JPS6315512B2 - - Google Patents
Info
- Publication number
- JPS6315512B2 JPS6315512B2 JP57072117A JP7211782A JPS6315512B2 JP S6315512 B2 JPS6315512 B2 JP S6315512B2 JP 57072117 A JP57072117 A JP 57072117A JP 7211782 A JP7211782 A JP 7211782A JP S6315512 B2 JPS6315512 B2 JP S6315512B2
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- flame hole
- outer cylinder
- combustion chamber
- transition metal
- 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.)
- Expired
Links
- 238000002485 combustion reaction Methods 0.000 claims description 41
- 239000003054 catalyst Substances 0.000 claims description 21
- 229910052723 transition metal Inorganic materials 0.000 claims description 15
- 150000003624 transition metals Chemical class 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 6
- 239000007784 solid electrolyte Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 21
- 229910002089 NOx Inorganic materials 0.000 description 7
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- 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
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0488—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Description
【発明の詳細な説明】
本発明はクリーン燃焼を行なう室内開放形式の
温風暖房装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an indoor open type hot air heating device that performs clean combustion.
窒素酸化物（以下、NOxと記す）、特に二酸化
窒素（以下、NO2と記す）による大気汚染が社
会問題となつているが、近年室内におけるNO2
による汚染にも注意が払われつつある。こうした
情勢の中、従来の室内開放形式の温風暖房装置
は、燃焼部にブンゼンバーナあるいはシユバンク
バーナ等が用いられているが、前者のブンゼンバ
ーナは燃焼排気ガス中のNOx、NO2が多いとい
う問題があり、後者のシユバンクバーナはNOx
の発生量がブンゼンバーナに比較し少ないが、
NOxに占めるNO2の比率が高いと共に、着火過
程から安定燃焼域までに時間を要するという問題
とバーナコストが高いという経済的な問題も有し
ている。 Air pollution caused by nitrogen oxides (hereinafter referred to as NOx), especially nitrogen dioxide (hereinafter referred to as NO 2 ), has become a social problem, but in recent years indoor NO 2
Attention is also being paid to pollution caused by Under these circumstances, conventional indoor open-air heating systems use Bunsen burners or Schwank burners in the combustion section, but the former Bunsen burners produce a lot of NOx and NO 2 in the combustion exhaust gas. There is a problem that the latter type of bunker burner is NOx
Although the amount generated is smaller than that of a Bunsen burner,
In addition to having a high proportion of NO 2 in NOx, it also has economic problems such as the time it takes from the ignition process to the stable combustion range and the high burner cost.
本発明はこのような従来の欠点を除去するもの
で、燃焼排気ガス中のNOx、NO2量を低減する
と共に、燃焼の立上り特性を良好し、半導体ガス
センサ、あるいは固体電解質ガスセンサを設ける
ことにより安全性を良好なものにすることを目的
とする。 The present invention eliminates these conventional drawbacks by reducing the amount of NOx and NO2 in combustion exhaust gas, improving the combustion start-up characteristics, and improving safety by providing a semiconductor gas sensor or a solid electrolyte gas sensor. The purpose is to improve sexuality.
この目的を達成するために本発明は、燃焼部に
金属性外筒と該外筒の内側に円筒状の金網よりな
る炎孔とを混合管にて固定してなる表面燃焼バー
ナと、前記表面燃焼バーナの燃焼室内に、半導体
ガスセンサあるいは固体電解質ガスセンサを設
け、燃焼室直上にラス網状の遷移金属系触媒を水
平に設けると共に、送風機は投影面積が前記遷移
金属系触媒よりも大なる整流板を介し、前記燃焼
部の直上に設けたものである。 In order to achieve this object, the present invention provides a surface combustion burner in which a metallic outer cylinder is fixed to the combustion part, and a flame hole made of a cylindrical wire mesh is fixed to the inside of the outer cylinder by a mixing tube; A semiconductor gas sensor or a solid electrolyte gas sensor is provided in the combustion chamber of the combustion burner, a transition metal catalyst in the form of a lath network is provided horizontally directly above the combustion chamber, and the blower is provided with a rectifying plate whose projected area is larger than that of the transition metal catalyst. It is provided directly above the combustion section.
この構成によつて、円筒状の金網炎孔上に、
1100゜K前後の均一な全一次表面燃焼火炎を形成
するため、サーマルNOxの生成は極めて少なく、
しかもNOx中のNO2は遷移金属系触媒によりNO
に還元されると共に、COも一部CO2に酸化され
る。又、炎孔は熱容量の少ない金網炎孔であるた
め、立上り特性は極めて良好である。又、半導体
ガスセンサ、固体電解質ガスセンサにより、室内
酸素濃度の制御、不完燃焼時、立消え時等の安全
性が確保できることになる。 With this configuration, on the cylindrical wire mesh flame hole,
Because a uniform all-primary surface combustion flame of around 1100°K is formed, thermal NOx generation is extremely low.
Moreover, NO 2 in NOx is converted to NO by a transition metal catalyst.
At the same time, some CO is also oxidized to CO2 . In addition, since the flame hole is a wire mesh flame hole with low heat capacity, the start-up characteristics are extremely good. Furthermore, the semiconductor gas sensor and the solid electrolyte gas sensor can control the indoor oxygen concentration and ensure safety in the event of incomplete combustion, extinction, etc.
以下、本発明の一実施例を図面を用いて説明す
る。 An embodiment of the present invention will be described below with reference to the drawings.
図において、１はノズルであり、混合管２に対
向して設けられ、前記混合管２には、金属性外筒
３と円筒状の金網よりなる炎孔４が固定され、混
合管２を通り、燃焼室５内に、シール用金属管６
ａ，６ｂを介し、半導体ガスセンサあるいは固体
電解質ガスセンサ７および放電プラグ８が固定さ
れている。遷移金属系触媒９は２次空気の防止で
きる位置に、燃焼室５と排気ガス流出方向以外は
密閉構造になるように設けられている。送風機１
０は、投影面積が遷移金属系触媒９よりも大なる
整流板１１低負荷全一次表面燃焼バーナ１２の直
上に配置し、温風通路壁１３は前記整流板１１、
遷移金属系触媒９、外筒３を囲繞する構成とし、
さらに前面の下方に吹出し口１４を備える外装体
１５より覆うことにより構成されている。 In the figure, reference numeral 1 denotes a nozzle, which is provided facing the mixing tube 2. A metal outer cylinder 3 and a flame hole 4 made of a cylindrical wire mesh are fixed to the mixing tube 2, and the flame hole 4 is fixed to the mixing tube 2. , a sealing metal tube 6 in the combustion chamber 5
A semiconductor gas sensor or solid electrolyte gas sensor 7 and a discharge plug 8 are fixed via a and 6b. The transition metal catalyst 9 is provided in a position where secondary air can be prevented, so that the structure is sealed except for the combustion chamber 5 and the exhaust gas outflow direction. Blower 1
0, a rectifier plate 11 whose projected area is larger than that of the transition metal catalyst 9 is placed directly above the low-load all-primary surface combustion burner 12, and the hot air passage wall 13 is the rectifier plate 11,
The transition metal catalyst 9 is configured to surround the outer cylinder 3,
Furthermore, it is covered by an exterior body 15 having an air outlet 14 at the lower part of the front surface.
このように、ガスセンサ７および放電プラグ８
がシール用金属管６ａ，６ｂを介して、燃焼室５
に固定されていると共に、整流板１１により、空
気が遷移金属系触媒９面に流入しないため、燃焼
室５内への２次空気の流入を防止できる。このた
め、２次空気による炎孔冷却によるCOの発生の
制御および、ガスセンサ７の誤動作を防止でき
る。又、遷移金属系触媒９と燃焼室５の密閉を保
つことにより、２次空気による燃焼排気ガスの急
冷に伴うNOのNO2の酸化を抑制でき、効率的に
遷移金属系触媒９が作用できる。 In this way, the gas sensor 7 and the discharge plug 8
is connected to the combustion chamber 5 through the sealing metal tubes 6a and 6b.
In addition, the baffle plate 11 prevents air from flowing into the surface of the transition metal catalyst 9, thereby preventing secondary air from flowing into the combustion chamber 5. Therefore, it is possible to control the generation of CO by cooling the flame hole with secondary air and prevent malfunction of the gas sensor 7. Furthermore, by keeping the transition metal catalyst 9 and the combustion chamber 5 airtight, it is possible to suppress the oxidation of NO2 caused by the rapid cooling of the combustion exhaust gas by secondary air, and the transition metal catalyst 9 can work efficiently. .
以上のように本発明の燃焼部は低炎孔負荷の全
一次表面燃焼バーナとし、遷移金属系触媒におい
ては、送風機を投影面積が同遷移金属系触媒より
も大なる整流板を介して、燃焼部の直上に設け、
送風機によつて誘起された空気が、同触媒面に流
入しない構成とし、かつ同触媒位置を、高温酸化
雰囲気中とし、ガスセンサーにおいては、同ガス
センサー近傍に２次空気が存在しない構成とし、
かつ同ガスセンサー部位置を、前記低炎孔負荷全
一次表面燃焼バーナの下端とすることにより、以
下の効果が得られる。 As described above, the combustion section of the present invention is an all-primary surface combustion burner with a low flame pore load, and in the case of a transition metal catalyst, the blower is connected to a rectifier plate whose projected area is larger than that of the transition metal catalyst. installed directly above the
The configuration is such that air induced by the blower does not flow into the catalyst surface, the catalyst is located in a high-temperature oxidizing atmosphere, and the gas sensor is configured such that no secondary air exists near the gas sensor,
In addition, by positioning the gas sensor portion at the lower end of the low flame hole load all primary surface combustion burner, the following effects can be obtained.
(1) 低炎孔負荷全一次表面燃焼バーナと遷移金属
系触媒によつて、排気ガス中におけるNOx濃
度（O2＝０％換算）を３〜5ppm以下にでき
る。また前述したように、触媒面は整流板によ
り、空気による冷却から保護されている。この
ため、高温雰囲気の触媒によつて、NO2はNO
に熱解離されると共に、未燃焼分のCOも一部
CO2に酸化することができる。(1) The NO x concentration (converted to O 2 = 0%) in exhaust gas can be reduced to 3 to 5 ppm or less by using a low-flame-hole-load all-primary surface combustion burner and a transition metal catalyst. Further, as described above, the catalyst surface is protected from cooling by air by the baffle plate. Therefore, NO 2 is converted to NO by the catalyst in the high temperature atmosphere.
In addition to being thermally dissociated, some unburned CO is also released.
Can be oxidized to CO2 .
(2) 弱燃焼時に、触媒が燃焼室内を高温状態に保
つとともに整流板により、空気が触媒を介して
燃焼室内に流入しないことから、炎孔面での保
炎性ならびに未燃物の酸化が促進されることに
より、T.D.Rが拡大できる。(2) During weak combustion, the catalyst maintains a high temperature inside the combustion chamber, and the baffle plate prevents air from flowing into the combustion chamber through the catalyst, improving flame stability at the flame hole surface and preventing oxidation of unburned materials. By promoting this, TDR can be expanded.
(3) 低炎孔負荷全一次表面燃焼バーナの燃焼が最
も悪化する位置に、ガスセンサーを設けている
ため、万一の場合でも、安全裡に燃焼を停止で
きる。(3) A gas sensor is installed in the position where the combustion of the low flame pore load all-primary surface combustion burner deteriorates the most, so even in the unlikely event of an emergency, combustion can be safely stopped.
図は本発明の一実施例による温風暖房装置の横
断面図である。
２……混合管、３……外筒、４……炎孔、５…
…燃焼室、６ａ，６ｂ……シール用の金属管、７
……半導体ガスセンサあるいは固体電解質ガスセ
ンサ、８……放電プラグ、９……遷移金属系触
媒、１０……送風機、１１……整流板、１２……
表面燃焼バーナ、１３……温風通路壁、１５……
外装体、１６……電気回路。
The figure is a cross-sectional view of a hot air heating device according to an embodiment of the present invention. 2... Mixing tube, 3... Outer cylinder, 4... Flame hole, 5...
...Combustion chamber, 6a, 6b...Metal tube for sealing, 7
... Semiconductor gas sensor or solid electrolyte gas sensor, 8 ... Discharge plug, 9 ... Transition metal catalyst, 10 ... Air blower, 11 ... Rectifier plate, 12 ...
Surface combustion burner, 13... Hot air passage wall, 15...
Exterior body, 16...electric circuit.
Claims (1)
し、前記燃焼部は金属性外筒とこの金属性外筒の
内側に円筒状の金網を炎孔とする炎孔部とを混合
管にて固定した低炎孔負荷の全一次表面燃焼バー
ナと、前記全一次表面燃焼バーナの燃焼室内に、
混合管を貫通して同燃焼室内に臨ませたシール用
金属管を介して、前記炎孔部下端なる位置に設け
た半導体あるいは固体電解質ガスセンサと並びに
放電プラグと、燃焼室直上の排気ガス通路内の高
温酸化雰囲気中に、前記金属性外筒と間隙なく水
平に圧接したラス網状の遷移金属系触媒とからな
り、前記送風機は、投影面積が前記遷移金属系触
媒よりも大なる整流板を介し、前記燃焼部の直上
に設けると共に、温風通路壁が、前記整流板、遷
移金属系触媒、外筒を囲繞してなる温風暖房装
置。1 A combustion part, a blower, and an electric circuit are included in the exterior body, and the combustion part is a mixing tube made of a metal outer cylinder and a flame hole part having a cylindrical wire mesh as a flame hole inside the metal outer cylinder. an all-primary surface combustion burner with a low flame hole load fixed in place, and a combustion chamber of the all-primary surface combustion burner,
A sealing metal tube that penetrates the mixing tube and faces into the combustion chamber connects the semiconductor or solid electrolyte gas sensor and discharge plug installed at the lower end of the flame hole, and the exhaust gas passage directly above the combustion chamber. The blower is composed of a transition metal catalyst in the shape of a lath mesh that is horizontally pressed into contact with the metallic outer cylinder without a gap in a high temperature oxidizing atmosphere of . A hot air heating device, which is provided directly above the combustion section, and has a hot air passage wall surrounding the rectifying plate, the transition metal catalyst, and the outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57072117A JPS58190644A (en) | 1982-04-28 | 1982-04-28 | Hot-air type space heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57072117A JPS58190644A (en) | 1982-04-28 | 1982-04-28 | Hot-air type space heating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58190644A JPS58190644A (en) | 1983-11-07 |
| JPS6315512B2 true JPS6315512B2 (en) | 1988-04-05 |
Family
ID=13480087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57072117A Granted JPS58190644A (en) | 1982-04-28 | 1982-04-28 | Hot-air type space heating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58190644A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01151327U (en) * | 1987-11-28 | 1989-10-19 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101596715B1 (en) * | 2014-11-25 | 2016-02-23 | 주식회사 경동나비엔 | Combustion apparatus having structure for cooling combustion chamber |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS571341B2 (en) * | 1980-01-14 | 1982-01-11 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4847032U (en) * | 1971-10-04 | 1973-06-20 | ||
| JPS6119311Y2 (en) * | 1980-06-02 | 1986-06-11 |
-
1982
- 1982-04-28 JP JP57072117A patent/JPS58190644A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS571341B2 (en) * | 1980-01-14 | 1982-01-11 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01151327U (en) * | 1987-11-28 | 1989-10-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58190644A (en) | 1983-11-07 |
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