JPH0275856A - Hot blow room heater - Google Patents
Hot blow room heaterInfo
- Publication number
- JPH0275856A JPH0275856A JP22677388A JP22677388A JPH0275856A JP H0275856 A JPH0275856 A JP H0275856A JP 22677388 A JP22677388 A JP 22677388A JP 22677388 A JP22677388 A JP 22677388A JP H0275856 A JPH0275856 A JP H0275856A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- combustion chamber
- plate
- cylinder
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 66
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 11
- 239000000567 combustion gas Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は燃焼室及びこれに接続した熱交換器により燃焼
空気と循環空気との間の熱交換を行わせる温風暖房機に
関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a hot air heater that exchanges heat between combustion air and circulating air using a combustion chamber and a heat exchanger connected to the combustion chamber.
(従来の技術)
上述する温風暖房機として公知のものに、実公昭58−
42758号公報に開示されてなる構造があり、これは
プレート形熱交換器を垂直かつ前後の並列に配列して排
気ガスを昇流、降流が交互に行われるようジグザグ接続
方式をとっている。(Prior art) The above-mentioned hot air heater is known as a hot air heater.
There is a structure disclosed in Japanese Patent No. 42758, in which plate heat exchangers are arranged vertically and in parallel in the front and back, and a zigzag connection method is used so that the exhaust gas is alternately ascended and descended. .
(発明が解決しようとする課!り
この従来装置は第4図に略示される形態をなすものであ
って、熱交換器(2)′に対し単に気流を当てるだけの
構造で、燃焼室(1)と熱交換器(2)′との接続部が
燃焼排ガスの乱流拡散により高温を呈しているにもかか
わらず、平均的な送風しか行っていなくて局部過熱が生
じ易く耐久性に問題があった。(The problem to be solved by the invention!) This conventional device has the form shown schematically in FIG. Even though the connection between 1) and heat exchanger (2)' is at high temperature due to turbulent diffusion of combustion exhaust gas, only average air is being blown, which tends to cause local overheating, resulting in durability problems. was there.
最近は殊に燃焼室及び熱交換器を同一人力、同一冷却風
量の条件下において小形化させることが要望されている
が、これは燃焼室壁、熱交換器の温度が高くなるために
、800〜850℃で加熱される燃焼室壁及び熱交換器
の接続部は、たとえ燃焼ガスを迂回して排気させるべく
パンフル板を燃焼室内に設ける工夫を施したとしても温
度低下は525℃前後以下に冷却することができなくて
、機器の耐熱寿命をより短くする結果となり、従って根
本的な改善策をとらない限り、今以上のコンパクト化は
到底望めないのが実状である。Recently, there has been a demand for downsizing the combustion chamber and heat exchanger under the conditions of the same human power and the same cooling air volume. The temperature of the combustion chamber walls and heat exchanger connections, which are heated at ~850°C, will not drop to around 525°C even if a panfer plate is installed inside the combustion chamber to bypass and exhaust the combustion gas. The inability to cool the equipment shortens the heat-resistant life of the equipment, and the reality is that unless fundamental improvements are taken, further compactness cannot be expected.
このように種々の解決すべき問題を従来のものが有して
いる実状に鑑みて本発明は成されたものであり、特に空
気対空気形の熱交換器の構造、配置形態に改善を加える
ことによって、コンパクトな構造上の利点と熱交換効率
の向上による運転経済性とを併せはからせる点を発明の
目的とする。The present invention has been made in view of the fact that conventional heat exchangers have various problems to be solved, and particularly improves the structure and layout of air-to-air heat exchangers. It is therefore an object of the invention to combine the advantages of a compact structure with the operational economy due to improved heat exchange efficiency.
(課題を解決するための手段)
しかして本発明は上記目的を達成するために、請求項1
においては、燃焼室(1)及び該燃焼室(1)に止結し
て並置した熱交換器(2)をケーシング(3)内の循環
空気通路中に配設した温風暖房機であって、前記熱交換
器(2)が、燃焼室(1)の排気口(4)に接続し、か
つ順次遠去からせて所定長延長した遮熱筒(5)と、こ
の遮熱筒(5)に直交させて相互に熱交換板面が平行と
なる並列関係をなすとともに、各一端部が重なり合って
前記遮熱筒(5)に対し同軸の二重筒を形成する如く囲
繞した配置をなす3個以上奇数個のプレート形熱交換器
(6B )、(6B )、(6C )とを備えていて、
それ等プレート形熱交換器(6B)、(6B )。(Means for Solving the Problems) In order to achieve the above object, the present invention has the following features:
is a hot air heater in which a combustion chamber (1) and a heat exchanger (2) connected to and arranged in parallel with the combustion chamber (1) are arranged in a circulating air passage in a casing (3). , the heat exchanger (2) is connected to the exhaust port (4) of the combustion chamber (1), and has a heat shield tube (5) extended by a predetermined length from a distance one after another; ) are arranged in parallel so that the heat exchange plate surfaces are parallel to each other, and each end is overlapped to form a coaxial double cylinder with respect to the heat shield cylinder (5). Equipped with three or more odd number plate heat exchangers (6B), (6B), (6C),
They are plate heat exchangers (6B), (6B).
(6B)は、遮熱筒(5)の先端開口部と、燃焼室(1
)に対し最も遠い位置のプレート形熱交換器(6A)に
おける遮熱筒(5)を包囲する前記一端部とが連結され
、この熱交換器(6A)の他端部と第2番目に遠いプレ
ート形熱交換器(6B)の他端部とが連結され、さらに
、このプレート形熱交換器(6B)と第3番目に遠いプ
レート形熱交換器(6C)との遮熱筒(5)を包囲する
各一端部相互が連結されて、順次同要領により連結され
るとともに、燃焼室(1)に最も近いプレート形熱交換
器(6C)の他端部が排気筒(8)を接続するための接
続口(7)に形成されてなることを特徴とする。(6B) is the tip opening of the heat shield cylinder (5) and the combustion chamber (1
) is connected to the one end surrounding the heat shield cylinder (5) of the plate heat exchanger (6A) located at the farthest position, and the other end of this heat exchanger (6A) and the second furthest end The other end of the plate heat exchanger (6B) is connected to the heat shield cylinder (5) between this plate heat exchanger (6B) and the third farthest plate heat exchanger (6C). The ends surrounding the combustion chamber (1) are connected to each other in the same way, and the other end of the plate heat exchanger (6C) closest to the combustion chamber (1) connects to the exhaust stack (8). It is characterized in that it is formed in a connection port (7) for.
また、請求項2においては、熱交換器(2)が燃焼室(
1)に対し側方に並置されてなり、各プレート形熱交換
器(6A )、(6B )、(6C)・・・を遮熱筒(
5)から離れた位置の各他端部が遮熱筒(5)からの垂
線に対し遠去かってなる逆■字形に配設せしめた構成が
請求項1の発明に特定されるものである。Further, in claim 2, the heat exchanger (2) is configured to include a combustion chamber (
1), and each plate type heat exchanger (6A), (6B), (6C)... is connected to a heat shield cylinder (
The invention of claim 1 specifies the structure in which each other end portion at a position away from the heat shield tube (5) is arranged in an inverted square shape, which is far away from the perpendicular line from the heat shield tube (5).
さらに請求項3の発明は、燃焼室(1)の排気口(4)
に接続させる遮熱筒(5)の端部に、外方の直角方向に
出張らせた鍔(2)を有する接続部が形成され、−方、
燃焼室(1)に最も近いプレート形熱交換器(6゜)の
遮熱筒(5)を包囲する一端部に、前記鍔α階と排気口
(4)の周壁とで挟まれる鍔t2Φを内方の直角方向に
折込ませて有する接続部が形成され、それ等両接続部が
共締めにより燃焼室(1)に固着される構成が請求項1
又は2の発明に特定されるものである。Furthermore, the invention of claim 3 provides an exhaust port (4) of the combustion chamber (1).
A connecting part having a collar (2) protruding outward in a right angle direction is formed at the end of the heat shielding cylinder (5) to be connected to the - direction,
At one end surrounding the heat shield cylinder (5) of the plate heat exchanger (6°) closest to the combustion chamber (1), a flange t2Φ sandwiched between the flange α level and the peripheral wall of the exhaust port (4) is installed. Claim 1 has a structure in which a connecting portion is formed by folding inward in a right angle direction, and both connecting portions are fixed to the combustion chamber (1) by tightening together.
Or it is specified in invention 2.
(作用)
燃焼室(1)の排気口(4)を出る高温ガス(A)(第
3図参照)は遮熱筒(5)を通って先端開口部から出る
が、この後、最も遠いプレート形熱交換器(6A)から
順に遠い方の熱交換器(68)を経、燃焼室(1)に最
も近い熱交換器(6C)に迂回し排気されるようになる
。(Function) High-temperature gas (A) (see Figure 3) exiting the exhaust port (4) of the combustion chamber (1) passes through the heat shield cylinder (5) and exits from the tip opening. The heat exchanger (6A) passes through the heat exchanger (68) farther from the combustion chamber (1), and is then bypassed and exhausted to the heat exchanger (6C) closest to the combustion chamber (1).
従って、遮熱筒(5)内を流れる高温ガスは、対流風量
によって熱交換し温度が下げられた各熱交換器(6B
)、(6C)・・・内の自身の燃焼ガス(E) 、 (
P)によって遮熱筒(5)の壁を介して熱交換するので
、温度がある程度下げられて先端開口部での燃焼ガスC
B)は800℃の温度から774℃程度までになる。Therefore, the high temperature gas flowing inside the heat shield cylinder (5) exchanges heat with the convection air volume and the temperature is lowered by each heat exchanger (6B).
), (6C)... own combustion gas (E), (
P) exchanges heat through the wall of the heat shield cylinder (5), so the temperature is lowered to some extent and the combustion gas C at the tip opening is
B) ranges from a temperature of 800°C to about 774°C.
このように排ガスの流れを特定することにより、燃焼室
(1)の高さ、横断面積を大きくすることなく熱交換器
(2)に対する入口温度を下げ得る。By specifying the flow of exhaust gas in this way, the inlet temperature to the heat exchanger (2) can be lowered without increasing the height or cross-sectional area of the combustion chamber (1).
また、空気側の垂直上昇気流に対して、熱交換器(2)
が斜めに交叉し得る逆V字状に配設されているので空気
流を収斂させる作用を成して気流との接触時間が長くな
ると共に、風向板を兼用し得て熱交換効率を高く保持す
ることが可能である。In addition, for the vertical upward airflow on the air side, the heat exchanger (2)
Since they are arranged in an inverted V shape that can intersect diagonally, they act to converge the airflow, prolonging the contact time with the airflow, and can also serve as a wind direction plate, maintaining high heat exchange efficiency. It is possible to do so.
さらに空気流に対して熱交換器(2)内の燃焼排ガスが
並行流と対向流とを伴う斜め交叉となり接することがら
熱交換効率をより向上させ得る。Furthermore, since the combustion exhaust gas in the heat exchanger (2) contacts the air flow in a diagonal crossing with parallel flow and counter flow, the heat exchange efficiency can be further improved.
また、遮熱筒(5)は燃焼室(1)に最も近いプレート
形熱交換器(6C)の一端部に同軸に囲繞されるととも
に接続部分の鍔α罎がプレート形熱交換器(6C)の鍔
+210と共締めで燃焼室(1)の排気口(4)周壁に
固着された構造となすことによって、排気口(4)との
接続部は簡単な構造となるとともにシール構造について
もガスケットの共通化が可能で簡単、確実性の高いもの
が得られる。In addition, the heat shield cylinder (5) is coaxially surrounded by one end of the plate heat exchanger (6C) closest to the combustion chamber (1), and the flange α of the connection part is connected to the plate heat exchanger (6C). By making the structure fixed to the peripheral wall of the exhaust port (4) of the combustion chamber (1) by tightening it together with the flange +210, the connection part with the exhaust port (4) has a simple structure, and the seal structure also requires a gasket. It is possible to standardize, easily, and highly reliable.
(実施例)
以下、本発明の1実施例を添付図面にもとづいて説明す
る。(Example) Hereinafter, one example of the present invention will be described based on the accompanying drawings.
第2図は本発明の例に係る冷温風吹出形冷暖房機であっ
て、縦長で据置形のケーシング(3)は、前面下部に吸
込グリル(9)、前面上部に吹出グリルαのを夫々設け
ているとともに、内部を上下に3段の3室に区切らせて
、下室には対流ファンαυ、オイルレベル(ロ)、バー
ナ01を収設し、中室には前記バーナa(至)の炎口に
臨む燃焼室(1)とその側部に設けた熱交換機(2)を
収設し、さらに吹出グリルαωに臨ませた上室には冷房
用熱交換器Oa及びコントロール部αωを収設しており
、対流ファンαυを駆動すると、吸込グリル(9)から
空気が吸込まれて、エアフィルタαQで除塵された空気
は対流ファンαυ、バーナα簿の周囲、燃焼室(1)と
熱交換器(2)の周囲、冷房用熱交換器α船の周囲を順
に経、吹出グリルaφから吹出されるようになり、冷房
時は冷房用熱交換器α0のコイルに冷却用媒体が送り込
まれるために空気は冷却されて冷風となり吹出グリルα
のから室内に送出される。FIG. 2 shows a cold/hot air blowing air conditioner according to an example of the present invention, in which a vertically long stationary casing (3) is provided with a suction grill (9) at the lower front and an outlet grill α at the upper front. At the same time, the interior is divided into 3 chambers in 3 stages above and below, the lower chamber houses the convection fan αυ, oil level (B), and burner 01, and the middle chamber houses the burner A (to). The combustion chamber (1) facing the flame outlet and the heat exchanger (2) installed on the side thereof are housed, and the upper chamber facing the outlet grille αω houses the cooling heat exchanger Oa and the control unit αω. When the convection fan αυ is driven, air is sucked in from the suction grill (9), and the air, dust removed by the air filter αQ, is transferred to the convection fan αυ, the area around the burner α, and the combustion chamber (1). The cooling medium passes around the exchanger (2), around the cooling heat exchanger α, and is blown out from the outlet grille aφ, and during cooling, the cooling medium is sent to the coil of the cooling heat exchanger α0. Therefore, the air is cooled and becomes cold air at the outlet grill α.
It is sent indoors from there.
一方、暖房時はバーナα湯の燃焼運転により、空気は燃
焼室(1)、熱交換器(2)で加熱され温風となって室
内に送出される。On the other hand, during heating, air is heated in the combustion chamber (1) and heat exchanger (2) by the combustion operation of the burner α hot water, and is sent into the room as warm air.
この場合、中室に臨ませて開閉可能な温風吹出グリル(
図示せず)を追設して、上室と中室との仕切り部を遮断
し、温風を開放した温風吹出グリルから送出させるよう
にしても良い。In this case, a warm air outlet grill (which can be opened and closed) facing the middle room (
(not shown) may be added to block the partition between the upper chamber and the middle chamber, and hot air may be sent out from the open hot air blowing grill.
しかして上記バーナα萄は、オイルレベル(2)の出口
に油溜め部が接続されているととにもに、給気口に対し
て給排気筒α力から延びる給気管a鴫が接続されていて
、燃焼用空気として室外空気が供給され、かつ燃料とし
ては、図示しない屋外タンク内の灯油がオイルレベル(
2)を経由して供給される。In the burner α, an oil reservoir is connected to the outlet of the oil level (2), and an air supply pipe extending from the air supply and exhaust pipe α is connected to the air supply port. Outdoor air is supplied as combustion air, and kerosene in an outdoor tank (not shown) is used as fuel to meet the oil level (
2).
一方、燃焼室+1)は側壁上部に燃焼ガスを送出させる
排気口(4)を設けていて、この排気口(4)に熱交換
器(2)を接続しており、さらに熱交換器(2)の終端
部である接続口(7)を排気筒(8)を介して給排気筒
αηに連結せしめて、燃焼後の排ガスは室内に流入しな
いように全量戸外に排出させるよう形成していて、この
ようにして室内空気を燃焼空気によって汚染させること
のない、所謂、クリーン燃焼・排気形の暖房運転が可能
である。On the other hand, the combustion chamber +1) is provided with an exhaust port (4) at the top of the side wall to send out the combustion gas, and a heat exchanger (2) is connected to this exhaust port (4). ) is connected to the air supply/exhaust pipe αη via the exhaust pipe (8), so that the entire amount of exhaust gas after combustion is discharged outdoors without flowing into the room. In this way, it is possible to perform a so-called clean combustion/exhaust type heating operation without contaminating the indoor air with combustion air.
しかして上記熱交換器(2)は第1図に構造を示してい
る通り、前記排気口(4)に直接接続して排気管を兼ね
させた遮熱筒(5)と、この遮熱筒(5)に直列に接続
した奇数個、例えば3個のプレート形熱交換器(6A)
〜(6B)とからなっている。As shown in FIG. 1, the heat exchanger (2) includes a heat shield tube (5) that is directly connected to the exhaust port (4) and also serves as an exhaust pipe, and (5) An odd number, e.g. 3 plate heat exchangers (6A) connected in series
It consists of ~(6B).
遮熱筒(5)は前記排気口(4)から燃焼室(1)の壁
に対し直角に所定長延長させて排気口(4)から順次遠
去からせた水平方向に配設している。The heat shield cylinder (5) extends from the exhaust port (4) by a predetermined length perpendicularly to the wall of the combustion chamber (1) and is arranged in a horizontal direction sequentially moving away from the exhaust port (4). .
一方、各プレート形熱交換器(6A)〜(6C)は、扁
平で例えば長円形をなす合わせ構造のクラム形と称され
る熱交換器であって、長径側の両端部中央部分に接続口
が夫々開口されており、上部側の一端部には両面に接続
口が、下部側の他端部には片面に接続口が夫々設けられ
ている。On the other hand, each of the plate-type heat exchangers (6A) to (6C) is a so-called clam-type heat exchanger that has a flat, e.g., oval, mating structure, and has connection ports at the center of both ends on the long diameter side. are opened, and one end on the upper side is provided with a connection port on both sides, and the other end on the bottom side is provided with a connection port on one side.
そして各熱交換器(6A)〜(6B)は、熱交換板面が
互いに平行となる並列状に配置されてなるとともに、同
一側の各一端部が同軸的に重ね合わされるようになって
、前記遮熱筒(5)に対し同軸の二重筒を形成する如く
配設せしめて、全体として遮熱筒(5)に直交叉し、燃
焼室(1)の側壁に対して平行をなして近設せしめられ
る。The heat exchangers (6A) to (6B) are arranged in parallel so that the heat exchange plate surfaces are parallel to each other, and one end of each of the same side is coaxially overlapped. The heat shield tube (5) is arranged so as to form a coaxial double tube, so that the tube is perpendicular to the heat shield tube (5) as a whole and parallel to the side wall of the combustion chamber (1). It will be installed nearby.
それ等各熱交換器(6B)〜(6B)の配置及び接続形
態は第3図を併せ参照すれば明らかな如く、燃焼室(1
)に最も近い位置のプレート形熱交換器(6、)は、上
部側の一端部を対向する2つの接続口を利用して遮熱筒
(5)に嵌合して、一方の接続口を遮熱筒(5)の端部
と一緒に排気口(4)の周壁に固着せしめており、下部
側の他端部がケーシング(3)の背面板側に近寄るよう
に前傾姿勢をとらせ垂設させている。The arrangement and connection form of each of the heat exchangers (6B) to (6B) are as clear from FIG.
) The plate heat exchanger (6,) located closest to It is fixed together with the end of the heat shield cylinder (5) to the peripheral wall of the exhaust port (4), and is tilted forward so that the other end on the lower side approaches the back plate side of the casing (3). It is installed vertically.
ところで、遮熱筒(5)の接続端部は筒の端から外方の
直角方向に出張らせた鍔0埠を有する接続部構造を成し
、一方、上記プレート形熱交換器(6C)の接続部は口
端から内方の直角方向に折込ませてなる鍔QΦを有する
構造であって、この鍔(2(Oをガスケラ) (21)
を介して排気口(4)の周壁に密着するとともに、遮熱
筒(5)の鍔(19)を前記鍔(21に合着せしめて、
複数個のビスを用いて両鍔αΦ、(21を燃焼室(1)
の側壁に共締めで固着せしめている。By the way, the connection end of the heat shield cylinder (5) has a connection structure having a flange protruding outward from the end of the cylinder at right angles, while the plate heat exchanger (6C) The connecting part has a structure with a tsuba QΦ that is folded inward from the mouth end in a right angle direction, and this tsuba (2 (O is Gaskera)) (21)
The heat insulating cylinder (5) is brought into close contact with the peripheral wall of the exhaust port (4) via the flange (19) and the flange (21) is joined to the flange (21).
Use multiple screws to connect both tsuba αΦ, (21 to combustion chamber (1)
It is fixed to the side wall of the
かくすることにより、気密接続を要するのは、ガスケッ
ト(21)を介した燃焼室(1)側壁とプレート形熱交
換器(6B)の前記鍔QΦとの間であって、両鍔αl、
!21の間は、遮熱筒(5)自体がプレート形熱交換器
(6C)における一端部によって包囲されている関係上
、厳密な気密接続を必要としないことは言うまでもない
。As a result, an airtight connection is required between the side wall of the combustion chamber (1) via the gasket (21) and the flange QΦ of the plate heat exchanger (6B), and both the flange αl,
! 21, it goes without saying that a strict airtight connection is not required since the heat shield cylinder (5) itself is surrounded by one end of the plate heat exchanger (6C).
このようにして配設した熱交換器(6B)に対してプレ
ート形熱交換器(6B)を接続させるが、この熱交換器
(6B)は上部側の一端部を対向する2つの接続口を利
用して遮熱筒(5)に嵌合して、一方の接続口とプレー
ト形熱交換器(6C)の突合わさっている接続口とを気
密に接続せしめて互いに固着させる。A plate heat exchanger (6B) is connected to the heat exchanger (6B) arranged in this way, and this heat exchanger (6B) has two connection ports facing each other at one end on the upper side. The heat shield tube (5) is fitted into the heat shield tube (5) to airtightly connect one connection port and the abutting connection port of the plate heat exchanger (6C) and fix them to each other.
その際、上記熱交換器(6B)は下部側の他端部がケー
シング(3)の前面板側に近寄るように後傾姿勢をとら
せ垂設させる。At this time, the heat exchanger (6B) is vertically tilted backward so that the other end of the lower portion approaches the front plate side of the casing (3).
か(することにより、再熱交換器(6B)、(6C)は
側面方向から見た逆V字状の形態となるとともに、気流
に対し直列関係をなして結合している。As a result, the reheat exchangers (6B) and (6C) have an inverted V-shape when viewed from the side, and are connected in series with the air flow.
そして、この2番目に遠い位置に存するプレート形熱交
換器(6B)の未接続側の接続口に所定長の連結筒(2
2)を接続して、遮熱筒(5)に対し同心の外筒に形成
せしめる。Then, a connecting tube (2
2) are connected to form an outer cylinder concentric with the heat shield cylinder (5).
次に燃焼室(1)に対し最も遠い位置関係となる3つ目
のプレート形熱交換器(6A)を、上部側の一端部が遮
熱筒(5)の先端開口部に覆い被さるようにして、一方
の接続口を前記先端開口部の仕切板(23)に気密接続
すると同時に、前記連結筒(22)にも゛気密接続せし
めて前記プレート形熱交換器(6B)に相対するよう前
傾姿勢をとらせ垂設し固着せしめる。Next, place the third plate heat exchanger (6A), which is located farthest from the combustion chamber (1), so that one end of the upper side covers the tip opening of the heat shield cylinder (5). Then, one of the connection ports is airtightly connected to the partition plate (23) of the tip opening, and at the same time, the connection tube (22) is also airtightly connected so as to face the plate heat exchanger (6B). Set it in a tilted position and hang it upright.
なお、遮熱筒(5)を延長した位置でその先端開口部に
対向してなる今一つの接続口は蓋(24)を取着して通
常は閉止しておき、遮熱筒(5)点検の際のサービス口
として利用させるようにしている。Note that the other connection port located opposite the opening at the tip of the heat shield tube (5) at the extended position is normally closed with a lid (24) attached, and the heat shield tube (5) is inspected. We are trying to have them use it as a service point when they need it.
そして、上記熱交換器(6^)の下部側の接続口と前記
熱交換器(61)の同じく接続口とを連結筒(25)に
より気密接続せしめる。Then, the connection port on the lower side of the heat exchanger (6^) and the same connection port of the heat exchanger (61) are airtightly connected by the connection tube (25).
かく構成した熱交換器(2)は、燃焼室(1)に最も近
い位置に存するプレート形熱交換器(6C)の他端側に
設けた接続口(7)を排気筒(8)に接続せしめるので
あって、かくして燃焼室(1)内の800℃の燃焼空気
は排気口(4)から遮熱筒(5)内を通り抜けて最遠位
置のプレート形熱交換器(6A)に流れ込み、この流れ
込む時点では遮熱筒(5)の周りを流れる自身の燃焼空
気と熱交換して774℃に温度低下する。The thus configured heat exchanger (2) connects the connection port (7) provided at the other end of the plate heat exchanger (6C) located closest to the combustion chamber (1) to the exhaust stack (8). Thus, the combustion air at 800°C in the combustion chamber (1) passes through the heat shield cylinder (5) from the exhaust port (4) and flows into the plate heat exchanger (6A) located at the farthest position. At this point in time, the combustion air exchanges heat with its own combustion air flowing around the heat shield cylinder (5), and the temperature drops to 774°C.
そしてこの熱交換器(6A)の他端部における出口では
、さらに周りの流動空気と熱交換して610℃になり連
結筒(25)を通り、プレート形熱交換器(6B)の他
端部における人口では568℃に温度低下し、該熱交換
器(6B)を流通して上部側の一端部に至ったところで
478℃となる。At the outlet at the other end of this heat exchanger (6A), the temperature further exchanges heat with the surrounding flowing air to reach 610°C, passes through the connecting cylinder (25), and exits at the other end of the plate heat exchanger (6B). The temperature decreases to 568° C. at the population, and reaches 478° C. after passing through the heat exchanger (6B) and reaching one end on the upper side.
この478℃の燃焼空気は遮熱筒(5)内の燃焼空気と
当然熱交換して冷却作用をなす。This 478° C. combustion air naturally exchanges heat with the combustion air inside the heat shield cylinder (5) to perform a cooling effect.
次いで最近位置のプレート形熱交換器(6B)の上部側
の一端部に流れ込んで、そのときの温度が445℃とな
った後、このプレート形熱交換器(6゜)の出口となる
接続口(7)では313 、”Cまで温度が下がる。Next, it flows into one end of the upper side of the nearest plate heat exchanger (6B), and after the temperature at that time reaches 445°C, it flows into the connection port that becomes the outlet of this plate heat exchanger (6°). In (7), the temperature drops to 313"C.
そしてこの温度低下した空気は排気筒(8)により室外
に向は排出される。This air whose temperature has decreased is then exhausted to the outside through the exhaust pipe (8).
以上の燃焼空気流通動態から明らかなように、遮熱筒(
5)はその周囲の温度が1段低い自身の空気との間で熱
交換を行うことから、プレート形熱交換器(6A)の入
口の空気温度を低下させることができ、従って燃焼室(
1)及び熱交換器(2)をコンパクトな構造にしながら
熱交換器(2)出口の燃焼空気の温度を従来と同じまで
低下させて循環空気との間の熱交換の効率を従前通り維
持させることができる。As is clear from the above combustion air flow dynamics, the heat shield cylinder (
5) exchanges heat with its own air whose surrounding temperature is one level lower, so it is possible to lower the air temperature at the inlet of the plate heat exchanger (6A), and therefore the temperature of the combustion chamber (
1) and the heat exchanger (2) have a compact structure while lowering the temperature of the combustion air at the outlet of the heat exchanger (2) to the same level as before, maintaining the efficiency of heat exchange with the circulating air as before. be able to.
(発明の効果)
以上詳述した内容から明らかなように、燃焼室(1)か
ら出るガスは内側の遮熱筒(5)を通り、燃焼室(1)
と最も離れた位置のプレート形熱交換器(6A)に送り
込ませ、このガスを各プレート形熱交換器(6B)、(
6C ’)で冷却させながら燃焼室(1)に近い側に戻
し、その過程で内側の遮熱筒(5)とも熱交換させるよ
うに構成したものであるから、燃焼室(1)。(Effects of the invention) As is clear from the details detailed above, the gas coming out of the combustion chamber (1) passes through the inner heat shield cylinder (5) and returns to the combustion chamber (1).
This gas is sent to the plate heat exchanger (6A) located farthest from the plate heat exchanger (6B), (
6C') while returning it to the side closer to the combustion chamber (1), and in the process exchange heat with the inner heat shield cylinder (5), so the combustion chamber (1).
、熱交換器(2)を同一人力、同一冷却量の条件下で小
形化した場合にも燃焼ガスに接する熱交換壁面の温度を
低く抑えることが可能であるとともに、性能を同条件に
維持し得る。Even when the heat exchanger (2) is downsized under the same manpower and cooling amount conditions, it is possible to keep the temperature of the heat exchange wall surface in contact with the combustion gas low, and to maintain the performance under the same conditions. obtain.
また、プレート形熱交換器(6A)〜(6C)の熱交換
面の温度を低く保持できるので長寿命がはかれる。Further, since the temperature of the heat exchange surfaces of the plate heat exchangers (6A) to (6C) can be kept low, a long life can be achieved.
一方、請求項2においては、循環空気の流動経路中に熱
交換器を逆■字形態で配役せしめたから、空気の流れを
集めさせる作用をなし、その結果、空気に対する熱伝達
を高めて、加熱効率を向上し得る。On the other hand, in claim 2, since the heat exchanger is arranged in an inverted ■ shape in the flow path of the circulating air, it has the effect of collecting the air flow, and as a result, heat transfer to the air is increased and heating is achieved. Efficiency can be improved.
また、風の案内作用を熱交換器(2)自体が成すことか
ら、風向板など風誘導のための付設部材を省略し得て簡
易かつコンパクトな装置を提供し得る。Furthermore, since the heat exchanger (2) itself performs the wind guiding function, it is possible to omit attached members for wind guidance such as wind direction plates, and a simple and compact device can be provided.
さらに熱交換器(2)内を流動する燃焼ガスは、循環空
気の流れに対して交叉向流、同左並流を交互に繰り返さ
せているので、熱交換効率が高くなる。Furthermore, since the combustion gas flowing in the heat exchanger (2) alternately repeats a cross-counter flow and a parallel flow with respect to the flow of circulating air, the heat exchange efficiency is increased.
次に請求項3においては、遮熱筒(5)及びこの遮熱筒
(5)を囲繞するプレート形熱交換器(6B)とを共締
め方式によって燃焼室(1)の排気口(4)周壁に固着
するようにしたものであって、個別に気密接続する方式
に較べて、外側のプレート形熱交換器(6、)の接続部
のシールだけを行わせ、遮熱筒(5)側は比較的ラフで
も良くて、接続部の構造は頗る単純化されてしかも気密
性を十分保持することが可能である。Next, in claim 3, the exhaust port (4) of the combustion chamber (1) is connected to the heat shield cylinder (5) and the plate-type heat exchanger (6B) surrounding the heat shield cylinder (5) by co-fastening the heat shield cylinder (5). This type is fixed to the peripheral wall, and compared to a method in which the airtight connection is made individually, only the connection part of the outer plate heat exchanger (6) is sealed, and the heat shield cylinder (5) side is sealed. The connecting portion may be relatively rough, and the structure of the connecting portion can be greatly simplified while maintaining sufficient airtightness.
しかも高温ガスと接する遮熱筒(5)を、プレート形熱
交換器(6A)〜(6C)内に収容した構造であるから
、プレート形熱交換器(6A)〜(6B)が直接高温空
気に接触しなくて長寿命がかはれるとともに、たとえ遮
熱筒(5)から洩れ出すことがあっても二重筒構造であ
るために外部への漏洩を確実に防止し得る。Moreover, since the heat shield cylinder (5) in contact with high-temperature gas is housed within the plate-type heat exchangers (6A) to (6C), the plate-type heat exchangers (6A) to (6B) can directly handle high-temperature gas. Not only does it have a long service life because it does not come into contact with the heat shield tube (5), but even if it leaks from the heat shield tube (5), the double tube structure ensures that leakage to the outside can be prevented.
第1図及び第2図は本発明の実施例に係る要部構造図及
び全体構造図、第3図は同じく要部機構と温度分布の説
明図である。第4図は従来の温風暖房機の要部構造であ
る。
(1)・・・燃焼室、 (2)・・・熱交換器、(3)
・・・ケーシング、 (4)・・・排気口、(5)・・
・遮熱筒、
(6B)〜(6C)・・・プレート形熱交換器、(7)
・・・接続口、 (8)・・・排気筒、α埠、(2
I・・・鍔。
第1図
第2図FIGS. 1 and 2 are structural diagrams of main parts and an overall structural diagram according to an embodiment of the present invention, and FIG. 3 is an explanatory diagram of the main parts mechanism and temperature distribution. Figure 4 shows the main structure of a conventional hot air heater. (1)... Combustion chamber, (2)... Heat exchanger, (3)
...Casing, (4)...Exhaust port, (5)...
・Heat shield tube, (6B) to (6C)...Plate heat exchanger, (7)
... Connection port, (8) ... Exhaust pipe, α Pier, (2
I... Tsuba. Figure 1 Figure 2
Claims (1)
た熱交換器(2)をケーシング(3)内の循環空気通路
中に配設した温風暖房機であって、前記熱交換器(2)
が、燃焼室(1)の排気口(4)に接続し、かつ順次遠
去からせて所定長延長した遮熱筒(5)と、この遮熱筒
(5)に直交させて相互に熱交換板面が平行となる並列
関係をなすとともに、各一端部が重なり合って前記遮熱
筒(5)に対し同軸の二重筒を形成する如く囲繞した配
置をなす3個以上奇数個のプレート形熱交換器(6_A
)、(6_B)、(6_C)とを備えていて、それ等プ
レート形熱交換器(6_A)、(6_B)、(6_C)
は、遮熱筒(5)の先端開口部と、燃焼室(1)に対し
最も遠い位置のプレート形熱交換器(6_A)における
遮熱筒(5)を包囲する前記一端部とが連結され、この
熱交換器(6_A)の他端部と第2番目に遠いプレート
形熱交換器(6_B)の他端部とが連結され、さらに、
このプレート形熱交換器(6_B)と第3番目に遠いプ
レート形熱交換器(6_C)との遮熱筒(5)を包囲す
る各一端部相互が連結されて、順次同要領により連結さ
れるとともに、燃焼室(1)に最も近いプレート形熱交
換器(6_C)の他端部が排気筒(8)を接続するため
の接続口(7)に形成されてなることを特徴とする温風
暖房機。 2、熱交換器(2)が燃焼室(1)に対し側方に並置さ
れてなり、各プレート形熱交換器(6_A)、(6_B
)、(6_C)・・・を遮熱筒(5)から離れた位置の
各他端部が遮熱筒(5)からの垂線に対し遠去かってな
る逆V字形に配設せしめている請求項1記載の温風暖房
機。 3、燃焼室(1)の排気口(4)に接続させる遮熱筒(
5)の端部に、外方の直角方向に出張らせた鍔(19)
を有する接続部が形成され、一方、燃焼室(1)に最も
近いプレート形熱交換器(6_C)の遮熱筒(5)を包
囲する一端部に、前記鍔(19)と排気口(4)の周壁
とで挟まれる鍔(20)を内方の直角方向に折込ませて
有する接続部が形成され、それ等両接続部が共締めによ
り燃焼室(1)に固着される請求項1又は2記載の温風
暖房機。[Claims] 1. Hot air heating in which a combustion chamber (1) and a heat exchanger (2) connected to and arranged in parallel with the combustion chamber (1) are arranged in a circulating air passage in a casing (3). the heat exchanger (2);
The heat shield tube (5) is connected to the exhaust port (4) of the combustion chamber (1) and extended by a predetermined length from a distance one after another. An odd number of three or more plates arranged in parallel so that the exchange plate surfaces are parallel, and one end of each plate overlaps to form a coaxial double cylinder with respect to the heat shield cylinder (5). Heat exchanger (6_A
), (6_B), and (6_C), which are plate-type heat exchangers (6_A), (6_B), and (6_C).
The tip opening of the heat shield tube (5) and the one end portion surrounding the heat shield tube (5) of the plate heat exchanger (6_A) located farthest from the combustion chamber (1) are connected. , the other end of this heat exchanger (6_A) and the other end of the second farthest plate heat exchanger (6_B) are connected, and further,
One end of this plate heat exchanger (6_B) and the third farthest plate heat exchanger (6_C) surrounding the heat shield cylinder (5) are connected to each other, and they are connected in the same manner in turn. In addition, the other end of the plate heat exchanger (6_C) closest to the combustion chamber (1) is formed as a connection port (7) for connecting the exhaust pipe (8). heater. 2. A heat exchanger (2) is arranged laterally in parallel to the combustion chamber (1), and each plate-type heat exchanger (6_A), (6_B
), (6_C)... are arranged in an inverted V-shape such that each other end at a position away from the heat shield tube (5) is far away from the perpendicular line from the heat shield tube (5). The hot air heater according to item 1. 3. Heat shield cylinder (to be connected to the exhaust port (4) of the combustion chamber (1)
5) Tsuba (19) that protrudes outward in the right angle direction at the end of the
On the other hand, at one end surrounding the heat shield cylinder (5) of the plate heat exchanger (6_C) closest to the combustion chamber (1), a connection section is formed having the flange (19) and the exhaust port (4). ) A connecting portion is formed by folding the collar (20) sandwiched between the surrounding wall of the combustion chamber in the inward right angle direction, and both connecting portions are fixed to the combustion chamber (1) by tightening together. The hot air heater described in 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63226773A JPH0756415B2 (en) | 1988-09-09 | 1988-09-09 | Hot air heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63226773A JPH0756415B2 (en) | 1988-09-09 | 1988-09-09 | Hot air heater |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0275856A true JPH0275856A (en) | 1990-03-15 |
JPH0756415B2 JPH0756415B2 (en) | 1995-06-14 |
Family
ID=16850386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63226773A Expired - Fee Related JPH0756415B2 (en) | 1988-09-09 | 1988-09-09 | Hot air heater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0756415B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114994443A (en) * | 2022-06-07 | 2022-09-02 | 国网江西省电力有限公司电力科学研究院 | Transformer neutral point direct current magnetic bias current measuring instrument |
-
1988
- 1988-09-09 JP JP63226773A patent/JPH0756415B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114994443A (en) * | 2022-06-07 | 2022-09-02 | 国网江西省电力有限公司电力科学研究院 | Transformer neutral point direct current magnetic bias current measuring instrument |
Also Published As
Publication number | Publication date |
---|---|
JPH0756415B2 (en) | 1995-06-14 |
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