JP2840375B2 - Hot air heater - Google Patents
Hot air heaterInfo
- Publication number
- JP2840375B2 JP2840375B2 JP10850990A JP10850990A JP2840375B2 JP 2840375 B2 JP2840375 B2 JP 2840375B2 JP 10850990 A JP10850990 A JP 10850990A JP 10850990 A JP10850990 A JP 10850990A JP 2840375 B2 JP2840375 B2 JP 2840375B2
- Authority
- JP
- Japan
- Prior art keywords
- wind tunnel
- heat shield
- hot air
- aluminum
- 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.)
- Expired - Fee Related
Links
- 238000002485 combustion reaction Methods 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229910001327 Rimmed steel Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 238000002845 discoloration Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 229910000680 Aluminized steel Inorganic materials 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical class Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、石油ファンヒータ、ガスファンヒータ等の
温風暖房機に関する。The present invention relates to a hot air heater such as an oil fan heater and a gas fan heater.
（ロ）従来の技術 従来、この種の温風暖房機においては、例えば、特公
平１−37653号公報で開示されているように、温風吹出
口及び対流用送風機を有する本体ケース内に風胴を設
け、この風胴内に開放式の燃焼筒を設け、この燃焼筒と
風胴の頂部との間に遮熱板を設け、更に、風胴の頂部に
は過熱等の異常温度を検出して作動するハイリミットサ
ーモ等の温度検出器を取り付けることにより、対流用送
風機が故障したりフィルターが目詰まりして本体ケース
内が異常温度となった場合に、バーナの運転を停止させ
て安全性を高めたものが知られている。(B) Conventional technology Conventionally, in this type of hot air heater, for example, as disclosed in Japanese Patent Publication No. 1-37653, a wind tunnel is provided in a main body case having a hot air outlet and a convection blower. An open combustion cylinder is provided in the wind tunnel, a heat shield plate is provided between the combustion cylinder and the top of the wind tunnel, and an abnormal temperature such as overheating is detected at the top of the wind tunnel. By installing a temperature detector such as a high-limit thermometer that operates with the convection blower, if the convection blower breaks down or the filter becomes clogged and the temperature inside the main unit case becomes abnormal, the burner operation is stopped to ensure safety. Are known.
（ハ）発明が解決しようとする課題 ところで、上述したような温風暖房機では、遮熱板が
ステンレス鋼板やアルミメッキ鋼板等の耐熱性を有する
材料にて作られているが、この遮熱板は燃焼筒から流出
する燃焼ガスにより直接加熱される上、近年では機器が
極めて小型変されている関係上、バーナの強燃焼時には
約400〜450度の高温となり、長期間使用すると、ステン
レス鋼板で作られた遮熱板では、表面に酸化被膜が形成
されて濃い紫色に熱変色し、また、アルミメッキ鋼板で
作られた遮熱板では、表面に鉄−アルミニュウムの合金
層が形成されて暗褐色に熱変色するものである。従っ
て、この遮熱板は、新品の時よりも使い込んで変色した
時の方が熱吸収が良くなり、温度検出器を取り付けた風
胴の頂部への放熱量も多くなってしまう。そのため、遮
熱板の経時変化に伴って温度検出器の作動が早まり、対
流用送風機が故障したりフィルターが目詰まりする前に
温度検出器が作動して、正常状態にも拘らず運転を停止
させてしまう心配があった。(C) Problems to be Solved by the Invention By the way, in the warm air heater as described above, the heat shield plate is made of a heat-resistant material such as a stainless steel plate or an aluminum-plated steel plate. The plate is directly heated by the combustion gas flowing out of the combustion cylinder, and in recent years the equipment has been extremely small in size. In the heat shield plate made of, an oxide film is formed on the surface and the heat discolors to deep purple, and in the heat shield plate made of aluminized steel plate, an iron-aluminum alloy layer is formed on the surface. It is thermally discolored to dark brown. Therefore, when the heat shield plate is used and discolored, the heat absorption becomes better and the amount of heat radiation to the top of the wind tunnel to which the temperature detector is attached becomes larger than when the heat shield plate is new. Therefore, the operation of the temperature detector is accelerated as the heat shield plate changes over time, and the temperature detector is activated before the convection blower breaks down or the filter is clogged, and the operation stops even though it is normal I was worried about it.
本発明は上述の事実に鑑みてなされたものであり、遮
熱板の経時変化を抑制することにより、正常状態にも拘
らず機器が運転を停止してしまうような不具合を防止す
ることを目的としている。The present invention has been made in view of the above-described facts, and has as its object to prevent a problem that a device stops operating in spite of a normal state by suppressing a temporal change of a heat shield plate. And
（ニ）課題を解決するための手段 本発明は、温風吹出口及び対流用送風機を有する本体
ケースと、この本体ケース内に設けられた風胴と、この
風胴の頂部に取り付けられ、異常温度を検出して運転を
停止させるための温度検出器と、風胴内に設けられた開
放式の燃焼筒と、この燃焼筒と風胴の頂部との間に設け
られた遮熱板とを備えたものにおいて、前記遮熱板をフ
リー窒素の含有量の多い鉄を主成分とする母材の表面に
アルミニウムを溶融メッキ処理したアルミリムド鋼で構
成したものである。(D) Means for Solving the Problems The present invention provides a main body case having a hot air outlet and a convection blower, a wind tunnel provided in the main body case, and an abnormal temperature A temperature detector for detecting and stopping the operation, an open combustion cylinder provided in the wind tunnel, and a heat shield plate provided between the combustion cylinder and the top of the wind tunnel. Preferably, the heat shield plate is made of aluminum rimmed steel obtained by hot-dip plating aluminum on the surface of a base material mainly composed of iron having a high content of free nitrogen.
（ホ）作 用 このように構成すると、長期間の使用による遮熱板の
熱変色が防止され、遮熱板の熱吸収率が経時変化しない
ようにできるので、遮熱板から風胴の頂部への放熱量が
経時変化に伴って増加することがなく、従来のように、
温度検出器の作動が早まって、対流用送風機が故障した
りフィルターが目詰まりする前に温度検出器が作動し
て、正常状態にも拘わらず運転を停止させてしまうよう
な不具合を防止できる。(E) Operation With this configuration, thermal discoloration of the heat shield plate due to long-term use is prevented, and the heat absorption rate of the heat shield plate can be prevented from changing with time. The amount of heat dissipated to does not increase with aging, as in the past,
It is possible to prevent such a problem that the temperature detector is activated before the temperature detector is activated and the convection blower breaks down or the filter is clogged, and the operation is stopped in spite of a normal state.
（ヘ）実施例 以下、本発明の実施例を図に基いて説明する。(F) Example Hereinafter, an example of the present invention will be described with reference to the drawings.
図において、（１）は前面下部に温風吹出口（２）を
有するとともに背部に対流用送風機（３）を有する箱形
の本体ケースであり、この本体ケース（１）内には、一
端が前記温風吹出口（２）に連通し、且つ、他端が前記
対流用送風機（３）に連通した風胴（４）が配置されて
いる。（５）は本体ケース（１）内の下部に配置した石
油燃料を気化して燃焼させるバーナであり、このバーナ
（５）は給気用送風機（5A）と気化筒（5B）とこの気化
筒（5B）の上部に装着したバーナヘッド（5C）から構成
してある。（６）は前記風胴（４）内に設けられてた開
放式の燃焼筒であり、この燃焼筒（６）は前記バーナ
（５）の上部の周囲を覆うように風胴（４）の底部（4
A）に立てて設けられ、その上部には燃焼ガスを流出さ
せる開口（７）が形成されている。前記対流用送風機
（３）は燃焼筒（６）に対向するプロペラファン（3A）
とモータ（3B）からなり、そのモータ（3B）はフィルタ
ー兼用のファンガード（８）に固定されている。（９）
は前記風胴（４）の頂部（4B）に取り付けられたハイリ
ミットサーモ等の温度検出器であり、この温度検出器
（９）の作動温度は約100度に設定されており、この温
度検出器（９）が風胴（４）の頂部（4B）の異常温度上
昇を検出して作動すると、少なくとも前記バーナ（５）
の運転が停止されるようになっている。In the figure, (1) is a box-shaped main body case having a hot air outlet (2) at the lower part on the front side and a convection blower (3) at the back part. A wind tunnel (4) communicating with the hot air outlet (2) and having the other end communicating with the convection blower (3) is arranged. (5) is a burner which vaporizes and burns the petroleum fuel arranged in the lower part of the main body case (1), and this burner (5) is an air supply blower (5A), a vaporizing cylinder (5B) and this vaporizing cylinder. It consists of a burner head (5C) mounted on top of (5B). (6) is an open-type combustion cylinder provided in the wind tunnel (4). The combustion cylinder (6) covers the upper part of the burner (5) so as to cover the periphery thereof. Bottom (4
A) is provided upright, and an opening (7) through which a combustion gas flows out is formed in the upper part. The convection blower (3) is a propeller fan (3A) facing the combustion tube (6).
And a motor (3B), and the motor (3B) is fixed to a fan guard (8) serving also as a filter. (9)
Is a temperature detector such as a high-limit thermostat attached to the top (4B) of the wind tunnel (4). The operating temperature of the temperature detector (9) is set to about 100 degrees. When the vessel (9) detects an abnormal temperature rise at the top (4B) of the wind tunnel (4) and operates, at least the burner (5)
Operation is stopped.
（10）は燃焼筒（６）と風胴（４）の頂部（4B）との
間に設けられた遮熱板であり、この遮熱板（10）は耐熱
性及び耐熱変色性に優れた材料にて作られている。即
ち、この遮熱板（10）は、フリー窒素（Ｎ）の含有量の
多い鉄を主成分とする母材の表面にアルミニュウムを溶
融メッキ処理した特殊なアルミメッキ鋼板（アルミリム
ド鋼）にて作られている。この特殊なアルミメッキ鋼板
は、アルミメッキ層と母材との境界部分に窒化アルミ
（AlN）層が生成され、この窒化アルミ層が鉄−アルミ
ニュウム合金層の形成を抑制する働きをしている。実験
によると、一般のアルミメッキ鋼板は摂氏500度の高温
下において約１時間で鉄−アルミニュウム合金層が形成
され、変色し始めるが、上述した特殊なアルミメッキ鋼
板（アルミリムド鋼）は摂氏550度の高温下において約5
000時間でも変色しなかった。(10) is a heat shield provided between the combustion tube (6) and the top (4B) of the wind tunnel (4). The heat shield (10) has excellent heat resistance and heat discoloration resistance. Made of materials. That is, the heat shield plate (10) is made of a special aluminum-plated steel plate (aluminum rimmed steel) in which the surface of a base material mainly containing iron having a high content of free nitrogen (N) is hot-dip-coated with aluminum. Have been. In this special aluminum-plated steel sheet, an aluminum nitride (AlN) layer is generated at the boundary between the aluminum plating layer and the base material, and this aluminum nitride layer functions to suppress the formation of an iron-aluminum alloy layer. According to the experiment, the iron-aluminum alloy layer is formed in about 1 hour under the high temperature of 500 degrees Celsius at the high temperature of 500 degrees Celsius, and the discoloration starts. About 5 at high temperature
The color did not change even after 000 hours.
上述の構成において、バーナ（５）の燃焼による燃焼
ガスは燃焼筒（６）内を上昇し、燃焼筒（６）上部の開
口（７）を通り風胴（４）内に放出され、本体ケース
（１）の背部に設けた対流用送風機（３）から送られる
風と混合され、温風となって温風吹出口（２）から吹き
出され、室内を暖房する。In the above-described configuration, the combustion gas generated by the combustion of the burner (5) rises in the combustion tube (6), passes through the opening (7) above the combustion tube (6), and is discharged into the wind tunnel (4). The air is mixed with the air sent from the convection blower (3) provided at the back of (1), becomes hot air, and is blown out from the hot air outlet (2) to heat the room.
上述の実施例によれば、燃焼筒（６）と異常温度を検
出して少なくともバーナ（５）の運転を停止させるため
の温度検出器（９）を取り付けた風胴（４）の頂部（4
B）との間に遮熱板（10）を設け、この遮熱板（10）を
耐熱性及び耐熱変色性に優れた特殊なアルミメッキ鋼板
（アルミリムド鋼）で作ることにより、長期間の使用に
よる遮熱板（10）の黒色化熱変色を防止できるので、遮
熱板（10）の熱吸収率が経時変化することがなく、温度
検出器（９）を取り付けた風胴（４）の頂部（4B）への
放熱量も、経時変化に伴って増加することがないもので
あり、従来のように温度検出器（９）の作動が早まっ
て、対流用送風機が故障したりフィルターが目詰まりす
る前に温度検出器が作動して、正常状態にも拘らず運転
を停止させてしまうような不具合を防止できる。According to the above-described embodiment, the top (4) of the wind tunnel (4) equipped with the temperature detector (9) for detecting the combustion cylinder (6) and the abnormal temperature and at least stopping the operation of the burner (5).
B) A heat shield plate (10) is provided between the heat shield and a special aluminum-plated steel plate (aluminum rimmed steel) with excellent heat resistance and heat discoloration resistance, so that it can be used for a long time. The thermal barrier plate (10) can be prevented from thermal discoloration due to the blackening of the heat shield plate (10). The amount of heat released to the top (4B) does not increase with the passage of time, and the operation of the temperature detector (9) is accelerated, and the convection blower breaks down or the filter becomes unusual. It is possible to prevent such a problem that the temperature detector operates before clogging and the operation is stopped in spite of the normal state.
（ト）発明の効果 この発明は以上のように構成されているので、長期間
の使用による遮熱板の熱変色を防止し、遮熱板の熱吸収
率が経時変化しないようにしたので、遮熱板から風胴の
頂部への放熱量が経時変化に伴って増加するようなこと
がなく、対流用送風機が故障したりフィルターが目詰ま
りする前に温度検出器が作動して、正常状態にも拘らず
運転を停止させてしまうような不具合を防ぐことがで
き、機器の信頼性を高めることができる。(G) Effect of the Invention Since the present invention is configured as described above, thermal discoloration of the heat shield plate due to long-term use is prevented, and the heat absorption rate of the heat shield plate is prevented from changing with time. The amount of heat released from the heat shield to the top of the wind tunnel does not increase with time, and the temperature detector is activated before the convection blower breaks down or the filter is clogged, and the normal state Nevertheless, it is possible to prevent a problem that the operation is stopped in spite of this, and it is possible to enhance the reliability of the device.
【図面の簡単な説明】 図は本発明の一実施例を示す温風暖房機の縦断側面図で
ある。 （１）……本体ケース、（２）……温風吹出口、（３）
……対流用送風機、（４）……風胴、（６）……燃焼
筒、（９）……温度検出器、（10）……遮熱板。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a vertical side view of a hot air heater showing one embodiment of the present invention. (1) ... body case, (2) ... hot air outlet, (3)
... convection blower, (4) ... wind tunnel, (6) ... combustion cylinder, (9) ... temperature detector, (10) ... heat shield plate.
Claims (1)
ースと、この本体ケース内に設けられた風胴と、この風
胴の頂部に取り付けられ、異常温度を検出して運転を停
止させるための温度検出器と、風胴内に設けられた開放
式の燃焼筒と、この燃焼筒と風胴の頂部との間に設けら
れた遮熱板とを備えたものにおいて、前記遮熱板をフリ
ー窒素の含有量の多い鉄を主成分とする母材の表面にア
ルミニウムを溶融メッキ処理したアルミリムド鋼で構成
したことを特徴とする温風暖房機。1. A main body case having a hot air outlet and a convection blower, a wind tunnel provided in the main body case, and mounted on the top of the wind tunnel for detecting abnormal temperature and stopping operation. A temperature detector, an open combustion cylinder provided in the wind tunnel, and a heat shield provided between the combustion cylinder and the top of the wind tunnel, wherein the heat shield is free. A warm air heater characterized by comprising aluminum rimmed steel obtained by hot-dip plating aluminum on the surface of a base material mainly composed of iron having a high nitrogen content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10850990A JP2840375B2 (en) | 1990-04-24 | 1990-04-24 | Hot air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10850990A JP2840375B2 (en) | 1990-04-24 | 1990-04-24 | Hot air heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH046348A JPH046348A (en) | 1992-01-10 |
| JP2840375B2 true JP2840375B2 (en) | 1998-12-24 |
Family
ID=14486585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10850990A Expired - Fee Related JP2840375B2 (en) | 1990-04-24 | 1990-04-24 | Hot air heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2840375B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60138327A (en) * | 1983-12-24 | 1985-07-23 | Rinnai Corp | Disorder detector in burner |
| JPS6376861A (en) * | 1986-09-19 | 1988-04-07 | Nippon Steel Corp | Stainless steel for burner and its production |
-
1990
- 1990-04-24 JP JP10850990A patent/JP2840375B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH046348A (en) | 1992-01-10 |
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