JPS5833004A - Combustion device for solid fuel - Google Patents
Combustion device for solid fuelInfo
- Publication number
- JPS5833004A JPS5833004A JP13185581A JP13185581A JPS5833004A JP S5833004 A JPS5833004 A JP S5833004A JP 13185581 A JP13185581 A JP 13185581A JP 13185581 A JP13185581 A JP 13185581A JP S5833004 A JPS5833004 A JP S5833004A
- Authority
- JP
- Japan
- Prior art keywords
- combustion chamber
- combustion
- chamber
- solid fuel
- heat exchange
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B5/00—Combustion apparatus with arrangements for burning uncombusted material from primary combustion
- F23B5/04—Combustion apparatus with arrangements for burning uncombusted material from primary combustion in separate combustion chamber; on separate grate
Abstract
Description
【発明の詳細な説明】 本発明は固形燃料用燃焼装置に関する。[Detailed description of the invention] The present invention relates to a solid fuel combustion device.
石油の高騰に伴い、近年再び石Ｓｔ−始めとする固形燃
料が見直されている。しかしながら、現在の石油を燃料
とする燃焼装置は完全燃焼化が比較的容易に得られるの
に対し、固形燃料を燃料とする燃焼装置では完全燃焼お
よび高熱効率が長期に亘って得られない火点があった。With the soaring price of oil, solid fuels such as stone are being reconsidered in recent years. However, while combustion devices that use current petroleum as fuel can achieve complete combustion relatively easily, combustion devices that use solid fuels have a long-term ignition point that makes it impossible to achieve complete combustion and high thermal efficiency. was there.
そこで、固形熱料および一次空気が供給される第１燃焼
室と、第１燃焼室と連通し、二次空気が供給される第２
燃焼室と、この第２燃焼室に連通ずる多数の熱交換パイ
プを配設した熱交換室とからなる燃焼装置を本出願人は
既に提案した（特願昭５５−１６６９０５号）。この燃
焼装置は比較的低温燃焼で完全燃焼化が図れる低Ｎ Ｏ
ｘ型であることから、極めて実用性の高い装置であるが
、固形燃料の燃焼では一般に燃焼温度が低く火炎の長さ
が長いこと、および第２燃焼室内での火炎は第２燃焼室
上壁に沿って流れることから、第２燃焼室内で二次燃焼
が終了せず、次段の熱交換パイプにまで火炎が伸びてい
た。そのため、未燃ＣＯガスがＣＯ２に反応しないまま
排出され、公害の原因となるばかりか、第２燃焼室の下
部が燃焼に寄与しないデッドスペースとなっていた。さ
らに、燃焼ガス中のダストが直接熱交換パイプ内に入シ
、熱交換パイプ内へのダスト付着が多くなシ、伝熱効率
が低下する欠点があった。Therefore, a first combustion chamber is provided with a solid heating material and primary air, and a second combustion chamber is communicated with the first combustion chamber and is supplied with secondary air.
The present applicant has already proposed a combustion device consisting of a combustion chamber and a heat exchange chamber in which a large number of heat exchange pipes communicating with the second combustion chamber are arranged (Japanese Patent Application No. 166905/1982). This combustion device is a low-NO combustion device that achieves complete combustion with relatively low-temperature combustion.
Because it is an , the secondary combustion did not end in the second combustion chamber, and the flame extended to the next-stage heat exchange pipe. Therefore, unburned CO gas is discharged without reacting with CO2, causing not only pollution, but also the lower part of the second combustion chamber becoming a dead space that does not contribute to combustion. Furthermore, the dust in the combustion gas directly enters the heat exchange pipe, resulting in a large amount of dust adhering to the heat exchange pipe, resulting in a reduction in heat transfer efficiency.
本発明はかかる欠点に鑑みてなされたもので、その目的
は、第２燃焼室の上部に邪魔板を設けることにより、燃
焼ガスの流れを変化させてデッドスペースとなっていた
第２燃焼室の下部に火炎を回り込ませ、ＣＯ量の減少、
ダスト付着量の軽減を図る固形燃料用燃焼装置を提供す
ることにある。The present invention was made in view of these drawbacks, and its purpose is to change the flow of combustion gas by providing a baffle plate at the top of the second combustion chamber, thereby eliminating the dead space in the second combustion chamber. By letting the flame go around the bottom, the amount of CO is reduced,
An object of the present invention is to provide a solid fuel combustion device that reduces the amount of dust attached.
以下、本発明を実施例である添付図面にしたがって説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings which are exemplary embodiments.
第１図、第２図は本発明にかかる固形燃料用燃焼装置を
温風暖房装置に適用した一例を示し、この暖房装置の一
側部には、上面に燃料投入口１を有するホッパー形状の
貯炭室２が形成されておフ、この貯炭室２の下部に連続
して、傾斜した火格子３を有する第１燃焼室４が形成さ
れている。なお、５は着火口、６は着火口１５に対応す
る位置に張り出した張り出し部である。燃料投入口１か
ら投入された固形燃料は貯炭室２および第１燃焼室４に
積層され、第１燃焼室４における燃焼の進行にともなっ
て自重落下により貯炭室２から第１燃焼室４へと自動供
給される。Fig. 1 and Fig. 2 show an example in which the solid fuel combustion device according to the present invention is applied to a hot air heating device, and one side of the heating device has a hopper-shaped hopper having a fuel input port 1 on the top surface. A coal storage chamber 2 is formed, and a first combustion chamber 4 having an inclined fire grate 3 is formed continuously below the coal storage chamber 2. In addition, 5 is an ignition port, and 6 is an overhanging portion extending at a position corresponding to the ignition port 15. The solid fuel input from the fuel input port 1 is stacked in the coal storage chamber 2 and the first combustion chamber 4, and as combustion progresses in the first combustion chamber 4, it falls from the coal storage chamber 2 to the first combustion chamber 4 due to its own weight. Automatically supplied.
上記火格子８は多：数の小片を支軸７に取付け、支軸７
の一端のハシ１ドル８を回すことにより回動可能となっ
ており、小片の上に溜った灰を灰受箱９内に落し、灰出
口１０から灰を取出すことができるようになっている。The above-mentioned grate 8 is made by attaching a large number of small pieces to the support shaft 7.
It can be rotated by turning the handle 8 at one end, and the ash accumulated on the small pieces can be dropped into the ash receiving box 9 and the ash can be taken out from the ash outlet 10. .
したがって、連続燃焼運転中であっても適宜灰落しを行
なうことが可能である。例えば、固形燃料として灰分１
．５％を含む褐炭を用いた場合には、上記灰落し操作は
１日１回七十分であったが、通常の１５％程度の灰分を
含む石灰においては、３時間に１日程度の灰落し操作が
必要となり、その場合にはタイマ等を用いて自動灰落し
操作を行なうことも可能である。Therefore, it is possible to remove ash as appropriate even during continuous combustion operation. For example, 1 ash content as solid fuel
．． When lignite containing 5% ash was used, the above ash removal operation was carried out once a day for 70 minutes, but with lime containing normal 15% ash, the ash was removed every 3 hours. If an ash removal operation is required, it is also possible to perform an automatic ash removal operation using a timer or the like.
なお、上記火格子３を傾斜させたのは、第１燃焼室４に
積層された固形燃料の高さをはソ均一にするためであり
、これにより第１燃焼室４内の燃焼状態の〜アンバラン
ヌを解消できる。The reason why the grate 3 is inclined is to make the height of the solid fuel stacked in the first combustion chamber 4 uniform, so that the combustion state in the first combustion chamber 4 can be adjusted to Unbalance can be resolved.
上記第１燃焼室４の側方には筒状の第２燃焼室１１が隣
接して形成されており、第１燃焼室４と第２燃焼室１１
との連通部４０には所定高さの隔壁１２が設けられてい
る。この隔壁１２の上端と上記張り出し部６の先端とを
結ぶ線と鉛直線とのなす角が４０°より若干大きく設定
されておシ、これによって上記隔壁１２の近傍には着火
口５に対応した着火空間１３が形成されるとともに、上
記隔壁１２により固形燃料が第１燃焼室４がら第２燃焼
室１１に落ち込むのを防止することができる。A cylindrical second combustion chamber 11 is formed adjacent to the side of the first combustion chamber 4, and the first combustion chamber 4 and the second combustion chamber 11 are formed adjacent to each other.
A partition wall 12 of a predetermined height is provided in the communication portion 40 with the partition wall 12 . The angle formed between the line connecting the upper end of the partition wall 12 and the tip of the projecting portion 6 and the vertical line is set to be slightly larger than 40°, so that a hole corresponding to the ignition port 5 is formed in the vicinity of the partition wall 12. An ignition space 13 is formed, and the partition wall 12 can prevent solid fuel from falling from the first combustion chamber 4 into the second combustion chamber 11.
上記第２燃焼室１１の上部には、邪魔板４１が垂設され
ており、連通部４０からの火炎がこの邪魔板４１に当っ
て下方へ回り込み、その攪拌効果で燃焼反応が促進され
、第２燃焼室１１内での完全燃焼化およびＣＯ量の低減
を図ることができる。A baffle plate 41 is vertically installed above the second combustion chamber 11, and the flame from the communication portion 40 hits this baffle plate 41 and goes around downward, and its stirring effect promotes the combustion reaction. Complete combustion within the two combustion chambers 11 and a reduction in the amount of CO can be achieved.
邪魔板４１の長さは、圧損の点から、邪魔板４１の下端
部と第２燃焼室１１底部との間隔Ａが連通部４０の口径
２より大きく設定してあり、また邪魔板４１の水平方向
の位置については余り第１燃焼室４側に通帯ると、ガス
流が急激な方向変換によって乱れ、燃焼に悪影響を及ぼ
すので、第２燃焼室９１の中央付近に設けるのが好まし
い。The length of the baffle plate 41 is such that the distance A between the lower end of the baffle plate 41 and the bottom of the second combustion chamber 11 is set to be larger than the diameter 2 of the communication portion 40 from the viewpoint of pressure loss. Regarding the directional position, if it passes too far toward the first combustion chamber 4 side, the gas flow will be disturbed by the sudden direction change, which will have a negative effect on combustion, so it is preferable to provide it near the center of the second combustion chamber 91.
１４は燃焼用空気の送風機で、一方の風道１５から火格
子３の下方よシ第１燃焼室４へ一次空気を供給するとと
もｋ、他方の風道１６がら上記隔壁１２の上部側壁に形
成した二次空気送気孔１７を介して第２燃焼室１１に二
次空気を供給するものであ°る。すなわち、第１燃焼室
４内にある固形燃料は火格子３の隙間よフ送気された一
次空気によって燃焼するが、その燃焼ガス中には一次窒
気量をいかに調整してもＣＯガヌ等の不完全燃焼ガスが
残り、特に最適燃焼速度のと“きには固形燃料をガス化
したものに近い不完全燃焼ガスが多くなっていた。そこ
で、上記のごとく二次空気送気孔１７より二次空気を送
り込み、第２燃焼室１１で不完全燃焼ガスを完全燃焼さ
せ、熱効率を高めたのである。上記両風道１５．１６中
にはそれぞれ通気量調節ダンパー１８．１９が取付けら
れ、かつ−次空気用風道１５の先端には空気を遮断する
ことができる重力ダンパー２０が取付けられてぃる。通
気量調節ダンパー１８．１９は定常燃焼時における排気
ガス中の煙の発生をなくし、良好な燃焼状態を持続させ
るためのものであり、重力ダンパー２０は定常燃焼状態
から燃焼停止状態へと速やかに、かつ不完全燃焼を生じ
ることなく移行させるものである。上記二次空気用の風
道１６は第１燃焼室４の側壁に沿って設置されており、
第１燃焼室４の発生熱によって二次空気を予熱し、熱の
有効利用を図っている。14 is a blower for combustion air, which supplies primary air from one air passage 15 to the first combustion chamber 4 from below the grate 3; Secondary air is supplied to the second combustion chamber 11 through the secondary air supply hole 17 . That is, the solid fuel in the first combustion chamber 4 is combusted by the primary air blown through the gap in the grate 3, but no matter how the amount of primary nitrogen is adjusted, CO2 remains in the combustion gas. Particularly when the optimum combustion speed was reached, there was a large amount of incomplete combustion gas similar to gasified solid fuel. By feeding secondary air, the incomplete combustion gas is completely combusted in the second combustion chamber 11, increasing the thermal efficiency.Air flow rate adjusting dampers 18, 19 are installed in each of the above-mentioned air passages 15, 16, A gravity damper 20 capable of blocking air is attached to the tip of the air passage 15 for secondary air.The ventilation rate adjusting dampers 18 and 19 eliminate the generation of smoke in the exhaust gas during steady combustion. The gravity damper 20 is for maintaining a good combustion state, and the gravity damper 20 is for quickly transitioning from a steady combustion state to a combustion stop state without causing incomplete combustion. The air passage 16 is installed along the side wall of the first combustion chamber 4,
The secondary air is preheated by the heat generated in the first combustion chamber 4, and the heat is used effectively.
熱交換室２１は第２燃焼室１１の上部に連接して形成さ
れており、多数本並設された熱交換パイプ２２内を第２
燃焼室１１からの燃焼排ガスが通過し、熱交換パイプ２
２外を外気が通過するようになっている。外気は冷風入
口ｚ３に設けたファン２４により吸引され、温風出口２
５から排気される。一方、第１燃焼室４で燃焼されかつ
第２燃焼室１１で完全燃焼された排ガスは、熱交換パイ
プ２２の内側を通って熱交−され、排ガス出口２６より
煙突へ排気される。上記のように燃焼排ガスがパイプ２
２内を、外気がパイプ２２外を通過するように構成した
のは、ハウス栽培における温室のごとく多量でかつ比較
的低温の温風を得るためである。上記実施例では、第２
燃焼室１１は熱交換室２１の下方に設けられ、外気は熱
交換室２１からさらに第２燃焼索１１の外側を通って温
風出口２５から排出されるため、外気は熱交換室２１の
ほか第２燃焼室！！でも熱交換される。特に、第２燃焼
室１１内の燃焼ガヌは邪魔板４１によって乱流化される
ため、第２燃焼室１１の壁面が熱せられ、第２燃焼室１
１の伝熱効率が大巾に向上する。本発明者の実験によれ
ば、邪魔板４１によって効率が２０％向上した。The heat exchange chamber 21 is formed to be connected to the upper part of the second combustion chamber 11, and the heat exchange chamber 21 is connected to the upper part of the second combustion chamber 11.
The combustion exhaust gas from the combustion chamber 11 passes through the heat exchange pipe 2
2 Outside air is allowed to pass through. The outside air is sucked in by the fan 24 provided at the cold air inlet z3, and then passed through the hot air outlet 2.
Exhausted from 5. On the other hand, the exhaust gas that has been combusted in the first combustion chamber 4 and completely combusted in the second combustion chamber 11 passes through the heat exchange pipe 22 for heat exchange, and is exhausted from the exhaust gas outlet 26 to the chimney. As shown above, the combustion exhaust gas is transferred to pipe 2.
The reason why the outside air is configured to pass through the outside of the pipe 22 is to obtain a large amount of relatively low-temperature warm air like a greenhouse in greenhouse cultivation. In the above embodiment, the second
The combustion chamber 11 is provided below the heat exchange chamber 21 , and the outside air passes through the outside of the second combustion cable 11 from the heat exchange chamber 21 and is discharged from the hot air outlet 25 . Second combustion chamber! ! However, heat is exchanged. In particular, since the combustion gas in the second combustion chamber 11 is made turbulent by the baffle plate 41, the wall surface of the second combustion chamber 11 is heated, and the second combustion chamber 11 is heated.
The heat transfer efficiency of No. 1 is greatly improved. According to the inventor's experiments, the baffle plate 41 improved the efficiency by 20%.
２７は排気系統、例えば煙道に設けられた吸引ファンで
、この吸引ファン２７Ｉ／ｉ、第１燃焼室４内が種火状
態にあるとき固形燃料を投入しようとして燃料投入口１
を開けると、外気が貯度室２内に流入して燃焼ガスと混
合し、貯次室２内で爆発あるいは発火の危険性があるた
めに設けられたものである。上記吸引ファン２７により
、燃料投入口１を開けたときでも貯度室２内を負圧にす
ることができ、燃焼ガスは常に第１燃焼室４から第２燃
焼室１１へと流れ、爆発あるいは発火の危険性はない。Reference numeral 27 denotes a suction fan installed in the exhaust system, for example, a flue, and this suction fan 27I/i, when the inside of the first combustion chamber 4 is in the pilot state, attempts to inject solid fuel into the fuel inlet 1.
This is provided because, when opened, there is a risk that outside air will flow into the storage chamber 2 and mix with the combustion gas, causing an explosion or ignition within the storage chamber 2. The suction fan 27 allows negative pressure to be created in the storage chamber 2 even when the fuel inlet 1 is opened, and the combustion gas always flows from the first combustion chamber 4 to the second combustion chamber 11, causing an explosion or There is no risk of fire.
なお、上記実施例では隔壁１２のみによって固形燃料が
第１燃焼室４から第２燃焼室１１へ落ち込むのを防止し
たが、これに加えて、第２図に示すごとく隔壁１２の上
部に格子２８を設け、固形燃料の落ち込みを防止するよ
うにしてもよい。また、隔壁１２の上端と張り出し部６
の先端とを結ぶ線と鉛直線とのなす角をはソ４０とした
が、この角度は固形燃料自身の安息角により決定される
ものであり、描法の場合には６０以上とすれば有効であ
った。In the above embodiment, only the partition wall 12 prevents the solid fuel from falling from the first combustion chamber 4 to the second combustion chamber 11, but in addition to this, a grid 28 is provided on the top of the partition wall 12 as shown in FIG. may be provided to prevent the solid fuel from dropping. In addition, the upper end of the partition wall 12 and the overhanging portion 6
The angle between the line connecting the tip of the solid fuel and the vertical line was set to 40, but this angle is determined by the angle of repose of the solid fuel itself, and in the case of the drawing method, it is effective to set it to 60 or more. there were.
第４図は熱交換パイプ２２の付着ダストの除去用らせん
枕板の一例を示しており、Ｐはらせんの１ピッチ長さで
、Ｐ／２は半ピッチ長さを示している。このらせん枕板
は平板を成形加工して得られるが、−義的狙いである熱
交換パイプ内の付着ダストヲハク離させるためには、ら
せんの半ピツチ以上の摺動あるいは回転距離が必要であ
り、熱交換パイプの長さ等の設計条件により上記移動距
離を考−してピッチの長さが選定されるものである。FIG. 4 shows an example of a spiral pillow plate for removing dust attached to the heat exchange pipe 22, where P is the length of one pitch of the spiral, and P/2 is the length of a half pitch. This spiral pillow plate is obtained by molding a flat plate, but in order to remove the adhered dust inside the heat exchange pipe, which is the main purpose, a sliding or rotation distance of more than half the pitch of the spiral is required. The length of the pitch is selected in consideration of the above-mentioned travel distance, depending on design conditions such as the length of the heat exchange pipe.
第５図は第４図に示すらせん枕板を第１図に示す燃焼装
置の熱交換パイプ２２内に挿入および摺動自在に支持し
た態様を示す要部断面図である。FIG. 5 is a sectional view of a main part showing a mode in which the spiral pillow plate shown in FIG. 4 is inserted into the heat exchange pipe 22 of the combustion apparatus shown in FIG. 1 and supported slidably.
同図において、２βはダスト除去用らせん枕板、２９は
該らせん枕板の一端を複数本結束した部材であり、８１
はらせん枕板の摺動用把手である。In the figure, 2β is a spiral pillow board for removing dust, 29 is a member made by bundling a plurality of ends of the spiral pillow board, and 81
This is the sliding handle for the spiral pillow board.
熱交換パイプ２２内のらせん枕板２８は複数本結束され
て石綿等のシール部８２を介して外部の摺動用把手８１
に接続されている。又、熱交換室２１上部の熱交換パイ
プ２２内のらせん枕板２８ａは本実施態様の燃焼ガヌ流
路の設計上、別途結束された上、同図で排ガス出口２６
に隠れた状態の把手８１ａに接続されている。A plurality of spiral pillow plates 28 in the heat exchange pipe 22 are bundled together and connected to an external sliding handle 81 via a seal portion 82 made of asbestos or the like.
It is connected to the. Moreover, the spiral pillow board 28a in the heat exchange pipe 22 at the upper part of the heat exchange chamber 21 is tied separately due to the design of the combustion passage in this embodiment, and is connected to the exhaust gas outlet 26 in the figure.
The handle 81a is connected to the handle 81a, which is hidden behind the handle 81a.
これらの把手の摺動中はダスト除去効果を上げるため、
らせん枕板のらせんのＶ２以上となっている。又、熱交
換パイプ２２内局面をカバーできるように、そして、熱
交換パイプおよびらせん枕板等の熱膨張中をカバーする
ために結束部材２９とらせん枕板の端部々材３０とは、
例えば結束部ａ）
ドが可能なようにボルト締結されることが好ましい。While these handles are sliding, to increase the dust removal effect,
It is more than V2 of the spiral of the spiral pillow board. In addition, in order to cover the internal surface of the heat exchange pipe 22 and to cover the heat exchange pipe and the spiral pillow plate during thermal expansion, the binding member 29 and the end member 30 of the spiral pillow plate are
For example, it is preferable that the binding part a) be bolted so that it can be secured.
以上のように支持されたらせん枕板や他の支持材は、８
００〜９００°Ｃもの高温燃焼ガスと直接接触するため
、高温腐食に耐えうるような材料（例えばアルミメッキ
鋼やｓｕｓ ８１６等）を使用することが好ましい。The spiral pillow board and other supporting materials supported as described above are 8
Since it comes into direct contact with high-temperature combustion gas of 0.000 to 900.degree. C., it is preferable to use a material that can withstand high-temperature corrosion (for example, aluminized steel or SUS 816).
本実施例では手動の場合を示したが、把手の部分をピス
トン・シリンダ構成とし、これにタイマー等の制御機器
を加えて、定期的に自動運転させることも勿論可能であ
る。In this embodiment, a manual operation is shown, but it is of course possible to make the handle part have a piston-cylinder configuration, add a control device such as a timer, and periodically perform automatic operation.
なお、シール部８２の構成について、燃焼装置の燃焼タ
イプが、例えば第１図の排ガス口２６に設けた吸引ファ
ンによる誘Ｑ ｊ、：方式であれば、燃焼装置内は負圧
になるため、燃焼ガスの外部への流出は軽減される結果
、シール部の構成は前記した丸線等により簡便に施工可
能であるが、例えば第１図の送風機１４による押込方式
の場合には、燃焼ガスの流出を考慮してシール部を構成
する必要が生じる。Regarding the configuration of the seal portion 82, if the combustion type of the combustion device is, for example, the induction type using the suction fan provided at the exhaust gas port 26 in FIG. As a result of reducing the outflow of combustion gas to the outside, the seal part can be easily constructed using the above-mentioned round wire, etc.; It becomes necessary to configure the seal portion in consideration of outflow.
第６図は、本発明の他の実施態様を示す要部断面図であ
る。２８は／漬イブ内に挿入したらせん枕板でち′す、
このらせん枕板の一端にプーリー又は歯車３３を取９つ
けると共に、各々のプーリー又は歯車をスチールワイヤ
やチェイン８５等で連結し、モーター３６および駆動用
プーリー又は歯車３４にて、らせん枕板２８を回転でき
るようにしている。また、この時のらせん枕板は半回転
以上可能な構造とし、パイプ内面全周をスライドできる
ようにしている。なお、らせん枕板の回転用には、スチ
ールベルトがけのプーリーが良く、また、各プーリーに
一回転スチールベルトを巻きつけ１ケ所固定した後、次
のプーリーと連結した方が管体の熱膨張分を見込んで連
結してもすべる事もなくまた円滑な回転が得られる。本
実施例では、モーター駆動による自動の場合を示したが
、もちろん手動にても可能である。FIG. 6 is a sectional view of a main part showing another embodiment of the present invention. 28 is made of a spiral pillow plate inserted into the dipping tube.
A pulley or gear 33 is attached to one end of this spiral pillow board, and each pulley or gear is connected with a steel wire or chain 85, and a motor 36 and a driving pulley or gear 34 drive the spiral pillow board 28. It allows it to rotate. In addition, the spiral pillow plate at this time has a structure that allows it to rotate more than half a turn, so that it can slide around the entire inner circumference of the pipe. In addition, for rotating the spiral pillow plate, it is better to use a pulley with a steel belt attached.Also, it is better to wrap a steel belt around each pulley once, fix it in one place, and then connect it to the next pulley to reduce the thermal expansion of the pipe body. Even if you connect them with a certain amount of time in mind, they will not slip and will rotate smoothly. In this embodiment, the case of automatic operation by motor drive is shown, but of course manual operation is also possible.
上記実施例では、第２燃焼室１１の土壁部を下方に突き
出すことにより邪魔板４１を形成したが−この場合には
邪魔板４１の内部を外気が流れ、邪魔板４１の伝熱面積
化および冷却化を図ることができる。なお、このほか、
耐火材を第２燃焼室１１の上部に取付けることにより邪
魔板を構成してもよい。また、邪魔板４１を第７図に示
すごとく第２燃焼室１１の上下壁から交互に複数個突設
すれば、さらに燃焼反応が促進される。上記実施例のよ
うに熱交換室２１が第２燃焼室１１の上部にあって、ガ
ス流が第２燃焼室１１を出て上昇し、熱交換室２１に入
るようなタイプでは、最後段の邪魔板４１ａを上部より
垂下させ、ガス流を下向きにするのが好ましい。In the above embodiment, the baffle plate 41 was formed by protruding the earthen wall portion of the second combustion chamber 11 downward; however, in this case, outside air flows inside the baffle plate 41, and the heat transfer area of the baffle plate 41 is increased. and cooling can be achieved. In addition to this,
The baffle plate may be configured by attaching a refractory material to the upper part of the second combustion chamber 11. Furthermore, if a plurality of baffle plates 41 are alternately provided protruding from the upper and lower walls of the second combustion chamber 11 as shown in FIG. 7, the combustion reaction will be further promoted. In the above-mentioned embodiment, in which the heat exchange chamber 21 is located above the second combustion chamber 11 and the gas flow leaves the second combustion chamber 11 and rises and enters the heat exchange chamber 21, It is preferable that the baffle plate 41a hangs down from the top so that the gas flow is directed downward.
以上のように、本発明によれば第２燃焼室の上部に邪魔
板を設けたので、デッドスペースとなっていた第２燃焼
室下部にまで火炎が回り込み、燃焼反応が促進され、第
２燃焼室内での完全燃焼化、ＣＯ量の低減を図ることが
できるとともに、第２燃焼室を小型化することができる
。また、第２燃焼室丙での燃焼ガスの乱流化によって、
第２燃焼室の伝熱効率が大巾向上する。さらに、燃焼ガ
ス中のダストは、遠心力とガス流速効果により、邪魔板
以降分離され、第２燃焼室下部へのダスト捕集が可能と
なり、熱交換パイプへのダスト付着を軽減できる。As described above, according to the present invention, since the baffle plate is provided at the upper part of the second combustion chamber, the flame goes around to the lower part of the second combustion chamber, which was a dead space, and the combustion reaction is promoted. Complete combustion indoors and a reduction in the amount of CO can be achieved, and the second combustion chamber can be downsized. In addition, due to the turbulent flow of combustion gas in the second combustion chamber C,
The heat transfer efficiency of the second combustion chamber is greatly improved. Furthermore, the dust in the combustion gas is separated from the baffle plate due to the centrifugal force and the gas flow rate effect, making it possible to collect the dust in the lower part of the second combustion chamber, thereby reducing dust adhesion to the heat exchange pipe.
第１図は本発明にかかる固形燃料用燃焼装置の一例の縦
断面図、第２図は第１図の■−■線断面図、第８図は第
１図の■−■線断面図、第４図はらせん枕板の一例を示
す説明図、第５図、第６図はらせん枕板の適用例の要部
断面図、第７図は本発明の他の実施例の要部断面図であ
る。
４・・・第１燃焼室、 １１・・・第２燃焼室、 ２１
・・・熱交換室、 ２２・・・熱交換パイプ、 ４ｏ・
・・連通部、 ４１・・・邪魔板。
特 許 出 願 人 株式会社神戸製鋼所代 理 人
弁理士 前出 葆 ほか２名第２図
１
第３図
Ｉｆ！４図
第６図
第７図
２FIG. 1 is a longitudinal cross-sectional view of an example of a solid fuel combustion device according to the present invention, FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1, and FIG. 8 is a cross-sectional view taken along the line ■-■ in FIG. FIG. 4 is an explanatory diagram showing an example of a spiral pillow board, FIGS. 5 and 6 are a sectional view of a main part of an application example of a spiral pillow board, and FIG. 7 is a sectional view of a main part of another embodiment of the present invention. It is. 4...First combustion chamber, 11...Second combustion chamber, 21
...Heat exchange chamber, 22...Heat exchange pipe, 4o.
...Communication part, 41...Baffle plate. Patent Applicant Kobe Steel Co., Ltd. Agent Patent Attorney Mr. Maeda and 2 others Figure 2 1 Figure 3 If! Figure 4 Figure 6 Figure 7 Figure 2
Claims (3)
と、第１燃焼室と連通し、二次空気が供給される筒状の
第２燃焼室と、第２燃焼室と連通ずる多数の熱交換パイ
プを配設した熱交換室とを備え、上記第？燃焼室の上部
より邪魔板を垂設したことを特徴とする固形燃料用燃焼
装置。(1) A first combustion chamber to which solid fuel and primary air are supplied, a cylindrical second combustion chamber that communicates with the first combustion chamber and is supplied with secondary air, and a number of units that communicate with the second combustion chamber. It is equipped with a heat exchange chamber equipped with heat exchange pipes, and A solid fuel combustion device characterized by having a baffle plate hanging from the top of a combustion chamber.
、第１燃焼室と第２燃焼室との連通部の口径より大きく
したことを特徴とする特許請求の範囲第１項記載の固形
燃料用燃焼装置。(2) Claim 1, characterized in that the distance between the lower end of the baffle plate and the bottom of the second combustion chamber is larger than the diameter of the communication portion between the first combustion chamber and the second combustion chamber. Combustion device for solid fuel as described.
とを特徴とする特許請求の範囲第１項又は第２項記載の
固形燃料用燃焼装置。(3) The solid fuel combustion device according to claim 1 or 2, wherein the baffle plate is provided in the center of the second combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13185581A JPS5833004A (en) | 1981-08-21 | 1981-08-21 | Combustion device for solid fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13185581A JPS5833004A (en) | 1981-08-21 | 1981-08-21 | Combustion device for solid fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5833004A true JPS5833004A (en) | 1983-02-26 |
Family
ID=15067693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13185581A Pending JPS5833004A (en) | 1981-08-21 | 1981-08-21 | Combustion device for solid fuel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5833004A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0915289A3 (en) * | 1997-11-04 | 1999-10-13 | Pyro Industries, Inc. | Pellet fuel burner for heating and drying systems |
| WO2009043211A1 (en) * | 2007-09-29 | 2009-04-09 | Zhanbin Che | Solid fuel combustion furnace |
| WO2015113513A1 (en) * | 2014-01-30 | 2015-08-06 | 车战斌 | Combustion method and combustion apparatus for solid fuel |
| WO2015113512A1 (en) * | 2014-01-30 | 2015-08-06 | 车战斌 | Combustion method and combustion apparatus for solid fuel |
| WO2015131817A1 (en) * | 2014-03-05 | 2015-09-11 | 车战斌 | Combustion method and combustion apparatus for solid fuel |
| WO2015131786A1 (en) * | 2014-03-05 | 2015-09-11 | 车战斌 | Combustion method and combustion apparatus for solid fuel |
| WO2015131820A1 (en) * | 2014-03-05 | 2015-09-11 | 车战斌 | Method and apparatus for burning solid fuel |
| CN105090936A (en) * | 2014-05-23 | 2015-11-25 | 车战斌 | Combustion method and device for solid fuel and ignition method of combustion device |
| WO2016183849A1 (en) * | 2015-05-21 | 2016-11-24 | 车战斌 | Flow guide wall, and combustion device for solid fuel |
-
1981
- 1981-08-21 JP JP13185581A patent/JPS5833004A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0915289A3 (en) * | 1997-11-04 | 1999-10-13 | Pyro Industries, Inc. | Pellet fuel burner for heating and drying systems |
| WO2009043211A1 (en) * | 2007-09-29 | 2009-04-09 | Zhanbin Che | Solid fuel combustion furnace |
| WO2015113513A1 (en) * | 2014-01-30 | 2015-08-06 | 车战斌 | Combustion method and combustion apparatus for solid fuel |
| WO2015113512A1 (en) * | 2014-01-30 | 2015-08-06 | 车战斌 | Combustion method and combustion apparatus for solid fuel |
| WO2015131817A1 (en) * | 2014-03-05 | 2015-09-11 | 车战斌 | Combustion method and combustion apparatus for solid fuel |
| WO2015131786A1 (en) * | 2014-03-05 | 2015-09-11 | 车战斌 | Combustion method and combustion apparatus for solid fuel |
| WO2015131820A1 (en) * | 2014-03-05 | 2015-09-11 | 车战斌 | Method and apparatus for burning solid fuel |
| CN105090936A (en) * | 2014-05-23 | 2015-11-25 | 车战斌 | Combustion method and device for solid fuel and ignition method of combustion device |
| WO2015176619A1 (en) * | 2014-05-23 | 2015-11-26 | 车战斌 | Solid fuel combustion method, combustion device, and ignition method therefor |
| WO2016183849A1 (en) * | 2015-05-21 | 2016-11-24 | 车战斌 | Flow guide wall, and combustion device for solid fuel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1020655C (en) | Gas element for burner | |
| CN105889901B (en) | A kind of fixed grate boiler for the square bale stalk that burns | |
| US4836115A (en) | Vertical furnace | |
| CN101586805B (en) | Combustion device for biomass granular fuel | |
| JPS5833004A (en) | Combustion device for solid fuel | |
| US4856438A (en) | Furnace | |
| RU2702066C1 (en) | Heat-generating plant with heat generator and continuous fuel supply bunker, which implement wood wastes burning method | |
| RU104668U1 (en) | AUTOMATED COAL BOILER | |
| PL138204B1 (en) | Heating furnace adapted to be fired with agglomerated fuels | |
| US4020822A (en) | Multi-fuel forced air furnace | |
| EP0055755B1 (en) | Heating boiler | |
| CN102261739B (en) | Biomass energy hot blast stove | |
| CN109307260A (en) | Straw particle burning machine | |
| CN109114542A (en) | It is particularly suitable for the gasification installation of the self-feeding, entire bundle burning of plant haulm etc. | |
| CN100478612C (en) | Circulating fluidized bed combustion device and its combustion method | |
| RU2189526C1 (en) | Method of burning waste wood and device for method embodiment with combustion chamber and method of lining | |
| RU2452905C2 (en) | Water-heating boiler and method of its operation | |
| CN207610378U (en) | A kind of biomass heating furnace | |
| JPS5938524A (en) | Fuel automatic boiler device | |
| CN204678386U (en) | Biomass fuel boiler | |
| SU1476246A1 (en) | Boiler | |
| RU2361154C1 (en) | Method of heat transfer | |
| CN102393069B (en) | Gas-solid mixing combustion hot-air oven with double towers and double furnace cavities | |
| CN107101367A (en) | A kind of hot-water boiler | |
| CN108954296B (en) | A kind of coal-gas burning dual-purpose boiler |