JPH0334874Y2 - - Google Patents
Info
- Publication number
- JPH0334874Y2 JPH0334874Y2 JP1984029649U JP2964984U JPH0334874Y2 JP H0334874 Y2 JPH0334874 Y2 JP H0334874Y2 JP 1984029649 U JP1984029649 U JP 1984029649U JP 2964984 U JP2964984 U JP 2964984U JP H0334874 Y2 JPH0334874 Y2 JP H0334874Y2
- Authority
- JP
- Japan
- Prior art keywords
- heating wire
- support
- wire support
- hot air
- protruding strip
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 55
- 238000007664 blowing Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 229910001120 nichrome Inorganic materials 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 230000035508 accumulation Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Resistance Heating (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Description
【考案の詳細な説明】
本考案は、熱風発生機の電熱線支持体の改良に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a heating wire support for a hot air generator.
従来より熱風発生機の電熱線支持体は種々改良
が重ねられており、蓮根形状の円筒型であつて多
数の長孔に夫々電熱線を挿通するようになされた
ものが以前の電熱線支持体よりは圧力損失の少な
いものとして用いられてきた。 The heating wire support for hot air generators has been improved in various ways over the years. It has been used as a product with less pressure loss.
しかしながら、これとても圧力損失の点で満足
の行くものではなく、また電熱線を挿通した長孔
の周壁にダストが滞まり、そのため過熱により電
熱線の切断が起こり易く、熱風発生機の耐久性を
低下させるものであつた。また、送風気体は巻回
された電熱線の内側のみを通過するため、電熱線
から送風気体への熱伝導効率が低いという問題点
があつた。 However, this is not very satisfactory in terms of pressure loss, and dust accumulates on the peripheral wall of the elongated hole through which the heating wire is inserted, making it easy for the heating wire to break due to overheating, reducing the durability of the hot air generator. It was a deterioration. Furthermore, since the blown gas passes only inside the wound heating wire, there is a problem in that the efficiency of heat transfer from the heating wire to the blown gas is low.
そこで、叙上のような実情に鑑みてなされたの
が本願考案であり、その目的とするところは、筒
体の内壁の長手方向に凸条を設けて電熱線を支持
することにより、予想以上に圧力損失が少なく、
またダストが内壁に滞まることがあつても電熱線
の周囲には空間を広くとつてあるのでダストによ
る断線を防止することができ、熱風発生機の耐久
性を向上させる電熱線支持体を提供するにある。
更に、電熱線の周囲に空間を広く取ることによつ
て送風気体を電熱線の内側及び外側の両側を通過
させうるようにして、電熱線から送風気体への熱
伝導効率を高めることもその目的である。また、
電熱線支持体を組み合わせて使用しうる手段を講
じることをもその目的としている。 Therefore, the present invention was devised in view of the above-mentioned circumstances, and its purpose is to provide a protrusion in the longitudinal direction of the inner wall of the cylindrical body to support the heating wire. with less pressure loss,
In addition, even if dust may accumulate on the inner wall, there is a wide space around the heating wire to prevent wire breakage due to dust, providing a heating wire support that improves the durability of the hot air generator. There is something to do.
Furthermore, the purpose is to increase the efficiency of heat transfer from the heating wire to the blown gas by creating a wide space around the heating wire so that the blown gas can pass through both the inside and outside of the heating wire. It is. Also,
Another object of this invention is to develop a means that can be used in combination with heating wire supports.
以下、図に基づいて実施例を説明すると、セラ
ミツク製の熱風発生機の電熱線支持体１は第１図
に示す如く角状の筒体２，２…を縦横に配列して
なるもので、筒体２，２…の各内壁３，３…には
筒体２，２…の長手方向に凸条４，４…が設けら
れ、電熱線５を三方乃至四方から支えるようにな
されている。該凸条４，４…を設けることにより
電熱線５と筒体２，２…との接触面積を減少せし
め、筒体２，２…即ち電熱線支持体１への熱の伝
導を減少せしめるとともに、筒体２，２…を大き
くすることができ、圧力損失を減少せしめること
ができる。また、筒体２，２の四隅に形成される
ダスト滞り６，６…は広大となり、ダストがかな
りの量蓄積してもダストによる弊害を免がれるこ
とができる。 Hereinafter, an embodiment will be explained based on the drawings. As shown in FIG. 1, the heating wire support 1 of the ceramic hot air generator is formed by arranging rectangular cylinders 2, 2... vertically and horizontally. Convex strips 4, 4... are provided on each inner wall 3, 3... of the cylinders 2, 2... in the longitudinal direction of the cylinders 2, 2... to support the heating wire 5 from three or four sides. By providing the protrusions 4, 4..., the contact area between the heating wire 5 and the cylindrical bodies 2, 2... is reduced, and the conduction of heat to the cylindrical bodies 2, 2... that is, the heating wire support 1 is reduced. , the cylindrical bodies 2, 2... can be made larger, and pressure loss can be reduced. Moreover, the dust accumulations 6, 6, .
そして、電熱線支持体１の両側面７，７には該
支持体１をボルトで挾持するために凹部８，８…
が設けられている。 On both sides 7, 7 of the heating wire support 1, recesses 8, 8, . . . for holding the support 1 with bolts are provided.
is provided.
次に、電熱線支持体１にニクロム線５を取付け
る方法について述べると、第２図に示す如く、１
本の長いニクロム線５を支持体１の左上隅に位置
する筒体２に後方より挿通した後、その下の筒体
２に前方より挿通し、次にその下の筒体２に後方
より挿通するといつたふうに最下段の筒体２まで
ジグザグ状に挿通すると、今度は左最下段の隣
り、即ち中央最下段の筒体２に後方より同じニク
ロム線５を挿通し、後は同じくジグザグ状に中央
最上段まで行き、次は右上最上段に移り、ジグザ
グ状に右最下段まで挿通する。第２図に示す実施
例のように縦４段横３段の場合ニクロム線５の両
端は同方向に支持体１から突出するので好都合で
ある。 Next, the method of attaching the nichrome wire 5 to the heating wire support 1 will be described.As shown in FIG.
Insert a long nichrome wire 5 into the cylinder 2 located at the upper left corner of the support 1 from the rear, then into the cylinder 2 below it from the front, and then into the cylinder 2 below it from the rear. Then, insert the same nichrome wire 5 in a zigzag pattern to the bottom cylinder 2 in the same way, and then insert the same nichrome wire 5 from the rear into the cylinder 2 next to the bottom left cylinder, that is, the center bottom cylinder 2, and then in the same zigzag pattern. Go to the top center row, then move to the top right row, and insert it in a zigzag pattern to the bottom right row. In the case of four columns vertically and three columns horizontally as in the embodiment shown in FIG. 2, both ends of the nichrome wire 5 protrude from the support 1 in the same direction, which is convenient.
上記電熱線支持体１は第１図に示すような複数
の筒体２，２…を配列したものを１ブロツクとし
て熱風発生機の所要出力に応じて数ブロツクまと
めて組み込むことができ、この時連続した１本の
電熱線で全ブロツクの配線をすることができるの
で、取付けの手間が軽減される。 The above-mentioned heating wire support 1 can be assembled into several blocks according to the required output of the hot air generator, with a plurality of cylindrical bodies 2, 2, etc. arranged as shown in Fig. 1 being arranged as one block. Since all blocks can be wired with one continuous heating wire, installation effort is reduced.
上記如く、複数の筒体２，２…を１ブロツクと
した電熱線支持体１は多くの利点を有するが、第
３図に示す如く一つの筒体２からなる電熱線支持
体２１も熱効率、圧力損失等においては同様の性
能を備えている。 As mentioned above, the heating wire support 1 made up of a plurality of cylinders 2, 2... has many advantages, but the heating wire support 21 made of one cylinder 2 as shown in FIG. They have similar performance in terms of pressure loss, etc.
次に、本考案に係る電熱線支持体１の性能試験
結果について述べる。 Next, performance test results of the heating wire support 1 according to the present invention will be described.
風量−温度の関係は第５図のグラフに示す如
く、風量が減少するにつれて蓄熱現象により理論
曲線から外れてくるが、本考案の電熱線支持体の
場合この分岐点が出力5KWでは風量1.0Nm3／
min.付近、10KWでは1.2Nm3／min.付近また
15KWでも2.1〜2.2Nm3／min.付近であり、理論
曲線に極めて良く乗つており、熱効率が良いこと
を示している。 As shown in the graph in Figure 5, the relationship between air volume and temperature deviates from the theoretical curve due to the heat accumulation phenomenon as the air volume decreases, but in the case of the heating wire support of the present invention, this branch point is at an air volume of 1.0 Nm at an output of 5 KW. 3 /
Around min., at 10KW around 1.2Nm 3 /min.
Even at 15KW, it is around 2.1 to 2.2Nm 3 /min., which fits the theoretical curve extremely well, indicating that the thermal efficiency is good.
また、圧力損失−風量の関係は第６図に示され
ている。このグラフにおいて2B，3B…は電熱線
支持体１を１ブロツクとして気体の流れ方向に縦
列状態に２個、３個…並べたことを意味し、風量
10.0Nm3／min.でも１ブロツク（1B）の場合圧力
損失が85mm／Aq付近であり、６ブロツク（6B）
の場合でも140mm／Aq付近と圧力損失が低いこと
を示している。因にブロツクを気体の流れ方向に
横列状態に並べた場合１ブロツクのみの圧力損失
と殆んど変わらない。 Further, the relationship between pressure loss and air volume is shown in FIG. In this graph, 2B, 3B... means that two or three heating wire supports 1 are arranged in tandem in the gas flow direction, and the air volume is
Even at 10.0Nm 3 /min., the pressure loss for 1 block (1B) is around 85mm/Aq, and for 6 blocks (6B)
Even in the case of , the pressure loss is around 140mm/Aq, indicating that the pressure loss is low. Incidentally, when the blocks are arranged in a row in the gas flow direction, the pressure loss is almost the same as that of only one block.
第７図の電熱線支持体温度−絶縁抵抗
（2.5KW当り）の関係を示すグラフは支持体１の
絶縁抵抗が大きいことを示すとともに、絶縁抵抗
が減少しても支持体１温度は急速には上昇しない
ことを示している。電熱線支持体１は凸条４，４
…で電熱線５を支えるため電熱線５との接触面積
が少ないので、支持体１に熱が伝わり難く且つ絶
縁性に優れている。 The graph showing the relationship between heating wire support temperature and insulation resistance (per 2.5KW) in Figure 7 shows that the insulation resistance of support 1 is large, and even if the insulation resistance decreases, the temperature of support 1 will rapidly increase. shows that it will not rise. The heating wire support 1 has protrusions 4, 4
Since the heating wire 5 is supported by the heating wire 5, the contact area with the heating wire 5 is small, so that heat is not easily transmitted to the support 1 and has excellent insulation properties.
最後に電熱線表面温度−吐出温度の関係を第８
図に示す。支持体１１ブロツク当り5KW
（4.69W／cm2）出力の場合のグラフである。熱風
の吐出温度は電熱線表面温度に近く、熱効率が良
いことを示しており、また所望の熱風温度に対し
て従来の支持体より電熱線表面温度が低いので、
安全性、耐久性の面で優れている。 Finally, the relationship between the heating wire surface temperature and the discharge temperature is shown in the 8th section.
As shown in the figure. 5KW per 11 blocks of support
(4.69W/cm 2 ) is a graph for the output. The hot air discharge temperature is close to the heating wire surface temperature, indicating good thermal efficiency, and the heating wire surface temperature is lower than that of conventional supports for the desired hot air temperature.
Excellent in terms of safety and durability.
叙上の如く、本考案に係る電熱線支持体は絶縁
性に優れ且つ支持体への熱の逃げが少ないので熱
効率が極めて良く、また圧力損失が非常に少ない
ことを特徴とするものである。この熱効率の良好
な点は、送風気体が電熱線の内側及び外側の両側
を通過しうるためである。 As mentioned above, the heating wire support according to the present invention has excellent insulation properties and little heat escapes to the support, so it has extremely high thermal efficiency and is characterized by extremely low pressure loss. This good thermal efficiency is due to the fact that the blowing gas can pass both inside and outside the heating wire.
更に、広いダスト溜りを有するのでダストの蓄
積による影響を受け難く、熱風発生機の耐久性を
向上させることができる。 Furthermore, since it has a wide dust reservoir, it is less susceptible to the effects of dust accumulation, and the durability of the hot air generator can be improved.
また、本考案の電熱線支持体の筒体において
は、「丸巻」、「角巻」及び「ねじり巻」（楕円形に
巻いたものを交互にひねつて、通風方向から見て
Ｘ印状に巻回したもの）などの各種の形式の電熱
線のいずれをも支持することができ、前記効果を
発揮しうる。そして、該支持体の側面に設けられ
た凹部にボルト等の固定部材を適合させて、複数
の支持体を組み合わせて固定し、所望の容量に合
わせて該支持体のいくつかを組み合わせて使用す
ることができるものである。 In addition, in the cylindrical body of the heating wire support of the present invention, "round winding", "square winding", and "twist winding" (those wound in an oval shape are alternately twisted and shaped like an X mark when viewed from the ventilation direction). It can support any of various types of heating wires, such as those wound around the wire, and can exhibit the above-mentioned effects. Then, by fitting a fixing member such as a bolt into a recess provided on the side surface of the support, a plurality of supports are combined and fixed, and some of the supports are used in combination according to the desired capacity. It is something that can be done.
第１図は本考案に係る熱風発生機の電熱線支持
体の一実施例を示す斜視図、第２図は電熱線を挿
入した状態を示す斜視図、第３図は他の実施例を
示す正面図、第４図はその断面図、第５図は風量
と温度との関係を示すグラフ、第６図は圧力損失
と風量との関係を示すグラフ、第７図は電熱線支
持体温度と絶縁抵抗との関係を示すグラフ、第８
図は電熱線表面温度と吐出温度との関係を示すグ
ラフである。
図中符号：１，２１……電熱線支持体、２……
筒体、３，２３……内壁、４，２４……凸条、
６，２６……ダスト溜り。
Fig. 1 is a perspective view showing one embodiment of the heating wire support of the hot air generator according to the present invention, Fig. 2 is a perspective view showing the state in which the heating wire is inserted, and Fig. 3 shows another embodiment. The front view, Figure 4 is a cross-sectional view, Figure 5 is a graph showing the relationship between air volume and temperature, Figure 6 is a graph showing the relationship between pressure loss and air volume, and Figure 7 is a graph showing the relationship between heating wire support temperature and temperature. Graph showing the relationship with insulation resistance, No. 8
The figure is a graph showing the relationship between heating wire surface temperature and discharge temperature. Codes in the figure: 1, 21... Heating wire support, 2...
Cylindrical body, 3, 23... Inner wall, 4, 24... Convex strip,
6,26...Dust puddle.
Claims (1)
開口部を有する１又は２以上の筒体２が設けら
れ、該筒体２には電熱線を挿通することができ、
該電熱線を支持するために筒体２の内壁長手方向
に延びる凸条４が形成された電熱線支持体におい
て、筒体２の断面形状を略四角形状に形成し、該
四角形状の各辺の中央部位に該凸条を設けて電熱
線の外側にも送風気体が通過しうるようにし、か
つ、凸条４の電熱線支持面を平面にて形成し、更
に、該電熱線支持体の複数個を組み合わせて固定
するための固定部材を適合させるために、該電熱
線支持体の側面７に凹部８を設けたことを特徴と
する熱風発生機の電熱線支持体。 One or more cylindrical bodies 2 having openings on both end faces of a heating wire support having a substantially rectangular parallelepiped shape are provided, and a heating wire can be inserted through the cylindrical bodies 2,
In the heating wire support body in which a protruding strip 4 extending in the longitudinal direction of the inner wall of the cylinder body 2 is formed to support the heating wire, the cross section of the cylinder body 2 is formed into a substantially square shape, and each side of the square shape is formed. The protruding strip is provided in the central part of the heating wire so that the blowing gas can pass through to the outside of the heating wire, and the heating wire supporting surface of the protruding strip 4 is formed as a flat surface, and further, the heating wire supporting surface of the heating wire support is A heating wire support for a hot air generator, characterized in that a recess 8 is provided in a side surface 7 of the heating wire support in order to accommodate a fixing member for fixing a plurality of heating wire supports in combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2964984U JPS60142493U (en) | 1984-02-29 | 1984-02-29 | Heating wire support for hot air generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2964984U JPS60142493U (en) | 1984-02-29 | 1984-02-29 | Heating wire support for hot air generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60142493U JPS60142493U (en) | 1985-09-20 |
| JPH0334874Y2 true JPH0334874Y2 (en) | 1991-07-24 |
Family
ID=30528649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2964984U Granted JPS60142493U (en) | 1984-02-29 | 1984-02-29 | Heating wire support for hot air generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60142493U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2838768B2 (en) * | 1994-11-22 | 1998-12-16 | 株式会社スイデン | Unit heat source |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5292936A (en) * | 1976-01-30 | 1977-08-04 | Sharp Corp | Heating body structure for warm wind generating device |
-
1984
- 1984-02-29 JP JP2964984U patent/JPS60142493U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5292936A (en) * | 1976-01-30 | 1977-08-04 | Sharp Corp | Heating body structure for warm wind generating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60142493U (en) | 1985-09-20 |
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