EP3232133A1 - Brenner mit niedrigem nox-gehalt - Google Patents

Brenner mit niedrigem nox-gehalt Download PDF

Info

Publication number
EP3232133A1
EP3232133A1 EP17165975.8A EP17165975A EP3232133A1 EP 3232133 A1 EP3232133 A1 EP 3232133A1 EP 17165975 A EP17165975 A EP 17165975A EP 3232133 A1 EP3232133 A1 EP 3232133A1
Authority
EP
European Patent Office
Prior art keywords
burner
flame
gas
combustion
burner ports
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.)
Withdrawn
Application number
EP17165975.8A
Other languages
English (en)
French (fr)
Inventor
Rongxin ZHAO
Yongqiang Wang
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.)
Liju Thermal Equipment Technology Co Ltd
Original Assignee
Liju Thermal Equipment Technology Co Ltd
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 CN201620304631.7U external-priority patent/CN205560735U/zh
Priority claimed from CN201610226514.8A external-priority patent/CN105889918B/zh
Application filed by Liju Thermal Equipment Technology Co Ltd filed Critical Liju Thermal Equipment Technology Co Ltd
Publication of EP3232133A1 publication Critical patent/EP3232133A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/70—Baffles or like flow-disturbing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/11401—Flame intercepting baffles forming part of burner head

Definitions

  • This present invention relates to an efficient environmentally friendly burner: a low NO x burner that uses premixed air and gas as fuel and water as medium of heat transfer.
  • a low NO x burner that uses premixed air and gas as fuel and water as medium of heat transfer.
  • the present invention overcomes the aforementioned shortcomings in the prior art and provides a combustion device which is simple and reliable in structure, can fully mix air and gas, enables the gas to burn stably, solves the problems of backfire detonation, blockage, etc. and can reduce NO x emission.
  • Two water chambers are designed with the burner, one above and the other below the burner ports and flame stabilizers. As cooling water is infused in the burner ports, flashback of flame from the combustion chamber to the mixing chamber is avoided. Meanwhile, the lowered temperature of flame restrains the formation of NO x .
  • a row of flame stabilizers composed of a number of cylinder pipes, is arranged in front of the burner ports. These pipes perform the role of a bluff body of airflow. When the burning gas passes them, a negative pressured is formed in the back, which facilitates the combustion of unburned gas. In this way, a continuous and stable process of combustion is achieved.
  • the cooling water in the pipes lowers the temperature of the flame, thus the formation of NO x is reduced. Infusing cooling water into the bluff of airflow inside a combustion device is the most significant characteristic of this device, and the method of controlling combustion temperature of flame through the adjustment of the quantity of heat of each unit area is also a key point of this invention.
  • FIG. 1 it is a combustion device consists of burner ports, flame stabilizers, upper and lower water chambers, and a mixing chamber.
  • two water chambers are designed with the burner, one above and the other below the burner ports and flame stabilizers. Both the burner ports and the flame stabilizers are infused with cooling water.
  • the burner ports are formed by a number of rectangular tubes with gaps in between that function as passageway for air and gas.
  • the burner ports are infused with cooling water to effectively prevent the flashback of flame as well as lower the combustion temperature. A minimized formation of NO x is therefore achieved.
  • a row of flame stabilizers composed of a number of cylinder pipes, is arranged in front of the burner ports. These pipes perform the role of a bluff body of airflow. When the burning gas passes them, a negative pressured is formed in the back, which facilitates the combustion of unburned gas. In this way, a continuous and stable process of combustion is achieved.
  • the cooling water in the pipes lowers the temperature of the flame, thus the formation of NO x is reduced.
  • Premixed air and gas flow evenly through the gaps between the burner ports, which causes a pressure drop that divides the combustion chamber and mixing chamber into two units of different pressures.
  • the ignition and combustion of gas then take place in the combustion chamber. Different combustion power can be reached through adjusting the amount of premixed air and gas into the mixing chamber.
  • Gaps between burner ports and cooling water infused in both burner ports and flame stabilizers are the innovative features of this invention. It solves the problem of flashback of flame and blockage in traditional burners and lowers the temperature of combustion flame. A minimized formation of NO x is therefore achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP17165975.8A 2016-04-13 2017-04-11 Brenner mit niedrigem nox-gehalt Withdrawn EP3232133A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201620304631.7U CN205560735U (zh) 2016-04-13 2016-04-13 低nox燃烧机
CN201610226514.8A CN105889918B (zh) 2016-04-13 2016-04-13 一种低nox燃烧机

Publications (1)

Publication Number Publication Date
EP3232133A1 true EP3232133A1 (de) 2017-10-18

Family

ID=58536864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17165975.8A Withdrawn EP3232133A1 (de) 2016-04-13 2017-04-11 Brenner mit niedrigem nox-gehalt

Country Status (1)

Country Link
EP (1) EP3232133A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110631260A (zh) * 2019-10-14 2019-12-31 西安交通大学 一种圆柱形缝隙式全预混水冷燃烧头

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915620A (en) * 1985-10-05 1990-04-10 Joh. Vaillant Gmbh & Co. Burner, in particular atmospheric pre-mix gas burner, and cooling rods therefor
US5711661A (en) * 1994-05-03 1998-01-27 Quantum Group, Inc. High intensity, low NOx matrix burner
JP3221582B2 (ja) * 1992-09-09 2001-10-22 株式会社三浦研究所 低ＮＯｘ、及び低ＣＯ燃焼装置
US20060177784A1 (en) * 2005-02-10 2006-08-10 Miura Co. Ltd. Boiler and low-NOx combustion method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915620A (en) * 1985-10-05 1990-04-10 Joh. Vaillant Gmbh & Co. Burner, in particular atmospheric pre-mix gas burner, and cooling rods therefor
JP3221582B2 (ja) * 1992-09-09 2001-10-22 株式会社三浦研究所 低ＮＯｘ、及び低ＣＯ燃焼装置
US5711661A (en) * 1994-05-03 1998-01-27 Quantum Group, Inc. High intensity, low NOx matrix burner
US20060177784A1 (en) * 2005-02-10 2006-08-10 Miura Co. Ltd. Boiler and low-NOx combustion method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110631260A (zh) * 2019-10-14 2019-12-31 西安交通大学 一种圆柱形缝隙式全预混水冷燃烧头
CN110631260B (zh) * 2019-10-14 2024-03-15 西安交通大学 一种圆柱形缝隙式全预混水冷燃烧头

Similar Documents

Publication Publication Date Title
TWI519739B (zh) 燃燒器及具備該燃燒器之鍋爐
WO2009022449A1 (ja) 燃焼装置
CN109695877B (zh) 一种两级燃烧式火排燃烧器
CN104595900A (zh) 低氮氧化物燃气燃烧器及其燃烧方法
CN207716414U (zh) 一种轴向和径向稳燃的预混气体多孔介质燃烧器
JP6029857B2 (ja) 濃淡バーナ
EP3232133A1 (de) Brenner mit niedrigem nox-gehalt
KR100495505B1 (ko) 다단제어를 구현하는 가스연소 버너
CN201277545Y (zh) 自动比调负压燃烧器
CN109654491A (zh) 一种内轴向水冷预混燃烧装置
KR101328255B1 (ko) 연소속도가 다른 복수의 가스를 사용하는 버너
CN209458925U (zh) 全预混燃烧装置及全预混锅炉
CN216744342U (zh) 低氮燃烧器
CN109442411B (zh) 一种气体燃料的低氮燃烧器
CN109780537A (zh) 全预混燃烧装置及全预混锅炉
CN215909094U (zh) 恒功率低氮氧化物点火枪
CN113654082A (zh) 恒功率低氮氧化物点火枪及其使用方法
CN203940430U (zh) 一种与灶具配套使用的鼓风式燃烧器
CN203703970U (zh) 一种红外线加热装置
CN103115360B (zh) 燃气短火焰高温工业燃烧器
CN207865371U (zh) 一种超低NOx和高节能蓄热式多级燃烧器
CN216925165U (zh) 一种梭式窑天然气纯氧烧嘴和梭式窑
TWI810718B (zh) 氫能燃燒器之噴注系統
CN103900088A (zh) 一种灶具用鼓风式燃烧器
CN104180371A (zh) 燃烧器

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20180419