JPS6159096A - Split type heat-insulating member - Google Patents

Split type heat-insulating member

Info

Publication number
JPS6159096A
JPS6159096A JP59180552A JP18055284A JPS6159096A JP S6159096 A JPS6159096 A JP S6159096A JP 59180552 A JP59180552 A JP 59180552A JP 18055284 A JP18055284 A JP 18055284A JP S6159096 A JPS6159096 A JP S6159096A
Authority
JP
Japan
Prior art keywords
side end
end plate
plate
end plates
heat insulating
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
Application number
JP59180552A
Other languages
Japanese (ja)
Inventor
前田 納
菅谷 秀雄
芳賀 浩一
正己 小岩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP59180552A priority Critical patent/JPS6159096A/en
Publication of JPS6159096A publication Critical patent/JPS6159096A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/08Means for preventing radiation, e.g. with metal foil

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は、分割型保温部材の改良に係り、保温部材同志
の合せ面の接触面積を少なくして、熱の放散を防止した
、分割型保温部材に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a split type heat insulating member, and relates to a split type heat insulating member in which the contact area of mating surfaces of heat insulating members is reduced to prevent heat dissipation.

原子力発電プラント等の高温高圧の熱媒体を取扱う機器
や配管は、定期検査が必要である。
Periodic inspections are required for equipment and piping that handle high-temperature, high-pressure heat media, such as in nuclear power plants.

この定期検査は、保温材を剥離して行なわれ、検査終了
後保温は復旧される。
This periodic inspection is performed by peeling off the heat insulation material, and after the inspection is completed, the heat retention is restored.

分割型保温部材は、このような場所及び目的で使用され
る。
The split type heat insulating member is used in such places and for such purposes.

又この分割型保温部材には、各種計器が組込まれている
ことが多く、その−例として、液体金属(ナトリウム)
を熱媒体として使用する高速増殖炉の高温機器や配管を
あげ、以下これについて説明する。
In addition, various types of meters are often incorporated into this split type heat insulation member, for example, liquid metal (sodium)
The high-temperature equipment and piping of a fast breeder reactor that uses ferrite as a heat medium will be described below.

従来の保温部材を第1図及び第2図に示す。A conventional heat retaining member is shown in FIGS. 1 and 2.

この保温部材は、高速#M炉の配管用の保温部材であり
、配管1内を流れているナトリウム又は、漏出してきた
ナトリウムを溶融するためのヒータ9と配管1の管壁温
度を計測するための熱1ヒ対10及びナトリウムの漏洩
を検出するためのナトリウム漏洩検出器11が組込まれ
ている。
This heat insulating member is a heat insulating member for the pipes of the high speed #M reactor, and is used to measure the temperature of the pipe wall of the pipe 1 and the heater 9 for melting sodium flowing in the pipe 1 or leaking sodium. A heat sink 10 and a sodium leak detector 11 for detecting sodium leaks are incorporated.

保温材4は、通常のロックウール保温材、グラスクール
保温材、又は薄い金属箔を積層した保温材であり、これ
ら保温材4を1.内装板2と外装板3及び側端板5と横
端板6とで被覆し、保温部材全形成している。
The heat insulating material 4 is a normal rock wool heat insulating material, a glass cool heat insulating material, or a heat insulating material laminated with thin metal foil. The interior plate 2, the exterior plate 3, the side end plates 5, and the lateral end plates 6 cover the entire heat insulating member.

このようにして形成された保温部材は、側端板5の部分
で、円周上のある角間隔をもって2〜4に分割され、又
長手方向に対しては、横端板6の部分で、50センチか
ら数メートルの長さに分割されている。
The heat retaining member thus formed is divided into 2 to 4 parts at certain angular intervals on the circumference at the side end plate 5, and in the longitudinal direction, at the lateral end plate 6. It is divided into lengths ranging from 50 cm to several meters.

このようにしてIf、型された分割型の保温部材は側端
板5同志及び横端板6同志を密着させた状態で、スベー
ザ12を介して、配管1の外周面との間に一定の環状隙
間をもって袋層され、図示省略のバックル又はバンドに
よって着脱可能なように取付けられている。
In this way, if the molded split-type heat insulating member is in close contact with the side end plates 5 and 6, there is a certain distance between it and the outer peripheral surface of the pipe 1 via the smoother 12. The bag is layered with an annular gap and is detachably attached with a buckle or band (not shown).

又別の従来例として第3図及び第4図に示すように、1
i4II端板5及び横端板6を階段状に成形して相互に
嵌め合せるようにし、配管1と内装管2ととの間の環状
隙間にある空気層の対流を防止したものもある。
As another conventional example, as shown in FIGS. 3 and 4, 1
There is also one in which the i4II end plate 5 and the lateral end plate 6 are formed into a stepped shape so that they fit into each other to prevent convection of the air layer in the annular gap between the pipe 1 and the inner pipe 2.

このように構成した従来の保温部材において、配管1内
を流れている置部のナトリウムの熱は、配管1と内装管
2との間の空気層に伝導される。
In the conventional heat retaining member configured as described above, the heat of the sodium flowing in the pipe 1 is conducted to the air layer between the pipe 1 and the inner pipe 2.

この空気層は、保温材によって保温されているので熱の
放散はなく、配管1の管壁温度に近い高い温度に保持さ
れる。
Since this air layer is kept warm by the heat insulating material, no heat is dissipated, and the temperature is maintained at a high temperature close to the pipe wall temperature of the pipe 1.

併しながら、上記空気層の熱は、内装管2に伝導され、
次いで、側端板5及び横端板6を通して外装板3に伝わ
り、外部に放熱される。
However, the heat of the air layer is conducted to the inner pipe 2,
The heat is then transmitted to the exterior plate 3 through the side end plates 5 and 6, and is radiated to the outside.

その結果、側端板5と横端板6のめる部分の外装板3の
温度が高くなり、換言すると、この部分の空気層乃至は
配管1の管壁温度の低下をもたらし、配管1の管壁温度
の測定に誤着を生じさせたり、又漏洩ナトリウムt−凝
固させ、漏洩ナトリウムの検出が不可能になるという欠
点があった。又このような、極部冷却(配管1と内装管
2)及び極部加熱(外装管3)は、その部分に大きな熱
応力が発生して、亀裂乃至は腐蝕をg発し、配管1にあ
っては、ナトリウム漏出の原因となり、又内装管2及び
外装管3にあっては、断熱材4が粉塵となって外部に放
散され、放射能汚染の原因となシ、プラントの信頼性を
低下させるという欠点があった。
As a result, the temperature of the exterior plate 3 at the part where the side end plate 5 and the side end plate 6 are fitted increases, in other words, the air layer in this part or the pipe wall temperature of the pipe 1 decreases, and the pipe wall of the pipe 1 This method has disadvantages in that it causes errors in temperature measurements, and also causes the leaked sodium to coagulate, making it impossible to detect the leaked sodium. In addition, such extreme cooling (piping 1 and inner pipe 2) and extreme heating (exterior pipe 3) generates large thermal stress in those parts, causing cracks or corrosion, and causing damage to piping 1. In the case of the inner pipe 2 and the outer pipe 3, the insulation material 4 becomes dust and is dispersed to the outside, causing radioactive contamination and reducing the reliability of the plant. It had the disadvantage of letting you do it.

この欠点を少しでも補うために、側端板5同志の合せ面
及び横端板6の合せ面に断熱材を装填し、熱伝導効果を
少なくしたが、装填した断熱材の粉塵が発生し、放射性
廃棄物を外部に放放し、汚染するという欠点があった。
In order to compensate for this shortcoming, a heat insulating material was loaded on the mating surfaces of the side end plates 5 and the mating surfaces of the side end plates 6 to reduce the heat conduction effect, but the loaded heat insulating material generated dust. The drawback was that radioactive waste was released outside, causing contamination.

本発明は、側端板同志及び横端板同志の接触面積を少な
くして熱の放散を抑制し、上記従来の欠点を解決した分
割型保温部材を提供せんとするものでおる。
The present invention aims to provide a split type heat insulating member that solves the above-mentioned conventional drawbacks by reducing the contact area between the side end plates and between the side end plates to suppress heat dissipation.

即ち本発明は、側端板同志及び横端板同志の接触面積を
小さくすることによって熱伝導量を少なくしたものであ
り、内装板と外装板及び側端板と横端板とで保温材を被
覆して成る分割型保温部材において、側端板と横端板を
網目状の板とし、高温用、鷺器又は配管に該保温材を袋
層した際、側端板同志及び横端板同志の接j独面積を小
さくシ、内装板からの伝熱量を極力少なくしたことを特
徴とする。又側端板及び横端板の網目部に箔を貼設し、
保温材の粉塵の放散を防止し、外部への放射能漏出をも
少なくしたことを特徴とする。
In other words, the present invention reduces the amount of heat conduction by reducing the contact area between the side end plates and between the side end plates. In the split-type heat insulating member formed by coating, the side end plates and the lateral end plates are mesh-like plates, and when the heat insulating material is layered in a bag layer for high temperature use, a heron holder, or piping, the side end plates and the lateral end plates overlap each other. It is characterized by having a small contact area and minimizing the amount of heat transferred from the interior panel. Also, pasting foil on the side end plate and the mesh part of the side end plate,
It is characterized by preventing the dispersion of dust from the insulation material and reducing leakage of radioactivity to the outside.

以下本発明の一実施例について詳細に説明する。An embodiment of the present invention will be described in detail below.

先ず詳細な説明に当って本実施例の概略を説明する。First, an outline of this embodiment will be explained in detail.

第5図において、保温材4は、内装板2、外装板3、側
端板5及び横端板6によって被覆され、保温部材を形成
している。この保温部材の側端板5及び横端板6には、
円形又は長孔が穿設された網目状となっている。このよ
うに側端板5と横端板6を網目状にすることにより、組
立てた際の接触面積を小さくシ、内装板2からの熱伝導
効果を少なくしたものである。
In FIG. 5, the heat insulating material 4 is covered with an interior plate 2, an exterior plate 3, side end plates 5, and lateral end plates 6 to form a heat insulating member. The side end plate 5 and the lateral end plate 6 of this heat insulating member include
It is circular or has a mesh shape with long holes. By making the side end plates 5 and the lateral end plates 6 mesh-like in this way, the contact area when assembled is reduced, and the heat conduction effect from the interior board 2 is reduced.

父上記網目部分に箔14を貼設して保温材の発塵を防止
し、外部への放射能の漏洩を防止している。
A foil 14 is pasted on the mesh portion of the heat insulating material to prevent dust generation and to prevent leakage of radioactivity to the outside.

以下その詳細を更に詳しく説明する。The details will be explained in more detail below.

第5図は、側端板と横端板を階段状にした場合の実施例
である。
FIG. 5 shows an embodiment in which the side end plates and the lateral end plates are shaped like steps.

図において、保昌材4は、内装板2、外装板3、側端板
5及び横端板6によって被覆され、本実施例の場合は、
円周方向に二分割した保温部材を形成している。この保
温部材において、側端板5には長孔を又横端板6には円
形状孔を穿設したfI′f4目状となっている。
In the figure, the protective material 4 is covered with an interior plate 2, an exterior plate 3, a side end plate 5, and a side end plate 6, and in the case of this embodiment,
A heat insulating member is formed which is divided into two in the circumferential direction. In this heat insulating member, the side end plates 5 are provided with elongated holes, and the lateral end plates 6 are provided with circular holes in a four-hole shape.

又横端板6のAl11目形状として、第7図に三角形状
の孔を、第8図は、内装板2と外装板3との間に定形状
結合材15を架設したものであり、又1.49図は、内
装板2と外装板3との間に棒状結合材16を架設し、横
端板を網目状にしている、これら網目部には、第6図に
示すように箔14が貼設されている。
In addition, as for the 11th Al mesh shape of the side end plate 6, a triangular hole is provided in FIG. 7, and a shaped bonding material 15 is installed between the interior panel 2 and the exterior panel 3 in FIG. 8, and In Figure 1.49, a bar-shaped binding material 16 is installed between the interior panel 2 and the exterior panel 3, and the lateral end plates are mesh-shaped.These mesh sections are covered with foil 14 as shown in Figure 6. is pasted.

以上のように構成した本実施例の作用を次に説明する。The operation of this embodiment configured as above will be explained next.

分割型保温部材は、側端板5同志及び横端板6同志を密
着させた状態で組立てられる。この相互の密着部分は、
側端板5及び横端板6に穿設された孔部以外の所で接触
する。又は、第5図に示した側端板5のようにある間隔
でもって孔を明けた場合は、それに対応する側端板5の
孔部を、上記孔と孔の隙間部に位置するようにずらせて
明けれべ、側端板5同志の接触部分の面積は、更に小さ
くなる。
The split type heat insulating member is assembled with the side end plates 5 and the lateral end plates 6 in close contact with each other. This mutually close contact area is
The side end plates 5 and 6 come into contact at locations other than the holes drilled in the side end plates 5 and 6. Alternatively, if holes are made at certain intervals like the side end plate 5 shown in FIG. 5, the corresponding holes in the side end plate 5 should be positioned in the gaps between the holes. If the side end plates 5 are shifted apart, the area of the contact portion between the side end plates 5 becomes even smaller.

このようにして保温部材を被装した配管において(第1
図又は第2図参照)、配管1内を流れている高温のす)
 IJウムの熱は、配管1の外周面と内装板2との間の
環状隙間に滞留している空気層に伝導される。このよう
にして空気層に伝導された熱は、更に内装板2に伝導さ
れ、この熱は、側端板5と横端板6によって外装板3に
伝導される。
In the pipe covered with the heat insulating member in this way (first
(see figure or figure 2), high temperature gas flowing in pipe 1)
The heat of the IJum is conducted to the air layer retained in the annular gap between the outer peripheral surface of the pipe 1 and the interior panel 2. The heat thus conducted to the air layer is further conducted to the interior panel 2, and this heat is conducted to the exterior panel 3 by the side end plates 5 and 6.

この内装板2から外装板3への熱伝導は、これら両者を
連結している側端板5と横端板6によって行なわれ、高
温の内装板2と低温の外装板3によって大きな温度勾配
となり、熱伝導が最大部分となる。この工うに熱伝導部
が最大となる側端板5同志及び横端板6同志の密着によ
って、分割された内装板2の熱がこの密着部に集中する
Heat conduction from the interior panel 2 to the exterior panel 3 is carried out by the side end plates 5 and lateral end plates 6 that connect these two, and a large temperature gradient is created between the high-temperature interior panel 2 and the low-temperature exterior panel 3. , heat conduction becomes the largest part. In this way, due to the close contact between the side end plates 5 and the lateral end plates 6, where the heat conduction area is maximized, the heat of the divided interior board 2 is concentrated in this close contact area.

この側端板5と横端板6の接触面積を小さくして、熱伝
導効果を高め、側端板5と横端板6自体の高度勾配を太
きクシ、側端板5及び横端板6と内装板2との結合部の
温度を内装板2の温度には、ぼ等しくすると共に、側端
板5及び横端板6と外装板3との結合部の温度をほぼ外
装板3の温度にし、これら結合部の温度勾配をゆるやか
にする。
The contact area between the side end plate 5 and the lateral end plate 6 is reduced to enhance the heat conduction effect, and the height gradient of the side end plate 5 and the lateral end plate 6 itself is reduced to a thick comb. 6 and the interior plate 2 is approximately equal to the temperature of the interior plate 2, and the temperature of the joints between the side end plate 5 and the side end plate 6 and the exterior plate 3 is approximately equal to that of the exterior plate 3. temperature, and make the temperature gradient at these joints gentle.

、又側端板5と横端板6の網目部分に箔を貼設し保温材
の粉塵発生を防止する。
In addition, foil is pasted on the mesh portions of the side end plates 5 and 6 to prevent the generation of dust from the heat insulating material.

以上詳述しだ通9本発明の分割型保温部材によれば、側
端板と1A病板を網目状にし、側端板同志及び横端板同
志の接触面積を小さくしたので、側端板及び横端板と内
装板又は外装板の結合部の温度勾配をゆるやかにするこ
とができ、内装板又は外装板の極部冷却又は加熱が発生
せず、その結果配管の外周と内装板との間の生気層の温
度に影響がなく、正確な配管の温度が検出できる。
According to the split type heat retaining member of the Shidatsu 9 invention described in detail above, the side end plates and the 1A diseased plate are made into a mesh shape, and the contact area between the side end plates and the lateral end plates is reduced, so that the side end plate Also, the temperature gradient at the joint between the side end plate and the interior or exterior plate can be made gentler, and extreme cooling or heating of the interior or exterior plate does not occur, and as a result, the temperature gradient between the outer periphery of the pipe and the interior plate is reduced. There is no effect on the temperature of the living air layer between the pipes, and the temperature of the piping can be accurately detected.

又極部冷却又は加熱によって発生する熱応力によって、
配管や内外装板の亀裂や腐蝕の問題もなく、更に極部冷
却によって起るナトリウムの凝固もなくナトリウムの漏
洩検出も正確に検出することができる。
Also, due to thermal stress generated by cooling or heating the extreme parts,
There are no problems with cracks or corrosion of piping or interior/exterior plates, and there is no solidification of sodium caused by extreme cooling, so sodium leakage can be detected accurately.

又測端板及び横端板の網目部分に箔を貼設したりで、保
温材の粉塵の発生はなく、放射能廃棄物による汚架もな
く、プラントの信頼性を向上させることかできるなど顕
著な効果を貨する。
In addition, by pasting foil on the mesh parts of the measuring end plates and side end plates, there is no generation of dust from the heat insulating material, there are no dirty racks due to radioactive waste, and the reliability of the plant can be improved. It has a remarkable effect.

【図面の簡単な説明】[Brief explanation of drawings]

第1図乃至第4図は従来例であり、第1図は側端板と横
端板が平板状のものを又化3図は階段状のものを示し、
第2図は第1図の横断面図、第4図は第3図の横断面図
でるる。 第5図乃至第9図は、本発明の実施例であり、第5図は
保温部材の斜視図、第6図は、側端板及び横端板の網目
部分に箔を貼設した状態を部分的に拡大して示した図、
第7図は、三角孔の網目を又第8図は矩形状の板によっ
て、第9図は棒材によってそれぞれ網目状にした実施例
を示す図である。 1・・・配管、2・・・内装板、3・・・外装板、4・
・・保温材、5・・・側端板、6・・・横端板、14・
・・滴。
Figures 1 to 4 show conventional examples; Figure 1 shows one in which the side end plates and lateral end plates are in the form of a flat plate, and Figure 3 shows one in the form of steps.
2 is a cross-sectional view of FIG. 1, and FIG. 4 is a cross-sectional view of FIG. 3. Figures 5 to 9 show examples of the present invention, with Figure 5 being a perspective view of the heat insulating member, and Figure 6 showing the state in which foil is pasted on the side end plates and the mesh portions of the lateral end plates. Partially enlarged diagram,
FIG. 7 shows an embodiment in which the mesh of triangular holes is formed by a mesh of triangular holes, FIG. 8 by a rectangular plate, and FIG. 9 by a bar. 1... Piping, 2... Interior board, 3... Exterior board, 4...
...Heat insulation material, 5...Side end plate, 6...Horizontal end plate, 14.
··drop.

Claims (1)

【特許請求の範囲】 1、内装板と外装板及び側端板と横端板とで保温材を被
覆して成る分割型保温部材において、上記側端板と横端
板を網目状の板とし、側端板と側端板及び横端板と横端
板との間の接触面を少なくしたことを特徴とする分割型
保温部材。 2、内装板と外装板及び側端板と横端板とで保温材を被
覆して成る分割型保温部材において、上記側端板と横端
板を網目状の板とし、側端板と側端板及び横端板と横端
板との間の接触面を少なくし、側端板と横端板の網目部
に箔を貼設したことを特徴とする分割型保温部材。
[Scope of Claims] 1. In a split type heat insulating member comprising an interior plate, an exterior plate, a side end plate and a lateral end plate covered with a heat insulating material, the side end plate and the lateral end plate are mesh-like plates. , a split type heat insulating member characterized in that the contact surfaces between the side end plates and between the side end plates are reduced. 2. In a split type heat insulation member made of an interior plate, an exterior plate, a side end plate, and a side end plate covered with a heat insulating material, the side end plate and the lateral end plate are mesh-like plates, and the side end plate and the side end plate are mesh-like plates. A split type heat insulating member characterized in that the contact surface between the end plate and the lateral end plate is reduced, and foil is attached to the mesh portion of the side end plate and the lateral end plate.
JP59180552A 1984-08-31 1984-08-31 Split type heat-insulating member Pending JPS6159096A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59180552A JPS6159096A (en) 1984-08-31 1984-08-31 Split type heat-insulating member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59180552A JPS6159096A (en) 1984-08-31 1984-08-31 Split type heat-insulating member

Publications (1)

Publication Number Publication Date
JPS6159096A true JPS6159096A (en) 1986-03-26

Family

ID=16085269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59180552A Pending JPS6159096A (en) 1984-08-31 1984-08-31 Split type heat-insulating member

Country Status (1)

Country Link
JP (1) JPS6159096A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012215297A (en) * 2011-03-29 2012-11-08 Mitsubishi Materials Corp Ignition prevention structure in installation handling combustible fluid
JP5643909B1 (en) * 2014-02-21 2014-12-17 徳永産業株式会社 Thermal insulation cover and inflation molding machine.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56131459A (en) * 1980-03-15 1981-10-15 Kankyo Kaihatsu Kk System of preventing crossing accident

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56131459A (en) * 1980-03-15 1981-10-15 Kankyo Kaihatsu Kk System of preventing crossing accident

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012215297A (en) * 2011-03-29 2012-11-08 Mitsubishi Materials Corp Ignition prevention structure in installation handling combustible fluid
JP5643909B1 (en) * 2014-02-21 2014-12-17 徳永産業株式会社 Thermal insulation cover and inflation molding machine.

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