CN111271872A - 低氮燃气两用炉 - Google Patents

低氮燃气两用炉 Download PDF

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CN111271872A
CN111271872A CN201811469288.1A CN201811469288A CN111271872A CN 111271872 A CN111271872 A CN 111271872A CN 201811469288 A CN201811469288 A CN 201811469288A CN 111271872 A CN111271872 A CN 111271872A
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卢吉
徐金金
周高云
徐德明
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
    • 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
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/007—Supplying oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

一种低氮燃气两用炉，包括外壳(8)及设于外壳(8)内的燃烧器(1)，该燃烧器具有燃气进气管路(11)，还包括内壳(7)、中空纤维空气分离膜(2)及空压机(6)，内壳(7)设于前述外壳(8)内，而前述的燃烧器位于内壳(7)内，该内壳(7)设有出气限压阀(71)；中空纤维空气分离膜(2)具有空气进气端、富氧出气端和富氮出气端，前述的富氧出气端与燃烧器(1)连通，前述的富氮出气端通入到内壳(7)内。富氧气体通入燃烧器内和燃气混合，因氮气高温所产生的氮氧化物减少，从而减少氮氧化物排放及空气污染，同时富氮气体通入内壳内，防止燃气泄漏到密封腔内起火爆炸，起到防火易燃的作用。

Description

低氮燃气两用炉
技术领域
本发明涉及一种采暖和洗浴两用炉。
背景技术
目前两用炉基本结构包括采暖管路、洗浴管路、板式换热器、燃烧器和膨胀水箱，燃烧器给采暖管路加热，洗浴管路通过板式换热器从采暖管路中获得热量，膨胀水箱于采暖管路连接，起到缓解采暖回路和生活水回路中循环水的涨缩量的作用。相关的文献可以参考专利号为00214321.6的中国实用新型专利《家用燃气采暖热水两用炉》(授权公告号为CN2424413Y)；还可以参考专利号为ZL200720056386.3的中国实用新型专利《落地储水式供暖/热水燃气两用炉》(授权公告号为CN201104017YY)。
燃烧器由空气和燃气混合进行燃烧，空气中存在大量的氮气，高温燃烧后会产生大量的氮氧化物，而氮氧化物会造成空气污染，同时部分氮气会将热量带走，降低燃烧效率。另外，两用炉防火防爆措施不够，存在安全隐患。
发明内容
本发明所要解决的技术问题是针对上述的技术现状而提供一种既能降低氮氧化物排放又能防爆防火的低氮燃气两用炉。
本发明解决上述技术问题所采用的技术方案为：一种低氮燃气两用炉，包括外壳及设于外壳内的燃烧器，该燃烧器具有燃气进气管路，其特征在于该两用炉还包括
内壳，设于前述外壳内，而前述的燃烧器位于内壳内，该内壳设有出气限压阀；
中空纤维空气分离膜，具有空气进气端、富氧出气端和富氮出气端，前述的富氧出气端与燃烧器连通，前述的富氮出气端通入到内壳内；以及
所述的两用炉内设有采暖管路和洗浴管路，前述采暖管路上设有板式换热器，所述的洗浴管路则与板式换热器换热连接。
所述的采暖管路上设有与板式换热器并联的旁通路，该旁通路上设有采暖管路堵塞时能打开的旁通阀。可以防止采暖管路因堵塞引起的爆裂。
进一步，所述的洗浴管路与采暖管路之间设有补水管，该补水管上设有补水阀。
作为优选，所述中空纤维空气分离膜位于内壳内，所述的空压机位于外壳内且位于内壳外。
进一步，所述富氧出气端和富氮出气端分别设有富氧调节阀和富氮调节阀。
与现有技术相比，本发明的优点在于：富氧气体通入燃烧器内和燃气混合，因氮气高温所产生的氮氧化物减少，从而减少氮氧化物排放及空气污染；所需富氧气体流量较空气少，带走的热量更低，燃烧效率提高。同时富氮气体通入内壳内，防止燃气泄漏到密封腔内起火爆炸，起到防火易燃的作用。
附图说明
图1为实施例结构示意图。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
如图1所示，低氮燃气两用炉包括外壳8、内壳7、中空纤维空气分离膜2、空压机6、采暖管路3、洗浴管路4燃烧器1、热交换器81，该燃烧器具有燃气进气管路11。
内壳7设于外壳8内，燃烧器1和热交换器81位于内壳7内，该内壳7设有出气限压阀71
中空纤维空气分离膜2也位于内壳7内并具有空气进气端、富氧出气端和富氮出气端，富氧出气端与燃烧器1连通，富氮出气端通入到内壳7内；富氧出气端和富氮出气端分别设有富氧调节阀21和富氮调节阀22。
空压机6位于外壳8内且位于内壳7外，空压机6出气端与中空纤维空气分离膜2的空气进气端连接。本实施例采用涡轮增压装置。
采暖管路3上设有水泵83和板式换热器9，洗浴管路4与板式换热器9换热连接。采暖管路3连接有膨胀水箱82。
采暖管路3上设有与板式换热器9并联的旁通路32，该旁通路32上设有采暖管路3堵塞时能打开的旁通阀33。洗浴管路4与采暖管路3之间设有补水管5，该补水管5上设有补水阀51。
当燃气两用炉燃烧工作时，空压机6将常压空气转换为高压空气通入中空纤维空气分离膜，经空气分离后产生两路气体分别为富氮气体和富氧气体，其中富氧气体通入燃烧器内与燃气混合燃烧，减少氮氧化物排放及空气过量系数，提高燃烧效率，富氮气体通入内壳内对内壳内气体进行气体置换，由于富氮气体具有不可燃性，从而达到防火抑燃的防护作用。

Claims (6)

1.一种低氮燃气两用炉，包括外壳(8)及设于外壳(8)内的燃烧器(1)，该燃烧器具有燃气进气管路(11)，其特征在于该两用炉还包括
内壳(7)，设于前述外壳(8)内，而前述的燃烧器位于内壳(7)内，该内壳(7)设有出气限压阀(71)；
中空纤维空气分离膜(2)，具有空气进气端、富氧出气端和富氮出气端，前述的富氧出气端与燃烧器(1)连通，前述的富氮出气端通入到内壳(7)内；以及
空压机(6)，出气端与前述中空纤维空气分离膜(2)的空气进气端连接。
2.根据权利要求1所述的低氮燃气两用炉，其特征在于所述的两用炉内设有采暖管路(3)和洗浴管路(4)，前述采暖管路(3)上设有板式换热器(9)，所述的洗浴管路(4)则与板式换热器(9)换热连接。
3.根据权利要求1所述的低氮燃气两用炉，其特征在于所述的采暖管路(3)上设有与板式换热器(9)并联的旁通路(32)，该旁通路(32)上设有采暖管路(3)堵塞时能打开的旁通阀(33)。
4.根据权利要求1所述的低氮燃气两用炉，其特征在于所述的洗浴管路(4)与采暖管路(3)之间设有补水管(5)，该补水管(5)上设有补水阀(51)。
5.根据权利要求1所述的低氮燃气两用炉，其特征在于所述中空纤维空气分离膜(7)位于内壳(7)内，所述的空压机(6)位于外壳(8)内且位于内壳(7)外。
6.根据权利要求1所述的低氮燃气两用炉，其特征在于所述富氧出气端和富氮出气端分别设有富氧调节阀(21)和富氮调节阀(22)。
CN201811469288.1A 2018-12-04 2018-12-04 低氮燃气两用炉 Pending CN111271872A (zh)

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CN1673625A (zh) * 2004-03-26 2005-09-28 方雄 一种节能环保的燃烧方法及设备
CN1700812A (zh) * 2005-04-21 2005-11-23 江苏梅兰化工股份有限公司 一种大功率防爆电加热装置
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KR20140038257A (ko) * 2012-09-20 2014-03-28 한국전력공사 순산소 연소 보일러의 운전제어방법
CN105953409A (zh) * 2016-06-27 2016-09-21 河南中托力合化学有限公司 一种立式燃气热媒炉节能装置
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