JP2016011724A - Pipeline protection device and nuclear facility - Google Patents

Pipeline protection device and nuclear facility Download PDF

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JP2016011724A
JP2016011724A JP2014134263A JP2014134263A JP2016011724A JP 2016011724 A JP2016011724 A JP 2016011724A JP 2014134263 A JP2014134263 A JP 2014134263A JP 2014134263 A JP2014134263 A JP 2014134263A JP 2016011724 A JP2016011724 A JP 2016011724A
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pipe
outer cylinder
protection device
fixed
members
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JP6501459B2 (en
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利正 永井
Toshimasa Nagai
利正 永井
鈴木　盛喜
Moriyoshi Suzuki
盛喜 鈴木
正道 小崎
Masamichi Ozaki
正道 小崎
政徳 上野
Masanori Ueno
政徳 上野
高山　義博
Yoshihiro Takayama
義博 高山
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Mitsubishi Heavy Industries Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Pipe Accessories (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)

Abstract

PROBLEM TO BE SOLVED: To suppress ejection of fluid to the surroundings of a pipeline and progression of rupture of the pipeline, in a pipeline protection device and a nuclear facility.SOLUTION: A pipeline protection device includes: an external cylinder 11 covering the outer periphery of a pipeline 106 where fluid circulates; side lid members 12, 13 forming a ring shape fixed to the end part in an axial direction of the external cylinder 11; and gap adjustment members 18, 19 provided in the side lid members 12, 13 and setting a gap amount to an outer peripheral surface of the pipeline 106 to a setting value.

Description

本発明は、例えば高温・高圧の流体を通過させる配管に破断が生じた場合に、配管の周りへの流体の噴出および配管の破断の進行を抑制する配管防護装置、および当該配管防護装置が適用される原子力設備に関する。   The present invention is applied to, for example, a pipe protection device that suppresses the flow of fluid around the pipe and the progress of the pipe breakage when the pipe through which a high-temperature and high-pressure fluid passes is broken. Related to nuclear facilities.

従来、例えば、特許文献１に記載の配管防護装置（配管ホイップおよびジェット力防止装置）は、配管の外側に適合し得る形状を持つ複数のクランプ配管部材を有し、複数のクランプ配管部材を配管の外側に接触した状態で配設し、且つ、複数のクランプ配管部材がクランプ配管を構成して配管を密接して抱え挟むように締め付けるようにしている。また、特許文献１に記載の配管防護装置は、配管の外側に係止部材が固着突出されており、且つ、少なくとも１つのクランプ配管部材に肉厚方向に貫通する貫通孔が形成され、貫通孔に係止部材を嵌入することにより、クランプ配管から配管が抜け出るのを防止するように構成されている。   Conventionally, for example, a pipe protection device (pipe whip and jet force prevention device) described in Patent Document 1 has a plurality of clamp pipe members having a shape that can be adapted to the outside of the pipe, and pipes the plurality of clamp pipe members. The clamp pipe members are arranged in contact with the outside of the pipe, and a plurality of clamp pipe members constitute the clamp pipe so that the pipes are tightly held and clamped. Further, in the pipe protection device described in Patent Document 1, a locking member is fixedly protruded on the outside of the pipe, and a through-hole penetrating in the thickness direction is formed in at least one clamp pipe member. By inserting the locking member into the pipe, the pipe is prevented from coming out of the clamp pipe.

特開昭５５−９７５９４号公報JP-A-55-97594

上述した特許文献１に記載の配管防護装置は、配管の係止部材にクランプ配管をなすクランプ配管部材の貫通孔を嵌入しているだけであり、配管が破断した場合、貫通孔からクランプ配管の外部に高温・高圧の流体が噴出することになる。このように特許文献１に記載の配管防護装置は、流体の噴出を抑制することが困難であり、この結果、噴出した流体が配管周囲の構造物を破損させる影響や、流体の蒸気により配管周囲の機器類（電気機器など）に故障を生じさせる影響を与えるため、構造物や機器類を保護することが困難となる。   The pipe protection device described in Patent Document 1 described above merely inserts a through hole of a clamp pipe member that forms a clamp pipe into a pipe locking member. High temperature and high pressure fluid will be ejected to the outside. As described above, it is difficult for the pipe protection device described in Patent Document 1 to suppress the ejection of fluid. As a result, the influence of the ejected fluid on the structure around the pipe or the surroundings of the pipe due to the vapor of the fluid. It is difficult to protect the structure and the equipment because it has the effect of causing a failure in the equipment (such as electrical equipment).

本発明は上述した課題を解決するものであり、配管の周りへの流体の噴出および配管の破断の進行を抑制することのできる配管防護装置および原子力設備を提供することを目的とする。   This invention solves the subject mentioned above, and it aims at providing the piping protection apparatus and nuclear power installation which can suppress the progress of the ejection of the fluid around piping, and the fracture | rupture of piping.

上述の目的を達成するための本発明の配管防護装置は、流体が流通する配管の外周を覆う外筒と、前記外筒における軸方向の端部に固定されるリング形状をなす側蓋部材と、前記側蓋部材に設けられて前記配管の外面との隙間量を規定値に設定する隙間調整部材と、を有することを特徴とするものである。   The pipe protection device of the present invention for achieving the above-described object includes an outer cylinder that covers an outer periphery of a pipe through which a fluid flows, and a side lid member that forms a ring shape that is fixed to an axial end of the outer cylinder. And a gap adjusting member that is provided on the side lid member and sets a gap amount with the outer surface of the pipe to a specified value.

従って、配管が破断したとき、外周が外筒により覆われていることから、破断部から噴出する流体がこの外筒により堰き止められ、配管の周囲への流体の噴出を抑制することができる。しかも、外筒は、端部が側蓋部材と隙間調整部材により配管の外面との隙間量が規定値に設定されることから、外筒の端部からの流体の漏洩を抑制することができる。その結果、配管から噴出した流体が配管の周囲の構造物や機器類に影響を与える事態を防ぎ、構造物や機器類を保護することができる。   Therefore, since the outer periphery is covered with the outer cylinder when the pipe is broken, the fluid ejected from the fractured portion is blocked by the outer cylinder, and the ejection of the fluid around the pipe can be suppressed. In addition, since the outer cylinder has a gap amount between the end portion of the outer cylinder and the outer surface of the pipe set to a specified value by the side lid member and the gap adjusting member, the leakage of fluid from the end portion of the outer cylinder can be suppressed. . As a result, it is possible to prevent the fluid ejected from the pipe from affecting the structures and equipment around the pipe and protect the structures and equipment.

本発明の配管防護装置では、前記側蓋部材及び前記隙間調整部材は、前記外筒における軸方向の一端部と他端部に固定され、前記外筒の内面における前記側蓋部材の内側に隣接して一対の係止部材が固定される一方、前記配管の外面における前記一対の係止部材の間で前記係止部材に隣接して一対の突起部が固定されることを特徴としている。   In the piping protection device of the present invention, the side lid member and the gap adjusting member are fixed to one end and the other end in the axial direction of the outer cylinder, and are adjacent to the inside of the side lid member on the inner surface of the outer cylinder. Then, while the pair of locking members is fixed, the pair of protrusions are fixed adjacent to the locking member between the pair of locking members on the outer surface of the pipe.

従って、外筒の各端部に側蓋部材と隙間調整部材と係止部材がそれぞれ固定されると共に、配管の外面における各端部に突起部がそれぞれ固定されることで、配管が破断したとき、配管の突起部が外筒の係止部材に係止され、配管が破断部を起点として離間する動作が防止され、配管における破断の進行を抑制することができる。   Therefore, when the side cover member, the gap adjusting member, and the locking member are fixed to each end of the outer cylinder, and the protrusion is fixed to each end on the outer surface of the pipe, the pipe breaks. The protruding portion of the pipe is locked to the locking member of the outer cylinder, the operation of separating the pipe from the rupture portion is prevented, and the progress of the rupture in the pipe can be suppressed.

本発明の配管防護装置では、前記外筒は、周囲に支持され、前記側蓋部材及び前記隙間調整部材は、前記外筒における軸方向の端部に固定され、前記外筒の内面における前記側蓋部材の内側に隣接して係止部材が固定される一方、前記配管の外面における前記係止部材に隣接して突起部が固定されることを特徴としている。   In the pipe protection device of the present invention, the outer cylinder is supported around, the side lid member and the gap adjusting member are fixed to an axial end of the outer cylinder, and the side of the inner surface of the outer cylinder is While the locking member is fixed adjacent to the inside of the lid member, the protrusion is fixed adjacent to the locking member on the outer surface of the pipe.

従って、外筒の端部に側蓋部材と隙間調整部材と係止部材が固定されると共に、配管の外面における端部に突起部が固定されることで、配管が破断したとき、配管の突起部が外筒の係止部材に係止され、破断した配管が離間する動作が防止され、配管における破断の進行を抑制することができる。   Accordingly, the side cover member, the gap adjusting member, and the locking member are fixed to the end portion of the outer cylinder, and the protrusion is fixed to the end portion on the outer surface of the pipe, so that when the pipe breaks, the protrusion of the pipe The part is locked to the locking member of the outer cylinder, the operation of separating the broken pipe is prevented, and the progress of the fracture in the pipe can be suppressed.

本発明の配管防護装置では、前記隙間調整部材は、前記側蓋部材における一方の端面に固定されることを特徴としている。   In the pipe protection device of the present invention, the gap adjusting member is fixed to one end face of the side lid member.

従って、隙間調整部材を側蓋部材の端面に固定することで、側蓋部材に対して隙間調整部材を容易に固定することができ、組付性を向上することができる。   Therefore, by fixing the gap adjusting member to the end surface of the side lid member, the gap adjusting member can be easily fixed to the side lid member, and the assemblability can be improved.

本発明の配管防護装置では、前記隙間調整部材は、前記側蓋部材における内面に固定されることを特徴としている。   In the pipe protection device of the present invention, the gap adjusting member is fixed to an inner surface of the side lid member.

従って、隙間調整部材を側蓋部材の内面に固定することで、隙間調整部材が側蓋部材の外方に突出することがなく、外観品質を向上することができる。   Therefore, by fixing the gap adjusting member to the inner surface of the side lid member, the gap adjusting member does not protrude outward from the side lid member, and the appearance quality can be improved.

本発明の配管防護装置では、前記隙間調整部材は、前記側蓋部材における外端面に固定され、前記配管の外面との隙間量を調整可能な調整部を有することを特徴としている。   In the piping protection device according to the present invention, the gap adjusting member includes an adjusting portion that is fixed to an outer end surface of the side lid member and that can adjust a gap amount with the outer surface of the pipe.

従って、隙間調整部材が配管の外面との隙間量を調整可能な調整部を有することで、異なる外径の配管に対して隙間調整部材の共通化が可能となり、部品コストを低減することができる。   Therefore, since the gap adjusting member has an adjusting portion that can adjust the gap amount with the outer surface of the pipe, the gap adjusting member can be made common to pipes having different outer diameters, and the part cost can be reduced. .

本発明の配管防護装置では、前記隙間調整部材と前記配管との隙間は、前記側蓋部材と前記配管との隙間より小さく設定されることを特徴としている。   In the pipe protection device of the present invention, the gap between the gap adjusting member and the pipe is set to be smaller than the gap between the side cover member and the pipe.

従って、配管の寸法に合わせて側蓋部材を高精度に設計及び製造する必要がなくなり、製造コストを低減することができ、また、隙間調整部材の内面と配管の外面との隙間を小さく設定することで、外筒の端部から外部への流体の漏洩を防止することができる。   Therefore, it is not necessary to design and manufacture the side cover member with high accuracy in accordance with the dimensions of the pipe, and the manufacturing cost can be reduced. Also, the gap between the inner surface of the gap adjusting member and the outer surface of the pipe is set small. Thus, leakage of fluid from the end of the outer cylinder to the outside can be prevented.

本発明の配管防護装置では、前記外筒と前記側蓋部材と前記隙間調整部材は、径方向に分割された複数の分割部により構成されることを特徴としている。   In the pipe protection device of the present invention, the outer cylinder, the side cover member, and the gap adjusting member are configured by a plurality of divided portions that are divided in the radial direction.

従って、外筒と側蓋部材と隙間調整部材を複数の分割部により構成することで、各分割部を配管の外側から覆うように組付けて固定することで、配管に外筒と側蓋部材と隙間調整部材を容易に組付けることができ、組付性を向上することができる。   Therefore, the outer cylinder, the side cover member, and the gap adjusting member are configured by a plurality of divided parts, and the divided parts are assembled and fixed so as to cover the outside of the pipe, so that the outer cylinder and the side cover member are fixed to the pipe. And the gap adjusting member can be easily assembled, and the assembling property can be improved.

本発明の配管防護装置では、前記配管は、外面が固定部材を介して周囲に支持され、前記外筒は、前記固定部材が挿通される開口部が設けられ、前記開口部の開口縁が前記固定部材に接続されることを特徴としている。   In the pipe protection device of the present invention, the pipe has an outer surface supported around the fixing member through the fixing member, the outer cylinder is provided with an opening through which the fixing member is inserted, and an opening edge of the opening has the opening It is characterized by being connected to a fixing member.

従って、固定部材により固定されている配管にて、この配管と固定部材との接続を保証しつつ、固定部材の一部を利用して外筒を固定するため、配管が破断したとき、外筒により配管の破断部から噴出する流体を堰き止めることから、配管の周囲への流体の噴出を抑制することができる。   Therefore, in the pipe fixed by the fixing member, the outer cylinder is fixed by using a part of the fixing member while ensuring the connection between the pipe and the fixing member. Since the fluid ejected from the broken part of the pipe is blocked by the above, the ejection of the fluid around the pipe can be suppressed.

本発明の配管防護装置では、前記配管は、軸方向における一端部が周囲の支持部材に支持され、前記外筒は、一端部が前記支持部材に固定され、他端部に前記係止部材が固定されることを特徴としている。   In the pipe protection device of the present invention, the pipe has one end in the axial direction supported by a surrounding support member, the outer cylinder has one end fixed to the support member, and the other end has the locking member. It is characterized by being fixed.

従って、一端部が支持部材により支持されている配管にて、配管が破断したとき、外筒により配管の破断部から噴出する流体を堰き止めることができると共に、配管の突起部が外筒の係止部材に係止され、破断した配管の他端部側へ移動する動作を防止することができ、配管の周囲への流体の噴出を抑制することができる。   Therefore, when the pipe breaks in the pipe whose one end is supported by the support member, the fluid ejected from the broken part of the pipe can be dammed by the outer cylinder, and the protruding part of the pipe is engaged with the outer cylinder. The movement to the other end side of the broken pipe, which is locked by the stop member, can be prevented, and the ejection of fluid around the pipe can be suppressed.

また、本発明の原子力設備は、原子炉で生成された熱により高温・高圧の流体を発生させて配管で送り、前記流体を利用する原子力設備であって、前記配管に前記配管防護装置が適用される、ことを特徴とするものである。   Further, the nuclear power facility according to the present invention is a nuclear power facility that generates a high-temperature / high-pressure fluid by heat generated in a nuclear reactor and sends the fluid through piping, and the piping protection device is applied to the piping. It is characterized by that.

従って、配管防護装置により、配管から噴出した流体が配管の周囲の構造物や機器類に影響を与える事態を防ぎ、構造物や機器類を保護することができる。   Therefore, the pipe protective device can prevent the fluid ejected from the pipe from affecting the structures and equipment around the pipe and protect the structures and equipment.

本発明の配管防護装置および原子力設備によれば、配管の外周を覆う外筒を設け、この外筒の端部に側蓋部材を固定すると共に、配管の外面との隙間量を規定値に設定する隙間調整部材を設けるので、配管が破断したとき、破断部から周囲への流体の噴出を抑制することができると共に、外筒の端部からの流体の漏洩を抑制することができ、その結果、配管から噴出した流体が配管の周囲の構造物や機器類に影響を与える事態を防ぎ、構造物や機器類を保護することができる。   According to the pipe protection device and the nuclear power facility of the present invention, an outer cylinder that covers the outer periphery of the pipe is provided, a side cover member is fixed to an end of the outer cylinder, and a gap amount between the outer surface of the pipe is set to a specified value. Since the gap adjusting member is provided, when the pipe breaks, it is possible to suppress the ejection of fluid from the fractured portion to the surroundings, and to suppress the leakage of fluid from the end portion of the outer cylinder, and as a result It is possible to prevent the situation in which the fluid ejected from the piping affects the structures and devices around the piping and protect the structures and devices.

図１は、第１実施形態の原子力設備を表す概略構成図である。FIG. 1 is a schematic configuration diagram illustrating a nuclear facility according to the first embodiment. 図２は、第１実施形態の配管防護装置を表す一部切欠正面図である。FIG. 2 is a partially cutaway front view showing the pipe protection device of the first embodiment. 図３は、配管防護装置を表す斜視図である。FIG. 3 is a perspective view showing the pipe protection device. 図４は、配管防護装置における配管延在方向の断面図である。FIG. 4 is a cross-sectional view in the pipe extending direction in the pipe protection device. 図５は、配管防護装置を表す側面図である。FIG. 5 is a side view showing the pipe protection device. 図６は、図４のVI−VI断面図である。6 is a cross-sectional view taken along the line VI-VI in FIG. 図７は、図４のVII−VII断面図である。7 is a sectional view taken along line VII-VII in FIG. 図８は、配管防護装置における要部断面図である。FIG. 8 is a cross-sectional view of a main part in the pipe protection device. 図９は、第２実施形態の配管防護装置を表す断面図である。FIG. 9 is a cross-sectional view illustrating the pipe protection device of the second embodiment. 図１０は、第３実施形態の配管防護装置を表す断面図である。FIG. 10 is a cross-sectional view illustrating a pipe protection device according to the third embodiment. 図１１は、第４実施形態の配管防護装置を表す断面図である。FIG. 11 is a cross-sectional view illustrating the piping protection device of the fourth embodiment.

以下に、本発明に係る配管防護装置および原子力設備の実施形態を図面に基づいて詳細に説明する。なお、この実施形態によりこの発明が限定されるものではない。また、下記実施形態における構成要素には、当業者が置換可能かつ容易なもの、あるいは実質的に同一のものが含まれる。   Embodiments of a pipe protection device and a nuclear facility according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same.

［第１実施形態］
図１は、第１実施形態の原子力設備を表す概略構成図である。図１に示す原子力設備は、加圧水型原子炉（ＰＷＲ：Pressurized Water Reactor）である。この原子力設備は、原子炉格納容器１００内において、原子炉圧力容器１０１、加圧器１０２、蒸気発生器１０３および一次冷却水ポンプ１０４が、一次冷却水管１０５により順次接続されて、流体である一次冷却水の循環経路が構成されている。 [First Embodiment]
FIG. 1 is a schematic configuration diagram illustrating a nuclear facility according to the first embodiment. The nuclear facility shown in FIG. 1 is a pressurized water reactor (PWR). In this nuclear power facility, a reactor pressure vessel 101, a pressurizer 102, a steam generator 103, and a primary cooling water pump 104 are sequentially connected by a primary cooling water pipe 105 in a reactor containment vessel 100, and primary cooling that is a fluid is performed. A water circulation path is constructed.

原子炉圧力容器１０１は、内部に炉心である複数の燃料集合体１０１ａを密閉状態で格納するもので、燃料集合体１０１ａが挿抜できるように、容器本体１０１ｂとその上部に装着される容器蓋１０１ｃとにより構成されている。容器蓋１０１ｃは、容器本体１０１ｂに対して開閉可能に設けられている。容器本体１０１ｂは、上方が開口し、下方が半球形状とされて閉塞された円筒形状をなし、上部に、一次冷却水としての軽水を給排する入口側管台１０１ｄおよび出口側管台１０１ｅが設けられている。出口側管台１０１ｅは、蒸気発生器１０３の入口側水室１０３ａに連通するように一次冷却水管１０５が接続されている。また、入口側管台１０１ｄは、蒸気発生器１０３の出口側水室１０３ｂに連通するように一次冷却水管１０５が接続されている。   The reactor pressure vessel 101 stores therein a plurality of fuel assemblies 101a, which are cores, in a sealed state, and a vessel body 101b and a vessel lid 101c mounted on the upper portion thereof so that the fuel assemblies 101a can be inserted and removed. It is comprised by. The container lid 101c is provided so as to be openable and closable with respect to the container main body 101b. The container body 101b has a cylindrical shape with an upper opening and a lower hemisphere that is closed, and an inlet-side nozzle 101d and an outlet-side nozzle 101e that supply and discharge light water as primary cooling water at the upper part. Is provided. The outlet side nozzle 101e is connected to the primary cooling water pipe 105 so as to communicate with the inlet side water chamber 103a of the steam generator 103. The inlet side nozzle 101d is connected to the primary cooling water pipe 105 so as to communicate with the outlet side water chamber 103b of the steam generator 103.

蒸気発生器１０３は、半球形状に形成された下部において、入口側水室１０３ａと出口側水室１０３ｂとが仕切板１０３ｃによって区画されて設けられている。入口側水室１０３ａおよび出口側水室１０３ｂは、その天井部に設けられた管板１０３ｄによって蒸気発生器１０３の上部側と区画されている。蒸気発生器１０３の上部側には、逆Ｕ字形状の伝熱管１０３ｅが設けられている。伝熱管１０３ｅは、入口側水室１０３ａと出口側水室１０３ｂとを繋ぐように各端部が管板１０３ｄに支持されている。そして、入口側水室１０３ａは、入口側の一次冷却水管１０５が接続され、出口側水室１０３ｂは、出口側の一次冷却水管１０５が接続されている。また、蒸気発生器１０３は、管板１０３ｄによって区画された上部側の上端に、出口側の二次冷却水管１０６ａが接続され、上部側の側部に、入口側の二次冷却水管１０６ｂが接続されている。   The steam generator 103 is provided with an inlet-side water chamber 103a and an outlet-side water chamber 103b partitioned by a partition plate 103c in a lower part formed in a hemispherical shape. The inlet side water chamber 103a and the outlet side water chamber 103b are separated from the upper side of the steam generator 103 by a tube plate 103d provided on the ceiling portion. On the upper side of the steam generator 103, an inverted U-shaped heat transfer tube 103e is provided. Each end of the heat transfer tube 103e is supported by the tube plate 103d so as to connect the inlet side water chamber 103a and the outlet side water chamber 103b. The inlet-side water chamber 103a is connected to the inlet-side primary cooling water pipe 105, and the outlet-side water chamber 103b is connected to the outlet-side primary cooling water pipe 105. In addition, the steam generator 103 is connected to the upper side upper end partitioned by the tube plate 103d, the outlet side secondary cooling water pipe 106a, and the upper side part is connected to the inlet side secondary cooling water pipe 106b. Has been.

また、原子力設備は、蒸気発生器１０３が、原子炉格納容器１００外で二次冷却水管１０６ａ，１０６ｂを介して蒸気タービン１０７に接続されて、流体である二次冷却水の循環経路が構成されている。   Further, in the nuclear power facility, the steam generator 103 is connected to the steam turbine 107 via the secondary cooling water pipes 106a and 106b outside the reactor containment vessel 100, so that a circulation path of secondary cooling water that is a fluid is configured. ing.

蒸気タービン１０７は、高圧タービン１０８および低圧タービン１０９を有すると共に、発電機１１０が接続されている。また、高圧タービン１０８および低圧タービン１０９は、湿分分離加熱器１１１が、二次冷却水管１０６ａから分岐して接続されている。二次冷却水管１０６ａは、蒸気発生器１０３から高圧タービン１０８および低圧タービン１０９に至る途中に蒸気隔離弁（開閉弁）１１９が設けられている。蒸気隔離弁１１９は、非常時などに閉塞されて蒸気発生器１０３から高圧タービン１０８および低圧タービン１０９に至る蒸気が隔離される。また、低圧タービン１０９は、復水器１１２に接続されている。この復水器１１２は、二次冷却水管１０６ｂに接続されている。二次冷却水管１０６ｂは、上述したように蒸気発生器１０３に接続され、復水器１１２から蒸気発生器１０３に至り、復水ポンプ１１３、低圧給水加熱器１１４、脱気器１１５、主給水ポンプ１１６、高圧給水加熱器１１７および主給水弁（開閉弁）１１８が設けられている。   The steam turbine 107 includes a high-pressure turbine 108 and a low-pressure turbine 109, and a generator 110 is connected thereto. In addition, the high-pressure turbine 108 and the low-pressure turbine 109 are connected to a moisture separation heater 111 that is branched from the secondary cooling water pipe 106a. The secondary cooling water pipe 106 a is provided with a steam isolation valve (open / close valve) 119 on the way from the steam generator 103 to the high pressure turbine 108 and the low pressure turbine 109. The steam isolation valve 119 is closed in an emergency or the like, and the steam from the steam generator 103 to the high pressure turbine 108 and the low pressure turbine 109 is isolated. The low pressure turbine 109 is connected to the condenser 112. The condenser 112 is connected to the secondary cooling water pipe 106b. The secondary cooling water pipe 106b is connected to the steam generator 103 as described above, and reaches from the condenser 112 to the steam generator 103, and the condensate pump 113, the low-pressure feed water heater 114, the deaerator 115, and the main feed water pump. 116, a high-pressure feed water heater 117 and a main feed water valve (open / close valve) 118 are provided.

従って、原子力設備では、一次冷却水が原子炉圧力容器１０１にて加熱されて高温・高圧となり、加圧器１０２にて加圧されて圧力が一定に維持されつつ、一次冷却水管１０５を介して蒸気発生器１０３に供給される。蒸気発生器１０３では、一次冷却水と二次冷却水との熱交換が行われることにより、二次冷却水が蒸発して蒸気となる。熱交換後の冷却した一次冷却水は、一次冷却水管１０５を介して一次冷却水ポンプ１０４側に回収され、原子炉圧力容器１０１に戻される。一方、熱交換により蒸気となった二次冷却水は、蒸気タービン１０７に供給される。蒸気タービン１０７に係り、湿分分離加熱器１１１は、高圧タービン１０８からの排気から湿分を除去し、さらに加熱して過熱状態とした後に低圧タービン１０９に送る。蒸気タービン１０７は、二次冷却水の蒸気により駆動され、その動力が発電機１１０に伝達されて発電される。タービンの駆動に供された蒸気は、復水器１１２に排出される。復水器１１２は、取水管１１２ａを介してポンプ１１２ｂにより取水した冷却水（例えば、海水）と、低圧タービン１０９から排出された蒸気とを熱交換し、当該蒸気を凝縮させて低圧の飽和液に戻す。熱交換に用いられた冷却水は、排水管１１２ｃから排出される。また、凝縮された飽和液は、二次冷却水となり、復水ポンプ１１３によって二次冷却水管１０６ｂを介して復水器１１２の外部に送り出される。さらに、二次冷却水管１０６ｂを経る二次冷却水は、低圧給水加熱器１１４で、例えば、低圧タービン１０９から抽気した低圧蒸気により加熱され、脱気器１１５で溶存酸素や不凝結ガス（アンモニアガス）などの不純物が除去された後、主給水ポンプ１１６により送水され、高圧給水加熱器１１７で、例えば、高圧タービン１０８から抽気した高圧蒸気により加熱された後、蒸気発生器１０３に戻される。ここで、二次冷却水を蒸気発生器１０３に給水する系統を主給水系という。主給水系は、蒸気発生器１０３の二次冷却水の水位を維持するため、主給水ポンプ１１６や主給水弁１１８などが制御される。   Therefore, in the nuclear power facility, the primary cooling water is heated in the reactor pressure vessel 101 to become high temperature and high pressure, and is pressurized by the pressurizer 102 to maintain the pressure constant, while the steam is passed through the primary cooling water pipe 105. It is supplied to the generator 103. In the steam generator 103, heat exchange between the primary cooling water and the secondary cooling water is performed, whereby the secondary cooling water evaporates and becomes steam. The cooled primary cooling water after heat exchange is recovered to the primary cooling water pump 104 side via the primary cooling water pipe 105 and returned to the reactor pressure vessel 101. On the other hand, the secondary cooling water converted into steam by heat exchange is supplied to the steam turbine 107. In connection with the steam turbine 107, the moisture separator / heater 111 removes moisture from the exhaust from the high-pressure turbine 108, further heats it to an overheated state, and then sends it to the low-pressure turbine 109. The steam turbine 107 is driven by the steam of the secondary cooling water, and the power is transmitted to the generator 110 to generate power. Steam used for driving the turbine is discharged to the condenser 112. The condenser 112 exchanges heat between the cooling water (for example, seawater) taken by the pump 112b through the intake pipe 112a and the steam discharged from the low-pressure turbine 109, and condenses the steam to produce a low-pressure saturated liquid. Return to. The cooling water used for heat exchange is discharged from the drain pipe 112c. Further, the condensed saturated liquid becomes secondary cooling water, and is sent out of the condenser 112 by the condensate pump 113 through the secondary cooling water pipe 106b. Further, the secondary cooling water passing through the secondary cooling water pipe 106b is heated by the low-pressure feed water heater 114, for example, by the low-pressure steam extracted from the low-pressure turbine 109, and dissolved oxygen and non-condensed gas (ammonia gas) in the deaerator 115. After the impurities such as) are removed, the water is fed by the main feed pump 116 and heated by the high-pressure steam extracted from the high-pressure turbine 108 by the high-pressure feed water heater 117 and then returned to the steam generator 103. Here, a system for supplying secondary cooling water to the steam generator 103 is referred to as a main water supply system. In the main water supply system, the main water supply pump 116, the main water supply valve 118, and the like are controlled in order to maintain the water level of the secondary cooling water of the steam generator 103.

図２は、第１実施形態の配管防護装置を表す一部切欠正面図、図３は、配管防護装置を表す斜視図、図４は、配管防護装置における配管延在方向の断面図、図５は、配管防護装置を表す側面図、図６は、図４のVI−VI断面図、図７は、図４のVII−VII断面図、図８は、配管防護装置における要部断面図である。   2 is a partially cutaway front view showing the pipe protection device of the first embodiment, FIG. 3 is a perspective view showing the pipe protection device, FIG. 4 is a cross-sectional view in the pipe extending direction in the pipe protection device, and FIG. FIG. 6 is a sectional view taken along line VI-VI in FIG. 4, FIG. 7 is a sectional view taken along line VII-VII in FIG. 4, and FIG. .

本実施形態の配管防護装置１０は、上述したような原子力設備に適用される。例えば、配管防護装置１０は、原子力設備において、流体である二次冷却水が流通される配管としての二次冷却水管１０６ａ，１０６ｂに配置される。具体的に、二次冷却水管１０６ａにおいて、配管防護装置１０は、原子炉格納容器１００の隔壁１００ａの外側に引き出された直後の部分、または機器（蒸気発生器１０３，高圧タービン１０８，低圧タービン１０９，湿分分離加熱器１１１，蒸気隔離弁１１９）との溶接接続部分に配置される。また、二次冷却水管１０６ｂにおいて、配管防護装置１０は、原子炉格納容器１００の隔壁１００ａの外側に引き出された直後の部分、または機器（蒸気発生器１０３，復水器１１２，復水ポンプ１１３，低圧給水加熱器１１４，脱気器１１５，主給水ポンプ１１６，高圧給水加熱器１１７，主給水弁１１８）との溶接接続部分に配置される。なお、配管防護装置１０は、原子力設備において、流体である一次冷却水が流通される配管としての一次冷却水管１０５における各溶接接続部分に配置されてもよい。また、本実施形態に係る配管防護装置１０は、原子力設備に限らず、高温・高圧の流体が流通される配管に適用されるものである。また、流体とは、高温水などの液体や、蒸気などの気体を含む。   The pipe protection device 10 of the present embodiment is applied to the nuclear facility as described above. For example, the pipe protection device 10 is disposed in the secondary cooling water pipes 106a and 106b as pipes through which the secondary cooling water that is a fluid is circulated in a nuclear facility. Specifically, in the secondary cooling water pipe 106a, the pipe protection device 10 includes a part immediately after being pulled out of the partition wall 100a of the reactor containment vessel 100 or equipment (steam generator 103, high pressure turbine 108, low pressure turbine 109). , Moisture separation heater 111 and steam isolation valve 119). Further, in the secondary cooling water pipe 106b, the pipe protection device 10 is a part immediately after being pulled out to the outside of the partition wall 100a of the reactor containment vessel 100 or equipment (steam generator 103, condenser 112, condensate pump 113). , The low pressure feed water heater 114, the deaerator 115, the main feed water pump 116, the high pressure feed water heater 117, and the main feed valve 118). Note that the pipe protection device 10 may be disposed at each weld connection portion in the primary cooling water pipe 105 as a pipe through which the primary cooling water that is a fluid is circulated in a nuclear facility. Moreover, the pipe protection device 10 according to the present embodiment is not limited to nuclear facilities, but is applied to pipes through which high-temperature and high-pressure fluid flows. The fluid includes liquid such as high temperature water and gas such as steam.

第１実施形態において、図２から図７に示すように、配管防護装置１０は、断面が円形状をなす配管１０６の外側に設けられるものであり、外筒１１と、一対の側蓋部材１２，１３と、一対の受圧部材（係止部材）１４，１５と、一対の突起部１６，１７と、一対の隙間調整部材１８，１９とを有している。   In the first embodiment, as shown in FIGS. 2 to 7, the pipe protection device 10 is provided outside the pipe 106 having a circular cross section, and includes an outer cylinder 11 and a pair of side cover members 12. , 13, a pair of pressure receiving members (locking members) 14, 15, a pair of protrusions 16, 17, and a pair of gap adjusting members 18, 19.

外筒１１は、上述した二次冷却水管１０６ａ，１０６ｂや一次冷却水管１０５などのように流体が流通される配管１０６に対してその外側に設けられる。外筒１１は、配管１０６の上述したような所定部位の外周を覆うものであり、配管１０６の延在方向（軸方向）に沿って筒状に形成されている。そのため、外筒１１は、断面が円形状をなし、内径が配管１０６の外径より所定量大きく設定されている。   The outer cylinder 11 is provided outside the pipe 106 through which a fluid flows, such as the secondary cooling water pipes 106a and 106b and the primary cooling water pipe 105 described above. The outer cylinder 11 covers the outer periphery of the predetermined portion of the pipe 106 as described above, and is formed in a cylindrical shape along the extending direction (axial direction) of the pipe 106. Therefore, the outer cylinder 11 has a circular cross section, and the inner diameter is set larger than the outer diameter of the pipe 106 by a predetermined amount.

この外筒１１は、既設の配管１０６の外周側に後から取付ける必要から、径方向に分割された複数（本実施形態では、２個）の分割外筒１１ａにより構成されている。外筒１１は、各分割外筒１１ａが配管１０６の外周を覆うように配置され、この各分割外筒１１ａを突き合わせた部分が溶接されることで両者が結合され、配管１０６の外側に取付けられる。そのため、配管１０６の外側に外筒１１が組付けられたとき、配管１０６の外周面と外筒１１の内周面との間に空間部Ｓが確保される。なお、この外筒１１は、剛性を維持することのできるような材料、例えば、炭素鋼により形成されている。   The outer cylinder 11 is constituted by a plurality of (two in the present embodiment) divided outer cylinders 11a divided in the radial direction because it is necessary to attach the outer cylinder 11 to the outer peripheral side of the existing pipe 106 later. The outer cylinder 11 is arranged so that each divided outer cylinder 11 a covers the outer periphery of the pipe 106, and a portion where the respective divided outer cylinders 11 a are abutted is welded to each other so as to be attached to the outside of the pipe 106. . Therefore, when the outer cylinder 11 is assembled outside the pipe 106, the space S is secured between the outer peripheral surface of the pipe 106 and the inner peripheral surface of the outer cylinder 11. The outer cylinder 11 is made of a material capable of maintaining rigidity, for example, carbon steel.

側蓋部材１２，１３は、外筒１１における延在方向の一端部及び他端部に取付けられるものであり、環状をなす形状に形成されている。そのため、側蓋部材１２，１３は、外径が外筒１１の外径とほぼ同じに設定され、内径が配管１０６の外径より若干大きく設定されている。   The side lid members 12 and 13 are attached to one end and the other end of the outer cylinder 11 in the extending direction, and are formed in an annular shape. Therefore, the side cover members 12 and 13 have an outer diameter that is set to be substantially the same as the outer diameter of the outer cylinder 11, and an inner diameter that is set slightly larger than the outer diameter of the pipe 106.

外筒１１の一端部に配置される第１側蓋部材１２は、既設の配管１０６の外周側に後から取付ける必要から、径方向に分割された複数（本実施形態では、２個）の分割側蓋部材（分割部）１２ａにより構成されている。第１側蓋部材１２は、各分割側蓋部材１２ａが配管１０６の外周を覆うように配置され、この各分割側蓋部材１２ａを突き合わせた部分が溶接されることで両者が結合され、配管１０６の外側に取付けられる。また、第１側蓋部材１２は、一方の面が外筒１１の一端面に接触し、溶接により固定されている。   Since the first side lid member 12 arranged at one end of the outer cylinder 11 needs to be attached to the outer peripheral side of the existing pipe 106 later, it is divided into a plurality of (two in this embodiment) divided in the radial direction. It is comprised by the side cover member (split part) 12a. The first side lid member 12 is arranged so that each divided side lid member 12a covers the outer periphery of the pipe 106, and the portions where the respective divided side lid members 12a are abutted are welded to each other. Installed on the outside. The first side cover member 12 has one surface in contact with one end surface of the outer cylinder 11 and is fixed by welding.

外筒１１の他端部に配置される第２側蓋部材１３は、第１側蓋部材１２と同様に、既設の配管１０６の外周側に後から取付ける必要から、径方向に分割された複数（本実施形態では、２個）の分割側蓋部材１３ａにより構成されている。第２側蓋部材１３は、各分割側蓋部材１３ａが配管１０６の外周を覆うように配置され、この各分割側蓋部材１３ａを突き合わせた部分が溶接されることで両者が結合され、配管１０６の外側に取付けられる。また、第２側蓋部材１３は、一方の面が外筒１１の他端面に接触し、溶接により固定されている。   Like the first side cover member 12, the second side cover member 13 disposed at the other end of the outer cylinder 11 needs to be attached to the outer peripheral side of the existing pipe 106 later, so that a plurality of parts divided in the radial direction are provided. It is comprised by the division | segmentation side cover member 13a (in this embodiment, two pieces). The second side lid member 13 is arranged so that each divided side lid member 13 a covers the outer periphery of the pipe 106, and the parts where the respective divided side lid members 13 a are abutted are welded together so that the pipe 106 Installed on the outside. Further, the second side cover member 13 has one surface in contact with the other end surface of the outer cylinder 11 and is fixed by welding.

そのため、図８に詳細に示すように、配管１０６の外側に側蓋部材１２，１３が組付けられ、外筒１１に固定されたとき、配管１０６の外周面と側蓋部材１２，１３の内周面との間に隙間Ｇ１，Ｇ２が確保される。なお、各側蓋部材１２，１３は、剛性を維持することのできる材料、例えば、炭素鋼により形成されている。   Therefore, as shown in detail in FIG. 8, when the side cover members 12 and 13 are assembled outside the pipe 106 and fixed to the outer cylinder 11, the outer peripheral surface of the pipe 106 and the inner side of the side cover members 12 and 13. Gap G1, G2 is ensured between the peripheral surface. In addition, each side cover member 12 and 13 is formed with the material which can maintain rigidity, for example, carbon steel.

なお、外筒１１と各側蓋部材１２，１３は、配管１０６に対して個別に組付けてから両者を溶接により接合してもよいし、事前に溶接により接合してから配管１０６に対して組付けてもよい。   The outer cylinder 11 and the side lid members 12 and 13 may be individually assembled to the pipe 106 and then joined together by welding. Alternatively, the outer cylinder 11 and the side lid members 12 and 13 may be joined to each other by welding in advance. It may be assembled.

受圧部材１４，１５は、外筒１１における延在方向の一端部及び他端部に取付けられるものであり、環状に近い形状に形成されている。そのため、受圧部材１４，１５は、外径が外筒１１の内径とほぼ同じに設定され、内径が配管１０６の外径より若干大きく設定されている。そして、受圧部材１４，１５は、外筒１１の内周面と側蓋部材１２，１３の一方の面に固定されている。   The pressure receiving members 14 and 15 are attached to one end and the other end of the outer cylinder 11 in the extending direction, and are formed in a shape close to an annular shape. Therefore, the pressure receiving members 14 and 15 are set to have an outer diameter that is substantially the same as the inner diameter of the outer cylinder 11, and the inner diameter is set slightly larger than the outer diameter of the pipe 106. The pressure receiving members 14 and 15 are fixed to the inner peripheral surface of the outer cylinder 11 and one surface of the side lid members 12 and 13.

外筒１１の一端部で第１側蓋部材１２に接して配置される第１受圧部材１４は、既設の配管１０６の外周側に後から取付ける必要から、周方向に分割された複数（本実施形態では、２個）の分割受圧部材（分割部）１４ａにより構成されている。分割受圧部材１４ａは、同形状をなし、外筒１１の半周よりも短い長さに設定されている。第１受圧部材１４は、各分割受圧部材１４ａの外周面が外筒１１における各分割外筒１１ａの内周面に接触し、各分割受圧部材１４ａの一方の面が第１側蓋部材１２における各分割側蓋部材１２ａの一方の面に接触している。この場合、各分割受圧部材１４ａは、外筒１１の半周よりも短い長さであることから、外筒１１の内周面における上部と下部が連結されていない。そして、各分割受圧部材１４ａは、外筒１１に溶接により固定されると共に、第１側蓋部材１２に溶接により固定されている。第１受圧部材１４は、各分割受圧部材１４ａが配管１０６の外周を覆うように配置される。   The first pressure receiving member 14 disposed in contact with the first side cover member 12 at one end of the outer cylinder 11 needs to be attached to the outer peripheral side of the existing pipe 106 later, so that a plurality of (this embodiment) divided in the circumferential direction are used. In the embodiment, it is constituted by two divided pressure receiving members (divided portions) 14a. The divided pressure receiving member 14 a has the same shape and is set to a length shorter than the half circumference of the outer cylinder 11. As for the 1st pressure receiving member 14, the outer peripheral surface of each division | segmentation pressure receiving member 14a contacts the inner peripheral surface of each division | segmentation outer cylinder 11a in the outer cylinder 11, and one surface of each division | segmentation pressure reception member 14a is in the 1st side cover member 12. It is in contact with one surface of each divided-side lid member 12a. In this case, each divided pressure receiving member 14 a has a length shorter than the half circumference of the outer cylinder 11, so that the upper part and the lower part on the inner circumferential surface of the outer cylinder 11 are not connected. Each divided pressure receiving member 14a is fixed to the outer cylinder 11 by welding and is fixed to the first side lid member 12 by welding. The first pressure receiving member 14 is disposed so that each divided pressure receiving member 14 a covers the outer periphery of the pipe 106.

外筒１１の他端部で第２側蓋部材１３に接して配置される第２受圧部材１５は、第１受圧部材１４と同様に、既設の配管１０６の外周側に後から取付ける必要から、径方向に分割された複数（本実施形態では、２個）の分割受圧部材（分割部）１５ａにより構成されている。分割受圧部材１５ａは、同形状をなし、外筒１１の半周よりも短い長さに設定されている。第２受圧部材１５は、各分割受圧部材１５ａの外周面が外筒１１における各分割外筒１１ａの内周面に接触し、各分割受圧部材１５ａの一方の面が第２側蓋部材１３における各分割側蓋部材１３ａの一方の面に接触している。この場合、各分割受圧部材１５ａは、外筒１１の半周よりも短い長さであることから、外筒１１の内周面における上部と下部が連結されていない。そして、各分割受圧部材１５ａは、外筒１１に溶接により固定されると共に、第２側蓋部材１３に溶接により固定されている。第２受圧部材１５は、各分割受圧部材１５ａが配管１０６の外周を覆うように配置される。   The second pressure receiving member 15 disposed in contact with the second side lid member 13 at the other end of the outer cylinder 11 needs to be attached to the outer peripheral side of the existing pipe 106 later, like the first pressure receiving member 14. A plurality of (two in this embodiment) divided pressure receiving members (divided portions) 15a divided in the radial direction are configured. The divided pressure receiving member 15 a has the same shape and is set to a length shorter than the half circumference of the outer cylinder 11. In the second pressure receiving member 15, the outer peripheral surface of each divided pressure receiving member 15 a is in contact with the inner peripheral surface of each divided outer cylinder 11 a in the outer cylinder 11, and one surface of each divided pressure receiving member 15 a is in the second side lid member 13. It is in contact with one surface of each divided-side lid member 13a. In this case, since each divided pressure receiving member 15 a has a length shorter than the half circumference of the outer cylinder 11, the upper part and the lower part on the inner peripheral surface of the outer cylinder 11 are not connected. Each divided pressure receiving member 15 a is fixed to the outer cylinder 11 by welding and is fixed to the second side lid member 13 by welding. The second pressure receiving member 15 is disposed so that each divided pressure receiving member 15 a covers the outer periphery of the pipe 106.

そのため、図８に詳細に示すように、配管１０６の外側に外筒１１及び側蓋部材１２，１３と共に受圧部材１４，１５が組付けられたとき、配管１０６の外周面と受圧部材１４，１５の内周面との間に隙間Ｇ３，Ｇ４が確保される。この隙間Ｇ３，Ｇ４は、隙間Ｇ１，Ｇ２より大きく設定されている。なお、各受圧部材１４，１５は、剛性を維持することのできる材料、例えば、炭素鋼により形成されている。   Therefore, as shown in detail in FIG. 8, when the pressure receiving members 14 and 15 are assembled together with the outer cylinder 11 and the side cover members 12 and 13 on the outside of the pipe 106, the outer peripheral surface of the pipe 106 and the pressure receiving members 14 and 15 are assembled. Gap G3, G4 is ensured between the inner peripheral surface of each of the two. The gaps G3 and G4 are set larger than the gaps G1 and G2. The pressure receiving members 14 and 15 are made of a material capable of maintaining rigidity, for example, carbon steel.

突起部１６，１７は、配管１０６の外周面に固定され、配管１０６の外周面から径方向の外側に突出するものであり、環状に近い形状に形成されている。突起部１６，１７は、外筒１１により覆われる配管１０６の所定部位における軸方向の各端部に固定されている。具体的に、突起部１６，１７は、配管１０６の外周面における一対の受圧部材１４，１５の間であって、この受圧部材１４，１５に隣接して配置されている。そのため、突起部１６，１７は、内径が配管１０６の外径とほぼ同じに設定され、外径が外筒１１の内径より若干小さく設定されている。   The protrusions 16 and 17 are fixed to the outer peripheral surface of the pipe 106, protrude outward in the radial direction from the outer peripheral surface of the pipe 106, and are formed in a shape close to an annular shape. The protrusions 16 and 17 are fixed to respective end portions in the axial direction at predetermined portions of the pipe 106 covered with the outer cylinder 11. Specifically, the protrusions 16 and 17 are disposed between the pair of pressure receiving members 14 and 15 on the outer peripheral surface of the pipe 106 and adjacent to the pressure receiving members 14 and 15. Therefore, the protrusions 16 and 17 have an inner diameter set to be substantially the same as the outer diameter of the pipe 106, and the outer diameter is set slightly smaller than the inner diameter of the outer cylinder 11.

配管１０６における外筒１１の第１受圧部材１４側に配置される第１突起部１６は、既設の配管１０６の外周側に後から取付ける必要から、径方向に分割された複数（本実施形態では、２個）の分割突起部（分割部）１６ａにより構成されている。分割突起部１６ａは、同形状をなし、配管１０６の半周よりも短い長さに設定されている。第１突起部１６は、各分割突起部１６ａが配管１０６の外周に接触するように配置され、溶接により結合される。この場合、各分割突起部１６ａは、配管１０６の半周よりも短い長さであることから、配管１０６の外周面における左右の側部が連結されていない。配管１０６における外筒１１の第２受圧部材１５側に配置される第２突起部１７は、第１突起部１６と同様に、既設の配管１０６の外周側に後から取付ける必要から、径方向に分割された複数（本実施形態では、２個）の分割突起部（分割部）１７ａにより構成されている。分割突起部１７ａは、同形状をなし、配管１０６の半周よりも短い長さに設定されている。第２突起部１７は、各分割突起部１７ａが配管１０６の外周に接触するように配置され、溶接により結合される。この場合、各分割突起部１７ａは、配管１０６の半周よりも短い長さであることから、配管１０６の外周面における左右の側部が連結されていない。   The first protrusions 16 arranged on the first pressure receiving member 14 side of the outer cylinder 11 in the pipe 106 need to be attached later to the outer peripheral side of the existing pipe 106, so that a plurality of (in this embodiment, divided in the radial direction) 2) divided projections (divided parts) 16a. The division | segmentation protrusion part 16a comprises the same shape, and is set to the length shorter than the half periphery of the piping 106. FIG. The first protrusions 16 are arranged such that the respective divided protrusions 16a are in contact with the outer periphery of the pipe 106, and are joined by welding. In this case, since each divided projection 16a has a length shorter than the half circumference of the pipe 106, the left and right side parts on the outer peripheral surface of the pipe 106 are not connected. The second protrusion 17 disposed on the second pressure receiving member 15 side of the outer cylinder 11 in the pipe 106 needs to be attached to the outer peripheral side of the existing pipe 106 later in the same manner as the first protrusion 16, and thus in the radial direction. A plurality of (in this embodiment, two) divided projections (divided portions) 17a are divided. The division | segmentation protrusion part 17a comprises the same shape, and is set to the length shorter than the half periphery of the piping 106. FIG. The 2nd projection part 17 is arranged so that each division projection part 17a may contact the perimeter of piping 106, and is joined by welding. In this case, since each divided projection 17a has a length shorter than the half circumference of the pipe 106, the left and right side parts on the outer peripheral surface of the pipe 106 are not connected.

そのため、図８に詳細に示すように、配管１０６の外側に突起部１６，１７が固定されたとき、突起部１６，１７の外周面と外筒１１の内周面との間に隙間Ｇ５，Ｇ６が確保される。なお、この突起部１６，１７は、剛性を維持することのできる材料、例えば、炭素鋼や、配管１０６に溶接することのできる金属材により形成されている。   Therefore, as shown in detail in FIG. 8, when the protrusions 16 and 17 are fixed to the outside of the pipe 106, a gap G <b> 5 is formed between the outer peripheral surface of the protrusions 16 and 17 and the inner peripheral surface of the outer cylinder 11. G6 is secured. The protrusions 16 and 17 are made of a material that can maintain rigidity, for example, carbon steel or a metal material that can be welded to the pipe 106.

隙間調整部材１８，１９は、一対の側蓋部材１２，１３に設けられて配管１０６の外周面との隙間量を規定値に設定するものである。隙間調整部材１８，１９は、外筒１１における軸方向の一端部及び他端部であって、側蓋部材１２，１３の外側の端面に取付けられるものであり、環状をなす形状に形成されている。そのため、隙間調整部材１８，１９は、外径が外筒１１や側蓋部材１２，１３の外径より小さく設定され、内径が配管１０６の外径より若干大きく設定されている。   The gap adjusting members 18 and 19 are provided in the pair of side lid members 12 and 13 and set the gap amount with the outer peripheral surface of the pipe 106 to a specified value. The gap adjusting members 18 and 19 are one end and the other end in the axial direction of the outer cylinder 11 and are attached to the outer end faces of the side cover members 12 and 13 and are formed in an annular shape. Yes. Therefore, the gap adjusting members 18 and 19 have an outer diameter set smaller than the outer diameter of the outer cylinder 11 and the side cover members 12 and 13, and an inner diameter set slightly larger than the outer diameter of the pipe 106.

外筒１１の一端部で第１側蓋部材１２の外側の端面に接して配置される第１隙間調整部材１８は、既設の配管１０６の外周側に後から取付ける必要から、周方向に分割された複数（本実施形態では、２個）の分割隙間調整部材（分割部）１８ａにより構成されている。第１隙間調整部材１８は、各分割隙間調整部材１８ａが配管１０６の外周を覆うように配置され、この各分割隙間調整部材１８ａを突き合わせた部分が溶接されることで両者が結合され、配管１０６の外側に取付けられる。そして、第１隙間調整部材１８は、各分割隙間調整部材１８ａの端面が第１側蓋部材１２における各分割側蓋部材１２ａの外端面に接触し、溶接により固定されている。   The first gap adjusting member 18 disposed in contact with the outer end face of the first side cover member 12 at one end of the outer cylinder 11 is divided in the circumferential direction because it needs to be attached to the outer peripheral side of the existing pipe 106 later. In addition, a plurality of (in this embodiment, two) divided gap adjusting members (divided portions) 18a are used. The first gap adjusting member 18 is arranged so that each divided gap adjusting member 18 a covers the outer periphery of the pipe 106, and the portions where the respective divided gap adjusting members 18 a are abutted are welded to each other so that the pipe 106 is joined. Installed on the outside. The first gap adjusting member 18 is fixed by welding with the end face of each divided gap adjusting member 18a contacting the outer end face of each divided side lid member 12a in the first side lid member 12.

外筒１１の他端部で第２側蓋部材１３の外側の端面に接して配置される第２隙間調整部材１９は、既設の配管１０６の外周側に後から取付ける必要から、周方向に分割された複数（本実施形態では、２個）の分割隙間調整部材（分割部）１９ａにより構成されている。第２隙間調整部材１９は、各分割隙間調整部材１９ａが配管１０６の外周を覆うように配置され、この各分割隙間調整部材１９ａを突き合わせた部分が溶接されることで両者が結合され、配管１０６の外側に取付けられる。そして、第２隙間調整部材１９は、各分割隙間調整部材１９ａの端面が第２側蓋部材１３における各分割側蓋部材１３ａの外端面に接触し、溶接により固定されている。   The second gap adjustment member 19 disposed in contact with the outer end face of the second side lid member 13 at the other end of the outer cylinder 11 needs to be attached to the outer peripheral side of the existing pipe 106 later, so that it is divided in the circumferential direction. A plurality of (in this embodiment, two) divided gap adjusting members (divided portions) 19a are formed. The second gap adjusting member 19 is arranged so that each divided gap adjusting member 19 a covers the outer periphery of the pipe 106, and the portions where the respective divided gap adjusting members 19 a are abutted are welded to each other, whereby the pipe 106 is joined. Installed on the outside. The second gap adjusting member 19 is fixed by welding with the end face of each divided gap adjusting member 19a contacting the outer end face of each divided side lid member 13a in the second side lid member 13.

そのため、図８に詳細に示すように、配管１０６の外側に外筒１１と側蓋部材１２，１３と受圧部材１４，１５と隙間調整部材１８，１９が組付けられたとき、配管１０６の外周面と隙間調整部材１８，１９の内周面との間に隙間Ｇ７，Ｇ８が確保される。なお、各隙間調整部材１８，１９は、剛性を維持することのできる材料、例えば、炭素鋼により形成されている。   Therefore, as shown in detail in FIG. 8, when the outer cylinder 11, the side cover members 12, 13, the pressure receiving members 14, 15 and the gap adjusting members 18, 19 are assembled outside the pipe 106, the outer periphery of the pipe 106 Gaps G7 and G8 are secured between the surface and the inner peripheral surfaces of the gap adjusting members 18 and 19. In addition, each clearance gap adjustment member 18 and 19 is formed with the material which can maintain rigidity, for example, carbon steel.

配管防護装置１０は、外筒１１が配管１０６の外周を覆うことで、配管１０６の破断時に、外部への流体の流出を抑制するものであることから、外筒１１の各端部と配管１０６の外周面との隙間を小さくすることが望ましい。しかし、配管１０６は、内部を流動する流体の熱を受けて外側に膨張することから、組付時に、配管１０６の熱膨張量を考慮して隙間を設定する必要がある。そのため、外筒１１の端部に固定される側蓋部材１２，１３は、内周面と配管１０６の外周面との間に比較的大きな隙間Ｇ１，Ｇ２が設定されている。隙間調整部材１８，１９は、側蓋部材１２，１３に固定されることで、内周面と配管１０６の外周面との間に隙間Ｇ１，Ｇ２より小さい隙間Ｇ７，Ｇ８を確保することで、側蓋部材１２，１３（隙間調整部材１８，１９）の内周面と配管１０６の外周面との隙間量を規定値に設定する。そのため、隙間調整部材１８，１９は、少なくとも内径が相違する複数種類のものが用意されている。   Since the outer cylinder 11 covers the outer periphery of the pipe 106 to prevent the fluid from flowing out to the outside when the pipe 106 is broken, the pipe protection device 10 is connected to each end of the outer cylinder 11 and the pipe 106. It is desirable to reduce the gap with the outer peripheral surface of the. However, since the pipe 106 receives the heat of the fluid flowing inside and expands outward, it is necessary to set a gap in consideration of the amount of thermal expansion of the pipe 106 during assembly. Therefore, the side cover members 12 and 13 fixed to the end of the outer cylinder 11 have relatively large gaps G1 and G2 between the inner peripheral surface and the outer peripheral surface of the pipe 106. The gap adjusting members 18 and 19 are fixed to the side lid members 12 and 13 to secure gaps G7 and G8 smaller than the gaps G1 and G2 between the inner peripheral surface and the outer peripheral surface of the pipe 106. The gap amount between the inner peripheral surface of the side lid members 12 and 13 (gap adjusting members 18 and 19) and the outer peripheral surface of the pipe 106 is set to a specified value. Therefore, a plurality of types of clearance adjustment members 18 and 19 having at least different inner diameters are prepared.

即ち、外径の相違する複数種類の配管１０６に対して、外筒１１、側蓋部材１２，１３、受圧部材１４，１５の各部材を共通化した量産部品とし、内径の相違する複数種類の隙間調整部材１８，１９を用意しておく。そして、配管１０６に配管防護装置１０を取付けるとき、量産部品としての外筒１１、側蓋部材１２，１３、受圧部材１４，１５を用意すると共に、配管１０６の外径に対して隙間量が適正な規定値となる隙間調整部材１８，１９を選択する。   That is, for the plural types of pipes 106 having different outer diameters, the outer cylinder 11, the side cover members 12, 13, and the pressure receiving members 14, 15 are made into mass-produced parts, and the plural types of pipes 106 having different inner diameters are used. The gap adjusting members 18 and 19 are prepared. When the pipe protection device 10 is attached to the pipe 106, the outer cylinder 11, the side cover members 12 and 13 and the pressure receiving members 14 and 15 are prepared as mass production parts, and the gap amount is appropriate with respect to the outer diameter of the pipe 106. The gap adjusting members 18 and 19 having a predetermined value are selected.

本実施形態の配管防護装置１０は、図４に示すように、配管１０６の外周を覆う外筒１１の内周面における各端部に側蓋部材１２，１３と隙間調整部材１８，１９を固定すると共にその内側に受圧部材１４，１５を固定する一方、配管１０６の外周面における受圧部材１４，１５の内側に隣接して突起部１６，１７が固定されて構成されている。即ち、配管防護装置１０は、図８に示すように、配管１０６の外側に外筒１１が配置され、外筒１１の各端部に側蓋部材１２，１３と隙間調整部材１８，１９と受圧部材１４，１５が固定され、配管１０６の外周面における受圧部材１４，１５に隣接して突起部１６，１７が固定されて構成されている。この場合、受圧部材１４，１５と突起部１６，１７との間に組付用隙間を設けることが望ましい。   As shown in FIG. 4, the pipe protection device 10 according to the present embodiment fixes the side cover members 12 and 13 and the gap adjustment members 18 and 19 to each end on the inner peripheral surface of the outer cylinder 11 that covers the outer periphery of the pipe 106. In addition, the pressure receiving members 14 and 15 are fixed to the inside thereof, and the protrusions 16 and 17 are fixed to the outer peripheral surface of the pipe 106 adjacent to the inside of the pressure receiving members 14 and 15. That is, as shown in FIG. 8, the pipe protection device 10 has an outer cylinder 11 disposed outside the pipe 106, and side cover members 12, 13, gap adjustment members 18, 19 and pressure receiving at each end of the outer cylinder 11. The members 14 and 15 are fixed, and the protrusions 16 and 17 are fixed adjacent to the pressure receiving members 14 and 15 on the outer peripheral surface of the pipe 106. In this case, it is desirable to provide an assembly gap between the pressure receiving members 14 and 15 and the protrusions 16 and 17.

また、本実施形態にて、図２に示すように、配管１０６は、固定部材２１により固定側となる周辺の支持部材（建屋の壁部や装置フレームなど）２２に支持されており、配管防護装置１０は、この固定部材２１に支持されている。   In this embodiment, as shown in FIG. 2, the pipe 106 is supported by a peripheral supporting member 22 (such as a wall of a building or a device frame) on the fixed side by a fixing member 21, thereby protecting the pipe. The device 10 is supported by the fixing member 21.

固定部材２１は、配管１０６を支持する支持部材２２に固定される基台２１ａと、この基台２１ａから配管１０６の軸方向の中間部に向かって延在する支持柱２１ｂと、支持柱２１ｂと配管１０６とを接続する接続部材（パッド）２１ｃとを有し、支持柱２１ｂの周囲に補強用の接続部材（例えば、フランジなど）を設けてもよい。   The fixing member 21 includes a base 21 a that is fixed to the support member 22 that supports the pipe 106, a support column 21 b that extends from the base 21 a toward an intermediate portion in the axial direction of the pipe 106, and a support column 21 b A connecting member (pad) 21c that connects the pipe 106 may be provided, and a reinforcing connecting member (for example, a flange) may be provided around the support column 21b.

基台２１ａは、板状に形成されたもので、設備内の剛性を有する支持部材２２に固定されている。支持柱２１ｂは、円柱状または角柱状に形成されたもので、下端部が基台２１ａに固定されている。接続部材２１ｃは、配管１０６の下半部の形状に沿って形成されており、円筒を半割とした形状の部材である。接続部材２１ｃは、内周面が配管１０６の外周面形状に沿って形成され、外周面が外筒１１の内周面形状に沿って形成されている。即ち、接続部材２１ｃは、円筒の一部の形状をなし、配管１０６と外筒１１との間に介在されるように配置されている。この接続部材２１ｃは、配管１０６に対して、その外縁が溶接により接続されている。そして、支持柱２１ｂは、上端部が接続部材２１ｃに固定されることで、配管１０６に接続されている。   The base 21a is formed in a plate shape, and is fixed to a support member 22 having rigidity in the facility. The support column 21b is formed in a columnar shape or a rectangular column shape, and a lower end portion is fixed to the base 21a. The connection member 21c is formed along the shape of the lower half portion of the pipe 106, and is a member having a shape in which a cylinder is halved. The connecting member 21 c has an inner peripheral surface formed along the outer peripheral surface shape of the pipe 106 and an outer peripheral surface formed along the inner peripheral surface shape of the outer cylinder 11. That is, the connecting member 21 c has a shape of a part of a cylinder and is disposed so as to be interposed between the pipe 106 and the outer cylinder 11. The connecting member 21c has an outer edge connected to the pipe 106 by welding. And the support pillar 21b is connected to the piping 106 by fixing an upper end part to the connection member 21c.

配管防護装置１０は、外筒１１の下部に開口部２３が形成されており、固定部材２１は、支持柱２１ｂの上部がこの開口部２３を挿通している。開口部２３は、接続部材２１ｃの外周面の大きさよりも小さく開口し、支持柱２１ｂの外径とほぼ同径に形成されている。そして、開口部２３は、開口縁が支持柱２１ｂの外周面に対して溶接により接続されている。   In the pipe protection device 10, an opening 23 is formed in the lower part of the outer cylinder 11, and in the fixing member 21, the upper part of the support column 21 b is inserted through the opening 23. The opening 23 opens smaller than the size of the outer peripheral surface of the connection member 21c, and is formed to have substantially the same diameter as the outer diameter of the support column 21b. The opening 23 has an opening edge connected to the outer peripheral surface of the support column 21b by welding.

上述した第１実施形態の配管防護装置１０にて、図４に示すように、配管１０６が破断位置Ｆで破断すると、配管１０６は、この破断位置Ｆを起点として互いに離間しようとする。即ち、配管１０６は、一方（左側）が矢印Ａ方向へ移動しようとし、他方（右側）が矢印Ｂ方向へ移動しようとする。このとき、配管１０６は、各突起部１６，１７が各受圧部材１４，１５に当接して係止されることから、破断した配管１０６の移動が阻止される。そのため、配管１０６は、破断部（破断位置Ｆ）から流体が流出するものの、この流体は、外筒１１と側蓋部材１２，１３と隙間調整部材１８，１９に覆われた空間部Ｓに留まることとなり、外筒１１の外部への流体の噴出が抑制される。このとき、外筒１１は、各端部に側蓋部材１２，１３及び隙間調整部材１８，１９が固定され、隙間調整部材１８，１９の内周面と配管１０６の外周面との隙間が規定値となっている。そのため、空間部Ｓの流体がこの隙間から外部に漏洩するのを極力抑制される。また、破断した配管１０６の移動が阻止されることから、この破断した配管１０６が振れ回る配管ホイップが防止され、且つ、破断の進行が抑制される。   In the pipe protection device 10 of the first embodiment described above, as shown in FIG. 4, when the pipe 106 breaks at the breaking position F, the pipes 106 try to be separated from each other starting from the breaking position F. That is, one (left side) of the piping 106 tries to move in the direction of arrow A, and the other (right side) tries to move in the direction of arrow B. At this time, since the protruding portions 16 and 17 abut on the pressure receiving members 14 and 15 in the piping 106, the piping 106 is prevented from moving. Therefore, although the fluid flows out from the breakage portion (breakage position F), the pipe 106 remains in the space portion S covered with the outer cylinder 11, the side lid members 12 and 13, and the gap adjustment members 18 and 19. As a result, the ejection of fluid to the outside of the outer cylinder 11 is suppressed. At this time, the outer cylinder 11 has the side cover members 12 and 13 and the gap adjusting members 18 and 19 fixed to each end, and the gap between the inner peripheral surface of the gap adjusting members 18 and 19 and the outer peripheral surface of the pipe 106 is defined. It is a value. Therefore, the fluid in the space S is prevented from leaking outside through this gap as much as possible. Further, since the movement of the broken pipe 106 is prevented, the pipe whip around which the broken pipe 106 swings is prevented, and the progress of the break is suppressed.

このように第１実施形態の配管防護装置にあっては、流体が流通する配管１０６の外周を覆う外筒１１と、外筒１１における軸方向の端部に固定されるリング形状をなす側蓋部材１２，１３と、側蓋部材１２，１３に設けられて配管１０６の外周面との隙間量を規定値に設定する隙間調整部材１８，１９とを設けている。   As described above, in the pipe protection device according to the first embodiment, the outer cylinder 11 that covers the outer periphery of the pipe 106 through which the fluid flows, and the side cover that forms a ring shape that is fixed to the axial end of the outer cylinder 11. Gap adjustment members 18 and 19 are provided that set the gap amount between the members 12 and 13 and the side cover members 12 and 13 to the outer peripheral surface of the pipe 106 to a specified value.

従って、配管１０６が破断したとき、外周が外筒１１により覆われていることから、破断部から噴出する流体がこの外筒１１により堰き止められ、配管１０６の周囲への流体の噴出を抑制することができる。しかも、外筒１１は、端部が側蓋部材１２，１３と隙間調整部材１８，１９により配管１０６の外周面との隙間量が規定値に設定されることから、外筒１１の端部からの流体の漏洩を抑制することができる。その結果、配管１０６から噴出した流体が配管１０６の周囲の構造物や機器類に影響を与える事態を防ぎ、構造物や機器類を保護することができる。   Therefore, since the outer periphery is covered with the outer cylinder 11 when the pipe 106 is broken, the fluid ejected from the fractured portion is blocked by the outer cylinder 11, and the ejection of the fluid around the pipe 106 is suppressed. be able to. In addition, since the outer cylinder 11 has the end portion of the side cover members 12, 13 and the gap adjustment members 18, 19, the gap amount between the outer peripheral surface of the pipe 106 is set to a specified value, The leakage of fluid can be suppressed. As a result, it is possible to prevent the fluid ejected from the pipe 106 from affecting the structures and equipment around the pipe 106 and protect the structures and equipment.

第１実施形態の配管防護装置では、側蓋部材１２，１３及び隙間調整部材１８，１９を外筒１１における軸方向の一端部と他端部に固定し、外筒１１の内周面における側蓋部材１２，１３の内側に隣接して一対の受圧部材１４，１５を固定する一方、配管１１の外周面における受圧部材１４，１５の間に隣接して一対の突起部１６，１７を固定している。   In the piping protection device according to the first embodiment, the side cover members 12 and 13 and the gap adjusting members 18 and 19 are fixed to one end and the other end in the axial direction of the outer cylinder 11, and the side on the inner peripheral surface of the outer cylinder 11. A pair of pressure receiving members 14 and 15 are fixed adjacent to the inside of the lid members 12 and 13, while a pair of protrusions 16 and 17 are fixed adjacent to each other between the pressure receiving members 14 and 15 on the outer peripheral surface of the pipe 11. ing.

従って、外筒１１の内周面における各端部に受圧部材１４，１５をそれぞれ固定すると共に、配管１０６の外周面における各端部に突起部１６，１７をそれぞれ固定することで、配管１０６の突起部１６，１７が外筒１１の受圧部材１４，１５に係止されることで、配管１０６が破断部を起点として離間する動作が防止され、配管１０６における破断の進行を抑制することができる。   Accordingly, the pressure receiving members 14 and 15 are fixed to the respective end portions on the inner peripheral surface of the outer cylinder 11, and the protrusions 16 and 17 are fixed to the respective end portions on the outer peripheral surface of the pipe 106. Since the protrusions 16 and 17 are locked to the pressure receiving members 14 and 15 of the outer cylinder 11, the operation of separating the pipe 106 from the fracture portion is prevented, and the progress of the fracture in the pipe 106 can be suppressed. .

そして、構造物には、配管ホイップや、配管１０６から噴出した流体を遮るジェットバリアを設置する必要がなく、構造物側に大きな荷重の作用をなくすことができる。更に、配管１０６の周りへの流体の噴出を抑制することで、配管１０６と安全上重要な設備とを物理的に分離するための区画化の必要がなく、設備の建屋形状に影響を及ぼす事態を防ぐことができる。   Further, it is not necessary to install a pipe whip or a jet barrier that blocks the fluid ejected from the pipe 106 in the structure, and it is possible to eliminate the action of a large load on the structure side. Further, by suppressing the ejection of fluid around the pipe 106, there is no need for partitioning for physically separating the pipe 106 and safety-important equipment, and this affects the building shape of the equipment. Can be prevented.

第１実施形態の配管防護装置では、隙間調整部材１８，１９を側蓋部材１２，１３における外側の端面に固定している。従って、側蓋部材１２，１３に対して隙間調整部材１８，１９を容易に固定することができ、組付性を向上することができる。   In the piping protection device of the first embodiment, the gap adjusting members 18 and 19 are fixed to the outer end surfaces of the side lid members 12 and 13. Therefore, the gap adjusting members 18 and 19 can be easily fixed to the side lid members 12 and 13, and the assemblability can be improved.

第１実施形態の配管防護装置では、隙間調整部材１８，１９と配管１０６との隙間Ｇ７,Ｇ８を側蓋部材１２，１３と配管１１との隙間Ｇ１，Ｇ２より小さく設定している。従って、配管１０６の寸法に合わせて側蓋部材１２，１３を高精度に設計及び製造する必要がなくなり、製造コストを低減することができ、また、隙間調整部材１８，１９の内面と配管１０６の外面との隙間Ｇ７，Ｇ８を小さく設定することで、外筒１１の端部から外部への流体の漏洩を防止することができる。   In the pipe protection device of the first embodiment, the gaps G7 and G8 between the gap adjusting members 18 and 19 and the pipe 106 are set smaller than the gaps G1 and G2 between the side cover members 12 and 13 and the pipe 11. Therefore, it is not necessary to design and manufacture the side cover members 12 and 13 with high accuracy in accordance with the dimensions of the pipe 106, the manufacturing cost can be reduced, and the inner surfaces of the gap adjusting members 18 and 19 and the pipe 106 can be reduced. By setting the gaps G7 and G8 with the outer surface small, the leakage of fluid from the end of the outer cylinder 11 to the outside can be prevented.

第１実施形態の配管防護装置では、外筒１１を径方向に分割された複数の分割外筒１１ａにより構成し、側蓋部材１２，１３を径方向に分割された複数の分割側蓋部材１２ａ，１３ａにより構成し、受圧部材１４，１５を径方向に分割された複数の分割受圧部材１４ａ，１５ａにより構成し、隙間調整部材１８，１９を径方向に分割された複数の分割隙間調整部材１８ａ，１９ａにより構成している。従って、分割外筒１１ａ、分割側蓋部材１２ａ，１３ａ、分割受圧部材１４ａ，１５ａ、分割隙間調整部材１８ａ，１９ａを配管１０６の外側から覆うように組付けて固定することで、配管１０６に対して外筒１１、側蓋部材１２，１３、受圧部材１４，１５、隙間調整部材１８，１９を容易に組付けることができ、組付性を向上することができる。   In the piping protection device according to the first embodiment, the outer cylinder 11 is constituted by a plurality of divided outer cylinders 11a divided in the radial direction, and the side lid members 12, 13 are divided in the radial direction by a plurality of divided side lid members 12a. 13a, the pressure receiving members 14, 15 are constituted by a plurality of divided pressure receiving members 14a, 15a divided in the radial direction, and the gap adjusting members 18, 19 are divided by a plurality of divided gap adjusting members 18a divided in the radial direction. , 19a. Accordingly, the divided outer cylinder 11a, the divided side cover members 12a and 13a, the divided pressure receiving members 14a and 15a, and the divided gap adjusting members 18a and 19a are assembled and fixed so as to cover from the outside of the pipe 106. Thus, the outer cylinder 11, the side cover members 12, 13, the pressure receiving members 14, 15, and the gap adjusting members 18, 19 can be easily assembled, and the assemblability can be improved.

第１実施形態の配管防護装置では、配管１１の外周面が固定部材２１を介して周囲の支持部材２２に支持され、外筒１１に固定部材２１が挿通される開口部２３を設け、開口部２３の開口縁を固定部材２１に接続している。従って、固定部材２１により固定されている配管１０６にて、この配管１０６と固定部材２１との接続を保証しつつ、固定部材２１の一部を利用して外筒１１を固定するため、配管１０６が破断したとき、外筒１１により配管１０６の破断部から噴出する流体を堰き止めることから、配管１０６の周囲への流体の噴出を抑制することができる。   In the pipe protection device according to the first embodiment, the outer peripheral surface of the pipe 11 is supported by the surrounding support member 22 via the fixing member 21, and the opening 23 through which the fixing member 21 is inserted is provided in the outer cylinder 11. The opening edge of 23 is connected to the fixing member 21. Therefore, in the pipe 106 fixed by the fixing member 21, the pipe 106 is used to fix the outer cylinder 11 using a part of the fixing member 21 while ensuring the connection between the pipe 106 and the fixing member 21. Since the fluid ejected from the fractured portion of the pipe 106 is blocked by the outer cylinder 11 when the pipe is broken, the ejection of the fluid around the pipe 106 can be suppressed.

第１実施形態の配管防護装置では、受圧部材１４，１５をそれぞれ２個の分割受圧部材１４ａ，１５ａにより構成し、各分割受圧部材１４ａ，１５ａの周方向の長さを外筒１１の半周よりも短い長さとし、外筒１１の上部と下部を連結していない。また、突起部１６，１７をそれぞれ２個の分割突起部１６ａ，１７ａにより構成し、各分割突起部１６ａ，１７ａの周方向の長さを配管１０６の半周よりも短い長さとし、配管１０６の左右の側部を連結していない。従って、外筒１１（分割外筒１１ａ）に対する受圧部材１４，１５（分割受圧部材１４ａ，１５ａ）の組付性を向上することができると共に、配管１０６に対する突起部１６，１７（分割突起部１６ａ，１７ａ）の組付性を向上することができる。   In the piping protection device of the first embodiment, each of the pressure receiving members 14 and 15 is constituted by two divided pressure receiving members 14 a and 15 a, and the circumferential length of each of the divided pressure receiving members 14 a and 15 a is from the half circumference of the outer cylinder 11. And the upper and lower portions of the outer cylinder 11 are not connected. Further, each of the projections 16 and 17 is composed of two divided projections 16a and 17a, and the circumferential length of each of the division projections 16a and 17a is shorter than the half circumference of the pipe 106. The sides of the are not connected. Therefore, it is possible to improve the assembling property of the pressure receiving members 14 and 15 (divided pressure receiving members 14a and 15a) with respect to the outer cylinder 11 (divided outer cylinder 11a), and the protrusions 16 and 17 (divided protrusion 16a with respect to the pipe 106). 17a) can be improved.

また、第１実施形態の原子力設備にあっては、原子炉で生成された熱により高温・高圧の流体を発生させて配管１０６（二次冷却水管１０６ａ，１０６ｂなど）で送り、流体を利用する原子力設備にて、配管１０６に配管防護装置１０を適用している。   Further, in the nuclear power facility of the first embodiment, a high-temperature / high-pressure fluid is generated by heat generated in the nuclear reactor, and is sent through the pipe 106 (secondary cooling water pipes 106a, 106b, etc.) to use the fluid. The pipe protection device 10 is applied to the pipe 106 in a nuclear facility.

従って、配管防護装置１０により、配管１０６から噴出した流体が配管１０６の周囲の構造物や機器類に影響を与える事態を防ぎ、構造物や機器類を保護することができる。   Accordingly, the pipe protection device 10 can prevent the fluid ejected from the pipe 106 from affecting the structures and equipment around the pipe 106 and protect the structures and equipment.

［第２実施形態］
図９は、第２実施形態の配管防護装置における配管延在方向の断面図である。なお、上述した実施形態と同様の機能を有する部材には、同一の符号を付して詳細な説明は省略する。 [Second Embodiment]
FIG. 9 is a cross-sectional view of the pipe extending direction in the pipe protection device of the second embodiment. In addition, the same code | symbol is attached | subjected to the member which has the same function as embodiment mentioned above, and detailed description is abbreviate | omitted.

第２実施形態において、図９に示すように、配管防護装置３０は、断面が円形状をなす配管１０６の外側に設けられるものであり、外筒３１と、側蓋部材３２と、受圧部材（係止部材）３３と、突起部３４と、隙間調整部材３５とを有している。ここで、配管１０６は、延在方向における一端部が壁部（支持部材）４１に形成された貫通孔４２に挿通され、図示しない固定部材により壁部４１に固定されている。   In the second embodiment, as shown in FIG. 9, the pipe protection device 30 is provided outside the pipe 106 having a circular cross section, and includes an outer cylinder 31, a side lid member 32, a pressure receiving member ( (Locking member) 33, projecting portion 34, and gap adjusting member 35. Here, one end of the pipe 106 in the extending direction is inserted into a through hole 42 formed in the wall (support member) 41 and is fixed to the wall 41 by a fixing member (not shown).

外筒３１は、配管１０６の所定部位の外周を覆うものであり、配管１０６の延在方向（軸方向）に沿って筒状に形成されている。外筒３１は、断面が円形状をなし、内径が配管１０６の外径より所定量大きく設定されている。壁部４１は、貫通孔４２の周囲に環状をなす取付台４３が固定されている。外筒３１は、軸方向の一端部に取付フランジ３１ａが一体（または別体、または、板金製）に形成され、この取付フランジ３１ａが取付台４３に密着し、複数のボルト４４により固定されている。そのため、配管１０６の外側に外筒３１が組付けられたとき、配管１０６の外周面と外筒３１の内周面との間に空間部Ｓが確保される。   The outer cylinder 31 covers the outer periphery of a predetermined portion of the pipe 106 and is formed in a cylindrical shape along the extending direction (axial direction) of the pipe 106. The outer cylinder 31 has a circular cross section, and the inner diameter is set larger than the outer diameter of the pipe 106 by a predetermined amount. The wall portion 41 is fixed with an annular mounting base 43 around the through hole 42. The outer cylinder 31 has a mounting flange 31a formed integrally (or separately or made of sheet metal) at one end in the axial direction. The mounting flange 31a is in close contact with the mounting base 43 and fixed by a plurality of bolts 44. Yes. Therefore, when the outer cylinder 31 is assembled outside the pipe 106, a space S is secured between the outer peripheral surface of the pipe 106 and the inner peripheral surface of the outer cylinder 31.

側蓋部材３２は、外筒３１における延在方向の他端部に取付けられるものであり、環状をなす形状に形成されている。側蓋部材３２は、外径が外筒３１の外径とほぼ同じに設定され、内径が配管１０６の外径より若干大きく設定されている。側蓋部材３２は、外筒３１の他端面に接触し、溶接により固定されている。   The side cover member 32 is attached to the other end portion of the outer cylinder 31 in the extending direction, and is formed in an annular shape. The side cover member 32 is set to have an outer diameter that is substantially the same as the outer diameter of the outer cylinder 31, and an inner diameter that is slightly larger than the outer diameter of the pipe 106. The side lid member 32 contacts the other end surface of the outer cylinder 31 and is fixed by welding.

受圧部材３３は、外筒３１における延在方向の他端部に取付けられるものであり、環状をなす形状に形成されている。受圧部材３３は、外径が外筒３１の内径とほぼ同じに設定され、内径が配管１０６の外径より若干大きく設定されている。そして、受圧部材３３は、外筒３１の内周面と側蓋部材３２の一方の面に固定されている。   The pressure receiving member 33 is attached to the other end portion of the outer cylinder 31 in the extending direction, and is formed in an annular shape. The pressure receiving member 33 is set to have an outer diameter substantially the same as the inner diameter of the outer cylinder 31, and the inner diameter is set slightly larger than the outer diameter of the pipe 106. The pressure receiving member 33 is fixed to the inner peripheral surface of the outer cylinder 31 and one surface of the side lid member 32.

突起部３４は、配管１０６の外周面に固定され、配管１０６の外周面から径方向の外側に突出するものであり、環状をなす形状に形成されている。突起部３４は、外筒３１により覆われる配管１０６の所定部位における軸方向の他端部に固定されている。具体的に、突起部３４は、配管１０６の外周面における受圧部材３３における壁部４１側であって、この受圧部材３３に隣接して配置されている。突起部３４は、内径が配管１０６の外径とほぼ同じに設定され、外径が外筒３１の内径より若干小さく設定されている。   The protrusion 34 is fixed to the outer peripheral surface of the pipe 106, protrudes radially outward from the outer peripheral surface of the pipe 106, and is formed in an annular shape. The protruding portion 34 is fixed to the other end portion in the axial direction at a predetermined portion of the pipe 106 covered with the outer cylinder 31. Specifically, the protrusion 34 is disposed on the wall 41 side of the pressure receiving member 33 on the outer peripheral surface of the pipe 106 and adjacent to the pressure receiving member 33. The protrusion 34 has an inner diameter set to be substantially the same as the outer diameter of the pipe 106, and the outer diameter is set slightly smaller than the inner diameter of the outer cylinder 31.

隙間調整部材３５は、側蓋部材３２に設けられて配管１０６の外周面との隙間量を規定値に設定するものである。隙間調整部材３５は、外筒３１における軸方向の一端部であって、側蓋部材３２の外側の端面に取付けられるものであり、環状をなす形状に形成されている。そのため、隙間調整部材３５は、外径が外筒３１や側蓋部材３２の外径より小さく設定され、内径が配管１０６の外径より若干大きく設定されている。この隙間調整部材３５は、側蓋部材３２に固定されることで、側蓋部材３２（隙間調整部材３５）の内周面と配管１０６の外周面との隙間量を規定値に設定する。そのため、隙間調整部材３５は、少なくとも内径が相違する複数種類のものが用意されている。   The gap adjusting member 35 is provided in the side cover member 32 and sets the gap amount with the outer peripheral surface of the pipe 106 to a specified value. The gap adjusting member 35 is one end portion in the axial direction of the outer cylinder 31 and is attached to the outer end surface of the side lid member 32, and is formed in an annular shape. Therefore, the outer diameter of the gap adjusting member 35 is set smaller than the outer diameter of the outer cylinder 31 or the side cover member 32, and the inner diameter is set slightly larger than the outer diameter of the pipe 106. The gap adjusting member 35 is fixed to the side lid member 32, thereby setting the gap amount between the inner peripheral surface of the side lid member 32 (gap adjusting member 35) and the outer peripheral surface of the pipe 106 to a specified value. Therefore, a plurality of types of clearance adjustment members 35 having at least different inner diameters are prepared.

本実施形態の配管防護装置３０は、一端部側が壁部４１に支持された配管１０６の外周を覆う外筒３１の内周面における他端部に側蓋部材３２と隙間調整部材３５を固定すると共にその内側に受圧部材３３を固定する一方、受圧部材３３の内側に隣接して配管１０６の外周面に突起部３４が固定されて構成されている。   In the pipe protection device 30 of the present embodiment, the side cover member 32 and the gap adjusting member 35 are fixed to the other end portion of the inner peripheral surface of the outer cylinder 31 that covers the outer periphery of the pipe 106 whose one end portion is supported by the wall portion 41. At the same time, the pressure receiving member 33 is fixed to the inside thereof, while the protrusion 34 is fixed to the outer peripheral surface of the pipe 106 adjacent to the inside of the pressure receiving member 33.

そのため、配管１０６が破断位置Ｆで破断すると、配管１０６は、この破断位置Ｆを起点として互いに離間しようとする。即ち、配管１０６は、一方（右側）が壁部４１に支持されていることから、他方（左側）が矢印Ｃ方向へ移動しようとする。このとき、配管１０６は、突起部３４が受圧部材３３に当接して係止されることから、破断した配管１０６の移動が阻止される。そのため、配管１０６は、破断部（破断位置Ｆ）から流体が流出するものの、この流体は、外筒３１と側蓋部材３２と隙間調整部材３５に覆われた空間部Ｓに留まることとなり、外筒３１の外部への流体の噴出が抑制される。また、破断した配管１０６の移動が阻止されることから、この破断した配管１０６が振れ回る配管ホイップが防止され、且つ、破断の進行が抑制される。   Therefore, when the pipes 106 break at the breaking position F, the pipes 106 try to be separated from each other starting from the breaking position F. That is, since one side (right side) of the pipe 106 is supported by the wall portion 41, the other side (left side) tends to move in the direction of arrow C. At this time, since the protruding portion 34 comes into contact with the pressure receiving member 33 and is locked, the pipe 106 is prevented from moving the broken pipe 106. Therefore, although the fluid flows out from the fracture portion (rupture position F), the pipe 106 remains in the space portion S covered by the outer cylinder 31, the side lid member 32, and the gap adjustment member 35, and the outside The ejection of fluid to the outside of the cylinder 31 is suppressed. Further, since the movement of the broken pipe 106 is prevented, the pipe whip around which the broken pipe 106 swings is prevented, and the progress of the break is suppressed.

このように第２実施形態の配管防護装置にあっては、流体が流通する配管１０６の外周を覆う外筒３１と、外筒３１における軸方向の端部に固定されるリング形状をなす側蓋部材３２と、側蓋部材３２に設けられて配管１０６の外周面との隙間量を規定値に設定する隙間調整部材３５とを設けている。   As described above, in the pipe protection device of the second embodiment, the outer cylinder 31 that covers the outer periphery of the pipe 106 through which the fluid flows, and the side cover that forms a ring shape that is fixed to the axial end of the outer cylinder 31. A gap adjusting member 35 is provided, which is provided in the member 32 and the side lid member 32 and sets the gap amount between the outer peripheral surface of the pipe 106 to a specified value.

従って、配管１０６が破断したとき、外周が外筒３１により覆われていることから、破断部から噴出する流体がこの外筒３１により堰き止められ、配管１０６の周囲への流体の噴出を抑制することができる。しかも、外筒３１は、端部が側蓋部材３２と隙間調整部材３５により配管１０６の外周面との隙間量が規定値に設定されることから、外筒３１の端部からの流体の漏洩を抑制することができる。その結果、配管１０６から噴出した流体が配管１０６の周囲の構造物や機器類に影響を与える事態を防ぎ、構造物や機器類を保護することができる。   Therefore, since the outer periphery is covered with the outer cylinder 31 when the pipe 106 is broken, the fluid ejected from the fractured portion is blocked by the outer cylinder 31, and the ejection of the fluid around the pipe 106 is suppressed. be able to. Moreover, since the outer cylinder 31 has a gap amount between the end portion of the outer tube 31 and the outer peripheral surface of the pipe 106 set by the side cover member 32 and the gap adjusting member 35, the leakage of fluid from the end portion of the outer cylinder 31. Can be suppressed. As a result, it is possible to prevent the fluid ejected from the pipe 106 from affecting the structures and equipment around the pipe 106 and protect the structures and equipment.

第２実施形態の配管防護装置では、外筒３１は、一端部が壁部４１に支持され、側蓋部材３２及び隙間調整部材３５は、外筒３１における他端部に固定され、外筒３１の内面における側蓋部材３２の内側に隣接して受圧部材３３が固定される一方、配管１０６の外面における受圧部材３３に隣接して突起部３４が固定されている。配管１０６が破断したとき、外筒３１により配管１０６の破断部から噴出する流体を堰き止めることができると共に、配管１０６の突起部３４が外筒３１の受圧部材３３に係止され、破断した配管１０６の他端部側へ移動する動作を防止することができ、配管１０６の周囲への流体の噴出を抑制することができると共に、配管１０６における破断の進行を抑制することができる。   In the pipe protection device according to the second embodiment, one end of the outer cylinder 31 is supported by the wall 41, and the side cover member 32 and the gap adjusting member 35 are fixed to the other end of the outer cylinder 31, and the outer cylinder 31. The pressure receiving member 33 is fixed adjacent to the inner side of the side lid member 32 on the inner surface of the pipe 106, while the protrusion 34 is fixed adjacent to the pressure receiving member 33 on the outer surface of the pipe 106. When the pipe 106 is broken, the fluid ejected from the broken portion of the pipe 106 can be blocked by the outer cylinder 31, and the protruding portion 34 of the pipe 106 is locked to the pressure receiving member 33 of the outer cylinder 31 to break the pipe. The movement to the other end side of 106 can be prevented, the ejection of fluid around pipe 106 can be suppressed, and the progress of breakage in pipe 106 can be suppressed.

なお、第２実施形態において、一端部が壁部４１に支持された配管１０６に対して配管防護装置３０を設けたが、第１実施形態のように、外周面が周囲の支持部材に支持された配管１０６に対して配管防護装置３０を設けてもよい。   In the second embodiment, the pipe protection device 30 is provided for the pipe 106 whose one end is supported by the wall 41. However, as in the first embodiment, the outer peripheral surface is supported by a surrounding support member. A pipe protection device 30 may be provided for the pipe 106.

［第３実施形態］
図１０は、第３実施形態の配管防護装置を表す断面図である。なお、上述した実施形態と同様の機能を有する部材には、同一の符号を付して詳細な説明は省略する。 [Third Embodiment]
FIG. 10 is a cross-sectional view illustrating a pipe protection device according to the third embodiment. In addition, the same code | symbol is attached | subjected to the member which has the same function as embodiment mentioned above, and detailed description is abbreviate | omitted.

第３実施形態において、図１０に示すように、配管防護装置５０は、断面が円形状をなす配管１０６の外側に設けられるものであり、外筒１１と、側蓋部材１２，１３と、受圧部材１４，１５と、突起部１６，１７と、隙間調整部材５１，５２とを有している。ここで、外筒１１、側蓋部材１２，１３、受圧部材１４，１５、突起部１６，１７は、前述した第１実施形態と同様であるため、説明は省略する。   In the third embodiment, as shown in FIG. 10, the pipe protection device 50 is provided outside the pipe 106 having a circular cross section, and includes an outer cylinder 11, side lid members 12 and 13, and pressure receiving pressure. Members 14 and 15, protrusions 16 and 17, and gap adjusting members 51 and 52 are provided. Here, since the outer cylinder 11, the side cover members 12, 13, the pressure receiving members 14, 15, and the protrusions 16, 17 are the same as those in the first embodiment described above, the description thereof is omitted.

隙間調整部材５１，５２は、側蓋部材１２，１３の内周面に設けられて配管１０６の外周面との隙間量を規定値に設定するものである。隙間調整部材５１，５２は、側蓋部材１２，１３の内周面に取付けられるものであり、単品では、所定長さ及び幅の平板形状をなし、取付状態では、環状をなす形状となる。この隙間調整部材５１，５２は、側蓋部材１２，１３の内周面に固定されることで、側蓋部材１２，１３（隙間調整部材５１，５２）の内周面と配管１０６の外周面との隙間量を規定値に設定する。そのため、隙間調整部材５１，５２は、１個または複数個が重ねられて装着される。   The gap adjusting members 51 and 52 are provided on the inner peripheral surfaces of the side lid members 12 and 13 and set the gap amount with the outer peripheral surface of the pipe 106 to a specified value. The gap adjusting members 51 and 52 are attached to the inner peripheral surfaces of the side lid members 12 and 13, and a single product has a flat plate shape with a predetermined length and width, and has an annular shape when attached. The gap adjusting members 51 and 52 are fixed to the inner peripheral surface of the side lid members 12 and 13, so that the inner peripheral surface of the side lid members 12 and 13 (gap adjusting members 51 and 52) and the outer peripheral surface of the pipe 106 are arranged. Set the gap amount to the specified value. Therefore, one or a plurality of gap adjusting members 51 and 52 are mounted in a stacked manner.

即ち、配管１０６に対して、外筒１１に側蓋部材１２，１３が固定されることで、側蓋部材１２，１３の内周面と配管１０６の外周面との間に隙間Ｇ１，Ｇ２が確保される。そして、側蓋部材１２，１３の内周面に所定数の隙間調整部材５１，５２を固定することで、規定値の隙間Ｇ７，Ｇ８が設定される。この場合、隙間調整部材５１，５２は、溶接または接着により側蓋部材１２，１３の内周面に固定される。   That is, by fixing the side cover members 12 and 13 to the outer cylinder 11 with respect to the pipe 106, gaps G 1 and G 2 are formed between the inner peripheral surface of the side cover members 12 and 13 and the outer peripheral surface of the pipe 106. Secured. A predetermined number of gaps G7 and G8 are set by fixing a predetermined number of gap adjustment members 51 and 52 to the inner peripheral surfaces of the side lid members 12 and 13. In this case, the gap adjusting members 51 and 52 are fixed to the inner peripheral surfaces of the side lid members 12 and 13 by welding or adhesion.

そのため、配管１０６が破断すると、配管１０６は、この破断部を起点として互いに離間しようとする。このとき、配管１０６は、突起部１６，１７が受圧部材１４，１５に当接して係止されることから、破断した配管１０６の移動が阻止される。そのため、配管１０６は、破断部から流体が流出するものの、この流体は、外筒１１と側蓋部材１２，１３と隙間調整部材５１，５２に覆われた空間部Ｓに留まることとなり、外筒１１の外部への流体の噴出が抑制される。   Therefore, when the pipes 106 are broken, the pipes 106 try to be separated from each other starting from the broken part. At this time, since the protruding portions 16 and 17 abut on the pressure receiving members 14 and 15 and the piping 106 is locked, the movement of the broken piping 106 is prevented. Therefore, although the fluid flows out from the broken portion in the pipe 106, the fluid remains in the space portion S covered with the outer cylinder 11, the side cover members 12 and 13, and the gap adjusting members 51 and 52. The ejection of the fluid to the outside of 11 is suppressed.

このように第３実施形態の配管防護装置にあっては、流体が流通する配管１０６の外周を覆う外筒１１と、外筒１１における軸方向の端部に固定されるリング形状をなす側蓋部材１２，１３と、側蓋部材１２，１３の内周面に設けられて配管１０６の外周面との隙間量を規定値に設定する隙間調整部材５１，５２とを設けている。   As described above, in the pipe protection device according to the third embodiment, the outer cylinder 11 that covers the outer periphery of the pipe 106 through which the fluid flows, and the side cover that forms a ring shape that is fixed to the end of the outer cylinder 11 in the axial direction. Gap adjustment members 51 and 52 are provided on the inner peripheral surfaces of the members 12 and 13 and set on the inner peripheral surfaces of the side cover members 12 and 13 to set the gap amount between the outer peripheral surfaces of the pipes 106 to a specified value.

従って、配管１０６が破断したとき、外周が外筒１１により覆われていることから、破断部から噴出する流体がこの外筒１１により堰き止められ、配管１０６の周囲への流体の噴出を抑制することができる。しかも、外筒１１は、端部が側蓋部材１２，１３と隙間調整部材５１，５２により配管１０６の外周面との隙間量が規定値に設定されることから、外筒１１の端部からの流体の漏洩を抑制することができる。また、隙間調整部材５１，５２を側蓋部材１２，１３の内面に固定することで、隙間調整部材５１，５２が側蓋部材１２，１３の外方に突出することがなく、外観品質を向上することができる。   Therefore, since the outer periphery is covered with the outer cylinder 11 when the pipe 106 is broken, the fluid ejected from the fractured portion is blocked by the outer cylinder 11, and the ejection of the fluid around the pipe 106 is suppressed. be able to. In addition, since the outer cylinder 11 is set to have a predetermined clearance from the outer peripheral surface of the pipe 106 by the side cover members 12 and 13 and the gap adjusting members 51 and 52, the end of the outer cylinder 11 starts from the end of the outer cylinder 11. The leakage of fluid can be suppressed. Further, by fixing the gap adjusting members 51 and 52 to the inner surfaces of the side lid members 12 and 13, the gap adjusting members 51 and 52 do not protrude outward from the side lid members 12 and 13, and the appearance quality is improved. can do.

［第４実施形態］
図１１は、第４実施形態の配管防護装置を表す断面図である。なお、上述した実施形態と同様の機能を有する部材には、同一の符号を付して詳細な説明は省略する。 [Fourth Embodiment]
FIG. 11 is a cross-sectional view illustrating the piping protection device of the fourth embodiment. In addition, the same code | symbol is attached | subjected to the member which has the same function as embodiment mentioned above, and detailed description is abbreviate | omitted.

第４実施形態において、図１１に示すように、配管防護装置６０は、断面が円形状をなす配管１０６の外側に設けられるものであり、外筒１１と、側蓋部材１２，１３と、受圧部材１４，１５と、突起部１６，１７と、隙間調整部材６１，６２とを有している。ここで、外筒１１、側蓋部材１２，１３、受圧部材１４，１５、突起部１６，１７は、前述した第１実施形態と同様であるため、説明は省略する。   In the fourth embodiment, as shown in FIG. 11, the pipe protection device 60 is provided outside the pipe 106 having a circular cross section, and includes an outer cylinder 11, side lid members 12 and 13, and pressure receiving pressure. Members 14 and 15, protrusions 16 and 17, and gap adjusting members 61 and 62 are provided. Here, since the outer cylinder 11, the side cover members 12, 13, the pressure receiving members 14, 15, and the protrusions 16, 17 are the same as those in the first embodiment described above, the description thereof is omitted.

隙間調整部材６１，６２は、側蓋部材１２，１３の外側の端面に設けられて配管１０６の外周面との隙間量を規定値に設定するものである。隙間調整部材６１，６２は、側蓋部材１２，１３の端面に溶接により固定されることで、側蓋部材１２，１３（隙間調整部材６１，６２）の内周面と配管１０６の外周面との隙間量を規定値に設定する。隙間調整部材６１，６２は、配管１０６の外周面との隙間量を調整可能な調整部６３，６４を有している。   The gap adjusting members 61 and 62 are provided on the outer end surfaces of the side lid members 12 and 13 and set the gap amount with the outer peripheral surface of the pipe 106 to a specified value. The gap adjusting members 61 and 62 are fixed to the end surfaces of the side lid members 12 and 13 by welding, so that the inner peripheral surface of the side lid members 12 and 13 (gap adjusting members 61 and 62) and the outer peripheral surface of the pipe 106 are Set the gap amount to the specified value. The gap adjustment members 61 and 62 have adjustment portions 63 and 64 that can adjust the gap amount with the outer peripheral surface of the pipe 106.

即ち、隙間調整部材６１，６２は、円環形状をなし、外側の端面に配管１０６の外周面に沿ったリング形状をなす調整部６３，６４が一体に設けられている。そして、配管１０６に対して、外筒１１、側蓋部材１２，１３、受圧部材１４，１５、隙間調整部材６１，６２が固定されたとき、隙間調整部材６１，６２の調整部６３，６４は、図１１に二点鎖線で示すように、配管１０６の外周面に平行をなしている。ここで、図示しない治具により、調整部６３，６４を加熱し、先端部が配管１０６の外周面に接近するように変形させることで、図１１に実線で示すように、調整部６３，６４の他端部と配管１０６の外周面との間に隙間Ｇ７，Ｇ８が確保される。   That is, the gap adjusting members 61 and 62 have an annular shape, and adjustment portions 63 and 64 that form a ring shape along the outer peripheral surface of the pipe 106 are integrally provided on the outer end surface. When the outer cylinder 11, the side cover members 12 and 13, the pressure receiving members 14 and 15, and the gap adjustment members 61 and 62 are fixed to the pipe 106, the adjustment portions 63 and 64 of the gap adjustment members 61 and 62 are As shown by a two-dot chain line in FIG. 11, the pipe 106 is parallel to the outer peripheral surface. Here, the adjusting parts 63 and 64 are heated by a jig (not shown) and deformed so that the tip part approaches the outer peripheral surface of the pipe 106, thereby adjusting the parts 63 and 64 as shown by a solid line in FIG. Gaps G7 and G8 are secured between the other end of the pipe and the outer peripheral surface of the pipe 106.

そのため、配管１０６が破断すると、配管１０６は、この破断部を起点として互いに離間しようとする。このとき、配管１０６は、突起部１６，１７が受圧部材１４，１５に当接して係止されることから、破断した配管１０６の移動が阻止される。そのため、配管１０６は、破断部から流体が流出するものの、この流体は、外筒１１と側蓋部材１２，１３と隙間調整部材６１，６２に覆われた空間部Ｓに留まることとなり、外筒１１の外部への流体の噴出が抑制される。   Therefore, when the pipes 106 are broken, the pipes 106 try to be separated from each other starting from the broken part. At this time, since the protruding portions 16 and 17 abut on the pressure receiving members 14 and 15 and the piping 106 is locked, the movement of the broken piping 106 is prevented. Therefore, although the fluid flows out from the broken portion in the pipe 106, this fluid remains in the space portion S covered with the outer cylinder 11, the side cover members 12 and 13, and the gap adjusting members 61 and 62, and the outer cylinder The ejection of the fluid to the outside of 11 is suppressed.

このように第４実施形態の配管防護装置にあっては、流体が流通する配管１０６の外周を覆う外筒１１と、外筒１１における軸方向の端部に固定されるリング形状をなす側蓋部材１２，１３と、側蓋部材１２，１３に設けられて配管１０６の外周面との隙間量を規定値に設定する隙間調整部材６１，６２とを設け、隙間調整部材６１，６２は、配管１０６の外周面との隙間量を調整可能な調整部６３，６４を有している。   As described above, in the pipe protection device according to the fourth embodiment, the outer cylinder 11 that covers the outer periphery of the pipe 106 through which the fluid flows, and the side cover that forms a ring shape that is fixed to the end of the outer cylinder 11 in the axial direction. Gap adjustment members 61 and 62 that are provided on the side cover members 12 and 13 and set the gap amount between the outer peripheral surface of the pipe 106 to a specified value are provided. The gap adjustment members 61 and 62 are pipes. It has the adjustment parts 63 and 64 which can adjust the gap | interval amount with the outer peripheral surface of 106.

従って、配管１０６が破断したとき、外周が外筒１１により覆われていることから、破断部から噴出する流体がこの外筒１１により堰き止められ、配管１０６の周囲への流体の噴出を抑制することができる。しかも、外筒１１は、端部が側蓋部材１２，１３と隙間調整部材６１，６２により配管１０６の外周面との隙間量が規定値に設定されることから、外筒１１の端部からの流体の漏洩を抑制することができる。また、隙間調整部材６１，６２が調整部６３，６４を有することで、異なる外径の配管１０６に対して隙間調整部材６１，６２の共通化が可能となり、部品コストを低減することができる。   Therefore, since the outer periphery is covered with the outer cylinder 11 when the pipe 106 is broken, the fluid ejected from the fractured portion is blocked by the outer cylinder 11, and the ejection of the fluid around the pipe 106 is suppressed. be able to. In addition, since the outer cylinder 11 has a gap amount between the outer lid surface of the pipe 106 set to a specified value by the side lid members 12 and 13 and the gap adjusting members 61 and 62, the end of the outer cylinder 11 starts from the end of the outer cylinder 11. The leakage of fluid can be suppressed. Further, since the gap adjusting members 61 and 62 have the adjusting portions 63 and 64, the gap adjusting members 61 and 62 can be made common to the pipes 106 having different outer diameters, and the component cost can be reduced.

なお、上述した第１、第２、第４実施形態において、隙間調整部材１８，１９，３５，６１，６２を側蓋部材１２，１３，３２の外端面に固定したが、内端面に固定してもよい。また、隙間調整部材１８，１９，３５，６１，６２を１組としたが、複数設けてもよい。   In the first, second, and fourth embodiments described above, the gap adjusting members 18, 19, 35, 61, 62 are fixed to the outer end surfaces of the side cover members 12, 13, 32, but are fixed to the inner end surfaces. May be. Further, although the gap adjusting members 18, 19, 35, 61, 62 are set as one set, a plurality of gap adjusting members may be provided.

また、上述した実施形態において、配管防護装置の適用は配管の直管部分として図示しているが、配管の曲部においても配管防護装置を適用することができる。この場合の配管の延在方向とは、曲がった後に向く各方向をいう。   In the embodiment described above, the application of the pipe protection device is illustrated as a straight pipe portion of the pipe, but the pipe protection device can also be applied to a curved portion of the pipe. The extending direction of the piping in this case refers to each direction facing after bending.

また、上述した原子力設備は、加圧水型原子炉（ＰＷＲ：Pressurized Water Reactor）が用いられたものを説明したが、この限りではない。例えば、図には明示しないが、沸騰型原子炉（ＢＷＲ：Boiling Water Reactor）が用いられた原子力設備であってもよく、配管防護装置は、沸騰型原子炉にて発生した蒸気を通過させる配管についても適用することができる。更に、本発明の配管防護装置は、原子力設備だけでなく、気体や液体などの流体を輸送する配管であれば、いずれの配管に対しても適用することができる。   Moreover, although the nuclear facility mentioned above demonstrated what used the pressurized water reactor (PWR: Pressurized Water Reactor), it is not this limitation. For example, although not shown in the figure, it may be a nuclear facility using a boiling water reactor (BWR), and the pipe protection device is a pipe through which steam generated in the boiling reactor passes. Can also be applied. Furthermore, the piping protection device of the present invention can be applied not only to nuclear facilities but also to any piping as long as it is a piping that transports a fluid such as gas or liquid.

１０，３０，５０，６０ 配管防護装置
１１，３１ 外筒
１２，１３，３２ 側蓋部材
１４，１５，３３ 受圧部材（係止部材）
１６，１７，３４ 突起部
１８，１９，３５，５１，５２，６１，６２ 隙間調整部材
６３，６４ 調整部
２１ 固定部材
２２ 支持部材
４１ 壁部（支持部材）
４２ 貫通孔
１０６ 配管 10, 30, 50, 60 Piping protection device 11, 31 Outer cylinder 12, 13, 32 Side cover member 14, 15, 33 Pressure receiving member (locking member)
16, 17, 34 Protrusion 18, 19, 35, 51, 52, 61, 62 Gap adjustment member 63, 64 Adjustment part 21 Fixing member 22 Support member 41 Wall part (support member)
42 Through hole 106 Piping

Claims (11)

流体が流通する配管の外周を覆う外筒と、
前記外筒における軸方向の端部に固定されるリング形状をなす側蓋部材と、
前記側蓋部材に設けられて前記配管の外面との隙間量を規定値に設定する隙間調整部材と、
を有することを特徴とする配管防護装置。 An outer cylinder covering the outer periphery of the pipe through which the fluid flows;
A side lid member having a ring shape fixed to an axial end of the outer cylinder;
A gap adjusting member that is provided on the side lid member and sets a gap amount with the outer surface of the pipe to a specified value;
A piping protection device characterized by comprising: 前記側蓋部材及び前記隙間調整部材は、前記外筒における軸方向の一端部と他端部に固定され、前記外筒の内面における前記側蓋部材の内側に隣接して一対の係止部材が固定される一方、前記配管の外面における前記一対の係止部材の間で前記係止部材に隣接して一対の突起部が固定されることを特徴とする請求項１に記載の配管防護装置。   The side lid member and the gap adjusting member are fixed to one end and the other end in the axial direction of the outer cylinder, and a pair of locking members are adjacent to the inside of the side lid member on the inner surface of the outer cylinder. The pipe protection device according to claim 1, wherein a pair of protrusions are fixed adjacent to the locking member between the pair of locking members on the outer surface of the pipe while being fixed. 前記外筒は、周囲に支持され、前記側蓋部材及び前記隙間調整部材は、前記外筒における軸方向の端部に固定され、前記外筒の内面における前記側蓋部材の内側に隣接して係止部材が固定される一方、前記配管の外面における前記係止部材に隣接して突起部が固定されることを特徴とする請求項１に記載の配管防護装置。   The outer cylinder is supported around, the side lid member and the gap adjusting member are fixed to an axial end of the outer cylinder, and adjacent to the inner side of the side lid member on the inner surface of the outer cylinder. The piping protection device according to claim 1, wherein the locking member is fixed, and the protrusion is fixed adjacent to the locking member on the outer surface of the pipe. 前記隙間調整部材は、前記側蓋部材における一方の端面に固定されることを特徴とする請求項２または請求項３に記載の配管防護装置。   The piping protection device according to claim 2, wherein the gap adjusting member is fixed to one end surface of the side lid member. 前記隙間調整部材は、前記側蓋部材における内面に固定されることを特徴とする請求項２または請求項３に記載の配管防護装置。   The pipe protection device according to claim 2, wherein the gap adjusting member is fixed to an inner surface of the side lid member. 前記隙間調整部材は、前記側蓋部材における外端面に固定され、前記配管の外面との隙間量を調整可能な調整部を有することを特徴とする請求項２または請求項３に記載の配管防護装置。   The pipe clearance according to claim 2 or 3, wherein the gap adjustment member has an adjustment portion that is fixed to an outer end surface of the side cover member and that can adjust an amount of the gap with the outer surface of the pipe. apparatus. 前記隙間調整部材と前記配管との隙間は、前記側蓋部材と前記配管との隙間より小さく設定されることを特徴とする請求項１から請求項６のいずれか一項に記載の配管防護装置。   The pipe protection device according to any one of claims 1 to 6, wherein a gap between the gap adjusting member and the pipe is set smaller than a gap between the side cover member and the pipe. . 前記外筒と前記側蓋部材と前記隙間調整部材は、径方向に分割された複数の分割部により構成されることを特徴とする請求項１から請求項７のいずれか一項に記載の配管防護装置。   The piping according to any one of claims 1 to 7, wherein the outer cylinder, the side lid member, and the gap adjusting member are configured by a plurality of divided portions that are divided in a radial direction. Protective device. 前記配管は、外面が固定部材を介して周囲に支持され、前記外筒は、前記固定部材が挿通される開口部が設けられ、前記開口部の開口縁が前記固定部材に接続されることを特徴とする請求項２から請求項８のいずれか一項に記載の配管防護装置。   An outer surface of the pipe is supported around a fixing member, the outer cylinder is provided with an opening through which the fixing member is inserted, and an opening edge of the opening is connected to the fixing member. The piping protection device according to any one of claims 2 to 8, wherein the piping protection device is characterized. 前記配管は、軸方向における一端部が周囲の支持部材に支持され、前記外筒は、一端部が前記支持部材に固定され、他端部に前記係止部材が固定されることを特徴とする請求項３から請求項８のいずれか一項に記載の配管防護装置。   One end portion in the axial direction of the pipe is supported by a surrounding support member, and one end portion of the outer cylinder is fixed to the support member, and the locking member is fixed to the other end portion. The piping protective device according to any one of claims 3 to 8. 原子炉で生成された熱により高温・高圧の流体を発生させて配管で送り、前記流体を利用する原子力設備であって、
前記配管に請求項１から請求項１０のいずれか一項に記載の配管防護装置が適用される、
ことを特徴とする原子力設備。 A nuclear facility that generates a high-temperature and high-pressure fluid by heat generated in a nuclear reactor and sends it through piping, and uses the fluid,
The pipe protection device according to any one of claims 1 to 10 is applied to the pipe.
Nuclear facilities characterized by that.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111599492A (en) * 2020-05-09 2020-08-28 哈尔滨工程大学 Press down pipe and applied this suppression pipe's suppression pond

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51130799A (en) * 1975-05-10 1976-11-13 Mikuni Jukogyo Kk Method and device of shielding of radio activity from radio-active pip e
JPS5393293A (en) * 1977-01-28 1978-08-16 Hitachi Ltd Pipe whip prevention device
JP2002162491A (en) * 2000-11-27 2002-06-07 Kawasaki Heavy Ind Ltd Flow restrictor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51130799A (en) * 1975-05-10 1976-11-13 Mikuni Jukogyo Kk Method and device of shielding of radio activity from radio-active pip e
JPS5393293A (en) * 1977-01-28 1978-08-16 Hitachi Ltd Pipe whip prevention device
JP2002162491A (en) * 2000-11-27 2002-06-07 Kawasaki Heavy Ind Ltd Flow restrictor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111599492A (en) * 2020-05-09 2020-08-28 哈尔滨工程大学 Press down pipe and applied this suppression pipe's suppression pond

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