JPH01178335A - Manufacture of double heat transfer pipe - Google Patents
Manufacture of double heat transfer pipeInfo
- Publication number
- JPH01178335A JPH01178335A JP33482787A JP33482787A JPH01178335A JP H01178335 A JPH01178335 A JP H01178335A JP 33482787 A JP33482787 A JP 33482787A JP 33482787 A JP33482787 A JP 33482787A JP H01178335 A JPH01178335 A JP H01178335A
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- tube
- sheet
- double
- heat exchanger
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract 2
- 238000001514 detection method Methods 0.000 description 10
- 239000006262 metallic foam Substances 0.000 description 8
- 238000005304 joining Methods 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000011162 core material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
- Pipeline Systems (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、 ？ｅＬ体ナトナトリウム温加熱媒体とする
高速増殖炉等の蒸気発生器内に設けられる二重伝熱管の
製作方法に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention includes: ? This invention relates to a method for manufacturing a double heat transfer tube installed in a steam generator such as a fast breeder reactor that uses eL sodium as a heating medium.
（従来の技術）
従来の蒸気発生器を第３．４図により説明すると、（０
１）が二重伝熱管で、同二重伝熱管（０１）が第３図に
示すように伝熱内管（Ｏｌａ）と伝熱外管（０１ｂ）と
により構成され、同伝熱内管（Ｏｌａ）と同伝熱外管（
Ｏｌｂ）との間に漏洩検知用縦溝（０１，ｂ、）が形成
され、同二重伝熱管（０１）の途中に胴側との熱膨張差
等を吸収するために伸縮部（０１°）が設けられている
。この二重伝熱管（０１）は、伝熱外管（Ｏｌｂ）素材
の内面４箇所を削り加工して、漏洩検知用縦溝（Ｏｌｂ
、）を形成し１次いで伝熱内管（Ｏｌａ）素材を伝熱外
管（Ｏｌｂ）素材内へ挿入した後、同伝熱内管（Ｏｌａ
）素材及び伝熱外管（Ｏｌｂ）素材を引抜き加工するこ
とにより、製作している。また第４図の（０４）が蒸気
発生器の上部内に設けた蒸気室管板、（０５）が蒸気発
生器の下部内に設けた氷室管板、（０６）が上記蒸気室
管板（０４）よりも下方の蒸気発生器の上部内に設けた
隔離板、 （０７）が同隔離板（０６）と上記蒸気室管
板（０４）との間に形成した漏洩プレナム、 （０８）
が上記蒸気室管板（０４）の上方の蒸気発生器内に形成
した蒸気室、 （０９）が上記氷室管板（０５）の下方
の蒸気発生器内に形成した氷室で、上記二重伝熱管（０
１）のうち、伝熱内管（Ｏｌａ）の上端部が上記蒸気室
管板（０４）に取付けられて、同伝熱内管（Ｏｌａ）の
上端部が上記蒸気室（０８）に開口し、同伝熱内管（Ｏ
ｌａ）及び上記伝熱外管（Ｏｌｂ）の下端部が上記氷室
管板（０５）に取付けられて、同伝熱内管（Ｏｌａ）の
下端部が上記氷室（０９）に開口する一方。(Prior art) A conventional steam generator will be explained with reference to Fig. 3.4.
1) is a double heat transfer tube, and the double heat transfer tube (01) is composed of an inner heat transfer tube (Ola) and an outer heat transfer tube (01b) as shown in FIG. (Ola) and the same heat transfer outer tube (
A vertical groove (01,b,) for leak detection is formed between the double heat exchanger tube (01), and an expandable part (01° ) is provided. This double heat exchanger tube (01) is made by cutting the inner surface of the outer heat exchanger tube (Olb) material at four places to create vertical grooves for leak detection (Olb).
), and then inserting the heat transfer inner tube (Ola) material into the heat transfer outer tube (Olb) material, and then inserting the heat transfer inner tube (Ola) into the heat transfer inner tube (Olb) material.
) material and heat transfer outer tube (Olb) material by drawing. In addition, (04) in Fig. 4 is the steam chamber tube plate installed in the upper part of the steam generator, (05) is the ice chamber tube plate installed in the lower part of the steam generator, and (06) is the steam chamber tube plate ( (04) A separator provided in the upper part of the steam generator below (07), a leakage plenum formed between the separator (06) and the steam chamber tube plate (04), (08)
is the steam chamber formed in the steam generator above the steam chamber tube plate (04), and (09) is the ice chamber formed in the steam generator below the ice chamber tube plate (05). heat tube (0
In 1), the upper end of the heat transfer inner pipe (Ola) is attached to the steam chamber tube plate (04), and the upper end of the heat transfer inner pipe (Ola) opens into the steam chamber (08). , the same heat transfer inner tube (O
la) and the lower end of the outer heat transfer tube (Olb) is attached to the ice chamber tube plate (05), and the lower end of the inner heat transfer tube (Ola) opens into the ice chamber (09).
同伝熱内管（Ｏｌａ）と同伝熱外管（Ｏｌｂ）との間が
同氷室管板（０５）によりシールされ、上記伝熱外管（
Ｏｌｂ）の上端部が上記隔離板（０７）に取付けられて
。The space between the heat transfer inner tube (Ola) and the heat transfer outer tube (Olb) is sealed by the ice chamber tube plate (05), and the heat transfer outer tube (Olb) is sealed by the ice chamber tube plate (05).
The upper end of the separator (07) is attached to the separator (07).
同伝熱外管（Ｏｌｂ）の上端部が上記漏洩プレナム（０
７）に開口しており、氷室（０９）から伝熱内管（Ｏｌ
ａ）の下端部内へ流入した給水が二重伝熱管（０１）外
を流れる高温ナトリウムにより加熱されて、蒸気になり
、この蒸気が伝熱内管（Ｏｌａ）の上端部から蒸気室（
０８）を経て蒸気発生器外へ取り出される。また伝熱内
管（Ｏｌａ）または伝熱外管（Ｏｌｂ）が破損したとき
、不活性ガスまたは蒸気が伝熱内管（Ｏｌａ）と伝熱外
管（Ｏｌｂ）との間に形成した漏洩検知用縦溝（Ｏｌｂ
、）内から漏洩漏洩プレナム（０７）を経て蒸気発生器
外へ導かれて、伝熱内管（Ｏｌａ）または伝熱外管（Ｏ
ｌｂ）の破損が検知されるようになっている。The upper end of the heat transfer outer tube (Olb) is connected to the leakage plenum (0
7), and from the ice chamber (09) to the heat transfer inner tube (Ol
The feed water that has flowed into the lower end of a) is heated by the high-temperature sodium flowing outside the double heat transfer tube (01) and becomes steam, and this steam flows from the upper end of the heat transfer inner tube (Ola) to the steam chamber (
08) and taken out of the steam generator. In addition, when the inner heat transfer tube (Ola) or outer heat transfer tube (Olb) is damaged, inert gas or steam is detected to be leaked between the inner heat transfer tube (Ola) and the outer heat transfer tube (Olb). Vertical groove (Olb)
, ) from inside the steam generator via the leakage plenum (07) and the heat transfer inner tube (Ola) or the heat transfer outer tube (Ola).
lb) damage can now be detected.
（発明が解決しようとする問題点） 前記第３．４図に示す従来の蒸気発生器では。(Problem that the invention attempts to solve) In the conventional steam generator shown in FIG. 3.4 above.
伝熱外管（Ｏｌｂ）素材の内面４箇所を削り加工して。The inner surface of the heat transfer outer tube (Olb) material is machined at four locations.
漏洩検知用縦溝（０１ｂ１）を形成し９次いで伝熱内管
（Ｏｌａ）素材を伝熱外管（Ｏｌｂ）素材内へ挿入した
後。After forming the leak detection vertical groove (01b1) and inserting the heat transfer inner tube (Ola) material into the heat transfer outer tube (Olb) material.
同伝熱内管（Ｏｌａ）素材及び伝熱外管（Ｏｌｂ）素材
を引抜き加工することにより、二重伝熱管（０１）を製
作しているが、伝熱外管（Ｏｌｂ）素材の内面４箇所を
削り加工して、漏洩検知用′ｆＦｉ１ｔＪＩ（Ｏｌｂ、
）を形成するのは１面倒である。また削り加工機の性能
によりに二重伝熱管（Ｏｌ）の長さが制約されて、長尺
の二重伝熱管（０１）では、漏洩検知用縦溝（Ｏｌｂ、
）を形成し難いという問題があった。The double heat transfer tube (01) is manufactured by drawing the heat transfer inner tube (Ola) material and the heat transfer outer tube (Olb) material, but the inner surface of the heat transfer outer tube (Olb) material By machining the part, it is used for leak detection.
) is a hassle to form. In addition, the length of the double heat exchanger tube (Ol) is limited by the performance of the cutting machine, so in the long double heat exchanger tube (01), the vertical groove for leak detection (Ol),
) was difficult to form.
（問題点を解決するための手段）
本発明は前記の問題点に対処するもので、シート状発泡
金属を円筒状に成形し１次いで同シート状発泡金属より
なる円筒体を伝熱内管素材と伝熱外管素材との間に介装
して、三重管構造体にした後、同三重管構造体を引抜き
加工して、二重伝熱管を製作することを特徴としている
。(Means for Solving the Problems) The present invention addresses the above-mentioned problems by forming a sheet-like foamed metal into a cylindrical shape, and then forming a cylindrical body made of the same sheet-like foamed metal into a heat-transfer inner tube material. The double heat transfer tube is manufactured by inserting the tube between the heat transfer tube material and the heat transfer outer tube material to form a triple tube structure, and then drawing the triple tube structure.
本発明の目的とする処は、漏洩検知用通路を伝熱内管と
伝熱外管との間に容易に形成できる。また長尺の二重伝
熱管でも、漏洩検知用通路を伝熱内管と伝熱外管との間
に形成できる。さらにシート状発泡金属を伝熱管素材に
焼付けたり、接合したりする作業を不用にできて９作業
性を改善できる上に、焼付は等に伴う伝熱管素材への悪
影響を解消できる改良された二重伝熱管の製作方法を供
する点にある。An object of the present invention is that a leakage detection passage can be easily formed between an inner heat transfer tube and an outer heat transfer tube. Further, even in the case of a long double heat transfer tube, a leakage detection passage can be formed between the inner heat transfer tube and the outer heat transfer tube. Furthermore, it is possible to improve workability by eliminating the need for baking or joining the sheet metal foam to the heat exchanger tube material. The present invention provides a method for manufacturing heavy heat exchanger tubes.
（作用）
本発明の二重伝熱管の製作方法は前記のようにシート状
発泡金属、即ち、海綿のような３次元の網目状骨格を有
する多孔金属を円筒状に成形し。(Function) As described above, the method for manufacturing the double heat exchanger tube of the present invention involves forming a sheet metal foam, that is, a porous metal having a three-dimensional mesh skeleton like a sponge, into a cylindrical shape.
次いで同シート状発泡金属よりなる円筒体を伝熱内管素
材と伝熱外管素材との間に介装して、三重管ｔｆＪ造体
にした後、同三重管構造体を引抜き加工して、二重伝熱
管を製作する。Next, a cylindrical body made of the same sheet-like foamed metal was interposed between the heat transfer inner tube material and the heat transfer outer tube material to form a triple tube TFJ structure, and then the triple tube structure was drawn. , manufacture double heat exchanger tubes.
（実施例）
次に本発明の二重伝熱管の製作方法を第１．２図に示す
一実施例により説明すると、第１図の（１）が二重伝熱
管、 （ｌａ）が伝熱内管、 （ｌｂ）が伝熱外管、（
２）が同伝熱内管（１ａ）と同伝熱外管（１ｂ）との間
に介装したシート状発泡金属で、同二重伝熱管（１）を
製作するに当たっては、まず第２図（Ｉ）−（ＩＩ）に
示すようにシート状発泡金属（海綿のような３次元の網
目状骨格を有する多孔金属）（２）を円柱状心材（１０
）に巻き付け、同シート状発泡金属（２）の両側縁を長
平方向にスウエージングにより接合して１円筒状に成形
する。。このときの同シート状発泡金属（２）の接合部
付近の空孔率は、第２図（■′）に示すように接合部以
外の部分が９８％、接合部が９６％である。また第２図
（ＩＩＩ）に示すように上記シート状発泡金属（２）よ
りなる円筒体と同様に構成した他の円筒体との隣接端部
を周方向にスウエージングにより接合して、シート状発
泡金属（２）よりなる長尺の円筒体を製作する。(Example) Next, the manufacturing method of the double heat exchanger tube of the present invention will be explained using an example shown in Fig. 1.2. The inner tube, (lb) is the heat transfer outer tube, (
2) is a sheet-shaped foamed metal inserted between the heat transfer inner tube (1a) and the heat transfer outer tube (1b), and in manufacturing the double heat transfer tube (1), first As shown in Figures (I)-(II), a sheet-like foamed metal (a porous metal with a three-dimensional network skeleton like a sponge) (2) is attached to a cylindrical core material (10
), and the both side edges of the sheet-shaped metal foam (2) are joined by swaging in the longitudinal direction to form a cylindrical shape. . At this time, the porosity near the joint of the sheet metal foam (2) is 98% in the area other than the joint and 96% in the joint, as shown in FIG. 2 (■'). Further, as shown in FIG. 2 (III), the adjacent ends of the cylindrical body made of the sheet-shaped metal foam (2) and another cylindrical body constructed in the same manner are joined by swaging in the circumferential direction. A long cylindrical body made of foamed metal (2) is manufactured.
このときの同シート状発泡金属（２）の接合部付近の空
孔率は、第２図（■“）に示すように接合部以外の部分
が９８％、接合部が９６％である。なお同接合部は、第
２図（ＩＩ［”）−第２図（ＩＩＩ”’）に示すように
海綿のような３次元の網目状骨格を有する多孔金属が絡
み合うように接合して、接合後には、剥離することがな
い。次いで第２図（ＩＶ）−第２図（Ｖ）に示すように
伝熱内管（１ａ）素材をシート状発泡金属（２） （２
）よりなる円筒体内へ挿入し、伝熱外管（１ｂ）素材を
シート状発泡金属（２） （２＞よりなる円筒体外へ被
嵌して、三重管構造体にし。At this time, the porosity near the joint of the same sheet-shaped metal foam (2) is 98% in the area other than the joint and 96% in the joint, as shown in Figure 2 (■''). As shown in Figure 2 (II [") - Figure 2 (III"'), the joint is made by joining so that porous metals having a three-dimensional network skeleton like a sponge are intertwined, and after joining, Then, as shown in FIG. 2 (IV) to FIG.
), and the heat transfer outer tube (1b) material is fitted onto the outside of the cylinder made of sheet-shaped foamed metal (2) (2>) to form a triple tube structure.
次いで第２図（ＶＩ）に示すように同三重管構造体をダ
イス（１１）により引抜き加工して、二重伝熱管を製作
する。なおダイス（１１）の孔径及びシート状発泡金属
（２）よりなる円筒体の口径を変えることにより、シー
ト状発泡金属（２）よりなる円筒体の空孔率を調節でき
る。Next, as shown in FIG. 2 (VI), the triple tube structure is drawn using a die (11) to produce a double heat exchanger tube. Note that the porosity of the cylindrical body made of the sheet-like foamed metal (2) can be adjusted by changing the hole diameter of the die (11) and the diameter of the cylindrical body made of the sheet-like foamed metal (2).
（発明の効果）
本発明の二重伝熱管の製作方法は前記のようにシート状
発泡金属、即ち、海綿のような３次元の網目状骨格を有
する多孔金属を円筒状に成形し。(Effects of the Invention) As described above, the method for manufacturing a double heat exchanger tube of the present invention involves forming a sheet-like foamed metal, that is, a porous metal having a three-dimensional mesh-like skeleton like a sponge, into a cylindrical shape.
次いで同シート状発泡金属よりなる円筒体を伝熱内管素
材と伝熱外管素材との間に介装して、三重管構造体にし
た後、同三重管構造体を引抜き加工して、二重伝熱管を
製作するので、伝熱外管素材の内面複数箇所を削り加工
して、漏洩検知用縦溝を形成する必要がなくて、′１ａ
洩検知用通路を伝熱内管と伝熱外管との間に容易に形成
できる。Next, a cylindrical body made of the same sheet-like foamed metal was interposed between the heat transfer inner tube material and the heat transfer outer tube material to form a triple tube structure, and the triple tube structure was then subjected to drawing processing. Since we manufacture double heat transfer tubes, there is no need to cut multiple locations on the inner surface of the heat transfer outer tube material to form vertical grooves for leak detection.
A leak detection passage can be easily formed between the inner heat transfer tube and the outer heat transfer tube.
またシート状発泡金属よりなる円筒体の隣接端部をスウ
エージングにより接合して、所望の長さにするので、長
尺の二重伝熱管でも、漏洩検知用通路を伝熱内管と伝熱
外管との間に形成できる。In addition, since the adjacent ends of the cylindrical body made of sheet metal foam are joined by swaging to make the desired length, even in long double heat exchanger tubes, the leak detection passage is connected to the inner heat transfer tube. It can be formed between the outer tube and the outer tube.
またシート状発泡金属よりなる円筒体を伝熱内管素材と
伝熱外管素材との間に介装して、三重管構造体にした後
、同三重管構造体を引抜き加工して、二重伝熱管を製作
するので、シート状発泡金属を伝熱管素材に焼付けたり
、接合したりする作業を不用にできて１作業性を改善で
きる上に、焼付は等に伴う伝熱管素材への悪影響を解消
できる効果がある。In addition, a cylindrical body made of sheet-like foamed metal is interposed between the heat transfer inner tube material and the heat transfer outer tube material to form a triple tube structure, and then the triple tube structure is drawn to form a double tube structure. Since heavy heat exchanger tubes are manufactured, it is not necessary to bake or bond the sheet metal foam to the heat exchanger tube material, which improves work efficiency. It has the effect of eliminating.
【図面の簡単な説明】
第１図は本発明の二重伝熱管の製作方法により製作され
る二重伝熱管の一例を示す横断平面図。
第２図は本発明に係わる二重伝熱管の製作方法の一実施
例を示す説明図、第３図は従来の二重伝熱管を示す横断
平面図、第４図は同二重伝熱管を有する蒸気発生器の縦
断側面図である。
（１）・・・二重伝熱管、 （ｌａ） ・・・伝熱内
管、（１ｂ）・・・伝熱外管、（２）・・・シート状発
泡金属。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional plan view showing an example of a double heat exchanger tube manufactured by the method for manufacturing a double heat exchanger tube of the present invention. FIG. 2 is an explanatory diagram showing an example of the method for manufacturing a double heat exchanger tube according to the present invention, FIG. 3 is a cross-sectional plan view showing a conventional double heat exchanger tube, and FIG. 4 is a cross-sectional view showing the same double heat exchanger tube. FIG. (1)...Double heat transfer tube, (la)...Inner heat transfer tube, (1b)...Outer heat transfer tube, (2)...Sheet-like foamed metal.
Claims (1)
発泡金属よりなる円筒体を伝熱内管素材と伝熱外管素材
との間に介装して、三重管構造体にした後、同三重管構
造体を引抜き加工して、二重伝熱管を製作することを特
徴とした二重伝熱管の製作方法。After forming a sheet-like foamed metal into a cylindrical shape, and then inserting a cylindrical body made of the same sheet-like foamed metal between a heat transfer inner tube material and a heat transfer outer tube material to form a triple-pipe structure, A method for manufacturing a double heat exchanger tube, characterized by manufacturing a double heat exchanger tube by drawing the same triple tube structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33482787A JPH01178335A (en) | 1987-12-29 | 1987-12-29 | Manufacture of double heat transfer pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33482787A JPH01178335A (en) | 1987-12-29 | 1987-12-29 | Manufacture of double heat transfer pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01178335A true JPH01178335A (en) | 1989-07-14 |
Family
ID=18281659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33482787A Pending JPH01178335A (en) | 1987-12-29 | 1987-12-29 | Manufacture of double heat transfer pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01178335A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030075744A (en) * | 2002-03-20 | 2003-09-26 | 주식회사 한얼 | The process way of heat interchange pipe |
| CN101850392A (en) * | 2010-05-07 | 2010-10-06 | 佛山市顺德区华天成电器有限公司 | Method for processing compound pipe of heat excahnger |
-
1987
- 1987-12-29 JP JP33482787A patent/JPH01178335A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030075744A (en) * | 2002-03-20 | 2003-09-26 | 주식회사 한얼 | The process way of heat interchange pipe |
| CN101850392A (en) * | 2010-05-07 | 2010-10-06 | 佛山市顺德区华天成电器有限公司 | Method for processing compound pipe of heat excahnger |
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