JPH058326B2 - - Google Patents
Info
- Publication number
- JPH058326B2 JPH058326B2 JP63043490A JP4349088A JPH058326B2 JP H058326 B2 JPH058326 B2 JP H058326B2 JP 63043490 A JP63043490 A JP 63043490A JP 4349088 A JP4349088 A JP 4349088A JP H058326 B2 JPH058326 B2 JP H058326B2
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- pipe
- switching
- branch pipe
- bench lily
- 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 - Lifetime
Links
Classifications
-
- 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
Landscapes
- Combustion Of Fluid Fuel (AREA)
- Regulation And Control Of Combustion (AREA)
- Air Supply (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は各種被熱物を加熱する加熱炉に設けた
切換燃焼装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a switching combustion device installed in a heating furnace for heating various objects to be heated.
（従来技術及びその問題点）
第１図は、従来の切換燃焼装置を示す。同図に
於いて、燃焼用空気は、エアーシリンダによつて
切換弁を機械的に動作させ、燃焼管に装入したバ
ーナ部に交互に切換送風していた。この切換は10
秒ないし数分毎に行なうため、長時間持続的に使
用することに於いて耐久性に問題点がある上、排
気ガスを炉外に排出するためには、高温用の排風
フアンを必要とし装置的にも繁雑さを露呈してい
た。(Prior art and its problems) FIG. 1 shows a conventional switching combustion device. In the figure, combustion air was alternately blown to the burner section inserted into the combustion tube by mechanically operating a switching valve using an air cylinder. This switching is 10
Since this is done every second to several minutes, there are problems with durability when used continuously for long periods of time, and a high-temperature exhaust fan is required to exhaust the exhaust gas outside the furnace. The equipment was also complicated.
（問題点を解決するための手段）
符号１は加熱室であつて、この加熱室１に少く
とも一対の燃焼管２，２′を設ける。該燃焼管２，
２′には分岐管３から分岐した空気供給管４，
４′の一端部を装入する。前記燃焼管２，２′はベ
ンチユリ部５，５′を構成した排気管６，６′と連
通する。前記空気供給管４，４′と前記ベンチユ
リ部５，５′はベンチユリ配管７，７′によつて接
続する。前記分岐管３の径は、それと接続する空
気導入管８の径よりも大きく且つ急拡大して構成
し、前記分岐管３には切換機構９を設け、前記燃
焼管２，２′内には前記加熱室１側にバーナ部１
０，１０′を設けた構成とする。更に前記バーナ
部１０，１０′の上流側の燃焼管２，２′内には蓄
熱器１１，１１′を設けると共に前記切換機構９
の構成は、分岐管３に二ツの切換弁１２，１２′
を対向させたものとする。(Means for Solving the Problems) Reference numeral 1 denotes a heating chamber, and this heating chamber 1 is provided with at least a pair of combustion tubes 2, 2'. the combustion tube 2,
2′ is an air supply pipe 4 branched from the branch pipe 3;
Insert one end of 4'. The combustion pipes 2, 2' communicate with exhaust pipes 6, 6' forming bench lily portions 5, 5'. The air supply pipes 4, 4' and the bench lily sections 5, 5' are connected by bench lily pipes 7, 7'. The diameter of the branch pipe 3 is larger and rapidly expanded than the diameter of the air introduction pipe 8 connected thereto, the branch pipe 3 is provided with a switching mechanism 9, and the combustion pipes 2, 2' are A burner section 1 is provided on the heating chamber 1 side.
0 and 10'. Furthermore, heat accumulators 11 and 11' are provided in the combustion tubes 2 and 2' on the upstream side of the burner sections 10 and 10', and the switching mechanism 9
The configuration is that two switching valves 12, 12' are installed in the branch pipe 3.
Assume that they are facing each other.
（作用）
以上の構成に於いて、燃焼用空気は空気導入管
８から導入されて分岐管３に至る。分岐管３の径
は空気導入管８の径よりも大きく且つ急拡大して
構成されているので、その管壁部分に渦流が生
じ、その渦流は周囲空気を巻き込むので負圧状態
となる。かかる際、切換弁１２が閉の状態で、そ
して切換弁１２′が開の状態であると、切換弁１
２′側に発生する渦流は消去され切換弁１２′側は
負圧とならない。従つて空気の流れは、コアンダ
効果により切換弁１２側に吸引され、実線矢印で
示す流路、即ち空気供給管４側にのみ流れて、燃
焼用空気ノズル１３から燃焼管２内に噴出し、蓄
熱器１１を経てバーナ部１０に至る。この時、燃
料弁１４は開、そして燃料弁１４′は閉とされて
いるので、前記燃焼用空気は、バーナ部１０から
噴出する燃料と混合してバーナ部１０に於いてパ
イロツトバーナ１５により着火されて燃焼を開始
する。燃焼ガスは、加熱室１内に入つて吸熱され
た後、燃焼管２′に入り、蓄熱器１１′を充分に加
熱して燃焼管２′と連通している排気管６′のベン
チユリ部５′に至る。ベンチユリ部５′にはベンチ
ユリ配管７′を介して燃焼用空気の一部が噴出し
ているので、この燃焼用空気によつて、前記排気
ガスは効果的に吸引され排気部１６から排出され
る。前記燃焼用空気ノズル１３′は、実際はその
径が小さいので、排気が空気供給管４′に逆流し
たりして切換機構９に影響を及ぼすようなことは
ない。次に一定時間後、切換機構９の切換弁１２
が開の状態で、切換弁１２′が閉の状態になると、
切換弁１２側に発生する渦流は消去され、燃焼用
空気はコアンダ効果による空気供給管４′側に流
れ、燃焼用空気ノズル１３′から燃焼管２′内に噴
出し、加熱された蓄熱器１１′に於いて予熱され
た後、バーナ部１０′に至る。この時、燃料弁１
４′が開かれ、燃料弁１４が閉じているので、バ
ーナ部１０′から噴出する燃料と前記予熱された
空気は混合して、常時着火状態にあるパイロツト
バーナ１５′により着火され燃焼を開始する。燃
焼ガスは加熱室１で吸熱された後、燃焼管２に入
つて蓄熱器１１を加熱して、ベンチユリ部５に至
る。そこで、前記した通り、ベンチユリ配管７を
介して導入される燃焼用空気の一部によつて排気
ガスが吸引され、排気部１６から排出される。以
上の燃焼の切換を数10秒間隔で又は数分間隔で行
なう。(Function) In the above configuration, combustion air is introduced from the air introduction pipe 8 and reaches the branch pipe 3. Since the diameter of the branch pipe 3 is larger than the diameter of the air introduction pipe 8 and is configured to expand rapidly, a vortex is generated in the pipe wall portion, and the vortex draws in the surrounding air, resulting in a negative pressure state. In this case, if the switching valve 12 is in the closed state and the switching valve 12' is in the open state, the switching valve 1
The vortex generated on the 2' side is eliminated, and negative pressure does not occur on the switching valve 12' side. Therefore, the air flow is sucked toward the switching valve 12 side due to the Coanda effect, flows only into the flow path indicated by the solid arrow, that is, the air supply pipe 4 side, and is ejected from the combustion air nozzle 13 into the combustion pipe 2. It reaches the burner section 10 via the heat storage device 11. At this time, the fuel valve 14 is open and the fuel valve 14' is closed, so the combustion air mixes with the fuel jetted out from the burner section 10 and is ignited by the pilot burner 15 in the burner section 10. and start burning. After the combustion gas enters the heating chamber 1 and absorbs heat, it enters the combustion pipe 2', sufficiently heats the heat storage device 11', and then passes through the bench lily portion 5 of the exhaust pipe 6', which communicates with the combustion pipe 2'. ′. Since a part of the combustion air is blown out to the bench lily section 5' via the bench lily piping 7', the exhaust gas is effectively sucked in by this combustion air and discharged from the exhaust section 16. . Since the combustion air nozzle 13' actually has a small diameter, the exhaust gas will not flow back into the air supply pipe 4' and affect the switching mechanism 9. Next, after a certain period of time, the switching valve 12 of the switching mechanism 9
When the switching valve 12' is in the closed state while the switch is in the open state,
The vortex generated on the switching valve 12 side is eliminated, and the combustion air flows to the air supply pipe 4' side due to the Coanda effect, is ejected from the combustion air nozzle 13' into the combustion pipe 2', and is heated in the heat storage device 11. After being preheated in ', it reaches the burner section 10'. At this time, fuel valve 1
4' is opened and the fuel valve 14 is closed, the fuel ejected from the burner section 10' and the preheated air mix, and are ignited by the pilot burner 15', which is always in the ignition state, to start combustion. . After the combustion gas absorbs heat in the heating chamber 1, it enters the combustion pipe 2, heats the heat storage device 11, and reaches the bench lily portion 5. Therefore, as described above, the exhaust gas is sucked by a portion of the combustion air introduced through the bench lily pipe 7 and is discharged from the exhaust section 16. The above combustion switching is performed at intervals of several tens of seconds or at intervals of several minutes.
（発明の効果）
本発明は以上の通り、コアンダ効果を利用した
独特の構成により、切換燃焼を行なうので、機械
的可動部分がなく、従つて耐久性に優れる利点が
あり、更に燃焼用空気の一部を利用してベンチユ
リ吸引部を構成し、排気を吸引するようにしたの
で、高温用排風フアンを使用しないですみランニ
ングコストも低減できる効果がある。(Effects of the Invention) As described above, the present invention performs switching combustion using a unique configuration that utilizes the Coanda effect, so there are no mechanically moving parts, which has the advantage of excellent durability. Since a part of the bench lily is used to form a suction section to suck in the exhaust gas, there is no need to use a high-temperature exhaust fan, which has the effect of reducing running costs.
第１図は従来装置の説明図、第２図は本発明の
模式的説明図である。
符号１……加熱室、２，２′……燃焼管、３…
…分岐管、４，４′……空気供給管、５，５′……
ベンチユリ部、６，６′……排気管、７，７′……
ベンチユリ配管、８……空気導入管、９……切換
機構、１０，１０′……バーナ部、１１，１１′…
…蓄熱器、１２，１２′……切換弁、１３，１
３′……燃焼用空気ノズル、１４，１４′……燃料
弁、１５，１５′……パイロツトバーナ、１６…
…排気部。
FIG. 1 is an explanatory diagram of a conventional device, and FIG. 2 is a schematic explanatory diagram of the present invention. Code 1...heating chamber, 2, 2'...combustion tube, 3...
...Branch pipe, 4,4'...Air supply pipe, 5,5'...
Bench lily part, 6, 6'... Exhaust pipe, 7, 7'...
Bench lily piping, 8... Air introduction pipe, 9... Switching mechanism, 10, 10'... Burner section, 11, 11'...
...Regenerator, 12,12'...Switching valve, 13,1
3'... Combustion air nozzle, 14, 14'... Fuel valve, 15, 15'... Pilot burner, 16...
...Exhaust section.
Claims (1)
焼管には分岐管から分岐した空気供給管の一端部
を装入すると共に前記燃焼管はベンチユリ部を構
成した排気管と連通し、前記空気供給管と前記ベ
ンチユリ部はベンチユリ配管によつて接続し、前
記分岐管の径は、それと接続する空気導入管の径
よりも大きく、且つ急拡大して構成し、前記分岐
管には切換機構を設け、前記燃焼管内には、前記
加熱室側にバーナ部を設けたことを特徴とする切
換燃焼装置。 ２ 前記燃焼管内に設けたバーナ部の上流側には
蓄熱器を装入した特許請求の範囲第１項記載の切
換燃焼装置。 ３ 前記切換機構は分岐管に二ツの切換弁を対向
させて構成した特許請求の範囲第１項記載の切換
燃焼装置。[Scope of Claims] 1. At least a pair of combustion tubes are provided in the heating chamber, one end of an air supply pipe branched from a branch pipe is inserted into the combustion tube, and the combustion tube is connected to an exhaust gas constituting a bench lily portion. The air supply pipe and the bench lily portion are connected to each other by a bench lily pipe, and the diameter of the branch pipe is larger than the diameter of the air introduction pipe connected thereto, and the branch pipe is configured to rapidly expand. A switching combustion device characterized in that a switching mechanism is provided in the branch pipe, and a burner portion is provided in the combustion tube on the side of the heating chamber. 2. The switching combustion device according to claim 1, wherein a heat storage device is installed on the upstream side of the burner section provided in the combustion tube. 3. The switching combustion device according to claim 1, wherein the switching mechanism includes two switching valves facing each other in a branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63043490A JPH01219411A (en) | 1988-02-26 | 1988-02-26 | Switching burning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63043490A JPH01219411A (en) | 1988-02-26 | 1988-02-26 | Switching burning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01219411A JPH01219411A (en) | 1989-09-01 |
| JPH058326B2 true JPH058326B2 (en) | 1993-02-01 |
Family
ID=12665157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63043490A Granted JPH01219411A (en) | 1988-02-26 | 1988-02-26 | Switching burning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01219411A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3883885B2 (en) * | 2002-03-04 | 2007-02-21 | 中外炉工業株式会社 | Single-ended regenerative radiant tube burner device and combustion method thereof |
| US8171732B2 (en) * | 2006-09-08 | 2012-05-08 | General Electric Company | Turbocharger for a vehicle with a coanda device |
| JP2012189241A (en) * | 2011-03-09 | 2012-10-04 | Niimi Sangyo Kk | Heat storage type burner furnace |
-
1988
- 1988-02-26 JP JP63043490A patent/JPH01219411A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01219411A (en) | 1989-09-01 |
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