JPH0240450A - Hot air generating device - Google Patents
Hot air generating deviceInfo
- Publication number
- JPH0240450A JPH0240450A JP19086488A JP19086488A JPH0240450A JP H0240450 A JPH0240450 A JP H0240450A JP 19086488 A JP19086488 A JP 19086488A JP 19086488 A JP19086488 A JP 19086488A JP H0240450 A JPH0240450 A JP H0240450A
- Authority
- JP
- Japan
- Prior art keywords
- air
- ventilation
- outlet
- inlet
- hot air
- 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
- 238000009423 ventilation Methods 0.000 claims description 76
- 230000020169 heat generation Effects 0.000 claims description 7
- 238000011084 recovery Methods 0.000 abstract 1
- 238000007664 blowing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、熱風発生装置に関し、管体の内部に発熱源を
内蔵させ、発熱源を内蔵させた通風路の外側に、冷風の
通る通風路を同軸状に形成させることにより、管体外壁
の温度上昇を低く抑え、安全性を確保すると共に、熱損
失を低下させ、効率を向上させるようにしたものである
。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a hot air generator, in which a heat generating source is built into the inside of a tube body, and a ventilation path through which cold air is passed outside the ventilation passage in which the heat generating source is built in. By forming the channels coaxially, the temperature rise on the outer wall of the tube is suppressed, ensuring safety, reducing heat loss, and improving efficiency.
〈従来の技術〉
この種の熱風発生装置は、湿気の追放または乾燥等の用
途において、送風装置と組合させて使用される。第３図
に従来の熱風発生装置の構成を概略的に示す１図におい
て、１は管体、２は発熱源、３は送風装置である。<Prior Art> This type of hot air generator is used in combination with an air blower for purposes such as removing moisture or drying. FIG. 3 schematically shows the configuration of a conventional hot air generator. In FIG. 1, 1 is a tube body, 2 is a heat generating source, and 3 is a blower device.
管体１の外筒体１０２は耐熱性の高い材料、例えばセメ
ント管等を用いて円筒状に形成されており、その軸方向
の一端が送風人口ａ、他端が送風出口すとなっている。The outer cylindrical body 102 of the tube body 1 is formed into a cylindrical shape using a material with high heat resistance, such as a cement pipe, and one end in the axial direction serves as a ventilation port a, and the other end serves as a ventilation outlet. .
発熱源２は、一般には、ニクロムヒータ等の電気抵抗発
熱体によって構成されている。この発熱源は管体１の内
径部１０１の内部に配置されている。The heat generating source 2 is generally constituted by an electric resistance heating element such as a nichrome heater. This heat generation source is arranged inside the inner diameter portion 101 of the tube body 1.
送風装置３は、管体１の送風人口ａに連結されている。The air blower 3 is connected to the air blower a of the pipe body 1 .
送風装置３は、一般には、電動機によって回転翼を駆動
する送風機で構成される。The blower device 3 is generally composed of a blower whose rotary blades are driven by an electric motor.
送風装置３から送風された空気は、管体１の内部を通過
するときに発熱源２によって加熱され、送風出口すから
熱風となって送風される。The air blown from the blower device 3 is heated by the heat generating source 2 when passing through the inside of the pipe body 1, and is blown as hot air from the air outlet.
〈発明が解決しようとする課題〉
しかしながら、上述した従来の熱風発生装置は、発熱源
２によって加熱された熱風が管体１に直接的に触れるた
め、管体１の外表面の温度が非常に高くなる。例えば、
温度上昇の最も大ぎい送風出口すの付近では、送風出口
すを開放させた状態で１００℃以上の温度になる。この
ため、管体１の外表面に触れた場合は火傷を負う危険性
があり、安全性に欠けるという問題点があった。<Problems to be Solved by the Invention> However, in the conventional hot air generator described above, the hot air heated by the heat generating source 2 directly contacts the tube body 1, so the temperature of the outer surface of the tube body 1 is extremely high. It gets expensive. for example,
In the vicinity of the ventilation outlet where the temperature rise is greatest, the temperature reaches 100°C or more with the ventilation outlet open. Therefore, if the outer surface of the tubular body 1 is touched, there is a risk of getting burned, and there is a problem of lack of safety.
また、管体１の外表面からの熱放散が大ぎく、熱効率が
悪いという問題点もあった。Further, there was also the problem that heat dissipation from the outer surface of the tube body 1 was large, resulting in poor thermal efficiency.
上述のような問題を緩和するためには、管体１の外筒体
１０２を、熱伝導性が悪く耐熱性のある材料によって構
成しなければならい。このような材料は一般にコストが
高く、経済的に実用性のないものとなってしまう。また
、外筒体１０２の厚みが増すために重くなり、取扱いに
くくなると共に、蓄熱作用が大きくなり、送風停止後も
危険な高温状態が長時間続くという問題点もある。In order to alleviate the above-mentioned problems, the outer cylindrical body 102 of the tube body 1 must be made of a material that has poor thermal conductivity and is heat resistant. Such materials are generally expensive, making them economically impractical. Furthermore, the increased thickness of the outer cylinder 102 makes it heavier and difficult to handle, and there is also the problem that the heat storage effect increases and a dangerously high temperature state continues for a long time even after the air blowing is stopped.
そこで、本発明の課題は、上述する従来の問題点を解決
し、簡単な構造で、管体外筒体の温度上昇を低く抑え、
安全性を確保すると共に、熱損失を低下させ、効率を向
上させた熱風発生装置を提供することである。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned conventional problems, suppress the temperature rise of the outer tube body with a simple structure, and
It is an object of the present invention to provide a hot air generator that ensures safety, reduces heat loss, and improves efficiency.
く課題を解決するための手段〉
上述する課題解決のため、本発明は、第１図に示すよう
に、管体１と、発熱源２とを備える熱風発生装置であっ
て、
前記管体１は、一端側を送風人口ａ、他端側を送風出口
すとし、送風人口ａ及び送風出口すの間に少なくとも２
つの通風路４．５を有しており、
各通風路４．５は、同軸状に配置された筒体１０２．１
０３によって囲まれ、かつ、互いに分離されており、
最内側の通風路４は、内部に前記発熱源４を内蔵してお
り、
前記２つの通風路４．５は、前記送風人口ａ側及び送風
出口す側で互いに連通していることを特徴とする。Means for Solving the Problems> In order to solve the above-mentioned problems, the present invention provides a hot air generator comprising a tube body 1 and a heat generation source 2, as shown in FIG. , one end side has a ventilation population a and the other end has a ventilation outlet, and there is at least 2 between the ventilation population a and the ventilation outlet.
Each ventilation passage 4.5 has a cylinder body 102.1 arranged coaxially.
03 and are separated from each other, the innermost ventilation passage 4 has the heat generation source 4 built therein, and the two ventilation passages 4.5 are connected to the ventilation port a side and the ventilation passage 4. They are characterized by being in communication with each other on the exit side.
く作用〉
送風機等の送風装置によって矢印（イ）の如く送風され
た空気は、送風人口ａから通風路４と通風路５とに分流
される。通風路４に入った空気は発熱源２による加熱作
用を受け、熱風となって送風出口すから送風される。Effect> Air blown in the direction of arrow (a) by a blowing device such as a blower is divided into the ventilation path 4 and the ventilation path 5 from the blown air population a. The air that has entered the ventilation path 4 is heated by the heat generating source 2, becomes hot air, and is blown from the ventilation outlet.
一方、通風路５に矢印（ロ）の如く分流した空気は、加
熱を受けない冷風である。この冷風流は通風路４を囲む
ように流れ、通風路４を構成する筒体１０３に触れてそ
の熱を奪う。このため、管体１の外筒体１０２の温度上
昇が低く抑えられ、安全性が高くなると共に、熱損失が
低下し、効率が向上する。On the other hand, the air branched into the ventilation path 5 as shown by the arrow (b) is cold air that is not heated. This cold air flow surrounds the ventilation passage 4, touches the cylindrical body 103 constituting the ventilation passage 4, and removes heat from it. Therefore, the temperature rise in the outer cylinder 102 of the pipe body 1 is suppressed to a low level, increasing safety, reducing heat loss, and improving efficiency.
通風路５を通過した空気は、送風出口す側で通風路４と
合流する。従って、通風路５を通過する空気に対して与
えられた熱エネルギーの殆どが送風口すにおいて回収さ
れるから、通風路５を設けたことによる熱損失は少ない
。The air passing through the ventilation passage 5 merges with the ventilation passage 4 on the side of the ventilation outlet. Therefore, since most of the thermal energy given to the air passing through the ventilation passage 5 is recovered at the ventilation opening, there is little heat loss due to the provision of the ventilation passage 5.
〈実施例〉
第゛２図は本発明に係る熱風発生装置の正面部分断面図
である。管体１は、軸方向の一端側を送風入口ａ１他端
側を送風出口すとしである。送風人口ａ及び送風出口す
には金属成形品でなる筒状フランジ１０４．１０５が配
置されていて、これらの筒状フランジ１０４−１０５間
に、管体１の外筒体を構成する外筒体１０２と、内筒体
１０３が、間隔ｄを隔てて同軸状に介装されている。間
隔ｄは５〜ｆｏｎｏｎ程度が望ましい。<Example> Fig. 2 is a front partial sectional view of a hot air generator according to the present invention. The tube body 1 has a ventilation inlet a at one end in the axial direction and a ventilation outlet at the other end. Cylindrical flanges 104 and 105 made of metal moldings are arranged at the ventilation port a and the ventilation outlet a, and between these cylindrical flanges 104 and 105, an outer cylinder constituting the outer cylinder of the pipe body 1 is arranged. 102 and an inner cylindrical body 103 are coaxially interposed with a distance d between them. The distance d is preferably about 5 to phonon.
外筒体１０２は鋼板等を用いて、円筒状に形成し、その
両端を筒状フランジ１０４．１０５に取付は固定しであ
る。The outer cylindrical body 102 is formed into a cylindrical shape using a steel plate or the like, and both ends thereof are fixedly attached to cylindrical flanges 104 and 105.
内筒体１０３は、例えばステンレス板等を用いて筒状に
形成し、軸方向の両端を、筒状フランジ１０４．１０５
の内面に間隔をおいて突出して設けたリブ１０６．１０
７に取付けである。内筒体１０３の内部には発熱源２が
配置されるので、内筒体１０３の両端を、電気絶縁物を
介して、筒状フランジ１０４．１０５によって支持する
と、発熱源２からの漏電を防止できる。The inner cylindrical body 103 is formed into a cylindrical shape using, for example, a stainless steel plate, and has cylindrical flanges 104 and 105 at both ends in the axial direction.
ribs 106.10 protruding at intervals on the inner surface of the
It is installed on 7. Since the heat generating source 2 is arranged inside the inner cylinder 103, if both ends of the inner cylinder 103 are supported by the cylindrical flanges 104 and 105 via electrical insulators, electric leakage from the heat generating source 2 can be prevented. can.
通風路４は内筒体１０３の内径部によって構成され、通
風路５は内筒体１０３と外筒体１０２との間に形成され
る間隔ｄの環状空間によって構成されている。内筒体１
０３の内部に形成された通風路４内に配置される発熱源
２は、電気抵抗発熱体に限らず、スチームパイプ等を用
いた他の発熱体であってもよい。The ventilation passage 4 is constituted by the inner diameter portion of the inner cylinder 103, and the ventilation passage 5 is constituted by an annular space formed between the inner cylinder 103 and the outer cylinder 102 with a distance d. Inner cylinder body 1
The heat generating source 2 disposed in the ventilation passage 4 formed inside the housing 03 is not limited to an electric resistance heating element, but may be another heating element using a steam pipe or the like.
内筒体１０３の外側の通風路５は、通風路４に対して、
送風人口ａ側及び送風出口す側で互いに連通している。The ventilation passage 5 on the outside of the inner cylindrical body 103 is
They communicate with each other on the side of the air blowing population a and on the side of the air blowing outlet.
送風人口ａ及び送風出口すにある筒状フランジ１０４．
１０５の内面には、リブ１０６．１０７が間隔をおいて
設けられているので、リブ１０６−１０６間及びリブ１
０７−１０７間の間隔が連通路となる。通風路５の数は
１個に限らず、複数個設けることもできる。通風路５の
個数は内筒体１０３の数を増減することによって容易に
変更できる。通風路５の個数を増した場合、構造的には
複雑になるが、温度上昇抑制作用が一層向上する。A cylindrical flange 104 at the ventilation port a and the ventilation outlet.
On the inner surface of 105, ribs 106 and 107 are provided at intervals, so that between the ribs 106 and 106 and between the ribs 1
The interval between 07 and 107 becomes a communication path. The number of ventilation passages 5 is not limited to one, and a plurality of ventilation passages may be provided. The number of ventilation passages 5 can be easily changed by increasing or decreasing the number of inner cylindrical bodies 103. When the number of ventilation passages 5 is increased, the structure becomes more complicated, but the temperature rise suppressing effect is further improved.
送風機等の送風装置によって矢印（イ）の如く送風され
た空気は、送風人口ａにおいて、通風路４と通風路５と
に分流される。通風路４に入った空気は発熱源２による
加熱作用を受け、熱風となって送風出口すから送風され
る。Air blown as shown by arrow (A) by a blower device such as a blower is divided into a ventilation path 4 and a ventilation path 5 at a blowing population a. The air that has entered the ventilation path 4 is heated by the heat generating source 2, becomes hot air, and is blown from the ventilation outlet.
一方、リブ１０６−１０６間の間隔を通って、通風路５
に矢印（ロ）の如く分流した冷風流は、通風路４を囲む
内筒体１０３の表面に接触して、その熱を奪いながら流
れ、送風出口すにおいて、リブ１０７−１０７間を通り
、通風路４に合流する。この？Ｉ風流により管体１の外
筒体１０２の温度上昇が低く抑えられる。On the other hand, through the space between the ribs 106-106, the ventilation passage 5
The cool air flow divided as shown by the arrow (b) contacts the surface of the inner cylinder body 103 surrounding the ventilation passage 4 and flows while removing its heat, passes between the ribs 107 and 107 at the ventilation outlet, and the ventilation Join road 4. this? The temperature rise in the outer cylindrical body 102 of the tube body 1 is suppressed to a low level by the I wind current.
具体的なデータを上げると、本実施例において、送風出
口すを開放させた状態で、送風出口す側にあるフランジ
１０５上に設定されたＡ点、外筒体１０２の外表面に設
定されたＢ点及び６点の温度を測ったところ、Ａ点の温
度は１０１℃、Ｂ点の温度は３２℃、６点の温度は２７
℃であった。これに対して、管体１の外筒体１０２をセ
メント管で構成した従来の熱風発生装置では、Ａ点の温
度が９５℃、Ｂ点の温度が１０２℃、６点の温度が５５
℃であった。このデータからも明らかなように、本発明
によれば、管体１の外筒体１０２の外表面温度を、従来
の１０２℃から３２℃と著しく低下させることができる
。To give specific data, in this example, when the air outlet is open, point A is set on the flange 105 on the side of the air outlet, and point A is set on the outer surface of the outer cylinder body 102. When the temperature at point B and point 6 was measured, the temperature at point A was 101℃, the temperature at point B was 32℃, and the temperature at point 6 was 27℃.
It was ℃. On the other hand, in a conventional hot air generator in which the outer cylinder 102 of the pipe body 1 is made of a cement pipe, the temperature at point A is 95°C, the temperature at point B is 102°C, and the temperature at point 6 is 55°C.
It was ℃. As is clear from this data, according to the present invention, the outer surface temperature of the outer cylindrical body 102 of the tube body 1 can be significantly lowered from the conventional 102°C to 32°C.
また、外筒体１０２から放散する損失エネルギーは、計
算によると、本発明に係る熱風発生装置の方が、従来品
よりも約２０％程度低くなり、熱効率が約２０％程度向
上することが分った。Furthermore, calculations show that the loss energy dissipated from the outer cylindrical body 102 is about 20% lower in the hot air generator according to the present invention than in the conventional product, and the thermal efficiency is improved by about 20%. It was.
〈発明の効果〉
以上述べたように、本発明によれば、次のような効果が
得られる。<Effects of the Invention> As described above, according to the present invention, the following effects can be obtained.
（ａ）管体と、発熱源とを備える熱風発生装置において
、管体は送風人口及び送風出口の間に少なくとも２つの
通風路を有しており、各通風路は同軸状に配置された筒
体によって互いに分離されており、最内側の通風路は、
内部に発熱源を内蔵しており、各通風路は、送風人口側
及び送風出口側で互いに連通しているから、発熱源のあ
る最内側の通風路のまわりに、冷風の通る通風路を形成
し、管体の外筒体の温度上昇を低く抑え、安全性を向上
させ、熱損失を低減させた高効率の熱風発生装置を提供
できる。(a) In a hot air generator comprising a pipe body and a heat generation source, the pipe body has at least two ventilation passages between the ventilation port and the ventilation outlet, and each ventilation passage is formed by coaxially arranged tubes. Separated from each other by the body, the innermost ventilation tract is
A heat source is built inside, and each ventilation path communicates with each other on the ventilation population side and the ventilation outlet side, so a ventilation path through which cool air passes is formed around the innermost ventilation path where the heat generation source is located. However, it is possible to provide a highly efficient hot air generator that suppresses the temperature rise of the outer cylinder of the tube, improves safety, and reduces heat loss.
（ｂ）通風路及び通風路は、送風出口側で互いに連通し
ているから、通風路を通過する空気に対して与えられた
熱エネルギーの殆どが送風出口において回収できる。こ
のため、熱損失の少ない熱風発生装置を提供できる。(b) Since the ventilation passage and the ventilation passage communicate with each other on the ventilation outlet side, most of the thermal energy given to the air passing through the ventilation passage can be recovered at the ventilation exit. Therefore, it is possible to provide a hot air generator with less heat loss.
第１図は本発明に係る熱風発生装置の構成を示す図、第
２図は同じく具体的な実施例を示す正面部分破断面図、
第３図は従来の熱風発生装置の構成を示す図である。
・管体
・外筒体
・発熱源
・内筒体
４、
・通風路
第
図FIG. 1 is a diagram showing the configuration of a hot air generator according to the present invention, and FIG. 2 is a partially cutaway front view showing a specific embodiment.
FIG. 3 is a diagram showing the configuration of a conventional hot air generator.・Pipe body・Outer cylinder body・Heating source・Inner cylinder body 4, ・Ventilation passage diagram
Claims (2)
、 前記管体は、一端側を送風入口、他端側を送風出口とし
、送風入口及び送風出口の間に少なくとも２つの通風路
を有しており、 各通風路は、同軸状に配置された筒体によって囲まれ、
かつ、互いに分離されており、 最内側の通風路は、内部に前記発熱源を内蔵しており、 前記２つの通風路は、前記送風入口側及び送風出口側で
互いに連通していること を特徴とする熱風発生装置。(1) A hot air generator comprising a pipe body and a heat generation source, the pipe body having a ventilation inlet at one end and a ventilation outlet at the other end, and at least two ventilation holes between the ventilation inlet and the ventilation outlet. Each ventilation passage is surrounded by a cylinder arranged coaxially,
and are separated from each other, the innermost ventilation passage has the heat generation source built therein, and the two ventilation passages communicate with each other on the ventilation inlet side and the ventilation outlet side. Hot air generator.
を特徴とする特許請求の範囲第１項に記載の熱風発生装
置。(2) The hot air generator according to claim 1, further comprising a blower connected to the air inlet side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63190864A JP2815149B2 (en) | 1988-07-29 | 1988-07-29 | Hot air generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63190864A JP2815149B2 (en) | 1988-07-29 | 1988-07-29 | Hot air generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0240450A true JPH0240450A (en) | 1990-02-09 |
| JP2815149B2 JP2815149B2 (en) | 1998-10-27 |
Family
ID=16265037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63190864A Expired - Lifetime JP2815149B2 (en) | 1988-07-29 | 1988-07-29 | Hot air generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2815149B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05104322A (en) * | 1991-10-11 | 1993-04-27 | Kobe Steel Ltd | Device for cropping with flying shear |
| EP0750332A2 (en) | 1995-06-20 | 1996-12-27 | Carl Zeiss | Procedure for controlling the emission current of an electron source and electron source with emission current control |
| CN112197427A (en) * | 2020-09-29 | 2021-01-08 | 黄丽月 | Nitrogen heater |
| CN112728757A (en) * | 2020-12-28 | 2021-04-30 | 无锡恒业电热电器有限公司 | High-efficient multichannel electric heater |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60178750U (en) * | 1984-05-08 | 1985-11-27 | 日本遠赤外線株式会社 | Hot air generation duct |
-
1988
- 1988-07-29 JP JP63190864A patent/JP2815149B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60178750U (en) * | 1984-05-08 | 1985-11-27 | 日本遠赤外線株式会社 | Hot air generation duct |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05104322A (en) * | 1991-10-11 | 1993-04-27 | Kobe Steel Ltd | Device for cropping with flying shear |
| EP0750332A2 (en) | 1995-06-20 | 1996-12-27 | Carl Zeiss | Procedure for controlling the emission current of an electron source and electron source with emission current control |
| CN112197427A (en) * | 2020-09-29 | 2021-01-08 | 黄丽月 | Nitrogen heater |
| CN112728757A (en) * | 2020-12-28 | 2021-04-30 | 无锡恒业电热电器有限公司 | High-efficient multichannel electric heater |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2815149B2 (en) | 1998-10-27 |
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