JP2007212082A - Combustion heater - Google Patents

Combustion heater Download PDF

Info

Publication number
JP2007212082A
JP2007212082A JP2006033645A JP2006033645A JP2007212082A JP 2007212082 A JP2007212082 A JP 2007212082A JP 2006033645 A JP2006033645 A JP 2006033645A JP 2006033645 A JP2006033645 A JP 2006033645A JP 2007212082 A JP2007212082 A JP 2007212082A
Authority
JP
Japan
Prior art keywords
combustion
gas flow
flow path
combustion chamber
main body
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
Application number
JP2006033645A
Other languages
Japanese (ja)
Other versions
JP4494346B2 (en
Inventor
Soichiro Kato
壮一郎 加藤
Kaoru Maruta
薫 丸田
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.)
Tohoku University NUC
IHI Corp
Original Assignee
Tohoku University NUC
IHI Corp
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 Tohoku University NUC, IHI Corp filed Critical Tohoku University NUC
Priority to JP2006033645A priority Critical patent/JP4494346B2/en
Publication of JP2007212082A publication Critical patent/JP2007212082A/en
Application granted granted Critical
Publication of JP4494346B2 publication Critical patent/JP4494346B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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

  • Gas Burners (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combustion heater capable of easily increasing the volume of a combustion chamber, and to provide the combustion heater of a simple structure. <P>SOLUTION: In this combustion heater 10 comprising a combustion chamber 12, an unburned gas flow channel 13 for guiding an unburned gas G1 to the combustion chamber 12, a combustion gas flow channel 14 for guiding a combustion gas G2 from the combustion chamber 12 to the outside of a main body container 11, and a heat transfer wall 18 partitioning the unburned gas flow channel 13 and the combustion gas flow channel 14, and preheating the unburned gas G1 by the heat of the combustion gas G2, in the main body container 11 composed of a pair of flat plates 16, 17 of approximately same shape, disposed approximately in parallel with each other, and an outer peripheral wall 15 surrounding an outer periphery of the pair of flat plates 16, 17, the unburned gas flow channel 13 and the combustion gas flow channel 14 are formed between the pair of flat plates 16, 17 in a state of being overlapped in the direction orthogonal to the pair of flat plates 16, 17. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、燃焼加熱器に関する。   The present invention relates to a combustion heater.

電気ヒータの代替製品として、マイクロコンバスタの開発が進められている。
マイクロコンバスタは、直径が数ｃｍ程度の小型の燃焼加熱器であって、本体容器内に燃焼室と未燃焼ガス流路と燃焼ガス流路とを有する。そして、燃焼ガス流路を流れる燃焼ガスの熱で未燃焼ガス流路を流れる未燃焼ガスを予熱すると共に、未燃焼ガス流路における燃焼室に臨む部位の寸法を通常では火炎が伝播できない消炎距離よりも小さく形成することで、燃焼室において超過エンタルピ燃焼を実現するものである。
マイクロコンバスタとしては、燃焼室を中心にして未燃焼ガス流路と燃焼ガス流路とを渦巻状に配置した、所謂スイスロール型が提案されている。スイスロール型は、未燃焼ガスを十分に予熱することが可能であり、これにより燃焼室での安定した超過エンタルピ燃焼を実現している。
特開２００４−２００８３号公報 特開２００５−７６９７３号公報 Microcombustors are being developed as an alternative to electric heaters.
The micro combustor is a small combustion heater having a diameter of about several centimeters, and has a combustion chamber, an unburned gas passage, and a combustion gas passage in a main body container. And the unburned gas flowing through the unburned gas flow path is preheated by the heat of the combustion gas flowing through the combustion gas flow path, and the extinction distance where the flame cannot normally propagate through the dimensions of the portion facing the combustion chamber in the unburned gas flow path By forming it smaller than this, excess enthalpy combustion is realized in the combustion chamber.
As a micro combustor, a so-called Swiss roll type in which an unburned gas flow path and a combustion gas flow path are arranged in a spiral shape around a combustion chamber has been proposed. The Swiss roll type can sufficiently preheat the unburned gas, thereby realizing stable excess enthalpy combustion in the combustion chamber.
Japanese Patent Laid-Open No. 2004-20083 JP-A-2005-76973

ところで、スイスロール型マイクロコンバスタは、本体容器内の中央部の狭い空間（燃焼室）で未燃焼ガスを燃焼させている。このため、燃焼負荷率（燃焼室内の単位体積あたりの発熱量）が極めて大きくなり、本体容器が局所的に劣化・損傷してしまうという問題がある。
また、流路の形状が複雑（渦巻状）であるために装置コストが高くなってしまうという問題があり、安価な装置の実現が要請されている。 By the way, the Swiss roll type micro combustor burns unburned gas in a narrow space (combustion chamber) in the center of the main body container. For this reason, there is a problem that the combustion load factor (the amount of heat generated per unit volume in the combustion chamber) becomes extremely large, and the main body container is locally degraded and damaged.
Moreover, since the shape of the flow path is complicated (spiral), there is a problem that the cost of the apparatus becomes high, and the realization of an inexpensive apparatus is required.

本発明は、上述した事情に鑑みてなされたもので、燃焼室の体積を容易に増大させることで燃焼負荷率を抑えることが可能な燃焼加熱器を提案することを目的とする。また、簡単な構造の燃焼加熱器を提案することを目的とする。   This invention is made | formed in view of the situation mentioned above, and it aims at proposing the combustion heater which can suppress a combustion load factor by increasing the volume of a combustion chamber easily. Another object of the present invention is to propose a combustion heater having a simple structure.

本発明に係る燃焼加熱器では、上記課題を解決するために以下の手段を採用した。
本発明は、略平行に配置された略同一形状の一対の平板及び該一対の平板の外周を取り囲む外周壁とで構成される本体容器内に、燃焼室と、前記燃焼室に未燃焼ガスを導く未燃焼ガス流路と、前記燃焼室からの燃焼ガスを前記本体容器外に導く燃焼ガス流路と、前記未燃焼ガス流路と前記燃焼ガス流路とを隔てると共に前記燃焼ガスの熱で前記未燃焼ガスを予熱する伝熱壁と、を備える燃焼加熱器において、前記一対の平板の間に、前記未燃焼ガス流路と前記燃焼ガス流路とを、前記一対の平板に直交する方向に重ねて配置するようにした。
この発明によれば、複雑な流路を形成する必要ことなく、熱交換が可能な流路を有する装置を安価に実現することができる。 The combustion heater according to the present invention employs the following means in order to solve the above problems.
According to the present invention, a combustion chamber and unburned gas are introduced into the combustion chamber in a main body container composed of a pair of flat plates having substantially the same shape arranged in parallel and an outer peripheral wall surrounding the outer periphery of the pair of flat plates. The unburned gas flow path for guiding, the combustion gas flow path for guiding the combustion gas from the combustion chamber to the outside of the main body container, the unburned gas flow path and the combustion gas flow path are separated, and the heat of the combustion gas is used. In a combustion heater comprising a heat transfer wall for preheating the unburned gas, the unburned gas flow path and the combustion gas flow path are perpendicular to the pair of flat plates between the pair of flat plates. It was arranged so as to overlap.
According to the present invention, an apparatus having a flow path capable of heat exchange can be realized at low cost without the need to form a complicated flow path.

また、前記伝熱壁が、前記一対の平板よりも小形の平板からなると共に、前記一対の平板からそれぞれ離間して配置されるものでは、平板形の伝熱壁を配置するだけで、未燃焼ガス流路と燃焼ガス流路とを一対の平板に直交する方向に重ねて配置することができる。   Further, in the case where the heat transfer wall is made of a flat plate smaller than the pair of flat plates and is spaced apart from the pair of flat plates, the flat heat transfer wall is simply disposed, and the unheated The gas channel and the combustion gas channel can be arranged so as to overlap each other in a direction perpendicular to the pair of flat plates.

前記本体容器が、前記平板側から見て、略円形に形成されたり、矩形に形成されたりするものでは、被加熱物体の加熱に適した燃焼加熱器を得ることができる。
また、前記外周壁に沿って燃焼室を配置したものでは、燃焼室の体積を増大させることができるので、燃焼負荷率が低くなり、本体容器が局所的に劣化・損傷するという不具合が回避できる。 When the main body container is formed in a substantially circular shape or a rectangular shape when viewed from the flat plate side, a combustion heater suitable for heating an object to be heated can be obtained.
Further, in the case where the combustion chamber is arranged along the outer peripheral wall, the volume of the combustion chamber can be increased, so that the problem that the combustion load factor is lowered and the main body container is locally deteriorated or damaged can be avoided. .

本発明によれば以下の効果を得ることができる。
本体容器内の燃焼室の体積を容易に増大させることができるので、燃焼負荷率を低くすることができる。また、本体容器内に未燃焼ガス流路と燃焼ガス流路とを容易に形成することができ、安価な装置が実現できる。
なお、「未燃焼ガス」とは、燃焼前のガスを意味し、「燃焼ガス」とは、燃焼後のガスを意味する。 According to the present invention, the following effects can be obtained.
Since the volume of the combustion chamber in the main body container can be easily increased, the combustion load factor can be lowered. Further, the unburned gas passage and the combustion gas passage can be easily formed in the main body container, and an inexpensive apparatus can be realized.
“Unburned gas” means a gas before combustion, and “combusted gas” means a gas after combustion.

以下、本発明に係る燃焼加熱器について図面を参照して説明する。
図１は、本発明の実施形態に係る燃焼加熱器１０の構成を示す斜視図及び断面図である。
燃焼加熱器１０は、閉塞された本体容器１１の内部空間で、都市ガス等の燃料ガスと燃焼用酸化剤ガスとしての空気とが予め混合された状態（予混合ガスＧ１）で供給される、所謂予混合タイプの燃焼加熱器である。
燃焼加熱器１０の本体容器１１は、円筒状の外周壁１５の上下を円盤状の上壁１６及び下壁１７（以下、上下壁１６，１７ともいう）で閉塞してなるもので、外周壁１５の高さに対して上壁１６及び下壁１７の直径が大きく形成される。
上下壁１６，１７は、本体容器１１の外表面の大部分を占める。そして、この上下壁１６，１７が予混合ガスＧ１の燃焼によりそれぞれ加熱され、上下壁１６，１７から放出された熱により被加熱物（不図示）を加熱するようになっている。
なお、上下壁１６，１７は、伝熱性が高い材料（例えば、黄銅（真鍮）等）で形成される。また、外周壁１５を上下壁１６，１７と同一の材料とすることで熱を放出する面として用いてもよい。 Hereinafter, a combustion heater according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view and a cross-sectional view showing a configuration of a combustion heater 10 according to an embodiment of the present invention.
The combustion heater 10 is supplied in a state (premixed gas G1) in which fuel gas such as city gas and air as combustion oxidant gas are premixed in the closed internal space of the main body container 11. This is a so-called premix type combustion heater.
The main body container 11 of the combustion heater 10 is formed by closing the upper and lower sides of a cylindrical outer peripheral wall 15 with a disk-shaped upper wall 16 and a lower wall 17 (hereinafter also referred to as upper and lower walls 16, 17). The diameters of the upper wall 16 and the lower wall 17 are larger than the height of 15.
The upper and lower walls 16 and 17 occupy most of the outer surface of the main body container 11. The upper and lower walls 16 and 17 are heated by the combustion of the premixed gas G1, and the object to be heated (not shown) is heated by the heat released from the upper and lower walls 16 and 17.
The upper and lower walls 16 and 17 are made of a material having high heat conductivity (for example, brass (brass)). Moreover, you may use as the surface which discharge | releases heat by making the outer peripheral wall 15 into the same material as the upper and lower walls 16,17.

本体容器１１内には、上下壁１６，１７よりも小さな直径を有する伝熱壁１８が配置される。伝熱壁１８は、外周壁１５、上下壁１６，１７からそれぞれ離間しつつ、上下壁１６，１７に対して略平行に配置されている。なお、伝熱壁１８は、上下壁１６，１７と同様に、伝熱性が高い材料で形成される。
これにより、下壁１７と伝熱壁１８に挟まれた円板形空間が、予混合ガス（未燃焼ガス）Ｇ１を燃焼室１２に供給する予混合ガス流路１３として形成される。
また、上壁１６と伝熱壁１８に挟まれた円板形空間が、燃焼室１２からの燃焼ガスＧ２を外部に排出するための燃焼ガス流路１４として形成される。
更に、外周壁１５、上壁１６、下壁１７及び伝熱壁１８に囲まれた円環形の空間、すなわち外周壁１５に沿った空間が燃焼室１２として形成される。なお、燃焼室１２の一部には、着火装置（不図示）が設けられる。
つまり、図１（ｂ）に示すように、本体容器１１内には、その厚み方向（上壁１６、下壁１７に直交する方向）に、予混合ガス流路１３と燃焼ガス流路１４とが重ねて配置される。 A heat transfer wall 18 having a smaller diameter than the upper and lower walls 16 and 17 is disposed in the main body container 11. The heat transfer wall 18 is disposed substantially parallel to the upper and lower walls 16 and 17 while being separated from the outer peripheral wall 15 and the upper and lower walls 16 and 17, respectively. The heat transfer wall 18 is formed of a material having high heat transfer properties, like the upper and lower walls 16 and 17.
As a result, a disk-shaped space sandwiched between the lower wall 17 and the heat transfer wall 18 is formed as a premixed gas flow path 13 for supplying the premixed gas (unburned gas) G1 to the combustion chamber 12.
A disk-shaped space sandwiched between the upper wall 16 and the heat transfer wall 18 is formed as a combustion gas passage 14 for discharging the combustion gas G2 from the combustion chamber 12 to the outside.
Furthermore, an annular space surrounded by the outer peripheral wall 15, the upper wall 16, the lower wall 17 and the heat transfer wall 18, that is, a space along the outer peripheral wall 15 is formed as the combustion chamber 12. An ignition device (not shown) is provided in a part of the combustion chamber 12.
That is, as shown in FIG. 1B, the premixed gas flow path 13 and the combustion gas flow path 14 are disposed in the main body container 11 in the thickness direction (direction perpendicular to the upper wall 16 and the lower wall 17). Are placed one on top of the other.

また、本体容器１１の下壁１７の中心部には、内側流路３１と外側流路３２とを備えた二重管３０が接続される。
下壁１７の中心部には、外側流路３２の内径と同一径の穴１７ｈが設けられており、この穴１７ｈの外周部分に外側流路３２が接続される。また、伝熱壁１８の中心部には、内側流路３１の内径と同一径の穴１８ｈが設けられており、この穴１８ｈの外周部分に内側流路３１が接続される。
これにより、内側流路３１と燃焼ガス流路１４とが連結され、外側流路３２と予混合ガス流路１３とが連結される。 A double pipe 30 having an inner channel 31 and an outer channel 32 is connected to the center of the lower wall 17 of the main body container 11.
A hole 17h having the same diameter as the inner diameter of the outer channel 32 is provided at the center of the lower wall 17, and the outer channel 32 is connected to the outer peripheral portion of the hole 17h. A hole 18h having the same diameter as the inner diameter of the inner flow path 31 is provided at the center of the heat transfer wall 18, and the inner flow path 31 is connected to the outer peripheral portion of the hole 18h.
Thereby, the inner side flow path 31 and the combustion gas flow path 14 are connected, and the outer side flow path 32 and the premixed gas flow path 13 are connected.

このような構成により、二重管３０の外側流路３２に予混合ガスＧ１を供給すると、予混合ガスＧ１は本体容器１１の中心部から予混合ガス流路１３に流入し、更に外周壁１５に沿って形成された円環形の燃焼室１２に向けて放射状に流れる。
そして、予混合ガスＧ１が燃焼室１２において燃焼することにより、燃焼ガスＧ２が発生する。この燃焼ガスＧ２は、燃焼室１２から燃焼ガス流路１４を介して本体容器１１の中心部に向けて流れ、二重管３０の内側流路３１に流入する。 With such a configuration, when the premixed gas G1 is supplied to the outer flow path 32 of the double pipe 30, the premixed gas G1 flows into the premixed gas flow path 13 from the center of the main body container 11, and further, the outer peripheral wall 15 It flows radially toward the annular combustion chamber 12 formed along the line.
Then, the premixed gas G1 is combusted in the combustion chamber 12 to generate combustion gas G2. The combustion gas G <b> 2 flows from the combustion chamber 12 through the combustion gas channel 14 toward the center of the main body container 11 and flows into the inner channel 31 of the double pipe 30.

この際、燃焼ガスＧ２の熱で予混合ガスＧ１が予熱される。上述したように、伝熱壁１８は伝熱性が高い材料で形成されているため、燃焼ガスＧ２の熱は伝熱壁１８を介して予混合ガスＧ１に伝えられる。特に、燃焼ガス流路１４を流れる燃焼ガスＧ２と予混合ガス流路１３を流れる予混合ガスＧ１とが、伝熱壁１８を挟んで対向流（カウンタフロー）となっているので、燃焼ガスＧ２の熱で予混合ガスＧ１を効率的に予熱することが可能となっている。
このように、予混合ガスＧ１が燃焼室１２に導入される前に十分に予熱されているので、燃焼室１２において安定した燃焼が得られる。 At this time, the premixed gas G1 is preheated by the heat of the combustion gas G2. As described above, since the heat transfer wall 18 is formed of a material having high heat transfer properties, the heat of the combustion gas G2 is transferred to the premixed gas G1 through the heat transfer wall 18. In particular, the combustion gas G2 flowing through the combustion gas flow channel 14 and the premixed gas G1 flowing through the premixed gas flow channel 13 are counterflows (counter flow) with the heat transfer wall 18 interposed therebetween, so the combustion gas G2 It is possible to efficiently preheat the premixed gas G1 with this heat.
Thus, since the premixed gas G1 is sufficiently preheated before being introduced into the combustion chamber 12, stable combustion is obtained in the combustion chamber 12.

更に、燃焼室１２において安定した燃焼を可能とするために、予混合ガス流路１３の断面形状における代表寸法は、火炎を通さない（燃焼反応が伝播されない）程度の消炎距離（消炎等価径を含む）を考慮したものとなっている。
一般に、予混合ガスの消炎距離ｄは、管壁モデルの径の大きさで表されるものであり、式（１）により求められる。
ｄ＝２λ・Ｎｕ１／２／Ｃｐ・ρｕ・Ｓｕ・・・式（１）
式（１）において、ｄは消炎距離、λは熱伝導率、Ｎｕはヌセルト数、Ｃｐは定圧比熱、ρｕは予混合気密度、Ｓｕは燃焼速度である。
予混合ガス流路１３の断面形状の代表寸法は、燃焼室１２に臨む部位の断面形状によって異なる。例えば、流路断面形状が円形状である場合には、代表寸法は円形断面の直径を指し、流路断面形状が円形状以外である場合には、代表寸法は断面の水力相当直径を指す。 Furthermore, in order to enable stable combustion in the combustion chamber 12, the representative dimension in the cross-sectional shape of the premixed gas flow path 13 is a flame extinguishing distance (a flame extinguishing equivalent diameter) that does not allow a flame to pass through (a combustion reaction is not propagated). Including)).
In general, the extinction distance d of the premixed gas is expressed by the size of the diameter of the tube wall model, and is obtained by the equation (1).
d = 2λ · Nu 1/2 / C p · ρ u · S u (1)
In equation (1), d is the flame extinguishing distance, λ is the thermal conductivity, Nu is the Nusselt number, C p is the constant pressure specific heat, ρ u is the premixed gas density, and Su is the combustion rate.
The representative dimension of the cross-sectional shape of the premixed gas flow path 13 varies depending on the cross-sectional shape of the portion facing the combustion chamber 12. For example, when the channel cross-sectional shape is circular, the representative dimension indicates a diameter of a circular cross section, and when the channel cross-sectional shape is other than a circular shape, the representative dimension indicates a hydraulic equivalent diameter of the cross section.

ここで、水力相当直径は、以下の式（２）によって求められる。
水力相当直径Ｄ＝４×流路断面積／ぬれ縁周辺長・・・式（２）
なお、代表寸法を採る部位は、燃焼室１２に臨む部位に限らず、予混合ガス流路１３のうち、本燃焼現象を支配する部位とする。 Here, the hydraulic equivalent diameter is obtained by the following equation (2).
Hydraulic equivalent diameter D = 4 × channel cross-sectional area / wetting edge periphery length (2)
In addition, the site | part which takes a representative dimension is not only the site | part which faces the combustion chamber 12, but the site | part which predominates this combustion phenomenon among the premixed gas flow paths 13.

具体的には、図１（ｂ）に示すように、下壁１７と伝熱壁１８との距離Ｌを消炎距離以下に規定する。これにより、火炎が予混合ガス流路１３内に侵入することがなくなり、燃焼室１２における安定燃焼が実現される。   Specifically, as shown in FIG. 1B, the distance L between the lower wall 17 and the heat transfer wall 18 is defined to be equal to or less than the flame extinguishing distance. As a result, the flame does not enter the premixed gas flow path 13 and stable combustion in the combustion chamber 12 is realized.

予混合ガス流路１３の代表寸法としては、下壁１７と伝熱壁１８との距離には限らない。例えば、図２（ａ）に示すように、伝熱壁１８の下面１８ｂの外周部に円環形の突起部２５を設け、この突起部２５と下壁１７との距離Ｌを代表寸法としてもよい。
また、突起部２５としては円環形に限らず、図２（ｂ）に示すように、伝熱壁１８の下面１８ｂの外周部に複数の突起部２６を所定の間隔を開けて等間隔に配置してもよい。この場合には、突起部２６同士の間隔Ｌが代表寸法となる。 The representative dimension of the premixed gas flow path 13 is not limited to the distance between the lower wall 17 and the heat transfer wall 18. For example, as shown in FIG. 2A, an annular protrusion 25 is provided on the outer periphery of the lower surface 18b of the heat transfer wall 18, and the distance L between the protrusion 25 and the lower wall 17 may be a representative dimension. .
Further, the protrusion 25 is not limited to an annular shape, and a plurality of protrusions 26 are arranged at regular intervals with a predetermined interval on the outer peripheral portion of the lower surface 18b of the heat transfer wall 18 as shown in FIG. 2 (b). May be. In this case, the distance L between the protrusions 26 is the representative dimension.

以上のような構成により、燃焼加熱器１０では、予混合ガスＧ１の燃焼が燃焼室１２において安定して行われる。また、予混合ガスＧ１の流量を調整することにより、燃焼温度の正確な制御が可能となる。   With the above configuration, in the combustion heater 10, the combustion of the premixed gas G <b> 1 is stably performed in the combustion chamber 12. Further, the combustion temperature can be accurately controlled by adjusting the flow rate of the premixed gas G1.

また、本体容器１１内の外周壁１５に沿って燃焼室１２を配置したので、燃焼室１２の体積が増大する。これにより、燃焼負荷率が低くなるので、本体容器１１が局所的に劣化・損傷するという不具合が回避される。
また、燃焼加熱器１０は、本体容器１１内に平板形の伝熱壁１８を配置しているだけなので、予混合ガス流路１３と燃焼ガス流路１４とを容易に形成することができる。これにより、スイスロール型に比べて、安価な装置の実現が可能である。 In addition, since the combustion chamber 12 is disposed along the outer peripheral wall 15 in the main body container 11, the volume of the combustion chamber 12 increases. Thereby, since a combustion load factor becomes low, the malfunction that the main body container 11 deteriorates locally and is damaged is avoided.
Moreover, since the combustion heater 10 only has the flat plate-shaped heat transfer wall 18 in the main body container 11, the premixed gas channel 13 and the combustion gas channel 14 can be easily formed. Thereby, it is possible to realize an inexpensive apparatus as compared with the Swiss roll type.

上述した実施形態において示した各構成部材の諸形状や組み合わせ等は一例であって、本発明の主旨から逸脱しない範囲において設計要求等に基づき種々変更可能である。   Various shapes, combinations, and the like of the constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

例えば、図３に示すように、伝熱壁１８の下面１８ｂに複数の放熱用突起２１を設けてもよい。放熱用突起２１を設けることで、予混合ガスＧ１が伝熱壁１８に触れる面積が増えて、より効率的に予混合ガスＧ１との熱交換が可能となる。   For example, as shown in FIG. 3, a plurality of heat dissipation protrusions 21 may be provided on the lower surface 18 b of the heat transfer wall 18. By providing the heat dissipation projections 21, the area where the premixed gas G1 touches the heat transfer wall 18 increases, and heat exchange with the premixed gas G1 can be performed more efficiently.

また、図４（ａ）に示すように、伝熱壁１８の上面１８ａに複数の吸熱用突起２２を設けてもよい。吸熱用突起２２を設けることで、燃焼ガスＧ２が伝熱壁１８に触れる面積が増えて、より効率的に伝熱壁１８との熱交換が可能となる。
なお、本体容器１１の上壁１６に吸熱用突起を設けることで、より効率的に上壁１６を加熱し、外部への放熱量を増やすようにしてもよい。 Further, as shown in FIG. 4A, a plurality of heat absorption protrusions 22 may be provided on the upper surface 18 a of the heat transfer wall 18. By providing the heat absorption protrusion 22, the area where the combustion gas G <b> 2 touches the heat transfer wall 18 is increased, and heat exchange with the heat transfer wall 18 can be performed more efficiently.
In addition, you may make it heat the upper wall 16 more efficiently by providing the protrusion for heat absorption in the upper wall 16 of the main body container 11, and may increase the thermal radiation amount to the exterior.

また、例えば、図４（ｂ）に示すように、伝熱壁１８の上面１８ａに渦巻形の吸熱用突起２３を設けてもよい。燃焼ガス流路１４の流路長が延びるので、更に効率的に燃焼ガスＧ２と伝熱壁１８との熱交換が可能となる。   Further, for example, as shown in FIG. 4B, a spiral heat absorption projection 23 may be provided on the upper surface 18 a of the heat transfer wall 18. Since the length of the combustion gas channel 14 is extended, heat exchange between the combustion gas G2 and the heat transfer wall 18 can be performed more efficiently.

また、伝熱壁１８の形状としては、円板形に限らず、図５に示すように、星型等に形成してもよい。このような形状とすることで、燃焼室１２の体積を更に増やすことができる。   Further, the shape of the heat transfer wall 18 is not limited to the disk shape, and may be formed in a star shape or the like as shown in FIG. By setting it as such a shape, the volume of the combustion chamber 12 can further be increased.

また、本体容器１１をその厚み方向から見た形状は、円形や楕円形の場合に限らず、三角若しくは四角又はそれ以上の多角形、或いは星型等であってもよい。
例えば、本体容器１１をその厚み方向から見た形状が四角形の場合には、図６（ａ）に示すように、その四辺の全てに燃焼室１２を配置してもよい。また、図６（ｂ）に示すように、対向する二辺にのみ燃焼室１２を配置してもよい。
更に、図６（ｃ）に示すように、特定の一辺にのみ燃焼室１２を配置してもよい。この場合には、予混合ガス流路１３及び燃焼ガス流路１４に連結する二重管３０は本体容器１１の中心部に設ける必要はない。 Further, the shape of the main body container 11 viewed from the thickness direction is not limited to a circular shape or an elliptical shape, and may be a triangular shape, a rectangular shape, a polygonal shape higher than that, or a star shape.
For example, when the shape of the main body container 11 viewed from the thickness direction is a quadrangle, the combustion chambers 12 may be disposed on all four sides as shown in FIG. Moreover, as shown in FIG.6 (b), you may arrange | position the combustion chamber 12 only to two opposing sides.
Furthermore, as shown in FIG. 6C, the combustion chamber 12 may be disposed only on a specific side. In this case, the double pipe 30 connected to the premixed gas flow path 13 and the combustion gas flow path 14 does not need to be provided at the center of the main body container 11.

また、燃料と燃焼用酸化剤を予め混合する「予混合タイプ」を例にして説明したが、燃焼室にて両者が混合して拡散燃焼を行う「拡散タイプ」の燃焼加熱器にも適用できる。   In addition, the “premix type” in which the fuel and the oxidant for combustion are mixed in advance has been described as an example. .

なお、二重管３０の内側流路３１と燃焼ガス流路１４とが連結され、外側流路３２と予混合ガス流路１３とが連結される場合に限らない。すなわち、二重管３０の内側流路３１と予混合ガス流路１３とが連結され、外側流路３２と燃焼ガス流路１４とが連結されてもよい。
また、必ずしも二重管３０を用いる場合に限らず、下壁１７に予混合ガス流路１３に連結するガス供給管を接続し、上壁１６に燃焼ガス流路１４に連結するガス排出管を接続してもよい。 The inner channel 31 and the combustion gas channel 14 of the double pipe 30 are connected, and the outer channel 32 and the premixed gas channel 13 are not connected. That is, the inner flow path 31 and the premixed gas flow path 13 of the double pipe 30 may be connected, and the outer flow path 32 and the combustion gas flow path 14 may be connected.
Further, the gas supply pipe connected to the premixed gas flow path 13 is connected to the lower wall 17 and the gas discharge pipe connected to the combustion gas flow path 14 is connected to the upper wall 16, not necessarily when the double pipe 30 is used. You may connect.

また、図７に示すように、本体容器１１内に、二枚の伝熱壁１８，１９を平行に配置することで、燃焼ガス流路１４ａ、伝熱壁１８、予混合ガス流路１３、伝熱壁１９、燃焼ガス流路１４ｂが、本体容器１１の厚み方向に重ねて配置されるようにしてもよい。このような構成により、上壁１６と下壁１７とが同様に加熱されるので、より均一に外部に熱を放熱することが可能となる。   In addition, as shown in FIG. 7, by arranging two heat transfer walls 18 and 19 in parallel in the main body container 11, the combustion gas flow path 14 a, the heat transfer wall 18, the premixed gas flow path 13, The heat transfer wall 19 and the combustion gas flow path 14 b may be arranged so as to overlap in the thickness direction of the main body container 11. With such a configuration, the upper wall 16 and the lower wall 17 are similarly heated, so that heat can be radiated to the outside more uniformly.

また、燃焼加熱器１０は、外形が数ｃｍ程度の小型のものに限らず、数十ｃｍから数ｍ程度のものであってもよい。   Further, the combustion heater 10 is not limited to a small one having an outer shape of about several centimeters, but may be one having several tens of centimeters to several meters.

本発明の実施形態に係る燃焼加熱器１０を示す斜視図及び断面図である。It is the perspective view and sectional drawing which show the combustion heater 10 which concerns on embodiment of this invention. 伝熱壁１８の下面１８ｂに突起部２５，２６を設けた場合を示す図である。It is a figure which shows the case where the projection parts 25 and 26 are provided in the lower surface 18b of the heat-transfer wall 18. FIG. 伝熱壁１８の下面１８ｂに放熱用突起２１を設けた場合を示す図である。It is a figure which shows the case where the protrusion 21 for thermal radiation is provided in the lower surface 18b of the heat-transfer wall 18. FIG. 伝熱壁１８の上面１８ａに吸熱用突起２２，２３を設けた場合を示す図である。It is a figure which shows the case where the heat absorption protrusions 22 and 23 are provided in the upper surface 18a of the heat transfer wall 18. FIG. 伝熱壁１８の変形例を示す図である。It is a figure which shows the modification of the heat-transfer wall. 本発明の実施形態に係る燃焼加熱器１０の変形例を示す図である。It is a figure which shows the modification of the combustion heater 10 which concerns on embodiment of this invention. 本発明の実施形態に係る燃焼加熱器１０の変形例を示す図である。It is a figure which shows the modification of the combustion heater 10 which concerns on embodiment of this invention.

符号の説明Explanation of symbols

１０…燃焼加熱器
１１…本体容器
１２…燃焼室
１３…予混合ガス流路（未燃焼ガス流路）
１４…燃焼ガス流路
１５…外周壁
１６…上壁（平板）
１７…下壁（平板）
１８，１９…伝熱壁
１８ａ…上面（燃焼ガス流路側の壁面）
１８ｂ…下面（未燃焼ガス流路側の壁面）
２１…放熱用突起
２２，２３…吸熱用突起
２５，２６…突起部
３０…二重管
３１…内側流路（第二流路）
３２…外側流路（第一流路）
Ｇ１…予混合ガス（未燃焼ガス）
Ｇ２…燃焼ガス


DESCRIPTION OF SYMBOLS 10 ... Combustion heater 11 ... Main body container 12 ... Combustion chamber 13 ... Premixed gas flow path (unburned gas flow path)
14 ... Combustion gas flow path 15 ... Outer peripheral wall 16 ... Upper wall (flat plate)
17 ... Lower wall (flat plate)
18, 19 ... Heat transfer wall 18a ... Upper surface (wall surface on the combustion gas flow path side)
18b ... lower surface (wall surface on the unburned gas flow path side)
21 ... Radiation projection 22, 23 ... Endothermic projection 25, 26 ... Projection 30 ... Double pipe 31 ... Inner channel (second channel)
32 ... Outer channel (first channel)
G1 ... Premixed gas (unburned gas)
G2 ... Combustion gas


Claims (5)

略平行に配置された略同一形状の一対の平板及び該一対の平板の外周を取り囲む外周壁とで構成される本体容器内に、燃焼室と、前記燃焼室に未燃焼ガスを導く未燃焼ガス流路と、前記燃焼室からの燃焼ガスを前記本体容器外に導く燃焼ガス流路と、前記未燃焼ガス流路と前記燃焼ガス流路とを隔てると共に前記燃焼ガスの熱で前記未燃焼ガスを予熱する伝熱壁と、を備える燃焼加熱器において、
前記一対の平板の間に、前記未燃焼ガス流路と前記燃焼ガス流路とを、前記一対の平板に直交する方向に重ねて配置することを特徴とする燃焼加熱器。 An unburned gas that guides the unburned gas into the combustion chamber and the combustion chamber in a main body container constituted by a pair of flat plates of substantially the same shape arranged in parallel and an outer peripheral wall surrounding the outer periphery of the pair of flat plates The unburned gas is separated by a flow path, a combustion gas flow path for guiding the combustion gas from the combustion chamber to the outside of the main body container, the unburned gas flow path and the combustion gas flow path, and the heat of the combustion gas. A combustion heater comprising a heat transfer wall for preheating
A combustion heater, wherein the unburned gas flow path and the combustion gas flow path are arranged in a direction perpendicular to the pair of flat plates between the pair of flat plates. 前記伝熱壁は、前記一対の平板よりも小形の平板からなると共に、前記一対の平板からそれぞれ離間して配置されることを特徴とする請求項１に記載の燃焼加熱器。   2. The combustion heater according to claim 1, wherein the heat transfer wall includes a flat plate that is smaller than the pair of flat plates and is spaced apart from the pair of flat plates. 前記本体容器は、前記平板側から見て、略円形に形成されることを特徴とする請求項１又は請求項２に記載の燃焼加熱器。   The combustion heater according to claim 1, wherein the main body container is formed in a substantially circular shape when viewed from the flat plate side. 前記本体容器は、前記平板側から見て、矩形に形成されることを特徴とする請求項１又は請求項２に記載の燃焼加熱器。   The combustion heater according to claim 1 or 2, wherein the main body container is formed in a rectangular shape when viewed from the flat plate side. 前記外周壁に沿って燃焼室を配置したことを特徴とする請求項１から請求項４のうちいずれか一項に記載の燃焼加熱器。






The combustion heater according to any one of claims 1 to 4, wherein a combustion chamber is disposed along the outer peripheral wall.






JP2006033645A 2006-02-10 2006-02-10 Combustion heater Active JP4494346B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006033645A JP4494346B2 (en) 2006-02-10 2006-02-10 Combustion heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006033645A JP4494346B2 (en) 2006-02-10 2006-02-10 Combustion heater

Publications (2)

Publication Number Publication Date
JP2007212082A true JP2007212082A (en) 2007-08-23
JP4494346B2 JP4494346B2 (en) 2010-06-30

Family

ID=38490692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006033645A Active JP4494346B2 (en) 2006-02-10 2006-02-10 Combustion heater

Country Status (1)

Country Link
JP (1) JP4494346B2 (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009186152A (en) * 2008-02-08 2009-08-20 Paloma Ind Ltd Heating cooker
JP2009186153A (en) * 2008-02-08 2009-08-20 Paloma Ind Ltd Heating cooker
JP2009210196A (en) * 2008-03-04 2009-09-17 Ihi Corp Heating device
JP2009210197A (en) * 2008-03-04 2009-09-17 Ihi Corp Heating device
JP2010054089A (en) * 2008-08-27 2010-03-11 Toho Gas Co Ltd Member for combustor, and combustor
WO2010067595A1 (en) 2008-12-10 2010-06-17 株式会社Ihi Combustor
US20110005470A1 (en) * 2008-03-04 2011-01-13 Soichiro Kato Heating apparatus
WO2012060377A1 (en) 2010-11-04 2012-05-10 株式会社Ihi Combustion heating system
WO2012060437A1 (en) * 2010-11-04 2012-05-10 株式会社Ihi Combustion heater
JP2013015251A (en) * 2011-07-04 2013-01-24 Ihi Corp Combustion heater
WO2013015238A1 (en) * 2011-07-27 2013-01-31 株式会社Ihi Combustion heater
WO2013015240A1 (en) * 2011-07-27 2013-01-31 株式会社Ihi Hermetically-sealed gas heater and continuous heating furnace using hermetically-sealed gas heater
CN103688108A (en) * 2011-07-27 2014-03-26 株式会社Ihi Combustion heater
KR20140048332A (en) * 2011-09-05 2014-04-23 가부시키가이샤 아이에이치아이 Continuous heating furnace
CN103765146A (en) * 2011-09-05 2014-04-30 株式会社Ihi Heating furnace and continuous heating furnace
US20140260313A1 (en) * 2013-03-12 2014-09-18 The University Of Sydney Micro-mixer/combustor
JP2014173793A (en) * 2013-03-08 2014-09-22 Ihi Corp Combustion heater
CN105026864A (en) * 2013-03-08 2015-11-04 株式会社Ihi Continuous heating furnace
JP2016017641A (en) * 2014-07-04 2016-02-01 株式会社Ihi Combustion heater
JP2017058124A (en) * 2016-10-31 2017-03-23 株式会社Ihi Heating furnace and continuous heating furnace
CN111765457A (en) * 2020-06-28 2020-10-13 江苏科技大学 Combined micro burner using waste heat

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007155221A (en) * 2005-12-06 2007-06-21 Rinnai Corp Combustion heater

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007155221A (en) * 2005-12-06 2007-06-21 Rinnai Corp Combustion heater

Cited By (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009186152A (en) * 2008-02-08 2009-08-20 Paloma Ind Ltd Heating cooker
JP2009186153A (en) * 2008-02-08 2009-08-20 Paloma Ind Ltd Heating cooker
US20110005470A1 (en) * 2008-03-04 2011-01-13 Soichiro Kato Heating apparatus
JP2009210197A (en) * 2008-03-04 2009-09-17 Ihi Corp Heating device
JP2009210196A (en) * 2008-03-04 2009-09-17 Ihi Corp Heating device
KR101319950B1 (en) 2008-03-04 2013-10-21 가부시키가이샤 아이에이치아이 Heating apparatus
JP2010054089A (en) * 2008-08-27 2010-03-11 Toho Gas Co Ltd Member for combustor, and combustor
WO2010067595A1 (en) 2008-12-10 2010-06-17 株式会社Ihi Combustor
US9039408B2 (en) 2008-12-10 2015-05-26 Ihi Corporation Combustor with a combustion region between an inner pipe and outer pipe with an ignition device upstream of the combustion region
CN103168200A (en) * 2010-11-04 2013-06-19 株式会社Ihi Combustion heater
US20130216965A1 (en) * 2010-11-04 2013-08-22 Kimiyoshi Satoh Combustion-heating system
EP3106749A3 (en) * 2010-11-04 2017-03-08 IHI Corporation Combustion heater
KR101408369B1 (en) 2010-11-04 2014-06-18 가부시키가이샤 아이에이치아이 Combustion heater
KR101405277B1 (en) 2010-11-04 2014-06-10 가부시키가이샤 아이에이치아이 Combustion heating system
EP3106749A2 (en) 2010-11-04 2016-12-21 IHI Corporation Combustion heater
WO2012060377A1 (en) 2010-11-04 2012-05-10 株式会社Ihi Combustion heating system
US9395079B2 (en) 2010-11-04 2016-07-19 Ihi Corporation Combustion heater
JP2012097986A (en) * 2010-11-04 2012-05-24 Ihi Corp Combustion heater
US9447968B2 (en) 2010-11-04 2016-09-20 Ihi Corporation Combustion-heating system
EP2618053A4 (en) * 2010-11-04 2016-06-08 Ihi Corp Combustion heater
EP2636950A4 (en) * 2010-11-04 2016-04-20 Ihi Corp Combustion heating system
WO2012060437A1 (en) * 2010-11-04 2012-05-10 株式会社Ihi Combustion heater
TWI451049B (en) * 2010-11-04 2014-09-01 Ihi Corp Combustion heater
JP2013015251A (en) * 2011-07-04 2013-01-24 Ihi Corp Combustion heater
CN103688109B (en) * 2011-07-27 2016-06-08 株式会社Ihi The continuous furnace of closed gas heater and use closed gas heater
CN103748416A (en) * 2011-07-27 2014-04-23 株式会社Ihi Combustion heater
EP2738463A1 (en) * 2011-07-27 2014-06-04 IHI Corporation Combustion heater
WO2013015238A1 (en) * 2011-07-27 2013-01-31 株式会社Ihi Combustion heater
WO2013015240A1 (en) * 2011-07-27 2013-01-31 株式会社Ihi Hermetically-sealed gas heater and continuous heating furnace using hermetically-sealed gas heater
US9488383B2 (en) 2011-07-27 2016-11-08 Ihi Corporation Hermetically sealed gas heater and continuous heating furnace using hermetically sealed gas heater
JP2013029216A (en) * 2011-07-27 2013-02-07 Ihi Corp Combustion heater
EP2738464A4 (en) * 2011-07-27 2015-03-18 Ihi Corp Hermetically sealed gas heater and continuous heating furnace using hermetically sealed gas heater
EP2738463A4 (en) * 2011-07-27 2015-03-18 Ihi Corp Combustion heater
US9416964B2 (en) 2011-07-27 2016-08-16 Ihi Corporation Combustion heater
JP2013029217A (en) * 2011-07-27 2013-02-07 Ihi Corp Direct vent gas heater and continuous heating furnace using direct vent gas heater
KR101544925B1 (en) 2011-07-27 2015-08-17 가부시키가이샤 아이에이치아이 Combustion heater
KR101562646B1 (en) 2011-07-27 2015-10-22 가부시키가이샤 아이에이치아이 Combustion heater
CN103688109A (en) * 2011-07-27 2014-03-26 株式会社Ihi Hermetically-sealed gas heater and continuous heating furnace using hermetically-sealed gas heater
CN103688108A (en) * 2011-07-27 2014-03-26 株式会社Ihi Combustion heater
EP2738464A1 (en) * 2011-07-27 2014-06-04 IHI Corporation Hermetically sealed gas heater and continuous heating furnace using hermetically sealed gas heater
KR101624618B1 (en) 2011-09-05 2016-05-26 가부시키가이샤 아이에이치아이 Heating furnace and continuous heating furnace
CN105352315A (en) * 2011-09-05 2016-02-24 株式会社Ihi Heating furnace and continuous heating furnace
US10502487B2 (en) 2011-09-05 2019-12-10 Ihi Corporation Heating furnace and continuous heating furnace
US9869516B2 (en) * 2011-09-05 2018-01-16 Ihi Corporation Continuous heating furnace
KR101636417B1 (en) 2011-09-05 2016-07-05 가부시키가이샤 아이에이치아이 Continuous heating furnace
EP2754985A4 (en) * 2011-09-05 2015-08-12 Ihi Corp Heating furnace and continuous heating furnace
KR20140048332A (en) * 2011-09-05 2014-04-23 가부시키가이샤 아이에이치아이 Continuous heating furnace
US20140220502A1 (en) * 2011-09-05 2014-08-07 Kimiyoshi Satoh Continuous heating furnace
CN103765146A (en) * 2011-09-05 2014-04-30 株式会社Ihi Heating furnace and continuous heating furnace
CN105026864B (en) * 2013-03-08 2016-11-23 株式会社Ihi Continuous furnace
JP2014173793A (en) * 2013-03-08 2014-09-22 Ihi Corp Combustion heater
US9689613B2 (en) 2013-03-08 2017-06-27 Ihi Corporation Continuous heating furnace
CN105026864A (en) * 2013-03-08 2015-11-04 株式会社Ihi Continuous heating furnace
US20140260313A1 (en) * 2013-03-12 2014-09-18 The University Of Sydney Micro-mixer/combustor
JP2016017641A (en) * 2014-07-04 2016-02-01 株式会社Ihi Combustion heater
JP2017058124A (en) * 2016-10-31 2017-03-23 株式会社Ihi Heating furnace and continuous heating furnace
CN111765457A (en) * 2020-06-28 2020-10-13 江苏科技大学 Combined micro burner using waste heat

Also Published As

Publication number Publication date
JP4494346B2 (en) 2010-06-30

Similar Documents

Publication Publication Date Title
JP4494346B2 (en) Combustion heater
JP5445691B2 (en) Combustion heating system
JP4041984B2 (en) Micro combustor
WO2013035595A1 (en) Continuous heating furnace
WO2013035593A1 (en) Heating furnace and continuous heating furnace
TWI451049B (en) Combustion heater
JP4494345B2 (en) Combustion heater
JP4694955B2 (en) 2-layer combustor
JP4720396B2 (en) Micro combustor
JP5866845B2 (en) Combustion heater
JP4106553B2 (en) Micro combustor
WO2009110509A1 (en) Heating apparatus
JP2007085617A (en) Heat exchanger using micro-combuster
US9689613B2 (en) Continuous heating furnace
JP5909900B2 (en) Combustion heater and combustion heating system
JP2007225256A (en) Steam generator
JP5724686B2 (en) Combustion heater
KR20110092293A (en) Combustor
JP4689425B2 (en) Micro combustor
JP6782441B2 (en) Small vortex combustor
JP2577037B2 (en) Two-stage catalytic combustion reformer
JP5749856B2 (en) Gas burner system
JP5272698B2 (en) Combustor
JP5211765B2 (en) Heating device
JP5409415B2 (en) Sealed combustor

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080228

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20091120

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20091201

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100106

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100330

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100407

R150 Certificate of patent or registration of utility model

Ref document number: 4494346

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130416

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140416

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250