JPS599416A - Pulse combustion device - Google Patents

Pulse combustion device

Info

Publication number
JPS599416A
JPS599416A JP12002982A JP12002982A JPS599416A JP S599416 A JPS599416 A JP S599416A JP 12002982 A JP12002982 A JP 12002982A JP 12002982 A JP12002982 A JP 12002982A JP S599416 A JPS599416 A JP S599416A
Authority
JP
Japan
Prior art keywords
valve
fixing plate
gas
air
combustion
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.)
Pending
Application number
JP12002982A
Other languages
Japanese (ja)
Inventor
Tatsuo Fujita
龍夫 藤田
Masato Hosaka
正人 保坂
Isao Inui
勲 乾
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP12002982A priority Critical patent/JPS599416A/en
Publication of JPS599416A publication Critical patent/JPS599416A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C15/00Apparatus in which combustion takes place in pulses influenced by acoustic resonance in a gas mass

Abstract

PURPOSE:To obtain a valve means capable of reducing the valve noises and lowering its manufacturing costs, by disposing a valve fixing plate formed with a fluid passing hole and a valve fixed at its root portion to the valve fixing plate and adapted to close the fluid passing hole at its free end portion in one fluid passage formed in a pulse combustion device. CONSTITUTION:By the rising of pressure in a combustion chamber 1 caused after explosion, an air valve 8' closes a fluid passing hole 7a formed in an air valve fixing plate 7 while a gas valve 11' closes a fluid passing hole 10a formed in a gas valve fixing plate 10, so that combustion gas is discharged to the outside from a tail pipe 2. Here, since the fluid passing holes 7a, 10a formed in the air valve fixing plate 7 and the gas valve fixing plate 10 are closed respectively by the resilient valves 8', 11' gradually from their fixed root portion toward the free end part, the mass of the valves coming into contact with the plates 7, 10 per unit time is reduced, so that the shock caused at the time can be alleviated and the valve noises can be reduced resultantly. Further, since a back plate requiring high accuracy in maching the same can be omitted, it is enabled to lower the manufacturing costs.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はパルス燃焼器に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to a pulse combustor.

従来例の構成とその問題点 パルス燃焼器は、元来、高負荷燃焼特性及び優2 ペー
ジ れた熱伝達特性を有しており、高効率の暖房、給湯機器
の実現にも適している。また、高負荷燃焼であるにもか
かわらず始動時を除けばすべて燃焼用空気を自動吸引し
、かつ、自発着火するため、点火プラグや送風機の駆動
に要するランニングコストを低減できる等という多くの
利点を持っている。しかしながら、燃焼時に発生する過
大な騒音が実用化時の問題点であり、前述した多くの利
点があるにもかかわらず、あまり、製品化されていない
というのが現状であった。パルス燃焼の騒音として、燃
焼音が主要となる排気口からの音、給気口からの音及び
バルブ作動透過音の王台が主体となるが、排気口、給気
口からの音については、マフラーにより消音する手段が
とられるのに対しバルブ作動音に関しては、バルブ装置
を囲い、遮音する手段がとられているが十分な効果が得
られていない。この原因として、バルブ作動音の主体が
比較的低周波音であり、低周波成分の音は遮音しにくい
ことが挙げられる。このために、バルブ装置部を大きな
空間を介し、板厚の厚い壁で囲う    ゛3ページ 手段もあるが、コスト高になってしまうという問題があ
った。次に、従来のパルス燃焼器の基本構成を第1図に
て説明する。図に示す如く、パルス燃焼器は燃焼室1.
ディル84121点火プラグ3、燃焼用始動送風機4.
ガスバイブロ、給気バイブロ、空気バルブ固定板7.空
気バルブ8.空気側バンクプレート9.ガスバルブ固定
板10゜ガスバルブ11.ガス側バンクプレート12か
ら構成されている。
Conventional configurations and their problems Pulse combustors inherently have high-load combustion characteristics and excellent heat transfer characteristics, and are suitable for realizing highly efficient heating and hot water supply equipment. In addition, despite high-load combustion, all combustion air is automatically sucked in except during startup, and ignition occurs spontaneously, which has many advantages such as reducing running costs required to drive spark plugs and blowers. have. However, the excessive noise generated during combustion is a problem when put into practical use, and despite the many advantages mentioned above, the current situation is that not many products have been commercialized. Pulse combustion noise consists mainly of combustion noise from the exhaust port, sound from the air supply port, and sound transmitted through valve operation, but the noise from the exhaust port and air supply port is While mufflers are used to muffle the sound, measures have been taken to block valve operation noise by enclosing the valve device, but these measures have not been sufficiently effective. The reason for this is that the main component of valve operation noise is relatively low-frequency sound, and it is difficult to isolate low-frequency component sounds. For this purpose, there is a method of enclosing the valve device section with a thick wall through a large space, but this method has the problem of high cost. Next, the basic configuration of a conventional pulse combustor will be explained with reference to FIG. As shown in the figure, the pulse combustor has a combustion chamber 1.
Dill 84121 spark plug 3, combustion starting blower 4.
Gas vibro, air supply vibro, air valve fixing plate7. Air valve8. Air side bank plate9. Gas valve fixing plate 10° Gas valve 11. It is composed of a gas side bank plate 12.

次に、従来のパルス燃焼器の作動を説明する。Next, the operation of a conventional pulse combustor will be explained.

まず1、始動に際しては、点火プラグ3.燃焼用始動送
風機4の駆動を必要とするが、一度、パルス燃焼を行え
ば、燃焼室1内に負圧を発生し、燃焼用空気については
、給電バイブロ、空気バルブ固定板7.空気バルブ8.
空気側バックプレート9を介し、また、ガスについては
、ガスパイプ5゜ガスバルブ固定板10.ガスバルブ1
1.ガス側バンクプレート12を介して、燃焼室1内に
自動吸引し、さらに、自発着火を行う。そして、この際
、空気側バルブ8が空気側バンク・′プレート9に、ま
た、ガスバルブ11がガス側バンクプレート12に対し
、高速で衝突するため音を発生する。
First of all, when starting, please use the spark plug 3. Although it is necessary to drive the combustion starting blower 4, once pulse combustion is performed, a negative pressure is generated in the combustion chamber 1, and the combustion air is supplied to the power supply vibro, the air valve fixing plate 7. Air valve8.
For gas, the gas pipe 5° and the gas valve fixing plate 10 are connected via the air side back plate 9. gas valve 1
1. Gas is automatically drawn into the combustion chamber 1 via the gas side bank plate 12, and further, spontaneous ignition is performed. At this time, the air-side valve 8 collides with the air-side bank plate 9 and the gas valve 11 collides with the gas-side bank plate 12 at high speed, producing sound.

そして、バルブ構造的にも流体(燃焼用空気等)の流れ
がかなりせん断を受け、乱流音をも発生していた。次に
、爆発後、燃焼室1内の圧力上昇により、空気バルブ8
は空気バルブ固定板子に向かい、またガスバルブ11は
ガスバルブ固定板12に向かって移動し、空気穴、ガス
穴をふさぎ、燃焼ガスがテイルパイプ2から外部に排気
され、有効に負圧を発生し、燃焼を継続することになる
Furthermore, due to the valve structure, the flow of fluid (combustion air, etc.) was subjected to considerable shearing, and turbulence noise was also generated. Next, after the explosion, due to the pressure increase in the combustion chamber 1, the air valve 8
moves towards the air valve fixing plate, and the gas valve 11 moves towards the gas valve fixing plate 12 to close the air hole and the gas hole, and the combustion gas is exhausted from the tail pipe 2 to the outside, effectively generating negative pressure. The combustion will continue.

このIHcも空気バルブ8.ガスバルブ11の大きな衝
突音が発生するわけである。また空気ノ<ルブ8、ガス
バルブ11が高速で往復運動を行うため空気側バックプ
レート9.ガス側バンクプレート12に加工精度を要求
され、コスト高になったりバルブの動き自体、均一々運
動ができずに燃焼面でも支障をきだすことがあった。
This IHc also has air valve 8. This is why a loud collision sound of the gas valve 11 is generated. Also, since the air valve 8 and the gas valve 11 reciprocate at high speed, the air side back plate 9. Machining precision is required for the gas side bank plate 12, leading to high costs and the valve movement itself not being able to move uniformly, which may cause problems in terms of combustion.

発明の目的 本発明は従来の問題点に鑑み、バルブ騒音が小さく低コ
ストのバルブ装置を有したパルス燃焼器6ページ を提供することを目的とするものである。
OBJECTS OF THE INVENTION In view of the conventional problems, an object of the present invention is to provide a pulse combustor having a low-cost valve device with low valve noise.

発明の構成 そして上記目的を達成するために本発明では燃料ガスと
燃焼用空気との少なくとも一方の流路に、流体通過穴を
有するバルブ固定板と、根元がバルブ固定板に固定され
、自由端部により前記流体通過穴を開閉するバルブとを
設けたものである。
Structure of the Invention In order to achieve the above object, the present invention includes a valve fixing plate having a fluid passage hole in at least one of the flow paths for fuel gas and combustion air, a base fixed to the valve fixing plate, and a free end. A valve for opening and closing the fluid passage hole is provided.

実施例の説明 以下図面を用いて、具体的説明を行う。Description of examples A specific explanation will be given below using the drawings.

第2図は本発明のパルス燃焼器の第1実施例を示すもの
である。パルス燃焼器は、燃焼室1.ディルパイプ2.
点火プラグ3.燃焼用始動送風機4゜ガスパイプ5.給
気バイブロ、空気バルブ固定板7、空気バルブ8.空気
バルブ押え14.ガスバルブ固定板101ガスバルブ1
1乙ガスパルプ押え15から構成されている。また、前
記空気バルブ8′、ガスバルブ11は柔軟性に富む材質
が用いられ、各々の自由端部で流体通過穴71L、10
1L9開閉が自在にできるようにしている。
FIG. 2 shows a first embodiment of the pulse combustor of the present invention. A pulse combustor has a combustion chamber 1. Dill pipe 2.
Spark plug 3. Combustion starting blower 4° gas pipe 5. Air supply vibro, air valve fixing plate 7, air valve 8. Air valve holder 14. Gas valve fixing plate 101 gas valve 1
1 Consists of a gas pulp presser 15. Further, the air valve 8' and the gas valve 11 are made of a highly flexible material, and have fluid passage holes 71L and 10 at their respective free ends.
1L9 can be opened and closed freely.

次に本実施例の作動を説明する。始動時のみは、6ペー
ジ 点火プラグ3.燃焼用始動送風機4の駆動を必要とする
が、一度パルス燃焼を行えば、従来例で説明した場合と
同様の燃焼過程をとる。この際第3図aに示す如く、空
気側バンクプレート9.ガス側バンクプレート12を設
けていないだめ、従来のように空気バルブ8が空気側バ
ックプレート9に、また、力゛スバルブ11が、ガス側
バンクプレート12に衝突し、音を発生することはない
。さらにバルブ構造的にも流体(燃焼用空気13等)の
流れが従来のような、せん断を受けることもないため、
乱流音をも抑制することができる。次に爆発後燃焼室1
内の圧力上昇により、第3図すの如く、空気バルブ8は
空気バルブ固定板7の流体通過穴7aを、また、ガスバ
ルブ11はガスバルブ固定板1oの流体通過穴10aを
各々ふさぎ、燃焼ガスがテイルパイプ2から外部に排気
される。
Next, the operation of this embodiment will be explained. For starting only, use the spark plug 3 on page 6. Although it is necessary to drive the combustion starter blower 4, once pulse combustion is performed, the combustion process is similar to that described in the conventional example. At this time, as shown in FIG. 3a, the air side bank plate 9. Unless the gas-side bank plate 12 is provided, the air valve 8 will not collide with the air-side back plate 9 and the force valve 11 will not collide with the gas-side bank plate 12, which would generate noise, as in the conventional case. . Furthermore, due to the valve structure, the flow of fluid (combustion air 13, etc.) is not subjected to shearing, unlike in conventional valves.
Turbulent noise can also be suppressed. Next, after the explosion combustion chamber 1
Due to the increase in internal pressure, the air valve 8 closes the fluid passage hole 7a of the air valve fixing plate 7, and the gas valve 11 closes the fluid passage hole 10a of the gas valve fixing plate 1o, as shown in FIG. It is exhausted from the tail pipe 2 to the outside.

この過程でも、本実施例の場合は、従来のようにバルブ
全体が、バルブ固定板に瞬間的にぶつかりその穴を閉じ
る方式ではなく柔軟性を持ったバルブ8,11がその根
元の固定部から自由端部に向7ページ かって空気2ガスパルプ固定板7,100流体通過穴7
1L、10aを徐々にふさいでいく方式をとっているた
め単位時間あたりの衝突質量が小さく衝撃も緩和され、
バルブ衝突音は従来より大幅に低減されるものである。
In this process as well, in the case of this embodiment, instead of the conventional method in which the entire valve hits the valve fixing plate momentarily and closes the hole, the flexible valves 8 and 11 are released from the fixed part at the base. Air 2 Gas pulp fixing plate 7,100 Fluid passage hole 7 toward the free end
Since we use a method to gradually close up 1L and 10a, the collision mass per unit time is small and the impact is alleviated.
Valve collision noise is significantly reduced compared to conventional valves.

次に、第4図に本発明のパルス燃焼器の第2実施例を示
す。
Next, FIG. 4 shows a second embodiment of the pulse combustor of the present invention.

第1実施例と異なるのは、空気側緩衝板16が空気バル
ブ8′と空気バルブ固定板70間に、またガス側緩衝板
17が、ガスバルブ11とガスバルブ固定板100間に
、各々設けられていることである。そして、空気側緩衝
板16には、空気バルブ固定板7と同じ流体通過穴16
&が、また、ガス側緩衝板17にはガスバルブ固定板1
0と同じ流体通過穴17iLがあけられている。
The difference from the first embodiment is that an air side buffer plate 16 is provided between the air valve 8' and the air valve fixing plate 70, and a gas side buffer plate 17 is provided between the gas valve 11 and the gas valve fixing plate 100. It is that you are. The air side buffer plate 16 has the same fluid passage holes 16 as the air valve fixing plate 7.
In addition, the gas valve fixing plate 1 is attached to the gas side buffer plate 17.
The same fluid passage hole 17iL as in 0 is provided.

第2実施例の場合、空気側緩衝板16.ガス側緩衝板1
7が設けられていることにより、空気バルブ8′が空気
パルプ固定板7に、またガスバルブ11′がガスパルプ
固定板10に衝突する際に各々緩衝板16.17を介し
て、徐々に衝突するのでバルブ音をさらに低減し、また
バルブの寿命も伸ばずことができるものである。
In the case of the second embodiment, the air side buffer plate 16. Gas side buffer plate 1
7, when the air valve 8' collides with the air pulp fixing plate 7 and the gas valve 11' collides with the gas pulp fixing plate 10, they collide gradually through the buffer plates 16 and 17, respectively. This further reduces valve noise and also does not extend the life of the valve.

以上第1実施例、第2実施例について説明を行ったが、
これらにおいて、ガス側への適用は必ずしも必要ではな
く、空気側に対する適用だけでも効果がある。
Although the first embodiment and the second embodiment have been explained above,
In these cases, application to the gas side is not necessarily necessary, and application only to the air side is effective.

発明の効果 本発明は、バルブ構成としてバンクプレートを不要とす
ることにより、バルブがバンクグレートに衝突する音を
除去でき、かつ、バルブがバルブ固定板の流体通過穴を
徐々にふさぐようにしているため、バルブがバルブ固定
板に衝突する音をも減音するものである。さらに、緩衝
板を設けることにより、バルブがバルブ固定板に衝突す
る音をより効果的に減音することも可能となる。また、
本発明のバルブ構成ではバルブの寿命を伸ばすことがで
きるし、従来、加工精度を必要としたバンクプレートを
除去できるため、生産コスト的にも有利である。そして
、流体の流れに対するせん断を抑えられるので、流体的
乱流音を減音できる。
Effects of the Invention The present invention makes it possible to eliminate the sound of the valve colliding with the bank plate by eliminating the need for a bank plate in the valve structure, and also allows the valve to gradually close the fluid passage hole of the valve fixing plate. Therefore, the sound of the valve colliding with the valve fixing plate is also reduced. Furthermore, by providing a buffer plate, it is also possible to more effectively reduce the sound of the valve colliding with the valve fixing plate. Also,
The valve structure of the present invention can extend the life of the valve, and is also advantageous in terms of production costs because the bank plate, which conventionally required precision machining, can be removed. Furthermore, since shearing of the fluid flow can be suppressed, fluid turbulence noise can be reduced.

さらに、従来のようにバルブの動きがバックプレ9ベー
ジ 一ト等により阻害されることなく円滑な運動を行うため
、燃焼面での信頼性をも向上するものである。以上のよ
うに、本発明のパルス燃焼器では、従来に比してバルブ
作動音を低コストで、かつ、大幅に低減できる効果を有
している。
Furthermore, since the valve movement is not hindered by back pressure and the like as in the prior art, and the valve moves smoothly, reliability in terms of combustion is also improved. As described above, the pulse combustor of the present invention has the effect of significantly reducing valve operation noise at a lower cost than the conventional one.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来のパルス燃焼器の軸断面図、第2図、第4
図は本発明のパルス燃焼器の第1°実施例、第2実施例
を示す軸断面図、第3図a、bは第1実施例の作動を示
す断面図である。 11・…燃焼室、2・・・…テイルパイプ、3・・l!
・9点火プラグ、4・・・・・・燃焼用始動送風機、5
・・・・・・力゛スパイプ、6・・・”1ftf気パイ
プ、8′・・・甲空気バルブ、9・・・・・・空気側バ
ックプレート、10・・・9・・ガスパルプ固定板、1
1′・・印・ガスバルブ、12・・・・・・ガス側バッ
クプレート、1cI・・・・・・燃焼用空気、14・・
・・・・空気バルブ押え、16・・・・・・ガスパルプ
押え、16・・・・・・空気側緩衝板、17・・・・・
・ガス側緩衝板。
Figure 1 is an axial sectional view of a conventional pulse combustor, Figure 2, Figure 4.
The figures are axial sectional views showing the first and second embodiments of the pulse combustor of the present invention, and FIGS. 3a and 3b are sectional views showing the operation of the first embodiment. 11... Combustion chamber, 2... Tail pipe, 3...l!
・9 Spark plug, 4... Start blower for combustion, 5
... Force pipe, 6...1ftf air pipe, 8'... Upper air valve, 9... Air side back plate, 10... 9... Gas pulp fixing plate ,1
1'...mark gas valve, 12...gas side back plate, 1cI...combustion air, 14...
...Air valve holder, 16...Gas pulp holder, 16...Air side buffer plate, 17...
・Gas side buffer plate.

Claims (2)

【特許請求の範囲】[Claims] (1)燃焼室と、この燃焼室の下流側に連結されたテイ
ルパイプとを備え、前記燃焼室の上流側に燃料ガヌ竜燃
焼用空気の各々の流路を設けるとともに、少なくとも一
方の流路に、流体通過穴を持つバルブ固定板と、根元が
前記パルプ固定板に固定され、自由端部により、前記パ
ルプ固定板の流体通過穴を開閉するだめのバルブプとで
構成されたバルブ装置を設けだパル夛゛燃焼器。
(1) A combustion chamber and a tail pipe connected to the downstream side of the combustion chamber, each flow path for fuel combustion air being provided on the upstream side of the combustion chamber, and at least one flow path A valve device comprising a valve fixing plate having a fluid passage hole and a valve plate having a base fixed to the pulp fixing plate and a free end opening and closing the fluid passage hole of the pulp fixing plate. Equipped with a pallet combustor.
(2)純バルブ固定板のバルブの当り面側に、緩衝板を
設けた特許請求の範囲第1項に記載のパルス燃焼器。
(2) The pulse combustor according to claim 1, wherein a buffer plate is provided on the valve contacting surface side of the pure valve fixing plate.
JP12002982A 1982-07-09 1982-07-09 Pulse combustion device Pending JPS599416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12002982A JPS599416A (en) 1982-07-09 1982-07-09 Pulse combustion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12002982A JPS599416A (en) 1982-07-09 1982-07-09 Pulse combustion device

Publications (1)

Publication Number Publication Date
JPS599416A true JPS599416A (en) 1984-01-18

Family

ID=14776141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12002982A Pending JPS599416A (en) 1982-07-09 1982-07-09 Pulse combustion device

Country Status (1)

Country Link
JP (1) JPS599416A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60243405A (en) * 1984-05-16 1985-12-03 Paloma Ind Ltd Pulse combustion apparatus
US4951706A (en) * 1989-05-26 1990-08-28 Fulton Thermatec Corporation Flapper check valve
JP2009533649A (en) * 2006-04-17 2009-09-17 サウンドブラスト テクノロジーズ エルエルシー System and method for igniting a gaseous or dispersed fuel-oxidant mixture

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4846929A (en) * 1971-10-13 1973-07-04
JPS4829404B1 (en) * 1967-10-07 1973-09-10
JPS52125808A (en) * 1976-04-13 1977-10-22 Matsushita Electric Ind Co Ltd Valve system of compressor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4829404B1 (en) * 1967-10-07 1973-09-10
JPS4846929A (en) * 1971-10-13 1973-07-04
JPS52125808A (en) * 1976-04-13 1977-10-22 Matsushita Electric Ind Co Ltd Valve system of compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60243405A (en) * 1984-05-16 1985-12-03 Paloma Ind Ltd Pulse combustion apparatus
JPH0518007B2 (en) * 1984-05-16 1993-03-10 Paloma Kogyo Kk
US4951706A (en) * 1989-05-26 1990-08-28 Fulton Thermatec Corporation Flapper check valve
JP2009533649A (en) * 2006-04-17 2009-09-17 サウンドブラスト テクノロジーズ エルエルシー System and method for igniting a gaseous or dispersed fuel-oxidant mixture

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