JPH03195861A - Immersion pipe heater - Google Patents
Immersion pipe heaterInfo
- Publication number
- JPH03195861A JPH03195861A JP1335713A JP33571389A JPH03195861A JP H03195861 A JPH03195861 A JP H03195861A JP 1335713 A JP1335713 A JP 1335713A JP 33571389 A JP33571389 A JP 33571389A JP H03195861 A JPH03195861 A JP H03195861A
- Authority
- JP
- Japan
- Prior art keywords
- combustion gas
- combustion
- burner
- liquid
- pipe
- 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
- 238000007654 immersion Methods 0.000 title claims description 20
- 239000000567 combustion gas Substances 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 238000006555 catalytic reaction Methods 0.000 claims description 17
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 13
- 229910002090 carbon oxide Inorganic materials 0.000 abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 abstract 4
- 238000006243 chemical reaction Methods 0.000 abstract 3
- 238000007599 discharging Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical class [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Combustion Of Fluid Fuel (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Gas Burners (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、例えば金属溶湯等の液状物質を加熱するヒー
タに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a heater for heating a liquid substance such as molten metal.
（従来の技術）
従来の浸管ヒータとしては、例えば第４図に示すものが
ある。この浸管ヒータａは、加熱対象とする液体すの中
に、液面上に、燃焼ガス流入口Ｃと流出口ｄを有する管
ｅを、液体すの中に浸漬し、そして前記液面に位置する
流入口Ｃ内にバーナｆを設置して、該バーナに於いて発
生する高温の燃焼ガスを管ｅ内に送り込んで、管ｅそし
て液体ｂを加熱するものである。(Prior Art) As a conventional immersion tube heater, there is one shown in FIG. 4, for example. This immersion tube heater a is constructed by immersing a tube e having a combustion gas inlet C and an outlet d above the liquid level in a liquid to be heated, and then placing it above the liquid level. A burner f is installed in the inlet C, and high-temperature combustion gas generated by the burner is sent into the tube e to heat the tube e and the liquid b.
（発明が解決しようとする課題）
前記のような従来の浸管ヒータａでは、バーナｆを液体
すの表面よりも下に位置させると、バーナｆの火炎が急
速に冷やされて燃焼が不完全となり、この結果−酸化炭
素が発生して燃焼ガス流出口ｄより外部に排出されてし
まうので、これを防ぐためバーナｆは図示の通り、液体
すの表面よりも上に位置させている。しかし、このよう
にバーナｆを液体すの表面よりも上に位置させたことに
より、バーナｆ周囲の管ｅが非常に高い温度になって危
険であることに加え、液体すの加熱に寄与しない無駄な
放熱が多くなって熱効率が低いという課題がある。(Problems to be Solved by the Invention) In the conventional immersion tube heater a as described above, when the burner f is located below the surface of the liquid, the flame of the burner f is rapidly cooled and combustion is incomplete. As a result, carbon oxide is generated and discharged to the outside from the combustion gas outlet d. To prevent this, the burner f is positioned above the surface of the liquid as shown in the figure. However, by locating the burner f above the surface of the liquid bath, the temperature of the tube e surrounding the burner f becomes extremely high, which is dangerous, and it does not contribute to the heating of the liquid bath. There is a problem that there is a lot of wasted heat radiation and the thermal efficiency is low.
さらに、従来のこのような浸管ヒータａにおいては、燃
焼ガスの流速が小さいと、管ｅの内側面に生じる境膜の
影響により、燃焼ガスから液体すへの伝熱効率は極めて
悪くなるので、流速をある程度大きくする必要がある。Furthermore, in the conventional immersion tube heater a, if the flow rate of the combustion gas is low, the efficiency of heat transfer from the combustion gas to the liquid becomes extremely poor due to the influence of the film formed on the inner surface of the tube e. It is necessary to increase the flow velocity to some extent.
しかし、あまり流速を上げ過ぎると、今度は管ｅの共鳴
現象により大きな騒音が発生してしまうのであまり大き
くすることができず、したがって加熱効率が低く抑えら
れてしまうという課題もある。However, if the flow rate is increased too much, a large noise will be generated due to the resonance phenomenon of the tube e, so it cannot be increased too much, and therefore there is a problem that the heating efficiency is kept low.
本発明は以上のような課題を解決することを目的とする
ものである。The present invention aims to solve the above problems.
（課題を解決するための手段）
前記課題を解決するための手段を、実施例に対応する第
１図〜第３図に基づいて説明すると、まず特許請求の範
囲第１項記載の浸管ヒータ１は、加熱対象液体２内に、
燃焼ガス流入口３と流出口４を有する管５を、流入口３
と流出口４の双方が液体２の表面よりも上に位置するよ
うに、液体２内に浸漬して、液体２内に燃焼ガス流路６
を形成体２の液面下になるように設置すると共に、燃焼
ガス流路６のバーナ７よりも下流側の適所に、燃焼ガス
が通過可能な触媒反応部９を構成したものである。(Means for Solving the Problems) The means for solving the problems will be explained based on FIGS. 1 to 3 corresponding to the embodiments. First, the immersion tube heater according to claim 1 1 is in the liquid to be heated 2,
A pipe 5 having a combustion gas inlet 3 and an outlet 4 is connected to the inlet 3
The combustion gas flow path 6 is immersed in the liquid 2 such that both the and the outlet 4 are located above the surface of the liquid 2.
is installed below the liquid level of the forming body 2, and a catalytic reaction section 9 through which the combustion gas can pass is constructed at a suitable location downstream of the burner 7 in the combustion gas passage 6.
次に、第２項記載の浸管ヒータ１は前記第１項記載の触
媒反応部９の担体１０を、セラミックハニカム１１で構
成したものである。Next, in the immersion tube heater 1 described in item 2, the carrier 10 of the catalytic reaction section 9 described in item 1 is made of a ceramic honeycomb 11.
第３項記載の浸管ヒータ１は、前記第１項記載の燃焼ガ
ス流路６の触媒反応部９よりも下流側を、その上流側よ
りも細く絞ったものである。The immersion tube heater 1 described in item 3 is such that the downstream side of the catalytic reaction section 9 of the combustion gas flow path 6 described in item 1 is narrowed narrower than the upstream side thereof.
第４項記載の浸管ヒータ１は、前記第１項記載の触媒反
応部９の担体１０をセラミックハニカム１１で構成する
と共に、燃焼ガス流路６の触媒反応部９よりも下流側を
、その上流側よりも細く絞ったものである。In the immersion tube heater 1 described in item 4, the carrier 10 of the catalytic reaction section 9 described in item 1 is constituted by a ceramic honeycomb 11, and the downstream side of the catalytic reaction section 9 of the combustion gas flow path 6 is It is narrower than the upstream side.
また第５項記載の浸管ヒータ１は、前記第１項記載の燃
焼ガス流路６の触媒反応部９よりも下流側をコルゲート
管１２で構成したものである。In the immersion tube heater 1 described in item 5, the downstream side of the catalytic reaction section 9 of the combustion gas flow path 6 described in item 1 is constructed with a corrugated pipe 12.
（作用および実施例）
バーナ７を点火し、これを燃焼状態とすれば、高温の燃
焼ガスが発生し、燃焼ガス流路６を下流側すなわち燃焼
ガス流出口４に向って流れながら、管５そしてその周囲
の液体２を加熱する。燃焼ガス流路６の途中には、触媒
反応部９を構成しているが、例えばこの担体１０を、例
えばセラミックハニカム１１で構成すれば、これには多
数の連通孔１３が開いているので、燃焼ガスはこの連通
孔１３を通って上流側から下流側へ流れることができ、
そして流出口４に達した燃焼ガスは管５外に排出される
。(Operations and Examples) When the burner 7 is ignited and put into a combustion state, high-temperature combustion gas is generated, and while flowing through the combustion gas passage 6 toward the downstream side, that is, toward the combustion gas outlet 4, the pipe 5 Then, the liquid 2 around it is heated. A catalytic reaction section 9 is formed in the middle of the combustion gas flow path 6, and if this carrier 10 is formed of, for example, a ceramic honeycomb 11, a large number of communication holes 13 are opened therein. Combustion gas can flow from the upstream side to the downstream side through this communication hole 13,
The combustion gas that has reached the outlet 4 is discharged to the outside of the pipe 5.
本発明においては、さらにバーナ７を、少なくとも、そ
の先端部８を加熱対象液体２の表面下になるように設置
したので、液体２の表面よりも上に位置させた場合に比
較して、バーナ７周囲の管５が非常に高い温度に上昇す
ることはなく、したがって安全であると同時に、液体２
の加熱に寄与しない無駄な放熱量を減らすことができる
。もちろん、このようにバーナ７の先端部８を液体２の
表面下に位置させると、バーナ７の火炎が急速に冷やさ
れて、燃焼がある程度不完全となり、そして−酸化炭素
を発生するが、燃焼ガス流路６のバーナ７の下流側適所
に触媒反応部９を構成したため、燃焼ガスがここを通過
する際に燃焼ガスと共に流路６すなわち管５内を流れる
燃焼用残存空気と速やかに反応して完全燃焼するので、
流出口４から有害な一酸化炭素が排出するのを抑制でき
ると共に、無駄なエネルギー放出がないので高い燃焼効
率を維持することができる。In the present invention, the burner 7 is further installed so that at least its tip 8 is below the surface of the liquid 2 to be heated. 7 The surrounding tube 5 does not rise to a very high temperature and is therefore safe, while at the same time the liquid 2
The amount of wasted heat radiation that does not contribute to heating can be reduced. Of course, by locating the tip 8 of the burner 7 below the surface of the liquid 2, the flame of the burner 7 is rapidly cooled, the combustion is somewhat incomplete, and - producing carbon oxides, but the combustion Since the catalytic reaction section 9 is configured at a suitable location on the downstream side of the burner 7 in the gas flow path 6, when the combustion gas passes through here, it quickly reacts with the combustion residual air flowing in the flow path 6, that is, the pipe 5, together with the combustion gas. Since it burns completely,
Not only can harmful carbon monoxide be suppressed from being discharged from the outlet 4, but also high combustion efficiency can be maintained since no wasteful energy is released.
触媒反応部９の担体１０をセラミックハニカム１１で構
成すれば、前記のように触媒反応部９を燃焼ガスが通過
可能に構成し得ることに加えて、セラミックハニカム１
１には蓄熱作用があり、したがって液体２への伝熱効率
をさらに改善することができる。If the carrier 10 of the catalytic reaction section 9 is made of the ceramic honeycomb 11, the catalytic reaction section 9 can be configured to allow combustion gas to pass therethrough as described above.
1 has a heat storage effect, and therefore the heat transfer efficiency to the liquid 2 can be further improved.
しかもセラミックハニカム１１には整流作用もあるので
、触媒反応部９よりも下流側の燃焼ガス流路６を、その
上流側よりも細く絞って、ここを流れる燃焼ガスの流速
を大きくしても、管５の共鳴現象による騒音の発生は低
いレベルに抑えることができ、したがって効果的に管５
の内側面に生じる境膜の影響を排除して、液体２への伝
熱効率をさらに向上させることができる。また、このよ
うにセラミックハニカム１１の下流側では管ｆの共鳴現
象が起きにくいので、例えば表面を波状にして伝熱効率
を改善したコルゲート管１２で流路６を構成すれば、騒
音の発生を低く抑えながら、液体２への伝熱効率、した
がって浸管ヒータ１の燃焼効率をさらに改善することが
できる。Moreover, the ceramic honeycomb 11 also has a rectifying effect, so even if the combustion gas flow path 6 on the downstream side of the catalytic reaction section 9 is narrowed narrower than that on the upstream side and the flow velocity of the combustion gas flowing therein is increased, The generation of noise due to the resonance phenomenon of the pipe 5 can be suppressed to a low level, and therefore the pipe 5 can be effectively
It is possible to further improve the heat transfer efficiency to the liquid 2 by eliminating the influence of the film produced on the inner surface of the liquid 2. Furthermore, since the resonance phenomenon of the tubes f is less likely to occur on the downstream side of the ceramic honeycomb 11, for example, if the flow path 6 is constructed of a corrugated tube 12 with a corrugated surface to improve heat transfer efficiency, noise generation can be reduced. The heat transfer efficiency to the liquid 2, and therefore the combustion efficiency of the immersion tube heater 1, can be further improved while suppressing the heat transfer.
このように、本発明の浸管ヒータ１の燃焼効率は非常に
高くし得るので、燃焼ガス流路６を短くする等して小型
化しても、充分な加熱作用を維持することができる。As described above, the combustion efficiency of the immersion tube heater 1 of the present invention can be made very high, so even if the combustion gas flow path 6 is shortened or otherwise miniaturized, a sufficient heating effect can be maintained.
（発明の効果）
以上のように本発明の浸管ヒータはバーナ周囲の管が非
常に高い温度に上昇することがなく安全であり、しかも
騒音の発生を低いレベルに抑えながら、燃焼効率の高い
コンパクトな液体加熱手段を提供し得るという効果があ
る。(Effects of the Invention) As described above, the immersion tube heater of the present invention is safe because the tube surrounding the burner does not rise to an extremely high temperature, and has high combustion efficiency while suppressing noise generation to a low level. This has the effect of providing a compact liquid heating means.
第１図〜第３図は本発明の実施例に対応するもので、第
１図は全体系統図、第２図は要部斜視図、第３図は要部
系統図、第４図は従来例の全体系統図である。
符号１・・・浸管ヒータ、２・・・加熱対象液体、３・
・・燃焼ガス流入口、４・・・燃焼ガス流出口、５・・
・管、６・・・燃焼ガス流路、７・・・バーナ、８・・
・バーナ先端部、９・・・触媒反応部、１０・・・担体
、１１・・・セラミックハニカム、１２・・・コルゲー
ト管、１３・・・連通孔。
第 １ ｔｌFigures 1 to 3 correspond to embodiments of the present invention, where Figure 1 is an overall system diagram, Figure 2 is a perspective view of main parts, Figure 3 is a system diagram of main parts, and Figure 4 is a conventional system diagram. FIG. 2 is an example overall system diagram. Code 1: Immersion tube heater, 2: Liquid to be heated, 3:
... Combustion gas inlet, 4... Combustion gas outlet, 5...
・Pipe, 6... Combustion gas flow path, 7... Burner, 8...
- Burner tip, 9... Catalytic reaction part, 10... Carrier, 11... Ceramic honeycomb, 12... Corrugated pipe, 13... Communication hole. 1st tl
Claims (5)
する管を、該流入口と流出口の双方が前記液体表面より
も上に位置するように、前記液体内に浸漬して、前記液
体内に燃焼ガス流路を形成すると共に、前記燃焼ガス流
入口近傍の管内にバーナを設置した浸管ヒータにおいて
、前記バーナを少くともその先端部が前記加熱対象液体
の液面下になるように設置すると共に、前記燃焼ガス流
路の該バーナよりも下流側適所に、前記燃焼ガスが通過
可能な触媒反応部を構成したことを特徴とする浸管ヒー
タ。(1) Immersing a pipe having a combustion gas inlet and an outlet in the liquid to be heated, such that both the inlet and the outlet are located above the surface of the liquid; In an immersion tube heater in which a combustion gas flow path is formed in the liquid and a burner is installed in a pipe near the combustion gas inlet, at least the tip of the burner is below the surface of the liquid to be heated. The immersion tube heater is characterized in that the immersion tube heater is installed as shown in FIG.
ハニカムで構成したことを特徴とする浸管ヒータ。(2) An immersion tube heater, wherein the carrier of the catalytic reaction section according to claim 1 is made of a ceramic honeycomb.
も下流側を、その上流側よりも細く絞ったことを特徴と
する浸管ヒータ。(3) The immersion tube heater according to claim 1, wherein the combustion gas flow path is narrower on the downstream side of the catalytic reaction section than on the upstream side thereof.
ハニカムで構成すると共に、燃焼ガス流路は触媒反応部
よりも下流側を、その上流側よりも細く絞ったことを特
徴とする浸管ヒータ。(4) The carrier of the catalytic reaction section according to claim 1 is constructed of a ceramic honeycomb, and the combustion gas flow path is narrower on the downstream side of the catalytic reaction section than on the upstream side. tube heater.
下流側は、コルゲート管で構成したことを特徴とする浸
管ヒータ。(5) An immersion tube heater, wherein the combustion gas passage according to claim 1, downstream of the catalytic reaction section, is constructed of a corrugated tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33571389A JP2839165B2 (en) | 1989-12-25 | 1989-12-25 | Immersion tube heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33571389A JP2839165B2 (en) | 1989-12-25 | 1989-12-25 | Immersion tube heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03195861A true JPH03195861A (en) | 1991-08-27 |
| JP2839165B2 JP2839165B2 (en) | 1998-12-16 |
Family
ID=18291645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33571389A Expired - Fee Related JP2839165B2 (en) | 1989-12-25 | 1989-12-25 | Immersion tube heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2839165B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0838635A3 (en) * | 1996-10-28 | 1999-05-19 | Carrier Corporation | Noise reducing device for combustion driven heating apparatus |
| WO2001057442A1 (en) * | 2000-02-02 | 2001-08-09 | J. Eberspächer Gmbh & Co. | Burner system, especially for a heater |
-
1989
- 1989-12-25 JP JP33571389A patent/JP2839165B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0838635A3 (en) * | 1996-10-28 | 1999-05-19 | Carrier Corporation | Noise reducing device for combustion driven heating apparatus |
| WO2001057442A1 (en) * | 2000-02-02 | 2001-08-09 | J. Eberspächer Gmbh & Co. | Burner system, especially for a heater |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2839165B2 (en) | 1998-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |