JPH01219411A - Switching burning device - Google Patents
Switching burning deviceInfo
- Publication number
- JPH01219411A JPH01219411A JP63043490A JP4349088A JPH01219411A JP H01219411 A JPH01219411 A JP H01219411A JP 63043490 A JP63043490 A JP 63043490A JP 4349088 A JP4349088 A JP 4349088A JP H01219411 A JPH01219411 A JP H01219411A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- combustion
- air
- venturi
- branch pipe
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005338 heat storage Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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)
Abstract
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って切換弁を機械的
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
用の排風ファ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.
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 done every 10 seconds to several minutes, so there is a problem with durability when used continuously for a long time. It required a fan and was complicated in terms of equipment.
（問題点を解決するための手段）
符号ｌは加熱室であって、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′はベンチュリ部５．５′を構成
した排気管６．６′と連通ずる。前記空気供給管４，４
′と前記ベンチュリ部５，５′はベンチュリ配管７．７
′によって接続する。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ｌ側にバーナ部１０．１０’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 one pair of combustion tubes 2.2'. One end of an air supply pipe 4.4' branched from the branch pipe 3 is inserted into the combustion pipe 2.2'. The combustion pipe 2.2' communicates with an exhaust pipe 6.6' which constitutes a venturi section 5.5'. The air supply pipes 4, 4
' and the venturi parts 5, 5' are venturi piping 7.7
Connect by ′. The diameter of the branch pipe 3 is larger and rapidly expanded than the diameter of the air introduction pipe 8 connected thereto, and the branch pipe 3 is provided with a switching mechanism 9, and the combustion pipe 2
．． A burner section 10.10' is provided inside the heating chamber 2' on the side of the heating chamber l. Further, a heat storage 11.11' is provided in the combustion pipe 2.2' on the upstream side of the burner section 10.10', and the switching mechanism 9 has two switching valves 12.12 in the branch pipe 3. ' 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１２′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。従って空気の流れは、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１
０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ｌＯに於いて
バイロフトバーナ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内に入って吸熱された後、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′のベンチュリ部５′に至る
。ベンチエリ部５′にはベンチュリ配管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
よって、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ｌ ３’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。(Function) In the above configuration, combustion air is introduced from the air introduction pipe 8 and reaches the branch pipe 3. The diameter of the branch pipe 3 is the same as that of the air introduction pipe 8.
Because it is larger and rapidly expanding than the diameter of
A vortex is generated on the tube wall, and the vortex draws in the surrounding air, creating a negative pressure state. At this time, if the switching valve 12 is closed and the switching valve 12' is open, the vortex generated on the switching valve 12' side is eliminated and no negative pressure is created 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 to the flow path indicated by the solid line arrow, that is, the air supply pipe 4 side, and passes through the combustion air nozzle 13.
It is ejected into the combustion tube 2, passes through the heat storage device 11, and reaches the burner section 1.
It reaches 0. At this time, the fuel valve 14 is open, and the fuel valve 14
' is closed, the combustion air mixes with the fuel ejected from the burner section 10 and is ignited by the viroft burner 15 in the burner section 10 to start combustion. 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 burns the combustion pipe 2.
to the venturi portion 5' of the exhaust pipe 6', which communicates with the exhaust pipe 6'. Since a part of the combustion air is blown into the venturi section 5' via the venturi pipe 7', the exhaust gas is effectively sucked in by this combustion air and discharged from the exhaust section 16. Since the combustion air nozzle l3' actually has a small diameter, the exhaust gas will not flow back into the air supply pipe 4' and affect the switching mechanism 9.
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
より空気供給管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ｌＯ′に至る。この時
、燃料弁１４′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ットバーナ
１５’により着火され燃焼を開始する。Next, after a certain period of time, when the switching valve 12 of the switching mechanism 9 is in the open state and the switching valve 12' is in the closed state, the vortex generated on the switching valve 12 side is eliminated, and the combustion air is changed due to the Coanda effect. Flows to the air supply pipe 4' side, and the combustion air nozzle 13
'The heated heat storage device 11' is ejected into the combustion pipe 2'.
After being preheated in , it reaches burner section lO'. At this time, since the fuel valve 14' is opened and the fuel valve 14 is closed, the fuel jetted from the burner section 10' and the preheated air are mixed and ignited by the pilot burner 15' which is always in the ignition state. and starts burning.
燃焼ガスは加熱室ｌで吸熱された後、燃焼管２に入って
蓄熱器ｌｌを加熱して、ベンチュリ部５に至る。そこモ
、前記した通り、ベンチエリ配管７を介して導入される
燃焼用空気の一部によって排気ガスが吸引され、排気部
１６から排出される。After the combustion gas absorbs heat in the heating chamber 1, it enters the combustion tube 2, heats the heat storage device 11, and reaches the venturi section 5. There, as described above, exhaust gas is sucked in by a portion of the combustion air introduced through the bench pipe 7 and is discharged from the exhaust section 16.
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。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、従っ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エリ吸引部を構成し、排気を吸
引するようにしたので、高温用排風ファンを使用しない
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 with a unique configuration that utilizes the Coanda effect, so there are no mechanically moving parts, so it has the advantage of excellent durability. Since the bench area suction section is configured using the ventilator 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図は本発明の詳細な説
明図である。
符号ｌ・・・加熱室、２，２′・・・燃焼管、３・・・
分岐管、４．４′・・・空気供給管、５．５′・・・ベ
ンチエリ部、６．６’−・・排気管、７．７′・・・ベ
ンチエリ配管、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、１３．１３’・・・
燃焼用空気ノズル、１４．１４’・・・燃料弁、１５．
１５’・・・バイロフトバーナ、１６・・・排気部。FIG. 1 is an explanatory diagram of a conventional device, and FIG. 2 is a detailed explanatory diagram of the present invention. Symbol l...heating chamber, 2,2'...combustion tube, 3...
Branch pipe, 4.4'... Air supply pipe, 5.5'... Bench area, 6.6'-... Exhaust pipe, 7.7'... Bench area piping, 8... Air introduction Pipe, 9...Switching mechanism, 10°10'...Burner section, 11.11'--Regenerator, 12°12'...Switching valve, 13.13'...
Combustion air nozzle, 14.14'... fuel valve, 15.
15'...Biloft burner, 16...Exhaust section.
Claims (3)
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ュ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ュリ部はベンチュリ
配管によって接続し、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(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 communicated with an exhaust pipe forming a venturi section. , the air supply pipe and the venturi section are connected by a venturi pipe, 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 expand rapidly, and the branch pipe is provided with a switching mechanism. is provided, and in the combustion tube,
A switching combustion device characterized in that a burner section is provided on the side of the heating chamber.
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
。(2) The switching combustion device according to claim 1, wherein a heat storage device is installed upstream of the burner section provided in the combustion tube.
て構成した特許請求の範囲第１項記載の切換燃焼装置。(3) The switching combustion device according to claim 1, wherein the switching mechanism is constructed by having 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 true JPH01219411A (en) | 1989-09-01 |
| JPH058326B2 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100880330B1 (en) * | 2002-03-04 | 2009-01-28 | 쥬가이로 고교 가부시키가이샤 | Single end regenerative radiant tube burner 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
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100880330B1 (en) * | 2002-03-04 | 2009-01-28 | 쥬가이로 고교 가부시키가이샤 | Single end regenerative radiant tube burner 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH058326B2 (en) | 1993-02-01 |
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