JP3674431B2

JP3674431B2 - Heating system

Info

Publication number: JP3674431B2
Application number: JP36983099A
Authority: JP
Inventors: 範幸米野
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 1999-12-27
Filing date: 1999-12-27
Publication date: 2005-07-20
Anticipated expiration: 2019-12-27
Also published as: JP2001182952A

Description

【０００１】
【発明の属する技術分野】
本発明は、燃焼熱を用いた暖房装置、特に輻射熱を用いた暖房装置に関するものである。
【０００２】
【従来の技術】
従来のこの種の暖房装置は実公昭６３−１１５４８号公報に記載されているようなものが一般的であった。この暖房装置は図１１に示すように本体下部に設けられたバーナー１と、前記バーナー１からの燃焼ガスを通過させる中空の薄型箱状の熱交換器２とこの熱交換器２の両側に形成された縦長の開口３と、前記熱交換器２の少なくとも前面に塗装された遠赤外線塗料４と、室内空気を前記熱交換器２に送風して熱交換し温風として本体吐出口より吐出する対流ファン５からなり、前記上記熱交換器２は内部を中空にして前記バーナー１からの燃焼ガス６が通過するように中空形成して通路７を設け、熱交換器２の各部に前記燃焼ガス６が行き渡るよう通路７の一部に凹形のビード８を設けて開口３から排出する構成となっていた。
【０００３】
そしてバーナー１で発生した燃焼ガス６を熱交換器２に通過させて３００℃〜５００℃に加熱する事により、遠赤外線塗料で塗装された前面より遠赤外線を輻射し輻射暖房を行う。また、同時に熱交換器２の後面に沿って対流ファン５で取り入れた室内空気を送風し、熱交換器２の開口３で排出される燃焼ガス６と混合して室内へ温風として吐出し温風暖房を行うようになっていた。
【０００４】
【発明が解決しようとする課題】
しかしながら上記従来の暖房装置では、燃焼ガスは熱交換器内に流入し対流熱伝達で熱交換器を加熱するが、対流熱伝達量Ｑｃは（数１）で示すように熱交換器温度と燃焼ガス温度の差に比例するが、熱交換器からの輻射量Ｑｒは（数２）で示すように熱交換器の温度の４乗と輻射吸熱面の温度の４乗差に比例する。
【０００５】
【数１】

【０００６】
【数２】

【０００７】
従来の暖房装置における熱交換器の構成は、燃焼ガスと熱交換器の面積がほぼ等しく、また、熱交換器の熱伝達率は、平板のため１０Ｗ／ｍ２Ｋ程度であり、熱交換器温度を３００℃にするためには、燃焼ガス温度とパネル部材の温度差を大きくする必要があり、パネル部材へ導入する燃焼ガス温度を約８７０℃の高温にしなければならないのでバーナーや熱交換器を高温に耐える材質にする必要があり、また、バーナーで発生させた火炎で直接熱交換器を加熱する必要があった。また熱交換器通路内の燃焼ガスは流れが下流になるにしたがって境界層の厚さが大きくなり、熱交換器温度はバーナー付近より開口端付近の温度が低下するという課題があった。さらに、熱交換器が高温になった場合、熱膨張によって熱交換器が変形するという課題があった。
【０００８】
【課題を解決するための手段】
本発明は前記課題を解決するため高温ガスを発生する高温ガス発生手段と、前記高温ガスの熱によって加熱される採熱面と輻射エネルギーを発生する輻射面との両面を持ち、前記高温ガス発生手段の前側から上方にかけて配置した輻射体と、前記輻射体の採熱面に対向して下端より上端に向って形成し、前記採熱面に高温ガスを導く輻射体加熱風路と、前記輻射体加熱風路の下部と前記高温ガス発生手段とを結ぶ連結風路を備え、前記輻射体の採熱面及び輻射面の両面に高温ガス発生手段の高温ガスを輻射体の下端より上昇気流として導き、輻射体を採熱面と輻射面の両面から加熱する構成とし、かつ前記輻射体の中にフィンを配設した構成としたものである。
【０００９】
上記構成により、高温ガスは採熱面と輻射面の両面を輻射体の下端より上昇気流によって加熱し、さらにフィンも加熱し、高温ガスが輻射体に熱伝達する際の伝熱面積は一層、拡大される。また、フィンも輻射体となるので輻射面の面積が減少することもない。さらに採熱面と輻射面の両面加熱によって熱伝達率が大きくなるので、高温ガスの熱が効率よく輻射面に伝わる。したがって、高温ガスの温度が低くても高い輻射体温度が得られ、また輻射面の温度変化も少なくすることができる。
【００１０】
さらにフィンによって境界層の発達が小さくなり熱伝達率が大きくなるので、高温ガスの熱が効率よく輻射面に伝わる。したがって、高温ガスの温度が低くても高い輻射体温度が得られる。また境界層が発達しないので輻射面の温度変化が少なく、また、フィンによって輻射体が補強されるので輻射体の変形を小さくすることができる。
【００１１】
【発明の実施の形態】
本発明の請求項１にかかる暖房装置は、燃料を燃焼させるバーナー等の高温ガスを発生する高温ガス発生手段と、高温ガスの熱によって加熱される採熱面と輻射エネルギーを発生する輻射面との両面を持ち、前記高温ガス発生手段の前側から上方にかけて配置した輻射体と、輻射体の採熱面に対向して下端より上端に向って形成し、前記採熱面に高温ガスを導く輻射体加熱風路と、輻射体加熱風路の下部と高温ガス発生手段とを結ぶ連結風路を備え、前記輻射体の採熱面及び輻射面の両面に高温ガス発生手段の高温ガスを輻射体の下端より上昇気流として導き、輻射体を採熱面と輻射面の両面から加熱する構成とし、かつ前記輻射体の中にフィンを配設している。上記実施形態により、フィンによって高温ガスが輻射体に熱伝達する際の伝熱面積が拡大されるので、高温ガスの熱がフィンによって効率よく輻射面に伝わるので、高温ガスの温度と輻射面の温度差を小さくすることができる。
【００１２】
本発明の請求項２にかかる暖房装置は、高温ガスを発生する高温ガス発生手段と、高温ガスの熱によって加熱される採熱面と輻射エネルギーを発生する輻射面との両方の面を持ち、前記高温ガス発生手段の前側から上方にかけて配置し、かつ前記採熱面に突起や切れ込みなどの熱伝達促進手段を設けられた輻射体と、輻射体の採熱面に対向して下端より上端に向って形成し、前記採熱面に高温ガスを導く輻射体加熱風路と、輻射体加熱風路の下部と高温ガス発生手段とを結ぶ連結風路を備え、前記輻射体の採熱面及び輻射面の両面に高温ガス発生手段の高温ガスを輻射体の下端より上昇気流として導き、輻射体を採熱面と輻射面の両面から加熱する構成としている。そして上記構成の実施形態により、熱伝達促進手段が設けられているので、境界層の発達が小さくなり熱伝達率が大きくなる。従って高温ガスの熱が効率よく輻射面に伝わり、高温ガスの温度と輻射面の温度差をより小さくすることと、輻射面の温度変化を少なくすることができる。
【００１３】
本発明の請求項３にかかる暖房装置は、請求項２記載の暖房装置において、輻射体は採熱面から輻射面に貫通し、ルーバーを付けた穴で熱促進手段を形成して輻射体の輻射面に高温ガスを導いてなる構成である。そして上記構成の実施形態により、輻射体にルーバーを付けた穴が設けられているので高温ガスは輻射体加熱風路から輻射体の輻射面にも流れ、高温ガスは採熱面と輻射面の両面から輻射体を加熱し、さらにルーバーも加熱し、高温ガスが輻射体に熱伝達する際の伝熱面積は拡大される。また、ルーバーも輻射体となるので穴によって輻射面の面積が減少することもない。さらに穴によって境界層の発達が小さくなり熱伝達率が大きくなるので、高温ガスの熱が効率よく輻射面に伝わる。したがって、高温ガスの温度と輻射面の温度差をより小さくすることができる。境界層が発達しないので輻射面の温度変化が少なく、また、ルーバーによって輻射体が補強されるので輻射体の変形を小さくすることができる。
【００１４】
本発明の請求項４にかかる暖房装置は、請求項３記載の暖房装置において熱伝達促進手段として、ルーバーを付けた穴の開口端が重力方向の上方に設けられた構成としたものである。そして上記構成の実施形態により高温ガスは輻射体加熱風路からドラフト効果により輻射体輻射面上方に流れ出すので、開口端からの風速が増し輻射面での熱伝達率が増加するので高温ガスの温度と輻射面の温度差をより小さくすることができる。さらに、高温ガス送風の圧力損失を小さくすることができ、送風機を小型化することができる。
【００１５】
本発明の請求項５にかかる暖房装置は請求項３または請求項４記載の暖房装置において輻射体に千鳥配置にルーバーを付けた穴が設けられた構成となっている。そして上記構成の実施形態により、高温ガスは加熱風路からルーバーを付けた穴を通って輻射体輻射面に流れ輻射面をむらなく加熱するので、高温ガスが輻射体に熱伝達する際の伝熱面積はより拡大され、高温ガスの熱が効率よく輻射面に伝わり、高温ガスの温度と輻射面の温度差をより小さくすることができる。
【００１６】
本発明の請求項６にかかる暖房装置は請求項３または請求項４記載の暖房装置において輻射体に設けられたルーバーを付けた穴が連結風路から離れるにしたがって数が多くなる構成となっている。そして上記構成の実施形態により請求項３または請求項４の効果に加え、連結風路から流入した燃焼ガス温度は連結風路から離れるほど低下するが、燃焼ガスは加熱風路から離れるほど輻射体輻射面にも流れ加熱風路側と輻射面側の両面から輻射面を加熱するので、輻射体の温度を均一にすることができる。
【００１７】
本発明の請求項７にかかる暖房装置は請求項３ないし、請求項６のうちのいずれか１項に記載の暖房装置において輻射体が連続的に折り曲げられた形状としたものである。そして上記構成の実施形態により請求項３ないし、請求項６の効果に加え、高温ガスは輻射体加熱風路からルーバーを付けた穴を通って輻射体輻射面にも流れ出し、加熱風路側と輻射面側の両面から輻射面を加熱するとともに、流れ出した高温ガスが室内に広がらず折り曲げられた隣り合う輻射体も加熱するので、燃焼ガスの熱が効率よく輻射面に伝わるので、燃焼ガスの温度と輻射面の温度差をさらに小さくすることができる。
【００１８】
【実施例】
（実施例１）
図１は本発明の実施例１の暖房装置の一部を切り欠いて要部を示した斜視図である。図において、１１は石油やガス燃料を燃焼させる円形バーナー等の高温ガスを発生する高温ガス発生手段であり、２４は高温ガスの熱によって加熱される採熱面２５と輻射エネルギーを発生する輻射面２６を持った輻射体であり、高温ガスを採熱面２５および輻射面２６に送風する採熱面加熱風路２７および輻射面下端に設けられた輻射面加熱風路２８を持ち、採熱面加熱風路２７および輻射面加熱風路２８は連結風路１７によって高温ガス発生手段１１から高温ガスが導かれる構成となっている。上記構成により、高温ガス発生手段１１の燃焼で発生した高温ガスは連結風路１７によって採熱面加熱風路２７の下部に設けられた輻射体加熱風路入口２９に導かれ採熱面加熱風路２７を通ってドラフト作用によって風速を増しながら、採熱面２５を加熱し採熱面加熱風路２７の上方に設けられた輻射体加熱風路出口３０に導かれる。さらに高温ガスは連結風路１７から輻射面加熱風路２８に導かれ、輻射面２６にも送風され輻射面２６の下端から上昇気流となって上昇し輻射面２６を加熱する。このため輻射体２４は、高温ガスによって採熱面２５、および輻射面２６の両方から加熱される。そして、輻射体２４が約３００℃に加熱され、輻射面から遠赤外線が輻射され、輻射によって室内の暖房を行う。このため人体に直接風が当たる事なく快適な暖房感が得られる。
【００１９】
本実施例の構成では高温ガスと輻射体２４の熱伝達面積は、採熱面２５のみの加熱に対して２倍になるので、従来例と同じように輻射体温度を３００℃の温度にするには、５８０℃で良い。このため高温ガス発生手段１１としてラインバーナーを用い火炎で直接熱交換器を加熱する必要がなく、排気ガス特性の良い円形バーナーを用い、高温ガスによって輻射暖房を行う事が出来る。なお、輻射体２４の中にフィンを配設すればより熱伝達効率を向上させることができる。
【００２０】
（実施例２）
図２は本発明の実施例２の暖房装置の一部を切り欠いて要部を示した斜視図である。図２において、１１は石油やガス燃料を燃焼させる円形バーナー等の高温ガスを発生する高温ガス発生手段であり、３１は高温ガスの熱によって加熱される採熱面３２と輻射エネルギーを発生する輻射面３３を持ち、採熱面３２から輻射面３３に直径５ｍｍで２０ｍｍピッチに配置した貫通した穴３４を設けた輻射体であり、輻射体３１の採熱面３２には高温ガスを導く輻射体加熱風路１６が取り付けられ、輻射体加熱風路１６には連結風路１７によって高温ガス発生手段１１から高温ガスが導かれる構成となっている。
【００２１】
上記構成により、高温ガス発生手段１１の燃焼により発生した高温ガスは連結風路１７によって輻射体加熱風路１６の下部に設けられた輻射体加熱風路入口２９に導かれ輻射体加熱風路１６を通ってドラフト作用によって風速を増しながら、採熱面３２を加熱するとともに、穴３４を通って輻射面３３に導かれ、上昇流となって輻射面３３を加熱する。このため輻射体３１は、高温ガスによって採熱面３２、および輻射面３３の両方から加熱される。そして、輻射体３１が約３００℃に加熱され、輻射面３３から遠赤外線が輻射され、輻射によって室内の暖房を行う。このため人体に直接風が当たる事なく快適な暖房感が得られる。
【００２２】
本実施例の構成では高温ガスと輻射体３１の熱伝達面積は、採熱面３２のみの加熱に対して２倍になるとともに、穴３４によって境界層の発達が小さくなり熱伝達率が１５Ｗ／ｍ２Ｋとなる。したがって高温ガスの熱が効率よく輻射面３３に伝わり、燃焼ガスの温度と輻射面３３の温度差をより小さくすることができる。従来例と同じように輻射体温度を３００℃の温度にするには、高温ガス温度は４９０℃で良い。このため高温ガス発生手段１１としてラインバーナーを用い火炎で直接熱交換器を加熱する必要がなく、排気ガス特性の良い円形バーナーを用い、高温ガスによって輻射暖房を行う事が出来る。さらに、境界層が発達しないので輻射面３３の温度変化を少なくすることができる。
【００２３】
（実施例３）
図３は本発明の実施例３の暖房装置の一部を切り欠いて要部を示す斜視図である。図３において、実施例２と同じ部分は同様の構成であり、輻射体３１には採熱面３２から輻射面３３に直径５ｍｍで２０ｍｍピッチに配置した貫通した穴３４を千鳥配置に設けられている。
【００２４】
上記構成により、高温ガス発生手段１１の燃焼で発生した高温ガスは連結風路１７によって輻射体加熱風路１６の下部に設けられた輻射体加熱風路入口２９に導かれ輻射体加熱風路１６を通ってドラフト作用によって風速を増しながら、採熱面３３を加熱するとともに、千鳥配置に設けられた穴３４を通って輻射面３３に導かれ、上昇流となって輻射面３３を加熱する。したがって実施例２の構成に比べ輻射面３３の加熱効率が良く、従来例と同じように輻射体温度を３００℃の温度にするには、高温ガス温度は４７０℃で良く、さらに、輻射面３３の温度差をより小さくすることができる。
【００２５】
（実施例４）
図４は本発明の実施例４の暖房装置の一部を切り欠いて要部を示した斜視図である。図４において、実施例２と同じ部分は同様の構成であり、輻射体３１には採熱面３２から輻射面３３に直径５ｍｍで貫通した穴３４を連結風路１７から離れるにしたがって数が多くなるように配置している。
【００２６】
上記構成により、高温ガス発生手段１１の燃焼で発生した高温ガスは連結風路１７によって輻射体加熱風路１６の下部に設けられた輻射体加熱風路入口２９に導かれ輻射体加熱風路１６を通ってドラフト作用によって風速を増しながら、採熱面３３を加熱するとともに、穴３４を通って輻射面３３に導かれ、上昇流となって輻射面３３を加熱する。連結風路１７から流入した高温ガス温度は連結風路１７から離れるほど低下するが、輻射面３３の穴３４を通過した高温ガスによる加熱は連結風路１７から離れるほど数が多くなるので、実施例２の特徴に加え、輻射体３１の輻射体加熱方向の温度分布を均一にすることができる。
【００２７】
（実施例５）
図５は本発明の実施例５の暖房装置の一部を切り欠いて要部を示した斜視図である。図５において、１１は石油やガス燃料を燃焼させる円形バーナー等の高温ガスを発生する高温ガス発生手段であり、３５は高温ガスの熱によって加熱される採熱面３６と輻射エネルギーを発生する輻射面３７を持ち採熱面３６から輻射面３７に直径５ｍｍで２０ｍｍピッチに配置した貫通した穴３８を設け、投影面積に対し採熱面３６、および輻射面３７の面積が３倍になるようなピッチと深さで連続的に折り曲げられた形状の輻射体であり、輻射体３５の採熱面３７には高温ガスを導く輻射体加熱風路１６が取り付けられ、輻射体加熱風路１６には連結風路１７によって高温ガス発生手段１１から高温ガスが導かれる構成となっている。
【００２８】
上記構成により、高温ガス発生手段１１の燃焼で発生した高温ガスは連結風路１７によって輻射体加熱風路１６の下部に設けられた輻射体加熱風路入口２９に導かれ輻射体加熱風路１６を通ってドラフト作用によって風速を増しながら、採熱面３６を加熱するとともに、穴３８を通って輻射面３７に導かれ、上昇流となって輻射面３７を加熱する。このため輻射体３６は、高温ガスによって採熱面３６、および輻射面３７の両方から加熱される。そして、輻射体３５が約３００℃に加熱され、輻射面３７から遠赤外線が輻射され、輻射によって室内の暖房を行う。このため人体に直接風が当たる事なく快適な暖房感が得られる。本実施例の構成では高温ガスと輻射体３５の熱伝達面積は、採熱面のみの加熱に対して２倍になるとともに、採熱面３６の面積が投影面積に対して３倍になるように折り曲げらているので、高温ガスから輻射体３５への伝熱面積は６倍になっており、穴３８によって境界層の発達が小さくなり熱伝達率が１５Ｗ／ｍ２Ｋとなる。したがって高温ガスの熱が効率よく輻射面３７に伝わり、燃焼ガスの温度と輻射面３７の温度差をより小さくすることができる。従来例と同じように輻射体温度を３００℃の温度にするには、高温ガス温度は３７０℃で良い。このため高温ガス発生手段１１としてラインバーナーを用い火炎で直接熱交換器を加熱する必要がなく、排気ガス特性の良い円形バーナーを用い、火炎で間接的に高温ガスを作って輻射暖房を行う事が出来る。
【００２９】
さらに輻射面３７の面積が投影面積に対して３倍になっているので、見かけの輻射率が上がり、同じ輻射体３６の温度でも暖房時の輻射量を大きくする事が出来る。
【００３０】
また、さらに輻射体３５が高温になり熱膨張した場合も、折り曲げ部によって膨張が吸収されるので、輻射体全体の変形を防止する事が出来る
（実施例６）
図６は本発明の実施例６の暖房装置の一部を切り欠いて要部を示した斜視図である。図６において、１１は石油やガス燃料を燃焼させる円形バーナー等の高温ガスを発生する高温ガス発生手段であり、３９は、高温ガスの熱によって加熱される採熱面４０と輻射エネルギーを発生する輻射面４１を持ち、採熱面４０から輻射面４１に貫通し熱伝達促進手段として輻射面４１を切り起こし開口端４２があるルーバーを付けた穴４３を設けた輻射体であり、輻射体３９の採熱面４０には高温ガスを導く輻射体加熱風路１６が取り付けられ、輻射体加熱風路１６には連結風路１７によって高温ガス発生手段１１から高温ガスが導かれる構成となっている。
【００３１】
上記構成により、高温ガス発生手段１１の燃焼で発生した高温ガスは連結風路１７によって輻射体加熱風路１６の下部に設けられた輻射体加熱風路入口１８に導かれ輻射体加熱風路１６を通ってドラフト作用によって風速を増しながら、採熱面４０を加熱するとともに、ルーバーを付けた穴４３によって輻射面４１に導かれ開口端４２から輻射面４１に吹き付けられ、上昇流となって輻射面４１を加熱する。このため輻射体３９は、高温ガスによって採熱面４０、および輻射面４１の両方から加熱される。そして、輻射体３９が約３００℃に加熱され、輻射面４１から遠赤外線が輻射され、輻射によって室内の暖房を行う。このため人体に直接風が当たる事なく快適な暖房感が得られる。
【００３２】
本実施例の構成では高温ガスと輻射体３９の熱伝達面積は、採熱面４０のみの加熱に対して２倍になるとともに、ルーバーも輻射体となるのでルーバーを付けた穴４３によって輻射面４１の面積が減少することもない。またルーバーを付けた穴４３によって境界層の発達が小さくなり熱伝達率が２５Ｗ／ｍ２Ｋとなる。したがって高温ガスの熱が効率よく輻射面４１に伝わり、燃焼ガスの温度と輻射面４１の温度差をより小さくすることができる。従来例と同じように輻射体温度を３００℃の温度にするには、高温ガス温度は４１０℃で良い。このため高温ガス発生手段１１としてラインバーナーを用い火炎で直接熱交換器を加熱する必要がなく、排気ガス特性の良い円形バーナーを用い、高温ガスによって輻射暖房を行う事が出来る。さらに、境界層が発達しないので輻射面の温度変化を少なくすることができる。また、ルーバーによって輻射体が補強されるので輻射体の変形を小さくすることができる。
【００３３】
（実施例７）
図７は本発明の実施例７の暖房装置の一部を切り欠いて要部を示した斜視図である。図７において、実施例６と同じ番号の部分は同様の構成であり熱伝達促進手段として、ルーバーを付けた穴４３の開口端４２が重力方向の上方に設けられた構成としたものである。そして上記構成により高温ガスは輻射体加熱風路１６からドラフト効果により輻射体３９の輻射面４１の上方に流れ出すので、開口端４２からの風速が増し輻射面４１での熱伝達率が増加するので高温ガスの温度と輻射面４１の温度差をより小さくすることができる。さらに、高温ガス送風の圧力損失を小さくすることができ、送風機４４を小型化することができる。
【００３４】
（実施例８）
図８は本発明の実施例８の暖房装置の一部を切り欠いて要部を示した斜視図である。図８において、実施例６と同じ番号の部分は同様の構成であり、千鳥配置に輻射体３９の採熱面４０から輻射面４１に貫通し熱伝達促進手段としてあるルーバーを付けた穴４３を設けた構成となっている。そして上記構成により、高温ガスは輻射体加熱風路１６から千鳥配置に設けられたルーバーを付けた穴４３を通って開口端４２から輻射面４１に流れ輻射面４１をむらなく加熱するので、高温ガスが輻射体３９に熱伝達する際の伝熱面積はより拡大され、高温ガスの熱が効率よく輻射面４１に伝わり、高温ガスの温度と輻射面の温度差をより小さくすることができる。
【００３５】
（実施例９）
図９は本発明の実施例９の暖房装置の一部を切り欠いて要部を示した斜視図である。図９において、実施例６と同じ番号の部分は同様の構成であり、輻射体３９には採熱面４０から輻射面４１に貫通し熱伝達促進手段として輻射面４１を切り起こし開口端４２があるルーバーを付けた穴４３を連結風路１７から離れるにしたがって数多くなるよう配置している。
【００３６】
上記構成により、高温ガス発生手段１１の燃焼で発生した高温ガスは連結風路１７によって輻射体加熱風路１６の下部に設けられた輻射体加熱風路入口１８に導かれ輻射体加熱風路１６を通ってドラフト作用によって風速を増しながら、採熱面４０を加熱するとともに、ルーバーを付けた穴４３を通って輻射面４１に導かれ、上昇気流となって輻射面４１を加熱する。連結風路１７から流入した高温ガスの温度は連結風路１７から離れるほど低下するが、輻射面４１のルーバーを付けた穴４３を通過した高温ガスによる加熱は連結風路１７から離れるほど穴４３の数が多くなるので、実施例６の特徴に加え、輻射体の輻射体加熱方向の温度分布を均一にすることができる。
【００３７】
（実施例１０）
図１０は本発明の実施例１０の暖房装置の一部を切り欠いて要部を示した斜視図である。
【００３８】
図１０において、１１は石油やガス燃料を燃焼させる円形バーナー等の高温ガスを発生する高温ガス発生手段であり、４５は高温ガスの熱によって加熱される採熱面４６と輻射エネルギーを発生する輻射面４７を持ち採熱面４６から輻射面４７に貫通し熱伝達促進手段として輻射面４７を切り起こし開口端４８があるルーバーを付けた穴４９を設けた輻射体であり、採熱面４６および輻射面４７の面積が３倍になるようなピッチと深さで連続的に折り曲げられた形状であり、輻射体４５の採熱面４６には高温ガスを導く輻射体加熱風路１６が取り付けられ、輻射体加熱風路１６には連結風路１７によって高温ガス発生手段１１から高温ガスが導かれる構成となっている。上記構成により、高温ガス発生手段１１の燃焼により発生した高温ガスは連結風路１７によって輻射体加熱風路１６の下部に設けられた輻射体加熱風路入口２９に導かれ輻射体加熱風路１６を通ってドラフト作用によって風速を増しながら、輻射体加熱風路１６の途中にある採熱面４６を加熱するとともに、ルーバーを付けた穴４９を通って開口端４８から輻射面４７に導かれ、上昇気流となって輻射面４７を加熱する。このため輻射体４５は、高温ガスによって採熱面４６、および輻射面４７の両方から加熱される。そして、輻射体４５が約３００℃に加熱され、輻射面４７から遠赤外線が輻射され、輻射によって室内の暖房を行う。このため人体に直接風が当たる事なく快適な暖房感が得られる。本実施例の構成では高温ガスと輻射体４５の熱伝達面積は、採熱面４６のみの加熱に対して２倍になるとともに、採熱面４６の面積が投影面積に対して３倍になるように折り曲げらているので、高温ガスから輻射体４５への伝熱面積は６倍になっており、ルーバーを付けた穴４９によって境界層の発達が小さくなり熱伝達率が２５Ｗ／ｍ２Ｋとなる。したがって高温ガスの熱が効率よく輻射面４７に伝わり、燃焼ガスの温度と輻射面４７の温度差をより小さくすることができる。従来例と同じように輻射体温度を３００℃の温度にするには、高温ガス温度は３５０℃で良い。このため高温ガス発生手段１１としてラインバーナーを用い火炎で直接熱交換器を加熱する必要がなく、排気ガス特性の良い円形バーナーを用い、火炎で間接的に高温ガスを作って輻射暖房を行う事が出来る。
【００３９】
さらに輻射面４７の面積が投影面積に対して３倍になっているので、見かけの輻射率が上がり、同じ輻射体４７の温度でも暖房時の輻射量を大きくする事が出来る。
【００４０】
また、さらに輻射面４７が高温になり熱膨張した場合も、ルーバーによって輻射体が補強されるとともに折り曲げ部によって膨張が吸収されるので、輻射体全体の変形を防止する事が出来る。
【００４１】
【発明の効果】
以上説明したように本発明に係る暖房装置によれば、連結風路を介して輻射体加熱風路に導かれた高温ガス発生手段の高温ガスが輻射体の下端より上昇気流として導かれ、輻射体の採熱面と輻射面の両方の面を加熱するので、高温ガスが輻射体に熱伝達する伝熱面積は２倍になり、高温ガスの熱が効率よく輻射面に伝わり、高温ガスの温度と輻射面の温度差を小さくできるとともに、フィンによっても高温ガスが輻射体に熱伝達する際の伝熱面積が拡大されるので、高温ガスの熱がフィンによって効率よく輻射面に伝わり、高温ガスの温度と輻射面の温度差を小さくすることができる。
【００４２】
また、本発明に係る暖房装置によれば、輻射体の採熱面に突起や切れ込みなどの熱伝達促進手段を設けた構成としているので、境界層の発達が小さくなり熱伝達率が大きくなり、高温ガスの熱が効率よく輻射面に伝わり、高温ガスの温度と輻射面の温度差をより小さくすることと、輻射面の温度変化を少なくすることができる。
【図面の簡単な説明】
【図１】本発明の実施例１における暖房装置の一部を切り欠いて要部を示した斜視図
【図２】同実施例２における暖房装置の一部を切り欠いて要部を示した斜視図
【図３】同実施例３における暖房装置の一部切り欠いて要部を示した斜視図
【図４】同実施例４における暖房装置の一部を切り欠いて要部を示した斜視図
【図５】同実施例５における暖房装置の一部切り欠いて要部を示した斜視図
【図６】同実施例６における暖房装置の一部切り欠いて要部を示した斜視図
【図７】同実施例７における暖房装置の一部切り欠いて要部を示した斜視図
【図８】同実施例８における暖房装置の一部切り欠いて要部を示した斜視図
【図９】同実施例９における暖房装置の一部切り欠いて要部を示した斜視図
【図１０】同実施例１０における暖房装置の一部切り欠いて要部を示した斜視図
【図１１】従来の暖房装置の一部切り欠いて要部を示した斜視図
【符号の説明】
１１高温ガス発生手段
２４、３１、３５、３９、４５輻射体
２５、３２、３６、４０、４６採熱面
２６、３３、３７、４１、４７輻射面
１６輻射体加熱風路
１７連結風路
１８、２９輻射体加熱風路入口
３０輻射体加熱風路出口
２７採熱面加熱風路
２８輻射面加熱風路
３４、３８穴
４２、４８開口端
４３、４９ルーバーを付けた穴[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a heating device using combustion heat, and more particularly to a heating device using radiant heat.
[0002]
[Prior art]
  A conventional heating apparatus of this type is generally described in Japanese Utility Model Publication No. 63-11548. This heating deviceIn FIG.As shown, a burner 1 provided at the lower part of the main body, a hollow thin box-shaped heat exchanger 2 through which combustion gas from the burner 1 passes, and a vertically long opening 3 formed on both sides of the heat exchanger 2 The far-infrared paint 4 painted on at least the front surface of the heat exchanger 2 and the convection fan 5 that blows indoor air to the heat exchanger 2 to exchange heat and discharge it as hot air from the main body outlet, The heat exchanger 2 is hollow so that the combustion gas 6 from the burner 1 passes therethrough and is provided with a passage 7, and the passage 7 is provided so that the combustion gas 6 can reach each part of the heat exchanger 2. A concave bead 8 is provided in a part, and is discharged from the opening 3.
[0003]
  The combustion gas 6 generated in the burner 1 is passed through the heat exchanger 2 and heated to 300 ° C. to 500 ° C., so that far infrared rays are radiated from the front surface coated with the far infrared paint and radiant heating is performed. At the same time, the indoor air taken in by the convection fan 5 is blown along the rear surface of the heat exchanger 2, mixed with the combustion gas 6 discharged from the opening 3 of the heat exchanger 2, and discharged into the room as hot air. I was supposed to do air heating.
[0004]
[Problems to be solved by the invention]
  However, in the above conventional heating device, the combustion gas flows into the heat exchanger and heats the heat exchanger by convective heat transfer, but the convective heat transfer amount Qc is equal to the heat exchanger temperature and the combustion as shown in (Equation 1). Although proportional to the difference in gas temperature, the amount of radiation Qr from the heat exchanger is proportional to the fourth power difference between the temperature of the heat exchanger and the temperature of the radiation endothermic surface as shown in (Equation 2).
[0005]
[Expression 1]

[0006]
[Expression 2]

[0007]
  Conventional heating systemInThe structure of the heat exchanger is such that the area of the combustion gas and the heat exchanger is almost equal, and the heat transfer coefficient of the heat exchanger is about 10 W / m 2 K due to the flat plate, and the heat exchanger temperature is set to 300 ° C. Therefore, it is necessary to increase the temperature difference between the combustion gas temperature and the panel member, and the combustion gas temperature introduced into the panel member has to be a high temperature of about 870 ° C. It was also necessary to heat the heat exchanger directly with a flame generated by a burner. Further, the combustion gas in the heat exchanger passage has a problem that the thickness of the boundary layer increases as the flow becomes downstream, and the heat exchanger temperature is lower in the vicinity of the opening end than in the vicinity of the burner. Furthermore, when a heat exchanger became high temperature, the subject that a heat exchanger deform | transforms by thermal expansion occurred.
[0008]
[Means for Solving the Problems]
  In order to solve the above problems, the present invention provides a high temperature gas generating means for generating a high temperature gas,SaidHeated by hot gas heatHeat collecting surfaceAnd the radiant surface that generates radiant energyIt has both sides and is arranged from the front side to the upper side of the hot gas generating means.A radiator,SaidOn the heat collecting surface of the radiatorOppositely formed from the lower end toward the upper end, on the heat collecting surfaceA radiator heating air passage for guiding a high temperature gas, and the radiator heating air passageBottom ofAnd a connecting air passage connecting the hot gas generating meansAnd a structure in which the high temperature gas of the high temperature gas generating means is guided as an upward air flow from the lower end of the radiator on both the heat collecting surface and the radiation surface of the radiator, and the radiator is heated from both the heat collecting surface and the radiation surface, and Fins are disposed in the radiator.It is a configuration.
[0009]
  With the above configuration,The hot gas heats both the heat-collecting surface and the radiant surface from the lower end of the radiant by an updraft,Furthermore, the fins are also heated, and the heat transfer area when the high-temperature gas transfers heat to the radiator is further expanded. Further, since the fin also becomes a radiator, the area of the radiation surface does not decrease. furtherSince the heat transfer coefficient is increased by heating both the heat collecting surface and the radiation surface, the heat of the high-temperature gas is efficiently transmitted to the radiation surface. Therefore, even if the temperature of the high temperature gas is low, a high radiator temperature can be obtained, and the temperature change of the radiation surface can be reduced.
[0010]
  Further, the development of the boundary layer is reduced by the fins and the heat transfer coefficient is increased, so that the heat of the high temperature gas is efficiently transmitted to the radiation surface. Therefore, even if the temperature of the high temperature gas is low, a high radiator temperature can be obtained. Further, since the boundary layer does not develop, the temperature change of the radiation surface is small, and the radiator is reinforced by the fins, so that the deformation of the radiator can be reduced.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
  A heating apparatus according to claim 1 of the present invention is a high-temperature gas generating means for generating a high-temperature gas such as a burner for burning fuel, and is heated by heat of the high-temperature gas.Heat collecting surfaceAnd the radiant surface that generates radiant energyIt has both sides and is arranged from the front side to the upper side of the hot gas generating means.On the radiator and the heat collecting surface of the radiatorOppositely formed from the lower end toward the upper end, on the heat collecting surfaceRadiant heating air channel that guides high-temperature gas, and radiator heating air channelBottom ofA connecting air passage connecting the gas and the hot gas generation meansAnd a structure in which the high temperature gas of the high temperature gas generating means is guided as an upward air flow from the lower end of the radiator on both the heat collecting surface and the radiation surface of the radiator, and the radiator is heated from both the heat collecting surface and the radiation surface, and Fins are arranged in the radiator.ing. According to the above embodiment, the heat transfer area when the high temperature gas is transferred to the radiant by the fin is expanded, so the heat of the high temperature gas is efficiently transferred to the radiant surface by the fin. To reduce the temperature differenceit can.
[0012]
  Of the present inventionClaim2The heating device according to the present invention has both a hot gas generating means for generating hot gas, a heat collecting surface heated by the heat of the hot gas, and a radiant surface for generating radiant energy.And arranged from the front side to the upper side of the hot gas generating means, andA radiator provided with heat transfer promoting means such as protrusions and cuts on the heat collecting surface, and a heat collecting surface of the radiatorOppositely formed from the lower end toward the upper end, on the heat collecting surfaceRadiant heating air channel that guides high-temperature gas, and radiator heating air channelBottom ofA connecting air passage connecting the gas and the hot gas generation meansThe high temperature gas of the high temperature gas generating means is guided as an updraft from the lower end of the radiator to both the heat collecting surface and the radiation surface of the radiator, and the radiator is heated from both the heat collecting surface and the radiation surface.It is configured. And since the heat transfer promotion means is provided by the embodiment of the above configuration, the development of the boundary layer is reduced and the heat transfer coefficient is increased. Therefore, the heat of the high-temperature gas is efficiently transmitted to the radiation surface, and the temperature difference between the temperature of the high-temperature gas and the radiation surface can be further reduced and the temperature change of the radiation surface can be reduced.
[0013]
  Claims of the invention3The heating device according to claim2In the described heating device,The radiator penetrates from the heat collection surface to the radiation surface,Hole with louverIt forms a heat promoting means and guides high temperature gas to the radiation surface of the radiator.It is a configuration. According to the embodiment of the above configuration, since the radiator is provided with a hole with a louver, the hot gas flows from the radiator heating air passage to the radiation surface of the radiator, and the high temperature gas flows between the heat collecting surface and the radiation surface. The radiator is heated from both sides, and the louver is also heated, so that the heat transfer area when the high-temperature gas transfers heat to the radiator is expanded. Further, since the louver also becomes a radiator, the area of the radiation surface is not reduced by the hole. Furthermore, since the development of the boundary layer is reduced by the holes and the heat transfer coefficient is increased, the heat of the hot gas is efficiently transmitted to the radiation surface. Therefore, the temperature difference between the temperature of the hot gas and the radiation surface can be further reduced. Since the boundary layer does not develop, the temperature change of the radiation surface is small, and the radiator is reinforced by the louver, so that the deformation of the radiator can be reduced.
[0014]
  Claims of the invention4The heating device according to claim3In the described heating apparatus, the opening end of the hole provided with the louver is provided as the heat transfer promoting means above the gravitational direction. According to the embodiment of the above configuration, the hot gas flows out from the radiator heating air passage above the radiator radiation surface due to the draft effect, so that the wind speed from the opening end increases and the heat transfer coefficient at the radiation surface increases, so the temperature of the high temperature gas increases. And the temperature difference between the radiation surfaces can be further reduced. Furthermore, the pressure loss of high temperature gas blowing can be reduced, and the blower can be downsized.
[0015]
  Claims of the invention5The heating device according to claim3Or claims4In the described heating apparatus, the radiator is provided with holes provided with louvers in a staggered arrangement. According to the embodiment of the above configuration, the high temperature gas flows from the heating air passage through the holes provided with louvers to the radiator radiation surface and heats the radiation surface evenly. Therefore, the high temperature gas is transferred when heat is transferred to the radiator. The heat area is further expanded, the heat of the high temperature gas is efficiently transmitted to the radiation surface, and the temperature difference between the temperature of the high temperature gas and the radiation surface can be further reduced.
[0016]
  Claims of the invention6The heating deviceClaim 3 or claim 4In the heating apparatus described, the number of holes with louvers provided in the radiator increases as the distance from the connection air passage increases. And according to an embodiment of the above configuration,3 or claim 4In addition to the above effects, the temperature of the combustion gas flowing in from the connected air passage decreases as the distance from the connected air passage decreases, but the combustion gas flows to the radiator radiation surface as the distance from the heating air passage increases. Since the radiation surface is heated, the temperature of the radiator can be made uniform.
[0017]
  Claims of the invention7The heating device according to claim3And in the heating apparatus of any one of Claim 6, it is set as the shape by which the radiator was bent continuously. And according to an embodiment of the above configuration,3Moreover, in addition to the effect of claim 6, the high temperature gas flows out from the radiator heating air passage through the hole provided with the louver to the radiation radiation surface, and heats the radiation surface from both the heating air passage side and the radiation surface side. At the same time, the heated radiant gas does not spread into the room but also heats the adjacent radiant body, so that the heat of the combustion gas is efficiently transferred to the radiant surface, further reducing the temperature difference between the combustion gas and the radiant surface. Canit can.
[0018]
【Example】
  (Example 1)
  FIG.Of the present inventionExample 1It is the perspective view which notched a part of heating apparatus of this and showed the principal part. In the figure, 11 is a high temperature gas generating means for generating a high temperature gas such as a circular burner for burning oil or gas fuel, and 24 is a heat collecting surface 25 heated by the heat of the high temperature gas and a radiation surface for generating radiant energy. 26, a heat collecting surface heating air passage 27 for blowing high-temperature gas to the heat collecting surface 25 and the radiation surface 26, and a radiation surface heating air passage 28 provided at the lower end of the radiation surface. The heating air passage 27 and the radiation surface heating air passage 28 are configured such that the high-temperature gas is guided from the high-temperature gas generating means 11 by the connecting air passage 17. With the above configuration, the high temperature gas generated by the combustion of the high temperature gas generating means 11 is guided by the connecting air passage 17 to the radiant heating air passage inlet 29 provided at the lower portion of the heat collection surface heating air passage 27, and the heat collection surface heating air. The heat collecting surface 25 is heated through the passage 27 while increasing the wind speed by the draft action, and is guided to the radiator heating air passage outlet 30 provided above the heat collecting surface heating air passage 27. Further, the high-temperature gas is guided from the connection air passage 17 to the radiation surface heating air passage 28, blown also to the radiation surface 26, rises from the lower end of the radiation surface 26 as an ascending current, and heats the radiation surface 26. For this reason, the radiator 24 is heated from both the heat collection surface 25 and the radiation surface 26 by the high-temperature gas. The radiator 24 is heated to about 300 ° C., far infrared rays are radiated from the radiation surface, and the room is heated by radiation. For this reason, a comfortable heating feeling can be obtained without directly hitting the human body.
[0019]
  In the configuration of the present embodiment, the heat transfer area of the high temperature gas and the radiator 24 is doubled with respect to the heating of only the heat collecting surface 25, so that the radiator temperature is the same as in the conventional example.The580 ° C. is sufficient for a temperature of 300 ° C. For this reason, it is not necessary to directly heat the heat exchanger with a flame using a line burner as the high temperature gas generating means 11, and a radiant heating can be performed with a high temperature gas using a circular burner with good exhaust gas characteristics. In addition, if a fin is arrange | positioned in the radiator 24, heat transfer efficiency can be improved more.
[0020]
  (Example 2)
  FIG.Of the present inventionExample 2It is the perspective view which notched a part of heating apparatus of this and showed the principal part.FIG., 11 is a high temperature gas generating means for generating a high temperature gas such as a circular burner for burning oil or gas fuel, and 31 is a heat collecting surface 32 heated by the heat of the high temperature gas and a radiation surface 33 for generating radiation energy. The radiator 31 is provided with through holes 34 arranged at a pitch of 20 mm with a diameter of 5 mm from the heat collection surface 32 to the radiation surface 33, and a radiator heating air for introducing high temperature gas to the heat collection surface 32 of the radiation body 31. A path 16 is attached, and the high-temperature gas is guided from the high-temperature gas generating means 11 to the radiator heating air path 16 by the connecting air path 17.
[0021]
  With the above configuration, the high-temperature gas generated by the combustion of the high-temperature gas generation means 11 is guided to the radiator heating air passage inlet 29 provided below the radiator heating air passage 16 through the connection air passage 17 and is then applied to the radiator heating air passage 16. The heat collecting surface 32 is heated while increasing the wind speed through the draft through the air, and is guided to the radiation surface 33 through the hole 34 to heat the radiation surface 33 as an upward flow. For this reason, the radiator 31 is heated from both the heat collection surface 32 and the radiation surface 33 by the high-temperature gas. The radiator 31 is heated to about 300 ° C., far infrared rays are radiated from the radiation surface 33, and the room is heated by radiation. For this reason, a comfortable heating feeling can be obtained without directly hitting the human body.
[0022]
  In the configuration of the present embodiment, the heat transfer area of the high temperature gas and the radiator 31 is doubled as compared with the heating of only the heat collecting surface 32, and the development of the boundary layer is reduced by the holes 34, so that the heat transfer coefficient is 15 W / m2K. Therefore, the heat of the high-temperature gas is efficiently transmitted to the radiation surface 33, and the temperature difference between the combustion gas temperature and the radiation surface 33 can be further reduced. In order to set the radiator temperature to 300 ° C. as in the conventional example, the high temperature gas temperature may be 490 ° C. For this reason, it is not necessary to directly heat the heat exchanger with a flame using a line burner as the high temperature gas generating means 11, and a radiant heating can be performed with a high temperature gas using a circular burner with good exhaust gas characteristics. Furthermore, since the boundary layer does not develop, the temperature change of the radiation surface 33 can be reduced.
[0023]
  (Example 3)
  FIG.Of the present inventionExample 3It is a perspective view which cuts out a part of heating apparatus and shows a principal part.FIG.InExample 2The same part has the same configuration, and the radiator 31 is provided with through holes 34 arranged in a staggered arrangement with a diameter of 5 mm and a pitch of 20 mm from the heat collecting surface 32 to the radiation surface 33.
[0024]
  With the above configuration, the high-temperature gas generated by the combustion of the high-temperature gas generation means 11 is led to the radiator heating air passage inlet 29 provided at the lower part of the radiator heating air passage 16 by the connecting air passage 17, and the radiator heating air passage 16 is provided. The heat collecting surface 33 is heated while increasing the wind speed through the draft through the holes, and is guided to the radiation surface 33 through the holes 34 provided in the staggered arrangement to heat the radiation surface 33 as an upward flow. ThereforeExample 2The heating efficiency of the radiating surface 33 is better than that of the above structure, and in order to set the radiant temperature to 300 ° C. as in the conventional example, the high temperature gas temperature may be 470 ° C.,The temperature difference of the radiation surface 33 can be made smaller.
[0025]
  (Example 4)
  FIG.Of the present inventionExample 4It is the perspective view which notched a part of heating apparatus of this and showed the principal part.FIG.InExample 2The same portion has the same configuration, and the radiator 31 is provided with holes 34 penetrating from the heat collecting surface 32 to the radiation surface 33 with a diameter of 5 mm so that the number increases as the distance from the connection air passage 17 increases. .
[0026]
  With the above configuration, the high-temperature gas generated by the combustion of the high-temperature gas generation means 11 is led to the radiator heating air passage inlet 29 provided at the lower part of the radiator heating air passage 16 by the connecting air passage 17, and the radiator heating air passage 16 is provided. The heat collecting surface 33 is heated while increasing the wind speed through the draft through the air, and is guided to the radiation surface 33 through the hole 34 to heat the radiation surface 33 as an upward flow. Although the temperature of the hot gas flowing in from the connection air passage 17 decreases as the distance from the connection air passage 17 decreases, the heating by the high temperature gas that has passed through the hole 34 of the radiation surface 33 increases as the distance from the connection air passage 17 increases.Example 2In addition to this feature, the temperature distribution of the radiator 31 in the radiator heating direction can be made uniform.
[0027]
  (Example 5)
  FIG.Of the present inventionExample 5It is the perspective view which notched a part of heating apparatus of this and showed the principal part.FIG., 11 is a high temperature gas generating means for generating a high temperature gas such as a circular burner for burning oil or gas fuel, and 35 is a heat collecting surface 36 heated by the heat of the high temperature gas and a radiation surface 37 for generating radiation energy. A through hole 38 having a diameter of 5 mm and a pitch of 20 mm is provided from the heat collection surface 36 to the radiation surface 37, and the pitch of the heat collection surface 36 and the radiation surface 37 is three times the projected area. The radiator has a shape that is continuously bent at a depth. A radiator heating air passage 16 that guides a high-temperature gas is attached to a heat collecting surface 37 of the radiator 35, and a connected wind is connected to the radiator heating air passage 16. The high-temperature gas is guided from the high-temperature gas generation means 11 by the path 17.
[0028]
  With the above configuration, the high-temperature gas generated by the combustion of the high-temperature gas generation means 11 is led to the radiator heating air passage inlet 29 provided at the lower part of the radiator heating air passage 16 by the connecting air passage 17, and the radiator heating air passage 16 is provided. The heat collecting surface 36 is heated while increasing the wind speed by the draft action through the air, and is guided to the radiation surface 37 through the hole 38 to heat the radiation surface 37 as an upward flow. For this reason, the radiator 36 is heated from both the heat collection surface 36 and the radiation surface 37 by the high-temperature gas. The radiator 35 is heated to about 300 ° C., far infrared rays are radiated from the radiation surface 37, and the room is heated by radiation. For this reason, a comfortable heating feeling can be obtained without directly hitting the human body. In the configuration of the present embodiment, the heat transfer area of the high temperature gas and the radiator 35 is doubled with respect to the heating of only the heat collecting surface, and the area of the heat collecting surface 36 is tripled with respect to the projected area. Therefore, the heat transfer area from the high temperature gas to the radiator 35 is 6 times, and the development of the boundary layer is reduced by the holes 38, and the heat transfer coefficient is 15 W / m 2 K. Therefore, the heat of the high-temperature gas is efficiently transmitted to the radiation surface 37, and the temperature difference between the combustion gas temperature and the radiation surface 37 can be further reduced. In order to set the radiator temperature to 300 ° C. as in the conventional example, the high temperature gas temperature may be 370 ° C. For this reason, it is not necessary to directly heat the heat exchanger with a flame using a line burner as the high temperature gas generating means 11, and to use a circular burner with good exhaust gas characteristics to indirectly produce a high temperature gas with the flame and perform radiant heating. I can do it.
[0029]
  Furthermore, since the area of the radiation surface 37 is three times the projected area, the apparent radiation rate is increased, and the radiation amount during heating can be increased even at the same temperature of the radiator 36.
[0030]
  Further, even when the radiator 35 becomes hot and thermally expands, the expansion is absorbed by the bent portion, so that deformation of the entire radiator can be prevented.
  (Example 6)
  FIG.Of the present inventionExample 6It is the perspective view which notched a part of heating apparatus of this and showed the principal part.FIG.11 is a high temperature gas generating means for generating a high temperature gas such as a circular burner for burning oil or gas fuel, and 39 is a heat collecting surface 40 heated by the heat of the high temperature gas and a radiation surface for generating radiation energy. 41 from the heat collecting surface 40Radiation surface 41Radiant surface that cuts and raises the radiant surface 41 as a heat transfer accelerating means and is provided with a hole 43 with a louver having an open end 42, and radiant heating that guides high temperature gas to the heat collecting surface 40 of the radiant member 39. An air passage 16 is attached, and a high-temperature gas generating means is connected to the radiator heating air passage 16 by a connecting air passage 17.11From this, high temperature gas is guided.
[0031]
  With the above configuration, the high-temperature gas generated by the combustion of the high-temperature gas generating means 11 is led to the radiator heating air passage inlet 18 provided below the radiator heating air passage 16 through the connecting air passage 17 and is then applied to the radiator heating air passage 16. The heating surface 40 is heated while increasing the wind speed by the drafting action, and is guided to the radiation surface 41 by the hole 43 provided with the louver and blown to the radiation surface 41 from the opening end 42 to radiate as an upward flow. The surface 41 is heated. For this reason, the radiator 39 is heated from both the heat collection surface 40 and the radiation surface 41 by the high-temperature gas. The radiator 39 is heated to about 300 ° C., far infrared rays are radiated from the radiation surface 41, and the room is heated by radiation. For this reason, a comfortable heating feeling can be obtained without directly hitting the human body.
[0032]
  In the configuration of the present embodiment, the heat transfer area of the high-temperature gas and the radiator 39 is doubled as compared with the heating of the heat collecting surface 40 alone, and the louver is also a radiator, so that the radiant surface is provided by the hole 43 provided with the louver. The area of 41 does not decrease. Moreover, the development of the boundary layer is reduced by the holes 43 with louvers, and the heat transfer coefficient is 25 W / m 2 K. Therefore, the heat of the high-temperature gas is efficiently transmitted to the radiation surface 41, and the temperature difference between the combustion gas temperature and the radiation surface 41 can be further reduced. In order to set the radiator temperature to 300 ° C. as in the conventional example, the high temperature gas temperature may be 410 ° C. For this reason, it is not necessary to directly heat the heat exchanger with a flame using a line burner as the high temperature gas generating means 11, and a radiant heating can be performed with a high temperature gas using a circular burner with good exhaust gas characteristics. Furthermore, since the boundary layer does not develop, the temperature change of the radiation surface can be reduced. Further, since the radiator is reinforced by the louvers, the deformation of the radiator can be reduced.
[0033]
  (Example 7)
  FIG.Of the present inventionExample 7It is the perspective view which notched a part of heating apparatus of this and showed the principal part.FIG.In this example, the same reference numerals as in Example 6 have the same configuration, and the heat transfer promoting means has a configuration in which the opening end 42 of the hole 43 provided with a louver is provided above the direction of gravity. With the above configuration, the high temperature gas is caused by the draft effect from the radiator heating air passage 16Radiant 39Since the air velocity from the opening end 42 increases and the heat transfer coefficient at the radiation surface 41 increases, the temperature difference between the hot gas and the radiation surface 41 can be further reduced. Furthermore, the pressure loss of high temperature gas blowing can be reduced, and the blower 44 can be downsized.
[0034]
  (Example 8)
  FIG.Of the present inventionExample 8It is the perspective view which notched a part of heating apparatus of this and showed the principal part.FIG.InExample 6The parts with the same numbers as those in FIG. 1 have the same configuration, and are provided with holes 43 with a louver provided as a heat transfer promotion means that penetrates the radiation surface 41 from the heat collection surface 40 to the radiation surface 41 in a staggered arrangement. . And by the said structure, since a high temperature gas flows into the radiation surface 41 from the opening end 42 through the hole 43 which attached the louver provided in the staggered arrangement from the radiator heating air path 16, and heats the radiation surface 41 uniformly, The heat transfer area when the gas transfers heat to the radiator 39 is further expanded, the heat of the high temperature gas is efficiently transmitted to the radiation surface 41, and the temperature difference between the temperature of the high temperature gas and the radiation surface can be further reduced.
[0035]
  (Example 9)
  FIG.Of the present inventionExample 9It is the perspective view which notched a part of heating apparatus of this and showed the principal part.FIG.InExample 6The same numbered parts have the same configuration, and the radiator 39 has a heat collecting surface 40.Radiation surface 41As a means to promote heat transferRadiation surface 41Are arranged so that the number of the holes 43 provided with louvers with the open ends 42 increases as the distance from the connection air passage 17 increases.
[0036]
  With the above configuration, the high-temperature gas generated by the combustion of the high-temperature gas generating means 11 is led to the radiator heating air passage inlet 18 provided below the radiator heating air passage 16 through the connecting air passage 17 and is then applied to the radiator heating air passage 16. The heat collecting surface 40 is heated while increasing the wind speed by the draft action through the air, and is guided to the radiation surface 41 through the hole 43 provided with the louver to heat the radiation surface 41 as an ascending current. Hot gas flowing from the connecting air passage 17ofAlthough the temperature decreases as the distance from the connection air passage 17 decreases, the heating by the high-temperature gas that has passed through the louvered hole 43 of the radiation surface 41 increases the distance from the connection air passage 17.Of hole 43Because the number increasesExample 6In addition to this feature, the temperature distribution in the radiator heating direction of the radiator can be made uniform.
[0037]
  (Example 10)
  FIG.Of the present inventionExample 10It is the perspective view which notched a part of heating apparatus of this and showed the principal part.
[0038]
  FIG., 11 is a high temperature gas generating means for generating a high temperature gas such as a circular burner for burning oil or gas fuel, and 45 is a heat collecting surface 46 heated by the heat of the high temperature gas and a radiation surface 47 for generating radiant energy. The radiant body is provided with a hole 49 with a louver having an opening end 48 that cuts and raises the radiant surface 47 as heat transfer promoting means from the heat collecting surface 46 to the radiant surface 47. The radiator 47 is continuously bent at a pitch and depth such that the area of the radiator 47 is tripled, and a radiator heating air passage 16 for guiding a high-temperature gas is attached to the heat collecting surface 46 of the radiator 45, thereby radiating. The body heating air passage 16 is configured such that the high temperature gas is guided from the high temperature gas generating means 11 by the connecting air passage 17. With the above configuration, the high temperature gas generated by the combustion of the high temperature gas generating means 11 is guided to the radiator heating air passage inlet 29 provided at the lower portion of the radiator heating air passage 16 through the connecting air passage 17, and the radiator heating air passage 16. The heating surface 46 in the middle of the radiator heating air passage 16 is heated while increasing the wind speed by the draft action, and is guided to the radiation surface 47 from the opening end 48 through the hole 49 provided with a louver. The radiation surface 47 is heated as an ascending current. For this reason, the radiator 45 is heated from both the heat collection surface 46 and the radiation surface 47 by the high-temperature gas. The radiator 45 is heated to about 300 ° C., far infrared rays are radiated from the radiation surface 47, and the room is heated by radiation. For this reason, a comfortable heating feeling can be obtained without directly hitting the human body. In the configuration of the present embodiment, the heat transfer area of the high temperature gas and the radiator 45 is doubled with respect to the heating of only the heat collecting surface 46, and the area of the heat collecting surface 46 is tripled with respect to the projected area. Therefore, the heat transfer area from the high temperature gas to the radiator 45 is 6 times, and the development of the boundary layer is reduced by the louvered holes 49, and the heat transfer coefficient is 25 W / m 2 K. . Therefore, the heat of the high-temperature gas is efficiently transmitted to the radiation surface 47, and the temperature difference between the combustion gas temperature and the radiation surface 47 can be further reduced. In order to set the radiator temperature to 300 ° C. as in the conventional example, the high temperature gas temperature may be 350 ° C. For this reason, it is not necessary to directly heat the heat exchanger with a flame using a line burner as the high-temperature gas generating means 11, and to use a circular burner with good exhaust gas characteristics to produce high-temperature gas indirectly with a flame and perform radiant heating. I can do it.
[0039]
  Furthermore, since the area of the radiation surface 47 is three times as large as the projected area, the apparent radiation rate is increased, and the radiation amount during heating can be increased even at the same temperature of the radiation body 47.
[0040]
  Further, even when the radiating surface 47 becomes hot and thermally expands, the radiant is reinforced by the louver and the expansion is absorbed by the bent portion, so that deformation of the entire radiant body can be prevented.
[0041]
【The invention's effect】
  As explained aboveAccording to the present inventionAccording to the heating deviceThe hot gas of the hot gas generating means guided to the radiator heating air passage through the connection air passage is guided as an updraft from the lower end of the radiator, and heats both the heat collecting surface and the radiation surface of the radiator. Therefore, the heat transfer area where the high temperature gas transfers heat to the radiant is doubled, the heat of the high temperature gas is efficiently transferred to the radiant surface, and the temperature difference between the high temperature gas and the radiant surface can be reduced,By finsAlsoSince the heat transfer area when the high temperature gas transfers heat to the radiator is expanded, the heat of the high temperature gas is efficiently transferred to the radiation surface by the fins, and the temperature difference between the high temperature gas and the radiation surface can be reduced.it can.
[0042]
  Further, according to the present inventionAccording to the heating device, the heat collection surface of the radiator is provided with heat transfer promotion means such as protrusions and cuts, so the development of the boundary layer is reduced, the heat transfer coefficient is increased, and the heat of the hot gas is efficient. It is often transmitted to the radiation surface, and the temperature difference between the temperature of the hot gas and the radiation surface can be made smaller and the temperature change of the radiation surface can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main part of a heating device according to a first embodiment of the present invention by cutting out a part thereof.
FIG. 2 is a perspective view showing a main part with a part of the heating device cut out in the second embodiment.
FIG. 3 is a perspective view showing a main part of the heating device according to the third embodiment with a part cut away.
FIG. 4 is a perspective view showing a main part of the heating device in Example 4 with a part cut away.
FIG. 5 is a perspective view showing a main part of the heating device according to Example 5 with a part cut away.
FIG. 6 is a perspective view showing a main part of the heating device according to Example 6 with a part cut away.
7 is a perspective view showing a main part of the heating apparatus according to Example 7 with a part cut away. FIG.
FIG. 8 is a perspective view showing a main part of the heating apparatus according to Example 8 with a part cut away.
FIG. 9 is a perspective view showing a main part of the heating apparatus according to Example 9 with a part cut away.
FIG. 10 is a perspective view showing a main part of the heating device according to Example 10 with a part cut away.
FIG. 11The perspective view which showed the principal part by notching part of the conventional heating apparatus
[Explanation of symbols]
  11 High temperature gas generation means
  24, 31, 35, 39, 45 Radiator
  25, 32, 36, 40, 46 Heat collecting surface
  26, 33, 37, 41, 47 Radiation surface
  16 Radiator heating air passage
  17 Connecting air passage
  18, 29 Radiant heating airway entrance
  30 Radiator heating airway exit
  27 Heating surface heating air passage
  28 Radiation surface heating air passage
  34, 38 holes
  42, 48 Open end
  43, 49 holes with louvers

Claims

A radiation having a high temperature gas generating means for generating a high temperature gas, a heat collection surface heated by the heat of the high temperature gas and a radiation surface for generating radiant energy, and arranged from the front side to the upper side of the high temperature gas generation means. Body, a radiator heating air passage that is formed to face the heat collecting surface of the radiator toward the upper end from the lower end, and guides a high temperature gas to the heat collecting surface, a lower portion of the radiator heating air passage , and the high temperature A connecting air passage connecting the gas generating means, the high temperature gas of the high temperature gas generating means is guided as an updraft from the lower end of the radiator on both the heat collecting surface and the radiation surface of the radiator, and the radiator is a heat collecting surface. A heating apparatus configured to heat from both sides of a radiant surface and having fins disposed in the radiant body .

The hot gas generating means for generating the high temperature gas and the heat collecting surface heated by the heat of the high temperature gas and the radiation surface for generating radiant energy are both arranged from the front side to the upper side of the high temperature gas generating means. And a radiator provided with heat transfer promoting means on the heat collecting surface, and a radiator that is formed to face the heat collecting surface of the radiator from the lower end toward the upper end, and to guide the high temperature gas to the heat collecting surface. A heating air passage, and a connecting air passage connecting the lower portion of the radiator heating air passage and the high-temperature gas generation means, and the high-temperature gas of the high-temperature gas generation means is applied to the radiator on the heat collecting surface and the radiation surface of the radiator. A heating device that is configured to guide the radiant body from both the heat collecting surface and the radiant surface as a rising air flow from the lower end of the radiant .

The heating device according to claim 2, wherein the radiant body penetrates the radiant surface from the heat collecting surface, and heat promoting means is formed by holes provided with louvers to guide the high temperature gas to the radiant surface of the radiant body .

The heating device according to claim 3 , wherein the opening end of the hole provided with the louver is above the gravity direction .

The heating apparatus of Claim 3 or Claim 4 which provided the hole which attached the louver to the radiator at zigzag arrangement | positioning .

The heating device according to claim 3 or claim 4 , wherein the number of holes provided with louvers in the radiator is increased as the distance from the connection air passage increases .

The heating device according to any one of claims 3 to 6 , wherein the radiator has a continuously bent shape .