JPH0225076B2 - - Google Patents
Info
- Publication number
- JPH0225076B2 JPH0225076B2 JP58091342A JP9134283A JPH0225076B2 JP H0225076 B2 JPH0225076 B2 JP H0225076B2 JP 58091342 A JP58091342 A JP 58091342A JP 9134283 A JP9134283 A JP 9134283A JP H0225076 B2 JPH0225076 B2 JP H0225076B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- heating
- main
- main pipe
- tube
- 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 - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Thermal Insulation (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は断熱管の接合方法に関する。[Detailed description of the invention] Industrial applications The present invention relates to a method for joining insulated pipes.
従来の技術
たとえば、重油、アスフアルト、パラフイン、
ペイント、チヨコレート等、低温または常温で粘
度の高い物質を加熱し、これらの粘度を下げた状
態で輸送する断熱管として、第１図に示すよう
に、粘性物質を輸送する本管（輸送管）１、この
本管に接して設けられるとともに、内部に電熱線
や高温流体が通される加熱管２、加えた熱を放散
させないために本管１と加熱管２とを囲む断熱材
３、そして以上のものを覆つて外荷重から保護す
る外管（保護管）４から成るものがあり、その継
手部５において加熱管２は屈曲して本管１から離
間させて本管１及び加熱管２がそれぞれ溶接接合
されている。この継手部５における構造は以下の
理由による。すなわち、本管１と加熱管２が継手
部５においても接する構造では、その相互に接し
合う部位において本管１どうし、および加熱管２
どうしを溶接接合するこができないからである。Conventional technology For example, heavy oil, asphalt, paraffin,
The main pipe (transport pipe) for transporting viscous substances, as shown in Figure 1, is an insulated pipe that heats and transports substances with high viscosity at low or room temperature, such as paint and tyokolate, and lowers their viscosity. 1. A heating tube 2 that is provided in contact with the main pipe and through which a heating wire or high-temperature fluid is passed, a heat insulating material 3 that surrounds the main pipe 1 and the heating pipe 2 in order to prevent the added heat from dissipating; There is an outer tube (protective tube) 4 that covers the above and protects it from external loads, and the heating tube 2 is bent at the joint 5 to separate it from the main tube 1. are welded together. The structure of this joint portion 5 is based on the following reasons. In other words, in a structure where the main pipe 1 and the heating pipe 2 are in contact also at the joint part 5, the main pipes 1 and the heating pipe 2 are
This is because they cannot be joined together by welding.
発明が解決しようとする課題
しかし、上記したように、加熱管が継手部で本
管から離間するように接合したのでは、継手部に
おいて加熱管による熱の伝達が十分に行われず、
配管としての熱効率が悪くなる問題があつた。Problems to be Solved by the Invention However, as described above, if the heating tube is joined so as to be separated from the main pipe at the joint, heat transfer by the heating tube will not be carried out sufficiently at the joint.
There was a problem that the thermal efficiency of the piping deteriorated.
本発明は上記課題を解決するもので、継手部に
おいて本管と加熱管が接する状態に本管どうし、
および加熱管どうしを接合することができる断熱
管の接合方法を提供することを目的とする。 The present invention solves the above-mentioned problem, and the main pipes are connected to each other in a state where the main pipe and the heating pipe are in contact at the joint part.
Another object of the present invention is to provide a method for joining heat-insulating pipes that can join heating pipes together.
課題を解決するための手段
上記課題を解決するために本発明は、本管に隣
接して加熱管を取付けるとともに、加熱管の管端
部を本管の管端部より長手方向に所定間隔を隔て
位置させ、本管と加熱管に外嵌して外管を設け、
本管と外管の関に断熱材を充填した断熱管の接合
方法であつて、一対の本管を互いに溶接接合し、
加熱管と同径の管部材を長手方向に沿つて２分割
した一対の半割部材の一方をその外周面が本管に
接する状態で一対の加熱管の間に介装し、該一方
の半割部材をその内周面側から加熱管に溶接接合
し、その後他方の半割部材をその長手方向に沿う
端面が一方の半割部材の長手方向に沿う端面に接
する状態で一対の加熱管の間に介装し、該他方の
半割部材をその外周面側から一方の半割部材及び
加熱管に溶接接合するものである。Means for Solving the Problems In order to solve the above problems, the present invention installs a heating pipe adjacent to a main pipe, and also sets the end of the heating pipe at a predetermined distance from the end of the main pipe in the longitudinal direction. An outer pipe is provided by placing it separately and fitting it over the main pipe and the heating pipe.
A method of joining insulated pipes in which a heat insulating material is filled between the main pipe and the outer pipe, in which a pair of main pipes are welded to each other,
A tube member having the same diameter as the heating tube is divided into two along the longitudinal direction, and one of the half members is inserted between the pair of heating tubes with its outer peripheral surface in contact with the main pipe. The split member is welded to the heating tube from its inner peripheral surface side, and then the pair of heating tubes is joined with the longitudinal end surface of the other half member in contact with the longitudinal end surface of the other half member. The other half member is welded to the one half member and the heating tube from the outer peripheral surface side.
作 用
上記した構成によれば、本管どうしを溶接接合
した後に、本管に接して配置される一方の半割部
材と加熱管を内周面側から溶接するので、継手部
において加熱管を本管に接した状態に接合するこ
とが可能となり、継手部において加熱管から本管
への熱伝達が十分に行なえ、配管としての熱効率
の良い状態に断熱管が接合される。Effect According to the above-mentioned configuration, after the main pipes are welded together, the heating pipe is welded from the inner circumferential side to one half member disposed in contact with the main pipe, so that the heating pipe is not connected at the joint. It becomes possible to join the pipe in contact with the main pipe, and heat transfer from the heating pipe to the main pipe can be sufficiently performed at the joint, and the heat-insulating pipe can be joined in a state with good thermal efficiency as piping.
実施例
以下、本発明の一実施例を第２図〜第７図にも
とづいて説明する。第２図、第３図は断熱管を示
し、１は金属製の本管、２は本管１に接して設け
られた金属製の加熱材、３は断熱材、そして４は
金属製あるいはプラスチツク製の外管であつて、
断熱材３は、本管１と外管４の間に充填された発
泡ウレタンフレームからなつている。ここで、加
熱管２はその管端部７が、本管１の管端部８より
長手方向に所定間隔ｌを隔てた状態で配管されて
いる。Embodiment Hereinafter, an embodiment of the present invention will be described based on FIGS. 2 to 7. Figures 2 and 3 show insulated pipes, where 1 is a metal main pipe, 2 is a metal heating material provided in contact with the main pipe 1, 3 is a heat insulating material, and 4 is a metal or plastic pipe. The outer tube is made of
The heat insulating material 3 consists of a foamed urethane frame filled between the main pipe 1 and the outer pipe 4. Here, the heating tube 2 is installed such that its tube end 7 is separated from the tube end 8 of the main tube 1 by a predetermined distance l in the longitudinal direction.
第４図は断熱管の継手部構造を示し、第５図及
び第６図は継手部の接合手順を示す。第５図に示
すように一対の本管１，１は突き合され、突き合
せ部１３は外周から溶接接合される。一対の加熱
管２，２の間には長さ２ｌの間〓９ができるが、
この間〓９には第７図に示すような加熱管７と同
径の管部材１０を介装する。この管部材１０は長
手方向に沿つて２分割された一対の半割部材１
１，１２からなつている。一方の半割部材１１は
第６図に示すようにその外周面が本管１に接する
状態で、一対の加熱管７の間に介装し、半割部材
１１と加熱管２との接合部１４を管内方側から溶
接接合する。その後、他方の半割部材１２を第４
図に示すようにその長手方向に沿う端面１２ａが
前記半割部材１１の長手方向に沿う端面１１ａに
接する状態で一対の加熱管７の間に介装し、加熱
管２との接合部１５及び一方の半割部材１１との
接合部分１６を管外方側より溶接接合する。この
ようにして形成された継手部５にはさらに一対の
外管４，４間にまたがる状態で外装部材を被せこ
の外装部材と本管１の間に断熱材を充填する。 FIG. 4 shows the structure of the joint of the heat-insulated pipe, and FIGS. 5 and 6 show the procedure for joining the joint. As shown in FIG. 5, the pair of main pipes 1, 1 are abutted against each other, and the abutted portion 13 is welded and joined from the outer periphery. Between the pair of heating tubes 2, 2, 9 is formed between the lengths of 2 l,
During this time, a tube member 10 having the same diameter as the heating tube 7 as shown in FIG. 7 is interposed in the tube 9. This tube member 10 is divided into two halves 1 along the longitudinal direction.
It consists of 1 and 12. As shown in FIG. 6, one half member 11 is inserted between the pair of heating tubes 7 with its outer peripheral surface in contact with the main pipe 1, and the joint between the half member 11 and the heating tube 2 is 14 are welded and joined from the inside of the pipe. After that, the other half member 12 is
As shown in the figure, it is interposed between a pair of heating tubes 7 with its longitudinal end surface 12a in contact with the longitudinal end surface 11a of the half member 11, and the joint portion 15 with the heating tube 2 and The joint portion 16 with one of the half members 11 is welded and joined from the outside of the tube. The thus formed joint portion 5 is further covered with an exterior member so as to span between the pair of outer tubes 4, and a heat insulating material is filled between the exterior member and the main pipe 1.
なお、上記実施例においては、管部材１０とし
て、両半割部材１１，１２の端面が揃つたものを
示したが、この端面は必ずしも揃える必要はな
い。第８図はこのようなものの一例を示し、本管
１に接する側の一方の半割部材２１よりも他方の
半割部材２２を長くし、かつその端面を斜めにカ
ツトしている。 In the above embodiment, the tube member 10 is shown in which the end faces of the two half members 11 and 12 are aligned, but the end faces do not necessarily need to be aligned. FIG. 8 shows an example of such a structure, in which the other half member 22 is longer than the one half member 21 on the side in contact with the main pipe 1, and its end face is cut diagonally.
発明の効果
以上述べたように本発明によると、本管どうし
を溶接接合した後に、本管に接して配置される一
方の半割部材と加熱管を内周面側から溶接するこ
とにより、継手部において加熱管を本管に接した
状態に接合することができ、加熱管から本管への
熱伝達が十分に行なえ、配管としての熱効率の良
い状態に断熱管を接合することができる。Effects of the Invention As described above, according to the present invention, after the main pipes are welded together, one of the half members disposed in contact with the main pipe and the heating pipe are welded from the inner circumferential side, thereby forming a joint. The heating tube can be joined to the main pipe in a state where the heating pipe is in contact with the main pipe, sufficient heat transfer from the heating pipe to the main pipe can be carried out, and the heat insulating pipe can be joined in a state with good thermal efficiency as piping.
第１図は従来例を示す断面図、第２図〜第７図
は本発明の一実施例を示し、第２図は断熱管の断
面図、第３図は第２図の−断面図、第４図は
継手部の一部切欠断面図、第５図および第６図は
継手部の接合手順を示す説明図、第７図は管部材
を示す斜視図、第８図は本発明の他の実施例を示
す図である。
１……本管、２……加熱管、３……断熱材、４
……外管、１０……管部材、１１，２１……一方
の半割部材、１２，２２……他方の半割部材。
FIG. 1 is a sectional view showing a conventional example, FIGS. 2 to 7 show an embodiment of the present invention, FIG. 2 is a sectional view of an insulated pipe, and FIG. FIG. 4 is a partially cutaway sectional view of the joint, FIGS. 5 and 6 are explanatory diagrams showing the procedure for joining the joint, FIG. 7 is a perspective view of the pipe member, and FIG. It is a figure showing an example of. 1...Main pipe, 2...Heating pipe, 3...Insulation material, 4
... Outer tube, 10 ... Pipe member, 11, 21 ... One half member, 12, 22 ... Other half member.
Claims (1)
加熱管の管端部を本管の管端部より長手方向に所
定間隔を隔て位置させ、本管と加熱管に外嵌して
外管を設け、本管と外管の間に断熱材を充填した
断熱管の接合方法であつて、一対の本管を互いに
溶接接合し、加熱管と同径の管部材を長手方向に
沿つて２分割した一対の半割部材の一方をその外
周面が本管に接する状態で一対の加熱管の間に介
装し、該一方の半割部材をその内周面側から加熱
管に溶接接合し、その後他方の半割部材をその長
手方向に沿う端面が一方の半割部材の長手方向に
沿う端面に接する状態で一対の加熱管の間に介装
し、該他方の半割部材をその外周面側から一方の
半割部材及び加熱管に溶接接合することを特徴と
する断熱管の接合方法。1 Install the heating pipe adjacent to the main pipe,
The pipe end of the heating pipe is located at a predetermined interval in the longitudinal direction from the pipe end of the main pipe, an outer pipe is provided by fitting the main pipe and the heating pipe externally, and a heat insulating material is provided between the main pipe and the outer pipe. A method of joining filled insulated pipes, in which a pair of main pipes are welded to each other, and a pipe member having the same diameter as the heating pipe is divided into two along the longitudinal direction, and one of the half members is It is inserted between a pair of heating tubes in contact with the main pipe, and one half member is welded to the heating tube from its inner circumference side, and then the other half member is attached to the end surface along its longitudinal direction. is interposed between a pair of heating tubes in a state where it is in contact with the end surface along the longitudinal direction of one half member, and the other half member is welded to the one half member and the heating tube from the outer peripheral surface side. A method for joining insulated pipes, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58091342A JPS59217093A (en) | 1983-05-23 | 1983-05-23 | How to join insulated pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58091342A JPS59217093A (en) | 1983-05-23 | 1983-05-23 | How to join insulated pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59217093A JPS59217093A (en) | 1984-12-07 |
| JPH0225076B2 true JPH0225076B2 (en) | 1990-05-31 |
Family
ID=14023741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58091342A Granted JPS59217093A (en) | 1983-05-23 | 1983-05-23 | How to join insulated pipes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59217093A (en) |
-
1983
- 1983-05-23 JP JP58091342A patent/JPS59217093A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59217093A (en) | 1984-12-07 |
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