JPH0345801A - Electric once-through boiler - Google Patents
Electric once-through boilerInfo
- Publication number
- JPH0345801A JPH0345801A JP17776889A JP17776889A JPH0345801A JP H0345801 A JPH0345801 A JP H0345801A JP 17776889 A JP17776889 A JP 17776889A JP 17776889 A JP17776889 A JP 17776889A JP H0345801 A JPH0345801 A JP H0345801A
- Authority
- JP
- Japan
- Prior art keywords
- water
- steam
- electric heater
- electric
- header
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000011162 core material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、水を加熱して蒸気を発生させる電気式貫流蒸
気ボイラの改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in an electric once-through steam boiler that heats water to generate steam.
(従来の技術)
従来、この種の電気式貫流蒸気ボイラとしては、例えば
実開昭57−190201号、実公昭62−26645
号に記載されたものが知られている。(Prior Art) Conventionally, as this type of electric once-through steam boiler, for example, Japanese Utility Model Publication No. 57-190201 and Japanese Utility Model Publication No. 62-26645 are known.
Those listed in the number are known.
これは、基本的には、上下のヘッダと、これらの間に接
続した複数の水管と、上ヘッダの上部から水管内に挿入
したU状の電気ヒータと、から構成されている。This basically consists of upper and lower headers, a plurality of water pipes connected between them, and a U-shaped electric heater inserted into the water pipes from the top of the upper header.
然しなから、この様なものは、U状の電気ヒータを用い
ているので、単位容積当りの電気容量を大きくできなか
った。However, since such a device uses a U-shaped electric heater, the electric capacity per unit volume cannot be increased.
この為、ボイラ出力を増大する事ができない難点があっ
た。For this reason, there was a drawback that the boiler output could not be increased.
(発明が解決しようとする課題)
する為に創案されたもので、その目的とする処は、ボイ
ラ出力を増大する事ができる電気式貫流蒸気ボイラを提
供するにある。(Problems to be Solved by the Invention) The present invention was devised to solve the above problems, and its purpose is to provide an electric once-through steam boiler that can increase the boiler output.
(課題を解決するための手段)
本発明の電気式貫流蒸気ボイラは、基本的には、上下の
ヘッダと、これらの間に接続した複数の水管と、水管内
に挿入したコイル状の電気ヒータと、から構成した事に
特徴が存する。(Means for Solving the Problems) The electric once-through steam boiler of the present invention basically consists of upper and lower headers, a plurality of water pipes connected between them, and a coil-shaped electric heater inserted into the water pipes. It is distinctive in that it is composed of and.
(作 用)
電気ヒータに通電すると、水管内の水が加熱されて蒸気
が発生する。(Function) When the electric heater is energized, the water in the water pipe is heated and steam is generated.
この時、電気ヒータは、コイル状を呈しているので、水
管の単位容積当りの電気容量を大きくする事ができる。At this time, since the electric heater has a coil shape, the electric capacity per unit volume of the water pipe can be increased.
この為、ボイラ出力を増大する事ができる。Therefore, the boiler output can be increased.
(実 施 例) 以下、本発明の実施例を、図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the drawings.
第1図は、本発明の実施例に係る電気式貫流蒸気ボイラ
を示す一部破断正面図。第2図は、電気ヒータを示す要
部拡大正面図。第3図は、電気ヒータを示す要部拡大横
断平面図である。FIG. 1 is a partially cutaway front view showing an electric once-through steam boiler according to an embodiment of the present invention. FIG. 2 is an enlarged front view of the main parts of the electric heater. FIG. 3 is an enlarged cross-sectional plan view of the main parts of the electric heater.
電気式貫流蒸気ボイラ1は、ヘッダ2,3、水管4、電
気ヒータ5とからその主要部が構成されている。The main parts of the electric once-through steam boiler 1 include headers 2 and 3, water pipes 4, and an electric heater 5.
ヘッダ2.3は、上下のもので、この例では、円筒状を
呈して両端が閉塞され、水平に配されている。The headers 2.3 are upper and lower, and in this example are cylindrical, closed at both ends, and arranged horizontally.
水管4は、上下のヘッダ2,3の間に接続した複数のも
ので、この例では、円筒状を呈して両端が上ヘッダ2の
下部と下へラダ3の上部に接続され、垂直に配されて横
方向に所定間隔を置いて三つ設けられている。The water pipes 4 are a plurality of water pipes connected between the upper and lower headers 2 and 3, and in this example, have a cylindrical shape, both ends are connected to the lower part of the upper header 2 and the upper part of the rudder 3, and are arranged vertically. Three of them are provided at predetermined intervals in the horizontal direction.
水管4は、内径が50mにしである。The water pipe 4 has an inner diameter of 50 m.
而して、上ヘッダ2の上部には、各氷管4に延長すべく
取付管6が設けられ、その上部には蓋7が離脱可能に設
けられて閉塞されている。At the top of the upper header 2, a mounting pipe 6 is provided to extend to each ice tube 4, and a lid 7 is removably provided at the top to close the pipe.
電気ヒータ5は、水管4内に挿入したコイル状のもので
、この例では、基部が蓋7を貫通して取付けられ、所謂
上ヘッダ2の上部から水管4内に挿入されている。The electric heater 5 is a coil-shaped heater inserted into the water tube 4 . In this example, the base is attached through the lid 7 and inserted into the water tube 4 from the upper part of the so-called upper header 2 .
而して、電気ヒータ5は、電熱線8と、これを覆う絶縁
体9と、これを覆うシース10から成り、可撓性を有し
て居り、電熱線8の両端には電源(図示せず)が接続さ
れる。The electric heater 5 is made up of a heating wire 8, an insulator 9 covering it, and a sheath 10 covering it, and is flexible, and has a power supply (not shown) at both ends of the heating wire 8. ) is connected.
電気ヒータ5は、コイルの外径が40瓢、コイルの長さ
が500m+、コイルの巻数が83巻、コイルの隙間が
1.2m、電熱線8の外径が1糊、電熱線8の長さが9
174m、電熱線8の抵抗が14.30、シース10の
外径が4.8簡、シース10の長さが9174・鴎、シ
ース10の表面積が1383cJ、電圧が400v1出
力が11189W、電力密度が8W/−にしである。The electric heater 5 has a coil outer diameter of 40 mm, a coil length of 500 m+, a coil winding number of 83 turns, a gap between the coils of 1.2 m, a heating wire 8 outer diameter of 1 glue, and a length of the heating wire 8. Saga 9
174m, the resistance of the heating wire 8 is 14.30, the outer diameter of the sheath 10 is 4.8cm, the length of the sheath 10 is 9174cm, the surface area of the sheath 10 is 1383cJ, the voltage is 400v, the output is 11189W, the power density is It is 8W/-.
尚、上ヘッダ2には気水分離器11が接続され、これに
は蒸気弁12と安全弁13が接続されている。蒸気弁1
2には、蒸気負荷(図示せず)が接続される。A steam/water separator 11 is connected to the upper header 2, and a steam valve 12 and a safety valve 13 are connected to this. steam valve 1
2 is connected to a steam load (not shown).
下ヘッダ3には、下ヘッダ3と水管4内に水を供給する
給水ポンプ14が接続されている。A water supply pump 14 that supplies water into the lower header 3 and the water pipes 4 is connected to the lower header 3 .
上へラダ2と下ヘッダ3との間には、給水ポンプ14を
制御して水位を所定値に保つ水位制御器15が設けられ
ている。A water level controller 15 is provided between the upper ladder 2 and the lower header 3 to control the water supply pump 14 to maintain the water level at a predetermined value.
次に、この様な構成に基づいて作用を述解する。Next, the operation will be explained based on such a configuration.
電気ヒータ5に通電すると、下ヘッダ3と水管4内の水
が加熱され、水管4の上部から蒸気が発生する。When the electric heater 5 is energized, the water in the lower header 3 and the water pipe 4 is heated, and steam is generated from the upper part of the water pipe 4.
発生した蒸気は、水管4の上部から上ヘッダ2を介して
気水分離器11に送られ、気水分離された後に蒸気弁1
2を経て蒸気負荷へ送られる。The generated steam is sent from the upper part of the water pipe 4 to the steam/water separator 11 via the upper header 2, and after being separated from steam and water, it is passed through the steam valve 1.
2 to the steam load.
この時、電気ヒータ5は、フィル状を呈しているので、
単位容積当りの電気容量を大きくできる。At this time, since the electric heater 5 has a fill shape,
The electric capacity per unit volume can be increased.
この為、ボイラ出力を増大する事ができる。Therefore, the boiler output can be increased.
尚、上下のヘッダ2,3と水管4とは、先の実施例では
、固着したが、これに限らず、例えば第4図に示す第二
実施例や第5図乃至第7図に示す第三実施例や第8図乃
至第10図に示す第四実施例の如く、離脱可能に接続し
ても良い。Although the upper and lower headers 2 and 3 and the water pipe 4 were fixed together in the previous embodiment, they are not limited to this, and may be used, for example, in the second embodiment shown in FIG. As in the third embodiment and the fourth embodiment shown in FIGS. 8 to 10, they may be connected in a detachable manner.
この様にすれば、水管4や電気ヒータ5の保守点検に際
し、水管4と電気ヒータ5を同時に取外す事が可能とな
り、容易に保守点検をする事ができる。In this way, when performing maintenance and inspection of the water pipe 4 and the electric heater 5, it becomes possible to remove the water pipe 4 and the electric heater 5 at the same time, and maintenance and inspection can be easily performed.
上下のヘッダ2.3と水管4とは、先の実施例では、固
着したが、これに限らず、例えば第8図乃至第10図に
示す第四実施例の如く、各水管4毎に分割して離脱可能
に接続しても良い。Although the upper and lower headers 2.3 and the water pipes 4 were fixed together in the previous embodiment, the present invention is not limited to this. For example, as in the fourth embodiment shown in FIGS. 8 to 10, each water pipe 4 may be separated. It may also be connected in a detachable manner.
この様にすれば、必要な容量の蒸気ボイラを容易に製作
でき、多種少量生産に最適となる。In this way, a steam boiler with the required capacity can be easily manufactured, making it ideal for producing a wide variety of products in small quantities.
電気ヒータ5は、先の実施例では、上ヘッダ2の上部か
ら水管4内に挿入したが、これに限らず、例えば第4図
に示す第二実施例や第13図に示す第六実施例の如く、
下ヘッダ3の下部から氷管4内に挿入したり、第5図乃
至第7図に示す第三実施例や第8図乃至第10図に示す
第四実施例の如く、水管4の下部から水管4内に挿入し
ても良い。In the previous embodiment, the electric heater 5 was inserted into the water pipe 4 from the upper part of the upper header 2, but the electric heater 5 is not limited to this, and can be inserted, for example, in the second embodiment shown in FIG. 4 or the sixth embodiment shown in FIG. 13. Like,
It can be inserted into the ice tube 4 from the bottom of the lower header 3, or inserted from the bottom of the water tube 4 as in the third embodiment shown in FIGS. 5 to 7 and the fourth embodiment shown in FIGS. 8 to 10. It may also be inserted into the water pipe 4.
この様にすれば、電気ヒータ5が蒸気部に露出して過熱
損傷するのを防止する事ができる。In this way, it is possible to prevent the electric heater 5 from being exposed to the steam portion and being damaged by overheating.
又、電気ヒータ5は、コイル状を呈するので、可撓性が
あり、挿入に要する下方寸法Hを小さくできる。Further, since the electric heater 5 has a coil shape, it is flexible and the downward dimension H required for insertion can be reduced.
電気ヒータ5は、先の実施例では、上下方向に於て電力
密度が一定であったが、これに限らず、例えば第11図
並びに第12図に示す第五実施例の如く、変えても良い
。Although the electric heater 5 had a constant power density in the vertical direction in the previous embodiment, the power density is not limited to this, and may be changed as in the fifth embodiment shown in FIGS. 11 and 12, for example. good.
つまり、この例では、電気ヒータ5を上中下に三区分し
、これらの電圧、抵抗、出力が同一になる様に電熱線8
の外径を上から大中小にすると共に、コイルピッチを上
から小中大にして電力密度が上から小中大になる様にし
ている。In other words, in this example, the electric heater 5 is divided into three parts, upper, middle, and lower, and the heating wire 8 is divided so that the voltage, resistance, and output of these parts are the same.
The outer diameter of the coil is made small, medium and large from the top, and the coil pitch is made small, medium and large from the top, so that the power density becomes small, medium and large from the top.
この様にすれば、氷管4の上方の蒸気部では電力密度が
小さく、水管4の下方の高温水部では電力密度が大きく
なるので、効率良く水を加熱する事ができ、電気ヒータ
5の小型化と長寿命化を図る事ができる。In this way, the power density is low in the steam section above the ice tube 4, and the power density is high in the high temperature water section below the water tube 4, so water can be heated efficiently, and the electric heater 5 Miniaturization and long life can be achieved.
電気ヒータ5は、先の実施例では、その内部には何も設
けなかったが、これに限らず、例えば第13図に示す第
が実施例の如く、芯材16を挿入しても良い。Although nothing was provided inside the electric heater 5 in the previous embodiment, the present invention is not limited to this, and a core material 16 may be inserted, for example, as in the embodiment shown in FIG.
つまり、この例では、円筒状を呈して下部が閉塞されて
いると共に、上部には外気に開放する空気孔17が穿設
され、基部が上ヘッダ2を貫通して固定されている。That is, in this example, it has a cylindrical shape with a closed lower part, an air hole 17 that opens to the outside air in the upper part, and a base part that passes through the upper header 2 and is fixed thereto.
この様にすれば、可撓性あるコイル状の電気ヒータ5を
サポートできると共に、水管4内の水量が減少して起動
時間を短縮する事ができる(発明の効果)
以上既述した如く、本発明に依れば、次の様な優れた効
果を奏する事ができる。In this way, it is possible to support the flexible coil-shaped electric heater 5, and the amount of water in the water pipe 4 is reduced, thereby shortening the startup time (effects of the invention). According to the invention, the following excellent effects can be achieved.
(1)ヘッダ、水管、電気ヒータとで構成し、とりわけ
電気ヒータをコイル状にしたので、単位容積当りの電気
容量を大きくでき、この為ボイラ出力を増大する事がで
きる。(1) It is composed of a header, a water pipe, and an electric heater, and especially since the electric heater is coil-shaped, the electric capacity per unit volume can be increased, and therefore the boiler output can be increased.
(2)電気ヒータをコイル状にするだけであるので、構
造が複雑化せず、コストも余り掛らない。(2) Since the electric heater is simply made into a coil, the structure is not complicated and the cost is not too high.
(3)電気ヒータをコイル状にするだけであるの屯 で、既存のものへも容易に適用できる。(3) Just make the electric heater into a coil shape. Therefore, it can be easily applied to existing systems.
上下のヘッダと水管とを離脱可能に接続した場合は、水
管や電気ヒータの保守点検が容易となる。If the upper and lower headers and water pipes are removably connected, maintenance and inspection of the water pipes and electric heaters becomes easier.
(5)上下のヘッダと木管とを各水管毎に分割して離脱
可能に接続した場合は、必要な容量の蒸気ボイラを容易
に製作できる。(5) If the upper and lower headers and wood pipes are separated for each water pipe and removably connected, a steam boiler with the required capacity can be easily manufactured.
電気ヒータを下ヘッダの下部から水管内に挿入した場合
は、電気ヒータの過熱損傷を防止できると共に、挿入に
要する下方寸法を小さくできる。When the electric heater is inserted into the water pipe from the lower part of the lower header, damage to the electric heater from overheating can be prevented, and the downward dimension required for insertion can be reduced.
(7)電気ヒータを上下方向に於て電力密度を変えた場
合は、効率良く水を加熱でき、電気ヒータの小型化と長
寿命化を図る事ができる。(7) When the power density of the electric heater is changed in the vertical direction, water can be heated efficiently, and the electric heater can be made smaller and have a longer life.
(8)電気ヒータ内に芯材を挿入した場合は、電気ヒー
タをサポートできると共に、起動時間を短縮できる。(8) When a core material is inserted into the electric heater, the electric heater can be supported and the startup time can be shortened.
第1図は、本発明の実施例に係る電気式貫流蒸気ボイラ
を示す一部破断正面図。
(4)
(6)
第2図は、電気ヒータを示す要部拡大正面図。
第3図は、電気ヒータを示す要部拡大横断平面図。
第4図は、第二実施例を示す正面図。
第5図よ、第三実施例を示す平面図。
第6図よ、第5図の一部破断正面図。
第7図よ、第5図の側面図。
第8図よ、第四実施例を示す平面図。
第9図よ、第8図の一部破断正面図。
第10図は、第8図の側面図。
第11図は、第五実施例を示す電気ヒータの略式正面図
。
第12図は、第11図の電気ヒータの結線図。
第13図は、第六実施例を示す要部縦断正面図。
・・・・・・電気式貫流蒸気ボイ
・・・・・・上ヘッダ
・・・・・・下ヘッダ
・・・・・・水 管
・・・・・・電気ヒータ
フ
第2図
第1図
第3医
第4図
第5図
4
第6図
第77図FIG. 1 is a partially cutaway front view showing an electric once-through steam boiler according to an embodiment of the present invention. (4) (6) FIG. 2 is an enlarged front view of the main parts of the electric heater. FIG. 3 is an enlarged cross-sectional plan view of the main parts of the electric heater. FIG. 4 is a front view showing the second embodiment. FIG. 5 is a plan view showing the third embodiment. FIG. 6 is a partially cutaway front view of FIG. 5. Figure 7, a side view of Figure 5. FIG. 8 is a plan view showing the fourth embodiment. FIG. 9 is a partially cutaway front view of FIG. 8. FIG. 10 is a side view of FIG. 8. FIG. 11 is a schematic front view of an electric heater showing a fifth embodiment. FIG. 12 is a wiring diagram of the electric heater shown in FIG. 11. FIG. 13 is a longitudinal sectional front view of the main part showing the sixth embodiment. ......Electric once-through steam boiler...Top header...Bottom header...Water pipe...Electric heater Figure 2 Figure 1 3 doctors, Figure 4, Figure 5, Figure 4, Figure 6, Figure 77.
Claims (1)
と、水管内に挿入したコイル状の電気ヒータと、から構
成した事を特徴とする電気式貫流蒸気ボイラ。 2、上下のヘッダと水管とを離脱可能に接続した請求項
1記載の電気式貫流蒸気ボイラ。3、上下のヘッダと水
管とを各水管毎に分割して離脱可能に接続した請求項1
記載の電気式貫流蒸気ボイラ。 4、電気ヒータを、下ヘッダの下部から水管内に挿入し
た請求項1記載の電気式貫流蒸気ボイラ。 5、電気ヒータを、上下方向に於て電力密度を変えた請
求項1記載の電気式貫流蒸気ボイラ。 6、電気ヒータ内に芯材を挿入した請求項1記載の電気
式貫流蒸気ボイラ。[Claims] 1. An electric once-through steam boiler comprising upper and lower headers, a plurality of water pipes connected between them, and a coil-shaped electric heater inserted into the water pipes. 2. The electric once-through steam boiler according to claim 1, wherein the upper and lower headers and the water pipes are removably connected. 3. Claim 1 in which the upper and lower headers and water pipes are separated and removably connected to each water pipe.
Electric once-through steam boiler as described. 4. The electric once-through steam boiler according to claim 1, wherein the electric heater is inserted into the water pipe from the lower part of the lower header. 5. The electric once-through steam boiler according to claim 1, wherein the electric heater has different power density in the vertical direction. 6. The electric once-through steam boiler according to claim 1, wherein a core material is inserted into the electric heater.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17776889A JPH0345801A (en) | 1989-07-10 | 1989-07-10 | Electric once-through boiler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17776889A JPH0345801A (en) | 1989-07-10 | 1989-07-10 | Electric once-through boiler |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0345801A true JPH0345801A (en) | 1991-02-27 |
Family
ID=16036788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17776889A Pending JPH0345801A (en) | 1989-07-10 | 1989-07-10 | Electric once-through boiler |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0345801A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200449204Y1 (en) * | 2008-07-04 | 2010-06-24 | 박승구 | Electric Boiler of a Fast Heat Transfor |
CN105222112A (en) * | 2015-11-09 | 2016-01-06 | 陈建国 | Fast electric steam generator |
CN109751761A (en) * | 2017-11-07 | 2019-05-14 | 三浦工业株式会社 | Electric boiler |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821702B2 (en) * | 1974-07-30 | 1983-05-02 | ベ−リンガ− マンハイム ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Ekitaichiyuunonaiyoubutsuokenshutsusultameno Anteinashikenhen |
JPS6219603A (en) * | 1985-07-17 | 1987-01-28 | 株式会社東芝 | Tube type electric boiler |
JPS6226645U (en) * | 1985-07-30 | 1987-02-18 |
-
1989
- 1989-07-10 JP JP17776889A patent/JPH0345801A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821702B2 (en) * | 1974-07-30 | 1983-05-02 | ベ−リンガ− マンハイム ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Ekitaichiyuunonaiyoubutsuokenshutsusultameno Anteinashikenhen |
JPS6219603A (en) * | 1985-07-17 | 1987-01-28 | 株式会社東芝 | Tube type electric boiler |
JPS6226645U (en) * | 1985-07-30 | 1987-02-18 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200449204Y1 (en) * | 2008-07-04 | 2010-06-24 | 박승구 | Electric Boiler of a Fast Heat Transfor |
CN105222112A (en) * | 2015-11-09 | 2016-01-06 | 陈建国 | Fast electric steam generator |
CN109751761A (en) * | 2017-11-07 | 2019-05-14 | 三浦工业株式会社 | Electric boiler |
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