-04-15 한국가스공사 Combustion apparatus
KR20210043783A (en) * 2019-10-11 2021-04-22 한국가스공사 Apparatus for combustion

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