JP2007255747A - Wood pellet fuel combustion apparatus - Google Patents

Wood pellet fuel combustion apparatus Download PDF

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JP2007255747A
JP2007255747A JP2006077938A JP2006077938A JP2007255747A JP 2007255747 A JP2007255747 A JP 2007255747A JP 2006077938 A JP2006077938 A JP 2006077938A JP 2006077938 A JP2006077938 A JP 2006077938A JP 2007255747 A JP2007255747 A JP 2007255747A
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combustion
heat
air
resistant glass
wood
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JP4912003B2 (en
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Masayuki Domon
Tsuneo Kaneko
Shuji Omi
正幸 土門
修治 近江
常雄 金子
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Kaneko Agricult Mach Co Ltd
金子農機株式会社
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<P>PROBLEM TO BE SOLVED: To provide a wood pellet fuel combustion apparatus, promoting efficient combustion of good wood pellet fuel by preventing adhesion of ash and soot scattering in the space in a combustion chamber with combustion wind to the inner surface of a heat resisting glass and a temperature drop in the combustion chamber, and further favorably performing circulating convection of combustion wind in the combustion chamber to perform visually favorable combustion with an arranged flame. <P>SOLUTION: This wood pellet fuel combustion apparatus includes a blowout part for supplying air toward the inner surface of the heat resisting glass disposed on the front side of the combustion chamber that faces the interior of the combustion part, wherein a part of a radiating pipe of a heat exchange part is communicated with the blowout part, and some of hot air in the interior of the radiating pipe heated forced-fed to the heat exchange part and heated by the combustion wind is sprayed from the blowout part extending from the upper side to the lower side of the inner surface of the heat resisting glass. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、木質ペレットを燃焼燃料として使用する暖房機等の耐熱ガラスへの灰やスス等の付着を防止する木質ペレット燃料燃焼装置に関する。   The present invention relates to a wood pellet fuel combustion apparatus for preventing adhesion of ash, soot and the like to heat-resistant glass such as a heater using wood pellets as combustion fuel.
従来から暖房等の燃料として使用されている化石燃料の石炭や石油は、二酸化炭素等の温室効果ガスによる地球温暖化の問題で、それに代わる自然に優しい資源への転換が行われてきている。   Conventionally, fossil fuel coal and oil, which have been used as fuels for heating and the like, have been converted to natural friendly resources instead of natural warming due to greenhouse gases such as carbon dioxide.
今後期待される資源のうち、環境問題で有効であるとされるバイオマス燃料においては、籾殻又はそのペレット、藁等の燃料化が注目され、特に間伐材・大鋸屑・流木等の今まで焼却処分されていた木質材を木質ペレットとして粒状化し、暖房機等の燃焼燃料に利用され、実開昭58−190301号公報(特許文献1)に記載する固形燃料ストーブのようにその装置が公知となっている。   Of the expected resources, biomass fuel, which is considered to be effective due to environmental problems, is attracting attention as fuel for rice husk or its pellets, firewood, etc., especially thinned wood, large sawdust, driftwood, etc. The wood material which has been used is granulated as wood pellets and used as a combustion fuel for a heater or the like, and its apparatus becomes known as a solid fuel stove described in Japanese Utility Model Publication No. 58-190301 (Patent Document 1). Yes.
木質ペレット燃料燃焼装置のうち、木質ペレットストーブにおいては、そのバイオマス燃料の有効利用のほか、燃焼中の炎の演出によって安らぎを与える効果があるとされ、特開2004−293930号公報(特許公報2)のように燃焼室で燃焼する炎を外部から確認できる透明板を備えた木質ペレットストーブも公知となっている。   Among the wood pellet fuel combustion devices, the wood pellet stove has an effect of giving a peace of mind by producing a flame during combustion in addition to the effective use of the biomass fuel, and Japanese Patent Application Laid-Open No. 2004-293930 (Patent Publication 2). A wood pellet stove equipped with a transparent plate that can confirm the flame burning in the combustion chamber from the outside is also known.
ところで前記木質ペレットを燃焼させた後に発生する灰量、例えば木の木部で形成された木質ペレットはその灰分を約0.5〜2.0%とされているが、樹皮で成形されるペレットにおいてはその灰分が約5〜7%と多くなり、ペレット化する木質によってその灰量は可変するものであって、当然樹皮で成形された木質ペレットの燃焼後に堆積する灰と、燃焼風と一緒に舞い上がる灰の量も多くなるものである。   By the way, the amount of ash generated after burning the wood pellets, for example, the wood pellets formed in the wood part of the wood has an ash content of about 0.5 to 2.0%, but the pellets molded with bark In ash, the ash content increases to about 5 to 7%, and the amount of ash varies depending on the wood to be pelletized. Naturally, the ash deposited after burning the wood pellets molded from bark and the combustion wind The amount of ash that soars will also increase.
また、木質ペレットへの着火性も木の質によって異なるものであって、樹皮で形成されたペレットにおける着火性も、木部から成形されたペレットよりも悪く着火時に多くの煙を排出してもなかなか着火しない傾向がある。   In addition, the ignitability of wood pellets varies depending on the quality of the wood, and the ignitability of the pellets formed from bark is worse than the pellets formed from the xylem. There is a tendency not to ignite easily.
木の木部で形成した木質ペレットの燃焼においても、多少なりとも燃焼風と一緒に舞い上がる灰や、特に不完全燃焼、点火時のような時には煙と一緒にススが発生しやすく、燃焼室の炎が見えるように設けられた耐熱ガラスの覗き窓の内面にそれが付着し、特に前述の樹皮のペレットを燃焼させた場合においては、着火性の問題から特に覗き窓を曇らせ、そのストーブの管理者が頻繁に覗き窓を掃除する必要が発生している。   Even in the combustion of wood pellets formed by the wood part of the wood, soot is likely to be generated along with the ash that rises somewhat with the combustion wind, especially in the case of incomplete combustion, ignition, etc. When it adheres to the inner surface of the heat-resistant glass viewing window that is provided so that the flame can be seen, especially when the aforementioned bark pellets are burnt, the observation window is fogged, especially due to ignitability, and the stove is controlled A person frequently needs to clean the sight glass.
そのため、特開2004−191017号公報(特許文献3)のように、覗き窓となる耐熱ガラスの内側表面に向けて空気を吹付ける吹付け部と外気を取り入れる空気供給部とその両者を繋げる空気通路を備えて、空気供給部から取り入れられた燃焼するための空気の一部を空気通路に導き、そして吹付け部から耐熱ガラスの内側に向けて空気を吹付けて、耐熱ガラスの内側表面に灰やススの付着を防止して、耐熱ガラスの汚れの防止を促し、定期的なガラス面の掃除をしなくて済む発明も公知となっている。   Therefore, as disclosed in Japanese Patent Application Laid-Open No. 2004-191017 (Patent Document 3), a blowing unit that blows air toward the inner surface of the heat-resistant glass serving as a viewing window, an air supply unit that takes in outside air, and air that connects the two. A passage is provided so that a part of the combustion air taken in from the air supply part is guided to the air passage, and the air is blown from the blowing part toward the inside of the heat-resistant glass to be applied to the inner surface of the heat-resistant glass. Also known is an invention that prevents adhesion of ash and soot, promotes prevention of dirt on the heat-resistant glass, and eliminates periodic cleaning of the glass surface.
実開昭58−190301号公報Japanese Utility Model Publication No. 58-190301 特開2004−293930号公報JP 2004-293930 A 特開2004−191017号公報JP 2004-191017 A
木質ペレットを燃焼させた場合、前記の灰やススのほかタールが発生し、燃焼温度が150℃以下である場合にタールの発生が多くなる。特に前述の樹皮のペレットを燃焼させた場合においては、着火性の問題からタールの発生量が多くなる。   When wood pellets are burned, tar is generated in addition to the ash and soot, and tar generation increases when the combustion temperature is 150 ° C. or lower. In particular, when the aforementioned bark pellets are burned, the amount of tar generated increases due to the problem of ignitability.
特許文献3において、耐熱ガラスの内側に空気供給部から外気の一部を吹付けてススや灰が耐熱ガラスの内側表面に付着するのを防止することは可能であるが、耐熱ガラスに向けて、常温の外気を吹付けているため耐熱ガラス付近の温度は低くなり、タールの発生環境の助長を促している。また、外気の燃焼室への取込は燃焼室の温度の上昇を妨げる事となり温度上昇を阻害し、効率のよい木質ペレットの燃焼を妨げている。   In Patent Document 3, it is possible to prevent soot and ash from adhering to the inner surface of the heat-resistant glass by blowing a part of the outside air from the air supply unit to the inside of the heat-resistant glass. The temperature near the heat-resistant glass is lowered because the outside air at normal temperature is blown, which promotes the environment where tar is generated. In addition, the intake of outside air into the combustion chamber hinders the temperature rise of the combustion chamber, hinders the temperature rise, and prevents efficient combustion of the wood pellets.
さらに、燃焼室内では燃焼部から燃焼風による上昇風が発生し、耐熱ガラス付近で燃焼風が落下する循環対流を形成した燃焼であるほうが、左右方向にばらつくまたは広がる現象を防止し、垂直方向に真直ぐ伸びる炎を形成することがわかっている。しかしながら特許文献3においては、耐熱ガラス内側表面に向けて上昇する気流を形成してしまうため、燃焼室内での循環対流は形成されず、燃焼炎が乱れやすい傾向が発生する。   Furthermore, in the combustion chamber, rising air is generated by the combustion air from the combustion section, and combustion that forms a circulating convection in which the combustion air falls near the heat-resistant glass prevents the phenomenon of scattering or spreading in the left-right direction, and in the vertical direction. It has been found to form a straight flame. However, in Patent Document 3, since an air flow rising toward the inner surface of the heat-resistant glass is formed, the circulation convection in the combustion chamber is not formed, and the combustion flame tends to be disturbed.
そこで本発明では、熱交換部の放熱管内を強制的に流通する熱交換後の空気の一部を耐熱ガラスに向けて吹付けることによって、燃焼風に乗って燃焼室内の空間に飛散した灰やススを耐熱ガラスの内側表面に付着するのを防止すると共に、熱交換部で燃焼風と熱交換を行った高温の空気を吹付けているので、燃焼室内の温度低下を防止し、良好な木質ペレット燃料の効率的な燃焼を促進させ、さらには燃焼室内の燃焼風の循環対流を良好に行わせて、整った炎で視覚的にも良好な燃焼を行うことが出来る木質ペレット燃料燃焼装置を提供することを目的とする。   Therefore, in the present invention, by blowing a part of the air after heat exchange forcibly circulating in the heat radiating pipe of the heat exchange part toward the heat-resistant glass, ash or The soot is prevented from adhering to the inner surface of the heat-resistant glass, and high-temperature air that is heat-exchanged with the combustion air in the heat exchange section is blown to prevent the temperature in the combustion chamber from dropping and good wood quality A wood pellet fuel combustion device that promotes efficient combustion of pellet fuel, and also enables good circulatory convection of the combustion air in the combustion chamber to achieve good combustion visually with a well-prepared flame. The purpose is to provide.
上記目的を達成するために本発明は、請求項1ないし請求項3記載の木質ペレット燃料燃焼装置を提案するものである。   In order to achieve the above object, the present invention proposes a wood pellet fuel combustion apparatus according to claims 1 to 3.
即ち、請求項1記載の木質ペレット燃料燃焼装置は、木質ペレットを収納する燃焼タンクと、燃焼部と熱交換部を備えた燃焼室と、燃焼室の燃焼部に燃料タンクから木質ペレットを供給する燃料供給装置と、燃焼室の燃焼部で燃焼した燃焼風を排出する排気部とを具備した木質ペレット燃料燃焼装置であって、燃焼室の少なくとも前面側に配置した透明又は半透明の耐熱ガラスと、耐熱ガラスの燃焼部内に面する内側表面に向けて空気を供給する吹出し部を備えると共に、熱交換部の放熱管の一部と吹出し部を連通し、熱交換部に強制供給され燃焼風によって加熱した放熱管内部の温風の一部を、吹出し部から耐熱ガラスの内側表面に向けて吹出すことを特徴とするものである。   That is, the wood pellet fuel combustion apparatus according to claim 1 supplies the wood pellets from the fuel tank to the combustion tank storing the wood pellets, the combustion chamber having the combustion section and the heat exchange section, and the combustion section of the combustion chamber. A wood pellet fuel combustion apparatus comprising a fuel supply apparatus and an exhaust section for discharging combustion air combusted in a combustion section of a combustion chamber, the transparent or translucent heat-resistant glass disposed at least on the front side of the combustion chamber; And a blow-out portion for supplying air toward the inner surface facing the combustion portion of the heat-resistant glass, a part of the heat radiating pipe of the heat exchange portion and the blow-off portion are communicated, and are forcedly supplied to the heat exchange portion by the combustion wind A part of the hot air inside the heated radiating tube is blown out from the blowing portion toward the inner surface of the heat-resistant glass.
請求項2記載の木質ペレット燃料燃焼装置は、請求項1記載の木質ペレット燃料燃焼装置において、吹出し部から耐熱ガラス内側表面に吹付ける放熱管から供給される空気は、耐熱ガラスの上方から下方に向けて吹付けられることを特徴とするものである。   The wood pellet fuel combustion apparatus according to claim 2 is the wood pellet fuel combustion apparatus according to claim 1, wherein the air supplied from the heat radiating pipe sprayed from the blow-out portion to the inner surface of the heat resistant glass is directed downward from above the heat resistant glass. It is characterized by being sprayed toward.
請求項3記載の木質ペレット燃料燃焼装置は、請求項1または請求項2記載の木質ペレット燃料燃焼装置において、吹出し部は一本または複数の放熱管の末端に接続されるとともに、耐熱ガラスと平行に複数の孔が吹出し部底面に配置してなることを特徴とするものである。   The wood pellet fuel combustion apparatus according to claim 3 is the wood pellet fuel combustion apparatus according to claim 1 or 2, wherein the blowout portion is connected to the end of one or a plurality of heat radiation pipes and parallel to the heat resistant glass. A plurality of holes are arranged on the bottom surface of the blowout part.
燃焼室内の耐熱ガラス内側表面に、熱交換部の放熱管内を強制的に流通する熱交換後の空気の一部を吹付けることによって、燃焼風に乗って燃焼室内の空間に飛散した灰やススを耐熱ガラスの内側表面に付着するのを防止することが出来る。この耐熱ガラス内側表面に吹付ける空気は、燃焼風と熱交換を行って高温となっているので、耐熱ガラス内側表面の燃焼室内に吹出しても、燃焼室の温度を低下させること無いので、燃焼効率がよく木質ペレット燃料を良好に燃焼させることが可能となる。   By blowing a part of the air after heat exchange that forcibly circulates in the heat radiating pipe of the heat exchange part to the inner surface of the heat-resistant glass in the combustion chamber, the ash and soot that are scattered in the combustion chamber space by riding the combustion wind Can be prevented from adhering to the inner surface of the heat-resistant glass. The air blown to the inner surface of the heat-resistant glass is heated to exchange heat with the combustion wind, so even if it is blown into the combustion chamber on the inner surface of the heat-resistant glass, the temperature of the combustion chamber is not lowered. It is possible to efficiently burn the wood pellet fuel with good efficiency.
そして、耐熱ガラス表面に吹付ける風は上方から吹付けているので、燃焼室内で循環対流する空気即ち、燃焼部で上昇し耐熱ガラス付近で下降する流れを維持して、燃焼部の炎の形状を垂直的に形成し、横広がりを防止して視覚的に良好な炎の演出を維持する効果を有している。   And since the wind that blows on the surface of the heat-resistant glass is blown from above, the circulated convection air in the combustion chamber, that is, the flow that rises in the combustion part and descends in the vicinity of the heat-resistant glass, maintains the shape of the flame in the combustion part Are formed vertically, and have the effect of preventing the lateral spread and maintaining the visual appearance of a good flame.
本発明の木質ペレット燃料燃焼装置の例として、木質ペレットを燃料とするペレットストーブについて以下に説明を行う。   As an example of the wood pellet fuel combustion apparatus of the present invention, a pellet stove using wood pellets as fuel will be described below.
図1は本発明の実施の形態を示す木質ペレットストーブの側面断面略図である。図2は本発明の実施の形態を示す木質ペレットストーブの斜視図である。   FIG. 1 is a schematic side sectional view of a wood pellet stove showing an embodiment of the present invention. FIG. 2 is a perspective view of a wood pellet stove showing an embodiment of the present invention.
図1において1は木質ペレットストーブである。aは木質ペレットであって、木質ペレットストーブ1内には木質ペレットaが燃焼する燃焼室2と、その中間から上方には熱交換部5が設けられている。燃焼室2の上端には燃焼風排気口7が設けられ燃焼風を排風部6へ流通させている。燃焼室2には隣接して燃料タンク3を備え、燃料タンク3から燃焼室2へ木質ペレットaを供給する燃料供給装置4が燃料タンク3に密接して備えられている。38は吸引風路であって、木質ペレットストーブ1内に外気を取り込む風路であり、この吸引風路38から吸引された外気が各部の冷却や点火用の熱風及び燃焼風として利用される。図1に示す燃料タンク3は木質ペレットストーブ1の上端までの空間を有していて、木質ペレットストーブの上面が扉となって燃料タンク3内に木質ペレットaが投入できる構成であると良い(図示せず)。   In FIG. 1, 1 is a wood pellet stove. a is a wood pellet, and in the wood pellet stove 1, a combustion chamber 2 in which the wood pellet a burns, and a heat exchanging section 5 are provided from the middle to the top. A combustion wind exhaust port 7 is provided at the upper end of the combustion chamber 2 to circulate the combustion wind to the exhaust section 6. A fuel tank 3 is provided adjacent to the combustion chamber 2, and a fuel supply device 4 for supplying the wood pellets a from the fuel tank 3 to the combustion chamber 2 is provided in close contact with the fuel tank 3. Reference numeral 38 denotes a suction air passage, which is an air passage for taking outside air into the wood pellet stove 1, and the outside air sucked from the suction air passage 38 is used as hot air and combustion air for cooling and ignition of each part. The fuel tank 3 shown in FIG. 1 has a space up to the upper end of the wood pellet stove 1, and it is preferable that the wood pellet stove has an upper surface as a door so that the wood pellet a can be put into the fuel tank 3 ( Not shown).
燃料タンク3の下端を構成する底面板10が燃料供給装置4方向に向かって傾斜し、燃料供給装置4のスクリューコンベア8の投入口9に木質ペレットaが漏れなく投入できるようになっている。スクリューコンベア8の上端には燃焼室2内へ木質ペレットaを投入する投入シュート11と、投入シュート11内に外気を通風させるための通気口12が設けてあり、この通気口12は投入シュート11の途中に設けられていても良い。尚スクリューコンベア8の動力はモータ24の回転によって得られる。   The bottom plate 10 constituting the lower end of the fuel tank 3 is inclined toward the fuel supply device 4 so that the wood pellets a can be input to the input port 9 of the screw conveyor 8 of the fuel supply device 4 without leakage. At the upper end of the screw conveyor 8, there are provided an input chute 11 for introducing the wood pellet a into the combustion chamber 2, and an air vent 12 for allowing outside air to pass through the input chute 11. It may be provided in the middle. The power of the screw conveyor 8 is obtained by the rotation of the motor 24.
燃焼室2の後壁34と燃料タンク3及び燃料供給装置4とは冷却空間17を隔てて構成されていて、その冷却空間17には吸引風路38からの外気が流通するようになって、燃焼室2の燃焼熱を燃料タンク3及び燃料供給装置4に伝熱しないようになっている。   The rear wall 34 of the combustion chamber 2, the fuel tank 3, and the fuel supply device 4 are configured with a cooling space 17 therebetween, and outside air from the suction air passage 38 flows through the cooling space 17. The combustion heat in the combustion chamber 2 is not transferred to the fuel tank 3 and the fuel supply device 4.
燃焼室2の下方には、燃焼部26を有し、その燃焼部26には、投入シュート11より落下した木質ペレットaが堆積燃焼し、複数のスリット14を備える燃焼皿13と、燃焼皿13の後面には長細の筒内にヒータ16を備え、長細筒内を通過する空気をヒータ16によって高温(約250℃以上)にしてその高温の空気を木質ペレットaに当てることによって着火する構造の点火装置15が備えられている。   Below the combustion chamber 2, there is a combustion section 26, in which the wood pellets a that have fallen from the input chute 11 accumulate and burn, and a combustion dish 13 having a plurality of slits 14, and a combustion dish 13 The rear surface is provided with a heater 16 in a long thin tube, and the air passing through the long thin tube is heated to a high temperature (about 250 ° C. or higher) by the heater 16 and ignited by applying the high temperature air to the wood pellet a. An ignition device 15 having a structure is provided.
燃焼室2の前面には、燃焼部26から熱交換部5にとどかない範囲で、燃焼皿13で燃焼する木質ペレットの炎が外部から確認できる覗き窓を備えている。この覗き窓は透明もしくは半透明な耐熱ガラス25で構成され、この覗き窓自体が開閉できるようになっていて燃焼後の燃焼部26の掃除が出来る範囲の大きさであると良い。   On the front surface of the combustion chamber 2, there is provided a viewing window through which the flame of the wood pellets combusted in the combustion dish 13 can be confirmed from the outside in a range not reaching the heat exchange unit 5 from the combustion unit 26. The viewing window is composed of a transparent or semi-transparent heat-resistant glass 25, and the viewing window itself can be opened and closed so that the size of the viewing window can be cleaned.
燃焼皿13のスリット14は、投入された木質ペレットaが落下しない開口幅を保って燃焼皿13の略全面に前後左右どちらかの方向に長細形状に開口しており、底面の水平スリットと側面の垂直スリットが同じ開口幅を保ちつながって設けられ、燃焼皿13の下方には、燃焼皿13上の燃焼によって発生した灰がスリット14を通過して落下し、それを堆積させる灰回収容器29が燃焼皿13の設置面を覆う範囲で設けられている。28は灰除去手段であって、回転軸にスリット14の幅より薄い板状の凹凸板を設置し、凹凸板がスリット14内に進入して、スリット14上に堆積した固着した灰を強制的に灰回収容器29内に掻き落すようになっている。   The slit 14 of the combustion dish 13 is formed in an elongated shape in either the front, rear, left, or right direction on the substantially entire surface of the combustion dish 13 while maintaining an opening width at which the input wood pellet a does not fall. A vertical slit on the side surface is connected to maintain the same opening width, and an ash collection container in which ash generated by combustion on the combustion dish 13 falls through the slit 14 and accumulates below the combustion dish 13. 29 is provided in a range covering the installation surface of the combustion dish 13. 28 is an ash removing means, and a plate-shaped uneven plate thinner than the width of the slit 14 is installed on the rotating shaft, and the uneven plate enters the slit 14 to force the fixed ash deposited on the slit 14. The ash collection container 29 is scraped off.
燃焼室2の上端の熱風排気口7には、排風部6が備えられ、吸引ファン21の吸引作用によって燃焼風を吸引し、排気ダクト22から機外に燃焼風を排気している。この排気ダクト22は内側を排気ダクト22とし、外側を吸引風路38の二重筒として構成し、建物の外壁33を貫通させる場合に貫通穴を一つとすることが出来るので外壁33の貫通工事を簡略化すると共に、吸引風路38内を流入する外気を排気ダクト22の排気と熱交換することによって温め、温度上昇した吸引風の燃焼効率を上昇させる効果を有する。   The hot air exhaust port 7 at the upper end of the combustion chamber 2 is provided with an exhaust air section 6, which sucks the combustion air by the suction action of the suction fan 21 and exhausts the combustion air from the exhaust duct 22 to the outside of the machine. The exhaust duct 22 has an exhaust duct 22 on the inner side and a double cylinder of the suction air passage 38 on the outer side. When the outer wall 33 of the building is penetrated, a single through hole can be formed. In addition, the outside air flowing into the suction air passage 38 is warmed by exchanging heat with the exhaust of the exhaust duct 22, thereby increasing the combustion efficiency of the suction air whose temperature has increased.
燃焼室2の中間から上方にかけて木質ペレットストーブ1本体を前後に縦断する熱交換部5は、放熱管18と圧送ファン19からなり、木質ペレットストーブ1の周囲に接する空気を取り入れる開口部27から圧送ファン19によって空気を強制的に複数の放熱管18内に圧送し、放熱管18で熱交換した温風若しくは熱風を温風吹出し口A20から木質ペレットストーブ1の周囲に吹出すようにしている。なお、木質ペレットストーブ1が設置される室内の空気圧力を調節するために熱交換部5のいずれかの場所と吸引風路38とを連通する通気口35が設けられていると室内の空気圧力を屋外の空気圧と同等に出来るので良い。   The heat exchanging section 5 that longitudinally cuts the wood pellet stove 1 main body back and forth from the middle to the top of the combustion chamber 2 is composed of a heat radiating pipe 18 and a pressure feed fan 19, and is pumped from an opening 27 for taking in air around the wood pellet stove 1. Air is forcibly pumped into the plurality of heat radiating pipes 18 by a fan 19, and hot air or hot air heat-exchanged by the heat radiating pipes 18 is blown out from the hot air outlet A 20 around the wood pellet stove 1. In addition, in order to adjust the air pressure in the room in which the wood pellet stove 1 is installed, the air pressure in the room is provided if a vent hole 35 is provided to connect any location of the heat exchanging unit 5 and the suction air passage 38. Can be made equivalent to outdoor air pressure.
そして、少なくとも一本または数本の放熱管18の温風吹出し口B32は燃焼室2内の耐熱ガラス25の上端付近に隣接して設けられた吹出し部30と接合されている。吹出し部30は図2に示すように、耐熱ガラス25の略全幅に渡ってその幅を有し、その底面に複数の孔がガラス面に対して平行に設けられており、その孔から吹出される空気は耐熱ガラス25の内側表面に略平行か若干の角度をもって吹付けられるようになっている。なお、燃焼室2に設けられた放熱管18の中でも下端に配置されたものに温風吹出し口B32を有するようにすると、耐熱ガラス25までの距離が短くまた吹出し部30に簡単に接続できるの良い。   The at least one or several hot air outlets B32 of the heat radiating pipe 18 are joined to an outlet 30 provided adjacent to the vicinity of the upper end of the heat-resistant glass 25 in the combustion chamber 2. As shown in FIG. 2, the blow-out portion 30 has a width over substantially the entire width of the heat-resistant glass 25, and a plurality of holes are provided in parallel to the glass surface on the bottom surface, and blown out from the holes. The air is blown substantially parallel to the inner surface of the heat-resistant glass 25 or at a slight angle. It should be noted that if the hot air outlet B32 is provided at the lower end of the heat radiating pipe 18 provided in the combustion chamber 2, the distance to the heat-resistant glass 25 is short and can be easily connected to the outlet 30. good.
23は温度センサであって、排気ダクト22又は吸引ファン21の出入口のどちらかに備えられ、モータ24・ヒータ16・圧送ファン19・吸引ファン21・灰除去手段28は制御部31に繋がれ、それぞれが制御されている。   23 is a temperature sensor, which is provided at either the exhaust duct 22 or the inlet / outlet of the suction fan 21, and the motor 24, heater 16, pumping fan 19, suction fan 21, and ash removal means 28 are connected to the control unit 31. Each is controlled.
吸引ファン21の動作によって吸引風路38から外気が直接又は冷却空間17を経由して燃焼部26のスリット14及び点火装置15の細長筒内を、そして若干の一部の外気が投入シュート11を冷却しながら燃焼室2内に達する。燃料タンク3からスクリューコンベア8を経由して燃焼室2の燃焼部26に木質ペレットaが投入され点火装置15によって着火し、吸引ファン21の吸引作用によってスリット14からの通風されて木質ペレットaは安定して燃焼を続ける。その後この燃焼風は熱交換部5で熱交換され燃焼風排気口7から吸引ファン21を通過し、排気ダクト22から機外に排出される。   As a result of the operation of the suction fan 21, the outside air flows directly from the suction air passage 38 or directly through the cooling space 17 into the slit 14 of the combustion unit 26 and the elongated cylinder of the ignition device 15, and a part of the outside air enters the charging chute 11. It reaches the combustion chamber 2 while cooling. The wood pellet a is introduced from the fuel tank 3 into the combustion section 26 of the combustion chamber 2 via the screw conveyor 8 and ignited by the ignition device 15, and is blown from the slit 14 by the suction action of the suction fan 21. Continue to burn stably. Thereafter, the combustion air is heat-exchanged in the heat exchanging section 5, passes through the suction fan 21 from the combustion air exhaust port 7, and is discharged out of the machine from the exhaust duct 22.
運転開始と共に、ヒータ16に通電し、通電が規定時間経過後に予熱完了と判断してモータ24に通電し燃料供給手段4を一定時間稼動させ、木質ペレットaを燃料タンク3内からスクリューコンベア8内を上昇させて燃焼皿13に供給を行う。設定時間経過後に吸引ファン21を起動させ、燃焼皿13上に木質ペレットaの供給を設定時間内間欠的に行い、温度センサ23で排気される温度が設定温度(45℃)到達時に燃焼とみなし、圧送ファン19を稼動すると共に、通常燃焼状態を判断し温度制御運転を開始して、設定された間隔と設定の時間の範囲でモータ24に通電し、設定の燃焼量に応じた燃焼燃料の供給を間欠的におこない、その後温度センサ23の温度が設定温度より下降しなければ安定燃焼と判断してヒータ16への通電を停止する。   At the start of operation, the heater 16 is energized, and after energization is determined to have completed the preheating, the motor 24 is energized and the fuel supply means 4 is operated for a certain period of time, so that the wood pellet a is moved from the fuel tank 3 into the screw conveyor 8. Is raised and supplied to the combustion dish 13. After the set time has elapsed, the suction fan 21 is started, and the wood pellets a are intermittently supplied onto the combustion dish 13 within the set time. When the temperature exhausted by the temperature sensor 23 reaches the set temperature (45 ° C.), it is regarded as combustion. Then, while operating the pressure feed fan 19, the normal combustion state is judged and the temperature control operation is started, and the motor 24 is energized within the set interval and the set time range, and the combustion fuel corresponding to the set combustion amount is set. Supply is intermittently performed, and thereafter, if the temperature of the temperature sensor 23 does not fall below the set temperature, it is determined that stable combustion is performed, and energization to the heater 16 is stopped.
安定燃焼中の暖房の温度調節として、燃料供給を3段階に調節できるようになっており、その供給量の調節に伴って吸引ファン21の風量も3段階に制御される。燃料供給「大」ではスリット14を上昇する風速は約2〜3m/s、「中」での風速は「大」の風速の約80%、「小」での風速は「大」の風速の約70%となっている。   As temperature adjustment for heating during stable combustion, the fuel supply can be adjusted in three stages, and the air volume of the suction fan 21 is controlled in three stages in accordance with the adjustment of the supply amount. In the case of fuel supply “large”, the wind speed rising up the slit 14 is about 2 to 3 m / s, the wind speed at “medium” is about 80% of the wind speed of “large”, and the wind speed at “small” is the speed of “large” About 70%.
吸引ファン21の稼動によって、燃焼部26には吸引風路38から建物の外壁33の外、即ち屋外からの外気を吸引し、木質ペレットaの燃焼部26での安定した燃焼を可能としてその燃焼風が熱交換部5を通過することで放熱管18の加熱を行う。燃焼風によって加熱された放熱管18は、圧送ファン19から圧送される木質ペレットストーブ1の周囲に接する空気、即ち建物の外壁33の内側である室内の空気を加熱して温風吹出し口A20から再び室内に開放し、その循環を繰り返すことによって室内の暖房を行う。   By operating the suction fan 21, the combustion section 26 sucks outside air from the outside wall 33 of the building, that is, outside from the outside through the suction air passage 38, and enables stable combustion in the combustion section 26 of the wood pellet a. When the wind passes through the heat exchanging section 5, the heat radiating pipe 18 is heated. The heat radiating pipe 18 heated by the combustion air heats the air in contact with the periphery of the wood pellet stove 1 fed from the pressure feeding fan 19, that is, the indoor air inside the outer wall 33 of the building to heat the air from the hot air outlet A20. The room is opened again, and the room is heated by repeating the circulation.
吹出し部30は前述のように、耐熱ガラス25の上端付近にそしてその幅も耐熱ガラス25の略全幅に渡ってそれぞれの温風吹出し口B32を繋ぐように設けられ、吹出し部30の底面には耐熱ガラス25から距離を同じくして複数の孔36が均等な間隔を保って設けられている。一本または複数本の温風吹出し口B32を有する放熱管18内を通過してきた室内の空気は、吹出し部30に侵入した時点で吹出し部30内に均等に広がり、吹出し部30の底面にある複数の孔36から下方向に吹出される。この孔36から吹出される空気は耐熱ガラス25の上端から下方に向かって吹付けられるものであって、耐熱ガラス25の全幅及び全長に渡って全面を均等にその表面付近を通風することで、燃焼部26で発生する灰やススを燃焼部の底面方向に落とし込み、耐熱ガラス25に付着させることが無く、しかも耐熱ガラス25表面に供給される空気は、熱交換後の加熱した空気であるため、燃焼室2の温度低下をまねくことなく良好な燃焼を可能とするものである。   As described above, the blowing portion 30 is provided near the upper end of the heat-resistant glass 25 and its width is connected to each hot air blowing port B32 over substantially the entire width of the heat-resistant glass 25. A plurality of holes 36 are provided at equal intervals from the heat-resistant glass 25 at the same distance. The indoor air that has passed through the heat radiating pipe 18 having one or a plurality of hot air outlets B32 spreads evenly into the outlet 30 when it enters the outlet 30, and is located at the bottom of the outlet 30. The air is blown downward from the plurality of holes 36. The air blown out from the hole 36 is blown downward from the upper end of the heat-resistant glass 25, and the entire surface of the heat-resistant glass 25 is uniformly blown through the entire surface over the entire width and length. Since ash and soot generated in the combustion unit 26 are dropped toward the bottom surface of the combustion unit and do not adhere to the heat-resistant glass 25, and the air supplied to the surface of the heat-resistant glass 25 is heated air after heat exchange. Favorable combustion is possible without causing a temperature drop in the combustion chamber 2.
そして、この耐熱ガラス25の内側表面の上方から下方に下降する空気の流れを作り出すことによって、耐熱ガラス25から距離を置いて燃焼室の略中央若しくは後方に配置されている燃焼部26の上方に上昇する空気の流れを形成し、燃焼風の上昇気流を補助して炎の横への広がり特に耐熱ガラス25方向への炎の靡き現象が抑制され、炎が垂直方向に立ち見栄えの良い整った炎の演出を可能とするものである。   Then, by creating a flow of air that descends from the upper side of the inner surface of the heat-resistant glass 25, a distance from the heat-resistant glass 25 is placed above the combustion part 26 that is disposed at the approximate center or rear of the combustion chamber. A rising air flow is formed and the upward flow of the combustion air is assisted to spread the flame to the side, and in particular, the flame burning phenomenon in the direction of the heat-resistant glass 25 is suppressed, and the flame stands in the vertical direction and has a good appearance. It is possible to produce a flame.
吹出し部30から吹出される空気は熱交換部5を通過した室内の空気であって、その空気は燃焼風排気口7から排風部6を経て、排気ダクトから屋外に排出されるため、木質ペレットストーブ1を設置する室内の密閉度が高い場合、室内の気圧が下がり吸引ファン21の吸引作用が減少するので良好な燃焼が不可能になる場合があるが、吸引風路38と熱交換部5の一部に設けられた通気口35によって屋外の外気の一部を熱交換部5に流入させることによって、木質ペレットストーブ1を稼動させても、屋外と屋内の気圧を同じくして良好な燃焼を可能とするものである。   The air blown out from the blow-out unit 30 is indoor air that has passed through the heat exchanging unit 5, and the air is discharged from the combustion air exhaust port 7 through the exhaust air unit 6 to the outside through the exhaust duct. When the degree of airtightness in the room where the pellet stove 1 is installed is high, the air pressure in the room decreases and the suction action of the suction fan 21 is reduced, so that good combustion may not be possible. Even if the wood pellet stove 1 is operated by allowing a part of the outdoor air to flow into the heat exchanging part 5 through the vent hole 35 provided in a part of the air, the outdoor and indoor air pressure is the same. Combustion is possible.
本発明の実施の形態を示す木質ペレットストーブの側面断面略図である。1 is a schematic side sectional view of a wood pellet stove showing an embodiment of the present invention. 本発明の実施の形態を示す木質ペレットストーブの斜視図である。It is a perspective view of the wood pellet stove which shows embodiment of this invention.
符号の説明Explanation of symbols
1 木質ペレットストーブ
2 燃焼室
3 燃料タンク
4 燃料供給手段
5 熱交換部
6 排風部
7 燃焼風排気口
8 スクリューコンベア
9 投入口
10 底面板
11 投入シュート
12 通気口
13 燃焼皿
14 スリット
15 点火装置
16 ヒータ
17 冷却空間
18 放熱管
19 圧送ファン
20 温風吹出し口A
21 吸引ファン
22 排気ダクト
23 温度センサ
24 モータ
25 耐熱ガラス
26 燃焼部
27 開口部
28 灰除去手段
29 灰回収容器
30 吹出し部
31 制御部
32 温風吹出し口B
33 外壁
34 後壁
35 通気口
36 孔
38 吸引風路
a 木質ペレット

DESCRIPTION OF SYMBOLS 1 Wood pellet stove 2 Combustion chamber 3 Fuel tank 4 Fuel supply means 5 Heat exchange part 6 Exhaust part 7 Combustion wind exhaust port 8 Screw conveyor 9 Input port 10 Bottom plate 11 Input chute 12 Ventilation port 13 Combustion dish 14 Slit 15 Ignition device 16 Heater 17 Cooling space 18 Radiation pipe 19 Pump fan 20 Hot air outlet A
DESCRIPTION OF SYMBOLS 21 Suction fan 22 Exhaust duct 23 Temperature sensor 24 Motor 25 Heat-resistant glass 26 Combustion part 27 Opening part 28 Ash removal means 29 Ash collection container 30 Outlet part 31 Control part 32 Hot air outlet B
33 Outer wall 34 Rear wall 35 Vent 36 Hole 38 Suction air path a Wood pellet

Claims (3)

  1. 木質ペレットを収納する燃焼タンクと、燃焼部と熱交換部を備えた燃焼室と、燃焼室の燃焼部に燃料タンクから木質ペレットを供給する燃料供給装置と、燃焼室の燃焼部で燃焼した燃焼風を排出する排気部とを具備した木質ペレット燃料燃焼装置であって、
    燃焼室の少なくとも前面側に配置した透明又は半透明の耐熱ガラスと、耐熱ガラスの燃焼部内に面する内側表面に向けて空気を供給する吹出し部を備えると共に、熱交換部の放熱管の一部と吹出し部を連通し、熱交換部に強制供給され燃焼風によって加熱した放熱管内部の温風の一部を、吹出し部から耐熱ガラスの内側表面に向けて吹出すことを特徴とする、木質ペレット燃料燃焼装置。
    Combustion tank for storing wood pellets, combustion chamber with combustion section and heat exchange section, fuel supply device for supplying wood pellets from the fuel tank to the combustion section of the combustion chamber, and combustion burned in the combustion section of the combustion chamber A wood pellet fuel combustion apparatus comprising an exhaust for discharging wind;
    A transparent or semi-transparent heat-resistant glass disposed at least on the front side of the combustion chamber, and a blow-out part that supplies air toward the inner surface facing the combustion part of the heat-resistant glass, and a part of the heat-radiating part radiating tube The wood is characterized in that a part of the hot air inside the heat radiating pipe that is forcedly supplied to the heat exchanging part and heated by the combustion air is blown out from the blowing part toward the inner surface of the heat-resistant glass. Pellet fuel combustion device.
  2. 吹出し部から耐熱ガラス内側表面に吹付ける放熱管から供給される空気は、耐熱ガラスの上方から下方に向けて吹付けられることを特徴とする、請求項1記載の木質ペレット燃料燃焼装置。   The wood pellet fuel combustion apparatus according to claim 1, wherein the air supplied from the heat radiating tube sprayed from the blow-out portion to the inner surface of the heat-resistant glass is blown from the upper side to the lower side of the heat-resistant glass.
  3. 吹出し部は一本または複数の放熱管の末端に接続されるとともに、耐熱ガラスと平行に複数の孔が吹出し部底面に配置してなることを特徴とする、請求項1または請求項2記載の木質ペレット燃料燃焼装置。

    The blow-out part is connected to the end of one or a plurality of heat radiation pipes, and a plurality of holes are arranged on the bottom face of the blow-out part in parallel with the heat-resistant glass. Wood pellet fuel combustion equipment.

JP2006077938A 2006-03-22 2006-03-22 Wood pellet fuel combustion equipment Active JP4912003B2 (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100873035B1 (en) 2008-04-30 2008-12-08 주식회사 다송에너텍 A solid fuel-wood pellet type boiler
JP2009275985A (en) * 2008-05-14 2009-11-26 Yamamoto Co Ltd Woody pellet combustion device
KR100934347B1 (en) 2009-06-01 2009-12-29 김미자 Auto hot blast heater using sawdust and pellet fuel
CN102778028A (en) * 2012-07-05 2012-11-14 怀远县巨龙机械制造有限公司 Efficient hot air furnace
KR101324944B1 (en) 2013-04-12 2013-11-13 동원신재생에너지 주식회사 Eco-friendly wood-pellets stove
KR101458862B1 (en) * 2013-02-20 2014-11-12 김남준 the for both hot-air blower and wood burn boiler system
JP2015004487A (en) * 2013-06-21 2015-01-08 株式会社木原製作所 In-space temperature control system
KR20160112212A (en) * 2015-03-18 2016-09-28 성우디디아이 (주) Burning device for wood fillet
KR20170001437U (en) * 2015-10-14 2017-04-24 주식회사 엘스 Pellet heating apparatus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491468Y1 (en) * 1969-04-11 1974-01-16
JPS564753A (en) * 1979-06-15 1981-01-19 Sulzer Ag Knititing model handling apparatus of link knitting machine
JPS58190301A (en) * 1982-04-30 1983-11-07 Iseki Agricult Mach Working machine for rice field
JPS63213750A (en) * 1986-11-06 1988-09-06 Jiyon Shimetsuku Ronarudo Zero clearance heating apparatus
JPH03236544A (en) * 1990-02-14 1991-10-22 Matsushita Electric Ind Co Ltd Combustion equipment
JP2004191017A (en) * 2002-12-13 2004-07-08 Sunpot Co Ltd Wood pellet fuel combustion system
JP2004293930A (en) * 2003-03-27 2004-10-21 Obata Yoshimori Combustion chamber of wooden-pellet stove

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491468Y1 (en) * 1969-04-11 1974-01-16
JPS564753A (en) * 1979-06-15 1981-01-19 Sulzer Ag Knititing model handling apparatus of link knitting machine
JPS58190301A (en) * 1982-04-30 1983-11-07 Iseki Agricult Mach Working machine for rice field
JPS63213750A (en) * 1986-11-06 1988-09-06 Jiyon Shimetsuku Ronarudo Zero clearance heating apparatus
JPH03236544A (en) * 1990-02-14 1991-10-22 Matsushita Electric Ind Co Ltd Combustion equipment
JP2004191017A (en) * 2002-12-13 2004-07-08 Sunpot Co Ltd Wood pellet fuel combustion system
JP2004293930A (en) * 2003-03-27 2004-10-21 Obata Yoshimori Combustion chamber of wooden-pellet stove

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100873035B1 (en) 2008-04-30 2008-12-08 주식회사 다송에너텍 A solid fuel-wood pellet type boiler
JP2009275985A (en) * 2008-05-14 2009-11-26 Yamamoto Co Ltd Woody pellet combustion device
KR100934347B1 (en) 2009-06-01 2009-12-29 김미자 Auto hot blast heater using sawdust and pellet fuel
CN102778028A (en) * 2012-07-05 2012-11-14 怀远县巨龙机械制造有限公司 Efficient hot air furnace
KR101458862B1 (en) * 2013-02-20 2014-11-12 김남준 the for both hot-air blower and wood burn boiler system
KR101324944B1 (en) 2013-04-12 2013-11-13 동원신재생에너지 주식회사 Eco-friendly wood-pellets stove
JP2015004487A (en) * 2013-06-21 2015-01-08 株式会社木原製作所 In-space temperature control system
KR20160112212A (en) * 2015-03-18 2016-09-28 성우디디아이 (주) Burning device for wood fillet
KR101663979B1 (en) 2015-03-18 2016-10-11 성우디디아이 (주) Burning device for wood fillet
KR20170001437U (en) * 2015-10-14 2017-04-24 주식회사 엘스 Pellet heating apparatus
KR200483709Y1 (en) 2015-10-14 2017-06-22 주식회사 엘스 Pellet heating apparatus

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